Position adjustment mechanism of heating device for spraying inner wall of pipeline

Abstract

The utility model discloses a position adjustment mechanism for a heating device for spraying the inner wall of a pipeline, comprising a base with a hollow cavity; the base is provided with two slide groove groups penetrating the front and rear sides thereof; each of the slide groove groups comprises two arc-shaped slide grooves, namely a first slide groove and a second slide groove; the two groups of slide grooves are symmetrical; a first slide rod and a second slide rod are respectively inserted into the first slide groove and the second slide groove, for fixing two pairs of the heating devices on the front and rear sides of the base; a slider is fixed in the middle of a pair of the first slide rods; a screw is inserted into the two sliders, for driving a pair of the first slide rods to close or open when the screw rod rotates. The utility model can conveniently and quickly adjust the posture of the heating device, adapt to different pipelines with a large diameter range, and has good applicability; and has a compact structure, convenient adjustment, small space occupation, and high operating efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal spraying of pipeline inner walls, and in particular relates to a position regulating mechanism of a heating device used for spraying of pipeline inner walls. Background Art

[0002] Regarding the pipe inner wall spraying device, that is, the heating equipment of the FBE spraying production line, due to the different places of use, the required pipes are of various types and diameters, which leads to the specifications of the induction heating coils also need to be changed according to the specifications of the steel pipes to achieve the most suitable heating effect. Therefore, it is necessary to customize induction coils of different diameters. In addition, when the production factory replaces different induction coils, the replacement time is long, the efficiency is low, and the production cost increases.

[0003] In the prior art, for example, Patent 1 "A hot melt epoxy powder coating mechanical equipment with an inverted suspended induction coil" and Patent 2 "Adjustable heating device" have announcement numbers CN217069369U and CN211989468U respectively. Patent 1 hinges one end of the heating device, and the other end adjusts the angle of the heating device by changing the length of the distance adjusting screw. The problem is that only one end is adjustable and cannot fully adapt to the inner diameters of pipes of different sizes, affecting the heating effect. Patent 2 sets multiple groups of long strip holes with central radiation on the arc plate, and each group of long strip holes corresponds to a heating device, and the heating device is fixed by plugging the bolt assembly into the long strip hole. The problem is that the number of bolt assemblies is large, and in order to adapt to different inner diameters of pipes, the operation workload of screwing the bolts is huge, which is time-consuming and labor-intensive, affecting efficiency. Summary of the invention

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a position adjustment mechanism for a heating device for spraying the inner wall of a pipeline. The purpose is to design an adjustment mechanism with a compact structure, convenient adjustment, small space occupation, and suitable for a larger range of pipeline diameters, so as to quickly and efficiently adjust the heating device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A position adjustment mechanism for a heating device for spraying the inner wall of a pipeline, comprising a base for hanging a plurality of heating devices; the base has a hollow cavity; the base is provided with two slide groove groups penetrating the front and rear sides thereof; each of the slide groove groups comprises two arc-shaped slide grooves, namely a first slide groove and a second slide groove; the two first slide grooves and the two second slide grooves are symmetrical with respect to the middle position of the base; a first slide rod and a second slide rod are respectively inserted into the first slide groove and the second slide groove, and both ends thereof extend out of the front and rear side walls of the base, the heating device is connected to the ends of the first slide rod and the second slide rod, and is used to hang one of the heating devices on the front and rear sides of the base respectively; a slider is fixed in the middle of a pair of the first slide rods; the two sliders are both located in the cavity, and screw holes with opposite spiral directions are respectively provided at the center thereof; a screw rod in a horizontal posture is inserted into the two screw holes, and is used to drive the pair of the first slide rods to close or open when the screw rod rotates; one end of the screw rod is provided with a screwing head for driving the screw rod to rotate by connecting a wrench.

[0007] As a further optimization, a group of mounting holes penetrating the front and rear sides of the base are provided in the middle position of the base, and the two heating devices are fixedly mounted on the front and rear sides of the middle position of the base through the mounting holes.

[0008] As a further optimization, the heating device is provided with two connecting holes corresponding to the first sliding rod and the second sliding rod, and the outer ends of the first sliding rod and the second sliding rod are respectively inserted into the two connecting holes; the ends of the first sliding rod and the second sliding rod are provided with external threads, and two locking nuts are screwed onto the external threads to detachably connect the heating device to the ends of the first sliding rod and the second sliding rod.

