Inspection device for inner wall of pressure pipeline

Abstract

The utility model discloses a pressure pipeline inner wall inspection device which comprises a bottom plate, the top of the bottom plate is fixedly connected with two arc-shaped supports used for supporting a pressure pipeline, and the top of each arc-shaped support is arranged to be of a concave arc-shaped structure and is fixedly bonded with an arc-shaped rubber mat; a lifting vertical guide assembly is fixedly connected to the left side of the top of the bottom plate, a multi-stage electric telescopic rod is fixedly embedded in the right side of the lifting vertical guide assembly, a U-shaped moving seat is fixedly connected to the extending end of the multi-stage electric telescopic rod, and a transverse guide plate in sliding connection with the lifting vertical guide assembly is fixedly connected to the top of the U-shaped moving seat. By arranging a series of structures, pressure control inspection on the inner wall of the pressure pipeline can be automatically and accurately carried out, the detection accuracy and convenience are improved, the detection height can be adjusted according to the center height of the pressure pipelines of different specifications, the detection diameter can be expanded and adjusted in cooperation with the four pressure sensors, and the detection efficiency is improved. The device is suitable for detecting the inner walls of pressure pipelines of various specifications, and the applicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure pipeline inner wall inspection technical field, concretely is a pressure pipeline inner wall inspection device. BACKGROUND

[0002] Pressure pipeline needs to carry out detection to the pressure bearing capacity of its inner wall after production and processing end, so as to know whether the pressure pipeline processing is qualified, for the pressure bearing detection device of pressure pipeline, the present is mostly for extrusion detection to outside, and there is lack of effective and accurate detection means to pipeline inner wall, usually by personnel simple through the inner support extrusion detection work of support clamp, and then judges whether the inner wall is recessed or the outside is convex, there is the following shortage in use:

[0003] 1, it is difficult to accurately and automatically control pressure inspection to pressure pipeline inner wall, and the detection precision is not ideal, 2, it is inconvenient to detect the inner wall of pressure pipeline of various specifications, and the applicability is not ideal, in view of this, the pressure pipeline inner wall inspection device is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a pressure pipeline inner wall inspection device, which can solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a pressure pipeline inner wall inspection device, including the bottom plate, the top of the bottom plate is fixedly connected with two arc supports for supporting pressure pipeline, the top of arc support is set to concave arc structure and is adhesively fixed with arc rubber pad;

[0006] The top left side of the bottom plate is fixedly connected with the lifting vertical guide assembly, the right side of the lifting vertical guide assembly is embeddedly fixed with the multistage electric telescopic rod, and the extension end of the multistage electric telescopic rod is fixedly connected with the U-shaped moving seat, and the top of the U-shaped moving seat is fixedly connected with the transverse guide plate slidably connected with the lifting vertical guide assembly;The lifting vertical guide assembly is used for adjusting the lifting of the multistage electric telescopic rod according to the center height of pressure pipeline of different specifications;

[0007] The right side of the U-shaped moving base is fixedly connected with a circular shell, the top, bottom, front side and rear side of the circular shell are provided with pressure control bracing inspection assemblies for bracing the inner wall of the pressure pipeline, two inner walls of the circular shell are provided with a linkage push-pull assembly for synchronously driving the four pressure control bracing inspection assemblies to expand or contract, the left side of the circular shell is fixedly provided with a driving motor with an output shaft fixedly connected with the linkage push-pull assembly, the front side of the driving motor is fixedly and electrically connected with a PLC controller, and the four pressure control bracing inspection assemblies are electrically connected with the PLC controller.

[0008] Preferably, the lifting vertical guide assembly comprises two rectangular guide rods fixedly connected to the top left side of the bottom plate, a same U-shaped seat is slidably sleeved on the two rectangular guide rods, a multistage electric push rod with an extending end fixedly connected to the top inner wall of the U-shaped seat is fixedly installed on the top left side of the bottom plate, the multistage electric push rod is embeddedly fixed to the right side of the U-shaped seat, and the U-shaped seat is slidably sleeved on the horizontal guide plate.

[0009] Preferably, the pressure control bracing inspection assembly comprises a moving rod, the circular shell is located between the four moving rods, two guide columns are fixedly connected to the side of the moving rod close to the circular shell, the circular shell is slidably sleeved on the eight guide columns, and a pressure sensor is embeddedly fixed to the side of the moving rod away from the circular shell, and the four pressure sensors are electrically connected with the PLC controller.

