Freezing pipe for construction close to existing line

Abstract

The utility model relates to the technical field of freezing pipes, in particular to a freezing pipe for construction close to an existing line, which comprises a pipe body, a right-handed external thread is arranged at one end of the pipe body, a right-handed internal thread is arranged at the other end of the pipe body, and a pull-out mechanism is arranged on the surface of the pipe body and comprises an internal thread ring. The inner threaded ring is fixedly connected to the inner surface of the pipe body, the surface of the inner threaded ring is in threaded connection with an outer threaded disc, the surface of the outer threaded disc is fixedly connected with a limiting disc, the surface of the limiting disc is fixedly connected with a connecting rod, and the surface of the connecting rod is fixedly connected with a first outer threaded column. The pipe body is pulled out anticlockwise through the pulling-out mechanism, the disjunction phenomenon caused by clockwise pulling-out of the pipe body is avoided, the pulling-out difficulty of the pipe body is reduced, the pulling-out efficiency of the pipe body is improved, other engineering construction is prevented from being affected by the pipe body, and resource cost is further saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to freezing pipe technical field, concretely is a freezing pipe for construction near existing line. BACKGROUND

[0002] In the process of construction in the existing tunnel, in order to guarantee the safety of construction, will set up freezing pipe in the soil layer, then adds refrigerant into freezing pipe to make the soil freeze, thereby greatly improve the stability of soil layer.

[0003] Freezing engineering is a kind of temporary support engineering, after the main structure is completed, freezing pipe does not play the role, since freezing pipe is generally by multiple screwing, when drilling, it is rotated according to the screwing direction, and soil layer is in soft state, when pulling out, freezing pipe has been connected with frozen soil, and adhesion is obviously increased, at this time, rotating according to the original direction, the adhesion between multiple freezing pipes and frozen soil will have an accumulation effect, and torque can even exceed the strength of freezing pipe, if reverse rotation is used, it will lead to disconnection, and freezing pipe is difficult to pull out, freezing pipe generally uses low carbon steel pipe, if freezing pipe is not pulled out, it will not only affect the construction of other engineering, but also waste a lot of resources, therefore, a freezing pipe for construction near existing line is designed. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a freezing pipe for construction near existing line to solve the problems that the existing freezing pipe is difficult to pull out, if freezing pipe is discarded and not pulled out, it will not only affect the construction of other engineering, but also waste a lot of resources.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme, a freezing pipe for construction near existing line: including pipe body, the one end of pipe body is provided with right-hand thread, the other end of pipe body is provided with right-hand internal thread, the surface of pipe body is provided with pulling-out mechanism, the pulling-out mechanism includes internal thread ring, the internal thread ring is fixedly connected on the inner surface of pipe body, the surface of internal thread ring is threadedly connected with external thread disc, the surface of external thread disc is fixedly connected with limiting disc, the surface of limiting disc is fixedly connected with connecting rod, the surface of connecting rod is fixedly connected with first external thread column, the surface of connecting rod is provided with first through hole, the surface of first external thread column is threadedly connected with internal thread cylinder, the surface of internal thread cylinder is fixedly connected with lengthening rod, the surface of lengthening rod is fixedly connected with second external thread column, the surface of lengthening rod is provided with second through hole, and the second through hole is connected with plug-in rod.

[0006] Preferably, the pipe body is provided with multiple groups, the right-hand thread on one group of pipe bodies is threadedly connected with the right-hand internal thread on another group of pipe bodies, and the right-hand thread is connected between the right-hand thread and the right-hand internal thread.

[0007] Preferably, the outer ring diameter of the female threaded ring is the same as the inner ring diameter of the pipe body, the diameter of the limiting disc is equal to the outer ring diameter of the female threaded ring, and the diameter of the male threaded disc is equal to the inner ring diameter of the female threaded ring.

[0008] Preferably, the limiting disc is slid into the interior of the pipe body through the right-handed female thread, and the male threaded disc is slid into the interior of the pipe body through the limiting disc.

