CN113624611A - Jacking device for jacking pipe and using method thereof - Google Patents
Jacking device for jacking pipe and using method thereof Download PDFInfo
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- CN113624611A CN113624611A CN202110919022.8A CN202110919022A CN113624611A CN 113624611 A CN113624611 A CN 113624611A CN 202110919022 A CN202110919022 A CN 202110919022A CN 113624611 A CN113624611 A CN 113624611A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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Abstract
The invention relates to the field of pipe jacking detection equipment, in particular to a jacking device for pipe jacking and a using method thereof, wherein the jacking device comprises a placing assembly and a jacking assembly arranged above the placing assembly; the placing assembly comprises a test bearing platform; the test bearing platform is provided with a support ring, and the support ring is provided with a positioning inclined plane; the press-fitting mechanism comprises a joint cover plate, and the joint cover plate is connected with a driving part. The invention discloses a jacking device for jacking pipes, which can well simulate the working condition of actual jacking operation of the jacking pipes by the matched arrangement of a placing assembly and a jacking assembly 1, and can better verify the structure and the performance strength of the jacking pipes in the actual detection process.
Description
Technical Field
The invention relates to the field of jacking pipe detection equipment, in particular to a jacking device for jacking pipes and a using method thereof.
Background
The construction method of the ductile cast iron pipe is to excavate a road surface or a construction site to form a ditch, and then lay and bury the pipeline. In the construction process, the ground buildings are often damaged and the traffic roads are often blocked, particularly, the difficulty is very high when the construction is carried out by crossing barriers such as railways, highways and buildings, and the barriers are usually selected to be bypassed, so that the construction amount and the construction cost are increased.
The nodular cast iron jacking pipe comprises a centrifugally cast welded flange jacking pipe and a non-centrifugally cast whole-cast short jacking pipe, is used as a new technology for non-excavation construction of the nodular cast iron pipe, and solves the economic problems of large excavation amount, high cost and the like in laying construction. Meanwhile, the trenchless construction technology of the jacking pipe is beneficial to quickly laying and communicating pipelines across obstacles, solves the traffic jam pressure caused by pipeline construction, and has positive social benefits for maintaining the stability of citizens.
The prior art has the following disadvantages:
when the jacking pipe is subjected to jacking construction operation, a certain deflection angle is usually generated, so that the jacking pipe jacking flange is in local contact or single-point contact with the end surface of the bellmouth, and the problem directly causes that the jacking flange is damaged due to overlarge local stress, and the safety and the construction efficiency of the jacking operation are influenced;
the existing pushing type test method usually adopts a vertical or straight pushing method without a deflection angle to test the structure and the performance strength of the jacking pipe, and is not consistent with the actual situation of field construction.
During the field pushing construction, due to a construction route or a deflection angle caused by pushing deflection, the pushing flange is in incomplete surface contact with the end face of the socket, line contact or local contact or single-point contact is presented, the vertical or straight pushing type test method cannot be matched with the actual situation of the field pushing, and a test conclusion has larger errors.
Therefore, in order to simulate the actual assembly state of the jacking pipe, the existing test device needs to be optimally designed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a test device capable of simulating deflection pushing of a jacking pipe.
In order to achieve the purpose, the invention adopts the technical scheme that:
a jacking device for jacking pipes comprises a placing component and a jacking component arranged above the placing component; the placing assembly comprises a test bearing platform; the test bearing platform is provided with a support ring, and the support ring is provided with a positioning inclined plane; the press-fitting mechanism comprises a joint cover plate, and the joint cover plate is connected with a driving part.
The placing assembly further comprises a disc bearing pipe fitting arranged on the test bearing platform; the support ring is arranged on the bearing pipe fitting.
A placing bell mouth is arranged on the disc-bearing pipe fitting; the support ring is placed inside the placing socket.
The tray bearing pipe fitting is connected with the test bearing platform through the anti-slip pad.
The driving part is movably connected with the joint cover plate.