[0010] Preferably, the linkage push-pull assembly comprises two horizontal guide rods fixedly connected between the two inner walls of the circular shell, a same moving disc is slidably sleeved on the two horizontal guide rods, inclined connecting rods are hingedly connected to the top, bottom, front side and rear side of the moving disc, the opposite two connecting rods are symmetrically arranged, the side of the moving rod close to the circular shell is hingedly connected to the end of the corresponding connecting rod away from the moving disc, a screw rod is rotatably installed on the right inner wall of the circular shell, the left end of the screw rod is fixedly connected with the output shaft of the driving motor, and the moving disc is threadedly sleeved on the screw rod.

[0011] Preferably, the front side of the driving motor is fixedly and electrically connected with a wireless remote control switch, and the wireless remote control switch is matched with an external remote controller.

[0012] Preferably, a threaded hole in thread connection with the screw rod is formed in the right side of the moving disc.

[0013] Preferably, the top, bottom, front side and rear side of the circular shell are provided with rectangular perforations, and the connecting rods are located in the corresponding rectangular perforations and are not in contact with the inner walls of the rectangular perforations.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The multi-stage electric telescopic rod, the U-shaped moving seat, the horizontal guide plate, the circular shell, the driving motor, the PLC controller, the pressure control and stretching inspection assembly and the linked driving and pulling assembly are matched, the inner wall of the pressure pipeline can be inspected in the four-point expansion and stretching mode, the extrusion force can be detected during the detection, and the detection is automatically stopped when the pressure value reaches the preset value, the effect of automatically and accurately controlling and inspecting the inner wall of the pressure pipeline is realized, and the detection accuracy and convenience are improved.

[0016] 2. The lifting vertical guide assembly and the electric telescopic rod are matched, the detection height can be adjusted according to the center height of pressure pipelines of different specifications, the four pressure sensors can be matched to expand and adjust the detection diameter, the inner wall of pressure pipelines of various specifications can be conveniently detected, and the applicability is improved.

[0017] The utility model discloses a series of structures are set up, and the inner wall of the pressure pipeline is automatically and accurately controlled and inspected, the detection accuracy and convenience are improved, the detection height can be adjusted according to the center height of pressure pipelines of different specifications, the four pressure sensors can be matched to expand and adjust the detection diameter, the inner wall of pressure pipelines of various specifications can be conveniently detected, and the applicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a pressure pipeline inner wall inspection device's structural schematic diagram is provided;

[0019] Figure 2 The utility model discloses a pressure pipeline inner wall inspection device's main view cross section structure schematic diagram is provided;

[0020] Figure 3 The utility model discloses a pressure pipeline inner wall inspection device's main view cross section structure schematic diagram is provided; Figure 2 The utility model discloses a pressure pipeline inner wall inspection device's main view cross section structure schematic diagram is provided;

[0021] In the figure: 1, bottom plate;101, arc support;102, arc rubber pad;2, multi-stage electric push rod;201, rectangular guide rod;202, U-shaped seat;3, multi-stage electric telescopic rod;301, U-shaped moving seat;302, horizontal guide plate;4, circular shell;5, moving rod;501, pressure sensor;502, guide column;6, horizontal guide rod;601, moving disc;602, connecting rod;603, screw;604, driving motor;605, PLC controller. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] As shown in Figures 1 to 3 The utility model discloses a pressure pipeline inner wall inspection device, including the bottom plate 1, the top of bottom plate 1 is fixedly connected with two arc-shaped support 101 for supporting pressure pipeline, the top of arc-shaped support 101 is set to concave arc structure and is bonded with arc-shaped rubber pad 102;

[0024] The top left side of bottom plate 1 is fixedly connected with lifting vertical guide assembly, and the right side of lifting vertical guide assembly is embeddedly fixed with multi-stage electric telescopic rod 3, and the extension end of multi-stage electric telescopic rod 3 is fixedly connected with U-shaped moving seat 301, and the top of U-shaped moving seat 301 is fixedly connected with horizontal guide plate 302 slidably connected with lifting vertical guide assembly;Lifting vertical guide assembly is used for lifting adjustment of multi-stage electric telescopic rod 3 according to the center height of pressure pipeline of different specifications;