[0009] As a further optimization, a window opening corresponding to the position of the screwing head is opened on the side wall of the base.

[0010] As a further optimization, the screw rod is provided with the screwing heads at both ends; the two opposite side walls of the base are provided with the window openings; the screwing heads extend out of the base through the window openings.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The positions of the two sets of heating devices are adjusted by screws, which is quick and convenient, without frequent disassembly and assembly of bolts, and the workload is small.

[0013] (2) The main components are all located in the base, with a compact structure and small footprint.

[0014] (3) The position adjustment of the heating device is achieved through swinging, which can adapt to a wide range of changes in the diameter of the steel pipe and has a wide adaptability range.

[0015] (4) Tighten the locking nut to make the posture of the heating device more stable.

[0016] (5) Compared with the traditional mechanism, there is no need to disassemble the original induction heating coil, nor the matching water and circuit accessories, which reduces the work content, saves time, reduces the types of required induction heating coils, and has better adaptability.

[0017] In short, the device can adjust the posture of the heating device conveniently and quickly, adapt to different pipes with a large diameter range, and has good applicability; it also has a compact structure, is easy to adjust, occupies a small space, and has high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of steel pipes corresponding to three diameters of Example 1 of the utility model;

[0019] Figure 2 This is a schematic structural diagram of a base in Example 1 of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a heating device of Example 1 of the utility model being hung on a base;

[0021] Figure 4 for Figure 3 Left view of

[0022] Figure 5 This is a schematic diagram of the working principle of Example 1 of the utility model.

[0023] The correspondence between the technical features and the reference numerals in the figure is: a steel pipe 1 with a diameter of 3.6 meters; the center of a steel pipe with a diameter of 3.6 meters 11; a steel pipe 2 with a diameter of 4 meters; a steel pipe 3 with a diameter of 5 meters; the center of a steel pipe with a diameter of 5 meters 31; a screw 4; a screwing head 41; a heating device 5; a slider 6; a second slide rod 7; a base 8; a first slide groove 81; a second slide groove 82; a mounting hole 83; a window opening 84; and a first slide rod 9. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the preferred embodiments of the present invention, rather than all the embodiments. It should be understood by those skilled in the art that these implementation methods are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-5 ;

[0026] The utility model provides the following technical solution: a position adjustment mechanism of a heating device for spraying the inner wall of a pipeline, comprising a base 8 for hanging a plurality of heating devices 5; the base 8 has a hollow cavity; the base 8 is provided with two slide groove groups penetrating the front and rear sides thereof; each of the slide groove groups comprises two arc-shaped slide grooves, namely a first slide groove 81 and a second slide groove 82; the two first slide grooves 81 and the two second slide grooves 82 are both symmetrical with respect to the middle position of the base 8; a first slide rod 9 and a second slide rod 7 are respectively inserted into the first slide groove 81 and the second slide groove 82, and the two slide grooves ... The ends of the first slide bar 9 and the second slide bar 7 extend out of the front and rear side walls of the base 8, and the heating device 5 is connected to the ends of the first slide bar 9 and the second slide bar 7, so as to connect one of the heating devices 5 on the front and rear sides of the base 8 respectively; a slide bar 6 is fixed in the middle of a pair of the first slide bars 9; the two slide bars 6 are both located in the cavity, and screw holes with opposite spiral directions are respectively provided in the center thereof; a horizontal screw rod 4 is inserted into the two screw holes, so as to drive the pair of the first slide bars 9 to close or open when the screw rod 4 rotates; one end of the screw rod 4 is provided with a screwing head 41 for driving the screw 4 to rotate by connecting a wrench.

[0027] In order to clearly explain the working method of this embodiment, it is necessary to explain that: Figure 1 The diameters of the steel pipe 1, steel pipe 2 and steel pipe 3 shown are 5 meters, 4 meters and 3.6 meters respectively.

