A trenchless section of pipe replacement top pull

Abstract

The application provides a trenchless short section replacement top-pull pipe, and a rotating mechanism comprises an inner shaft, a fan blade, a corrugated frame, a sleeve ring, a scraper and a clamping block. The inner shaft rotates in the pipe. The fan blade is located at one end of the inner shaft close to the clamping ring. The corrugated frame surrounds the outer side of the inner shaft. The sleeve ring is sleeved and slides on the outer side of the corrugated frame. The scraper swings at one end of the sleeve ring. The clamping block is located at the other end of the inner shaft away from the fan blade. The rotating sphere can drive the hook to swing and extend to the outside of the circular ring. At this time, the hook is quickly embedded in the hole of the clamping ring. With the continuous rotation of the inner shaft, the inner shaft continuously drives the rotating sphere to swing towards the side of the clamping ring through the support and the rotating ring. When the hook is in the clamping ring and is in the clamping state, the rotating sphere cannot continue to rotate, so that the pipe can be further assisted by the water pressure of the sewage flow to connect the pipes tightly after the sewage enters the inside.

Description

Technical Field

[0001] This invention relates to the field of pipe technology, and more particularly to a trenchless short section replacement jacking pipe. Background Technology

[0002] The jacking pipe is installed by slotting the pipe, then drilling holes on the other side and using a tractor to pull the pipe over. It is generally constructed after the pipe is welded in one go. Jacking pipes are mainly used for drainage and rainwater / sewage pipes in residential buildings, apartments, gardens, etc., as well as for grounding protection and communication cable protection. When jacking pipes are used for drainage, they are installed by flange connection. Technical inspiration for jacking pipes.

[0003] The study of jacking pipes revealed the following problems:

[0004] The jacking pipe is connected only by flanges and bolts. The flange connection is prone to gaps, which can lead to sewage leakage between the flanges after long-term use. Sewage usually carries impurities, and the jacking pipe cannot clean these impurities. As a result, impurities tend to accumulate inside the jacking pipe, which prevents the jacking pipe from further increasing the tightness of the connection while cleaning the impurities.

[0005] Currently, the prior art CN202110098907.6 discloses a jacking pipe for sewage pipe network construction. This invention includes a pressing device installed inside the pile foundation base, used to push the jacking pipe bodies together; a transmission device installed inside the pile foundation base; a driving device installed inside the pile foundation base, used to transmit the force provided by the transmission device; and a correction device installed on the pile foundation base, used to assist in connecting the jacking pipe bodies. This jacking pipe for sewage pipe network construction is equipped with a pressing device and a correction device. While the motor rotates and drives the pressing block to press and connect the jacking pipe bodies, a sliding block drives the correction plate to correct the jacking pipe bodies.

[0006] This invention primarily addresses the problem that top-pull pipes cannot simultaneously clean impurities and further increase the tightness of their interconnections. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a trenchless short-section replacement jacking pipe to solve the problems described in the background section.

[0008] The purpose and effect of the trenchless short section replacement jacking pipe of the present invention are achieved by the following specific technical means: a trenchless short section replacement jacking pipe, including a pipe, both ends of which are provided with flanges, one end of the pipe is surrounded by a retaining ring, and the inside of the pipe is provided with a rotating mechanism.

[0009] Furthermore, a groove is provided at the end of the pipe away from the retaining ring, and the retaining ring and the groove are slidably nested together. A hole is provided at the end of the retaining ring away from the pipe, and the length of the groove is 2-4 cm longer than the length of the retaining ring.

[0010] Furthermore, the flange has through bolts inside, and when the pipes are connected, the flanges are connected in pairs, with the bolts passing through the gap between each pair of flanges.

[0011] Furthermore, the rotating mechanism includes an inner shaft, a fan blade, a corrugated frame, a collar, a scraper, and a locking block. The inner shaft rotates inside the pipe, the fan blade is located at the end of the inner shaft near the locking ring, the corrugated frame surrounds the outside of the inner shaft, the collar slides on the outside of the corrugated frame, the scraper swings at one end of the collar, and the locking block is located at the end of the inner shaft away from the fan blade.

