Combined top iron of rectangular top pipe

Abstract

The application discloses a combined top iron of a rectangular top pipe, which comprises four basic top iron blocks, the basic top iron blocks are trapezoidal, the four basic top iron blocks are arranged in the positions of the four sides of a rectangle, two adjacent basic top iron blocks are detachably connected through a corner connecting block, a quick release device is arranged in the cavity in the middle of the basic top iron block, a plurality of connecting rods are symmetrically arranged at the two ends of the quick release device, the connecting rods are slidably arranged in the cavity of the basic top iron block, one end of the connecting rod is connected with the quick release device, and the other end of the connecting rod extends out of the end surface of the basic top iron block; and a plurality of connecting grooves for the insertion of the connecting rods are arranged on the corner connecting block. The application aims to provide a combined top iron of a top pipe, which is controllable in overall quality, convenient to assemble and short in construction period.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering, and more particularly to a combined jacking iron for rectangular jacking pipes. Background Technology

[0002] Pipe jacking (also known as pipe jacking method) is a trenchless construction technique. The working principle involves using the jacking force of the main hydraulic cylinder in a pipe jacking machine to cut through the soil layer in front. The soil is then removed by a chuck, and as the pipe sections advance, the jacking section is completed. Pipe jacking machines are typically equipped with hydraulic jacks to propel the pipe forward. During the jacking process, the machine needs to overcome the resistance of the geological layers, applying sufficient pressure through the hydraulic jacks to ensure stable advancement. A jacking block is installed at the front end of the pipe jacking machine. This block acts as a buffer and balance between the jacking devices and the pipe segments, allowing the jacking force to be transmitted more evenly to the segments. This prevents localized stress concentration in the pipe segments during advancement, thus avoiding pipe section damage and improving the construction quality and efficiency of pipe jacking.

[0003] In existing technologies, due to the large weight and volume of the top iron, its transportation and installation are key issues that need to be addressed in pipe jacking construction. Patent CN201920864249.5 proposes a modular rectangular top iron, which can be assembled by moving steel columns, multiple sets of fixed steel columns, and bolts to fix the left and right top iron pieces. However, the structure disclosed in this patent has the drawbacks of an excessively large overall structure and weight of the top iron, and the inconvenience of disassembly and assembly via screws. This leads to safety hazards and a long construction period. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a combined jacking iron for rectangular jacking pipes that has controllable overall quality, is easy to assemble, and has a short construction period.

[0005] Technical Solution: The present invention discloses a combined jacking iron for rectangular jacking pipes, comprising four basic jacking iron blocks, each trapezoidal in shape, arranged along the four sides of a rectangle. Adjacent jacking iron blocks are detachably connected via corner connecting blocks. A quick-release device is installed in the cavity in the middle of each jacking iron block. Several connecting rods are symmetrically arranged at both ends of the quick-release device. The connecting rods are slidably disposed within the cavity of the jacking iron block. One end of the connecting rod is connected to the quick-release device, and the other end extends out of the inclined end face of the jacking iron block. Several connecting slots for inserting the connecting rods are provided on the corner connecting blocks.

[0006] Furthermore, the base top iron block includes a base lock cylinder groove, and the quick-release device includes a spherical lock cylinder body, which is rotatably disposed in the base lock cylinder groove, and the lock cylinder body is connected to the connecting rods on both sides respectively.

[0007] Furthermore, a locking operation handle is fixedly provided on the main body of the lock cylinder, and a basic locking groove is provided on the base top iron block for the locking operation handle to extend out.

[0008] Furthermore, the lock cylinder body contains several sets of reset springs, one end of which is fixedly connected to the locking operation handle. The lock cylinder body also contains several reset plates for rotating and pressing the reset springs. The base top iron block is provided with a base locking groove for limiting and locking the operation handle.