A use method of a jacking device for jacking pipes comprises the following steps:
step 1: placing a top pipe to be detected on the placing component; after the placement is finished, adjusting the position of the jacking pipe to be tested on the placement assembly; after the position is determined, the next step is carried out;
step 2: the upper end of the jacking pipe is extruded by using the pushing assembly, and the working state of jacking pipe pushing construction is simulated through the matching of the pushing assembly and the placing assembly;
and 3, recording the real-time working condition of the jacking pipe in the process of the step 2, and verifying the structure and the performance strength of the jacking pipe.
The inner diameter of a support ring in the placing assembly in the step 1 is changed according to the type of the jacking pipe, and when the jacking pipe to be detected is provided with a jacking flange, the inner diameter of the support ring is not smaller than the outer diameter of the jacking pipe; and when the jacking pipe to be detected is the whole casting type jacking pipe, the inner diameter of the support ring is not larger than the outer diameter of the jacking pipe.
And when the jacking pipe to be detected is the integral casting type jacking pipe, the inner diameter of the support ring is not larger than that of the jacking pipe.
The placing position of the support ring in the placing assembly in the step 1 is changed according to the type of the jacking pipe, and when the jacking pipe to be tested is provided with the pushing flange, the support ring is placed at the upper end part of the disc-bearing pipe fitting; and when the jacking pipe to be detected is the whole casting type jacking pipe, the support ring is placed inside the disc bearing pipe fitting.
And the support ring in the placing assembly and the joint cover plate in the pushing assembly are in surface contact with the corresponding positions of the jacking pipe.
The invention has the advantages that:
the invention discloses a jacking device for jacking pipes, which can well simulate the working condition of actual jacking operation of the jacking pipes by the matched arrangement of a placing assembly and a jacking assembly 1, and can better verify the structure and the performance strength of the jacking pipes in the actual detection process.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of a first embodiment of the present invention.
Fig. 3 is a schematic structural view of the support ring of the present invention.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the optimized disc-bearing pipe fitting and the optimized test bearing platform.
FIG. 6 is a schematic structural view of the support ring with the plug-in positioning block.
The labels in the above figures are:
1. the device comprises a pushing mechanism, 2, a test bearing platform, 3, a support ring, 4, a coiled pipe fitting, 5, a pipe to be tested, 6 and a protective cushion.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
A jacking device for jacking pipes comprises a placing component and a jacking component 1 arranged above the placing component; the placing assembly comprises a test bearing platform 2; the test bearing platform 2 is provided with a support ring 3, and the support ring 3 is provided with a positioning inclined plane 31; the press-fitting mechanism comprises a joint cover plate 12, and the joint cover plate 12 is connected with a driving part 11; the invention discloses a jacking device for jacking pipes, which can well simulate the working condition of actual jacking operation of the jacking pipes by the matched arrangement of a placing assembly and a jacking assembly 1, and can better verify the structure and the performance strength of the jacking pipes in the actual detection process.
The placing assembly mainly comprises a test bearing platform 2, wherein the test bearing platform 2 is mainly used for resisting and eliminating the downward pressing jacking thrust applied to the jacking pipe by the jacking assembly 1 in the test; also as a place for placing; in addition, the test bearing platform 2 is provided with a support ring 3, and the upper end face of the support ring 3 is provided with a positioning inclined plane 31; the positioning inclined plane 31 is obliquely arranged, so that the jacking pipe can be placed obliquely equivalently, and the deflection state of the jacking pipe during actual jacking construction operation can be simulated.
When the device is used specifically, the to-be-tested jacking pipe 5 is placed on the placement component, the jacking pipe socket 52 is generally arranged close to the placement component, and the jacking pipe pushing area is required to be in contact with the support ring 3 during placement; meanwhile, the end part of the pipe jacking bellmouth 53 is connected with a pushing assembly 1, a joint cover plate 12 in the pushing assembly 1 is attached to the end part of the pipe jacking, a driving part 11 drives the joint cover plate 12 to move downwards, the joint cover plate 12 moves downwards to extrude the pipe jacking, and a pushing area of the pipe jacking is in contact with a support ring 3, so that the stress state during pipe jacking pushing operation can be simulated, the working condition of actual pipe jacking pushing construction operation can be simulated finally, and the purpose of test determination can be achieved.
