Positioning device for central axis of linear steel pipeline

Abstract

The utility model provides a linear steel pipeline central axis positioning device which comprises a positioning pipe and a front end positioning plate which are respectively fixed at two ends of a pipeline, the front end positioning plate comprises an annular frame and a positioning plate arranged in the annular frame, the center of the positioning plate is provided with a center hole, the positioning pipe is cylindrical, and the positioning pipe is provided with a through hole. A fixing sleeve is fixedly connected to the interior of the positioning pipe, an annular swing frame is arranged in the fixing sleeve, a laser transmitter is fixed in the annular swing frame, and a first adjusting assembly and a second adjusting assembly which are used for adjusting the transmitting angle of the laser transmitter are arranged on one side of the annular swing frame. The device is simple in structure, can quickly test and position the central axis of the pipeline through laser, and is convenient to operate and good in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of central axis positioning device, especially to a straight line steel pipeline central axis positioning device. BACKGROUND

[0002] In the process of detecting or repairing the straight line steel pipeline, the central axis of the straight line steel pipeline needs to be positioned, and in the prior art, the position of the central axis is generally confirmed by manual naked-eye aiming during the maintenance process.

[0003] In the prior art, the method of confirming the position of the central axis by manual naked-eye aiming not only leads to inaccurate measurement of the position of the central axis, but also consumes more time, thereby reducing the work efficiency of the maintenance. SUMMARY

[0004] In view of the above problems of the prior art, the utility model provides a straight line steel pipeline central axis positioning device, which mainly solves the technical problem of measuring the position of the central axis of the straight line steel pipeline by laser aiming instead of manual aiming.

[0005] The utility model provides a technical scheme: a straight line steel pipeline central axis positioning device, which comprises positioning pipes and front end positioning plates fixed at two ends of a pipeline respectively, the front end positioning plate comprises an annular frame and a positioning plate arranged in the annular frame, a center hole is arranged in the center of the positioning plate, the positioning pipe is cylindrical, a fixing sleeve is fixedly connected to the inside of the positioning pipe, an annular swing frame is arranged in the inside of the fixing sleeve, a laser emitter is mounted in the inside of the annular swing frame, a first adjusting assembly and a second adjusting assembly for adjusting the emission angle of the laser emitter are arranged on one side of the annular swing frame.

[0006] Further, the annular swing frame comprises an annular frame connected with the fixing sleeve, a rotating ring one is rotatably connected to the inside of the annular frame, a rotating ring two is rotatably connected to the inside of the rotating ring one, the first adjusting assembly is arranged on the outside of the rotating ring one, the second adjusting assembly is arranged on the outside of the rotating ring two, and the first adjusting assembly and the second adjusting assembly are on two straight lines perpendicular to each other with the center of the annular swing frame as the center.

[0007] Further, the other side of the rotating ring one and the rotating ring two on the same straight line as the first adjusting assembly is connected through a pin shaft one, and the other side of the annular frame and the rotating ring one on the same straight line as the second adjusting assembly is connected through a pin shaft two.

[0008] Further, the first adjusting assembly and the second adjusting assembly each comprise a lead screw threadedly connected with the corresponding rotating ring, a knob is fixedly connected to the outside of the lead screw, a connecting rod is movably connected to the other end of the outer wall of the lead screw, and the other end of the connecting rod is connected to the inside rotating ring.

[0009] Further, the annular frame is fixedly connected to the inner wall of the fixed sleeve, and the fixed sleeve is connected to the inner wall of the positioning pipe through the fixing plate arranged circumferentially around the fixed sleeve and away from the adjusting assembly.

[0010] Further, the laser emitter is fixed inside the second rotary joint.

[0011] Further, the inner walls of the positioning pipe and the annular frame are both provided with a plurality of spring support structures for clamping the positioning pipe or the annular frame at both ends of the pipe.

[0012] Further, the spring support structure comprises a steel ball and a spring, the lower end of the steel ball is fixedly connected to a limiting shaft, one end of the spring is fixed inside the positioning pipe or the annular frame, and the other end of the spring is fixedly connected to the inside of the limiting shaft.

[0013] Further, the spring support structure is uniformly provided with three groups along the two sides of the positioning pipe and the inner wall of the annular frame, respectively.

[0014] The utility model has at least the following beneficial effects:

[0015] (1) Compared with the prior art, the utility model emits laser through the laser emitter, moves the corresponding lead screw by rotating the knobs of the two adjusting assemblies respectively, then pulls the corresponding connecting rods respectively, drives the rotary joint to rotate, realizes the pitch angle adjustment or the left-right angle adjustment of the laser emitter respectively, and makes the laser pass through the center hole of the front positioning plate, at this time, the position of the laser line is the position of the central axis of the pipe.

