CN115508214A - PVC tubular product pressure detection auxiliary assembly - Google Patents

Abstract

The invention discloses a PVC pipe pressure detection auxiliary device which comprises a rack, suspension plates, a first supporting structure and a second supporting structure, wherein a pair of suspension rods are respectively and fixedly arranged on the opposite side walls of the two suspension plates, and a pair of hanging lugs which are correspondingly arranged with the adjacent suspension rods are respectively arranged on end enclosure assemblies at two ends of a pipe to be detected. The advantages are that: the pipe to be tested is suspended between the two suspension plates through the end enclosure assemblies at the two ends, and the end enclosure assemblies at the two ends are clamped through the suspension plates, so that the end enclosures can be prevented from falling off from the pipe to be tested under the action of pressure, the sealing performance of the two ends of the pipe to be tested is ensured, and the test stability is further improved; the distance between the two suspension plates and the heights of the first supporting structure and the second supporting structure are adjustable, so that the device can be suitable for testing pipes with different lengths and diameters, and is wide in application range; the distance between the two hanging plates can be adjusted through the first handle and the second handle, and the device is convenient and quick.

Description

PVC pipe pressure detection auxiliary equipment

Technical field:

The invention relates to the technical field of pressure detection of PVC pipes, in particular to auxiliary equipment for pressure detection of PVC pipes.

Background technique:

The national standard for PVC pipes for water supply is the hydrostatic test, that is, after continuously pressing to a certain pressure under the specified water temperature and room temperature, and then running statically for 1 hour, it is qualified if there is no rupture or leakage. The specific test process is as follows: First, cut a certain length (generally 170cm) of PVC pipe as the pipe to be tested, seal the two ends of the pipe to be tested with a head assembly, install a pressure tube on one of the heads, and then place the pipe to be tested. Put the test tube upright (perpendicular to the ground) and add water (pressure test medium). After filling up with water, push down the tube, and then inject water into the test tube for pressure test. In the above process, two or more people are required to operate together, which is cumbersome and inefficient. In addition, during the test process, the head assemblies at both ends are easy to fall off from the two ends of the tube to be tested under the action of the pressure inside the tube, and the stability is poor, which affects the test. went well.

Invention content:

The object of the present invention is to provide a PVC pipe pressure detection auxiliary equipment which improves the test stability.

The present invention is implemented by the following technical scheme: PVC pipe pressure detection auxiliary equipment, which includes a frame, a suspension plate, a first support structure and a second support structure, and two oppositely arranged said support structures are vertically arranged on said frame. Suspension boards, a pair of hanging rods are respectively fixed on the opposite side walls of the two suspension boards, and a pair of hanging lugs corresponding to the adjacent hanging rods are respectively provided on the head assemblies at both ends of the tube to be measured; A through hole corresponding to the tube to be measured is opened in the middle of one of the suspension plates, and a pressurized tube is communicated with the end plate of the head assembly inside the through hole, and on the pressurized tube A control valve and a pressure gauge are installed; the first support structure and the second support structure for supporting the tube to be tested are arranged on the frame between the two suspension plates; The suspension plate is a fixed suspension plate fixed with the frame, and the other suspension plate is a sliding suspension plate slidingly connected with the frame, and the sliding suspension plate slides along the axial direction of the through hole; A driving mechanism for driving the sliding suspension plate to move is fixed on the frame.

Further, the first support structure includes two support wheels arranged transversely on the frame below the tube to be tested, and the axial direction of the support wheels is vertically arranged relative to the axis of the through hole.

Further, two driving shafts respectively corresponding to the two supporting wheels are rotated on the frame, and the rotating shafts of the supporting wheels are connected to the corresponding driving shafts through brackets. The frame is provided with a first support drive for driving the drive shaft to rotate.

Further, the two support wheels are respectively arranged on the side wall of the drive shaft adjacent to the suspension plate.

Further, the first support drive includes a first drive, a driving wheel, a driven wheel, an inner guide wheel and an outer guide wheel, and an axial The driving wheel, the driven wheel, the inner guide wheel and the outer guide wheel arranged vertically to the through hole, a chain is sleeved between the driving wheel and the driven wheel, and the inner The guide wheel is engaged on the inside of the chain, and the outer guide wheel is engaged on the outside of the chain; the frame is provided with the first drive to drive the driving wheel to rotate, the driven wheel and the outer The guide wheels are coaxially fixed with the two drive shafts respectively.

