Sand blowing lifting ring mounting structure used between sleeve and inner penetrating pipe

Abstract

The utility model provides a sand blowing lifting ring mounting structure used between a sleeve and an inner penetrating pipe, which comprises a T-shaped block, a sand blowing lifting ring and a sand blowing lifting ring, the sealing gaskets are mounted on the two sides of the T-shaped block; and the wood backing rings are installed between the adjacent concrete casing pipes, positioning grooves matched with the T-shaped blocks are formed in the wood backing rings, and the T-shaped blocks are installed on the inner sides of the positioning grooves. The sand blowing pipe has the advantages that the T-shaped block and the mounting ring are mounted on the wood backing ring, the sand blowing pipe penetrates through the mounting ring, the stability of the sand blowing pipe is guaranteed, compared with laying of a sliding device, the mounting process is convenient, the working efficiency is improved, and the sealing performance is improved by arranging the sealing gaskets on the two sides of the T-shaped block.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe jacking construction, in particular to a sand blowing hanging ring installation structure used between a casing and an inner penetration pipe. Background Art

[0002] In the process of urban underground pipeline construction, it is inevitable to involve excavation methods such as pipe jacking, underground excavation, pipe pulling, and support excavation. However, the dense and complex underground obstacles will cause difficulties for underground pipeline construction. When the pipe jacking construction crosses roads, railways and existing buildings, the project generally sets up a protective casing, and then lays the working pipeline in the casing. In order to ensure the stability of the working pipeline in the casing, it is necessary to fill the medium sand between the casing and the inner pipe. The conventional practice is to pre-set the pipes between the outer casing and the inner pipe in advance, but it cannot guarantee uniform filling. The more advanced sand blowing device sets the sand blowing pipeline sliding device on the top of the casing. Although it can be filled evenly, in the actual construction process, it is often limited by the underground space in the city. The clearance between the outer casing and the inner pipe is small, and there is no space for the sand blowing pipeline sliding device to operate, and the installation process is complicated. In addition, the complicated recovery of the sand blowing pipeline sliding device also leads to low construction efficiency. Utility Model Content

[0003] In view of this, the utility model aims to provide a sand blowing lifting ring installation structure used between a casing and an inner pipe, in order to solve at least one of the above-mentioned technical problems.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A sand blowing lifting ring installation structure used between a casing and an inner pipe, comprising:

[0006] A T-shaped block, wherein a mounting ring is provided at the lower end of the vertical rod of the T-shaped block;

[0007] Sealing gaskets, which are installed on both sides of the T-shaped block;

[0008] The wooden gasket is installed between adjacent concrete sleeves. A positioning groove matching the T-shaped block is formed on the wooden gasket. The T-shaped block is installed on the inner side of the positioning groove.

[0009] Furthermore, the lower end of the mounting ring is a V-shaped plate, and support rollers are provided on the two inclined plates of the V-shaped plate. The support rollers are rotatably connected to the inclined plates, and the axes of the support rollers are perpendicularly arranged to the axis of the mounting ring.

[0010] Furthermore, a connecting plate is fixedly provided at the lower end of the T-shaped block, the connecting plate is arranged parallel to the transverse plate of the T-shaped block, a connecting block is fixedly provided at the upper end of the mounting ring, a T-shaped slot matching the connecting plate is opened on the connecting block, and the connecting plate is installed on the inner side of the T-shaped slot;

[0011] The mounting ring is detachably connected to the T-shaped block via a connecting block.

[0012] Furthermore, a limiting hole is formed on the connecting plate, a through hole corresponding to the limiting hole is formed on the connecting block, a limiting pin is provided in the through hole, and the limiting pin passes through the through hole and is inserted into the inner side of the limiting hole.

[0013] Furthermore, a guide groove corresponding to the through hole is formed on the connecting block, an annular boss is fixedly provided on the outer wall of the limit pin, the diameter of the annular boss matches the inner diameter of the guide groove, the annular boss is installed on the inner side of the guide groove, a retaining ring is fixedly provided on the inner side of the opening of the guide groove, the inner diameter of the retaining ring matches the diameter of the limit pin, and a compression spring is provided between the retaining ring and the bottom end of the guide groove.