[0009] Furthermore, it also includes several extended top iron blocks, which are detachably connected to the left or right end of the base top iron block to increase the volume of the top iron. The extended top iron block is parallelogram-shaped, with an extended inclined surface at one end for connecting to the base top iron block or the extended top iron block, and a connecting inclined surface at the other end for connecting to the corner connecting block or the extended top iron block. The angles of the extended inclined surface and the connecting inclined surface correspond to the angles of the two inclined surfaces at the ends of the base top iron block, respectively. Several connecting rods are slidably arranged in the cavity of the extended top iron block, with one end of each connecting rod extending out of the connecting inclined surface. A quick-release device is provided in the cavity of the extended top iron block, and the quick-release device is connected to the other end of the connecting rod. Several connecting auxiliary rods are fixedly arranged on the connecting inclined surface. Several extension slots for inserting connecting rods and several extension auxiliary holes for inserting connecting auxiliary rods are provided on the extended inclined surface.

[0010] Furthermore, the extended top iron block includes an extended lock cylinder groove, and the quick-release device includes a spherical lock cylinder body, which is rotatably disposed within the extended lock cylinder groove, and the lock cylinder body is connected to connecting rods on both sides respectively.

[0011] Furthermore, a locking operation handle is fixedly provided on the main body of the lock cylinder, and an extension locking groove is provided on the extension top iron block for extending the locking operation handle.

[0012] Furthermore, the lock cylinder body contains several sets of reset springs, one end of which is fixedly connected to the locking operation handle. The lock cylinder body also contains several reset plates for rotating and pressing the reset springs. The extended top block is provided with an extended locking groove for limiting and locking the operation handle.

[0013] Furthermore, the cross-sections of the basic locking groove and the extended locking groove are arc-shaped, and the cross-section of the reset spring is arc-shaped.

[0014] Furthermore, several connecting auxiliary rods are fixedly installed on the inclined surfaces at both ends of the foundation top iron block, and connecting auxiliary holes for inserting the connecting auxiliary rods are provided on the corner connecting block.

[0015] Furthermore, the connecting rod includes a first connecting rod and a second connecting rod, wherein the first connecting rod is connected to the second connecting rod via a connecting spring.

[0016] Furthermore, the foundation top iron block is in the shape of an isosceles trapezoid.

[0017] Beneficial Effects: Compared with the prior art, the present invention has the following significant advantages: 1. The present invention disassembles the top iron into four basic top iron blocks and several extension top iron blocks. The specifications and quantity of the basic top iron blocks and extension top iron blocks are designed as needed. When the basic top iron blocks and extension top iron blocks are in the disassembled state, the individual weight is relatively small, which is convenient for transportation, but the combined structure meets the construction requirements; 2. In the present invention, the basic top iron blocks and extension top iron blocks are detachably connected by inserting connecting rods into the corresponding connecting grooves. When disassembly is required, the protruding locking operating handle is disengaged from the corresponding basic locking groove or extension basic locking groove. Under the action of the reset spring, the connecting rod is reset, and the connecting rod pushes out the corresponding inclined surface to achieve quick disassembly. Therefore, the present invention is more convenient to assemble and disassemble than using screws, and can shorten the construction cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the foundation top iron block in this invention.

[0020] Figure 3 This is a half-sectional schematic diagram of the foundation top iron block in this invention.

[0021] Figure 4 This is a schematic diagram of the extended top iron block in this invention.

[0022] Figure 5 This is a half-sectional schematic diagram of the extended top iron block in this invention.

[0023] Figure 6 This is a schematic diagram of the quick-release device in this invention.

[0024] Figure 7 This is a schematic diagram of the main body of the lock cylinder in this invention.

[0025] Figure 8 This is a schematic diagram of the corner connecting block in this invention.

[0026] Figure 9 This is a schematic diagram of the combination of the basic top iron block and the two extended top iron blocks in this invention.

[0027] The components are as follows: 1. Base top iron block; 101. Connecting auxiliary rod; 102. Connecting first rod; 103. Connecting spring; 104. Connecting second rod; 2. Extension top iron block; 201. Extension groove; 202. Extension auxiliary hole; 203. Extension inclined surface; 204. Connecting inclined surface; 3. Corner connecting block; 301. Connecting groove; 302. Connecting auxiliary hole; 4. Lock cylinder body; 401. Locking operating handle; 402. Reset spring; 403. Reset plate. Detailed Implementation

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings. Example 1

[0029] See appendix Figures 1 to 8 The present invention discloses a combined jacking iron for rectangular jacking pipe, comprising four basic jacking iron blocks 1 and two extended jacking iron blocks 2. The basic jacking iron blocks 1 are in the shape of an isosceles trapezoid. The four basic jacking iron blocks 1 are arranged in the position of the four sides of a rectangle. The inclined surface of any one end of the upper and lower two basic jacking iron blocks 1 is detachably connected to the extended jacking iron block 2. After being arranged in a rectangle, adjacent two basic jacking iron blocks 1 and adjacent basic jacking iron blocks 1 and extended jacking iron blocks 2 are detachably connected by corner connecting blocks 3.