Further, the first drive includes a first handle and a first clip, the bottom end of the first handle is slidably sleeved on the outer end of the central shaft of the driving wheel, and several A first clip that matches the first handle, and the first handle is movably snapped into any one of the first clips.

Further, the second support structure includes setting two pairs of support rollers, the support rollers are arranged axially along the through hole; the two pairs of support rollers are respectively arranged on the inner sides of the two suspension plates, and the support rollers located between the first support structure and the through hole.

Further, the support roller is rotatably connected to one end of the rocker arm, and the other end of the rocker arm is rotatably connected to the corresponding suspension plate, and a first wheel for driving the rocker arm to rotate outward is fixed on the suspension plate. Two drives.

Further, the second drive includes a second handle and a second clip, the bottom end of the second handle is slidably sleeved outside the other end of the rocker arm, and a corresponding The second handle corresponds to a plurality of the second clips, and the second handle is movably engaged in any one of the second clips.

Further, the driving mechanism is an automatic telescopic rod arranged horizontally, the cylinder body of the automatic telescopic rod is fixedly connected to the frame, and the piston rod of the automatic telescopic rod is fixedly connected to the sliding suspension plate.

Further, it also includes a pull rod and a pipe clamp, the pull rod is detachably connected to the inner side of the suspension plate, and the pipe clamp is connected to the pull rod.

Further, a support frame is rotated on one side of the frame, and a winch is fixed on the top of the support frame.

Advantages of the present invention: the tube to be tested is suspended between two suspension plates through the heads at both ends, and the head assembly at both ends is clamped by the suspension plate, which can prevent the head assembly from being removed under pressure. The test tube falls off to ensure the tightness of both ends of the test tube, thereby improving the stability of the test; the distance between the two suspension plates and the height of the first support structure and the second support structure are adjustable, and can be applied to different lengths, The diameter of the pipe is tested, and the application range is wide; the distance between the two suspension plates can be adjusted through the first and second handles, which is convenient and quick.

Description of drawings:

Fig. 1 is the front view of the present invention.

Figure 2 is a rear view of the present invention.

Fig. 3 is a structural schematic diagram of the head assembly.

Fig. 4 is a diagram of a usage state of the present invention.

Fig. 5 is another usage status diagram of the present invention.

Frame 1, suspension plate 2, first support structure 3, support wheel 301, drive shaft 302, first drive 303, driving wheel 304, driven wheel 305, inner guide wheel 306, outer guide wheel 307, chain 308, first Handle 309, first clip 310, second support structure 4, support roller 401, rocker arm 402, second handle 404, second clip 405, support frame 5, winch 6, hanging rod 7, tube to be tested 8, Hanging lug 9, through hole 10, head assembly 11, end plate 1101, inner casing 1102, outer casing 1103, connecting flange 1104, bolts 1105, pressurizing pipe 12, control valve 13, pressure gauge 14, driving mechanism 15 , pull rod 16, pipeline jaw 17, pull rod hook 18.

detailed description:

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, Constructed and operative in a particular orientation and therefore are not to be construed as limitations of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

As shown in Figures 1 to 5, the PVC pipe pressure detection auxiliary equipment includes a frame 1, a suspension plate 2, a first support structure 3 and a second support structure 4, and two opposing Set the suspension plate 2,

A pair of hanging rods 7 are respectively fixed on the opposite side walls of the two suspension plates 2, and a pair of hanging ears 9 corresponding to the adjacent hanging rods 7 are respectively provided on the head assembly 11 at both ends of the tube to be measured 8; The head assembly 11 includes an inner sleeve 1102, an end plate 1101 and an outer sleeve 1103. The hanging lug 9 is fixed on the outer wall of the inner sleeve 1102. The end of the inner sleeve 1102 adjacent to the connecting flange 1104 has a gradually reduced outer diameter. The sleeve end of the test tube 8 is sleeved outside the inner sleeve 1102, the test tube and the inner sleeve are interference fit, and the outer sleeve 1103 is sleeved on the outside of the test tube 8, and The flange at the end of the outer casing 1103 is connected to the connecting flange 1104 through bolts 1105 ; an end plate 1101 is fixed at the end of the inner casing 1102 adjacent to the inner casing 1102 . When in use, the outer casing 1103 is first placed on the outside of the tube to be measured 8, then the tube to be measured 8 is introduced from the socket end and then placed on the outside of the inner casing 1102; then the connecting flange 1104 and the outer casing are connected by bolts 1105 The flange connection on 1103 completes the installation of the head assembly.