[0014] Furthermore, the limiting pin protrudes out of the side wall of the connecting block, and a disc is fixedly provided at one end of the limiting pin away from the connecting plate.

[0015] Further, a driving block is fixedly provided on the connecting block, and a strip-shaped through hole is opened on the driving block, which corresponds to the protrusion of the limiting pin from the side wall of the connecting block, and a notch is opened at one end of the strip-shaped through hole away from the limiting pin, and the width of the strip-shaped through hole matches the diameter of the limiting pin, and the strip-shaped through hole is arranged along the axial direction of the mounting ring;

[0016] The outer side surface of one end of the driving block away from the limiting pin is an inclined surface, and the inclined surface corresponds to the position of the strip-shaped through hole.

[0017] Furthermore, an extension plate is fixedly provided at one end of the driving block away from the limiting pin, and the thickness of the extension plate is less than the length of the limiting pin protruding from the side wall of the connecting block.

[0018] Compared with the prior art, the sand blowing lifting ring installation structure used between the casing and the inner pipe described in the utility model has the following beneficial effects:

[0019] (1) The utility model discloses a sand blasting ring installation structure for use between a casing and an inner tube. By installing a T-shaped block and a mounting ring on a wooden pad ring, the sand blasting tube passes through the mounting ring, thereby ensuring the stability of the sand blasting tube. Compared with laying a sliding device, the installation process is convenient and the work efficiency is improved. The sealing performance is improved by arranging sealing pads on both sides of the T-shaped block.

[0020] (2) The utility model discloses a sand-blowing lifting ring installation structure for use between a casing and an inner tube. When the installation ring is recovered, the limit pin is driven by the driving block to move in a direction away from the connecting plate. As the limit pin is separated from the limit hole, the front installation ring is pressed against the rear installation ring to separate from the T-block. The recovery of the installation ring reduces the use cost of the installation ring and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the lifting ring installation structure according to an embodiment of the utility model;

[0023] Figure 2 For the embodiment of the utility model Figure 1 Schematic diagram of the structure at B in the middle;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting ring according to an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the T-shaped block according to an embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the lifting ring installation structure in the embodiment of the utility model in use;

[0027] Figure 6 It is a schematic cross-sectional structure diagram of the lifting ring installation structure in use state according to an embodiment of the utility model;

[0028] Figure 7 This is a schematic diagram of the cross-sectional structure of the limit pin according to an embodiment of the utility model;

[0029] Figure 8 For the embodiment of the utility model Figure 7 Schematic diagram of the structure at point A in the middle.

[0030] Description of reference numerals:

[0031] 1. Wooden washer; 2. Sealing gasket; 3. T-shaped block; 4. Mounting ring; 5. Support roller; 6. Driving block; 7. Limit pin; 8. Retaining ring; 9. Compression spring; 301. Connecting plate; 302. Limiting hole; 401. V-shaped plate; 402. Connecting block; 40201. T-shaped slot; 40202. Guide slot; 601. Strip through hole; 602. Extension plate; 603. Inclined surface; 701. Annular boss; 702. Disc. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] like Figures 1 to 8 As shown, a sand blowing ring installation structure used between a casing and an inner pipe comprises:

[0037] A T-shaped block 3, a mounting ring 4 is provided at the lower end of the vertical rod of the T-shaped block 3;

[0038] Sealing gasket 2, which is installed on both sides of the T-shaped block 3;

[0039] A wooden washer 1 is installed between adjacent concrete sleeves. A positioning groove matching a T-shaped block 3 is provided on the wooden washer 1. The T-shaped block 3 is installed on the inner side of the positioning groove.

[0040] By installing the T-block 3 and the mounting ring 4 on the wooden pad ring 1, the sand blasting pipe passes through the mounting ring 4, which ensures the stability of the sand blasting pipe. Compared with laying the sliding device, the installation process is convenient and the work efficiency is improved. The sealing performance is improved by setting the sealing pads 2 on both sides of the T-block 3.

