A welding and fixing device for thermal pipelines

Abstract

This utility model relates to the field of auxiliary equipment technology for pipeline welding, and in particular to a fixing device for welding thermal pipelines. It addresses the technical problem of limited actual welding positions and lack of stable fixing fixtures for thermal pipelines in existing technologies. Specifically, it includes a first clamping component and a second clamping assembly, driven by an operating mechanism that can be manually operated. A connecting component connects to the operating mechanism via a connecting block. This allows for stable fixing of the thermal pipeline at three radial positions at the welding end. The size of the base of the first clamping component and the second clamping assembly can be adjusted to accommodate mainstream thermal pipeline specifications. The use of a suspension frame and electric hoist allows for compatibility with existing construction techniques, eliminating the need for overly complex configurations, maximizing space utilization, ensuring a clean and tidy welding site, and improving the welding working environment.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for pipeline welding, and in particular to a fixing device for welding thermal pipelines. Background Technology

[0002] In current methods, most welding of thermal pipelines uses V-grooves, requiring sufficient blunt edge thickness and assembly gap. The grooves also need to be thoroughly cleaned to ensure exposed metallic luster. These are the basic welding requirements for conventional newly constructed thermal pipeline facilities. However, in practice, when maintaining or renovating thermal pipelines, such as demineralized water and deoxygenated water pipelines with a nominal diameter greater than DN100, the difficulty lies in the limitations of the welding position, making it difficult to effectively guarantee the welding assembly. For the maintenance of thermal pipeline sections, it is necessary to ensure the center of the connecting pipes to form a suitable welding assembly. Most maintenance work involves suspending the pipe opening with wire ropes and adjusting the pipe ends using equipment such as electric hoists. However, the wire ropes act directly on the pipe ends, resulting in limited stability and causing repeated adjustments and construction. Utility Model Content

[0003] This invention aims to solve the technical problems of limited actual welding positions and lack of stable fixing fixtures for heating pipes in the prior art, and provides a fixing device for welding heating pipes.

[0004] A welding and fixing device for thermal pipelines, comprising: The first clamping component and the second clamping assembly are driven by the operating mechanism, such that the first clamping component forms a first clamping point at the top of the pipe, and the second clamping assembly forms two second clamping points on the inferior arc side of the pipe. A connecting component that can be connected to the operating mechanism via a connecting block; The connecting block can be connected to a suspension bracket via an electric hoist, and the suspension bracket is arranged at the welding work position of the pipeline.

[0005] Specifically, the operating mechanism includes a manually operated crossbar; The manually operated crossbar includes a smooth bar section and ends disposed on both sides of the bar section; The diameter of the end is larger than the diameter of the rod. The two ends of the rod are provided with connecting threads; The end portion is connected to the rod portion by a thread.

[0006] Specifically, the operating mechanism further includes: a rotating screw; An actuating sleeve is provided at the top of the rotating screw; The actuating sleeve has a radially arranged operating handle through hole, through which the rod can pass.

[0007] Specifically, the rotating screw is screwed onto a connecting part, and one end of the screw passing through the connecting part is connected to the first clamping component via a rotating bearing.

[0008] Specifically, the first clamping component includes: The main body has a first clamping body connected to its lower part; A first clamping surface is formed below the first clamping body; The first clamping body has two ends formed by two sets of first connecting pieces, and the first connecting pieces are provided with hinge holes.

[0009] Specifically, the second clamping assembly includes two sets of clamping hooks arranged symmetrically; The lower end of each set of clamping hooks is bent and connected to a second clamping body; The end of the second clamping body forms a second clamping portion, and a second clamping surface is formed on the second clamping portion; The upper end of the clamping hook is rotatably connected to both ends of the connecting part; The sliding strip groove is provided at an angle along the length of each of the second clamping bodies.

[0010] Specifically, it also includes: A hinge rod, which passes through the corresponding sliding groove and is fixedly connected to the corresponding hinge hole; The diameter of the hinge rod is smaller than the width of the sliding groove.

[0011] Specifically, a set of connecting blocks is provided on each side of the connecting portion; A suspension ring is provided above the connecting block; The suspension ring is connected to the connecting hook of the electric hoist via a steel wire rope; The suspension frame includes a balance beam and support frames installed on both sides of the balance. The electric hoist is fixedly installed on the load cell frame.

[0012] This utility model has the following beneficial effects: The first clamping component and the second clamping assembly are driven by an operating mechanism that can be operated manually. The connecting component can be connected to the operating mechanism via a connecting block. It can stably fix the end of the hot pipe at three radial positions. The size of the foundation of the first clamping component and the second clamping assembly can be changed to correspond to the mainstream specifications of hot pipes. The use of a suspension frame and electric hoist can be matched with existing construction technology without excessively complex configuration. It has high space utilization, can ensure a clean and tidy tapping site, and improve the welding working environment. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a three-dimensional structural diagram of the first clamping component and the second clamping assembly of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the second clamping component of this utility model; Figure 4 This is a schematic diagram showing the configuration of the hinge rod of this utility model; Figure 5 This is a schematic diagram of the suspension ring configuration of this utility model.

