Miniature pipe jacking machine

Abstract

The invention relates to the technical field of pipe laying, and particularly discloses a miniature pipe jacking machine which comprises a base, a sliding base arranged on the base and a driving assembly used for driving the sliding base to move, a first carrying plate, a second carrying plate and a third carrying plate are sequentially arranged in the sliding base in the length extending direction of the sliding base, and a first top plate and a second top plate are slidably arranged on the second carrying plate; the first top plate is elastically connected with the sliding seat, the first top plate and the second top plate can be close to or away from each other at the same time, a limiting piece is arranged on the first top plate, an unlocking piece matched with the limiting piece is arranged on the sliding seat in a sliding mode, and a matching plate matched with the unlocking piece and a reset piece matched with the second top plate are arranged on the base. The unlocking piece can abut against the limiting piece so that the first top plate and the second top plate can be close to each other at the same time. And when the sliding base retreats and the second top plate abuts against the reset piece, the first top plate and the second top plate can be away from each other at the same time, and efficient jacking of the pipeline is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of pipe laying, and in particular to a micro pipe jacking machine. Background Art

[0002] Micro pipe jacking machine is a kind of equipment used for underground pipeline construction. It is a kind of trenchless technology that can install or replace underground pipes without digging the ground. This technology is particularly suitable for urban centers, busy traffic areas or environmentally sensitive areas because it can significantly reduce the impact on ground traffic and the surrounding environment. Micro pipe jacking machine can handle various soil layers, including soft soil and rock layers, and is suitable for the installation of pipes of different diameters.

[0003] A Chinese patent application with publication number CN116557636A discloses a micro pipe jacking machine, comprising a base, a propulsion component and a first clamping component, the propulsion component comprising a first power component and a moving plate, the moving plate being slidably connected to the base, the first power component being arranged on the base and used to push the moving plate to reciprocate along the length direction of the base, the end of one end of the moving plate being provided with a first fixing seat for mounting the first clamping component; the first clamping component comprising a base plate, a clamping assembly and a rotating motor, the clamping assembly being arranged on the base plate and used to clamp a second pipe, the rotating motor being used to drive the clamping assembly to rotate, the clamping assembly driving the second pipe to rotate so that the second pipe is threadedly connected to the first pipe; the clamping assembly comprising a rotating plate and two first clamping plates symmetrically arranged along the axis of the rotating plate, the rotating plate being rotatably connected to the base plate, the first clamping plate being slidably connected to the rotating plate, and the rotating plate being provided with a second power component for pushing the first clamping plate to move along the radial direction of the rotating plate.

[0004] In the above technical scheme, after the previous pipe is pushed into the soil layer, the rotating rod rotates clockwise to push the second clamping plate out of the second fixed seat, so that the second clamping plate clamps the previous pipe. After the next pipe is connected to the previous one, the rotating rod rotates counterclockwise to return to its original position and drives the second clamping plate to retract. Then the pushing component pushes the connected pipe into the soil layer. After one jacking, the rotating rod rotates counterclockwise to drive the middle plate to extend for the second jacking of the pipe. After the second jacking is completed, the rotating rod is reset and drives the middle plate to retract. The above operation is repeated until all pipes are pushed in. However, this process requires an additional drive motor to assist the rotating rod to realize the back and forth switching of the middle plate and the second clamping plate. The operation process is relatively cumbersome and is not conducive to the efficient implementation of pipe jacking. Summary of the invention

[0005] The present invention provides a micro pipe jacking machine, aiming to solve the problem in the related art that it is difficult to jack a pipe efficiently.

[0006] A micro pipe jacking machine comprises a base, a slide seat arranged on the base and a driving assembly for driving the slide seat to move, wherein a carrier plate 1, a carrier plate 2 and a carrier plate 3 are arranged in sequence in the slide seat along its length extension direction, a top plate 1 and a top plate 2 are slidably arranged on the carrier plate 2, the top plate 1 is elastically connected to the slide seat, the top plate 1 and the top plate 2 can approach or move away from each other at the same time, a limiting member is arranged on the top plate 1, an unlocking member cooperating with the limiting member is slidably arranged on the slide seat, a matching plate cooperating with the unlocking member and a reset member cooperating with the top plate 2 are arranged on the base, when the slide seat moves forward and the unlocking member stops against the matching plate, the unlocking member can stop against the limiting member, so that the top plate 1 and the top plate 2 can approach each other at the same time; when the slide seat moves backward and the top plate 2 stops against the reset member, the top plate 1 and the top plate 2 can move away from each other at the same time.