[0030] The base top block 1 includes a base lock cylinder groove. The quick-release device includes a spherical lock cylinder body 4, which is rotatably mounted in the base lock cylinder groove. The lock cylinder body 4 is connected to three connecting rods on both sides, and the connecting rods are slidably mounted in the cavity of the base top block 1. A locking operation handle 401 is fixedly mounted on the lock cylinder body 4. The base top block 1 has a base locking groove for the locking operation handle 401 to extend. Several sets of reset springs 402 are located inside the lock cylinder body 4. One end of the reset spring 402 is fixedly connected to the locking operation handle 401. Several reset plates 403 for rotating and pressing the reset springs 402 are also provided inside the lock cylinder body 4. A base locking groove for limiting and locking the locking operation handle 401 is provided on the base top block 1.

[0031] The connecting rod inside the foundation top iron block 1 includes a first connecting rod 102 and a second connecting rod 104. The first connecting rod 102 is connected to the second connecting rod 104 via a connecting spring 103. One end of the second connecting rod 104 is connected to a quick-release device, and the other end of the first connecting rod 102 extends out of the end slope of the foundation top iron block 1.

[0032] Several connecting auxiliary rods 101 are fixedly installed on the left and right inclined surfaces of the base top iron block 1. The corner connecting block 3 is provided with connecting auxiliary holes 302 for inserting the connecting auxiliary rods 101. The corner connecting block 3 is provided with several connecting grooves 301 for inserting the first rod 102.

[0033] The extension top block 2 is detachably connected to the left or right end of the base top block 1 to increase the volume of the top block. The extension top block 2 is parallelogram-shaped. One end of the extension top block 2 is provided with an extension slope 203 for connecting to the base top block 1 or the extension top block 2. The other end of the extension top block 2 is provided with a connecting slope 204 for connecting to the corner connecting block 3 or the extension top block 2. The angles of the extension slope 203 and the connecting slope 204 correspond to the angles of the two end slopes of the base top block 1, respectively. Three connecting rods are slidably arranged in the cavity of the extension top block 2. The extension top block 2 includes an extension lock cylinder groove. The quick-release device includes a spherical lock cylinder body 4, which is rotatably disposed in the extension lock cylinder groove. The lock cylinder body 4 is respectively connected to the corner connecting block 3 or the extension top block 2. The connecting rods on both sides are connected. A locking operation handle 401 is fixedly installed on the main body 4 of the lock cylinder. An extension locking groove is opened on the extension top iron block 2 for the extension of the locking operation handle 401. Several sets of reset springs 402 are inside the main body 4 of the lock cylinder. One end of the reset spring 402 is fixedly connected to the locking operation handle 401. Several reset plates 403 for rotating and pressing the reset springs 402 are also provided inside the main body 4 of the lock cylinder. An extension locking groove for limiting the locking operation handle 401 is provided on the extension top iron block 2. Several connecting auxiliary rods 101 are fixedly installed on the connecting slope 204. Several extension slots 201 for the insertion of connecting rods are provided on the extension slope 203. Several extension auxiliary holes 202 for the insertion of connecting auxiliary rods 101 are provided on the extension slope 203.

[0034] The connecting rod inside the extension top block 2 includes a first connecting rod 102 and a second connecting rod 104. The first connecting rod 102 is connected to the second connecting rod 104 via a connecting spring 103. One end of the second connecting rod 104 is connected to a quick-release device, and the other end of the first connecting rod 102 extends out of the connecting inclined surface 204.