Further, the placing assembly also comprises a tray pipe fitting 4 arranged on the test bearing platform 2; the support ring 3 is arranged on the bearing pipe fitting 4; the simulation of the coil pipe fitting is the structure of a pipe jacking bellmouth 53 connected with a pipe jacking spigot 52 during pipe jacking installation, the connection modes of the pipe jacking pipe fitting 4 and the support ring 3 are various, and the support ring 3 can be arranged at the end part of the pipe jacking pipe fitting 4 or placed in the placing bellmouth 41; namely, a placing socket 41 is arranged on the tray pipe fitting 4 which is pointed out below; the support ring 3 is placed inside the placing socket 41; the reason for the two states is caused by different detected pipe jacking structures; common jacking pipes comprise centrifugal casting welded flange jacking pipes and non-centrifugal casting whole-casting short jacking pipes; in other words, the top pipe is divided into a structure with the pushing flange 51 and a structure without the pushing flange 51 due to the difference of the structures, the pushing flange 51 bears the pushing force during the pushing operation of the top pipe with the pushing flange 51, while the end surface of the top pipe socket 52 bears the pushing force during the pushing operation of the top pipe without the pushing flange 51, and the applying positions of the pushing forces are different, so the connecting positions of the support ring 3 and the top pipe are also different; the disk bearing pipe fitting 4 and the placing bell mouth 41 of the invention are equivalent to the structure of a pipe jacking bell mouth 53 for simulating the installation of a pipe jacking, so the connecting positions of the support rings 3 are different; when the jacking pipe 5 to be tested is provided with the pushing flange 51, the support ring 3 is placed at the upper end part of the disc-bearing pipe fitting 4; when the jacking pipe 5 to be detected is a whole-casting jacking pipe, the support ring 3 is placed inside the disc-bearing pipe fitting 4; meanwhile, when the jacking pipe 5 to be tested is provided with the pushing flange 51, the support ring 3 is placed at the upper end part of the disc-bearing pipe fitting 4; when the jacking pipe 5 to be detected is a whole-casting jacking pipe, the support ring 3 is placed inside the disc-bearing pipe fitting 4; in other words, different types of jacking pipe detection can be realized through different tray pipe fittings.
In addition, preferably, the disc bearing pipe fitting is connected with the test bearing platform through a threaded portion, the threaded portion comprises an inserting threaded column 41 arranged at the end portion of the disc bearing pipe fitting, an inserting threaded hole 42 is formed in the test bearing platform, and the disc bearing pipe fitting is inserted into the inserting threaded hole 42 of the test bearing platform through the inserting threaded column 41.
Further, the pipe fitting 4 of the tray bearing is connected with the test bearing platform 2 through the anti-skid pad 6; the anti-slip pad 6 is mainly used for preventing slipping, and the disc bearing pipe fitting 4 and the test bearing platform 2 are prevented from moving in a staggered mode; in order to avoid interference with the plug threaded post 41, the anti-slip mat may be provided with an escape opening.
Further, the driving part 11 is movably connected with the joint cover plate 12; the driving part 11 and the joint cover plate 12 are movably connected, so that the joint cover plate 12 has a certain deflection function, the joint cover plate 12 can be integrally contacted with the end part of the bell mouth 53 of the jacking pipe in the actual test process, and the jacking force exerted by the driving part 11 on the jacking pipe can be well distributed on the end surface of the bell mouth of the jacking pipe; specifically, the driving portion 11 and the joint cover 12 may be movably connected in such a manner that the driving portion 11 and the joint cover 12 are connected by a universal joint or a hinge.
In addition, the inner side of the joint cover plate is provided with a convex column 121, the convex column 121 is in threaded connection with the joint cover plate and can be detached and replaced, so that the joint cover plate can be suitable for detection of jacking pipes with different sizes, and meanwhile, the arrangement of the convex column 121 can well realize lateral deviation of the jacking pipes and play a role in limiting; of course, the present invention may not be used in actual use, and may be specifically selected as needed.
The driving unit 11 may be a driving member such as a hydraulic cylinder.
