Water pressure test sealing structure in reinforced concrete pipeline

Abstract

The utility model is suitable for the technical field of hydrostatic tests, and provides a sealing structure for a hydrostatic test in a reinforced concrete pipeline, which comprises a steel cylinder arranged in a pipeline body, the steel ring is mounted at one end of the steel cylinder; the rubber tire is arranged in the groove of the steel ring and used for sealing the contact point of the steel ring and the pipeline body, the rubber tire is in contact with one side of the groove, the hard square rubber strip is arranged on the rubber tire in a sleeving mode, and the water swelling sealing rubber strip is arranged in the groove of the steel ring and used for sealing the contact point of the steel ring and the pipeline body. The water swelling sealing rubber strip is arranged on the hard square rubber strip in a sleeving manner; and the positioning mechanism is arranged on the steel cylinder and is used for positioning the steel cylinder. According to the water pressure test sealing structure in the reinforced concrete pipeline, the common tire inner container, the hard square rubber strip and the hollow water swelling sealing rubber strip which can be easily purchased from the market are arranged, and special customization is not needed, so that the cost is reduced, and the water pressure test sealing structure better meets the market requirement.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water pressure test technical field especially relates to a muscle concrete pipeline internal water pressure test sealing structure. BACKGROUND

[0002] Concrete pipeline is made of concrete or reinforced concrete, which is used for conveying water, oil, gas and other media. Concrete pipeline is a standard part of batch production, which is transported to the site for installation and laying after factory batch production. However, various performance tests need to be conducted on the concrete pipeline before transportation to the site, especially the internal water pressure test.

[0003] At present, the rubber sealing gasket and inflatable rubber ring in the conventional internal water pressure sealing structure belong to non-standard parts, which need to be specially customized, with high customization cost and long cycle, not meeting the market demand. INVENTION CONTENTS

[0004] The utility model provides a muscle concrete pipeline internal water pressure test sealing structure, which aims to solve the problem of high test cost and long test cycle caused by the need for special customization of rubber sealing gaskets and inflatable rubber rings in the conventional internal water pressure sealing structure.

[0005] To solve the above problems, the utility model is realized as follows: a muscle concrete pipeline internal water pressure test sealing structure, comprising: a steel cylinder arranged in the pipeline body; a steel ring installed at one end of the steel cylinder; a rubber tire, a hard square rubber strip and a water-swelling sealing rubber strip arranged in the groove of the steel ring for sealing the contact point between the steel ring and the pipeline body, the rubber tire being in contact with one side of the groove, the hard square rubber strip being sleeved on the rubber tire, and the water-swelling sealing rubber strip being sleeved on the hard square rubber strip; and a positioning mechanism arranged on the steel cylinder for positioning the steel cylinder.

[0006] Preferably, an air inlet is installed on one side of the steel cylinder, the air inlet being connected with the rubber tire, and a support frame is installed in the steel cylinder.

[0007] Preferably, the positioning mechanism comprises: a cross box installed at the bottom of the support frame; a plurality of mounting blocks fixedly installed in the cross box; a bidirectional screw rod and a unidirectional screw rod rotatably installed on the mounting blocks, respectively; a plurality of threaded cylinders slidably installed on the cross box, the threaded cylinders being threadedly connected with the bidirectional screw rod and the unidirectional screw rod, respectively; and a driving mechanism arranged on the cross box and the support frame for simultaneously driving the bidirectional screw rod and the unidirectional screw rod to rotate.

[0008] Preferably, the driving mechanism comprises a connecting frame fixedly installed on the top of the support frame, a rotating rod rotatably installed on the support frame and the cross box, the bottom end of the rotating rod extending into the cross box, a rectangular seat fixedly installed on the top end of the rotating rod, and a plurality of bevel gears fixedly sleeved on the rotating rod, the bidirectional screw rod and the unidirectional screw rod, the plurality of bevel gears being in meshing engagement.