[0007] Preferably, the top plate 1 is connected to the slide seat through an elastic member 1, a rack 1 is provided at the lower end of the top plate 1, a rack 2 cooperating with the rack 1 is provided at the lower end of the top plate 2, and a gear meshing with the rack 1 and the rack 2 is rotatably provided inside the carrier plate 2.

[0008] Preferably, a sliding cavity 1 for sliding between top plates 1 and 2 is provided in the carrier plate 2, a sliding cavity 2 for sliding of the unlocking member is provided in the slide seat, a partition is provided between the sliding cavity 1 and the sliding cavity 2, and a through hole cooperating with the limiting member is provided on the partition.

[0009] Preferably, the limiting member is connected to the top plate one through the elastic member two, the limiting member has an arc surface matching with the through hole on the side facing the unlocking member, the unlocking member has a guide surface one matching with the arc surface, and the unlocking member is connected to the sliding seat through the elastic member three.

[0010] Preferably, the matching plate has a second guide surface, and the unlocking member has a third guide surface matching the second guide surface.

[0011] Preferably, a mounting groove for installing a reset member is provided at the bottom of the slide seat, the reset member has a guide surface four and a guide surface five connected in sequence, and the lower end of the top plate two has a guide rod that cooperates with the guide surface four and the guide surface five.

[0012] Preferably, a slider 1 is provided on the side of the top plate 1 away from the carrier plate 3, a slider 2 is provided on the side of the top plate 2 away from the carrier plate 3, and a sliding groove cooperating with the slider 1 and the slider 2 is opened in the carrier plate 2 in the horizontal direction.

[0013] Preferably, the driving assembly comprises two driving members respectively located on both sides of the slide, the telescopic ends of the driving members are connected to the slide, and a control member for controlling the operation of the driving members is provided on the base.

[0014] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: after the first jacking of the pipeline, the limit member can be disengaged from the through hole, so that the sides of the top plate 1 and the top plate 2 that are close to each other are respectively abutted against the outer wall of the pipeline; then the control member is used to slowly shrink the telescopic end of the driving member until the top plate 1 and the top plate 2 move to the tail of the pipeline. At this time, under the action of the elastic member 1, the top plate 1 and the top plate 2 are close to each other and abutted against each other, and then the control member is used to slowly extend the telescopic end of the driving member to the longest state to achieve the second jacking of the pipeline; then the control member is used to shrink the telescopic end of the driving member to the initial state, during which the slide seat retreats and the guide rod on the top plate 2 abuts against the guide surface 4 of the reset member, the top plate 1 and the top plate 2 can move away from each other at the same time, and when the guide rod abuts against the guide surface 5, the limit member enters the through hole again, and the top plate 1 and the top plate 2 are reset to the initial state, thereby achieving continuous and efficient jacking of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle.

[0016] Figure 2 It is a schematic diagram of the second viewing angle of the overall structure of the present invention.

[0017] Figure 3 It is an exploded view of the slide and the base of the present invention along the vertical direction.

[0018] Figure 4 It is a first cross-sectional view of the slide seat of the present invention.

[0019] Figure 5 It is a second cross-sectional view of the slide seat of the present invention.

[0020] Figure 6 It is a third cross-sectional view of the slide seat of the present invention.

[0021] Figure 7 for Figure 6 A magnified schematic diagram of center A.

[0022] Figure 8 It is a schematic diagram of the matching plate and the unlocking member of the present invention.

[0023] Fig. 9 This is a schematic diagram of the first jacking of a pipeline according to the present invention.

[0024] Fig.10 This is a schematic diagram of the second jacking of the pipeline according to the present invention.

[0025] Reference numerals: 10, base; 11, matching plate; 111, guide surface 2; 12, reset member; 121, guide surface 4; 122, guide surface 5; 13, control member; 14, guide rail; 20, slide seat; 200, slide cavity 2; 201, partition; 202, through hole; 203, mounting groove; 21, carrier plate 1; 22, carrier plate 2; 220, slide cavity 1; 221, gear; 222, slide Groove; 23, carrier plate three; 24, elastic member one; 25, top plate one; 251, rack one; 252, slider one; 26, top plate two; 261, rack two; 262, guide rod; 263, slider two; 27, limit member; 271, arc surface; 272, elastic member two; 28, unlocking member; 281, guide surface one; 282, elastic member three; 283, guide surface three; 31, driving member. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] like Figure 1-Figure 3 As shown, a micro pipe jacking machine includes a base 10, a slide 20 arranged on the base 10 and a driving assembly for driving the slide 20 to move. The base 10 is provided with a guide rail 14 for the slide 20 to slide along its length extension direction. The slide 20 is provided with a carrier plate 1 21, a carrier plate 22 and a carrier plate 3 23 in sequence along its length extension direction. The carrier plate 1 21, the carrier plate 22 and the carrier plate 3 23 respectively have grooves that cooperate with the pipe.