In addition, preferably, the lower end of the support ring is provided with an inserting positioning block 3-1, and the support ring is connected with a corresponding inserting positioning hole on the disc bearing pipe fitting through the inserting positioning block 3-1; the arrangement enables the supporting ring and the bearing pipe fitting to have an interconnecting function, and the problem that the supporting ring deviates relative to the bearing pipe fitting is avoided; meanwhile, a plurality of inserting positioning blocks 3-1 are arranged at the lower end of the support ring, and the inserting positioning blocks 3-1 are rectangular blocks; the inserting positioning holes in the disc bearing pipe fitting are rectangular holes, and are optimized to be larger, the water surface cross-sectional areas of the inserting positioning blocks 3-1 are different, namely the transverse sizes of the inserting positioning blocks 3-1 are different, so that the position of the support ring can be calibrated, and the position of the support ring is ensured; the jacking pipe to be tested can be rotated according to the requirement subsequently, and the multi-position detection of the jacking pipe is realized.
A using method of the pipe jacking test device comprises the following steps:
step 1: placing a top pipe to be detected on the placing component; after the placement is finished, adjusting the position of the jacking pipe 5 to be tested on the placement assembly; after the position is determined, the next step is carried out;
step 2: the pushing assembly 1 is used for extruding the upper end of the jacking pipe, and the working state of jacking pipe pushing construction is simulated through the matching of the pushing assembly 1 and the placing assembly;
and 3, recording the real-time working condition of the jacking pipe in the process of the step 2, and verifying the structure and the performance strength of the jacking pipe subsequently.
Through the use method, the pushing operation simulation under the actual working condition can be carried out on the push pipe based on the test device disclosed by the invention, so that the structural strength of the push pipe under different pushing forces and different deflection angles of the push pipe can be better judged; and data support is provided for actual production.
Further, the inner diameter of the support ring 3 in the placing assembly in the step 1 is changed according to the type of the jacking pipe, and when the jacking pipe 5 to be tested is provided with the jacking flange 51, the inner diameter of the support ring 3 is not smaller than the outer diameter of the jacking pipe; when the jacking pipe 5 to be detected is a whole-casting type jacking pipe, the inner diameter of the support ring 3 is not larger than the outer diameter of the jacking pipe; based on the arrangement, the contact between the support ring 3 and the jacking area can be ensured, the jacking operation can be smoothly carried out, and meanwhile, when the jacking pipe 5 to be detected is a whole-casting type jacking pipe, the inner diameter of the support ring 3 is not larger than that of the jacking pipe; due to the arrangement, the support ring 3 can be in complete contact with the end part of the jacking pipe, and the stability of supporting the jacking pipe is better ensured.
Further, the placing position of the support ring 3 in the placing assembly in the step 1 is changed according to the type of the jacking pipe, and when the jacking pipe 5 to be tested is provided with the jacking flange 51, the support ring 3 is placed at the upper end part of the disc-bearing pipe fitting 4; when the jacking pipe 5 to be detected is a whole-casting jacking pipe, the support ring 3 is placed inside the disc-bearing pipe fitting 4; based on the requirements, the testing device disclosed by the invention can be used for testing different types of jacking pipes, and the application range of the testing device is enlarged.
Furthermore, the support ring 3 in the placing assembly and the joint cover plate 12 in the pushing assembly 1 are in surface contact with the corresponding positions of the jacking pipe; the arrangement can ensure the acceptance uniformity of the jacking pipes.
The specific embodiment is as follows:
as shown in the attached drawings, the jacking device for jacking pipes; comprises a placing component and a pushing component 1 arranged above the placing component; the placing assembly comprises a test bearing platform 2; the test bearing platform 2 is provided with a support ring 3, and the support ring 3 is provided with a positioning inclined plane 31; the press-fitting mechanism comprises a joint cover plate 12, and the joint cover plate 12 is connected with a driving part 11; the driving part 11 is a hydraulic oil cylinder or a hydraulic press; the placing assembly further comprises a tray pipe fitting 4 arranged on the test bearing platform 2; the support ring 3 is arranged on the bearing pipe fitting 4; the disc-bearing pipe fitting 4 is provided with a placing bell mouth 41; the support ring 3 is placed inside the placing socket 41; the tray pipe fitting 4 is connected with the test bearing platform 2 through the anti-skid pad 6.