[0009] Preferably, one end of the threaded cylinder is fixedly installed with a connecting block, and a non-slip pad is installed on the connecting block, the material of the non-slip pad being rubber.

[0010] Preferably, a guide groove is formed in the bottom of the threaded cylinder, and a guide block is fixedly installed on the inner wall of the bottom of the cross box, the top of the guide block being in sliding contact with the inner wall top of the guide groove.

[0011] Preferably, a positioning plate is fixedly sleeved on the rotating rod, the positioning plate being located below the rectangular seat, a fixed bolt being threadedly installed on the top of the positioning plate, and the fixed bolt being in rotatable contact with the top of the connecting frame.

[0012] Compared with the related art, the water pressure test sealing structure in the reinforced concrete pipeline has the following beneficial effects:

[0013] Compared with the prior art, the water pressure test sealing structure in the reinforced concrete pipeline is provided with the ordinary tire inner liner, the hard square rubber strip and the hollow water-swelling sealing rubber strip, the several materials can be easily purchased from the market without special customization, thereby reducing the cost and being more in line with market demand, the combination of the rubber tire, the hard square rubber strip and the water-swelling sealing rubber strip can ensure that the water in the pipeline body does not leak under high pressure, and the sealing performance is improved.

[0014] In summary, the water pressure test sealing structure in the reinforced concrete pipeline is provided with the ordinary tire inner liner, the hard square rubber strip and the hollow water-swelling sealing rubber strip which can be easily purchased from the market without special customization, thereby reducing the cost and being more in line with market demand. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of a sectional structure of a water pressure test sealing structure in a reinforced concrete pipeline provided by the utility model;

[0016] Figure 2 is a top view of a steel cylinder and a support frame provided by the utility model;

[0017] Figure 3 is a front view of a sectional structure of a steel cylinder and a steel ring provided by the utility model;

[0018] Figure 4 is a top view sectional structure schematic diagram of the cross box provided by the utility model;

[0019] Figure 5 For Figure 3 the enlarged structure schematic diagram of A part shown in the middle;

[0020] Figure 6 For Figure 1 the enlarged structure schematic diagram of B part shown in the middle;

[0021] Figure 7 For Figure 1 the enlarged structure schematic diagram of C part shown in the middle.

[0022] The drawings show that the utility model discloses a pipeline body, 2, steel cylinder, 3, steel ring, 4, rubber tire, 5, hard square rubber strip, 6, sealing rubber strip, 11, gas inlet, 12, support frame, 13, cross box, 14, bidirectional screw rod, 15, screw cylinder, 16, antiskid pad, 17, connecting frame, 18, rotating rod, 19, rectangular seat, 20, bevel gear, 21, guide groove, 22, guide block, 23, positioning plate, 24, fixed bolt. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the description and claims of the application as well as the above drawings, are not intended to limit the scope of the application to the particular embodiments described in the specification. The use of the terms "including," "containing," or "having" and their variants is meant to encompass the same without limiting to the narrow dictionary definition. The use of the terms "first," "second," and the like in the description and the claims is intended to modify, respectively, a first and second character in the singular, which appear in a claim or the specification. Such character can constitute either structures or functions. The use of certain terminology or particular determinants (for example, "determinant" or "determinants") is also not here intended to limit the scope of the present application, but is made merely for the convenience of the reader. The terms "first," "second," and the like do not denote any order, quantity, or importance, but are used to distinguish one element from another, and the terms "inner," "outer," "left," "right," and the like, indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are merely examples from among a great variety of embodiments that can be made. As it will be apparent from the embodiments described, the person skilled in the art will be able to conceive alternative embodiments based on the embodiments described and combining them in a simply manner.

