Boiler pipeline connecting and fixing structure
By designing a pre-limiting mechanism and a boiler pipe connection fixing structure with an inclined structure, the support problem during vertical pipe welding is solved, ensuring the stability and safety of the welding process, reducing labor costs and improving welding efficiency.
Patent Information
- Application Number
- CN202422754657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The existing pipe joint device lacks a stable support structure when welding vertical pipes, which requires operators to support for a long time and reduces the convenience of use.
A boiler pipe connection and fixing structure was designed, including a pre-limiting mechanism, a sliding plate, an adjustment block and an adjustment handwheel. Multiple sets of pre-limiting mechanisms were arranged equidistantly along the central axis, abutment blocks and inclined structures were used to provide stable support, and the initial fixation of the pipe was achieved through inserting plates and limiting plates.
It achieves stability and safety in the vertical pipeline welding process, reduces labor costs, improves welding efficiency and convenience, and avoids pipeline deformation or damage caused by single-point force.
Smart Images
Figure CN223338777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of boiler pipeline welding, in particular to a boiler pipeline connection and fixing structure. Background Art
[0002] Pipeline welding docking devices are key equipment in pipeline construction. They achieve precise docking of pipelines through mechanical, hydraulic or pneumatic means. These devices have the advantages of improving docking accuracy, saving time and manpower, strong adaptability, and safety and reliability. In actual applications, pipe welding docking devices have been widely used in many fields, providing a strong guarantee for the smooth progress of pipeline construction.
[0003] During the welding process of current boilers, it is often necessary to use a pipe docking device to tighten and align the pipes on both sides to facilitate subsequent welding and fixation. However, there is a problem in the actual operation process. Specifically, during the installation process, the existing docking device can support and fix the docking device through the pipe, the ground, and the operating panel for horizontal pipeline welding operations. However, for vertical pipeline welding operations, there is no relatively stable mechanism to support the docking device. In the early stage of installation of the docking device, the operator is required to support the docking device for a long time, which undoubtedly reduces the convenience of using the docking device. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a boiler pipe connection and fixing structure to solve the technical problem that the current traditional pipe docking device does not have a more effective support structure for the docking device when welding vertical pipes, and the operator needs to support it for a long time.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boiler pipe connection and fixing structure, comprising a first pipe, a second pipe, and a fixing device, a pre-limiting mechanism being provided on the top of the fixing device, the pre-limiting mechanism comprising a mounting block, an adjusting block being provided on the inner side of the mounting block for sliding movement through an empty groove, a sliding plate being provided on one side of the adjusting block for sliding movement through a sliding groove and a slider, an abutting block being provided on one side of the sliding plate, and an adjusting handwheel being provided on the other side of the adjusting block.
[0006] By adopting the above technical solution, the abutment block in the pre-limiting mechanism is configured to directly abut the surface of the first pipe. This abutment action is a key step in the initial fixation of the pipe. It ensures that the fixing device will not move arbitrarily before welding and provides sufficient support and stability.
[0007] Furthermore, the pre-limiting mechanisms are provided in multiple groups and are arranged linearly and equidistantly along the central axis of the fixing device.
[0008] By adopting the above technical solution, the fixing device can effectively abut and fix the first pipe at multiple points. Multiple sets of pre-limiting mechanisms work together to distribute the fixing force more evenly, avoiding deformation or damage of the pipe caused by excessive force at a single point, thereby ensuring the stability and safety of the pipe during the welding process.
[0009] Furthermore, the contact surface between the sliding plate and the adjusting block is an inclined surface structure, and the abutting block is made of rubber.
[0010] By adopting the above technical solution, the inclined surface structure can provide a stable support surface, so that the sliding plate can slide obliquely when subjected to force. This stability ensures that the abutment block can always be tightly abutted against the surface of the first pipe, thereby effectively limiting the movement of the fixing device, thereby forming a stable wedge-shaped locking effect.
[0011] Furthermore, the adjusting hand wheel is rotatably connected to the adjusting block via a thrust bearing and is threadedly connected to the mounting block for adjusting the lateral position of the adjusting block.
[0012] By adopting the above technical solution, it is ensured that when the adjusting handwheel is rotated, the adjusting block can be smoothly driven to move in the empty slot without generating excessive friction resistance. The setting of the thrust bearing also effectively prevents the adjusting block from generating unnecessary axial movement when subjected to force, thereby ensuring the accuracy and stability of the adjustment.
[0013] Furthermore, the fixing device includes a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are rotatably connected, and a limiting frame is rotatably provided on one side of the second fixing frame, and a jacking device is provided on the inner side of the limiting frame.
