A glass fiber reinforced plastic pipe water pressure testing equipment

Abstract

The utility model discloses a glass fiber reinforced plastic pipe water pressure testing device, which relates to the field of glass fiber reinforced plastic pipe testing, including a base, a supporting mechanism is arranged on the top of the base, two symmetrically distributed conical sealing blocks are arranged on both sides of the supporting mechanism, a rubber layer is arranged on the surface of the conical sealing block, a circular ring is arranged on the periphery of the conical sealing block, a first translation mechanism for driving the two circular rings to move closer to or away from each other is arranged on the base, and a plurality of clamping mechanisms equidistantly distributed on the circumference are arranged on the circular ring. The beneficial effect is that the conical sealing block is arranged to adapt to glass fiber reinforced plastic pipes of different diameters, a circular ring is arranged on the periphery of the conical sealing block, and a driving mechanism is arranged on the circular ring, and a plurality of V-shaped clamping plates are clamped at both ends of the glass fiber reinforced plastic pipe by the driving mechanism at the same time, so that the glass fiber reinforced plastic pipe can be prevented from being damaged while ensuring the sealing performance, so as to ensure the smooth progress of the test and avoid unnecessary losses.

Description

Technical Field

[0001] The utility model relates to the field of glass fiber reinforced plastic pipe testing, in particular to a glass fiber reinforced plastic pipe water pressure testing device. Background Art

[0002] FRP pipe, also known as glass fiber wound sand-filled pipe, mainly uses glass fiber and its products as reinforcing materials, high molecular weight unsaturated polyester resin, epoxy resin and other basic materials, and inorganic non-metallic granular materials such as quartz sand and calcium carbonate as fillers as the main raw materials. The water pressure test of FRP pipe is an important test to detect the quality of FRP pipe and obtain the design parameters of FRP pipe.

[0003] For example, the patent document with publication number CN115127927A discloses a marine FRP pipe water pressure test equipment, which seals the two ends of the FRP pipe through a sealing tube, injects water into the FRP pipe, and detects the water pressure through a pressure gauge. Another example is the patent document with publication number CN218567067U, which discloses a hydraulic engineering water pipe water pressure tester, which seals the two ends of the FRP pipe through an inflatable ball, so as to adapt to FRP pipes of different diameters. However, the inflatable ball has a certain elasticity. If the sealing of the inflatable ball to the pipeline is to be guaranteed, the air pressure in the inflatable ball needs to be greater than the water pressure in the pipeline, and the FRP pipe has a certain deformation capacity. In this case, if the water pressure that the FRP pipe can withstand is less than the pressure of the inflatable ball on the FRP pipe, then the two ends of the FRP pipe may be deformed or even broken due to the excessive air pressure of the inflatable ball, thereby affecting the test progress and causing certain losses. Utility Model Content

[0004] The purpose of the utility model is to provide a glass fiber reinforced plastic pipe water pressure testing device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A glass fiber reinforced plastic pipe water pressure testing device comprises a base, a supporting mechanism is arranged on the top of the base, two symmetrically distributed conical sealing blocks are arranged on both sides of the supporting mechanism, a rubber layer is arranged on the surface of the conical sealing block, a circular ring is arranged on the periphery of the conical sealing block, a first translation mechanism for driving the two circular rings to approach or move away from each other is arranged on the base, a plurality of clamping mechanisms equidistantly distributed in a circle are arranged on the circular ring, the clamping mechanism comprises a V-shaped clamping plate, the V-shaped clamping plate is located on the inner ring of the circular ring, a sliding rod is fixedly connected to the V-shaped clamping plate, the other end of the sliding rod passes through the circular ring and is fixedly connected to a limiting plate, the sliding rod is slidably connected to the circular ring, a cavity is opened inside the circular ring, a driving mechanism is arranged in the cavity, the driving mechanism is used to simultaneously drive the plurality of limiting plates to move along the radial direction of the circular ring, a second translation mechanism for driving the two conical sealing blocks to approach or move away from each other is arranged on the base, and a water pressure detection mechanism is arranged on one conical sealing block.

