Hole protection device for pipe jacking construction

Abstract

The utility model discloses a hole protection device for pipe jacking construction, and relates to the technical field of pipe jacking construction, the hole protection device comprises an outer cylinder and an inner cylinder, the inner cylinder is arranged in the outer cylinder, threads are arranged on the outer side of the inner cylinder, a movable sleeve is screwed outside the inner cylinder through threads, a plurality of connecting rods are hinged to the outer side of the movable sleeve at equal intervals, and the connecting rods are connected with the inner cylinder through threads. A plurality of positioning plates are arranged on the outer side of the outer barrel, the ends, away from the moving sleeve, of the connecting rods are hinged to the inner sides of the positioning plates correspondingly, and the hole protection device for pipe jacking construction further comprises a driving mechanism used for driving the inner barrel to rotate. According to the hole protection device for pipe jacking construction, a hole can be rapidly protected and supported, operation is convenient and rapid, under the work of a servo motor, holes of different sizes can be protected, the application range of the device is widened, and pipe jacking construction operation can be conveniently conducted on the holes of different sizes by constructors.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, in particular to a hole opening protection device for pipe jacking construction. Background Art

[0002] During the pipe jacking construction process, since it is necessary to cross various obstacles and underground pipelines, corresponding measures need to be taken to protect the hole opening to prevent objects from falling or people from falling during the construction process.

[0003] Traditional opening protection devices are usually made of materials such as steel mesh, steel wire rope, and baffles, but these devices are often inconvenient to install and can only maintain openings of a single size. Therefore, it is necessary to develop a device that is easy to install and can protect openings of different sizes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a hole opening protection device for pipe jacking construction, which solves the problems that the traditional hole opening protection device is inconvenient to install and can only maintain holes of a single size.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a hole opening protection device for jacking pipe construction, including an outer cylinder and an inner cylinder, the inner cylinder is arranged in the outer cylinder, and the outer side of the inner cylinder is provided with threaded teeth, the outer side of the inner cylinder is screwed with a movable sleeve through a thread, and the outer side of the movable sleeve is hinged with a plurality of connecting rods at equal distances, and the outer side of the outer cylinder is provided with a plurality of positioning plates, and one end of each connecting rod away from the movable sleeve is respectively hinged to the inner side of each positioning plate, and the hole opening protection device for jacking pipe construction also includes a driving mechanism for driving the inner cylinder to rotate.

[0006] Preferably, the positioning plate is in an arc shape, and the arc surface is arranged in a direction away from the outer cylinder.

[0007] Preferably, the driving mechanism includes a limit seat arranged at the inner edge of one end of the outer cylinder and a gear sleeve arranged at the outer edge of one end of the inner cylinder, a servo motor is installed on one side of the limit seat, the output shaft of the servo motor is connected to the main gear, and the main gear is meshed with the gear sleeve.

[0008] Preferably, the outer wall of the outer cylinder is provided with limiting grooves corresponding to the respective connecting rods, and one end of the connecting rod away from the movable sleeve slides through the inside of the limiting groove.

[0009] Preferably, two guide shafts are symmetrically arranged at the outer edges of both ends of the inner cylinder, and annular grooves are arranged on the inner walls of both ends of the outer cylinder. The end of the guide shaft away from the inner cylinder is slidably arranged in the annular groove.

[0010] Preferably, two mounting bars are symmetrically arranged at the outer edge of one end of the outer cylinder, and the mounting bars are fixedly connected to the rock wall outside the cave entrance by positioning bolts.

[0011] The utility model provides a hole protection device for pipe jacking construction, which has the following beneficial effects compared with the prior art:

[0012] The hole protection device for pipe jacking construction can quickly protect and support the hole, is easy and quick to operate, and under the operation of the servo motor, can protect holes of different sizes, thereby improving the application scope of the device and facilitating construction personnel to perform pipe jacking operations on holes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the inner cylinder of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the outer cylinder of the utility model.

[0016] In the figure: 1, outer cylinder; 101, limit groove; 102, annular groove; 103, mounting strip; 104, positioning bolt; 2, inner cylinder; 21, guide shaft; 3, threaded tooth; 4, movable sleeve; 5, connecting rod; 6, positioning plate; 7, driving mechanism; 71, gear sleeve; 72, limit seat; 73, servo motor; 74, main gear. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 In an embodiment of the utility model, a hole opening protection device for pipe jacking construction includes an outer tube 1 and an inner tube 2, the inner tube 2 is arranged in the outer tube 1, and the outer side of the inner tube 2 is provided with a threaded tooth 3, the outer side of the inner tube 2 is screwed with a movable sleeve 4 through a thread, and the outer side of the movable sleeve 4 is hinged with a plurality of connecting rods 5 at equal distances, and the outer side of the outer tube 1 is provided with a plurality of positioning plates 6, and one end of each connecting rod 5 away from the movable sleeve 4 is respectively hinged to the inner side of each positioning plate 6, and the hole opening protection device for pipe jacking construction also includes a driving mechanism 7 for driving the inner tube 2 to rotate.

[0019] In the above scheme: insert the outer tube 1 into the hole, the driving mechanism 7 drives the inner tube 2 to rotate, the thread teeth 3 on the inner tube 2 will drive the moving sleeve 4 to move, and the moving sleeve 4 will make the connecting rod 5 drive the positioning plate 6 to move, so that each positioning plate 6 is opened to support the inner wall of the hole. By adjusting the opening distance between each positioning plate 6, holes of different sizes can be supported. After the support is completed, the pipe jacking operation can be carried out.

