A rotating rack for inspecting plastic pipe welding

Abstract

The utility model relates to the technical field of welding pipeline detection devices, specifically a plastic pipeline welding inspection rotating frame, including a frame body, a movable bracket, a screw and a rotating hand wheel, the movable bracket includes two crossed U-shaped brackets, the middle of the two U-shaped brackets are connected by a rotating shaft, one end of each U-shaped bracket is provided with a rolling body, and the other end is provided with a sliding seat; the surface of the screw is provided with two spaced thread segments, the thread directions of the two thread segments are opposite, and they rotate with the rotating hand wheel; when the utility model is used, two rotating frames are used, and the two ends of the welded pipeline are supported by a rotating frame respectively. Since a rolling body is provided at one end of the U-shaped bracket, the space formed by the intersection of the two U-shaped brackets is just used to place the pipeline, and the two sides of the pipeline are in contact with the rolling body respectively. The pipeline and the rolling body of the rotating frame are in active contact, and the operator can easily rotate the pipeline for convenient detection and observation.

Description

Technical Field

[0001] The utility model relates to the technical field of welding pipeline detection devices, in particular to a plastic pipeline welding inspection rotating frame. Background Art

[0002] Since the length of a single pipeline is limited, in actual use, multiple pipelines need to be welded before use. In order to ensure the sealing of the weld, the welded pipeline needs to be inspected. At present, the common inspection method is to place the welded pipeline on two brackets, then manually rotate the pipeline, and then inspect it by human eyes or with the help of automatic inspection equipment. When the diameter of the inspected pipeline is small, manual rotation of the pipeline can be easily completed, but for large-diameter pipelines, manual rotation is difficult, and the existing auxiliary inspection brackets cannot easily rotate the pipeline. Utility Model Content

[0003] The utility model aims to provide a rotating frame for inspecting plastic pipe welding, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic pipe welding inspection rotating frame, comprising a frame body, a movable bracket, a screw rod and a rotating hand wheel, the movable bracket comprising two crossed U-shaped brackets, the middle parts of the two U-shaped brackets are connected by a rotating shaft, one end of each of the U-shaped brackets is provided with a rolling body, and the other end is provided with a sliding seat; two spaced threaded segments are provided on the surface of the screw rod, and the thread directions of the two threaded segments are opposite, the two ends of the screw rod are respectively arranged on the side end surface of the frame body through bearings, one end of the screw rod extends out of the side end surface of the frame body and rotates with the rotating hand wheel; two spaced linear guide rails are provided at the bottom of the frame body, the two linear guide rails are parallel to each other, a threaded hole matching the threaded segment is provided in the middle part of the slide seat, and slide grooves matching the linear guide rails are provided on both sides of the slide seat, the middle part of the slide seat is penetrated by the screw rod, and the slide grooves on both sides of the slide seat are slidably matched with the two linear guide rails.

[0005] The U-shaped bracket includes two arc-shaped bracket bars and two connecting shafts. Second through holes are arranged at both ends of the bracket bars, and both ends of the two bracket bars are respectively connected through the connecting shafts.

[0006] The connecting shaft passes through the second through holes of the two bracket strips respectively, and a first locking cover is provided at the protruding end of the connecting shaft, and a first through hole is provided at the protruding end of the connecting shaft. A second locking pin passes through the first through hole, and two forked strips are provided at the tail of the second locking pin. The two forked strips are bent in reverse and fit onto the surface of the second locking cover.

[0007] The rolling body includes two rollers, two sleeves, and a plurality of support bearings. The inner cavity of the roller is provided with an internal thread, the outer circumferential surface of the sleeve is provided with an external thread, the support bearing is coaxially installed on the connecting shaft, the inner ring of the support bearing is an interference fit with the connecting shaft, the inner ring of the sleeve is an interference fit with the outer ring of the support bearing, and the roller is fixedly connected to the sleeve via the internal thread.

[0008] A slide seat hole penetrating the slide seat is arranged on the upper portion of the slide seat, and a connecting shaft at the lower portion of the U-shaped bracket passes through the slide seat hole.

[0009] A first through hole is provided in the middle of the bracket bar of the U-shaped bracket, two of the U-shaped brackets are cross-arranged, the rotating shaft passes through the first through holes of the four bracket bars, the protruding end of the rotating shaft is provided with a second locking cover, the protruding end of the rotating shaft is provided with a second through hole, a second locking pin passes through the second through hole, and two forked strips are provided at the tail of the second locking pin, and the two forked strips are bent in reverse and fit onto the surface of the second locking cover.