[0014] By adopting the above technical solution, the fixing device has greater flexibility in adapting to pipes of different diameters or shapes. The operator can adjust the angle between the first fixing frame and the second fixing frame according to actual needs to ensure that the fixing device can fit tightly to the surface of the pipe and provide stable support and fixation.
[0015] Furthermore, a plurality of fixing blocks are provided on the inner sides of the first fixing frame and the second fixing frame, and two sets of abutment bolts are threadedly connected to the fixing blocks, two of which are opposite to each other and have slots formed on them, and insert plates are provided inside the slots, and the insert plates pass through the gap between the first pipe and the second pipe.
[0016] By adopting the above technical solution, an insert plate is inserted into the preset groove on the fixing block and the gap between the first pipe and the second pipe. The insertion of the insert plate not only strengthens the connection stability between the fixing device and the pipe, but also creates conditions for subsequent limiting actions.
[0017] Furthermore, a limit plate is rotatably provided on one side of the fixed block and at a position opposite to the plugging plate, for limiting the position of the plugging plate.
[0018] By adopting the above technical solution, the main function of the limit plate is to limit the position of the plug plate to ensure that it does not move or fall off during the welding process. When the plug plate is inserted into the gap between the fixed block and the pipe through the slot, the operator can rotate the limit plate to make it in close contact with the plug plate, thereby effectively limiting the plug plate.
[0019] In summary, the present invention has the following beneficial effects:
[0020] 1. The present invention uses a pre-limiting mechanism to ensure that the pipe is firmly fixed before welding. The setting of the abutment block enables it to effectively contact the pipe surface and provide the necessary supporting force. At the same time, the deadweight of the fixing device and the inclined abutment structure of the sliding plate and the adjusting block work together to form a wedge-shaped locking structure. The characteristic of this structure is that it can use its own weight and inclined surface design to tightly lock the fixing device and the first pipe together, achieving a preliminary fixation between the two. Due to the existence of the wedge-shaped locking structure, the operator does not need to support the fixing device for a long time during the subsequent continuous adjustment of the fixing device, thereby reducing the output of labor costs and improving the convenience of pipe butt welding.
[0021] 2. The utility model provides a slot, an insert plate, and a limit plate, and inserts the insert plate through the slot provided on the corresponding fixing block and the gap between the first pipe and the second pipe. The insertion of the insert plate not only further enhances the connection stability between the fixing device and the pipe, but also provides conditions for subsequent limiting operations. Then, the position of the insert plate is limited by rotating the limit plate. According to the plug-in use of the insert plate, the fixing device and the pipe are preliminarily fixed. This fixing method is not only simple and convenient, but also can effectively improve welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0023] Figure 2 This is a structural diagram of the pre-limiting mechanism of the utility model;
[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;
[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.
[0026] In the figure: 101, first pipeline; 102, second pipeline; 2, fixing device; 201, first fixing frame; 202, second fixing frame; 203, limiting frame; 204, jacking device; 205, fixing block; 206, abutting bolt; 3, pre-limiting mechanism; 301, mounting block; 302, empty slot; 303, adjusting block; 304, sliding plate; 305, abutting block; 306, adjusting handwheel; 4, slotting; 5, inserting plate; 6, limiting plate. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" 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 or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The following describes an embodiment of the present invention based on its overall structure. Example 1:
[0031] A boiler pipe connection fixing structure, such as Figures 1-4As shown, it includes a first pipe 101, a second pipe 102, and a fixing device 2. A pre-limiting mechanism 3 is provided on the top of the fixing device 2. The pre-limiting mechanism 3 includes a mounting block 301. An adjusting block 303 is slidably provided on the inner side of the mounting block 301 through an empty slot 302. A sliding plate 304 is slidably provided on one side of the adjusting block 303 through a sliding slot and a slider. An abutting block 305 is provided on one side of the sliding plate 304. An adjusting hand wheel 306 is provided on the other side of the adjusting block 303. The abutting block 305 in the pre-limiting mechanism 3 is configured to directly abut the surface of the first pipe 101. This abutting The connecting action is a key step in the initial fixation of the pipeline. It ensures that the fixing device 2 will not move at will before welding, and provides sufficient support and stability. At the same time, the weight of the fixing device 2 and the inclined abutment structure of the sliding plate 304 and the adjusting block 303, this structure uses the weight of the fixing device itself and the inclined setting of the sliding plate 304 and the adjusting block 303 to tightly lock the fixing device 2 and the first pipeline 101 together. This locking method is not only stable and reliable, but also can effectively disperse the stress and vibration generated during the welding process, protecting the pipeline and the welded joint from damage.