[0009] Preferably, the male threaded disc and the female threaded ring are connected through left-handed threads, the male threaded disc is brought into contact with and connected to the upper surface of the female threaded ring through rotation on the female threaded ring.

[0010] Preferably, the male threaded disc and the female threaded ring are connected through left-handed threads, the male threaded disc is brought into contact with and connected to the upper surface of the female threaded ring through rotation on the female threaded ring.

[0011] Preferably, the insertion rod is in the shape of a "T", the first through hole and the second through hole have the same diameter, and the insertion rod can be connected to the first through hole through perforation.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The freezing pipe, the male threaded disc and the limiting disc are slid into the interior of the pipe body through the right-handed female thread, the male threaded disc is slid onto the female threaded ring, the male threaded disc and the female threaded ring are connected through rotation of the female threaded ring on the male threaded disc, the male threaded disc is brought into contact with and connected to the surface of the female threaded ring through rotation of the female threaded ring on the male threaded disc, the insertion rod is inserted into the first through hole at this time, the connection rod is driven to rotate through the insertion rod, the female threaded ring is driven to rotate synchronously through the limiting disc and the male threaded disc, and the pipe body is driven to rotate counterclockwise in the soil layer through the female threaded ring, so that the pipe body can be pulled out, the disconnection phenomenon caused by pulling out the pipe body clockwise is avoided, the difficulty of pulling out the pipe body is reduced, the pulling-out efficiency of the pipe body is improved, the pipe body does not affect other engineering construction, and resource cost is saved.

[0014] 2. The freezing pipe, the male threaded disc and the limiting disc are slid into the interior of the pipe body through the right-handed female thread, the male threaded disc is slid onto the female threaded ring, the male threaded disc and the female threaded ring are connected through rotation of the female threaded ring on the male threaded disc, the insertion rod is inserted into the first through hole at this time, the connection rod is driven to rotate through the insertion rod, the female threaded ring is driven to rotate synchronously through the limiting disc and the male threaded disc, and the pipe body is driven to rotate counterclockwise in the soil layer through the female threaded ring, so that the pipe body can be pulled out, the disconnection phenomenon caused by pulling out the pipe body clockwise is avoided, the difficulty of pulling out the pipe body is reduced, the pulling-out efficiency of the pipe body is improved, the pipe body does not affect other engineering construction, and resource cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the utility model.

[0016] Figure 2 It is the structure front view cross section perspective schematic diagram of the utility model;

[0017] Figure 3 It is the structure front view cross section perspective schematic diagram of the utility model Figure 2 It is the structure front view cross section perspective schematic diagram of the utility model

[0018] Figure 4 It is the structure front view cross section perspective schematic diagram of the utility model

[0019] Figure 5 It is the structure front view cross section perspective schematic diagram of the utility model

[0020] In the figure: 1, pipe body; 11, right-handed external thread; 12, right-handed internal thread; 2, internal thread ring; 21, external thread disc; 22, limiting disc; 23, connecting rod; 24, first external thread column; 25, first through hole; 26, internal thread cylinder; 27, lengthening rod; 28, second through hole; 29, second external thread column; 210, plug-in rod. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5 , the utility model provides an embodiment:

[0022] A frozen pipe for construction near existing line: including pipe body 1, the one end of pipe body 1 is provided with right-handed external thread 11, the other end of pipe body 1 is provided with right-handed internal thread 12, pipe body 1 is hit into the soil layer by drilling machine, and pull-out mechanism is arranged on the surface of pipe body 1, the pull-out mechanism includes internal thread ring 2, internal thread ring 2 is fixedly connected to the inner surface of pipe body 1, and external thread disc 21 is threadedly connected to the surface of internal thread ring 2, limiting disc 22 is fixedly connected to the surface of external thread disc 21, connecting rod 23 is fixedly connected to the surface of limiting disc 22, first external thread column 24 is fixedly connected to the surface of connecting rod 23, first through hole 25 is formed in the surface of connecting rod 23, internal thread cylinder 26 is threadedly connected to the surface of first external thread column 24, lengthening rod 27 is fixedly connected to the surface of internal thread cylinder 26, second external thread column 29 is fixedly connected to the surface of lengthening rod 27, and second through hole 28 is formed in the surface of lengthening rod 27, and plug-in rod 210 is connected to second through hole 28, the pull-out mechanism can rotate pipe body 1 counterclockwise, so that pipe body 1 is pulled out from the soil layer, avoids the disconnection phenomenon caused by pulling out pipe body 1 clockwise, reduces the pull-out difficulty of pipe body 1, improves the pull-out efficiency of pipe body 1, avoids the influence of pipe body 1 on other engineering construction, and saves resource cost.