The driving part 11 is a hydraulic press device or a hydraulic oil cylinder device and is a test main body device; the pushing device plays a role in providing pushing force for the pushing type test; meanwhile, the driving portion 11 is connected with a frame structure, so that arrangement of the driving portion 11 is facilitated, in addition, the joint cover plate 12 is movably connected with the driving portion 11, namely the joint cover plate 12 is of a deflectable structure and can achieve a self-deflection function at a certain angle, the joint cover plate 12 is uniformly extruded on the end face of the pipe jacking socket 53 during a specific test, complete surface contact is achieved, and uniform stress is guaranteed.
The frame structure comprises side frames 1-2 and a transverse frame 1-1, wherein two ends of the transverse frame 1-1 are respectively provided with one side frame 1-2, the two side frames 1-2 and the transverse frame 1-1 form an inverted U-shaped structure, and a driving part is arranged on the transverse frame 1-1; meanwhile, a lateral positioning part 1-3 is arranged on the side frame 1-2, the lateral positioning part 1-3 comprises a lateral hydraulic cylinder 1-32 connected with the side frame 1-2, and the lateral hydraulic cylinder 1-32 is connected with an extrusion plate 1-31; the invention plays a good role in primary limiting through the arrangement of the lateral positioning parts 1-3, and is convenient for the placement of the jacking pipe on the supporting ring and the adjustment of the subsequent position.
In addition, each extrusion plate 1-31 is connected with at least two lateral hydraulic cylinders 1-32, the two lateral hydraulic cylinders 1-32 are connected with the extrusion plates 1-31 through hinges, and the two lateral hydraulic cylinders 1-32 in each lateral positioning part 1-3 are arranged at intervals up and down; due to the arrangement, the extrusion plates 1-31 can move in an inclined mode, so that the inclined joint of the jacking pipes is ensured, the joint degree of the extrusion plates 1-31 and the jacking pipes is ensured, and the subsequent limitation on the positions of the jacking pipes is facilitated.
The jacking pipe comprises a centrifugally cast welding flange jacking pipe and a non-centrifugally cast whole-cast short jacking pipe; the jacking pipe is a stressed part and an inspection part in the pushing type test process; when the jacking pipe 5 to be tested is a centrifugal casting welded flange jacking pipe, the pushing flange 51 on the jacking pipe is a key part for bearing pressure load in the jacking pipe pushing type test process, and the structural strength of the pushing flange directly influences the quality of a jacking pipe product.
If the jacking pipe 5 to be tested is a non-centrifugally cast whole-cast short jacking pipe, the end surface on one side of the upper socket of the jacking pipe is a key part for bearing pressure load in the jacking pipe pushing type test process, and the structural strength of the jacking pipe directly influences the quality of a jacking pipe product.
It should be noted that the support rings 3 for detecting the centrifugal casting welded flange jacking pipe and the non-centrifugal casting whole-cast short jacking pipe are similar in structure, but have larger profile size difference, specifically, the profile size is changed along with the size difference of the jacking pipes.
In addition, the support ring 3 of the invention realizes the function of deflecting the push pipe by an angle of a degrees in the pushing type test process, and the support ring 3 is arranged in the area between the push pipe pushing area and the disc-bearing pipe fitting 4; the lower end face of the pushing area of the jacking pipe, the support ring 3 and the coiled pipe fitting 4 are connected with the end face of the support ring 3, and the three end faces are in surface-to-surface uniform contact; meanwhile, in the invention, the pipe fitting 4 is coiled, and in the test process, the part is used for simulating the top pipe bellmouth 53 in the pushing construction process; the non-slip mat 6 can be a rubber leather mat, and mainly plays a role in non-slip, and prevents the tray pipe fitting 4 from slipping in the horizontal direction in the process of the deflection angle pushing test.
In addition, in the actual detection process, the deflection angle of the jacking pipe during detection, namely the deflection angle a in the attached drawing, is required, and the test range of the deflection angle is required to be more than 0 degree and less than or equal to 3 degrees and less than or equal to 30 degrees; the deflection angle is realized by exchanging the support ring 3, but it can of course also be realized in other ways.