[0020] See also Figure 3 In the embodiment of the utility model, the positioning plate 6 is in an arc shape, and the arc surface is arranged in a direction away from the outer tube 1. The arc shape is adapted to the inner wall of the hole, so as to facilitate supporting the inner wall of the hole.

[0021] See also Figure 1 In the embodiment of the utility model, the driving mechanism 7 includes a limit seat 72 arranged at the inner edge of one end of the outer cylinder 1 and a gear sleeve 71 arranged at the outer edge of one end of the inner cylinder 2. A servo motor 73 is installed on one side of the limit seat 72. The output shaft of the servo motor 73 is connected to a main gear 74. The main gear 74 is meshed with the gear sleeve 71. When the servo motor 73 works, the servo motor 73 drives the main gear 74 to rotate, and the main gear 74 drives the gear sleeve 71 meshed with it to rotate, and the gear sleeve 71 will drive the inner cylinder 2 to rotate.

[0022] See also Figure 1 and Figure 3 In the embodiment of the utility model, the outer wall of the outer cylinder 1 is provided with a limiting groove 101 corresponding to each connecting rod 5. The end of the connecting rod 5 away from the movable sleeve 4 slides through the inside of the limiting groove 101. When the connecting rod 5 moves, it will slide in the limiting groove 101, which plays a role of limiting and guiding the connecting rod 5.

[0023] See also Figure 1 In the embodiment of the utility model, two guide shafts 21 are symmetrically arranged at the outer edges of both ends of the inner cylinder 2, and annular grooves 102 are arranged on the inner walls of both ends of the outer cylinder 1. The end of the guide shaft 21 away from the inner cylinder 2 is slidably arranged in the annular groove 102. When the inner cylinder 2 rotates, the guide shaft 21 slides in the annular groove 102, which plays a role in positioning and guiding the inner cylinder 2.

[0024] See also Figure 1 In the embodiment of the utility model, two mounting strips 103 are symmetrically arranged at the outer edge of one end of the outer cylinder 1, and the mounting strip 103 is fixedly connected to the rock wall outside the cave entrance by positioning bolts 104. The outer cylinder 1 is inserted into the cave entrance, and then the mounting strip 103 is fixed to the rock wall outside the cave entrance by positioning bolts 104 to fix the outer cylinder 1.

[0025] Working principle: insert the outer cylinder 1 into the hole, and then fix the mounting strip 103 to the rock wall outside the hole through the positioning bolt 104. After fixing, start the servo motor 73, and the servo motor 73 drives the main gear 74 to rotate. The main gear 74 drives the gear sleeve 71 meshing with it to rotate, and the gear sleeve 71 will drive the inner cylinder 2 to rotate. The threaded teeth 3 on the inner cylinder 2 will drive the movable sleeve 4 to move. The movable sleeve 4 will drive the connecting rod 5 to drive the positioning plate 6 to move, so that each positioning plate 6 opens to support the inner wall of the hole. By adjusting the opening distance between each positioning plate 6, holes of different sizes can be supported. After support, the jacking operation can be carried out.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A hole protection device for pipe jacking construction, comprising an outer tube (1) and an inner tube (2), characterized in that: The inner cylinder (2) is arranged in the outer cylinder (1), and the outer side of the inner cylinder (2) is provided with a threaded tooth (3), the outer side of the inner cylinder (2) is screwed with a movable sleeve (4) through a thread, and the outer side of the movable sleeve (4) is hinged with a plurality of connecting rods (5) at equal distances; A plurality of positioning plates (6) are arranged on the outer side of the outer cylinder (1), and one end of each connecting rod (5) away from the movable sleeve (4) is hinged to the inner side of each positioning plate (6); The hole protection device for pipe jacking construction also includes a driving mechanism (7) for driving the inner tube (2) to rotate.

2. The hole protection device for pipe jacking construction according to claim 1 is characterized in that: The positioning plate (6) is in an arc shape, and the arc surface is arranged in a direction away from the outer cylinder (1).

3. The hole protection device for pipe jacking construction according to claim 1 is characterized in that: The driving mechanism (7) comprises a limit seat (72) arranged at the inner edge of one end of the outer cylinder (1) and a gear sleeve (71) arranged at the outer edge of one end of the inner cylinder (2); a servo motor (73) is installed on one side of the limit seat (72); an output shaft of the servo motor (73) is connected to a main gear (74); and the main gear (74) is meshed with the gear sleeve (71).

4. The hole protection device for pipe jacking construction according to claim 1 is characterized in that: The outer wall of the outer cylinder (1) is provided with a limiting groove (101) corresponding to each connecting rod (5); One end of the connecting rod (5) away from the movable sleeve (4) slides through the interior of the limiting groove (101).

5. The hole protection device for pipe jacking construction according to claim 3 is characterized by: Two guide shafts (21) are symmetrically arranged at the outer edges of both ends of the inner cylinder (2); An annular groove (102) is provided on the inner walls at both ends of the outer cylinder (1), and the end of the guide shaft (21) away from the inner cylinder (2) is slidably disposed in the annular groove (102).

6. The hole protection device for pipe jacking construction according to claim 1 is characterized in that: Two mounting strips (103) are symmetrically arranged at the outer edge of one end of the outer cylinder (1), and the mounting strips (103) are fixedly connected to the rock wall outside the cave entrance via positioning bolts (104).

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