[0016] (2) Compared with the prior art, the utility model fixes the positioning pipe and the front positioning plate at both ends inside the straight steel pipe respectively, and when the positioning pipe or the front positioning plate is installed, a plurality of steel balls inside the positioning pipe or the front positioning plate are ejected and clamped to the inner wall of the pipe for positioning, so that the positioning pipe and the front positioning plate are positioned and installed inside the pipe, which is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structural drawing of the utility model;

[0018] Figure 2 It is the positioning pipe structure drawing of the utility model;

[0019] Figure 3 It is the internal structure drawing of the fixed sleeve of the utility model;

[0020] Figure 4 It is the annular swing frame structure schematic view of the utility model

[0021] Figure 5The front end positioning plate structure diagram of the utility model;

[0022] Figure 6 The inner wall section view of the positioning pipe of the utility model;

[0023] In the drawing: 1-positioning pipe, 2-front end positioning plate, 201-ring frame, 202-positioning plate, 203-center hole, 3-fixed sleeve, 4-ring swing frame, 401-ring frame, 402-rotary ring one, 403-rotary ring two, 404-pivot one, 405-pivot two, 5-laser emitter, 6-first adjusting assembly, 601-screw rod, 602-knob, 603-connecting rod, 7-second adjusting assembly, 8-fixed plate, 9-spring support structure, 901-steel ball, 902-spring, 903-limiting shaft. DETAILED DESCRIPTION

[0024] The utility model will be further explained in connection with specific implementation, wherein, the drawing is only used for example explanation, and the representation is only schematic diagram, and not the real object drawing, and can not be understood as the limitation of the utility model, in order to better explain the specific embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and not represent the size of actual product, for the technical personnel in the art, some known structure and its explanation in the drawing can be omitted, and all other specific embodiments obtained by the ordinary skill in the art without making creative labor based on the specific embodiment in the utility model, belong to the range of protection of the utility model.

[0025] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms 'front', 'back', 'upper', 'lower' and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model.

[0026] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, the terms'mounting', 'provided with', 'connection' and the like should be broadly understood, for example, 'connection' can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] As Figures 1-6The utility model provides an axis positioning device of straight steel pipeline, including the positioning pipe 1 and the front end positioning plate 2 fixed at the both ends of pipeline respectively, the front end positioning plate 2 includes annular frame 201 and sets up the positioning plate 202 in annular frame 201, the center of positioning plate 202 is provided with center hole 203, the positioning pipe 1 is cylindrical, and the inside fixed connection of positioning pipe 1 has fixed sleeve 3, the inside of fixed sleeve 3 is provided with annular swing frame 4, the inside of annular swing frame 4 is installed with laser emitter 5, and one side of annular swing frame 4 is provided with first adjusting assembly 6 and second adjusting assembly 7 for adjusting the emission angle of laser emitter.

[0028] The annular swing frame 4 includes the annular frame 401 connected with the fixed sleeve 3, the inside of the annular frame 401 is rotatably connected with the rotating ring one 402, the inside of the rotating ring one 402 is rotatably connected with the rotating ring two 403, the first adjusting assembly 6 is arranged on the outside of the rotating ring one 402, and the second adjusting assembly 7 is arranged on the outside of the rotating ring two 403, and the first adjusting assembly 6 and the second adjusting assembly 7 are on two straight lines perpendicular to each other with the center of the annular swing frame 4 as the center.The other side of the rotating ring one 402 and the rotating ring two 403 on the same straight line as the first adjusting assembly 6 is connected through the pin shaft one 404, and the other side of the annular frame 401 and the rotating ring one 402 on the same straight line as the second adjusting assembly 7 is connected through the pin shaft two 405.The first adjusting assembly 6 and the second adjusting assembly 7 all include the lead screw 601 threadedly connected with the corresponding rotating ring, the outside of the lead screw 601 is fixedly connected with the knob 602, the other end of the lead screw 601 is movably connected with the connecting rod 603, and the other end of the connecting rod 603 is connected to the inside rotating ring two.By rotating the knobs 602 of the two adjusting assemblies respectively, the corresponding lead screws 601 are driven to move, and then the corresponding connecting rods 603 are pulled to drive the rotating rings to rotate, and the pitch angle adjustment or the left-right angle adjustment of the laser emitter is realized respectively

[0029] The annular frame 401 is fixedly connected to the inner wall of the fixed sleeve 3, and the side, away from the adjusting assembly, of the fixed sleeve 3 is connected to the inner wall of the positioning pipe 1 through the fixed plate 8 arranged circumferentially around the fixed sleeve.The laser emitter 5 is fixed to the inside of the rotating ring two 403.