[0028] The working principle includes two front-to-back symmetrical heating devices 5 on the left side and two front-to-back symmetrical heating devices 5 on the right side, a total of four heating devices 5 are distributed along the arc of the inner wall of the heated pipe, and the inner wall of the pipe passing through is heated when the pipe rotates. When the inner diameter of the pipe changes, for example, when the steel pipe 3 is replaced with the steel pipe 1, by rotating the screw 4, first a pair of sliders 6 with opposite spiral directions open to each other, and the pair of sliders 6 drives a pair of first slide bars 9 to open to each other; at the same time, due to the limitation that the heating device 5 is a rigid body, the distance between the first slide bar 9 and the second slide bar 7 connected to the same heating device 5 remains unchanged. When a pair of first slide bars 9 open to each other, a pair of second slide bars 7 also slide along the second slide groove 82 and open to each other, so that the two groups of heating devices 5 that are symmetrical on the left and right swing symmetrically with the middle position of the base 8 as a reference. Figure 5It can be seen that the focus of the center line of the two groups of heating devices 5 moves upward, and when the focus is located at the center of the steel pipe 1, the position adjustment of the two groups of heating devices 5 is completed. Among them, the end of the first slide bar 9 is rotatably connected to the heating device 5, so that when the heating device 5 swings, the first slide bar 9 does not rotate, thereby ensuring that the axes of the two screw holes coincide, and the screw 4 is always inserted in the two screw holes. It can be seen that adjusting the position of the two groups of heating devices 5 by the screw 4 is quick and convenient, without frequent disassembly and assembly of bolts, and the workload is small, and the main components of the adjustment mechanism are all located in the base 8, with a compact structure and small space occupation. In addition, the position adjustment of the heating device 5 is achieved by swinging, and therefore, it can adapt to a wide range of changes in the diameter of the steel pipe, and the adaptability range is large.

[0029] In order to improve the heating efficiency, a group of mounting holes 83 penetrating the front and rear sides of the base 8 are provided in the middle position of the base 8, and the two heating devices 5 are fixedly mounted on the front and rear sides of the base 8 through the connecting bolt assemblies on the mounting holes 83. It can be seen that the group of heating devices 5 in the middle position is fixed and does not need to be adjusted, so as to avoid frequent disassembly and assembly of the bolt assembly, and its center line is vertically upward, and no matter how the diameter of the steel pipe changes, its center line always intersects with the center of the steel pipe.

[0030] The heating device 5 can be fixedly connected to the first slide bar 9 and the second slide bar 7, for example, by welding. However, for the convenience of maintenance, a detachable threaded connection is preferred. An exemplary threaded connection is that the heating device 5 is provided with two connection holes corresponding to the first slide bar 9 and the second slide bar 7, and the outer ends of the first slide bar 9 and the second slide bar 7 are respectively inserted into the two connection holes; the ends of the first slide bar 9 and the second slide bar 7 are both provided with external threads, and two locking nuts are screwed onto the external threads to detachably connect the heating device 5 to the ends of the first slide bar 9 and the second slide bar 7.

[0031] At this point, the key point is that the function of the locking nut is not only to be removable, but also to further make the first slide bar 9 and the second slide bar 7 more securely fixed to the base 8. When the locking nut is tightened, the clamping force of the locking nut forces the heating device 5 to be tightly pressed against the side of the base 8, and the friction force between the base 8 and the heating device 5 forces the posture of the heating device 5 to be more stable.

[0032] In order to facilitate the screwing operation of the screw rod 4, the side wall of the base 8 is provided with a window hole 84 corresponding to the position of the screwing head 41. More preferably, the screw rod 4 is provided with the screwing head 41 at both ends; the two opposite side walls of the base 8 are provided with the window hole 84; the screwing head 41 extends out of the base 8 through the window hole 84. Therefore, the screw rod 4 can be screwed from both sides of the base 8, which is more convenient.

[0033] When in use, first loosen the locking nuts on the two groups of heating devices 5 that are symmetrical on both sides to release the freedom of the two groups of heating devices 5. Then, use a wrench tool to rotate the screw rod 4 to drive a pair of sliders 6 to open, and the sliders 6 drive a pair of first slide bars 9 to open each other. With the cooperation of the second slide groove 82 and the second slide bar 7, the posture of the heating device 5 swings until the gap between the bottom of the heating device 5 and the inner wall of the heated steel pipe is uniform. It can be considered that the focus of the center line of the two groups of heating devices 5 is located at the center of the steel pipe and adjusted in place. At this time, due to the self-locking principle of the thread, it will not be affected by the gravity of the heating device 5. The position of the slider 6 on the screw rod 4 does not move, and the position adjustment has been completed. However, in order to better fix the posture of the heating device 5, screw the locking nut, and force the posture of the heating device 5 to be more stable through the friction between the base 8 and the heating device 5.