[0010] A limiting wheel is arranged at the connection between the rotating hand wheel and the screw rod, a plurality of limiting grooves are arranged on the surface of the limiting wheel, and a limiting rod is arranged on the upper part of the limiting wheel.

[0011] The frame body includes two side plates and two cross plates, the cross plates are fixedly connected to the side plates by bolts, the side plates are provided with through holes, a bearing end cover is provided in the through holes, the bearing end cover includes an end cover plate and a bearing seat, the bearing seat passes through the through holes, the end cover plate is attached to the outer side surface of the side plates, and is fixedly connected to the side plates by screws; the bearing is installed in the bearing seat.

[0012] A base is also provided at the bottom of the frame body, and the frame body is fixedly connected to the base by screws.

[0013] Slide grooves are respectively arranged on both sides of the bottom of the base.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the utility model is used, two rotating racks are used. The two ends of the welded pipe are supported by a rotating rack respectively. Since a rolling body is provided at one end of the U-shaped bracket, the space formed by the intersection of the two U-shaped brackets is just used to place the pipe, and the two sides of the pipe are in contact with the rolling body respectively. The pipe and the rolling body of the rotating rack are in active contact, and the operator can easily rotate the pipe, which is convenient for detection and observation. In addition, the U-shaped bracket of the utility model is connected to the screw rod through a sliding seat, and the screw rod is driven to rotate by turning the hand wheel, so that the opening and closing degree of the two U-shaped brackets can be controlled to adapt to pipes of different diameters, so that both sides of the pipe are always in contact with the rolling body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the utility model with the front horizontal plate removed.

[0018] Figure 3 It is a structural schematic diagram of the movable bracket of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the support bar of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the connection between the rolling body and the connecting shaft of the utility model.

[0021] Figure 6 yes Figure 5 Schematic diagram of the decomposition.

[0022] Figure 7 It is an exploded schematic diagram of the rotating shaft and the second locking cover of the utility model.

[0023] Figure 8 It is a partial structural schematic diagram of the screw rod of the utility model.

[0024] Fig. 9 It is a structural schematic diagram of the slide seat of the utility model.

[0025] Fig.10 It is a structural schematic diagram of the side plate of the utility model.

[0026] Fig.11 It is a structural schematic diagram of the bearing end cover of the utility model.

[0027] In the figure: 1 - frame body, 101 - side plate, 102 - cross plate, 1011 - through hole;

[0028] 2——movable bracket, 21——U-shaped bracket, 211——bracket bar, 2111——first through hole, 2112——second through hole, 212——connecting shaft, 2121——first through hole, 213——first locking cover, 214——first locking pin, 2141——bifurcation bar, 215——second locking cover, 22——rotating shaft, 221——second through hole, 216——second locking pin, 2161——bifurcation bar;

[0029] 3——screw rod, 31——threaded section;

[0030] 4——Turn the hand wheel;

[0031] 5 – rolling element, 51 – roller, 52 – two sleeves, 53 – support bearing;

[0032] 6——slide seat, 61——threaded hole, 62——slide groove, 63——slide seat hole;

[0033] 7 – bearings;

[0034] 8——Linear guide;

[0035] 9 – restricted round;

[0036] 10 – limit rod;

[0037] 11——bearing end cover, 111——end cover plate, 112——bearing seat;

[0038] 12 – base;

[0039] 13——Chute. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See Figures 1 to 11As shown, a plastic pipe welding inspection rotating frame includes a frame body 1, a movable bracket 2, a screw rod 3 and a rotating hand wheel 4. The movable bracket 2 includes two crossed U-shaped brackets 21, and the middle parts of the two U-shaped brackets 21 are connected by a rotating shaft 22. A rolling body 5 is arranged at one end of each U-shaped bracket 21, and a sliding seat 6 is arranged at the other end; two spaced thread segments 31 are arranged on the surface of the screw rod 3, and the thread directions of the two thread segments 31 are opposite. The two ends of the screw rod 3 are respectively arranged at the side ends of the frame body 1 through bearings 7 The bottom of the frame body 1 is provided with two linear guide rails 8 arranged at intervals, and the two linear guide rails 8 are parallel to each other. The middle of the slide 6 is provided with a threaded hole 61 matching the threaded section 31, and the two sides of the slide 6 are provided with slide grooves 62 matching the linear guide rails 8. The middle of the slide 6 is penetrated by the screw 3, and the threaded hole 61 matches the threaded section 31 of the screw 3. The slide grooves 62 on both sides of the slide 6 are slidably matched with the two linear guide rails 8. The screw 3 is driven to rotate by rotating the hand wheel 4. When the screw 3 rotates, due to the opposite thread directions of the two threaded sections 31, the two slides 6 will move in opposite or opposite directions along the screw 3. In this way, the opening and closing degree of the two U-shaped brackets 21 can be controlled to adapt to pipes of different diameters, so that both sides of the pipe are always kept in contact with the rolling body 5.