[0032] See Figure 1 、 Figure 2 , there are multiple groups of pre-limiting mechanisms 3, and they are arranged in an equidistant linear manner along the central axis of the fixing device 2, so that the fixing device 2 can effectively abut and fix the first pipe 101 at multiple points. The multiple groups of pre-limiting mechanisms 3 work together to distribute the fixing force more evenly, avoiding deformation or damage of the pipe caused by excessive force at a single point, thereby ensuring the stability and safety of the pipe during the welding process. At the same time, the equidistant linear arrangement method enables the fixing device 2 to form a uniform clamping force on the pipe as a whole, which not only ensures that each group of pre-limiting mechanisms 3 can fully exert its fixing role, but also makes the entire fixing device 2 more balanced when subjected to force, reducing the offset or shaking caused by uneven force.
[0033] See Figure 1 、 Figure 2 The contact surface between the sliding plate 304 and the adjusting block 303 is an inclined structure, and the material of the abutment block 305 is rubber. The inclined structure can provide a stable supporting surface, so that the sliding plate 304 slides obliquely when subjected to force. This stability ensures that the abutment block 305 can always be tightly abutted against the surface of the first pipe 101, thereby effectively limiting the movement of the fixing device, thereby forming a stable wedge-shaped locking effect. At the same time, the material of the abutment block 305 is rubber, which has good elasticity and wear resistance, and can effectively absorb the vibration and impact generated during the welding process, reducing damage to the pipe and the fixing device.
[0034] See Figure 1 、 Figure 2The adjusting hand wheel 306 is rotatably connected to the adjusting block 303 through a thrust bearing, and is threadedly connected to the mounting block 301, and is used to adjust the lateral position of the adjusting block 303, ensuring that the adjusting hand wheel 306 can smoothly drive the adjusting block 303 to move in the empty slot 302 when rotating without generating excessive friction resistance. The setting of the thrust bearing also effectively prevents the adjusting block 303 from generating unnecessary axial movement when subjected to force, thereby ensuring the accuracy and stability of the adjustment. At the same time, the adjusting hand wheel 306 is also threadedly connected to the mounting block 301. This connection method allows the operator to easily adjust the lateral position of the adjusting block 303 by twisting the adjusting hand wheel 306.
[0035] See Figure 1 、 Figure 2 The fixing device 2 includes a first fixing frame 201 and a second fixing frame 202. The first fixing frame 201 and the second fixing frame 202 are rotatably connected, and a limiting frame 203 is rotatably provided on one side of the second fixing frame 202, and a jacking device 204 is provided on the inner side of the limiting frame 203, so that the fixing device 2 has higher flexibility when adapting to pipes of different diameters or shapes. The operator can adjust the angle between the first fixing frame 201 and the second fixing frame 202 according to actual needs to ensure that the fixing device 2 can fit closely on the surface of the pipe and provide stable support and fixation. At the same time, a limiting frame 203 is rotatably provided on one side of the second fixing frame 202, and a jacking device 204 is provided on the inner side of the limiting frame 203, which not only enhances the clamping force of the fixing device 2 on the pipe, but also makes the entire fixing device 2 more balanced when subjected to force. Example 2:
[0036] See Figure 3 、 Figure 4 , a plurality of fixing blocks 205 are provided on the inner sides of the first fixing frame 201 and the second fixing frame 202, and two groups of abutting bolts 206 are threadedly connected to the fixing blocks 205, wherein two relatively fixing blocks 205 are provided with slots 4, and a plug-in plate 5 is provided inside the slots 4, and the plug-in plate 5 passes through the gap between the first pipe 101 and the second pipe 102, and the plug-in plate 5 is inserted into the slots 4 preset on the fixing blocks 205 and the gap between the first pipe 101 and the second pipe 102. The insertion of the plug-in plate 5 not only strengthens the connection stability between the fixing device 2 and the pipe, but also creates conditions for the subsequent limiting action, making the entire structure more reliable, and the fixing device 2 and the pipe are preliminarily fixed. This fixing method is not only easy to operate, but also significantly improves the welding efficiency.
[0037] See Figure 3 、 Figure 4, a limit plate 6 is rotatably provided on one side of the fixed block 205 and at a position opposite to the position of the plug plate 5, which is used to limit the position of the plug plate 5. The main function of the limit plate 6 is to limit the position of the plug plate 5 to ensure that it does not move or fall off during the welding process. After the plug plate 5 is inserted into the gap between the fixed block 205 and the pipe through the slot 4, the operator can rotate the limit plate 6 to make it in close contact with the plug plate 5, thereby achieving effective limitation of the plug plate 5 and improving the stability and reliability of the entire fixing device 2. Since the limit plate 6 can firmly lock the plug plate 5, the fixing device 2 can maintain a stable clamping of the pipe during the welding process and will not lose the fixing effect due to the movement of the plug plate 5.
