CN111075000B

CN111075000B - A maintenance of equipment for municipal administration blow off pipe

Info

Publication number: CN111075000B
Application number: CN202010005959.XA
Authority: CN
Inventors: 朱林凯; 朱颖颖; 陈巨钊
Original assignee: Wenzhou Hongtai Construction Co ltd
Current assignee: Wenzhou Hongtai Construction Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-12-15
Anticipated expiration: 2040-01-03
Also published as: CN111075000A

Abstract

The invention discloses maintenance equipment for a municipal sewage pipe, which relates to the technical field of urban building engineering construction, and the technical scheme of the maintenance equipment comprises a central rod, a back expansion rod and a connecting rod; the invention has inserting groove and waist type groove along the axial extension on the centre rod, the connecting rod is kept away from the one end of the back expansion pole and is inserted into the inserting groove, the round bar inserted into waist type groove is fixed on the connecting rod, also include the driving piece used for driving the round bar on the connecting rod to move along the length direction of waist type groove, there are thread grooves to place the annular groove and communicate and place the annular groove on the centre rod, the thread groove communicates with inserting groove, the driving piece includes the swivel becket that the whorl connects in the thread groove, one end of the swivel becket extends beyond the thread groove, another end of the swivel becket exerts the force moving along the length direction of waist type groove to the connecting rod, the invention has reduced the weight of the whole back expansion device, has reduced the energy that the work needs, has also avoided the easy problem of calculating bad of air.

Description

A maintenance of equipment for municipal administration blow off pipe

Technical Field

The invention relates to the technical field of urban building engineering construction, in particular to maintenance equipment for a municipal sewage pipe.

Background

Municipal pipeline engineering is an important component of municipal engineering and is an important infrastructure of cities. The municipal sewage pipe is mainly used for collecting and discharging domestic sewage and industrial sewage. After long-time use, the pipeline can appear phenomenons such as deformation and breakage, needs maintenance.

In the prior art, a chinese patent document with application publication No. CN108222221A discloses a maintenance process for municipal sewage pipes, which adopts equipment to break or cut the original pipe from the inside, squeeze the fragments of the original pipe into the surrounding soil, form pipe holes at the same time, and pull in the pipe of a new pipe synchronously to complete maintenance and update. The distance between the back expansion rod and the central shaft is adjustable, and the maximum distance between the back expansion rod and the central shaft is gradually increased in multiple back expansion to realize gradual back expansion.

However, the back-expansion device adopts a driving member to move one end of the connecting rod along the axial direction of the central shaft, and the driving member adopts a cylinder, an oil cylinder, a hydraulic cylinder and the like, which results in the following technical defects: the weight of the whole back expander is increased, and more energy is needed for driving the back expander to rotate; the drive member may be damaged by the broken pipe debris as it moves within the pipe.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides maintenance equipment for a municipal sewage pipe, which reduces the weight of the whole return expander, reduces the energy required during working and also avoids the problem that an air cylinder, a hydraulic cylinder and the like are easy to damage.

In order to achieve the purpose, the invention provides the following technical scheme: a maintenance device for a municipal sewage pipe comprises a central rod, a back expansion rod with one end hinged to the central rod, and a connecting rod hinged to the other end of the back expansion rod; open on well core rod has along axially extended insertion groove and waist type groove, insertion groove and waist type groove intercommunication, the connecting rod is kept away from the one end of back expansion pole and is inserted to the insertion inslot, and the fixed round bar that inserts to waist type inslot that is provided with on the connecting rod, still including being used for driving the driving piece that the length direction in waist type groove removed along the round bar on the connecting rod, it has the thread groove of placing the annular and placing the annular to communicate to open on well core rod, thread groove and insertion groove intercommunication, and the driving piece is including threaded connection in the thread groove swivel becket, and the one end of swivel becket extends to beyond the thread groove, and the other end of swivel becket exerts the power that the length direction in waist type groove removed to the connecting rod.

