An auxiliary tool for installing municipal drainage pipes

Abstract

This invention discloses an auxiliary tool for municipal drainage pipe installation, relating to the field of pipe installation assistance. It includes: a housing; a lead screw rotatably connected to the housing; a guide post fixed to the housing; a guide sleeve slidably connected to the guide post and threadedly connected to the lead screw; an arc-shaped support plate fixed to the guide sleeve; a transmission component adapted to the lead screw on the housing, driving the lead screw to rotate via the transmission component; and an unlocking mechanism on the housing, allowing manual rotation of the lead screw when power is off. A bracket fixed to the housing, with a support mechanism on the bracket, provides stable support for the device. This invention, through the support mechanism, can solve the problems of soft soil subsidence and overturning instability. The separate hinged design of the base and foldable side wing grounding plate allows the grounding area of ​​the device to be freely adjusted according to the pipe diameter and foundation bearing capacity, fundamentally reducing uneven settlement of soft soil foundations.

Description

Technical Field

[0001] This invention relates to the field of pipeline installation assistance, specifically an auxiliary tool for the installation of municipal drainage pipelines. Background Technology

[0002] Municipal drainage pipes are the core carriers of urban municipal drainage systems. They are specialized pipelines used to collect and transport urban rainwater, domestic sewage, and industrial wastewater, and are a core component of urban stormwater and sewage separation networks and combined sewer systems. Their core requirements are pressure resistance, impermeability, corrosion resistance, good water permeability, resistance to uneven settlement, and long service life. Municipal drainage pipe auxiliary tools focus on the core procedures of pipe installation, functionally divided into positioning, hoisting, alignment, sealing, and inspection. Among these, the pipe laying and stabilizing auxiliary tools use a liftable mechanical support structure to fix the pipe, replacing traditional shims for stabilization. This allows for precise fine-tuning of the pipe elevation, preventing pipe displacement and settlement during joint connection.

[0003] The core design purpose of the pipeline stabilizing support is to replace traditional bricks and concrete blocks, so as to achieve precise elevation adjustment, fixed posture, and prevention of displacement and settlement during pipeline installation, and ensure pipeline coaxiality and installation accuracy.

[0004] Currently, in the complex on-site conditions and full-process construction of municipal engineering projects, the foundations of municipal drainage ditches are mostly soft soil, silty soil, and backfill soil. Especially in the rainy areas of the south and the high-salinity coastal areas, the foundations often have high moisture content and insufficient bearing capacity. Conventional pipe supports mostly use small flat bases with small grounding areas and high grounding pressure, which cannot distribute the pipe load. When the support is subjected to single-point stress, uneven settlement, sinking, and tilting are very likely to occur. When the foundation is soaked and softened during the rainy season, the support may even sink during a single alignment process. Ultimately, this leads to excessive deviations in the pipe design slope and elevation, misalignment of the spigot and socket exceeding the allowable value, failure of the rubber ring seal, and a significant increase in leakage rate during the water tightness test, requiring rework and rectification. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary tool for the installation of municipal drainage pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary tool for installing municipal drainage pipes, comprising: a housing, and further comprising:

[0007] A lead screw is rotatably connected to a housing, and a guide post is fixed to the housing. A guide sleeve, threadedly connected to the lead screw, is slidably connected to the guide post, and an arc-shaped support is fixed to the guide sleeve. A transmission component adapted to the lead screw is provided on the housing, and the lead screw is driven to rotate through the transmission component; and,

[0008] An unlocking mechanism is provided on the housing, which allows manual rotation of the lead screw when power is off. A bracket is fixed on the housing, and a support mechanism is provided on the bracket to provide stable support for the device.

[0009] In an optional embodiment, the transmission component includes: a support frame fixed on the housing, a servo motor fixed on the support frame via a mounting plate, a shaft rotatably connected to the housing via two bearings, the shaft being coaxially fixed with the servo motor, a worm gear fixed on the shaft, and a worm wheel meshing with the worm gear fixed on the lead screw.

[0010] In an optional embodiment, the guide post is provided with a groove, and a sliding plate that is slidably connected to the groove is fixed on the guide sleeve.

[0011] In an optional embodiment, the unlocking mechanism includes: a mounting box fixed on a support frame, a drive shaft rotatably connected to the mounting box, a bevel gear a fixed at one end of the shaft inside the mounting box, and a bevel gear b meshing with the bevel gear a fixed on the drive shaft, the mounting box having a channel communicating with the interior, and a groove communicating with the channel, with a baffle slidably connected in the groove, an elastic sheet fixed between the baffle and the groove, a positioning groove at one end of the drive shaft, an operating shaft on the mounting box, and a positioning plate adapted to the positioning groove fixed at one end of the operating shaft.