[0012] Furthermore, the fan blade has a groove on the side away from the inner shaft. The groove is arc-shaped, the fan blade is bent at 5-15°, and the diameter of the inner shaft is one-tenth of the pipe diameter.

[0013] Furthermore, the corrugated frame is wave-shaped, with one side of the corrugated frame embedded inside the inner shaft and the collar located on the other side of the corrugated frame.

[0014] Furthermore, the collar and scraper are provided in a matching arrangement, with multiple sets of collars and scrapers provided, and the collar being circular in shape.

[0015] Furthermore, a groove is provided at one end of the inner shaft near the locking block, the locking block is located inside the groove, the locking block is semi-circular in shape with a semi-circular angle of 180°, and the locking block is made of rubber.

[0016] Furthermore, the rotating mechanism also includes a bracket, a connecting rod, a rotating ring, and a convex ring. The bracket is rotatably sleeved on one end of the inner shaft with a locking block, the connecting rod rotates on both sides of the bracket, the rotating ring rotates on the end of the connecting rod away from the bracket, and the convex ring surrounds the side of the rotating ring.

[0017] Furthermore, one end of the bracket is rotatably fitted inside the inner shaft groove, and this end of the bracket has a groove, which is nested with the swing block.

[0018] Furthermore, the rotating ring is located inside the slot of the pipe, and the rotating ring is circular in shape. The connecting rod is the connecting part between the rotating ring and the bracket. When the bracket swings, the rotating ring swings synchronously.

[0019] Furthermore, a circular ring rotates inside the slot of the pipe, and a rotating ball swings at the end of the circular ring near the rotating ring, while a hook swings at the end of the rotating ball away from the rotating ring.

[0020] Furthermore, the inside of the ring is hollow, and the rotating ball is located in the hollow part of the ring. The rotating ball and the hook are matched and the side of the rotating ball away from the ring rotates and rubs against the convex ring.

[0021] Furthermore, when the retaining ring is embedded inside the pipe groove, the hook and the hole at one end of the retaining ring are horizontally aligned.

[0022] Beneficial effects:

[0023] 1. By utilizing the fan blade located at the inlet end of the pipe, after the sewage enters the pipe, the side of the fan blade away from the inner shaft is provided with a groove. The groove is arc-shaped, and the sewage impacts the inside of the groove of the fan blade, which facilitates the rotation of the fan blade inside the pipe. When the fan blade rotates, the inner shaft rotates synchronously, so that this rotating mechanism can use the impact force generated by the sewage flow to drive the inner shaft to rotate.

[0024] 2. When the inner shaft rotates, the bellows frame rotates synchronously, and the outer collar of the bellows frame rotates synchronously. The collar is circular, which facilitates the scraper to rotate 360° inside the pipe. By utilizing the rotation of the scraper, impurities inside the pipe can be scraped, avoiding blockage inside the pipe. Thus, this rotating mechanism can perform rotational cleaning of impurities inside the pipe.

[0025] 3. When the locking block is not embedded in the groove of the bracket, the inner shaft rotates and the bracket as a whole is stationary. When the locking block is embedded in the groove of the bracket, the inner shaft can drive the bracket to swing through the locking block. At this time, the bracket drives the rotating ring to swing inside the slot of the pipe through the connecting rod.

[0026] 4. When the retaining ring is embedded in the retaining groove, the ring and the retaining ring are horizontally attached. When the rotating ring swings, the convex ring on the side of the rotating ring can rotate and rub against one side of the rotating ball. At this time, the rotating ball swings at an angle inside the ring. The rotating ball can drive the hook to swing and extend to the outside of the ring. At this time, the hook quickly embeds into the hole of the retaining ring. As the inner shaft continues to rotate, the inner shaft continuously drives the rotating ball to swing towards the side of the retaining ring through the bracket and the rotating ring. When the hook is stuck inside the retaining ring, the rotating ball cannot continue to rotate, so that after the sewage enters the inside, the water pressure of the sewage flow can further assist the tightness of the connection between the pipes.