[0025] The utility model discloses a kind of muscle concrete pipeline internal water pressure test sealing structure, such asFigures 1-7 As shown, the sealing structure for water pressure test in the reinforced concrete pipe comprises: a steel cylinder 2 arranged in the pipe body 1; a steel ring 3 installed at one end of the steel cylinder 2; a rubber tire 4, a hard square rubber strip 5 and a water-swelling sealing rubber strip 6 arranged in a groove of the steel ring 3 for sealing the contact point of the steel ring 3 and the pipe body 1, the rubber tire 4 is in contact with one side of the groove, the hard square rubber strip 5 is sleeved on the rubber tire 4, and the water-swelling sealing rubber strip 6 is sleeved on the hard square rubber strip 5; and a positioning mechanism arranged on the steel cylinder 2 for positioning the steel cylinder 2.

[0026] In the embodiment, during the water pressure test in the concrete pipe, the steel cylinder 2 is first arranged in the pipe body 1, then the steel cylinder 2 is fixed at a predetermined position by the positioning mechanism, then the steel ring 3 is installed at one end of the steel cylinder 2, the rubber tire 4, the hard square rubber strip 5 and the water-swelling sealing rubber strip 6 are sequentially arranged in the groove of the steel ring 3, the rubber tire 4 is in close contact with one side of the groove, the hard square rubber strip 5 is sleeved on the rubber tire 4 to further increase the sealing property, and the water-swelling sealing rubber strip 6 is sleeved on the hard square rubber strip 5 to form a final sealing layer.

[0027] During work, the rubber tire 4 is inflated to make the tire extrude the hard square rubber strip 5, the hard square rubber strip 5 extrudes the water-swelling sealing rubber strip 6 (as the water-swelling sealing rubber strip 6 is soft, if directly contacting the inflated rubber tire 4, the inflated rubber tire 4 has poor constraint effect, which leads to local over-expansion and tire burst, and the hard square rubber strip 5 can effectively constrain the deformation of the inflated tire), so that the water-swelling sealing rubber strip 6 is attached to the inner wall of the pipe body 1, and the water-swelling sealing rubber strip 6 is further expanded after the groove is filled with water, so that the attachment force between the water-swelling sealing rubber strip 6 and the pipe wall of the pipe body 1 is increased, and a better water sealing effect is achieved, through the arrangement of the ordinary tire inner liner, the hard square rubber strip 5 and the hollow water-swelling sealing rubber strip 6, the several materials can be easily purchased from the market without special customization, so that the cost is reduced and the market demand is met, through the combined use of the rubber tire 4, the hard square rubber strip 5 and the water-swelling sealing rubber strip 6, the water in the pipe body 1 under high pressure cannot leak, and the sealing performance is improved.

[0028] In further preferable embodiments of the utility model, an air inlet 11 is installed on one side of the steel cylinder 2, the air inlet 11 is connected with the rubber tire 4, and a support frame 12 is installed in the steel cylinder 2.

[0029] In the embodiment, the rubber tire 4 is inflated through the inflating nozzle 11, so that the water-swelling sealing strip 6 is tightly attached to the inner wall of the pipeline body 1, thereby further improving the sealing effect; when the rubber tire 4 is inflated, the contact area between the rubber tire 4 and the inner wall of the pipeline is increased, so that the possibility of leakage is reduced, and the accuracy and safety of the test are ensured; the rubber tire 4 is inflated through the inflating nozzle 11, so that the water-swelling sealing strip 6 is tightly attached to the inner wall of the pipeline body 1, thereby further improving the sealing effect and ensuring the accuracy and safety of the internal water pressure test; the installation of the support frame 12 enhances the structural strength of the steel cylinder 2, so that the steel cylinder 2 can withstand higher water pressure without deformation or damage, thereby improving the reliability and durability of the test.

[0030] In the further preferred embodiment of the utility model, the positioning mechanism comprises: a cross box 13 installed at the bottom of the support frame 12; a plurality of mounting blocks fixedly installed in the cross box 13; a bidirectional screw rod 14 and a unidirectional screw rod rotatably installed on the mounting blocks respectively; a plurality of threaded cylinders 15 slidably installed on the cross box 13, the threaded cylinders 15 being threadedly connected with the bidirectional screw rod 14 and the unidirectional screw rod respectively; and a driving mechanism arranged on the cross box 13 and the support frame 12 for simultaneously driving the bidirectional screw rod 14 and the unidirectional screw rod to rotate.

