CN210358616U - F-shaped reinforced concrete pipe jacking bell mouth steel ring correction clamp - Google Patents

Abstract

The utility model discloses a pair of F-shaped reinforced concrete pipe jacking bellmouth steel ring correcting tongs, which comprises a correcting tong body for containing a steel plate at a deformed part and a correcting tong body for applying correcting force, wherein the correcting tong body is arranged at the front end of the correcting tong body, and the correcting tong body are of an integral structure; the correcting forceps body comprises a forceps body; the front end of the pliers body is provided with a jaw for containing a steel plate at a deformation part, and the front end of the pliers body is provided with a fixing part connected with the correcting pliers body; the correcting clamp body comprises a correcting rod, the correcting rod is of a hollow circular tube structure, and the fixing part is sleeved in the correcting rod. The utility model has the advantages of simple structure, the heat-conduction effect of having eliminated the harmful vibration that original correction method exists and bellmouth steel ring steel sheet transmits the damage of meeting water inflation adhesive tape with high temperature, has also avoided simultaneously effectively the destruction to pipe seal structure, has ensured the sealing performance of pipe connector.

Description

F-shaped reinforced concrete pipe jacking bell mouth steel ring correction clamp

Technical Field

The utility model relates to an automobile-used maintenance, repair the device field, especially relate to a pincers are corrected to F type reinforced concrete push pipe bellmouth steel loop.

Background

The reinforced concrete drain pipe (hereinafter referred to as DRCP pipe) for the jacking construction method is widely used for gravity flow pipelines such as rainwater, sewage, water diversion, farmland drainage and irrigation, and is also widely used in construction projects of underground pipe galleries of high-voltage power transmission and transformation lines such as 220KV in recent years. The installation of the concrete jacking pipe belongs to a trenchless jacking installation pipeline product, wherein the DRCP pipe with the F-shaped steel bellmouth flexible interface is most widely applied to daily underground trenchless jacking construction engineering.

In the production, storage, transportation and installation processes of the DRCP pipe with the flexible interface of the F-shaped steel bellmouth, collision often occurs due to careless operation, so that the local deformation of a steel bellmouth steel ring is often caused, the pipe cannot be normally installed, the qualified interface sealing cannot be obtained, the installation of a project is influenced, the sealing of a pipeline is unqualified, and the pipeline water leakage is formed, so that the deformed part needs to be corrected and restored timely, in the past, the restoration method is to correct the deformed steel bellmouth steel ring by adopting a traditional method such as a heavy hammer knocking method or a flame and heavy hammer knocking correction method, but the correction method has the following problems: 1) when the large-hammer knocking method is adopted for correction, because the thickness of the bellmouth steel ring is large, the deformed steel plate of the bellmouth steel ring can be corrected and restored only by needing very large knocking force, and because of the large knocking force, the bellmouth steel ring and the pipe body concrete often have an original sealing structure and are damaged; 2) when the flame method and the sledgehammer are used for knocking and correcting, due to the high temperature of flame and the heat conduction effect of the steel plate of the bell mouth steel ring, the water-swelling adhesive tape on the bell mouth steel ring is heated seriously to change the property of the water-swelling adhesive tape, so that the water-swelling function of the water-swelling adhesive tape is lost, and in addition, the sledgehammer knocking also can cause the looseness of the bell mouth steel ring and a contact part, so that the original sealing structure of the bell mouth steel ring and the concrete of the pipe body is damaged; finally causing water leakage at the pipeline interface; 3) usually, the nominal diameter of the DRCP pipe is large, the product body is large and heavy, the difficulty of repairing the bellmouth steel ring is greatly increased, the labor intensity is high, and the noise is high.

Disclosure of Invention

For solving the technical problem that proposes among the above-mentioned background art, the utility model provides a F type reinforced concrete push pipe bellmouth steel loop corrects pincers, has simple structure, has eliminated the harmful vibration that original correction method exists and the heat conduction of bellmouth steel loop steel sheet and has transmitted the damage of meeting water inflation adhesive tape with high temperature, has also avoided the destruction to pipe seal structure simultaneously effectively, has ensured advantages such as the sealing performance of pipe connector. In order to achieve the above object, the utility model provides a following technical scheme:

an F-shaped reinforced concrete pipe jacking bell steel ring correcting clamp comprises a correcting clamp body used for containing a steel plate at a deformed part and a correcting clamp body used for applying correcting force, wherein the correcting clamp body is arranged at the front end of the correcting clamp body, and the correcting clamp body are fixedly connected together;

the correcting forceps body comprises a forceps body; the front end of the pliers body is provided with a jaw for containing a steel plate at a deformation part, and the rear end of the pliers body is provided with a fixing part connected with the correcting pliers body;

the correcting clamp body comprises a correcting rod, the correcting rod is of a hollow circular tube structure, and the fixing part is sleeved in the correcting rod.