[0028] like Figure 4-Figure 8 As shown, a top plate 25 and a top plate 26 are slidably provided on the carrier plate 22, a sliding cavity 220 for sliding the top plate 25 and the top plate 26 is provided in the carrier plate 22, a slider 252 is provided on the side of the top plate 25 away from the carrier plate 3 23, a slider 263 is provided on the side of the top plate 26 away from the carrier plate 3 23, a sliding groove 222 cooperating with the slider 252 and the slider 263 is provided in the sliding cavity 220 along the horizontal direction, the top plate 25 is elastically connected to the slide seat 20 through an elastic member 24, the elastic member 24 is specifically a spring, a rack 251 is provided at the lower end of the top plate 25, a rack 261 cooperating with the rack 251 is provided at the lower end of the top plate 26, and a gear 221 meshing with the rack 251 and the rack 261 is rotatably provided in the carrier plate 22, so that the top plate 25 and the top plate 26 can approach or move away from each other at the same time.

[0029] A limit piece 27 is slidably provided on the top plate 1 25 through an elastic piece 272, and the elastic piece 272 is specifically a spring. An unlocking piece 28 cooperating with the limit piece 27 is slidably provided on the slide seat 20 through an elastic piece 3 282 in a vertical direction, and the elastic piece 3 282 is specifically a spring. A matching plate 11 cooperating with the unlocking piece 28 and a reset piece 12 cooperating with the top plate 26 are fixedly provided on the base 10, and the matching plate 11 is located on the front side of the reset piece 12. A sliding cavity 200 for sliding the unlocking piece 28 is provided in the slide seat 20, and a partition plate 201 is provided between the sliding cavity 1 220 and the sliding cavity 200, and a through hole 202 cooperating with the limit piece 27 is provided on the partition plate 201, and the side of the limit piece 27 facing the unlocking piece 28 has a through hole 202 cooperating with the through hole The locking member 27 has an arcuate surface 271 which cooperates with the arcuate surface 271, the unlocking member 28 has a guide surface 1 281 which cooperates with the arcuate surface 271, the matching plate 11 has a guide surface 2 111, and the unlocking member 28 has a guide surface 3 283 which cooperates with the guide surface 2 111. When the sliding seat 20 moves forward and the guide surface 3 283 of the unlocking member 28 abuts against the guide surface 2 111 of the matching plate 11, the unlocking member 28 can move upward so that the guide surface 1 281 abuts against the arcuate surface 271, thereby allowing the arcuate surface 271 of the limiting member 27 to enter the through hole 202. Subsequently, under the action of the elastic member 1 24, the limiting member 27 can be disengaged from the through hole 202, so that the sides of the top plate 1 25 and the top plate 26 which are close to each other respectively abut against the outer wall of the pipeline.

[0030] A mounting groove 203 for installing the reset member 12 is provided at the bottom of the slide 20. The reset member 12 has a guide surface four 121 and a guide surface five 122 connected in sequence. The lower end of the top plate 26 has a guide rod 262 that cooperates with the guide surface four 121 and the guide surface five 122. When the slide 20 retreats and the guide rod 262 on the top plate 26 stops against the guide surface four 121 of the reset member 12, the top plate 1 25 and the top plate 2 26 can move away from each other at the same time. When the guide rod 262 stops against the guide surface five 122, the limit member 27 enters the through hole 202 again, and the top plate 1 25 and the top plate 2 26 are reset to the initial state.

[0031] like Figure 1-Figure 3 As shown, in this embodiment, the driving assembly includes two driving members 31 respectively located on both sides of the slide 20. The driving member 31 can be a hydraulic cylinder. The telescopic end of the driving member 31 is connected to the slide 20. The base 10 is provided with a control member 13 for controlling the operation of the driving member 31.