A through hole 10 corresponding to the tube to be measured 8 is provided in the middle of a suspension plate 2, and a pressurized tube 12 is communicated with the end plate 1101 of the head assembly 11 inside the through hole 10, and the pressurized tube 12 can pass through The pipeline in the through hole 10 is connected to the water source, and a control valve 13 and a pressure gauge 14 are installed on the pressurized pipe 12; a supporting frame 5 is rotated on the top of one side of the frame 1, and a winch 6 is fixed on the top of the supporting frame 5 Fix the tube to be measured with the wire rope of the hoist 6, then the tube to be measured 8 can be hoisted by the hoist 6, the support frame 5 is rotated, the tube to be measured 8 is moved between two suspension plates 2, and the tube to be measured is moved by the hoist 6 The test tube is lowered, and the test tube 8 is adjusted so that the hanging ears 9 at both ends are respectively hung on the corresponding hanging rods 7, and the two suspension plates 2 are used to support the head assemblies 11 on both sides of the test tube 8 to prevent Excessive pressure in the pipe causes the head assembly 11 to break open and fall off, so as to ensure the smooth progress of the test; after that, remove the steel wire rope from the pipe to be tested and move it to one side of the frame 1; finally, open the control valve 13. The pressure tube 12 injects water into the tube for testing, and the pressure in the tube 8 to be tested can be observed through the pressure gauge 14 .

Preferably, one suspension plate 2 is a fixed suspension plate fixed with the frame 1, and the other suspension plate 2 is a sliding suspension plate slidably connected with the frame 1, and the sliding suspension plate 2 slides axially along the through hole 10; The frame 1 is fixed with a drive mechanism 15 that drives the sliding suspension plate 2 to move. The sliding suspension plate can be driven to move by the drive mechanism 15, and then the distance between the two suspension plates 2 can be adjusted to meet the requirements of the tubes to be tested with different lengths; the drive mechanism 15 is an automatic telescopic rod arranged horizontally, and the cylinder of the automatic telescopic rod The body is fixedly connected with the frame 1, and the piston rod of the automatic telescopic rod is fixedly connected with the sliding suspension plate 2; the automatic telescopic rod is any one of an air cylinder, an oil cylinder or an electric push rod; in the present embodiment, the driving mechanism 15 is an oil cylinder, through The expansion and contraction of the oil cylinder controls the reciprocating movement of the sliding suspension plate.

A first support structure 3 and a second support structure 4 for supporting the tube to be tested 8 are provided on the frame 1 between the two suspension plates 2, which can enhance the stability of the tube to be tested 8;

The first support structure 3 includes two support wheels 301 arranged laterally on the frame 1 below the tube 8 to be tested. The axial direction of the support wheels 301 is vertically arranged relative to the axis of the through hole 10, and the wheel surface of the support wheels 301 is V. type; the tube 8 to be measured is supported by the support wheel 301; two drive shafts 302 corresponding to the two support wheels 301 are rotated on the frame 1, and the rotating shaft of the support wheel 301 passes through the bracket and the corresponding drive shaft 302 connection, the frame 1 is provided with a first support drive that drives the drive shaft 302 to rotate; through the first support drive, the drive shaft 302 can be driven to rotate, and then the height of the support wheel 301 connected with the drive shaft 302 can be adjusted to achieve Support for tubes 8 with different diameters to be tested;