[0027] 5. When the sewage stops flowing, the inner shaft stops rotating synchronously. The inner shaft can no longer drive the rotating ring through the support and connecting rod, so that the rotating ring is in a stationary state. At this time, it is convenient for the retaining ring to quickly disengage from the groove inside the pipe, so that this type of pipe can be easily replaced between pipes when further connections are added. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a side view of the pipe cross-section of the present invention.

[0030] Figure 3 This is a front view of the pipe cross-section of the present invention.

[0031] Figure 4 This is a front view of the inner shaft of the present invention.

[0032] Figure 5 This is a schematic diagram of the inner shaft side of the present invention.

[0033] Figure 6 This is a schematic diagram of the front structure of the rotating ring of the present invention.

[0034] Figure 7 This is a schematic diagram of the back structure of the rotating ring of the present invention.

[0035] Figure 8 This is a schematic diagram of the ring structure of the present invention.

[0036] Figure 9 This is a schematic diagram of the rotating sphere structure of the present invention.

[0037] Figure 1-9 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0038] Pipe, 101-Flange, 102-Snap ring, 2-Inner shaft, 201-Fan blade, 202-Corrugated frame, 203-Collar, 204-Scraper, 205-Clamping block, 3-Bracket, 301-Connecting rod, 302-Swivel ring, 303-Convex ring, 4-Ring, 401-Rotating sphere, 402-Hook. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0040] As attached Figure 1 To be continued Figure 9 As shown:

[0041] Example 1: A trenchless short section replacement jacking pipe includes a pipe 1, both ends of which are provided with flanges 101, one end of the pipe 1 is surrounded by a retaining ring 102, and the inside of the pipe 1 is provided with a rotating mechanism.

[0042] Wherein: pipe 1 and retaining ring 102, a groove is opened at the end of pipe 1 away from retaining ring 102, retaining ring 102 slides and nests with the groove, a hole is opened at the end of retaining ring 102 away from pipe 1, and the length of the groove is 2-4cm longer than the length of retaining ring 102;

[0043] Pipe 1 is a jacking pipe;

[0044] The retaining ring 102 slides and nests with the retaining groove, and the pipes 1 are connected through the nested retaining ring 102 and the retaining groove.

[0045] The end of pipe 1 equipped with the retaining ring 102 is the water inlet;

[0046] Flange 101 has bolts that pass through its interior. When connecting pipes 1, flanges 101 are connected in pairs, with bolts passing through the gaps between each pair of flanges 101.

[0047] Wherein: Pipe 1 is placed underground, and the retaining ring 102 is manually inserted into the groove. Then, flanges 101 are connected in pairs, and bolts are inserted through the inside of flanges 101 to facilitate the connection between pipes 1. Sewage is discharged through pipe 1, and sewage first enters the end of pipe 1 with retaining ring 102.

[0048] Example 2: Refer to the attached instruction manual Figure 1-5 It can be seen that the difference between Embodiment 2 and Embodiment 1 is that the rotating mechanism includes an inner shaft 2, a fan blade 201, a corrugated frame 202, a collar 203, a scraper 204, and a locking block 205. The inner shaft 2 rotates inside the pipe 1. The fan blade 201 is located at one end of the inner shaft 2 near the locking ring 102. The corrugated frame 202 surrounds the outside of the inner shaft 2. The collar 203 is fitted and slides on the outside of the corrugated frame 202. The scraper 204 swings at one end of the collar 203. The locking block 205 is located at the end of the inner shaft 2 away from the fan blade 201.