[0023] Further, the pipe body 1 is provided with multiple groups, the right-handed external thread 11 on one group of pipe body 1 is threadedly connected to the right-handed internal thread 12 on another group of pipe body 1, the right-handed thread connection between the right-handed external thread 11 and the right-handed internal thread 12, the multiple groups of pipe body 1 are connected through the right-handed external thread 11 and the right-handed internal thread 12, so that the length of the pipe body 1 meets the depth of the soil layer, and the overall freezing effect of the pipe body 1 is guaranteed.

[0024] Further, the outer ring diameter of the internal thread ring 2 is the same as the inner ring diameter of the pipe body 1, the diameter of the limiting disc 22 is equal to the outer ring diameter of the internal thread ring 2, and the diameter of the external thread disc 21 is equal to the inner ring diameter of the internal thread ring 2, which enables the limiting disc 22 to guide the position of the external thread disc 21 inside the pipe body 1, so that the external thread disc 21 can be quickly threadedly connected to the internal thread ring 2.

[0025] Further, the limiting disc 22 is slid into the inside of the pipe body 1 through the right-handed internal thread 12, the limiting disc 22 drives the external thread disc 21 to slide into the inside of the pipe body 1, the external thread disc 21 is slid to the internal thread ring 2 inside the pipe body 1 through the limiting disc 22, and under the limitation of the limiting disc 22, the external thread disc 21 can be directly threadedly connected to the internal thread ring 2 through rotation.

[0026] Further, the left-handed thread connection between the external thread disc 21 and the internal thread ring 2 enables the limiting disc 22 to be in contact and connected to the upper surface of the internal thread ring 2 through rotation on the internal thread ring 2, the limiting disc 22 limits the limit position of the thread connection of the external thread disc 21 on the internal thread ring 2, so that the external thread disc 21 can be synchronously rotated with the pipe body 1 through the internal thread ring 2 in the process of rotation.

[0027] Further, the left-handed thread connection between the first external thread column 24 and the internal thread cylinder 26 enables the lengthener 27 to be connected through the first external thread column 24, the internal thread cylinder 26 and the connecting rod 23, the lengthener 27 is provided with multiple groups, one group of lengthener 27 is threadedly connected to the second external thread column 29 on another group of lengthener 27, since the lengthener 27 and the first external thread column 24 are left-handed threadedly connected, the internal thread cylinder 26 and the second external thread column 29 are also left-handed threadedly connected, the rotation direction of the lengthener 27 and the connecting rod 23 is the same, and the lengthener 27 and the lengthener 27 can drive the internal thread ring 2 and the pipe body 1 to rotate counterclockwise through the external thread disc 21 and the limiting disc 22 in the process of rotation, and the installation quantity of the lengthener 27 can be increased according to the actual length of the pipe body 1.

[0028] Further, the plug-in rod 210 is in the shape of "T", the first through hole 25 and the second through hole 28 have the same diameter, the plug-in rod 210 can be connected to the first through hole 25 through the hole, so that the plug-in rod 210 is convenient for rotating the connecting rod 23, and the plug-in rod 210 is connected to the second through hole 28 through the hole, and the plug-in rod 210 is also convenient for rotating the extension rod 27.