[0030] The positioning pipe 1 and the inner wall of the annular frame 201 are provided with a plurality of spring support structures 9 for clamping the positioning pipe 1 or the annular frame 201 at both ends of the pipeline. The spring support structure 9 comprises a steel ball 901 and a spring 902, the lower end of the steel ball 901 is fixedly connected with a limiting shaft 903, one end of the spring 902 is fixed in the positioning pipe 1 or the annular frame 201, and the other end of the spring 902 is fixedly connected in the limiting shaft 903. Specifically, the spring support structure 9 is uniformly provided with three groups along the two sides of the positioning pipe 1 and the inner wall of the annular frame 201 respectively. A plurality of springs are used to support a plurality of limiting shafts 903 and steel balls 901 respectively, so that the steel ball 901 can be pushed outwards to install the positioning pipe 1 or the front positioning plate 2 in the pipeline.

[0031] When the utility model is used, first, the positioning pipe 1 and the front positioning plate 2 are positioned and installed at both ends in the straight steel pipeline, during the installation of the positioning pipe 1 and the front positioning plate 2, the steel ball 901 in the positioning pipe 1 or the front positioning plate 2 is pushed out by the spring 902, so that the positioning pipe 1 and the front positioning plate 2 can be positioned and installed in the pipeline, the laser emitter 5 is started to emit laser, the central axis of the straight steel pipeline is positioned, when the position of the laser emitted by the laser emitter 5 needs to be adjusted, the knobs 602 of the two sets of adjusting assemblies are rotated respectively to drive the lead screws 601 to move, the lead screws 601 are pulled to pull the connecting rods 603, the connecting rods 603 are pulled to drive the corresponding rotating rings to rotate, so that the pitch or the left-right angle of the laser emitter 12 is adjusted respectively, the laser passes through the center hole of the front positioning plate 2, at this time, the position of the laser line is the position of the central axis of the pipeline, and the central axis positioning effect of the straight steel pipeline is realized.

[0032] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the utility model and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A centerline positioning device for a straight steel pipe, characterized in that: The device includes a positioning tube (1) and a front positioning plate (2) fixed at both ends of the pipe. The front positioning plate (2) includes an annular frame (201) and a positioning plate (202) set inside the annular frame (201). The positioning plate (202) has a central hole (203) at its center. The positioning tube (1) is cylindrical. A fixing sleeve (3) is fixedly connected inside the positioning tube (1). An annular swing frame (4) is set inside the fixing sleeve (3). A laser emitter (5) is installed inside the annular swing frame (4). A first adjustment component (6) and a second adjustment component (7) for adjusting the emission angle of the laser emitter are set on one side of the annular swing frame (4).

2. The centerline positioning device for a straight steel pipe according to claim 1, characterized in that: The annular swing frame (4) includes an annular frame (401) connected to the fixed sleeve (3). A rotating ring (402) is rotatably connected inside the annular frame (401). A rotating ring (403) is rotatably connected inside the rotating ring (402). A first adjusting component (6) is disposed outside the rotating ring (402). A second adjusting component (7) is disposed outside the rotating ring (403). The first adjusting component (6) and the second adjusting component (7) are located on two straight lines perpendicular to each other with the center of the annular swing frame (4) as the center.

3. The centerline positioning device for a straight steel pipe according to claim 2, characterized in that: The other side of the rotating ring 1 (402) and rotating ring 2 (403) which are on the same straight line as the first adjustment component (6) are connected by pin 1 (404), and the other side of the ring frame (401) and rotating ring 1 (402) which are on the same straight line as the second adjustment component (7) are connected by pin 2 (405).

4. The centerline positioning device for a straight steel pipe according to claim 2, characterized in that: The first adjustment component (6) and the second adjustment component (7) both include a lead screw (601) threadedly connected to the corresponding swivel. A knob (602) is fixedly connected to the outside of the lead screw (601). A connecting rod (603) is movably connected to the outer wall of the other end of the lead screw (601). The other end of the connecting rod (603) is connected to the inner swivel.

5. The centerline positioning device for a straight steel pipe according to claim 2, characterized in that: The ring frame (401) is fixedly connected to the inner wall of the fixed sleeve (3). The side of the fixed sleeve (3) away from the adjustment component is connected to the inner wall of the positioning tube (1) through a fixed plate (8) arranged around the circumference of the fixed sleeve.

6. The centerline positioning device for a straight steel pipe according to claim 2, characterized in that: The laser emitter (5) is fixed inside the rotating ring (403).

7. The centerline positioning device for a straight steel pipe according to claim 1, characterized in that: The inner walls of the positioning tube (1) and the annular frame (201) are provided with multiple spring support structures (9) for securing the positioning tube (1) or the annular frame (201) to both ends of the pipe.

8. The centerline positioning device for a straight steel pipe according to claim 7, characterized in that: The spring support structure (9) includes a steel ball (901) and a spring (902). The lower end of the steel ball (901) is fixedly connected to a limiting shaft (903). One end of the spring (902) is fixed inside the positioning tube (1) or the annular frame (201), and the other end of the spring (902) is fixedly connected inside the limiting shaft (903).

9. A centerline positioning device for a straight steel pipe according to claim 8, characterized in that: The spring support structure (9) is evenly arranged in three sets along both sides of the positioning tube (1) and the inner wall of the annular frame (201).

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