[0049] Among them: inner shaft 2 and fan blade 201, the fan blade 201 has a groove on the side away from the inner shaft 2, the groove is arc-shaped, the fan blade 201 is bent at 5-15°, and the diameter of the inner shaft 2 is one-tenth of the diameter of the pipe 1;

[0050] The diameter of the inner shaft 2 is one-tenth of the diameter of the pipe 1, so as to avoid the inner shaft 2 being too large and thus being inside the pipe 1, which would affect the overall use of the pipe 1;

[0051] The fan blade 201 is bent at 5-15°, which can increase the resistance of sewage to the fan blade 201, thereby assisting the fan blade 201 to rotate;

[0052] The fan blade 201 has a groove on the side away from the inner shaft 2. The groove is arc-shaped. When the fan blade 201 is located at the water inlet end of the pipe 1, the sewage enters the inside of the pipe 1 and impacts the inside of the groove of the fan blade 201, which facilitates the rotation of the fan blade 201 inside the pipe 1.

[0053] The corrugated frame 202 is wavy, with one side of the corrugated frame 202 embedded inside the inner shaft 2, and the collar 203 located on the other side of the corrugated frame 202.

[0054] One side of the corrugated frame 202 is embedded inside the inner shaft 2, which can limit the sliding distance of the collar 203 and prevent the collars 203 from colliding with each other.

[0055] The corrugated frame 202 is wavy. The shape of the corrugated frame 202 helps sewage and impurities to pass quickly through the inside of the pipe 1 during the rotation of the inner shaft 2.

[0056] The collar 203 and the scraper 204 are matched and multiple sets of the collar 203 and the scraper 204 are provided. The collar 203 is in the shape of a ring.

[0057] The collar 203 is circular, which allows the scraper 204 to rotate 360° inside the pipe 1. The rotation of the scraper 204 can clean the impurities inside the pipe 1 and prevent blockage inside the pipe 1.

[0058] The inner shaft 2 has a groove at one end near the locking block 205. The locking block 205 is located inside the groove. The locking block 205 is semi-circular in shape with a semi-circular angle of 180°. The locking block 205 is made of rubber.

[0059] Wherein: the fan blade 201 is located at the inlet end of the pipe 1. After the sewage enters the interior of the pipe 1, the fan blade 201 has a groove on the side away from the inner shaft 2. The groove is arc-shaped. The sewage impacts the groove of the fan blade 201, which facilitates the rotation of the fan blade 201 inside the pipe 1. When the fan blade 201 rotates, the inner shaft 2 rotates synchronously, so that this kind of rotating mechanism can use the impact force generated when the sewage flows to drive the inner shaft 2 to rotate.

[0060] When the inner shaft 2 rotates, the bellows frame 202 rotates synchronously, and the outer collar 203 of the bellows frame 202 rotates synchronously. The collar 203 is circular, which facilitates the scraper 204 to rotate 360° inside the pipe 1. By utilizing the rotation of the scraper 204, impurities inside the pipe 1 can be scraped, avoiding blockage inside the pipe 1. Thus, this rotating mechanism can perform rotational cleaning of impurities inside the pipe 1.

[0061] Example 3: Refer to the appendix of the instruction manual Figure 1-7It can be seen that the difference between Embodiment 2 and Embodiment 1 is that the rotating mechanism further includes a bracket 3, a connecting rod 301, a rotating ring 302 and a convex ring 303. The bracket 3 is rotatably sleeved on one end of the inner shaft 2 where the locking block 205 is provided. The connecting rod 301 rotates on both sides of the bracket 3. The rotating ring 302 rotates on the end of the connecting rod 301 away from the bracket 3. The convex ring 303 surrounds the side of the rotating ring 302.

[0062] Among them: bracket 3, one end of bracket 3 is rotatably fitted into the groove of inner shaft 2, and the groove at the end of bracket 3 is provided, and the groove at the end of bracket 3 is oscillatingly nested with the locking block 205;

[0063] When the inner shaft 2 rotates, the locking block 205 rotates synchronously. When the locking block 205 is embedded in the groove of the bracket 3, the inner shaft 2 can drive the bracket 3 to swing through the locking block 205.

[0064] When the locking block 205 is not embedded in the groove of the bracket 3, the inner shaft 2 rotates and the bracket 3 remains stationary.