[0015] First clamping component 10, second clamping assembly 20, operating mechanism 30, pipe 1; First clamping point A, second clamping point B; Connecting component 40, connecting block 403; 2 electric hoists, 50mm suspension frame; Manually operate the crossbar 310, bar section 311, and end section 312; Rotary action screw 320, action sleeve 321, operating handle through hole 322; Connecting part 401, body 100, first clamping body 101, first clamping surface 101a; First connecting piece 101b, hinge hole 102; Clamping hook 201, second clamping body 202; second clamping surface 202a, sliding strip groove 203; Hinge rod 204, suspension ring 404, connecting hook 3, balance beam frame 501, support frame 502. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. It should be noted that, for ease of description, in this application, "left side" is referred to as "first end", "right side" as "second end", "upper side" as "first end", and "lower side" as "second end" in the current view. The purpose of such description is to clearly express the technical solution and should not be construed as an improper limitation of the technical solution of this application.

[0017] This invention addresses the technical problems of limited actual welding positions and lack of stable fixing fixtures for welding thermal pipelines in existing technologies. It provides a fixing device for welding thermal pipelines. In practical application, this solution is preferably used at the welding position for thermal pipelines to be assembled and welded. The choice between one or two sets depends on the specific on-site construction requirements. For example, if stabilization of one end of the thermal pipeline is required, one set is used; when stabilization of both ends of the assembled thermal pipeline is required, two sets can be used. Please refer to the appendix for details. Figure 1 , 2 As shown in Figure 3, the device for fixing welding thermal pipelines includes: The first clamping component 10 and the second clamping assembly 20 are driven by the operating mechanism 30, which can be operated manually, so that the first clamping component 10 forms a first clamping point A at the top of the pipe 1, and the second clamping assembly 20 forms two second clamping points B on the inferior arc side of the pipe 1. The connecting component 40 is connected to the operating mechanism 30 via the connecting block 403; The connecting block 403 can be connected to a suspension bracket 50 via an electric hoist 2. The suspension bracket 50 is arranged at the welding work position of the pipe 1. Through the above technical solution, the pipe can be stably fixed at three radial positions at the welded end of the thermal pipe. The size of the base of the first clamping component 10 and the second clamping assembly 20 can be changed to correspond to mainstream specifications, such as DN100 and DN150 thermal pipes, and the operating mechanism 30 can be operated manually. The use of a suspension frame 50 and an electric hoist 2 can be matched with existing construction techniques without the need for overly complicated configurations. It also has a high space utilization rate, can ensure a clean and tidy tapping site, and improve the welding working environment.

[0018] In one specific embodiment, please refer to Figure 1 , 3As shown, the operating mechanism 30 includes a manually operated crossbar 310; the manually operated crossbar 310 includes a smooth rod portion 311 and end portions 312 disposed on both sides of the rod portion 311; the diameter of the end portions 312 is larger than the diameter of the rod portion 311; the two ends of the rod portion 311 are provided with connecting threads; the end portions 312 are connected to the rod portion 311 by threads. The smooth rod portion 311 is used to pass through the actuating sleeve 321, and the end portions 312 serve as a limiting function. This solution requires manual operation to repeatedly change the force position of the rod portion 311, and to achieve rotational adjustment with the actuating sleeve 321 as the center. Further implementation methods are as shown in the appendix. Figure 1 , 3 As shown, the operating mechanism 30 includes: a rotating action screw 320; an action sleeve 321 is provided on the top of the rotating action screw 320; an operating handle through hole 322 is provided radially on the action sleeve 321, and the rod portion 311 can pass through the operating handle through hole 322.

[0019] In one specific embodiment, please refer to Figure 1 , 3 As shown, The rotary action screw 320 is screwed onto a connecting part 401, and one end of the screw passing through the connecting part 401 is connected to the first clamping member 10 via a rotary bearing 402. The first clamping component 10 includes: The main body 100 has a first clamping body 101 connected to its lower part; A first clamping surface 101a is formed below the first clamping body 101; The two ends of the first clamping body 101 are formed by two sets of first connecting pieces 101b, and the first connecting pieces 101b are provided with hinge holes 102.

[0020] The second clamping assembly 20 includes two sets of clamping hooks 201 arranged symmetrically; Each set of clamping hooks 201 has a curved lower end and is connected to a second clamping body 202; The end of the second clamping body 202 forms a second clamping portion, and a second clamping surface 202a is formed on the second clamping portion; The upper end of the clamping hook 201 is rotatably connected to both ends of the connecting part 401; Sliding groove 203: Each set of second clamping bodies 202 is provided with a sliding groove 203 at an angle along the length direction of the second clamping body 202.