[0035] The cross-sections of the basic locking groove and the extended locking groove are arc-shaped, and the cross-section of the reset spring 402 is also arc-shaped. Example 2

[0036] See appendix Figures 2-9 And refer to Figure 1 The present invention discloses a combined jacking iron for rectangular jacking pipe, comprising four basic jacking iron blocks 1 and four extended jacking iron blocks 2. The basic jacking iron blocks 1 are in the shape of an isosceles trapezoid. The four basic jacking iron blocks 1 are arranged in the position of the four sides of a rectangle. The inclined surface of any one end of the upper and lower two basic jacking iron blocks 1 is detachably connected to the two extended jacking iron blocks 2. After being arranged in a rectangle, adjacent two basic jacking iron blocks 1 and adjacent basic jacking iron blocks 1 and extended jacking iron blocks 2 are detachably connected by corner connecting blocks 3.

[0037] The base top block 1 includes a base lock cylinder groove. The quick-release device includes a spherical lock cylinder body 4, which is rotatably mounted in the base lock cylinder groove. The lock cylinder body 4 is connected to three connecting rods on both sides, and the connecting rods are slidably mounted in the cavity of the base top block 1. A locking operation handle 401 is fixedly mounted on the lock cylinder body 4. The base top block 1 has a base locking groove for the locking operation handle 401 to extend. Several sets of reset springs 402 are located inside the lock cylinder body 4. One end of the reset spring 402 is fixedly connected to the locking operation handle 401. Several reset plates 403 for rotating and pressing the reset springs 402 are also provided inside the lock cylinder body 4. A base locking groove for limiting and locking the locking operation handle 401 is provided on the base top block 1.

[0038] The connecting rod inside the foundation top iron block 1 includes a first connecting rod 102 and a second connecting rod 104. The first connecting rod 102 is connected to the second connecting rod 104 via a connecting spring 103. One end of the second connecting rod 104 is connected to a quick-release device, and the other end of the first connecting rod 102 extends out of the end slope of the foundation top iron block 1.

[0039] Several connecting auxiliary rods 101 are fixedly installed on the left and right inclined surfaces of the base top iron block 1. The corner connecting block 3 is provided with connecting auxiliary holes 302 for inserting the connecting auxiliary rods 101. The corner connecting block 3 is provided with several connecting grooves 301 for inserting the first rod 102.

[0040] The extension top block 2 is detachably connected to the left or right end of the base top block 1 to increase the volume of the top block. The extension top block 2 is parallelogram-shaped. One end of the extension top block 2 is provided with an extension slope 203 for connecting to the base top block 1 or the extension top block 2. The other end of the extension top block 2 is provided with a connecting slope 204 for connecting to the corner connecting block 3 or the extension top block 2. The angles of the extension slope 203 and the connecting slope 204 correspond to the angles of the two end slopes of the base top block 1, respectively. Three connecting rods are slidably arranged in the cavity of the extension top block 2. The extension top block 2 includes an extension lock cylinder groove. The quick-release device includes a spherical lock cylinder body 4, which is rotatably disposed in the extension lock cylinder groove. The lock cylinder body 4 is respectively connected to the corner connecting block 3 or the extension top block 2. The connecting rods on both sides are connected. A locking operation handle 401 is fixedly installed on the main body 4 of the lock cylinder. An extension locking groove is opened on the extension top iron block 2 for the extension of the locking operation handle 401. Several sets of reset springs 402 are inside the main body 4 of the lock cylinder. One end of the reset spring 402 is fixedly connected to the locking operation handle 401. Several reset plates 403 for rotating and pressing the reset springs 402 are also provided inside the main body 4 of the lock cylinder. An extension locking groove for limiting the locking operation handle 401 is provided on the extension top iron block 2. Several connecting auxiliary rods 101 are fixedly installed on the connecting slope 204. Several extension slots 201 for the insertion of connecting rods are provided on the extension slope 203. Several extension auxiliary holes 202 for the insertion of connecting auxiliary rods 101 are provided on the extension slope 203.

[0041] The connecting rod inside the extension top block 2 includes a first connecting rod 102 and a second connecting rod 104. The first connecting rod 102 is connected to the second connecting rod 104 via a connecting spring 103. One end of the second connecting rod 104 is connected to a quick-release device, and the other end of the first connecting rod 102 extends out of the connecting inclined surface 204.