[0007] Preferably, the driving mechanism includes multiple one-way screws, the number of which is the same as the number of limit plates, the one-way screws are arranged along the radial direction of the ring, the one-way screws are connected to the limit plate through threads, one end of the one-way screw extends into the cavity and is fixedly connected to a bevel gear, the one-way screw is rotatably connected to the ring, a bevel gear ring is rotatably installed in the cavity, the bevel gear ring is meshed with multiple bevel gears, and a rotating handle is fixedly connected to one of the one-way screws.

[0008] Preferably, the first translation mechanism includes a bracket, the bracket is fixedly connected to the top of the base, a mounting plate is fixedly connected to the top of the bracket, the mounting plate is located above the ring, a first bidirectional screw is installed on the bottom of the mounting plate through a bearing seat, two symmetrically distributed sliders are threadedly connected to the first bidirectional screw, the slider is slidably connected to the mounting plate, the slider is fixedly connected to the top of the ring, a first motor is fixedly connected to one side of the mounting plate, and the output shaft of the first motor is fixedly connected to the first bidirectional screw.

[0009] Preferably, the second translation mechanism includes a second motor, the second motor is fixedly connected to one side of the base, the output shaft of the second motor is fixedly connected to a second bidirectional screw, the second bidirectional screw is installed on the top of the base through a bearing seat, the second bidirectional screw is threadedly connected to two symmetrically distributed sliding seats, the sliding seat is slidably connected to the base, and the conical sealing block is fixedly connected to the sliding seat.

[0010] Preferably, the water pressure detection mechanism includes a water inlet pipe, which runs through the center line of the conical sealing block. A pressure gauge is installed on the water inlet pipe. A hose is connected to the water inlet end of the water inlet pipe, and the hose is connected to an external pressurized water supply device.

[0011] Preferably, the supporting mechanism includes a fixed seat, the fixed seat is fixedly connected to the top of the base, the top of the fixed seat is fixedly connected to a hydraulic cylinder, and the top of the output shaft of the hydraulic cylinder is fixedly connected to a V-shaped support plate.

[0012] The beneficial effect is that a conical sealing block is provided to adapt to glass fiber reinforced plastic pipes of different diameters, a circular ring is provided on the periphery of the conical sealing block, and a driving mechanism is provided on the circular ring. The driving mechanism enables a plurality of V-shaped clamps to clamp the two ends of the glass fiber reinforced plastic pipe at the same time, thereby ensuring the sealing performance and preventing the glass fiber reinforced plastic pipe from being damaged, thereby ensuring the smooth progress of the test and avoiding unnecessary losses.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 It is a stereoscopic diagram of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model;

[0016] Figure 2 It is a front view of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model;

[0017] Figure 3 It is a circular stereogram of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the internal structure of a circular ring of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model;

[0019] Figure 5 It is a three-dimensional diagram of a water pressure detection mechanism of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model;

[0020] Figure 6 It is a front sectional view showing the positional relationship between a driving mechanism and a circular ring of a glass fiber reinforced plastic pipe water pressure testing device described in the utility model.