[0012] In an optional embodiment, the support mechanism includes: a threaded rod fixed to a bracket, with a base fixed to the other end of the threaded rod; a support rod rotatably connected to the base via a plurality of hinge seats; a ground plate rotatably connected to one end of the support rod; an mounting sleeve slidably fitted onto the threaded rod; a spring fitted onto the threaded rod; one end of the spring being fixed to the base; and the other end of the spring abutting against the mounting sleeve; a nut threadedly connected to the threaded rod abutting against the mounting sleeve; and a connecting rod hinged to the mounting sleeve, with the other end of the connecting rod hinged to the support rod.

[0013] In an optional embodiment, a pressing plate is fixed on the positioning plate, and one side of the baffle is provided with a chamfered slope, and the chamfered slope of the baffle is adapted to the slope of the pressing plate.

[0014] In an optional embodiment, two positioning rods are fixed on the positioning groove, and a positioning hole adapted to the positioning rods is opened at one end of the operating shaft, and a crank handle is fixed at one end of the operating shaft.

[0015] In an optional embodiment, a guide rod is fixed on the base, and a guide sleeve that slides through the guide rod is fixed on the mounting sleeve.

[0016] In an optional embodiment, a number of reinforcing ribs are fixed between the arc-shaped support and the guide sleeve.

[0017] In an optional embodiment, the base plate is fixed with anti-slip teeth, and the central axis of the base is collinear with the central axis of the threaded rod. The base plate is provided with a reserved hole.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the setting of a support mechanism, can solve the problems of soft soil subsidence and overturning instability. The separate hinged design of the base and the foldable side wing grounding plate allows the grounding area of ​​the device to be freely adjusted according to the pipe diameter and the bearing capacity of the foundation, thereby reducing the uneven settlement of soft soil foundations from the source and controlling the amount of subsidence under heavy load.

[0020] 2. This invention enables remote control through the servo motor. Workers can make remote adjustments using a ground-based tablet terminal, eliminating the need for workers to descend into deep trenches or narrow spaces, thus significantly reducing worker safety risks. Utilizing the self-locking structure of the worm gear, the equipment will not slip when powered off or under heavy load, further enhancing its safety redundancy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0024] Figure 4 This is a schematic diagram showing the relationship between the operating shaft and the mounting box of the present invention;

[0025] Figure 5 for Figure 4 Enlarged schematic diagram of the structure of region B in the middle;

[0026] Figure 6 This is a side sectional view of the guide post and guide sleeve of the present invention;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the structure of region C in the middle;

[0028] Figure 8 This is a side sectional view of the housing and mounting box of the present invention;

[0029] Figure 9 for Figure 8 Enlarged schematic diagram of the structure of region D in the middle;

[0030] Figure 10 This is a side sectional view of the mounting box structure of the present invention;

[0031] Figure 11 for Figure 10 Enlarged schematic diagram of the structure of region E in the middle;

[0032] Figure 12 This is a side view of the structure of the present invention.

[0033] In the diagram: 1. Housing; 2. Lead screw; 3. Guide post; 4. Guide sleeve; 5. Arc-shaped support plate; 6. Transmission component; 7. Unlocking mechanism; 8. Bracket; 9. Support mechanism; 10. Support frame; 11. Mounting plate; 12. Servo motor; 13. Shaft; 14. Worm gear; 15. Worm wheel; 16. Slide groove; 17. Slide plate; 18. Drive shaft; 19. Bevel gear a; 20. Bevel gear b; 21. Channel; 22. Groove; 23. Baffle; 24. Elastic sheet; 25. Positioning groove; 26. Operating shaft; 27. Positioning plate; 28. Threaded rod; 29. ​​Base; 30. Hinge seat; 31. Support rod; 32. Grounding plate; 33. Mounting sleeve; 34. Spring; 35. Nut; 36. Connecting rod; 37. Extrusion plate; 38. Positioning rod; 39. Positioning hole; 40. Handle; 41. Guide rod; 42. Guide sleeve; 43. Reinforcing rib; 44. Reserved hole; 45. Mounting box. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 12 The illustrated auxiliary tool for installing municipal drainage pipes includes: a housing 1; a lead screw 2 rotatably connected to the housing 1; a guide post 3 fixed to the housing 1; a guide sleeve 4 slidably connected to the guide post 3 and threadedly connected to the lead screw 2; an arc-shaped support 5 fixed to the guide sleeve 4; several reinforcing ribs 43 fixed between the arc-shaped support 5 and the guide sleeve 4; a transmission component 6 adapted to the lead screw 2 on the housing 1, driving the lead screw 2 to rotate through the transmission component 6; and an unlocking mechanism 7 on the housing 1, manually driving the lead screw 2 to rotate when the power is off; a bracket 8 fixed to the housing 1, and a support mechanism 9 on the bracket 8, used to stably support the device.