[0042] The cross-sections of the basic locking groove and the extended locking groove are arc-shaped, and the cross-section of the reset spring 402 is also arc-shaped.

Claims

1. A combined jacking iron for rectangular jacking pipes, characterized in that: It includes four base top iron blocks (1), which are trapezoidal in shape and arranged in the position of the four sides of a rectangle. Adjacent base top iron blocks (1) are detachably connected by corner connecting blocks (3). A quick-release device is provided in the cavity in the middle of the base top iron block (1). Several connecting rods are symmetrically arranged at both ends of the quick-release device. The connecting rods are slidably arranged in the cavity of the base top iron block (1). One end of the connecting rod is connected to the quick-release device, and the other end of the connecting rod extends out of the end slope of the base top iron block (1). Several connecting slots (301) for inserting the connecting rods are provided on the corner connecting block (3). The base top iron block (1) includes a base lock cylinder groove, and the quick-release device includes a spherical lock cylinder body (4). The lock cylinder body (4) is rotatably disposed in the base lock cylinder groove, and the lock cylinder body (4) is connected to the connecting rods on both sides respectively. A locking operation handle (401) is fixedly installed on the main body (4) of the lock cylinder, and a basic locking groove for the locking operation handle (401) to extend is opened on the base top iron block (1); The lock cylinder body (4) contains several sets of reset springs (402), one end of which is fixedly connected to the locking operation handle (401). The lock cylinder body (4) also contains several reset plates (403) for rotating and pressing the reset springs (402). The base top iron block (1) is provided with a base locking groove for limiting the locking operation handle (401).

2. The combined jacking iron for rectangular jacking pipe according to claim 1, characterized in that: It also includes several extended top iron blocks (2), the extended top iron blocks (2) are parallelograms, one end of the extended top iron block (2) is provided with an extended inclined surface (203), the other end of the extended top iron block (2) is provided with a connecting inclined surface (204), the angles of the extended inclined surface (203) and the connecting inclined surface (204) correspond to the angles of the two inclined surfaces at both ends of the base top iron block (1), several connecting rods are slidably arranged in the cavity of the extended top iron block (2), one end of the connecting rod extends out of the connecting inclined surface (204), a quick release device is provided in the cavity of the extended top iron block (2), the quick release device is connected to the other end of the connecting rod; several connecting auxiliary rods (101) are fixedly arranged on the connecting inclined surface (204); several extension slots (201) for inserting connecting rods are provided on the extended inclined surface (203), and several extension auxiliary holes (202) for inserting connecting auxiliary rods (101) are provided on the extended inclined surface (203).

3. The combined jacking iron for a rectangular jacking pipe according to claim 2, characterized in that: The extended top iron block (2) includes an extended lock cylinder groove, and the quick-release device includes a spherical lock cylinder body (4). The lock cylinder body (4) is rotatably disposed in the extended lock cylinder groove, and the lock cylinder body (4) is connected to the connecting rods on both sides respectively.

4. The combined jacking iron for a rectangular jacking pipe according to claim 3, characterized in that: The locking cylinder body (4) is fixedly provided with a locking operation handle (401), and the extension top iron block (2) is provided with an extension locking groove for the locking operation handle (401) to extend.

5. A combined jacking iron for rectangular jacking pipe according to claim 2, characterized in that: The lock cylinder body (4) contains several sets of reset springs (402), one end of which is fixedly connected to the locking operation handle (401). The lock cylinder body (4) also contains several reset plates (403) for rotating and pressing the reset springs (402). The extended top iron block (2) is provided with an extended locking groove for limiting the locking operation handle (401).

6. The combined jacking iron for rectangular jacking pipe according to claim 1, characterized in that: Several connecting auxiliary rods (101) are fixedly installed on the left and right inclined surfaces of the foundation top iron block (1), and connecting auxiliary holes (302) for inserting the connecting auxiliary rods (101) are provided on the corner connecting block (3).

7. A combined jacking iron for rectangular jacking pipe according to claim 1 or 3, characterized in that: The connecting rod includes a first connecting rod (102) and a second connecting rod (104), wherein the first connecting rod (102) is connected to the second connecting rod (104) by a connecting spring (103).

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