[0021] The accompanying drawings are marked as follows: 1. base; 2. supporting mechanism; 201. fixed seat; 202. hydraulic cylinder; 203. V-shaped support plate; 3. conical sealing block; 4. circular ring; 401. cavity; 5. clamping mechanism; 501. V-shaped clamping plate; 502. sliding rod; 503. limiting plate; 6. driving mechanism; 601. one-way screw; 602. bevel gear; 603. bevel gear ring; 7. first translation mechanism; 701. bracket; 702. mounting plate; 703. first two-way screw; 704. slider; 705. first motor; 8. second translation mechanism; 801. second motor; 802. second two-way screw; 803. sliding seat; 9. water pressure detection mechanism; 901. water inlet pipe; 902. pressure gauge; 903. hose. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 6As shown, a glass fiber reinforced plastic pipe water pressure testing device comprises a base 1, a supporting mechanism 2 is arranged on the top of the base 1, the supporting mechanism 2 is used to support the glass fiber reinforced plastic pipe and adjust the height of the glass fiber reinforced plastic pipe, two symmetrically distributed conical sealing blocks 3 are arranged on both sides of the supporting mechanism 2, and a rubber layer is arranged on the surface of the conical sealing block 3, and the two ends of the glass fiber reinforced plastic pipe are aligned with the conical sealing block 3, and the two conical sealing blocks 3 are close to each other and pressed against the two ends of the glass fiber reinforced plastic pipe for sealing, and a circular ring 4 is arranged on the periphery of the conical sealing block 3, and a first translation mechanism 7 for driving the two circular rings 4 to move closer to or away from each other is arranged on the base 1, and three clamping mechanisms 7 are arranged on the circular ring 4 and are equidistantly distributed on the circumference. Structure 5, the clamping mechanism 5 includes a V-shaped clamping plate 501, the V-shaped clamping plate 501 is located in the inner ring of the ring 4, a sliding rod 502 is fixedly connected to the V-shaped clamping plate 501, the other end of the sliding rod 502 passes through the ring 4 and is connected to the limiting plate 503 by screws, the sliding rod 502 is slidably connected to the ring 4, a cavity 401 is opened inside the ring 4, a driving mechanism 6 is arranged in the cavity 401, the driving mechanism 6 is used to simultaneously drive the three limiting plates 503 to move along the radial direction of the ring 4, a second translation mechanism 8 for driving the two conical sealing blocks 3 to move closer to or away from each other is arranged on the base 1, and a water pressure detection mechanism 9 is arranged on one conical sealing block 3.

[0026] The driving mechanism 6 includes three one-way screws 601, which are arranged along the radial direction of the ring 4. The one-way screws 601 are connected to the limit plate 503 through threads. One end of the one-way screw 601 extends into the cavity 401 and is fixedly connected to a bevel gear 602. The one-way screw 601 is rotatably connected to the ring 4. A bevel gear ring 603 is rotatably installed in the cavity 401. The bevel gear ring 603 is meshed with the three bevel gears 602. A rotating handle is fixedly connected to one of the one-way screws 601. The one-way screw 601 is rotated by rotating the handle. And bevel gear 602, the bevel gear 602 drives the bevel gear ring 603 to rotate, the bevel gear ring 603 drives the remaining two one-way screws 601 to rotate, so that the three one-way screws 601 rotate at the same time, the one-way screw 601 drives the limit plate 503 to move along the radial direction of the ring 4, the limit plate 503 drives the V-shaped clamping plate 501 to move through the sliding rod 502, when the conical sealing block 3 is against the two ends of the FRP pipe, the V-shaped clamping plate 501 is used to clamp the two ends of the FRP pipe, which can not only avoid damage to the FRP pipe, but also fix the FRP pipe.

[0027] The first translation mechanism 7 includes a bracket 701, the bracket 701 is fixedly connected to the top of the base 1, a mounting plate 702 is fixedly connected to the top of the bracket 701, the mounting plate 702 is located above the ring 4, a first bidirectional screw 703 is installed at the bottom of the mounting plate 702 through a bearing seat, two symmetrically distributed sliders 704 are connected to the first bidirectional screw 703 through threads, the slider 704 is slidably connected to the mounting plate 702, the slider 704 is fixedly connected to the top of the ring 4, and a first motor 70 is connected to one side of the mounting plate 702 through screws. 5. The output shaft of the first motor 705 is connected to the first bidirectional screw 703 through a coupling. The first motor 705 drives the first bidirectional screw 703 to rotate, so that the two sliders 704 are moved closer to or farther from each other, thereby adjusting the distance between the two rings 4. For glass fiber reinforced plastic pipes of different diameters, the lengths of the conical sealing block 3 extending into the glass fiber reinforced plastic pipe are different, so the contacting parts of the conical sealing block 3 and the glass fiber reinforced plastic pipe are different. By adjusting the distance between the two rings 4, the V-shaped clamping plate 501 is made to correspond to the two end edges of the glass fiber reinforced plastic pipe.