[0038] The implementation principle of the present invention is as follows: when it is necessary to perform butt welding on the pipes, first, the first fixing frame 201 and the second fixing frame 202 are rotated so as to be sleeved on the outside of the pipe welding joint, and then the jacking device 204 is placed on the inner side of the limiting frame 203 and a preliminary jacking operation is performed on it. Then, the operator turns the adjusting hand wheel 306 and uses the threaded connection between the adjusting hand wheel 306 and the mounting block 301 to cause the adjusting block 303 to move in the empty groove 302, thereby adjusting the distance between the abutting block 305 and the first pipe 101 until the abutting block 305 abuts against the surface of the first pipe 101, and adjusts and installs multiple pre-limiting mechanisms 3 in sequence, and then, the abutting bolts 206 on the multiple fixing blocks 205 are screwed until the connection ports of the first pipe 101 and the second pipe 102 are relative to each other, which is convenient for subsequent welding operations;
[0039] During the above operation, the abutment block 305 in the pre-limiting mechanism 3 abuts against the surface of the first pipe 101, and the deadweight of the fixing device 2 and the inclined abutment structure of the sliding plate 304 and the adjusting block 303 are coordinated to form a wedge-shaped locking structure between the fixing device 2 and the first pipe 101, thereby achieving a preliminary fixation of the positions of the fixing device 2 and the first pipe 101, avoiding the operator's long-term support of the fixing device during the subsequent continuous adjustment of the fixing device 2, thereby reducing the output of labor costs and improving the convenience and efficiency of pipe butt welding;
[0040] A second solution to the problem is provided for this application, and a second embodiment is provided: according to the above principle, the fixing device 2 is first placed on the outside of the pipe by using the jacking device 204, and then the plug plate 5 is passed through the gap between the slot 4 opened on the corresponding fixing block 205 and the first pipe 101 and the second pipe 102. Then, the limit plate 6 is rotated to limit the position of the plug plate 5. According to the plug-in use of the plug plate 5, the fixing device 2 and the pipe are initially fixed, which can also achieve the problem raised in this application. After the outer side welding is completed, the plug plate 5 is pulled out and the fixing device 2 is removed. Then, further welding is performed on the pull-out position of the plug plate 5 to complete the welding operation of the first pipe 101 and the second pipe 102. In this embodiment, the thickness of the plug plate 5 should not affect the convenience of welding the first pipe 101 and the second pipe 102.
[0041] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.
[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A boiler pipe connection and fixing structure, characterized in that: The invention comprises a first pipe (101), a second pipe (102), and a fixing device (2); a pre-limiting mechanism (3) is provided on the top of the fixing device (2); the pre-limiting mechanism (3) comprises a mounting block (301); an adjusting block (303) is slidably provided on the inner side of the mounting block (301) through a slot (302); a sliding plate (304) is slidably provided on one side of the adjusting block (303) through a slot and a slider; an abutting block (305) is provided on one side of the sliding plate (304); and an adjusting hand wheel (306) is provided on the other side of the adjusting block (303).
2. The boiler pipe connection and fixing structure according to claim 1, characterized in that: The pre-limiting mechanisms (3) are provided in multiple groups and are arranged linearly and equidistantly along the central axis of the fixing device (2).
3. The boiler pipe connection and fixing structure according to claim 1, characterized in that: The contact surface between the sliding plate (304) and the regulating block (303) is an inclined surface structure, and the abutting block (305) is made of rubber.
4. The boiler pipe connection and fixing structure according to claim 1, characterized in that: The adjusting hand wheel (306) is rotatably connected to the adjusting block (303) via a thrust bearing and is threadedly connected to the mounting block (301) for adjusting the lateral position of the adjusting block (303).
5. The boiler pipe connection and fixing structure according to claim 1, characterized in that: The fixing device (2) comprises a first fixing frame (201) and a second fixing frame (202); the first fixing frame (201) and the second fixing frame (202) are rotatably connected, and a limiting frame (203) is rotatably provided on one side of the second fixing frame (202); a jacking device (204) is provided on the inner side of the limiting frame (203).
6. The boiler pipe connection and fixing structure according to claim 5, characterized in that: A plurality of fixing blocks (205) are provided on the inner sides of the first fixing frame (201) and the second fixing frame (202), and two sets of abutting bolts (206) are threadedly connected to the fixing blocks (205), two of which are opposite to each other and have slots (4) formed on the fixing blocks (205), and insert plates (5) are provided inside the slots (4), and the insert plates (5) pass through the gap between the first pipe (101) and the second pipe (102).
7. The boiler pipe connection and fixing structure according to claim 6, characterized in that: A limiting plate (6) is rotatably provided on one side of the fixed block (205) and at a position opposite to the inserting plate (5), for limiting the position of the inserting plate (5).