[0025] The right side of U-shaped moving seat 301 is fixedly connected with round shell 4, and the top, bottom, front side and rear side of round shell 4 are all installed with pressure control bracing inspection assembly for bracing pressure control of pressure pipeline inner wall, and the inner wall between the two sides of round shell 4 is installed with linkage driving push-pull assembly for synchronously driving four pressure control bracing inspection assemblies to expand or contract, and the left side of round shell 4 is fixedly installed with driving motor 604, and the front side of driving motor 604 is fixedly connected with PLC controller 605, and four pressure control bracing inspection assemblies are electrically connected with PLC controller 605, and the front side of driving motor 604 is fixedly connected with wireless remote control switch, and wireless remote control switch is matched with external remote controller;Linkage driving push-pull assembly is used for driving four pressure control bracing inspection assemblies to move outwardly and expand or contract inwardly synchronously when driving motor 604 starts, and four pressure control bracing inspection assemblies are used for bracing pressure and detecting extrusion force when moving outwardly and expanding, and the detected extrusion force is transmitted to PLC controller 605, and the setting PLC controller 605 is used for controlling driving motor 604 to automatically close when the pressure value reaches preset inspection value, and realizes accurate pressure control inspection pressure of pressure pipeline inner wall.

[0026] Specifically, the lifting vertical guide assembly comprises two rectangular guide rods 201 fixedly connected to the top left side of the bottom plate 1, and a same U-shaped seat 202 is slidingly sleeved on the two rectangular guide rods 201, wherein the bottom two sides of the U-shaped seat 202 are provided with rectangular guide grooves, the inner walls of the rectangular guide grooves are slidingly sleeved with the outer sides of the corresponding rectangular guide rods 201, and the right inner wall of the right rectangular guide groove is provided with a limiting hole, the right side of the right rectangular guide rod 201 is fixedly connected with a limiting block slidingly connected with the limiting hole, the limiting block is used for limiting and preventing the U-shaped seat 202 from being disengaged, a multistage electric push rod 2 is fixedly installed at the top left side of the bottom plate 1, the extending end of the multistage electric push rod 2 is fixedly connected with the top inner wall of the U-shaped seat 202, and a multistage electric telescopic rod 3 is embeddedly fixed at the right side of the U-shaped seat 202; the U-shaped seat 202 is slidingly sleeved on the horizontal guide plate 302, wherein the right side of the U-shaped seat 202 is provided with a rectangular guide hole slidingly sleeved with the outer side of the horizontal guide plate 302, and the rectangular guide hole has the effect of guiding the horizontal sliding of the horizontal guide plate 302; the rectangular guide rod 201, the U-shaped seat 202 and the multistage electric push rod 2 are matched, the multistage electric push rod 2 is used for driving the U-shaped seat 202 to move up and down, and the multistage electric telescopic rod 3 is driven to move up and down by the U-shaped seat 202, so as to perform lifting adjustment work.

[0027] Further, the pressure control and support inspection assembly comprises four moving rods 5, and the circular shell 4 is located between the four moving rods 5; the two guide columns 502 are fixedly connected to the side close to the circular shell 4 of the moving rod 5; the circular shell 4 is slidingly sleeved on the eight guide columns 502, wherein the top, bottom, front side and rear side of the circular shell 4 are provided with two guide grooves respectively slidingly sleeved with the outer sides of the corresponding guide columns 502, so as to guide the guide columns 502; the pressure sensor 501 is embeddedly fixed to the side away from the circular shell 4 of the moving rod 5, and the four pressure sensors 501 are electrically connected with the PLC controller 605; the moving rod 5, the pressure sensor 501 and the guide column 502 are matched, and when the four moving rods 5 are outwardly expanded, the four pressure sensors 501 are driven to outwardly extrude and inspect the inner wall of the pressure pipeline; the pressure sensor 501 detects the extrusion force and transmits the pressure value to the PLC controller 605, so that the PLC controller 605 controls the driving motor 604 to automatically close according to the preset requirement detection pressure value.