[0031] In the embodiment, when the internal water pressure test is performed, the rotation of the bidirectional screw rod 14 and the unidirectional screw rod is first adjusted by the driving mechanism, so that the threaded cylinders 15 slide along one side of the cross box 13, and the threaded cylinders 15 contact one side of the pipeline body 1, thereby positioning the steel cylinder 2 and ensuring that the steel cylinder 2 does not move; then, the sealing operation of the steel cylinder 2 is performed; finally, water is filled into the pipeline body 1 and pressurized for testing; through the design of the bidirectional screw rod 14 and the unidirectional screw rod, the positioning mechanism can limit the position of the steel cylinder 2, and the driving mechanism can simultaneously drive the bidirectional screw rod 14 and the unidirectional screw rod to rotate, thereby quickly fixing the position of the steel cylinder 2, simplifying the operation process and improving the work efficiency.

[0032] In the further preferred embodiment of the utility model, the driving mechanism comprises: a connecting frame 17 fixedly installed at the top of the support frame 12; a rotating rod 18 rotatably installed on the support frame 12 and the cross box 13, the bottom end of the rotating rod 18 extending into the cross box 13; a rectangular seat 19 fixedly installed at the top end of the rotating rod 18; a plurality of bevel gears 20 fixedly sleeved on the rotating rod 18, the bidirectional screw rod 14 and the unidirectional screw rod, and the bevel gears 20 being engaged with each other.

[0033] In the embodiment, when the external power source (such as an electric tightening gun) drives the rotating rod 18 to rotate through the rectangular seat 19, the bevel gear 20 on the rotating rod 18 starts to work, and the rotating power is transmitted to the two screw rods through the meshing of the bevel gear 20 on the two-way screw rod 14 and the one-way screw rod, and due to the meshing relationship of the bevel gear 20, the rotation of the rotating rod 18 can be converted into the rotating motion of the screw rod, thereby driving the threaded cylinder 15 on the screw rod to slide, so that the plurality of threaded cylinders 15 are in contact with the inner wall of the pipeline body 1, the steel cylinder 2 is clamped in the pipeline body 1, the steel cylinder 2 is positioned, and through the meshing relationship of the bevel gear 20, efficient transmission and conversion of power are realized, and synchronous sliding operation of the plurality of threaded cylinders 15 is maintained

[0034] In the further preferred embodiment of the utility model, the threaded cylinder 15 is fixedly installed with a connecting block at one end, the connecting block is installed with an antiskid pad 16, and the material of the antiskid pad 16 is rubber material.

[0035] In the embodiment, when the threaded cylinder 15 is adjusted to the predetermined position through the rotation of the two-way screw rod 14 and the one-way screw rod, the antiskid pad 16 is in close contact with the inner wall of the pipeline body 1, the antiskid pad 16 of rubber material has good elasticity and friction, and it can effectively prevent the steel cylinder 2 from sliding or moving under the action of high-pressure water flow, thereby ensuring the accuracy and safety of the test.

[0036] In the further preferred embodiment of the utility model, the bottom of the threaded cylinder 15 is provided with a guide groove 21, the inner wall bottom of the cross box 13 is fixedly installed with a guide block 22, and the top of the guide block 22 is in sliding contact with the inner wall top of the guide groove 21.

[0037] In the embodiment, when the two-way screw rod 14 and the one-way screw rod rotate, the threaded cylinder 15 slides along the guide direction of the cross box 13, at this time, the guide groove 21 and the guide block 22 cooperate to guide and stabilize the sliding track of the threaded cylinder 15, the top of the guide block 22 slides in the guide groove 21, and the stability and accuracy of the threaded cylinder 15 in the sliding process are ensured, and the inaccuracy or damage caused by deviation or shaking is prevented.