As the embodiment of the utility model discloses preferred, the opening size of keeping silent suits with the thickness of deformation steel sheet, and the opening size is 1-3mm bigger than the thickness of deformation steel sheet at least.

As the optimization of the embodiment of the utility model, the depth of the jaw is 4.0-5.0mm longer than the depth of the working surface of the steel ring of the socket.

Preferably, the fixing portion is detachably connected to the straightening rod.

As the utility model discloses the preferred, evenly be equipped with a plurality of round hole, each on the terminal outer periphery of fixed part all install spring plunger in the round hole, spring plunger's bulb is followed and is visited out in the round hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1) adopt F type reinforced concrete push pipe bellmouth steel loop correct pincers and correct deformation bellmouth steel loop, abandoned the sledgehammer strike method and in the flame method + sledgehammer strike method because of the sledgehammer strikes to the bellmouth steel loop, not had because of the violent vibrations of sledgehammer strike the vibration that produces the bellmouth steel loop to eliminated the vibration to bellmouth steel loop and peripheral concrete connection structure's destruction, eliminated the bellmouth steel loop and connected the possibility that produces the displacement between the concrete.

2) Adopt F type reinforced concrete push pipe bellmouth steel loop correct pincers and correct and warp bellmouth steel loop, overcome because of the nominal diameter of DRCP pipe is big, the product body is big heavy, to restoreing that warp bellmouth steel loop increased the prosthetic degree of difficulty, reduced intensity of labour and noise.

3) The utility model discloses an evenly be equipped with a plurality of round hole, each on the terminal outer periphery of fixed part all install spring plunger in the round hole to reach spring compression in the spring plunger when fixed part is installed and is corrected and realize correcting the pincers body and correct the even atress of pincers body and automatic positioning.

4) Adopt F type reinforced concrete push pipe bellmouth steel loop correct pincers and correct and warp bellmouth steel loop, be a quiet deformation process, keep silent the reverse pulling to the position steel sheet of warping through correcting, make the position steel sheet of warping appear reverse deformation, make it correct, reset, the harmful vibration that has eliminated original correction method existence and the heat conduction of bellmouth steel loop steel sheet effect with the high temperature transmission to the damage of meeting water inflation adhesive tape, even reached the correction at the position of warping, recover, the destruction to pipe seal structure has also been avoided effectively simultaneously, the sealing performance of pipe interface has been ensured.

Drawings

FIG. 1 is a schematic structural view of the F-shaped steel ring straightening pliers for the reinforced concrete pipe jacking and pipe belling of the present invention;

FIG. 2 is a schematic structural view of the corrective clamp body of the present invention;

fig. 3 is a schematic structural view of the correcting caliper body of the present invention;

fig. 4 is a schematic structural view of the end of the fixing portion of the present invention;

FIG. 5 is a view showing the usage state of the F-shaped steel ring correction pliers for the reinforced concrete pipe jacking and pipe receiving ports of the present invention.

Shown in the figure: 1. correcting the clamp body; 1.1, a clamp body; 1.2, clamping jaws; 1.3, a fixed part; 1.4, round holes; 1.5, a spring plunger; 2. correcting the caliper body; 2.1, a correcting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1 to 3, the embodiment of the utility model provides a pincers are corrected to F reinforced concrete push pipe bellmouth steel ring, including being used for correcting the pincers body 1 that the steel sheet (not marked in the figure) at deformation position live and being used for exerting the correction tongss 2 of correcting the power, will correct the pincers body 1 and install the front end at correction tongss 2, correct the pincers body 1 and correct tongss 2 fixed connection together.

Referring to fig. 1 to 2, the correcting forceps body 1 includes a forceps body 1.1, a jaw 1.2 for containing a steel plate at a deformed portion is disposed at a front end of the forceps body 1.1, and a fixing portion 1.3 connected to the correcting forceps body 2 is disposed at a rear end of the forceps body. In this embodiment, the caliper body 1.1 is made of a steel plate in building construction, the jaw 1.2 is in a long strip structure, the size of the opening of the jaw 1.2 is adapted to the thickness of the deformed steel plate, and the size of the opening is at least 1-3mm larger than the thickness of the deformed steel plate, and the deformed steel plate can be completely contained by placing the deformed steel plate into the jaw 1.2. Further, in this embodiment, a plurality of friction protrusions may be uniformly disposed on the inner wall of the jaw 1.2, so that the friction force with the steel plate at the deformed portion may be increased during the use process. Wherein the depth of the jaw 1.2 is 4.0-5.0mm longer than the depth of the working surface of the steel ring of the socket. In the present embodiment, the fixing portion 1.3 is welded to the rear end of the caliper body 1.1.