The first support drive comprises a first drive 303, a driving wheel 304, a driven wheel 305, an inner guide wheel 306 and an outer guide wheel 307, and the vertical rotation on the frame 1 on the first support structure 3 side is provided with an axial connection The driving wheel 304, the driven wheel 305, the inner guide wheel 306 and the outer guide wheel 307 vertically arranged in the hole 10 are provided with a chain 308 between the driving wheel 304 and the driven wheel 305, and the inner guide wheel 306 is meshed and arranged on the inside of the chain 308 , the outer guide wheel 307 is engaged and arranged on the outside of the chain 308; the first drive 303 for driving the driving wheel 304 to rotate is provided on the frame 1, and the driven wheel 305 and the outer guide wheel 307 are coaxially fixed with two drive shafts 302 respectively; When the first drive 303 drives the driving wheel 304 to rotate, it can drive the inner and outer guide wheels and the driven wheel 305 to rotate through the chain 308, and the rotation direction of the outer guide wheel 307 and the driven wheel 305 is opposite, and always keep relative or opposite direction rotation, and then can realize Simultaneously adjust the rise or fall of the two support wheels 301 to achieve the purpose of synchronous adjustment; When supporting, it is in an inverted splayed structure; when the pressure applied by the tube to be tested 8 on the two support wheels 301 acts on the chain 308, it can play the role of reverse tensioning the chain 308 to ensure stability;

Specifically, the first drive 303 includes a first handle 309 and a first clip 310. The bottom end of the first handle 309 is slidably sleeved on the outer end of the central axis of the driving wheel 304. A handle 309 is matched with the first clip 310 , and the first handle 309 is movably engaged in any one of the first clips 310 . After the first handle 309 is slid outward along the central axis of the driving wheel 304, the chain 308 can be driven to run through the driving wheel 304 by turning the first handle 309, and then drive the drive shaft 302 connected with the outer guide wheel 307 and the driven wheel 305 to be opposite Or reverse rotation to achieve the purpose of adjusting the height of the two supporting wheels 301; then push the first handle 309 inward along the central axis of the driving wheel 304, and snap the first handle 309 into the first clip 310 at the corresponding position. The support wheel 301 is fixed on the corresponding height.

The second support structure 4 includes two pairs of support rollers 401 arranged axially along the through hole 10; the two pairs of support rollers 401 are respectively arranged inside the two suspension plates 2, and the support rollers 401 are located below the through hole 10 One end of the support roller 401 is rotatably connected with the rocker arm 402, and the other end of the rocker arm 402 is rotatably connected with the corresponding suspension plate 2, and the second drive that drives the rocker arm 402 to rotate outwards is fixed on the suspension plate 2. The second drive can drive the rocker arm 402 to rotate, and then control the rotation of the support roller 401 around the axis of the rocker arm 402 to adjust the height of the support roller 401 in the vertical plane to support pipes with different diameters. The second drive includes a second handle 404 and a second clip 405. The bottom end of the second handle 404 is slidably sleeved outside the other end of the rocker arm 402. A plurality of second clips 405, the second handle 404 is movably engaged in any second clip 405; after sliding the second handle 404 outward along the rocker arm 402, the rocker arm 402 can be rotated to adjust by turning the second handle 404 Support the height of the roller 401, then push the second handle inward along the rocker arm 402, snap the second handle 404 into the second clip 405 at the corresponding position to fix the second handle 404, and then fix the support roller 401 on the corresponding height.