[0038] In the further preferred embodiment of the utility model, the rotating rod 18 is fixedly sleeved with a positioning plate 23, the positioning plate 23 is located below the rectangular seat 19, the top of the positioning plate 23 is screw-mounted with a fixing bolt 24, and the fixing bolt 24 is in rotating contact with the top of the connecting frame 17.

[0039] In the embodiment, after the steel cylinder 2 is positioned, the connection fastening degree between the connecting frame 17 and the rotating rod 18 can be adjusted by adjusting the tightening degree of the fixing bolt 24; when the fixing bolt 24 is tightened, it will tightly press the connecting frame 17 on the positioning plate 23, thereby enhancing the connection stability and reliability between the two, and further ensuring that the rotating rod 18 will not rotate, and also ensuring that the threaded cylinder 15 will not displace.

[0040] In summary, compared with the related art, the sealing structure is provided with the ordinary tire inner liner, the hard square rubber strip 5 and the hollow water-swelling sealing rubber strip 6 which can be easily purchased from the market, without special customization, thereby reducing the cost and being more in line with the market demand.

[0041] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other means.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different, but essentially not deviating from the concept of the present application, other technical solutions. These technical solutions also belong to the scope of the present application.

Claims

1. A sealing structure for water pressure test in reinforced concrete pipe, characterized in that: include: A steel cylinder located inside the pipeline body; a steel ring mounted on one end of the steel cylinder; A rubber tire, a hard square rubber strip, and a water-swellable sealing rubber strip are provided in the steel ring groove for sealing the contact point between the steel ring and the pipe body, wherein the rubber tire contacts one side of the groove, the hard square rubber strip is sleeved on the rubber tire, and the water-swellable sealing rubber strip is sleeved on the hard square rubber strip; A positioning mechanism is provided on the steel cylinder for positioning the steel cylinder.

2. The reinforced concrete pipe internal water pressure test sealing structure according to claim 1, characterized in that: An air filling nozzle is installed on one side of the steel cylinder, and the air filling nozzle is connected to the rubber tire. A support frame is installed in the steel cylinder.

3. The reinforced concrete pipe internal water pressure test sealing structure according to claim 2, characterized in that: The positioning mechanism comprises: a cross box mounted on the bottom of the support frame; A plurality of mounting blocks fixedly mounted in the cross box; respectively rotating the bidirectional screws and the unidirectional screws mounted on the plurality of mounting blocks; A plurality of threaded barrels are slidably mounted on the cross box, and the plurality of threaded barrels are respectively threadedly connected with the bidirectional screw and the unidirectional screw; A driving mechanism is provided on the cross box and the support frame for simultaneously driving the bidirectional screw and the unidirectional screw to rotate.

4. The reinforced concrete pipe internal water pressure test sealing structure according to claim 3, characterized in that: The driving mechanism comprises: A connecting frame fixedly mounted on the top of the supporting frame; Rotating a rotating rod mounted on the support frame and the cross box, wherein the bottom end of the rotating rod extends into the cross box; A rectangular seat fixedly mounted on the top end of the rotating rod; A plurality of bevel gears are respectively fixedly sleeved on the rotating rod, the bidirectional screw and the unidirectional screw, and the plurality of bevel gears are meshed with each other.

5. The reinforced concrete pipe internal water pressure test sealing structure according to claim 4, characterized in that: A connecting block is fixedly installed at one end of the threaded barrel, and an anti-slip pad is installed on the connecting block. The material of the anti-slip pad is rubber.

6. The reinforced concrete pipe internal water pressure test sealing structure according to claim 4, characterized in that: A guide groove is formed at the bottom of the threaded barrel, a guide block is fixedly mounted on the bottom of the inner wall of the cross box, and the top of the guide block is in sliding contact with the top of the inner wall of the guide groove.

7. The reinforced concrete pipe internal water pressure test sealing structure according to claim 4, characterized in that: A positioning plate is fixedly sleeved on the rotating rod, and the positioning plate is located below the rectangular seat. A fixing bolt is threadedly installed on the top of the positioning plate, and the fixing bolt is in rotational contact with the top of the connecting frame.

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