A positioning device for steel pipe jacking

Abstract

The utility model provides a kind of positioning device for steel pipe jacking pipe laying, it is related to steel pipe jacking pipe laying technical field, and it includes: hollow support column;The hollow support column bottom is inserted below ground, hollow support column outside is provided with bracing plate, bracing plate both ends are provided with vertical hole, vertical hole is inserted with ground peg, ground peg bottom is inserted below ground;The hollow support column top is connected with U-shaped pipe support, and U-shaped pipe support bottom is connected with nut.The utility model can be according to the height required by jacking pipe laying construction different, rotate nut, move up and down by nut drive U-shaped pipe support, the steel pipe in U-shaped pipe support is lifted and adjusted, and it is better applicable to different height jacking pipe laying construction demand;When nut rotation is adjusted, sliding sleeve moves and resets under the influence of spring thrust, so that rotating handle moves to limit groove, nut is fixed by sliding sleeve, to avoid nut rotation, guarantee the stability of steel pipe support positioning height.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe jacking technology, and in particular to a positioning device for steel pipe jacking. Background Technology

[0002] The steel pipe jacking process utilizes the jacking force generated by the jacking equipment to overcome the friction between the steel pipe and the surrounding soil, pushing the steel pipe into the soil at the designed slope. During construction, after the first section of steel pipe is pushed into the soil, the second section is then pushed in to continue jacking until the entire pipeline is laid. To ensure the smooth progress of the steel pipe jacking, positioning devices are usually used to assist in positioning the steel pipe and prevent displacement.

[0003] Currently, the positioning devices used in steel pipe jacking installation lack reliable limiting and locking mechanisms. The adjustment and connection parts are prone to loosening under external forces, causing the steel pipe support height to drop and adversely affecting the accuracy of steel pipe jacking installation. Utility Model Content

[0004] This utility model relates to a positioning device for steel pipe jacking, which solves the problem that existing positioning devices for steel pipe jacking lack a reliable limiting and locking mechanism, and their adjustment and connection parts are prone to loosening under external force, resulting in the steel pipe support height shifting downward and adversely affecting the accuracy of steel pipe jacking.

[0005] In a first aspect, this utility model provides a positioning device for laying steel pipe jacking, specifically comprising: a hollow support column, ground nails, a U-shaped pipe brace, a nut, a sliding sleeve, and a U-shaped pin; the bottom of the hollow support column is inserted below the ground, and a support plate is provided on the outside of the hollow support column, with vertical holes at both ends of the support plate, into which ground nails are inserted, the bottom of which is inserted below the ground; the top of the hollow support column is connected to the U-shaped pipe brace, and the bottom of the U-shaped pipe brace is connected to the nut, the nut being located at the top of the hollow support column; a sliding sleeve is fitted on the outside of the hollow support column, and the sliding sleeve is connected to the nut; a U-shaped pin is connected on the outside of the hollow support column, and the U-shaped pin is connected to the sliding sleeve.

[0006] Furthermore, a screw is provided at the bottom of the U-shaped tube support, and the screw is slidably connected to the hollow support column. The inner side of the hollow support column is symmetrically provided with an inner plane, and the outer side of the screw is symmetrically provided with an outer plane. The outer plane and the inner plane slide in contact and cooperate with each other to guide the movement of the U-shaped tube support and prevent the U-shaped tube support from twisting.

[0007] Furthermore, the nut is threaded onto the outside of the screw rod, and the bottom of the nut contacts the top of the hollow support column. Depending on the required height for the jacking pipe laying construction, the nut can be rotated to move the U-shaped pipe support up and down, thereby adjusting the height of the steel pipe inside the U-shaped pipe support.

[0008] Furthermore, the U-shaped tube support is slidably connected to the hollow support column, and a guide block is arranged around the outside of the hollow support column. A sliding hole is arranged around the outside of the sliding sleeve. The guide block is slidably connected in the sliding hole. The guide block and the sliding hole slide together to guide the movement of the sliding sleeve and prevent the sliding sleeve from twisting.