Based on the disclosure of the content, the invention changes the original vertical or straight pushing type test method of the nodular cast iron jacking pipe, adopts a pushing type test scheme with a deflection angle, and simulates a field pushing type test according to the actual situation of field construction; more meets the actual production requirement.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (10)
1. A using method of a jacking device for jacking pipes, which is characterized in that,
the jacking device comprises a placing assembly and a jacking assembly arranged above the placing assembly; the placing assembly comprises a test bearing platform; the test bearing platform is provided with a support ring, and the support ring is provided with a positioning inclined plane;
the press-fitting mechanism comprises a joint cover plate, and the joint cover plate is connected with a driving part;
the using method comprises the following steps:
step 1: placing a top pipe to be detected on the placing component; after the placement is finished, adjusting the position of the jacking pipe to be tested on the placement assembly; after the position is determined, the next step is carried out;
step 2: the upper end of the jacking pipe is extruded by using the pushing assembly, and the working state of jacking pipe pushing construction is simulated through the matching of the pushing assembly and the placing assembly;
and 3, recording the real-time working condition of the jacking pipe in the process of the step 2, and verifying the structure and the performance strength of the jacking pipe subsequently.
2. The use method of the jacking device for jacking pipes as claimed in claim 1, wherein the inner diameter of the support ring in the placing assembly of step 1 is varied according to the type of the jacking pipe, and when the jacking pipe to be tested has a jacking flange, the inner diameter of the support ring is not smaller than the outer diameter of the jacking pipe; and when the jacking pipe to be detected is the whole casting type jacking pipe, the inner diameter of the support ring is not larger than the outer diameter of the jacking pipe.
3. The use method of the jacking device for jacking pipes as claimed in claim 2, wherein when the jacking pipe to be tested is a block-cast type jacking pipe, the inner diameter of the support ring is not larger than the inner diameter of the jacking pipe.
4. The method for using the jacking device for jacking pipes as claimed in claim 2, wherein the placing position of the support ring in the placing assembly of step 1 is changed according to the type of the jacking pipe, and when the jacking pipe to be tested has the jacking flange, the support ring is placed at the upper end part of the coiled pipe; and when the jacking pipe to be detected is the whole casting type jacking pipe, the support ring is placed inside the disc bearing pipe fitting.
5. The method for using the jacking device for jacking pipes as claimed in claim 2, wherein the support ring in the placing assembly and the joint cover plate in the jacking assembly are in surface contact with the corresponding positions of the jacking pipe.
6. The jacking device for jacking pipes is characterized by comprising a placing assembly and a jacking assembly arranged above the placing assembly; the placing assembly comprises a test bearing platform; the test bearing platform is provided with a support ring, and the support ring is provided with a positioning inclined plane; the press-fitting mechanism comprises a joint cover plate, and the joint cover plate is connected with a driving part.
7. The jacking device for jacking pipes as claimed in claim 6, wherein said placement assembly further comprises a pan-and-socket member disposed on the test platform; the support ring is arranged on the bearing pipe fitting.
8. The jacking device for jacking pipes as claimed in claim 7, wherein said tray pipe member is provided with a receiving socket; the support ring is placed inside the placing socket.
9. A jacking device for jacking pipes as claimed in any one of claims 7 to 8, wherein said tray pipe member is connected to said test platform by means of non-slip mat.
10. The jacking device for jacking pipes as claimed in claim 6, wherein said driving part is movably connected to said joint cover plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110919022.8A CN113624611B (en) | 2021-08-11 | 2021-08-11 | Jacking device for jacking pipe and application method thereof |
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| CN202110919022.8A CN113624611B (en) | 2021-08-11 | 2021-08-11 | Jacking device for jacking pipe and application method thereof |
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| CN113624611A true CN113624611A (en) | 2021-11-09 |
| CN113624611B CN113624611B (en) | 2023-10-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959858A (en) * | 2021-11-16 | 2022-01-21 | 沈阳仪表科学研究院有限公司 | Metal bellows stability test device |
| CN113959858B (en) * | 2021-11-16 | 2024-03-15 | 沈阳仪表科学研究院有限公司 | Metal bellows stability test device |
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| CN113624611B (en) | 2023-10-03 |
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