[0041] The lower end of the installation is a V-shaped plate 401, and support rollers 5 are arranged on the two inclined plates of the V-shaped plate 401. The support rollers 5 are rotatably connected with the inclined plates, and the axes of the support rollers 5 are arranged perpendicular to the axis of the mounting ring 4. The support rollers 5 reduce the friction between the sand blasting tube and the mounting ring 4, extend the service life of the sand blasting tube, and also facilitate the movement of the sand blasting tube.

[0042] A connecting plate 301 is fixedly provided at the lower end of the T-shaped block 3, and the connecting plate 301 is arranged parallel to the horizontal plate of the T-shaped block 3. A connecting block 402 is fixedly provided at the upper end of the mounting ring 4, and a T-shaped groove 40201 matching the connecting plate 301 is opened on the connecting block 402, and the connecting plate 301 is installed on the inner side of the T-shaped groove 40201; the mounting ring 4 is detachably connected to the T-shaped block 3 through the connecting block 402.

[0043] The connection plate 301 is provided with a limit hole 302, and the connection block 402 is provided with a through hole corresponding to the limit hole 302. The through hole is provided with a limit pin 7, and the limit pin 7 passes through the through hole and is inserted into the inner side of the limit hole 302. The installation process of the mounting ring 4 is convenient.

[0044] A guide groove 40202 corresponding to the through hole is formed on the connecting block 402, an annular boss 701 is fixedly provided on the outer wall of the limit pin 7, the diameter of the annular boss 701 matches the inner diameter of the guide groove 40202, the annular boss 701 is installed on the inner side of the guide groove 40202, a retaining ring 8 is fixedly provided on the inner side of the opening of the guide groove 40202, the inner diameter of the retaining ring 8 matches the diameter of the limit pin 7, and a compression spring 9 is provided between the retaining ring 8 and the bottom end of the guide groove 40202.

[0045] The limiting pin 7 protrudes out of the side wall of the connecting block 402 , and a disc 702 is fixedly arranged at one end of the limiting pin 7 away from the connecting plate 301 , so that the disc 702 is convenient for manually moving the limiting pin 7 .

[0046] The connecting block 402 is fixed with a driving block 6, and a strip-shaped through hole 601 is provided on the driving block 6, which corresponds to the side wall of the limiting pin 7 protruding from the connecting block 402. A notch is provided at one end of the strip-shaped through hole 601 away from the limiting pin 7, and the width of the strip-shaped through hole 601 matches the diameter of the limiting pin 7. The strip-shaped through hole 601 is arranged along the axis direction of the mounting ring 4; the outer side surface of one end of the driving block 6 away from the limiting pin 7 is an inclined surface 603, and the inclined surface 603 corresponds to the position of the strip-shaped through hole 601. An extension plate 602 is fixed at one end of the driving block 6 away from the limiting pin 7, and the thickness of the extension plate 602 is less than the length of the limiting pin 7 protruding from the side wall of the connecting block 402.

[0047] During the installation process of the mounting tube, the limit pin 7 is moved outward, the compression spring 9 is compressed, and the connecting plate 301 is aligned with the T-slot 40201 and inserted. When the limit pin 7 is aligned with the limit hole 302, the limit pin 7 is inserted into the limit hole 302 under the elastic force of the compression spring 9. When the mounting ring 4 is removed, the sand outlet of the sand blowing tube is connected to the frontmost mounting ring 4. When the sand blowing tube moves back, it drives the frontmost mounting ring 4 to move. The strip through hole 601 of the driving block 6 on the front mounting ring 4 is inserted into the outside of the limit groove. Under the guidance of the inclined surface 603, the limit pin 7 moves in the direction away from the connecting plate 301. As the limit pin 7 disengages from the limit hole 302, the front mounting ring 4 presses against the rear mounting ring 4 to disengage from the T-block 3. Recycling the mounting ring 4 reduces the use cost of the mounting ring 4 and improves work efficiency.