[0065] The bracket 3 and the inner shaft 2 are nested in a movable manner by means of the locking block 205. Therefore, when the rotating ring 302 can no longer rotate, the bracket 3 is in a stationary state. The locking block 205 is made of rubber and deforms on the outside of the groove of the bracket 3. At this time, the inner shaft 2 can still rotate inside the pipe 1 by being driven by the fan blade 201.

[0066] The rotating ring 302 and the connecting rod 301 are located inside the groove of the pipe 1. The rotating ring 302 is circular. The connecting rod 301 is the connecting part between the rotating ring 302 and the bracket 3. When the bracket 3 swings, the rotating ring 302 swings synchronously.

[0067] The length of the groove of pipe 1 is 2-4 cm longer than the length of the retaining ring 102. Therefore, when the retaining ring 102 is embedded in the groove, the rotating ring 302 and the retaining ring 102 are horizontally aligned.

[0068] Wherein: when the locking block 205 is not embedded in the groove of the bracket 3, the inner shaft 2 rotates and the bracket 3 is in a stationary state. When the locking block 205 is embedded in the groove of the bracket 3, the inner shaft 2 can drive the bracket 3 to swing through the locking block 205. At this time, the bracket 3 drives the rotating ring 302 to swing inside the slot of the pipe 1 through the connecting rod 301.

[0069] Example 4: Refer to the appendix of the instruction manual Figure 1-9 It can be seen that the difference between Embodiment 4 and Embodiments 1-3 is that there is a rotating ring 4 inside the slot of the pipe 1, a rotating ball 401 swinging at the end of the ring 4 near the rotating ring 302, and a hook 402 swinging at the end of the rotating ball 401 away from the rotating ring 302.

[0070] Among them: a circular ring 4 and a rotating sphere 401, the interior of the circular ring 4 is hollow, the rotating sphere 401 is located in the hollow part of the circular ring 4, the rotating sphere 401 and the hook 402 are matched and the side of the rotating sphere 401 away from the circular ring 4 rotates and rubs against the convex ring 303.

[0071] Multiple sets of rotating spheres 401 and hooks 402 are provided together, and the number of holes on the side of the retaining ring 102 is twice the number of rotating spheres 401 and hooks 402, so that the hooks 402 can be quickly inserted into the holes of the retaining ring 102.

[0072] When the retaining ring 102 is embedded in the retaining groove, the ring 4 and the retaining ring 102 are in horizontal contact.

[0073] The side of the rotating sphere 401 away from the ring 4 rotates and rubs against the convex ring 303. When the ring 302 swings, the convex ring 303 on the side of the ring 302 can rotate and rub against one side of the rotating sphere 401. At this time, the rotating sphere 401 swings at an angle inside the ring 4.

[0074] When the hook 402 and the retaining ring 102 are embedded in the groove of the pipe 1, the holes at one end of the hook 402 and the retaining ring 102 are horizontally aligned.

[0075] Wherein: When the retaining ring 102 is embedded in the retaining groove, the ring 4 and the retaining ring 102 are horizontally attached. When the rotating ring 302 swings, the convex ring 303 on the side of the rotating ring 302 can rotate and rub against one side of the rotating ball 401. At this time, the rotating ball 401 swings at an angle inside the ring 4. The rotating ball 401 can drive the hook 402 to swing and extend to the outside of the ring 4. At this time, the hook 402 quickly embeds into the hole of the retaining ring 102. As the inner shaft 2 continues to rotate, the inner shaft 2 continuously drives the rotating ball 401 to swing toward the side of the retaining ring 102 through the bracket 3 and the rotating ring 302. When the hook 402 is stuck inside the retaining ring 102, the rotating ball 401 cannot continue to rotate, so that after the sewage enters the interior, the water pressure of the sewage flow can further assist the tightness of the connection between the pipes 1.