Through adopting above-mentioned technical scheme, only need be through rotatory swivel becket, the power that the length direction along waist type groove removed is applyed to the connecting rod to the one end of swivel becket, and because the round bar inserts to waist type inslot, the connecting rod all can rotate with returning the expander bar, thereby change the distance of returning the expander bar to well core rod, increase the whole diameter that can extrude and broken pipeline when returning the expander rotation, adopt the mode of this kind of physics to replace the cylinder, pneumatic cylinder etc., the weight of whole ware that expands back has been reduced, the required energy of during operation has been reduced, still avoided the cylinder, the problem of damage is calculated easily such as pneumatic cylinder. The mode of adopting threaded connection, the holding power to the connecting rod is strong, is convenient for return the stabilizer when expanding the pole.

The invention is further configured to: a plurality of back expansion rods are arranged on the central rod along the circumference in an array manner, and the connecting rod, the round rod and the waist-shaped groove are all arranged corresponding to the back expansion rods; the rotating ring is simultaneously abutted with the connecting rods.

Through adopting above-mentioned technical scheme, when the centre pole rotated and back expand the pipeline, a plurality of meeting expansion link extruded the pipeline together, played and strengthened the effect of back expanding efficiency.

The invention is further configured to: the one end of connecting rod orientation rotating ring articulates there is the piece of buckling, it has the one end male arc wall that supplies the rotating ring to buckle to go up to open, and the arc wall sets up with the axle center with the rotating ring.

Through adopting above-mentioned technical scheme, the straining piece is along well core rod axis removal all the time, and the one end alright stable of swivel becket inserts to the arc wall in like this, has strengthened the joint strength of swivel becket between to the straining piece to joint strength between swivel becket and the connecting rod has been strengthened.

The invention is further configured to: the insertion groove is communicated with the thread groove through a stabilizing hole, part of the entity of the fastening block is positioned in the stabilizing hole, and a sealing ring layer is fixedly arranged on the inner wall of the stabilizing hole.

Through adopting above-mentioned technical scheme, being provided with of stable hole does benefit to the removal of fastening piece stably, and the seal ring layer plays the effect of strengthening the leakproofness, avoids the foreign matter in the pipeline to enter into to the thread groove.

The invention is further configured to: and one end of the rotating ring, which exceeds the thread groove, is fixedly provided with an outer ring sleeve covering the placing ring groove, and when the rotating ring rotates relative to the central rod, the outer ring sleeve always covers the placing ring groove.

Through adopting above-mentioned technical scheme, intraductal foreign matter is blocked outside by outer ring cover, avoids the foreign matter to enter into in the thread groove.

The invention is further configured to: the outer ring sleeve is in threaded connection with a bolt, and one end of the bolt is abutted against the central rod to limit the relative rotation of the outer ring sleeve and the central rod.

By adopting the technical scheme, the outer ring sleeve can be rotated by loosening the bolt, and the outer ring sleeve and the central rod can be fixed by tightening the bolt.

The invention is further configured to: the front and rear protective plates are respectively positioned at the front end and the rear end of the connecting rod, a front spring used for pushing the front protective plate to the connecting rod is arranged in the front sliding groove, and a rear spring used for pushing the rear protective plate to the connecting rod is arranged in the rear sliding groove.

Through adopting above-mentioned technical scheme, preceding protection shield and back protection shield all play and avoid the foreign matter to enter into the insertion groove in, guarantee the smooth and easy of connecting rod removal.

The invention is further configured to: the middle of the central rod is provided with a grouting hole, and the front end of the central rod is provided with a guniting pipe arranged along the radial direction of the central rod.

Through adopting above-mentioned technical scheme, when using, the accessible carries out the slip casting to the injected hole, and the shotcrete pipe spouts mud in the drilling, plays the cooling and returns the expansion ware, carries the drill chip and arrives the earth's surface side by side, stabilizes the pore wall and reduces and need back the effect of drag force when returning and expanding.

The invention is further configured to: and a plurality of back expansion thorns are fixedly arranged on one side of the back expansion rod back to the connecting rod.

By adopting the technical scheme, the effect of enhancing the back expansion efficiency is achieved.