[0036] In this scheme, the support mechanism 9 is placed in the foundation pit. Then, the support mechanism 9 is used to unfold several grounding plates 32 to form a support effect for the whole, which plays a role in multi-point force-bearing and stable support. The transmission component 6 drives the screw 2 to rotate, which drives the arc-shaped support plate 5 to rise and fall to achieve the purpose of adjusting the height of the municipal drainage pipe. When the transmission component 6 is de-energized, the height can be manually adjusted by unlocking the component, which can cope with emergencies such as power outages on site.

[0037] It should be noted that personnel lay a geotextile buffer layer in the foundation pit and place the support mechanism 9 on the geotextile buffer layer to prevent slipping.

[0038] The transmission component 6 includes: a support frame 10 fixed on the housing 1, and a servo motor 12 fixed on the support frame 10 via a mounting plate 11; a shaft 13 rotatably connected to the housing 1 via two bearings, and the shaft 13 is coaxially fixed with the servo motor 12; a worm gear 14 is fixed on the shaft 13; and a worm wheel 15 meshing with the worm gear 14 is fixed on the lead screw 2.

[0039] In this solution, the operator starts the servo motor 12, which drives the shaft 13 to rotate, causing the worm gear 14 to rotate synchronously. The meshing transmission force between the worm gear 14 and the worm wheel 15 drives the lead screw 2 to rotate. The threaded transmission force between the lead screw 2 and the guide sleeve 4 then drives the guide sleeve 4 to move upward along the guide post 3, so that the arc-shaped support 5 can finely adjust the height of the municipal drainage pipe, greatly improving the adjustment accuracy and eliminating the need for manual calibration.

[0040] It should be noted that the servo motor 12 enables remote operation, and can be remotely adjusted via a ground-based tablet terminal, eliminating the need for workers to go down into the trench to work in deep trenches and narrow spaces, thus significantly reducing safety risks.

[0041] It should also be noted that by utilizing the self-locking structure of the worm gear 15 and worm 14, the worm will not slip under power failure or heavy load conditions, thus improving safety redundancy.

[0042] The guide post 3 has a groove 16, and the guide sleeve 4 has a slide plate 17 that is slidably connected to the groove 16. The groove 16 and the slide plate 17 provide guidance for the lifting and lowering movement of the guide sleeve 4, ensuring that the lifting and lowering of the guide sleeve 4 maintains relative smoothness and stability.

[0043] In this solution, in order to improve the strength of the housing 1, a support frame 10 is added to the housing 1 to further improve the overall structural strength and facilitate the installation and fixing of the servo motor 12 and the mounting box 45, thereby greatly improving the convenience of subsequent maintenance.

[0044] Furthermore, the unlocking mechanism 7 includes: a mounting box 45 fixed on the support frame 10; a drive shaft 18 rotatably connected to the mounting box 45; a bevel gear a19 fixed at one end of the shaft 13 located inside the mounting box 45; a bevel gear b20 meshing with the bevel gear a19 fixed on the drive shaft 18; a channel 21 communicating with the interior of the mounting box 45; a groove 22 communicating with the channel 21; and a baffle 23 slidably connected within the groove 22, with the baffle 23 and the groove 22 being fixed together. The device includes an elastic sheet 24, a positioning groove 25 at one end of the drive shaft 18, an operating shaft 26 on the mounting box 45, and a positioning plate 27 that matches the positioning groove 25 fixed at one end of the operating shaft 26. Two positioning rods 38 are fixed on the positioning groove 25, and a positioning hole 39 that matches the positioning rods 38 is provided at one end of the operating shaft 26. The addition of the positioning hole 39 and the positioning rods 38 improves the stability of the operating shaft 26 when driving the drive shaft 18 to rotate. A crank 40 is fixed at one end of the operating shaft 26 to facilitate the rotation of the operating shaft 26 by personnel.

[0045] The positioning plate 27 is fixed with an extrusion plate 37. One side of the baffle 23 is set with a chamfered slope, and the chamfered slope of the baffle 23 is adapted to the slope of the extrusion plate 37. By using the slope of the extrusion plate 37, it can better extrude and transmit force with the baffle 23, thereby pushing the baffle 23 into the groove 22. When no manual drive is required, the baffle 23 blocks and protects the channel 21.