[0009] Furthermore, a spring is fitted on the outside of the hollow support column. The bottom end of the spring contacts the top side of the support plate, and the top end of the spring contacts the bottom of the sliding sleeve. The spring provides an elastic restoring effect for the sliding sleeve.

[0010] Furthermore, a limiting groove is provided around the top of the sliding sleeve, and a rotating handle is provided around the outside of the nut. The rotating handle is located in the limiting groove. After the nut is rotated and adjusted, the sliding sleeve moves and resets under the influence of the spring thrust, so that the rotating handle moves into the limiting groove, and the nut is fixed by the sliding sleeve.

[0011] Furthermore, the hollow support column is symmetrically provided with positioning inner grooves on its exterior, and the sliding sleeve is symmetrically provided with positioning outer holes on its exterior. The positioning outer holes are connected to the positioning inner grooves. The end of the U-shaped pin is inserted into the positioning outer hole and the positioning inner groove. When it is necessary to rotate the nut for lifting and lowering adjustment, the sliding sleeve is moved downward, the spring is in a contracted state under force, the positioning outer hole and the positioning inner groove are connected, the handle is separated from the limiting groove, and the end of the U-shaped pin is inserted into the connected positioning outer hole and the positioning inner groove. The sliding sleeve is fixed by the U-shaped pin to prevent the sliding sleeve from moving upward, and the nut can be released from locking.

[0012] This utility model provides a positioning device for laying steel pipe jacking pipes, which has the following advantages: In use, the outer and inner planes slide together to guide the movement of the U-shaped pipe support, preventing the U-shaped pipe support from twisting. Depending on the required height of the pipe jacking construction, the nut can be rotated to move the U-shaped pipe support up and down, adjusting the height of the steel pipe inside the U-shaped pipe support, thus better meeting the needs of pipe jacking construction at different heights.

[0013] In addition, the guide block slides into the sliding hole to guide the movement of the sliding sleeve and prevent the sleeve from twisting; the spring provides elastic reset for the sliding sleeve; after the nut is rotated and adjusted, the sliding sleeve moves and resets under the influence of the spring force, causing the handle to move into the limit groove, and the nut is fixed by the sliding sleeve to prevent the nut from rotating and ensure the stability of the steel pipe support positioning height.

[0014] In addition, when it is necessary to rotate the nut for height adjustment, move the sliding sleeve downwards, the spring is in a contracted state, the positioning outer hole and the positioning inner groove are connected, the handle separates from the limit groove, insert the end of the U-shaped pin into the connected positioning outer hole and positioning inner groove, fix the sliding sleeve by the U-shaped pin to prevent the sliding sleeve from moving upwards, the nut is unlocked, and the nut can be rotated to perform the support positioning height adjustment operation, which is more convenient.

[0015] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the shaft side structure in the unlocked state of this application is shown; Figure 2 A schematic diagram of the shaft side structure in the nut-locked state of this application is shown; Figure 3 A schematic diagram of the hollow support column, sliding sleeve, spring and U-pin connection structure of this application is shown; Figure 4 This paper shows a schematic diagram of the disassembled structure of the hollow support column, sliding sleeve, spring and U-pin of this application; Figure 5 A schematic diagram of the U-shaped tube support and nut connection structure of this application is shown.