In conclusion, the rotating ring rotates to realize the rotation of the connecting rod, so that the back expansion rod moves, the rotating ring is in threaded connection and matching with the central rod, the connecting strength is high, devices such as an air cylinder and the like are not needed, the weight of the whole back expansion device is reduced, the energy required during working is reduced, and the problem that the air cylinder, the hydraulic cylinder and the like are easy to damage is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of a portion of the rotary ring and the recoil mechanism of the present invention;

FIG. 3 is a schematic cross-sectional view of a partial structure of the present invention with a set of back-expansion mechanisms hidden;

FIG. 4 is a schematic sectional view of a partial structure of the present invention;

fig. 5 is a schematic sectional view of a partial structure based on fig. 3.

Reference numerals: 1. a center pole; 2. a back-expanding mechanism; 3. a drive member; 4. a back expansion rod; 5. a fastening block; 6. back expanding the thorns; 7. inserting the groove; 8. a waist-shaped groove; 9. a round bar; 10. a stabilization well; 11. an arc-shaped slot; 12. a thread groove; 13. placing a ring groove; 14. a rotating ring; 15. an outer ring sleeve; 16. a bolt; 17. a seal ring layer; 18. a front sliding groove; 19. a rear sliding groove; 20. a front protective plate; 21. a rear protective plate; 22. a front spring; 23. a rear spring; 24. grouting holes; 25. a guniting pipe; 26. a connecting rod.

Detailed Description

The invention is further described with reference to the accompanying drawings.

Referring to fig. 1, this embodiment discloses a maintenance of equipment for municipal administration blow off pipe, including well core rod 1, there are two sets of mechanisms 2 that expand back along the circumference array on well core rod 1, and two sets of mechanisms 2 that expand back are located well core rod 1's both sides. The central rod 1 is also provided with a driving piece 3 for driving the back expansion mechanism 2 to move.

Referring to fig. 1 and 2, the back-expanding mechanism 2 includes a back-expanding rod 4 with one end hinged to the central rod 1, a connecting rod 26 hinged to the other end of the back-expanding rod 4, and a fastening block 5 hinged to one end of the connecting rod 26 far from the back-expanding rod 4. One side of the back expansion rod 4 back to the connecting rod 26 is fixedly provided with a plurality of back expansion thorns 6, so that the effect of enhancing the back expansion efficiency is achieved.

Referring to fig. 2 and 3, the central rod 1 is provided with an insertion groove 7 extending along the axial direction and waist-shaped grooves 8 located on two sides of the insertion groove 7, the insertion groove 7 is communicated with the waist-shaped grooves 8, one end of the connecting rod 26 far away from the back-expansion rod 4 is inserted into the insertion groove 7, the connecting rod 26 is fixedly provided with a round rod 9, two ends of the round rod 9 are respectively inserted into the two waist-shaped grooves 8, the round rod 9 is limited to move along the axial direction of the central rod 1, and therefore one end of the connecting rod 26 inserted into the insertion groove 7 can only move along the axial direction of the central rod 1. When the end of the connecting rod 26 remote from the back-expanding rod 4 moves to the front end of the central rod 1, the maximum distance from the back-expanding rod 4 to the central rod 1 increases, increasing the diameter of the pipeline that can be back-expanded.

Referring to fig. 2 and 3, the center rod 1 is provided with a stabilizing hole 10 into which the fastening block 5 is inserted, and the front end of the stabilizing hole 10 communicates with the insertion groove 7. An arc-shaped groove 11 is formed in one end, away from the connecting rod 26, of the fastening block 5, and the axis of the arc-shaped groove 11 is the axis of the central rod 1.

Referring to fig. 3 and 4, the central rod 1 is provided with a thread groove 12 communicated with the stabilizing hole 10, and the thread groove 12 is annularly arranged and coaxially arranged with the central rod 1. The central rod 1 is also provided with a placing ring groove 13, and the front end of the placing ring groove 13 is communicated with the rear end of the thread groove 12.