[0021] It also includes: a hinge rod 204, which passes through the corresponding sliding groove 203 and is fixedly connected to the corresponding hinge hole 102; The diameter of the hinge rod 204 is smaller than the width of the sliding groove 203.

[0022] With the above configuration, the method for adjusting the clamping of pipe 1 using the manual operation of the crossbar 310 is as follows: Step 1: First, manually operate the horizontal bar 310 to rotate in the opposite direction to maximize the opening and closing of the clamping hook 201, placing it at the end of the pipe 1 to be welded. When the reciprocating adjustment rod 311 is in the position of the action sleeve 321 and achieves forward rotation, the hinge rod 204 in the sliding strip groove 203 of the clamping hook 201 moves downwards into the sliding strip groove 203. The hinge rod 204 is limited by the sliding strip groove 203, and the downward movement of the hinge rod 204 is achieved by the action of the body 100. In this scheme, when the rotating action screw 320 rotates, the rotating action screw 320 continuously moves downwards. The rotating action screw 320 is connected to the body 100 by a rotating bearing 402, so the body 100 will move downwards accordingly, ultimately achieving the clamping action of the first clamping body 101 and the second clamping body 202.

[0023] In one specific embodiment, please refer to Figure 1-5 As shown, a set of connecting blocks 403 are provided on both sides of the connecting part 401 to ensure balanced configuration; A suspension ring 404 is provided above the connecting block 403; the suspension ring 404 is connected to the connecting hook 3 of the electric hoist 2 via a steel wire rope 4; The suspension frame 50 includes a balance beam frame 501 and support frames 502 set on both sides of the balance. The electric hoist 2 is fixedly installed on the balance beam frame 501.

[0024] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A heat pipe welding fixture, comprising: include: The first clamping component (10) and the second clamping assembly (20) are driven by the operating mechanism (30) such that the first clamping component (10) forms a first clamping point (A) at the top of the pipe (1), and the second clamping assembly (20) forms two second clamping points (B) on the inferior arc side of the pipe (1). A connecting component (40) is capable of connecting the operating mechanism (30) via a connecting block (403); The connecting block (403) can be connected to a suspension bracket (50) via an electric hoist (2), the suspension bracket (50) being arranged at the welding work position of the pipe (1).

2. The heat pipe welding fixture of claim 1, wherein, The operating mechanism (30) includes a manually operated crossbar (310); The manual operating crossbar (310) includes a smooth bar portion (311) and end portions (312) disposed on both sides of the bar portion (311). The diameter of the end portion (312) is larger than the diameter of the rod portion (311); The rod (311) has connecting threads at both ends; The end portion (312) is connected to the rod portion (311) by a thread.

3. The heat pipe welding fixture of claim 2, wherein, The operating mechanism (30) further includes: a rotary action screw (320); The top of the rotary screw (320) is provided with an actuating sleeve (321). The actuating sleeve (321) is provided with an operating handle through hole (322) in the radial direction, and the rod (311) can pass through the operating handle through hole (322).

4. The heat pipe welding fixture of claim 3, wherein, The rotating screw (320) is screwed onto a connecting part (401), and one end of the screw passing through the connecting part (401) is connected to the first clamping component (10) via a rotating bearing (402).

5. The heat pipe welding fixture of claim 4, wherein, The first clamping component (10) includes: The main body (100) has a first clamping body (101) connected to its lower part. A first clamping surface (101a) is formed below the first clamping body (101). The first clamping body (101) is formed by two sets of first connecting pieces (101b) at both ends, and the first connecting pieces (101b) are provided with hinge holes (102).

6. The heat pipe welding fixture of claim 5, wherein, The second clamping assembly (20) includes two sets of clamping hooks (201) arranged symmetrically. Each set of clamping hooks (201) has a bent lower end and is connected to a second clamping body (202). The end of the second clamping body (202) forms a second clamping portion, and a second clamping surface (202a) is formed on the second clamping portion. The upper end of the clamping hook (201) is rotatably connected to both ends of the connecting part (401); The sliding groove (203) is provided obliquely on each group of the second clamping bodies (202) along the length direction of the second clamping body (202).

7. The heat pipe welding fixture of claim 6, wherein, It also includes: The hinge rod (204) passes through the corresponding sliding groove (203) and is fixedly connected to the corresponding hinge hole (102); The diameter of the hinge rod (204) is smaller than the width of the sliding groove (203).

8. The heat pipe welding fixture of claim 7, wherein, A set of connecting blocks (403) is provided on both sides of the connecting part (401). A suspension ring (404) is provided above the connecting block (403); The suspension ring (404) is connected to the connecting hook (3) of the electric hoist (2) via a steel wire rope (4); The suspension frame (50) includes a beam frame (501) and support frames (502) set on both sides of the measuring frame. The electric hoist (2) is fixedly installed on the beam frame (501).

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