[0019] Figure label: 1. Hollow support column; 101. Support plate; 1011. Vertical hole; 102. Inner plane; 103. Guide block; 104. Positioning inner groove; 2. Ground nail; 3. U-shaped tube support; 301. Screw; 3011. Outer plane; 4. Nut; 401. Rotary handle; 5. Sliding sleeve; 501. Sliding hole; 502. Limiting groove; 503. Positioning outer hole; 6. Spring; 7. U-shaped pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 5 : This utility model proposes a positioning device for steel pipe jacking, comprising: a hollow support column 1, ground nails 2, U-shaped pipe supports 3, nuts 4, sliding sleeves 5, and U-shaped pins 7; the bottom of the hollow support column 1 is inserted below the ground, and a support plate 101 is provided on the outside of the hollow support column 1. Vertical holes 1011 are provided at both ends of the support plate 101, and ground nails 2 are inserted into the vertical holes 1011, with the bottom of the ground nails 2 inserted below the ground; the top of the hollow support column 1 is connected to the U-shaped pipe supports 3, and the bottom of the U-shaped pipe supports 3 is connected to the nuts 4, with the nuts 4 located at the top of the hollow support column 1; a sliding sleeve 5 is fitted on the outside of the hollow support column 1, and the sliding sleeve 5 is connected to the nuts 4; a U-shaped pin 7 is connected on the outside of the hollow support column 1, and the U-shaped pin 7 is connected to the sliding sleeve 5.

[0022] In this embodiment of the utility model, a screw 301 is provided at the bottom of the U-shaped tube support 3. The screw 301 is slidably connected to the hollow support column 1. An inner plane 102 is symmetrically provided on the inner side of the hollow support column 1. An outer plane 3011 is symmetrically provided on the outer side of the screw 301. The outer plane 3011 is in sliding contact with the inner plane 102. A nut 4 is threadedly connected to the outside of the screw 301. The bottom of the nut 4 is in contact with the top of the hollow support column 1. Using the above technical solution, the outer plane 3011 and the inner plane 102 slide together to guide the movement of the U-shaped pipe support 3, avoiding the torsion of the U-shaped pipe support 3. Depending on the different heights required for the jacking pipe laying construction, the nut 4 can be rotated to drive the U-shaped pipe support 3 to move up and down, thereby adjusting the height of the steel pipe inside the U-shaped pipe support 3, which is better suited to the needs of jacking pipe laying construction at different heights.

[0023] In this embodiment of the utility model, the U-shaped tube support 3 is slidably connected to the hollow support column 1. The hollow support column 1 is surrounded by a guide block 103. The sliding sleeve 5 is surrounded by a sliding hole 501. The guide block 103 is slidably connected in the sliding hole 501. The hollow support column 1 is fitted with a spring 6. The bottom end of the spring 6 contacts the top side of the support plate 101. The top end of the spring 6 contacts the bottom of the sliding sleeve 5. The top of the sliding sleeve 5 is surrounded by a limiting groove 502. The nut 4 is surrounded by a rotating handle 401. The rotating handle 401 is located in the limiting groove 502. Using the above technical solution, the guide block 103 slides with the sliding hole 501 to guide the movement of the sliding sleeve 5, preventing the sliding sleeve 5 from twisting. The spring 6 provides an elastic reset effect for the sliding sleeve 5. After the nut 4 is rotated and adjusted, the sliding sleeve 5 moves and resets under the influence of the spring 6, causing the handle 401 to move into the limiting groove 502. The sliding sleeve 5 fixes the nut 4, preventing the nut 4 from rotating and ensuring the stability of the steel pipe support positioning height.

[0024] In Example 2, based on Example 1, the hollow support column 1 is symmetrically provided with a positioning inner groove 104 on the outside, and the sliding sleeve 5 is symmetrically provided with a positioning outer hole 503 on the outside. The positioning outer hole 503 is connected to the positioning inner groove 104, and the end of the U-shaped pin 7 is inserted into the positioning outer hole 503 and the positioning inner groove 104. Using the above technical solution, when it is necessary to rotate the nut 4 for height adjustment, the sliding sleeve 5 is moved downward, the spring 6 is in a contracted state under force, the positioning outer hole 503 and the positioning inner groove 104 are in a connected state, the rotating handle 401 is separated from the limiting groove 502, the end of the U-shaped pin 7 is inserted into the connected positioning outer hole 503 and positioning inner groove 104, the sliding sleeve 5 is fixed by the U-shaped pin 7 to prevent the sliding sleeve 5 from moving upward, the nut 4 is unlocked, and the nut 4 can be rotated to perform the support positioning height adjustment operation, which is more convenient.