Referring to fig. 2 and 4, the driving member 3 includes a rotating ring 14 screwed into the threaded groove 12, a front end of the rotating ring 14 is inserted into the arc-shaped groove 11, and a rear end of the rotating ring 14 penetrates through the threaded groove 12 to the placing ring groove 13. When the rotating ring 14 rotates and moves forward in the axial direction of the central rod 1, the rotating ring 14 moves forward against the two fastening blocks 5, thereby achieving simultaneous forward movement of the ends of the two connecting rods 26 away from the back-expanding rod 4, changing the maximum distance between the back-expanding rod 4 and the central rod 1. The two back expansion rods 4 can be driven to move by only one rotating ring 14, and the advantages of cost saving and reasonable design are achieved. Because the fastening block 5 moves along the axis of the central rod 1 all the time, one end of the rotating ring 14 is inserted into the arc-shaped groove 11, so that one end of the rotating ring 14 is more stable, the connection strength of the rotating ring 14 to the fastening block 5 is enhanced, and the connection strength between the rotating ring 14 and the connecting rod 26 is enhanced.

Referring to fig. 3 and 4, an outer ring sleeve 15 covering the placing ring groove 13 is fixedly arranged at one end of the rotating ring 14 beyond the thread groove 12, and the outer ring sleeve 15 always covers the placing ring groove 13 when the rotating ring 14 rotates relative to the center rod 1. Foreign matters in the pipe are blocked outside by the outer ring sleeve 15, and the foreign matters are prevented from entering the thread groove 12. The outer ring 15 is threadedly connected with a plurality of bolts 16, one end of each bolt 16 abuts against the central rod 1 to limit the relative rotation of the outer ring 15 and the central rod 1, the outer ring 15 can be rotated by loosening the bolts 16, and the outer ring 15 and the central rod 1 can be fixed by tightening the bolts 16.

Referring to fig. 3 and 4, a sealing ring layer 17 is further fixedly arranged on the inner wall of the stabilizing hole 10 at a position close to the insertion groove 7, and the sealing ring layer 17 plays a role in enhancing the sealing performance and prevents foreign matters in the pipeline from entering the thread groove 12.

Referring to fig. 5, the central rod 1 is provided with a front sliding groove 18 and a rear sliding groove 19 communicating with the insertion slot 7, a front protection plate 20 and a rear protection plate 21 for blocking the opening of the insertion slot 7 are respectively slidably provided in the front sliding groove 18 and the rear sliding groove 19, the front protection plate 20 and the rear protection plate 21 are respectively provided at front and rear sides of the connecting rod 26, a front spring 22 for urging the front protection plate 20 toward the connecting rod 26 is provided in the front sliding groove 18, and a rear spring 23 for urging the rear protection plate 21 toward the connecting rod 26 is provided in the rear sliding groove 19. Regardless of the state of the connecting rod 26, the front spring 22 and the rear spring 23 are always in a contracted state, and the front fender 20 and the rear fender 21 are in contact with both sides of the connecting rod 26 to block the opening of the insertion slot 7. The front protection plate 20 and the rear protection plate 21 both prevent foreign matters from entering the insertion groove 7, and ensure smooth movement of the connection rod 26.

Referring to fig. 4, a grouting hole 24 is formed in the middle of the central rod 1, a guniting pipe 25 arranged along the radial direction of the central rod 1 is formed at the front end of the central rod 1, when the drilling tool is used, grouting can be performed on the grouting hole 24, and mud is sprayed into a drill hole by the guniting pipe 25, so that the drilling tool plays a role in cooling a back-expanding device, carrying drill cuttings and discharging, stabilizing the wall of the hole 10 and reducing the back-dragging force required during back expansion.

The concrete working condition effects are as follows:

when the back expander is used for back expanding the pipeline, the back expander can rotate to enable the back expander rods 4 to extrude and crush the inner wall of the pipeline. After the first stage of back expansion is completed, the diameter of the back expanded pipeline needs to be increased, at the moment, the bolt 16 is loosened, the outer ring sleeve 15 is rotated, the rotating ring 14 and the outer ring sleeve 15 rotate together and move forwards along the axial direction of the central rod 1, the fastening block 5 is pushed by the rotating ring 14 and moves forwards, so that the connecting rod 26 is moved, finally, the back expanded rod 4 is moved, the maximum distance between the back expanded rod 4 and the central rod 1 is increased, the diameter of the pipeline which can be extruded and crushed when the whole back expander rotates is increased, and then the bolt 16 is screwed to fix the back expanded pipeline. The invention adopts the physical mode to replace an air cylinder, a hydraulic cylinder and the like, reduces the weight of the whole back expander, reduces the energy required during the work, and also avoids the problem that the air cylinder, the hydraulic cylinder and the like are easy to be damaged. The threaded connection mode is adopted, the supporting force for the connecting rod 26 is strong, and the back expansion rod 4 is convenient to stabilize during back expansion.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. A maintenance device for a municipal sewage pipe comprises a central rod (1), a back expansion rod (4) with one end hinged to the central rod (1), and a connecting rod (26) hinged to the other end of the back expansion rod (4); open on well core rod (1) and have along axially extending's insertion groove (7) and waist type groove (8), insertion groove (7) and waist type groove (8) intercommunication, connecting rod (26) are kept away from the one end of back expander rod (4) and are inserted to in insertion groove (7), and fixed being provided with on connecting rod (26) inserts round bar (9) to waist type groove (8) in, still including being used for driving piece (3) that round bar (9) on connecting rod (26) removed along the length direction in waist type groove (8), characterized by: the center rod (1) is provided with a placing ring groove (13) and a thread groove (12) communicated with the placing ring groove (13), the thread groove (12) is communicated with the insertion groove (7), the driving part (3) comprises a rotating ring (14) in threaded connection with the thread groove (12), one end of the rotating ring (14) extends out of the thread groove (12), and the other end of the rotating ring (14) applies a force to the connecting rod (26) to move along the length direction of the waist-shaped groove (8); the front protective plate (20) and the rear protective plate (21) are respectively positioned at the front end and the rear end of the connecting rod (26), a front spring (22) used for pushing the front protective plate (20) to the connecting rod (26) is arranged in the front sliding groove (18), and a rear spring (23) used for pushing the rear protective plate (21) to the connecting rod (26) is arranged in the rear sliding groove (19); the middle of the central rod (1) is provided with a grouting hole (24), and the front end of the central rod (1) is provided with a guniting pipe (25) which is radially arranged along the central rod (1).

2. The maintenance facility for municipal sewage pipes according to claim 1, wherein: a plurality of back expansion rods (4) are arrayed on the central rod (1) along the circumference, and the connecting rods (26), the round rods (9) and the waist-shaped grooves (8) are all arranged corresponding to the back expansion rods (4); the rotating ring (14) is simultaneously abutted with a plurality of connecting rods (26).

3. The maintenance facility for municipal sewage pipes according to claim 2, wherein: one end of the connecting rod (26) facing the rotating ring (14) is hinged with a fastening block (5), the fastening block (5) is provided with an arc-shaped groove (11) for inserting one end of the rotating ring (14), and the arc-shaped groove (11) and the rotating ring (14) are coaxially arranged.

4. The maintenance facility for municipal sewage pipes according to claim 3, wherein: the insertion groove (7) is communicated with the thread groove (12) through a stable hole (10), part of the entity of the fastening block (5) is positioned in the stable hole (10), and a sealing ring layer (17) is fixedly arranged on the inner wall of the stable hole (10).

5. The maintenance facility for municipal sewage pipes according to claim 1, wherein: an outer ring sleeve (15) covering the placing ring groove (13) is fixedly arranged at one end, exceeding the thread groove (12), of the rotating ring (14), and when the rotating ring (14) rotates relative to the central rod (1), the outer ring sleeve (15) always covers the placing ring groove (13).

6. The maintenance facility for municipal sewage pipes according to claim 5, wherein: the outer ring sleeve (15) is connected with a bolt (16) in a threaded mode, one end of the bolt (16) is abutted to the central rod (1) to limit relative rotation of the outer ring sleeve (15) and the central rod (1).

7. The maintenance facility for municipal sewage pipes according to claim 1, wherein: and a plurality of back-expanding thorns (6) are fixedly arranged on one side of the back-expanding rod (4) back to the connecting rod (26).