[0032] Specific working principle: Reference Figure 1-Figure 10After the pipe jacking machine is installed in place, the pipe is placed on the slide 20 and the pipe is respectively contacted with the grooves on the carrier plate 1 21, the carrier plate 22 and the carrier plate 3 23, and one end of the pipe is stopped against the end of the slide 20 away from the carrier plate 3 23, and then the control member 13 is used to slowly extend the telescopic end of the driving member 31 to the longest state to achieve the first jacking of the pipe. It can be understood that in this process, when the slide 20 moves forward and the guide surface 3 283 of the unlocking member 28 is stopped against the guide surface 2 111 of the matching plate 11, the limit member 27 can be disengaged from the through hole 202, so that the side of the top plate 1 25 and the top plate 26 that are close to each other are respectively stopped against the outer wall of the pipe; then the control member 13 is used to slowly shrink the telescopic end of the driving member 31 until the top plate 1 25 and the top plate 26 move to At the tail end of the pipeline, under the action of the elastic member 1 24, the top plate 1 25 and the top plate 2 26 approach each other and stop each other, and then the control member 13 is used to slowly extend the telescopic end of the driving member 31 to the longest state to achieve the second jacking of the pipeline; then the control member 13 is used to shrink the telescopic end of the driving member 31 to the initial state. During this process, the slide 20 retreats and the guide rod 262 on the top plate 26 stops with the guide surface 4 121 of the reset member 12, and the top plate 1 25 and the top plate 26 can move away from each other at the same time. When the guide rod 262 stops with the guide surface 5 122, the limit member 27 enters the through hole 202 again, and the top plate 1 25 and the top plate 26 are reset to the initial state. At this point, the continuous jacking of the pipeline is achieved, and then the above process is repeated to perform the jacking operation on the next pipeline.

[0033] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A micro pipe jacking machine, comprising a base (10), a slide (20) disposed on the base (10), and a drive assembly for driving the slide (20) to move, characterized in that: The slide seat (20) is provided with a carrier plate 1 (21), a carrier plate 2 (22) and a carrier plate 3 (23) in sequence along its length extension direction; a top plate 1 (25) and a top plate 2 (26) are slidably provided on the carrier plate 2 (22); the top plate 1 (25) is elastically connected to the slide seat (20); the top plate 1 (25) and the top plate 2 (26) can be moved closer or farther away at the same time; a limiter (27) is provided on the top plate 1 (25); and an unlocking member (28) cooperating with the limiter (27) is slidably provided on the slide seat (20); The seat (10) is provided with a matching plate (11) matching with the unlocking member (28) and a reset member (12) matching with the second top plate (26). When the slide seat (20) moves forward and the unlocking member (28) stops against the matching plate (11), the unlocking member (28) can stop against the limiting member (27), so that the first top plate (25) and the second top plate (26) can approach each other at the same time; when the slide seat (20) moves backward and the second top plate (26) stops against the reset member (12), the first top plate (25) and the second top plate (26) can move away from each other at the same time.

2. A micro pipe jacking machine according to claim 1, characterized in that: The top plate 1 (25) is connected to the slide seat (20) via an elastic member 1 (24); a rack 1 (251) is provided at the lower end of the top plate 1 (25); a rack 2 (261) matching the rack 1 (251) is provided at the lower end of the top plate 2 (26); a gear (221) meshing with the rack 1 (251) and the rack 2 (261) is rotatably provided inside the carrier plate 2 (22).

3. A micro pipe jacking machine according to claim 1, characterized in that: The carrier plate 2 (22) is provided with a first sliding cavity (220) for sliding of the top plate 1 (25) and the second top plate (26), the slide seat (20) is provided with a second sliding cavity (200) for sliding of the unlocking member (28), a partition plate (201) is provided between the first sliding cavity (220) and the second sliding cavity (200), and a through hole (202) is provided on the partition plate (201) for cooperating with the limiting member (27).

4. A micro pipe jacking machine according to claim 3, characterized in that: The limiting member (27) is connected to the top plate (25) via the second elastic member (272); the limiting member (27) has a curved surface (271) on the side facing the unlocking member (28) that matches the through hole (202); the unlocking member (28) has a guide surface (281) that matches the curved surface (271); and the unlocking member (28) is connected to the slide seat (20) via the third elastic member (282).

5. A micro pipe jacking machine according to claim 1, characterized in that: The matching plate (11) has a second guide surface (111), and the unlocking member (28) has a third guide surface (283) matching with the second guide surface (111).

6. A micro pipe jacking machine according to claim 1, characterized in that: The bottom of the slide seat (20) is provided with a mounting groove (203) for mounting the reset member (12); the reset member (12) has a guide surface four (121) and a guide surface five (122) connected in sequence; the lower end of the top plate two (26) has a guide rod (262) that cooperates with the guide surface four (121) and the guide surface five (122).

7. A micro pipe jacking machine according to claim 1, characterized in that: A slider 1 (252) is provided on the side of the top plate 1 (25) away from the carrier plate 3 (23), a slider 2 (263) is provided on the side of the top plate 2 (26) away from the carrier plate 3 (23), and a slide groove (222) is provided in the carrier plate 2 (22) along the horizontal direction to cooperate with the slider 1 (252) and the slider 2 (263).

8. A micro pipe jacking machine according to any one of claims 1 to 7, characterized in that: The driving assembly comprises two driving members (31) respectively located on both sides of the slide seat (20), the telescopic ends of the driving members (31) are connected to the slide seat (20), and a control member (13) for controlling the operation of the driving members (31) is provided on the base (10).

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