[0028] Further, the combined driving and pushing assembly comprises two horizontal guide rods 6 fixedly connected between the inner walls on the two sides of the circular shell 4, and the same moving disc 601 is slidably sleeved on the two horizontal guide rods 6, wherein the right side of the moving disc 601 is provided with two horizontal guide holes respectively slidably sleeved with the outer sides of the corresponding horizontal guide rods 6, so as to achieve the effect of guiding the horizontal sliding of the moving disc 601, and the top, bottom, front side and rear side of the moving disc 601 are all hingedly connected with the inclined connecting rods 602, the opposite two connecting rods 602 are symmetrically arranged, the side of the moving rod 5 close to the circular shell 4 is hingedly connected with the end of the corresponding connecting rod 602 away from the moving disc 601, the top, bottom, front side and rear side of the circular shell 4 are all provided with rectangular through holes, the connecting rod 602 is located in the corresponding rectangular through hole and does not contact with the inner wall of the rectangular through hole, so as to achieve the effect of passing through the connecting rod 602, the right inner wall of the circular shell 4 is rotatably provided with a screw rod 603, wherein the right inner wall of the circular shell 4 is fixedly connected with a bearing, the inner ring of the bearing is fixedly sleeved with the outer side of the screw rod 603, so as to achieve the effect of rotatably installing the screw rod 603, the left end of the screw rod 603 is fixedly connected with the right end of the output shaft of a driving motor 604, and the moving disc 601 is threadedly sleeved on the screw rod 603, wherein the right side of the moving disc 601 is provided with a threaded hole threadedly connected with the screw rod 603, and the threaded connection between the screw rod 603 and the threaded hole is used to achieve the effect of conveniently driving the moving disc 601 to move left and right when the screw rod 603 rotates; the horizontal guide rod 6, the moving disc 601, the connecting rod 602 and the screw rod 603 are matched, the driving motor 604 is used to drive the screw rod 603 to rotate, the screw rod 603 drives the moving disc 601 to move left or right, when the moving disc 601 moves left, the four connecting rods 602 are squeezed to drive the four moving rods 5 to synchronously move outward and expand, and when the moving disc 601 moves right, the four connecting rods 602 are pulled to drive the four moving rods 5 to move inward and contract.

[0029] The use method of the embodiment is as follows: the pressure pipeline to be detected is placed inside the two arc-shaped rubber pads 102, then the height of the multi-stage electric telescopic rod 3 is adjusted according to the center height of the pressure pipeline of different specifications, when adjusting, the multi-stage electric push rod 2 is started to drive the U-shaped seat 202 to slide upward or downward on the two rectangular guide rods 201, the U-shaped seat 202 drives the multi-stage electric telescopic rod 3 to move up and down, and the lifting adjustment work is performed, after adjustment, the multi-stage electric telescopic rod 3 is started in the forward direction to drive the U-shaped moving seat 301 to move rightwards, the U-shaped moving seat 301 drives the circular outer shell 4 to extend rightwards into the pressure pipeline, the closing pressure value of the driving motor 604 is pre-set by the PLC controller 605 according to the pressure-bearing test requirement, the driving motor 604 is started in the forward direction to drive the screw rod 603 to rotate, the screw rod 603 drives the moving disc 601 to slide leftwards on the two horizontal guide rods 6, when the moving disc 601 moves leftwards, the four connecting rods 602 are squeezed to drive the four moving rods 5 to move outward and expand synchronously, the moving rods 5 drive the corresponding two guide columns 502 to slide in the circular outer shell 4, when the four moving rods 5 move outward and expand, the four pressure sensors 501 move outward and expand synchronously, the four pressure sensors 501 press outwardly against the inner wall of the pressure pipeline, detect the pressing force, and transmit the pressure value to the PLC controller 605, when the preset pressure value is reached, the PLC controller 605 controls the driving motor 604 to be automatically closed, in the way that the pressure value is detected by automatic outward expansion and the detection is automatically stopped when the preset value is reached, the effect of automatic and accurate pressure control test on the inner wall of the pressure pipeline is achieved, and the detection accuracy and convenience are improved; in addition, in the way that the four pressure sensors 501 are expanded and adjusted to detect the diameter, the detection of the inner wall of the pressure pipeline of various specifications is facilitated, and the applicability is improved.

[0030] After detection, the driving motor 604 is started in the reverse direction, which is completely opposite to the movement direction of the driving motor 604 started in the forward direction, at this time, the moving disc 601 changes to move rightwards, and the four connecting rods 602 are pulled to drive the four moving rods 5 to shrink inward, the four moving rods 5 drive the four pressure sensors 501 to shrink inward, the state of supporting and detecting the inner wall of the pressure pipeline is released, then the multi-stage electric telescopic rod 3 is started in the reverse direction to drive the circular outer shell 4 to move out, and whether the inner wall of the pressure pipeline is concave and the outer side is convex can be judged to determine whether the test is qualified.