[0025] The working principle of this embodiment is as follows: First, the bottom of the hollow support column 1 is inserted below the ground, and the ground nail 2 is inserted into the vertical hole 1011 to further fix the hollow support column 1. The steel pipe in the pipe jacking construction is placed inside the U-shaped pipe support 3. The U-shaped pipe support 3 supports and positions the steel pipe to prevent it from moving left and right. Next, depending on the required height of the pipe jacking construction, the nut 4 is rotated, which drives the U-shaped pipe support 3 to move up and down, adjusting the steel pipe inside the U-shaped pipe support 3 to suit the needs of pipe jacking construction at different heights. After the U-shaped pipe support 3 is adjusted to the required height, the U-shaped pin 7 is pulled out, and the sliding sleeve 5 moves back to its original position under the influence of the spring 6, causing the rotating handle 401 to move into the limiting groove 502. The sliding sleeve 5 fixes the nut 4 to prevent it from rotating, ensuring the stability of the steel pipe support positioning height.

[0026] The following points should be noted in this article: 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0027] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0028] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A positioning device for laying steel pipe jacking pipe, comprising: Hollow support column (1), ground nail (2), U-shaped tube support (3), nut (4), sliding sleeve (5) and U-shaped pin (7); characterized in that the bottom of the hollow support column (1) is inserted below the ground, a support plate (101) is provided on the outside of the hollow support column (1), vertical holes (1011) are provided at both ends of the support plate (1011), ground nail (2) is inserted into the vertical holes (1011), and the bottom of the ground nail (2) is inserted below the ground; the top of the hollow support column (1) is connected to the U-shaped tube support (3), the bottom of the U-shaped tube support (3) is connected to the nut (4), and the nut (4) is located at the top of the hollow support column (1); a sliding sleeve (5) is fitted on the outside of the hollow support column (1), and the sliding sleeve (5) is connected to the nut (4); a U-shaped pin (7) is connected on the outside of the hollow support column (1), and the U-shaped pin (7) is connected to the sliding sleeve (5).

2. The positioning device for steel pipe jacking laying according to claim 1, characterized in that, The bottom of the U-shaped tube support (3) is provided with a screw (301), which is slidably connected to the hollow support column (1). The hollow support column (1) is symmetrically provided with an inner plane (102) on the inner side, and the screw (301) is symmetrically provided with an outer plane (3011) on the outside. The outer plane (3011) and the inner plane (102) are in sliding contact.

3. The positioning device for steel pipe jacking laying according to claim 2, characterized in that, The nut (4) is threaded to the outside of the screw (301), and the bottom of the nut (4) contacts the top of the hollow support column (1).

4. The positioning device for steel pipe jacking laying according to claim 1, characterized in that, The U-shaped tube support (3) is slidably connected to the hollow support column (1). The hollow support column (1) is surrounded by a guide block (103), and the sliding sleeve (5) is surrounded by a sliding hole (501). The guide block (103) is slidably connected to the sliding hole (501).

5. A positioning device for laying steel pipe jacking pipe according to claim 1, characterized in that, The hollow support column (1) is fitted with a spring (6) on the outside. The bottom end of the spring (6) contacts the top side of the support plate (101), and the top end of the spring (6) contacts the bottom of the sliding sleeve (5).

6. A positioning device for laying steel pipe jacking pipe according to claim 1, characterized in that, The top of the sliding sleeve (5) is provided with a limiting groove (502), and the outside of the nut (4) is provided with a rotating handle (401), which is located in the limiting groove (502).

7. A positioning device for laying steel pipe jacking pipe according to claim 1, characterized in that, The hollow support column (1) is symmetrically provided with a positioning inner groove (104) on the outside, and the sliding sleeve (5) is symmetrically provided with a positioning outer hole (503) on the outside. The positioning outer hole (503) is connected to the positioning inner groove (104), and the end of the U-shaped pin (7) is inserted into the positioning outer hole (503) and the positioning inner groove (104).

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