[0048] Working process:

[0049] First, the first section of the concrete casing pipe is pushed forward. When it is pushed forward to a certain position, the first section of the pipe is hoisted onto the jacking rail. Before the second section of the pipe is pushed forward, the sand blowing ring is installed and tightened with the first section of the pipe. The operation is as follows: Use the measuring tool to find the position directly above the wooden pad ring 1 of the second section of the pipe, and open a hole according to the size of the sand blowing T-block 3 to form a positioning groove, and then install the T-block 3. After that, the jacking cylinder is used to tighten the second section of the pipe to the first section of the pipe. In this way, the first sand blowing ring is installed. During the sand blowing operation, the sand blowing pipe passes through the inner sides of multiple installation rings 4 at a time.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand blowing ring installation structure used between a casing and an inner pipe, characterized in that: include: A T-shaped block (3), wherein a mounting ring (4) is provided at the lower end of the vertical rod of the T-shaped block (3); A sealing gasket (2), wherein the sealing gasket (2) is installed on both sides of the T-shaped block (3); A wooden gasket (1) is installed between adjacent concrete sleeves. A positioning groove matching a T-shaped block (3) is formed on the wooden gasket (1). The T-shaped block (3) is installed on the inner side of the positioning groove.

2. A sand blowing lifting ring installation structure used between a casing and an inner pipe according to claim 1, characterized in that: The lower end of the mounting ring is a V-shaped plate (401), and support rollers (5) are provided on the two inclined plates of the V-shaped plate (401). The support rollers (5) are rotatably connected to the inclined plates, and the axes of the support rollers (5) are arranged perpendicular to the axis of the mounting ring (4).

3. The sand blowing lifting ring installation structure used between the casing and the inner pipe according to claim 1, characterized in that: A connecting plate (301) is fixedly provided at the lower end of the T-shaped block (3), and the connecting plate (301) is arranged parallel to the transverse plate of the T-shaped block (3). A connecting block (402) is fixedly provided at the upper end of the mounting ring (4), and a T-shaped groove (40201) matching the connecting plate (301) is formed on the connecting block (402), and the connecting plate (301) is installed on the inner side of the T-shaped groove (40201); The mounting ring (4) is detachably connected to the T-shaped block (3) via a connecting block (402).

4. A sand blowing lifting ring installation structure used between a casing and an inner pipe according to claim 3, characterized in that: The connection plate (301) is provided with a limiting hole (302), the connection block (402) is provided with a through hole corresponding to the limiting hole (302), a limiting pin (7) is provided in the through hole, and the limiting pin (7) passes through the through hole and is inserted into the inner side of the limiting hole (302).

5. A sand blowing lifting ring installation structure used between a casing and an inner pipe according to claim 4, characterized in that: The connecting block (402) is provided with a guide groove (40202) corresponding to the through hole, and an annular boss (701) is fixedly provided on the outer wall of the limit pin (7), and the diameter of the annular boss (701) matches the inner diameter of the guide groove (40202). The annular boss (701) is installed on the inner side of the guide groove (40202), and a retaining ring (8) is fixedly provided on the inner side of the opening of the guide groove (40202), and the inner diameter of the retaining ring (8) matches the diameter of the limit pin (7), and a compression spring (9) is provided between the retaining ring (8) and the bottom end of the guide groove (40202).

6. A sand blowing lifting ring installation structure used between a casing and an inner pipe according to claim 5, characterized in that: The limiting pin (7) protrudes from the side wall of the connecting block (402), and a disc (702) is fixedly provided at one end of the limiting pin (7) away from the connecting plate (301).

7. A sand blowing lifting ring installation structure used between a casing and an inner pipe according to claim 6, characterized in that: The connecting block (402) is fixedly provided with a driving block (6), the driving block (6) is provided with a strip-shaped through hole (601) corresponding to the protrusion of the limiting pin (7) from the side wall of the connecting block (402), the strip-shaped through hole (601) is provided with a notch at one end away from the limiting pin (7), the width of the strip-shaped through hole (601) matches the diameter of the limiting pin (7), and the strip-shaped through hole (601) is arranged along the axial direction of the mounting ring (4); The outer side surface of one end of the driving block (6) away from the limiting pin (7) is an inclined surface (603), and the position of the inclined surface (603) corresponds to the position of the strip-shaped through hole (601).

8. The sand blowing lifting ring installation structure used between the casing and the inner pipe according to claim 7, characterized in that: An extension plate (602) is fixedly provided at one end of the driving block (6) away from the limiting pin (7), and the thickness of the extension plate (602) is less than the length of the limiting pin (7) protruding from the side wall of the connecting block (402).

Images