[0034] The advantages of this embodiment are as follows:

[0035] (1) The positions of the two sets of heating devices 5 are adjusted by the screw rod 4, which is quick and convenient, and there is no need to frequently disassemble and assemble the bolts, and the workload is small.

[0036] (2) The main components are all located in the base 8, with a compact structure and small space occupation.

[0037] (3) The position adjustment of the heating device 5 is achieved by swinging, which can adapt to a wide range of changes in the diameter of the steel pipe and has a wide adaptability range.

[0038] (4) Tighten the locking nut to make the posture of the heating device 5 more stable.

[0039] (5) Compared with the traditional mechanism, there is no need to disassemble the original induction heating coil, nor the matching water and circuit accessories, which reduces the work content, saves time, reduces the types of required induction heating coils, and has better adaptability.

[0040] In summary, the device can adjust the posture of the heating device 5 conveniently and quickly, adapt to different pipes with a large diameter range, and has good applicability; and has a compact structure, convenient adjustment, small space occupation, and high operating efficiency.

[0041] The parts not described in detail in this utility model are prior art; for ordinary technicians in this field, the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The scope of this utility model is defined by the attached claims and their equivalents.

Claims

1. A position adjustment mechanism for a heating device for spraying the inner wall of a pipeline, comprising a base (8) for hanging a plurality of heating devices (5); characterized in that: The base (8) has a hollow cavity; The base (8) is provided with two slide groove groups penetrating the front and rear sides thereof; each of the slide groove groups comprises two arc-shaped slide grooves, namely a first slide groove (81) and a second slide groove (82); the two first slide grooves (81) and the two second slide grooves (82) are both symmetrical with respect to the middle position of the base (8); The first slide bar (9) and the second slide bar (7) are respectively inserted into the first slide groove (81) and the second slide groove (82), and both ends thereof extend out of the front and rear side walls of the base (8); the heating device (5) is connected to the ends of the first slide bar (9) and the second slide bar (7), and is used to hang one heating device (5) on the front and rear sides of the base (8) respectively; A slider (6) is fixedly arranged in the middle of the pair of first slide bars (9); the two sliders (6) are both located in the cavity, and screw holes with opposite spiral directions are arranged in the centers thereof; a horizontal screw rod (4) is inserted into the two screw holes, and is used to drive the pair of first slide bars (9) to close or open when the screw rod (4) rotates; a screw head (41) is arranged at one end of the screw rod (4).

2. The position adjustment mechanism of the heating device for spraying the inner wall of a pipeline according to claim 1, characterized in that: A group of mounting holes (83) penetrating the front and rear sides of the base (8) are provided in the middle of the base (8), and the two heating devices (5) are fixedly mounted on the front and rear sides of the middle of the base (8) through the mounting holes (83).

3. The position adjustment mechanism of the heating device for spraying the inner wall of a pipeline according to claim 1, characterized in that: The heating device (5) is provided with two connection holes corresponding to the first slide bar (9) and the second slide bar (7), and the outer ends of the first slide bar (9) and the second slide bar (7) are respectively inserted into the two connection holes; the ends of the first slide bar (9) and the second slide bar (7) are both provided with external threads, and two locking nuts are screwed onto the external threads to detachably connect the heating device (5) to the ends of the first slide bar (9) and the second slide bar (7).

4. The position adjustment mechanism of the heating device for spraying the inner wall of a pipeline according to claim 1 is characterized in that: The side wall of the base (8) is provided with a window opening (84) corresponding to the position of the screwing head (41).

5. The position adjustment mechanism of the heating device for spraying the inner wall of a pipeline according to claim 4, characterized in that: The screw heads (41) are provided at both ends of the screw rod (4); the window openings (84) are provided on the two opposite side walls of the base (8); and the screw heads (41) extend out of the base (8) through the window openings (84).

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