[0029] Working principle: the outer thread disc 21 and the limiting disc 22 are slid from the right-handed internal thread 12 to the inside of the pipe body 1 through the connecting rod 23, so that the outer thread disc 21 is slid to the internal thread ring 2, the internal thread ring 2 is rotated on the outer thread disc 21, so that the outer thread disc 21 and the internal thread ring 2 are threadedly connected, the outer thread disc 21 is rotated on the internal thread ring 2, so that the limiting disc 22 is rotated to contact the surface of the internal thread ring 2, at this time, the plug-in rod 210 is inserted into the first through hole 25, the connecting rod 23 is driven to rotate through the plug-in rod 210, the internal thread ring 2 is driven to rotate synchronously through the limiting disc 22 and the outer thread disc 21, and the pipe body 1 is driven to rotate counterclockwise in the soil layer through the internal thread ring 2, so that the pipe body 1 is pulled out, the disconnection phenomenon caused by pulling out the pipe body 1 clockwise is avoided, the difficulty of pulling out the pipe body 1 is reduced, the pulling-out efficiency of the pipe body 1 is improved, the pipe body 1 affects other engineering construction is avoided, and the resource cost is saved.

[0030] The internal thread cylinder 26 is threadedly connected to the first outer thread column 24, so that the extension rod 27 is circumscribed on the surface of the connecting rod 23, the length of the connecting rod 23 is increased, the internal thread cylinder 26 on another group of extension rods 27 is threadedly connected to the second outer thread column 29 on this group of extension rods 27, so that the extension rod 27 can be continuously lengthened, according to the required length, the appropriate extension rod 27 is circumscribed, the plug-in rod 210 is connected to the second through hole 28 through the hole, the extension rod 27 can be driven to rotate through the plug-in rod 210, and then the connecting rod 23 is driven to rotate, so that the pipe body 1 of different depths is pulled out.

Claims

1. A freezing pipe for construction adjacent to an existing line, characterized by: The utility model provides a pipe body, one end of the pipe body is provided with right hand external thread, the other end of the pipe body is provided with right hand internal thread, the surface of the pipe body is provided with pull -out mechanism, the pull -out mechanism includes internal thread ring, the internal thread ring fixed connection is in the inner surface of pipe body, the surface of internal thread ring is threadedly connected with external thread disc, the surface of external thread disc is fixedly connected with limiting disc, the surface of limiting disc is fixedly connected with connecting rod, the surface of connecting rod is fixedly connected with first external thread column, the surface of connecting rod is equipped with first through -hole, the surface of first external thread column is threadedly connected with internal thread cylinder, the surface of internal thread cylinder is fixedly connected with lengthening rod, the surface of lengthening rod is fixedly connected with second external thread column, the surface of lengthening rod is equipped with second through -hole, and the second through -hole is connected with the plug -in rod of perforation.

2. The freezing pipe for construction adjacent to existing line according to claim 1, characterized in that: The pipe body is provided with multiple groups, and the right hand external thread on one group of pipe bodies is threadedly connected with the right hand internal thread on another group of pipe bodies.

3. The freezing pipe for construction adjacent to existing line according to claim 1, characterized in that: The outer diameter of the internal thread ring is same with the inner diameter of the pipe body, the diameter of the limiting disc is same with the outer diameter of the internal thread ring, and the diameter of the external thread disc is same with the inner diameter of the internal thread ring.

4. The freezing pipe for construction adjacent to existing line according to claim 3, characterized in that: The limiting disc is slid to the inside of the pipe body through the right hand internal thread, and the limiting disc drives the external thread disc to slide to the inside of the pipe body.

5. The freezing pipe for construction adjacent to existing line according to claim 4, characterized in that: The external thread disc and the internal thread ring are left hand threadedly connected, and the external thread disc is contacted and connected on the upper surface of the internal thread ring by rotating on the internal thread ring.

6. The freezing pipe for construction adjacent to existing line according to claim 1, characterized in that: The first external thread column and the internal thread cylinder are left hand threadedly connected, and the lengthening rod is provided with multiple groups, and the first external thread column on one group of lengthening rods is threadedly connected with the second external thread column on another group of lengthening rods.

7. The freezing pipe for construction adjacent to existing line according to claim 1, characterized in that: The plug -in rod is T-shaped, the diameter of the first through -hole and the second through -hole is same, and the plug -in rod can be perforated and connected on the first through -hole.

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