[0042] Preferably, the U-shaped bracket 21 includes two arc-shaped bracket bars 211 and two connecting shafts 212 . Second through holes 2112 are provided at both ends of the bracket bars 211 , and both ends of the two bracket bars 211 are connected by the connecting shafts 212 .

[0043] Furthermore, the connecting shaft 212 passes through the second through holes 2112 of the two bracket bars 211 respectively, and the protruding end of the connecting shaft 212 is provided with a first locking cover 213, and the protruding end of the connecting shaft 212 is provided with a first through hole 2121, and a first locking pin 214 passes through the first through hole 2121, and the tail of the first locking pin 214 is provided with two bifurcated strips 2141, and the two bifurcated strips 2141 are bent in the opposite direction and attached to the surface of the first locking cover 213. This design can prevent the connecting shaft 212 from being separated from the bracket bar 211.

[0044] Preferably, the rolling body 5 includes two rollers 51, two sleeves 52, and a plurality of support bearings 53. The inner cavity of the roller 51 is provided with an internal thread, the outer circumferential surface of the sleeve 52 is provided with an external thread, the support bearing 53 is coaxially mounted on the connecting shaft 212, the inner ring of the support bearing 53 is interference fit with the connecting shaft 212, the inner ring of the sleeve 52 is interference fit with the outer ring of the support bearing 53, the roller 51 is sleeved in the sleeve 52, and the roller 51 is fixedly connected to the sleeve 52 through the internal thread. When the pipeline contacts the roller 51, when the pipeline is rotated, the roller 51 will also rotate with it, and the friction between the pipeline and the roller 51 allows the inspection personnel to easily rotate the pipeline.

[0045] Preferably, a slide seat hole 63 penetrating the slide seat 6 is provided at the upper portion of the slide seat 6 , and the connecting shaft 212 at the lower portion of the U-shaped bracket 21 passes through the slide seat hole 63 .

[0046] Preferably, a first through hole 2111 is provided in the middle of the bracket bar 211 of the U-shaped bracket 21, the two U-shaped brackets 21 are cross-arranged, the rotating shaft 22 passes through the first through hole 2111 of the four bracket bars 211, the protruding end of the rotating shaft 22 is provided with a second locking cover 215, the protruding end of the rotating shaft 22 is provided with a second through hole 221, a second locking pin 216 passes through the second through hole 221, and the tail of the second locking pin 216 is provided with two forked strips 2161, and the two forked strips 2161 are bent in reverse and fit onto the surface of the second locking cover 215.

[0047] Preferably, a limiting wheel 9 is provided at the connection between the rotating hand wheel 4 and the screw rod 3, and a plurality of limiting grooves 91 are provided on the surface of the limiting wheel 9, and a limiting rod 10 is provided on the upper part of the limiting wheel 91. The limiting rod 10 can be moved up and down by rotating the limiting rod 10 connected to the handle, so that the limiting rod 10 is inserted into the limiting groove 91 or moves away from the limiting groove 91, so as to achieve the purpose of limiting the rotation of the screw rod 3. Of course, a self-locking device can also be directly provided on the rotating hand wheel 4 to achieve locking and prevent the screw rod 3 from rotating under other external forces.

[0048] The frame body 1 includes two side plates 101 and two cross plates 102. The cross plate 101 is fixedly connected to the side plates 102 by bolts. The side plates 101 are provided with through holes 1011. A bearing end cover 11 is provided in the through holes 1011. The bearing end cover 11 includes an end cover plate 111 and a bearing seat 112. The bearing seat 112 passes through the through holes 1011. The end cover plate 111 is attached to the outer side surface of the side plates 101 and is fixedly connected to the side plates 101 by screws. The bearing 7 is installed in the bearing seat 112. The outer ring of the bearing 7 and the inner ring of the bearing seat 112 are interference fit, and the outer ring of the bearing 7 and the inner ring of the bearing seat 112 will not rotate relative to each other.

[0049] A base 12 is also provided at the bottom of the rack body 1. The rack body 1 is fixedly connected to the base 12 by screws. The base 12 can be fixed at the detection site or used in conjunction with a track.

[0050] Preferably, slide grooves 13 are respectively provided on both sides of the bottom of the base 12. When in use, the base 12 is connected to the track laid in the detection site through the slide grooves 13, so that the utility model can be easily moved and the distance between the two rotating frames can be adjusted to adapt to detection pipelines of different lengths.