[0031] Finally, it should be noted that the above only describes the preferred embodiments of the utility model and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified or some technical features can be replaced by equivalents for the person skilled in the art. 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 pressure pipeline inner wall inspection device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to two arc-shaped supports (101) for supporting the pressure pipeline. The top of the arc-shaped supports (101) is set as a concave arc structure and an arc-shaped rubber pad (102) is glued and fixed. A lifting vertical guide assembly is fixedly connected to the top left side of the base plate (1). A multi-stage electric telescopic rod (3) is embedded and fixed to the right side of the lifting vertical guide assembly. A U-shaped moving seat (301) is fixedly connected to the extended end of the multi-stage electric telescopic rod (3). A horizontal guide plate (302) that is slidably connected to the top of the U-shaped moving seat (301) is fixedly connected to the top of the lifting vertical guide assembly. A circular shell (4) is fixedly connected to the right side of the U-shaped movable seat (301). The top, bottom, front and rear sides of the circular shell (4) are equipped with pressure control strut testing components for controlling the pressure struts on the inner wall of the pressure pipeline. A drive push-pull assembly for synchronously driving the expansion or contraction of the four pressure control strut testing components is installed between the inner walls of the two sides of the circular shell (4). A drive motor (604) with an output shaft fixedly connected to the drive push-pull assembly is fixedly installed on the left side of the circular shell (4). A PLC controller (605) is fixedly and electrically connected to the front side of the drive motor (604). All four pressure control strut testing components are electrically connected to the PLC controller (605).

2. The pressure pipeline inner wall inspection device according to claim 1, characterized in that: The lifting vertical guide assembly includes two rectangular guide rods (201) fixedly connected to the top left side of the base plate (1). The same U-shaped seat (202) is slidably sleeved on the two rectangular guide rods (201). A multi-stage electric push rod (2) with its extended end fixedly connected to the top inner wall of the U-shaped seat (202) is fixedly installed on the top left side of the base plate (1). A multi-stage electric telescopic rod (3) is embedded and fixed on the right side of the U-shaped seat (202). The U-shaped seat (202) is slidably sleeved on the horizontal guide plate (302).

3. The pressure pipeline inner wall inspection device according to claim 1, characterized in that: The pressure-controlled tensioning test assembly includes a moving rod (5), and the circular shell (4) is located between the four moving rods (5). Two guide posts (502) are fixedly connected to the side of the moving rod (5) near the circular shell (4). The circular shell (4) is slidably sleeved on the eight guide posts (502). A pressure sensor (501) is embedded and fixed on the side of the moving rod (5) away from the circular shell (4). All four pressure sensors (501) are electrically connected to the PLC controller (605).

4. The pressure pipeline inner wall inspection device according to claim 3, characterized in that: The drive push-pull assembly includes two horizontal guide rods (6) fixedly connected between the inner walls of the two sides of the circular outer shell (4). The same movable disk (601) is slidably sleeved on the two horizontal guide rods (6). The top, bottom, front and rear sides of the movable disk (601) are all hinged with inclined connecting rods (602). The two connecting rods (602) are symmetrically arranged. The side of the movable rod (5) close to the circular outer shell (4) is hinged to the end of the corresponding connecting rod (602) away from the movable disk (601). A screw (603) is rotatably installed on the inner wall of the right side of the circular outer shell (4). The left end of the screw (603) is fixedly connected to the right end of the output shaft of the drive motor (604). The movable disk (601) is threaded onto the screw (603).

5. The pressure pipeline inner wall inspection device according to claim 1, characterized in that: The front side of the drive motor (604) is fixed and electrically connected to a wireless remote control switch, which is matched with an external remote control.

6. The pressure pipeline inner wall inspection device according to claim 4, characterized in that: The right side of the movable disk (601) has a threaded hole that is threaded to the screw (603).

7. The pressure pipeline inner wall inspection device according to claim 4, characterized in that: The top, bottom, front and rear sides of the circular outer shell (4) are provided with rectangular through holes, and the connecting rod (602) is located in the corresponding rectangular through hole and does not contact the inner wall of the rectangular through hole.

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