[0046] Specifically, when the power is completely off, the servo motor 12 can be rotated manually. Because the rotor has a built-in permanent magnet, there will be a uniform, stuttering positioning torque when it rotates. The resistance is slightly greater than that of an asynchronous motor, but it can be driven manually to achieve manual rotation of the output shaft of the servo motor 12. This is a conventional setting in this field, so it will not be described in detail here.

[0047] It should be noted that, thanks to the unlocking mechanism 7, even in the event of a sudden power outage at the construction site, the arc-shaped support tile 5 can still be manually driven to lift and lower, ensuring that the height of the drainage pipe can be precisely adjusted even without power supply. This effectively addresses the inconvenience caused by power outages, ensuring the smooth progress of construction and the stability and reliability of construction quality.

[0048] It should also be noted that when using the servo motor 12 to adjust the height of the arc-shaped support 5, the two baffles 23 form a shielding protection for the channel 21. When manual driving is required, the operating shaft 26 is inserted into the channel 21. The inclined surface of the operating shaft 26 must be aligned with the inclined surface of the baffle 23 and inserted into the channel 21 to achieve accurate and correct engagement and positioning with the transmission shaft 18.

[0049] In this scheme, the operator takes the operating shaft 26 and aligns it with the inclined surface of the extrusion plate 37 and the inclined surface of the baffle 23. The operator inserts the operating shaft 26 into the channel 21, causing the positioning plate 27 to engage with the positioning groove 25 and the positioning hole 39 to engage with the positioning rod 38. This completes the docking of the operating shaft 26 with the transmission shaft 18. The operator can then turn the crank handle 40 to rotate the operating shaft 26, which in turn drives the transmission shaft 18 to rotate synchronously. The meshing transmission force between the bevel gear b20 and the bevel gear a19 drives the shaft body 13 to rotate, which in turn drives the guide sleeve 4 and the arc-shaped support 5 to move up and down.

[0050] Example 2: Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 10 and Figure 12 This embodiment further explains Embodiment 1, the difference being that it discloses a support method for extended hinges.

[0051] Specifically, the support mechanism 9 includes: a threaded rod 28 fixed on the bracket 8, and a base 29 fixed at the other end of the threaded rod 28. A support rod 31 is rotatably connected to the base 29 through several hinge seats 30. A ground plate 32 is rotatably connected to one end of the support rod 31. An installation sleeve 33 is slidably sleeved on the threaded rod 28. A spring 34 is sleeved on the threaded rod 28. One end of the spring 34 is fixed to the base 29, and the other end of the spring 34 abuts against the installation sleeve 33. A nut 35 is threadedly connected to the threaded rod 28 and abuts against the installation sleeve 33. A connecting rod 36 is hinged to the installation sleeve 33, and the other end of the connecting rod 36 is hinged to the support rod 31.

[0052] The base 29 is fixed with a guide rod 41, and the mounting sleeve 33 is fixed with a guide sleeve 42 that slides through the guide rod 41. The addition of the guide rod 41 and the guide sleeve 42 serves to guide the mounting sleeve 33 and ensure that the guide sleeve 42 maintains vertical movement in a limited state when it moves.

[0053] It should be noted that the support mechanism 9 can solve the problems of soft soil subsidence and overturning instability. The separate hinged design of the base 29 and the foldable side wing grounding plate 32 allows the grounding area of ​​the device to be freely adjusted according to the pipe diameter and the bearing capacity of the foundation, thereby reducing the uneven settlement of the soft soil foundation from the source and controlling the amount of subsidence under heavy load.

[0054] Anti-slip teeth are fixed on the ground plate 32, and the central axis of the base 29 is collinear with the central axis of the threaded rod 28. The ground plate 32 is provided with a reserved hole 44. The reserved hole 44 is designed to adapt to various working conditions. In soft soil foundations and steep mountainous conditions, short anchor rods and steel pins can be driven through the reserved hole 44 for fixing, which can completely solve the problems of pipe slippage and support 8 overturning.

[0055] In this scheme, the nut 35 is rotated manually using a tool. The thread transmission between the nut 35 and the threaded rod 28 causes the mounting sleeve 33 to move downward after being subjected to force. The transmission action of the connecting rod 36 causes the support rod 31 to be rotated along the axis of the hinge seat 30 after being subjected to force, until the angle of the support rod 31 is straightened to a suitable position. Then, anchor rods and other fixing tools are taken and passed through the reserved hole 44 to strengthen the fixation of the device.