[0076] When the sewage stops flowing, the inner shaft 2 stops rotating synchronously. The inner shaft 2 can no longer drive the rotating ring 302 through the bracket 3 and connecting rod 301, so that the rotating ring 302 is stationary. At this time, it is convenient for the retaining ring 102 to quickly disengage from the groove inside the pipe 1, so that the pipe 1 can be quickly replaced between pipes when the connection is further increased.

Claims

1. A trenchless short-section replacement jacking pipe, comprising a pipe (1), characterized in that: The pipe (1) is provided with flanges (101) at both ends, and a retaining ring (102) is wrapped around one end of the pipe (1). The pipe (1) is provided with a rotating mechanism inside. The rotating mechanism also includes a bracket (3), a connecting rod (301), a rotating ring (302), and a convex ring (303). The bracket (3) is rotatably sleeved on one end of the inner shaft (2) which has a locking block (205). The inner shaft (2) has a groove at one end near the locking block (205). The locking block (205) is inside the groove. The locking block (205) is semi-circular in shape with a semi-circular angle of 180°. The locking block (205) is made of rubber. The connecting rod (301) rotates on both sides of the bracket (3). The rotating ring (302) rotates on the end of the connecting rod (301) away from the bracket (3). The convex ring (303) surrounds the side of the rotating ring (302). One end of the bracket (3) is rotatably fitted into the groove of the inner shaft (2), and the groove is provided at this end of the bracket (3). The groove at the end of the bracket (3) is oscillatingly nested with the locking block (205). The rotating ring (302) is located inside the slot of the pipe (1). The rotating ring (302) is circular. The connecting rod (301) is the connecting part between the rotating ring (302) and the bracket (3). When the bracket (3) swings, the rotating ring (302) swings synchronously. The pipe (1) has a groove at the end away from the retaining ring (102), the retaining ring (102) slides and nests with the groove, and the end of the retaining ring (102) away from the pipe (1) has a hole. The length of the groove is 2-4 cm longer than the length of the retaining ring (102). Flange (101), bolts pass through the inside of flange (101). When connecting pipes (1), flanges (101) are connected in pairs, and bolts pass through the gaps between flanges (101). Inside the slot of the pipe (1), there is a rotating ring (4), and a rotating ball (401) swings at one end of the ring (4) near the rotating ring (302), and a hook (402) swings at the other end of the rotating ball (401) away from the rotating ring (302). The inner part of the ring (4) is hollow, and the rotating ball (401) is located in the hollow part of the ring (4). The rotating ball (401) and the hook (402) are matched and the side of the rotating ball (401) away from the ring (4) rotates and rubs against the convex ring (303). When the hook (402) and the retaining ring (102) are embedded in the groove of the pipe (1), the holes at one end of the hook (402) and the retaining ring (102) are horizontally aligned.

2. The trenchless short section replacement jacking pipe according to claim 1, characterized in that: The rotating mechanism includes an inner shaft (2), a fan blade (201), a corrugated frame (202), a collar (203), a scraper (204), and a locking block (205). The inner shaft (2) rotates inside the pipe (1). The fan blade (201) is located at one end of the inner shaft (2) near the locking block (102). The corrugated frame (202) surrounds the outer side of the inner shaft (2). The collar (203) slides on the outer side of the corrugated frame (202). The scraper (204) swings at one end of the collar (203). The locking block (205) is located at one end of the inner shaft (2) away from the fan blade (201).

3. The trenchless short section replacement jacking pipe according to claim 2, characterized in that: The fan blade (201) has a groove on the side away from the inner shaft (2). The groove is arc-shaped, the fan blade (201) is bent at 5-15°, and the diameter of the inner shaft (2) is one-tenth of the diameter of the pipe (1). The corrugated frame (202) is wavy. One side of the corrugated frame (202) is embedded in the interior of the inner shaft (2), and the collar (203) is located on the other side of the corrugated frame (202).

4. The trenchless short section replacement jacking pipe according to claim 2, characterized in that: The collar (203) and scraper (204) are provided together, and multiple sets of collar (203) and scraper (204) are provided. The collar (203) is in the shape of a ring.

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