Referring to fig. 1 to 3, the straightening tong body 2 comprises a straightening rod 2.1, the straightening rod 2.1 is a hollow circular tube structure, and when in use, the fixing part 1.3 is sleeved in the straightening rod 2.1. The fixing part 1.3 is detachably connected with the correcting rod 2.1.

Example two:

referring to fig. 4, the difference between the second embodiment and the first embodiment is: a plurality of round holes 1.4 are uniformly arranged on the outer circumferential surface of the tail end of the fixing part 1.3 of the correcting clamp body 1, a spring plunger 1.5 is arranged in each round hole 1.4, and the ball head of the spring plunger 1.5 extends out of the round hole 1.4. In this embodiment, 8 circular holes 1.4 are uniformly distributed on the outer circumferential surface of the tail end of the fixing part 1.3, and a spring plunger 1.5 is installed in each circular hole 1.4, so that when the fixing part 1.3 is installed in the correcting rod 2.1, the spring compression in the spring plunger 1.5 realizes the uniform stress and automatic positioning of the correcting caliper body 1 and the correcting caliper body 2. Further optimization this embodiment, for transition fit between round hole 1.4 and spring plunger 1.5, like this, can be unlikely to dead with spring plunger 1.5 lock, conveniently change spring plunger 1.5.

Referring to fig. 5, in the present embodiment, a deformed DRCP type reinforced concrete drain pipe product is lifted up horizontally to make the deformed portion of the steel ring of the socket lowermost, the jaw 1.2 of the steel ring straightening pliers of the deformed socket is clamped at the deformed portion, the steel plate of the deformed portion is contained in the jaw 1.2, the axis of the jaw is perpendicular to the central axis of the pipe, the straightening rod 2.1 is sleeved on the fixing portion 1.3 of the straightening pliers body 1, the tail of the straightening rod 2.1 is held to apply force in the direction opposite to the deformation, the acting force applied to the jaw 1.2 exceeds the yield strength of the deformed steel plate by using the lever principle, the deformed steel ring plate of the socket is deformed reversely, and the deformed steel ring is corrected and restored; and then, continuously moving the correcting jaw 1.2 to the end face of the socket, repeating the operations 2 and 3 until the deformed steel plate is elastically deformed until the technical indexes of the socket steel ring, such as geometric dimension, form and position deviation, sealing performance and the like, meet the designed quality requirement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a pincers are corrected to F reinforced concrete push pipe bellmouth steel loop which characterized in that: the correcting clamp comprises a correcting clamp body (1) for containing a steel plate at a deformed part and a correcting clamp body (2) for applying correcting force, wherein the correcting clamp body (1) is arranged at the front end of the correcting clamp body (2), and the correcting clamp body (1) and the correcting clamp body (2) are fixedly connected together;

the correcting forceps body (1) comprises a forceps body (1.1); a jaw (1.2) for containing a steel plate at a deformation part is arranged at the front end of the clamp body (1.1), and a fixing part (1.3) connected with the correcting clamp body (2) is arranged at the rear end of the clamp body (1.1);

the straightening clamp body (2) comprises a straightening rod (2.1), the straightening rod (2.1) is of a hollow circular tube structure, and the fixing part (1.3) is sleeved in the straightening rod (2.1).

2. The F-shaped reinforced concrete push pipe and socket steel ring correcting tongs as claimed in claim 1, characterized in that: the size of the opening of the jaw (1.2) is adapted to the thickness of the deformed steel plate, and the size of the opening is at least 1-3mm larger than the thickness of the deformed steel plate.

3. The F-shaped reinforced concrete pipe jacking and pipe receiving steel ring straightening pliers as claimed in claim 1, wherein: the depth of the jaw (1.2) is 4-5mm longer than that of the working surface of the steel ring of the socket.

4. The F-shaped reinforced concrete pipe jacking and pipe receiving steel ring straightening pliers as claimed in claim 1, wherein: the fixing part (1.3) is detachably connected with the straightening rod (2.1).

5. The F-shaped reinforced concrete pipe jacking and pipe receiving steel ring straightening pliers as claimed in claim 1, wherein: evenly be equipped with a plurality of round hole (1.4) on the outer periphery at fixed part (1.3) end, each all install spring plunger (1.5) in round hole (1.4), the bulb of spring plunger (1.5) is followed round hole (1.4) and is visited out.

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