[0051] Working principle: The utility model uses two rotating racks, and the two ends of the welded pipe are supported by a rotating rack respectively. Since a rolling body 5 is provided at one end of the U-shaped bracket 21, the space formed by the intersection of the two U-shaped brackets 21 is just used to place the pipe, and the two sides of the pipe are respectively in contact with the rolling body 5. The pipe is in active contact with the rolling body 5 of the rotating rack, and the operator can easily rotate the pipe for convenient inspection and observation.

[0052] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rotating frame for inspecting plastic pipe welding, comprising a frame body, a movable bracket, a screw and a rotating hand wheel, characterized in that: The movable bracket comprises two crossed U-shaped brackets, the middle parts of the two U-shaped brackets are connected by a rotating shaft, one end of each U-shaped bracket is provided with a rolling body, and the other end is provided with a sliding seat; two spaced threaded segments are provided on the surface of the screw rod, and the thread directions of the two threaded segments are opposite, and the two ends of the screw rod are respectively arranged on the side end faces of the frame body through bearings, and one end of the screw rod extends out of the side end face of the frame body and rotates with the rotating handwheel; two spaced linear guide rails are provided at the bottom of the frame body, and the two linear guide rails are parallel to each other, a threaded hole matching the threaded segment is provided in the middle part of the slide seat, and slide grooves matching the linear guide rails are provided on both sides of the slide seat, the middle part of the slide seat is penetrated by the screw rod, and the slide grooves on both sides of the slide seat slide with the two linear guide rails.

2. The plastic pipe welding inspection rotating frame according to claim 1 is characterized by: The U-shaped bracket includes two arc-shaped bracket bars and two connecting shafts. Second through holes are arranged at both ends of the bracket bars, and both ends of the two bracket bars are respectively connected through the connecting shafts.

3. The plastic pipe welding inspection rotating frame according to claim 2 is characterized by: The connecting shaft passes through the second through holes of the two bracket strips respectively, and a first locking cover is provided at the protruding end of the connecting shaft. A first through hole is provided at the protruding end of the connecting shaft, and a first locking pin passes through the first through hole. Two forked strips are provided at the tail of the first locking pin, and the two forked strips are bent in reverse and fit onto the surface of the first locking cover.

4. The plastic pipe welding inspection rotating frame according to claim 3 is characterized by: The rolling body includes two rollers, two sleeves, and a plurality of support bearings. The inner cavity of the roller is provided with an internal thread, the outer circumferential surface of the sleeve is provided with an external thread, the support bearing is coaxially installed on the connecting shaft, the inner ring of the support bearing is an interference fit with the connecting shaft, the inner ring of the sleeve is an interference fit with the outer ring of the support bearing, and the roller is fixedly connected to the sleeve via the internal thread.

5. The plastic pipe welding inspection rotating frame according to claim 3 is characterized by: A slide seat hole penetrating the slide seat is arranged on the upper portion of the slide seat, and a connecting shaft at the lower portion of the U-shaped bracket passes through the slide seat hole.

6. The plastic pipe welding inspection rotating frame according to claim 2 is characterized by: A first through hole is provided in the middle of the bracket bar of the U-shaped bracket, two of the U-shaped brackets are cross-arranged, the rotating shaft passes through the first through holes of the four bracket bars, the protruding end of the rotating shaft is provided with a second locking cover, the protruding end of the rotating shaft is provided with a second through hole, a second locking pin passes through the second through hole, and two forked strips are provided at the tail of the second locking pin, and the two forked strips are bent in reverse and fit onto the surface of the second locking cover.

7. The plastic pipe welding inspection rotating frame according to claim 1 is characterized by: A limiting wheel is arranged at the connection between the rotating hand wheel and the screw rod, a plurality of limiting grooves are arranged on the surface of the limiting wheel, and a limiting rod is arranged on the upper part of the limiting wheel.

8. The plastic pipe welding inspection rotating frame according to claim 1, characterized in that: The frame body includes two side plates and two cross plates, the cross plates are fixedly connected to the side plates by bolts, the side plates are provided with through holes, a bearing end cover is provided in the through holes, the bearing end cover includes an end cover plate and a bearing seat, the bearing seat passes through the through holes, the end cover plate is attached to the outer side surface of the side plates, and is fixedly connected to the side plates by screws; the bearing is installed in the bearing seat.

9. The plastic pipe welding inspection rotating frame according to claim 1, characterized in that: A base is also provided at the bottom of the frame body, and the frame body is fixedly connected to the base by screws.

10. The plastic pipe welding inspection rotating frame according to claim 9, characterized in that: Slide grooves are respectively arranged on both sides of the bottom of the base.

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