[0028] The second translation mechanism 8 includes a second motor 801, which is connected to one side of the base 1 by screws. The output shaft of the second motor 801 is connected to a second bidirectional screw 802 through a coupling. The second bidirectional screw 802 is installed on the top of the base 1 through a bearing seat. Two symmetrically distributed sliding seats 803 are threadedly connected to the second bidirectional screw 802. The sliding seat 803 is slidably connected to the base 1. The conical sealing block 3 is fixedly connected to the sliding seat 803. The second motor 801 drives the second bidirectional screw 802 to rotate, so that the first bidirectional screw 703 drives the conical sealing block 3 to move. After the glass fiber reinforced plastic pipe is placed on the conical sealing block 3, the two conical sealing blocks 3 are brought close to each other to close the two ends of the glass fiber reinforced plastic pipe.

[0029] The water pressure detection mechanism 9 includes a water inlet pipe 901, which runs through the center line of the conical sealing block 3. A pressure gauge 902 is installed on the water inlet pipe 901. The water inlet end of the water inlet pipe 901 is connected to a hose 903, and the hose 903 is connected to an external pressurized water supply device.

[0030] The supporting mechanism 2 comprises a fixing seat 201 , which is fixedly connected to the top of the base 1 , to which a hydraulic cylinder 202 is fixedly connected on the top of the fixing seat 201 , and to which a V-shaped supporting plate 203 is fixedly connected on the top of the output shaft of the hydraulic cylinder 202 .

[0031] Working principle: When in use, place the FRP pipe on the V-shaped support plate 203, and drive the V-shaped support plate 203 to move up and down through the hydraulic cylinder 202, so that the FRP pipe and the conical sealing block 3 are coaxial, and then drive the second bidirectional screw 802 to rotate through the second motor 801, and the second bidirectional screw 802 drives the two sliding seats 803 to approach each other, so that the two conical sealing blocks 3 are close to each other to seal the two ends of the FRP pipe. For FRP pipes of different diameters, the length of the conical sealing block 3 extending into the FRP pipe is different, that is, the distance between the two conical sealing blocks 3 is different, so it is necessary to adjust the ring 4 according to the contact position between the conical sealing block 3 and the FRP pipe, and drive the first bidirectional screw 703 to rotate through the first motor 705, and the first bidirectional screw 703 drives the two sliders 704 to approach each other. Or move away from each other, so that the V-shaped clamping plate 501 corresponds to the edges of the two ends of the FRP pipe, and then a one-way screw 601 and a bevel gear 602 are rotated by rotating the handle, and the bevel gear 602 drives the bevel gear ring 603 to rotate, and the bevel gear ring 603 drives the remaining two one-way screws 601 to rotate, so that the three one-way screws 601 rotate at the same time, and the one-way screw 601 drives the limit plate 503 to move along the radial direction of the ring 4, and the limit plate 503 drives the V-shaped clamping plate 501 to move toward the FRP pipe through the sliding rod 502, so that the V-shaped clamping plate 501 clamps the two ends of the FRP pipe to ensure the sealing between the conical sealing block 3 and the FRP pipe, and then water is passed into the hose 903 through the external pressurized water supply equipment, and the water enters the FRP pipe through the water inlet pipe 901, and the water pressure is detected by the pressure gauge 902.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A glass fiber reinforced plastic pipe water pressure testing device, comprising a base (1), a supporting mechanism (2) being arranged on the top of the base (1), characterized in that: Two symmetrically distributed conical sealing blocks (3) are arranged on both sides of the support mechanism (2), a rubber layer is arranged on the surface of the conical sealing block (3), a circular ring (4) is arranged on the periphery of the conical sealing block (3), a first translation mechanism (7) for driving the two circular rings (4) to move closer to or away from each other is arranged on the base (1), a plurality of clamping mechanisms (5) equidistantly distributed on the circumference are arranged on the circular ring (4), the clamping mechanism (5) comprises a V-shaped clamping plate (501), the V-shaped clamping plate (501) is located on the inner ring of the circular ring (4), and a sliding rod (502) is fixedly connected to the V-shaped clamping plate (501) ), the other end of the sliding rod (502) passes through the circular ring (4) and is fixedly connected to the limiting plate (503), the sliding rod (502) is slidably connected to the circular ring (4), a cavity (401) is provided inside the circular ring (4), a driving mechanism (6) is provided in the cavity (401), the driving mechanism (6) is used to simultaneously drive a plurality of limiting plates (503) to move radially along the circular ring (4), a second translation mechanism (8) is provided on the base (1) for driving the two conical sealing blocks (3) to move closer to or away from each other, and a water pressure detection mechanism (9) is provided on one conical sealing block (3).