[0056] When multiple support rods 31 need to be folded, the contact with the mounting sleeve 33 is released by rotating the nut 35. The elasticity of the spring 34 is used to spring the mounting sleeve 33 upward and reset it, thereby causing multiple support rods 31 to flip upward and thus completing the folding of the support rods 31.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tool for installing municipal drainage pipes, comprising: Shell (1); Its characteristic is that it further includes: A lead screw (2) is rotatably connected to the housing (1), and a guide post (3) is fixed on the housing (1). A guide sleeve (4) threadedly connected to the lead screw (2) is slidably connected to the guide post (3), and an arc-shaped support plate (5) is fixed on the guide sleeve (4). A transmission component (6) adapted to the lead screw (2) is provided on the housing (1), and the lead screw (2) is driven to rotate through the transmission component (6); and, An unlocking mechanism (7) is provided on the housing (1). The unlocking mechanism (7) is used to manually drive the lead screw (2) to rotate when the power is off. A bracket (8) is fixed on the housing (1), and a support mechanism (9) is provided on the bracket (8). The support mechanism (9) is used to stably support the device.

2. The auxiliary tool for installing municipal drainage pipes according to claim 1, characterized in that: The transmission component (6) includes: a support frame (10) fixed on the housing (1), and a servo motor (12) fixed on the support frame (10) via a mounting plate (11), and a shaft (13) rotatably connected to the housing (1) via two bearings, and the shaft (13) is coaxially fixed with the servo motor (12), a worm (14) is fixed on the shaft (13), and a worm wheel (15) meshing with the worm (14) is fixed on the lead screw (2).

3. The auxiliary tool for installing municipal drainage pipes according to claim 1, characterized in that: The guide post (3) is provided with a slide groove (16), and the guide sleeve (4) is fixed with a slide plate (17) that is slidably connected to the slide groove (16).

4. The auxiliary tool for installing municipal drainage pipes according to claim 2, characterized in that: The unlocking mechanism (7) includes: a mounting box (45) fixed on a support frame (10), a drive shaft (18) rotatably connected to the mounting box (45), a bevel gear a (19) fixed at one end of the shaft (13) inside the mounting box (45), and a bevel gear b (20) meshing with the bevel gear a (19) fixed on the drive shaft (18), a channel (21) communicating with the interior is provided on the mounting box (45), and a groove (22) communicating with the channel (21) is provided on the mounting box (45), and a baffle (23) is slidably connected in the groove (22), and an elastic sheet (24) is fixed between the baffle (23) and the groove (22), a positioning groove (25) is provided at one end of the drive shaft (18), an operating shaft (26) is provided on the mounting box (45), and a positioning plate (27) adapted to the positioning groove (25) is fixed at one end of the operating shaft (26).

5. The auxiliary tool for installing municipal drainage pipes according to claim 1, characterized in that: The support mechanism (9) includes: a threaded rod (28) fixed on the bracket (8), and a base (29) fixed at the other end of the threaded rod (28). A support rod (31) is rotatably connected to the base (29) through a plurality of hinge seats (30). A ground plate (32) is rotatably connected to one end of the support rod (31). An installation sleeve (33) is slidably sleeved on the threaded rod (28). A spring (34) is sleeved on the threaded rod (28). One end of the spring (34) is fixed to the base (29), and the other end of the spring (34) abuts against the installation sleeve (33). A nut (35) that abuts against the installation sleeve (33) is threadedly connected to the threaded rod (28). A connecting rod (36) is hinged on the installation sleeve (33), and the other end of the connecting rod (36) is hinged to the support rod (31).

6. The auxiliary tool for installing municipal drainage pipes according to claim 4, characterized in that: An extrusion plate (37) is fixed on the positioning plate (27). One side of the baffle (23) is set with a chamfered slope, and the chamfered slope of the baffle (23) is adapted to the slope of the extrusion plate (37).

7. The auxiliary tool for installing municipal drainage pipes according to claim 4, characterized in that: Two positioning rods (38) are fixed on the positioning groove (25), and a positioning hole (39) adapted to the positioning rods (38) is opened at one end of the operating shaft (26), and a crank (40) is fixed at one end of the operating shaft (26).

8. An auxiliary tool for installing municipal drainage pipes according to claim 5, characterized in that: A guide rod (41) is fixed on the base (29), and a guide sleeve (42) that slides through the guide rod (41) is fixed on the mounting sleeve (33).

9. An auxiliary tool for installing municipal drainage pipes according to claim 1, characterized in that: Several reinforcing ribs (43) are fixed between the arc-shaped support (5) and the guide sleeve (4).

10. An auxiliary tool for installing municipal drainage pipes according to claim 5, characterized in that: The ground plate (32) is fixed with anti-slip teeth, and the central axis of the base (29) is collinear with the central axis of the threaded rod (28). The ground plate (32) is provided with a reserved hole (44).

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