In addition, the pull rod 16 is detachably connected to the inside of the suspension plate 2, and the pipe clamp 17 is connected to the pull rod 16; specifically, the pull rod hook 18 is fixed on the inside of the suspension plate 2, and the two ends of the pull rod are movably snapped on the pull rod hook; After the pipeline to be tested is blasted and the test is completed, the residual pipeline on the head assembly 11 needs to be removed. At this time, the bolts 1105 on the head assembly 11 corresponding to the residual pipeline are first removed, and then the pipe jaws 17 are clamped on the head assembly. On the pipeline outside the assembly 11, hang the pull rod 16 on the pull rod hook 18 of another suspension plate 2, start the drive mechanism 15, make the distance between the two suspension plates 2 widen, and then drive the pipe gripper through the pull rod 17 Remove the residual pipe from the corresponding inner sleeve 1102.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. Auxiliary equipment for PVC pipe pressure detection, characterized in that it includes a frame, a suspension plate, a first support structure and a second support structure, and two opposite suspension plates are vertically provided on the frame , a pair of hanging rods are respectively fixed on the opposite side walls of the two suspension plates, and a pair of hanging lugs corresponding to the adjacent hanging rods are respectively provided on the head assembly at both ends of the tube to be tested; The middle part of the suspension plate is provided with a through hole corresponding to the tube to be tested, and a pressure tube is communicated with the end plate of the head assembly inside the through hole, and a pressure tube is installed on the pressure tube. control valve and pressure gauge; the first support structure and the second support structure for supporting the tube to be tested are arranged on the frame between the two suspension plates; one suspension plate It is a fixed suspension plate fixed with the frame, and the other suspension plate is a sliding suspension plate slidingly connected with the frame, and the sliding suspension plate slides along the axial direction of the through hole; A drive mechanism for driving the sliding suspension plate to move is fixed on the frame. 2. The auxiliary equipment for detecting pressure of PVC pipes according to claim 1, wherein the first support structure comprises two support wheels laterally arranged on the frame below the pipe to be measured, the The axial direction of the support wheel is vertically arranged relative to the axis of the through hole. 3. The PVC pipe pressure detection auxiliary equipment according to claim 2, characterized in that two drive shafts respectively corresponding to the two support wheels one by one are rotated on the frame, and the support wheels The rotating shaft is connected to the corresponding drive shaft through a bracket, and a first support drive for driving the drive shaft to rotate is arranged on the frame. 4. The PVC pipe pressure detection auxiliary equipment according to claim 3, wherein the two support wheels are respectively arranged on the side wall of the drive shaft adjacent to the suspension plate; The first support drive includes a first drive, a driving wheel, a driven wheel, an inner guide wheel and an outer guide wheel, and the vertical rotation on the frame on one side of the first support structure is provided with an axial direction and the through hole. The driving wheel, the driven wheel, the inner guide wheel and the outer guide wheel are vertically arranged, and a chain is sleeved between the driving wheel and the driven wheel, and the inner guide wheel is engaged with the The inner side of the chain, the outer guide wheel is engaged and arranged on the outer side of the chain; the first drive for driving the driving wheel to rotate is arranged on the frame, and the driven wheel and the outer guide wheel are respectively connected with the two The root drive shaft is coaxially fixed. 5. The PVC pipe pressure detection auxiliary device according to claim 4, characterized in that, the first drive includes a first handle and a first clip, and the bottom end of the first handle is slidingly sleeved on the active The outer end of the central shaft of the wheel is fixed on the frame with a number of first clips matching the first handle, and the first handle is movably snapped into any one of the first clips. 6. The PVC pipe pressure detection auxiliary equipment according to any one of claims 1 to 5, characterized in that, the second support structure includes two pairs of support rollers, and the support rollers are arranged axially along the through hole; Two pairs of supporting rollers are respectively arranged on the inner sides of the two suspension plates, and the supporting rollers are located between the first supporting structure and the through hole. 7. The auxiliary equipment for pressure detection of PVC pipes according to claim 6, wherein the support roller is rotatably connected to one end of the rocker arm, and the other end of the rocker arm is rotatably connected to the corresponding suspension plate. A second drive that drives the rocker to rotate outward is fixed on the suspension plate. 8. The auxiliary equipment for pressure detection of PVC pipes according to claim 7, wherein the second drive includes a second handle and a second clip, and the bottom end of the second handle is slidingly sleeved on the rocker. Outside the other end of the arm, several second clips corresponding to the corresponding second handles are fixed on the suspension plate, and the second handles are movably snapped into any one of the second clips. 9. The PVC pipe pressure detection auxiliary equipment according to claim 1, 2, 3, 4, 5, 7 or 8, characterized in that, the driving mechanism is an automatic telescopic rod arranged horizontally, and the automatic telescopic rod The cylinder body is fixedly connected with the frame, and the piston rod of the automatic telescopic rod is fixedly connected with the sliding suspension plate. 10. The PVC pipe pressure detection auxiliary equipment according to claim 1, 2, 3, 4, 5, 6, 8 or 9, characterized in that it also includes a pull rod and a pipe clamp, and the pull rod is detachably connected to the The inner side of the suspension plate is connected with pipe clamping claws on the pull rod.

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