2. A glass fiber reinforced plastic pipe water pressure testing device according to claim 1, characterized in that: The driving mechanism (6) comprises a plurality of one-way screw rods (601), the number of the one-way screw rods (601) being the same as the number of the limiting plates (503), the one-way screw rods (601) being arranged along the radial direction of the circular ring (4), the one-way screw rods (601) being connected to the limiting plate (503) by means of threads, one end of the one-way screw rods (601) extending into the cavity (401) and being fixedly connected to a bevel gear (602), the one-way screw rods (601) being rotatably connected to the circular ring (4), a bevel gear ring (603) being rotatably installed in the cavity (401), the bevel gear ring (603) being meshed with the plurality of bevel gears (602), and a rotating handle being fixedly connected to one of the one-way screw rods (601).

3. The glass fiber reinforced plastic pipe water pressure testing equipment according to claim 1, characterized in that: The first translation mechanism (7) comprises a bracket (701), the bracket (701) is fixedly connected to the top of the base (1), a mounting plate (702) is fixedly connected to the top of the bracket (701), the mounting plate (702) is located above the circular ring (4), a first bidirectional screw rod (703) is mounted on the bottom of the mounting plate (702) through a bearing seat, two symmetrically distributed sliders (704) are threadedly connected to the first bidirectional screw rod (703), the sliders (704) are slidably connected to the mounting plate (702), the sliders (704) are fixedly connected to the top of the circular ring (4), a first motor (705) is fixedly connected to one side of the mounting plate (702), and an output shaft of the first motor (705) is fixedly connected to the first bidirectional screw rod (703).

4. The glass fiber reinforced plastic pipe water pressure testing equipment according to claim 1, characterized in that: The second translation mechanism (8) comprises a second motor (801), the second motor (801) is fixedly connected to one side of the base (1), the output shaft of the second motor (801) is fixedly connected to a second bidirectional screw (802), the second bidirectional screw (802) is installed on the top of the base (1) through a bearing seat, two symmetrically distributed sliding seats (803) are connected to the second bidirectional screw (802) through threads, the sliding seats (803) are slidably connected to the base (1), and the conical sealing block (3) is fixedly connected to the sliding seat (803).

5. The glass fiber reinforced plastic pipe water pressure testing equipment according to claim 1, characterized in that: The water pressure detection mechanism (9) comprises a water inlet pipe (901), which runs through the center line of the conical sealing block (3). A pressure gauge (902) is installed on the water inlet pipe (901). A hose (903) is connected to the water inlet end of the water inlet pipe (901), and the hose (903) is connected to an external pressurized water supply device.

6. The glass fiber reinforced plastic pipe water pressure testing equipment according to claim 1, characterized in that: The support mechanism (2) comprises a fixed seat (201), the fixed seat (201) is fixedly connected to the top of the base (1), the top of the fixed seat (201) is fixedly connected to a hydraulic cylinder (202), and the top of the output shaft of the hydraulic cylinder (202) is fixedly connected to a V-shaped support plate (203).

Images