An integrated concrete casting formwork system for an underground utility tunnel

By using crimp oscillation components in the concrete pouring formwork system of the underground integrated pipe corridor, the concrete is subject to the gravity and initial velocity oscillation of the concrete to discharge bubbles, the problem of oscillation in the existing technology is solved, and the compactness of the concrete and the durability of the pipe corridor are improved.

CN120193548BActive Publication Date: 2025-08-05YANCHENG INST OF TECH +1
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Patent Information

Application Number
CN202510662363.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2025-08-05
Estimated Expiration
2045-05-22

AI Technical Summary

Technical Problem

The existing concrete pouring formwork system for the concrete of the existing underground comprehensive pipeline corridor requires the use of additional equipment to oscillate the concrete during the pouring process to ensure the construction quality, and the steps are cumbersome.

Method used

An integrated concrete pouring formwork system is designed to cast concrete in the cavity formed between the first baffle and the second baffle, and to oscillate the baffle under the gravity of concrete and the initial velocity impact of concrete, exhaust bubbles, reduce pores, and improve compactness.

Benefits of technology

It can ensure construction quality without oscillation of additional equipment, improve concrete density, reduce permeability, enhance pipe corridor durability, and prevent steel bar corrosion caused by moisture and air.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an integrated concrete casting formwork system for an underground integrated pipe gallery, wherein a cavity is formed between a first baffle and a second baffle, the first baffle is connected to a first pressure plate via a crimping oscillation assembly, the second baffle is connected to a second pressure plate via a crimping oscillation assembly, the second pressure plate is connected to a second crimping rod assembly, the first pressure plate is connected to a first crimping rod assembly, and the first crimping rod assembly and the second crimping rod assembly are both connected to a drive shaft. The present invention forms a pipe gallery by casting concrete in the cavity formed between the first baffle and the second baffle, and solidifying the concrete. Since the first baffle and the second baffle are both arranged on the crimping oscillation assembly, during casting, the concrete is impacted by its own gravity and its initial velocity, causing the crimping oscillation assembly to oscillate, thereby solving the problem that the existing casting formwork system needs to use additional equipment to oscillate the cast concrete during the casting process to ensure construction quality, and the steps are cumbersome.
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Description

Technical Field

[0001] The present invention relates to the technical field of engineering structure design and manufacturing, and particularly to an integral concrete pouring formwork system for an underground utility tunnel. Background Art

[0002] An underground utility tunnel refers to an integrated corridor for urban underground pipelines, that is, a tunnel space is built underground in the city, integrating various engineering pipelines such as electricity, communication, gas, heating, water supply and drainage, etc., equipped with special inspection ports, hoisting ports and monitoring systems, and implementing unified planning, unified design, unified construction and management, which is an important infrastructure to ensure the operation of the city.

[0003] In the Chinese patent application No.CN202111253820.8, a formwork system is disclosed, especially a formwork system for concrete pouring of an underground utility tunnel, belonging to the technical field of building engineering structure design and manufacturing. A formwork system for concrete pouring of an underground utility tunnel with relatively low construction cost, which can ensure the construction quality and subsequent use requirements is provided. The formwork system includes a combined U-shaped formwork component and an adjustable universal support component, and the combined U-shaped formwork component is supported on the pouring base of the utility tunnel through the adjustable universal support component to form a U-shaped pouring cavity.

[0004] Although this patent solves the problems of relatively poor structural strength in the classification casting method and the risk of water seepage in the later stage, as well as the problems of large volume, large mass and high price in the overall construction method, during its pouring process, additional equipment is needed to oscillate the poured concrete to ensure the construction quality, and the steps are cumbersome. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an integral concrete pouring formwork system for an underground utility tunnel, which solves the problem that in the existing pouring formwork system, additional equipment is needed to oscillate the poured concrete to ensure the construction quality during the pouring process, and the steps are cumbersome.

[0006] To achieve the above purposes, the present invention is realized through the following technical solutions:

[0007] An integral concrete pouring formwork system for an underground utility tunnel includes a first baffle and a second baffle, a cavity is formed between the first baffle and the second baffle, the first baffle is connected to a first bearing plate through a press connection oscillation component, the second baffle is connected to a second bearing plate through a press connection oscillation component, the second bearing plate is connected to a second press connection rod component, the first bearing plate is connected to a first press connection rod component, and both the first press connection rod component and the second press connection rod component are connected to a driving shaft.

[0008] Preferably, the drive shaft is partially disposed in a drive shaft sleeve, and a main bevel gear is fixedly connected to the drive shaft;

[0009] The first crimping rod assembly and the second crimping rod assembly both include a limiting sleeve, which is communicated with the drive shaft sleeve. A slave bevel gear is provided in the limiting sleeve, which is engaged with the main bevel gear. The slave bevel gear is fixedly connected to the threaded shaft, and the threaded shaft is threadedly connected to the screw tube, and a connecting block is fixedly connected to the screw tube.

[0010] Preferably, a first limiting ring and a second limiting ring are provided in the limiting sleeve, and the first limiting ring and the second limiting ring are fixedly connected to the inner wall of the limiting sleeve, and the first limiting ring is sleeved on the outside of the threaded shaft, and the first limiting ring is rotatably connected to the threaded shaft, and the second limiting ring is sleeved on the outside of the screw tube, and the second limiting ring is rotatably connected to the screw tube.

[0011] Preferably, a plurality of the limiting sleeves are provided.

[0012] Preferably, one end of the drive shaft is located outside the drive shaft sleeve, and the end of the drive shaft located outside the drive shaft sleeve is fixedly connected to a drive handle.

[0013] Preferably, one end of the second pressing rod assembly away from the driving sleeve is fixedly connected to a receiving rod, and a second pressure plate is fixedly connected to the receiving rod.

[0014] Preferably, the crimping oscillation assembly includes a connecting shell, the connecting shell is fixedly connected to the first pressure-bearing plate and / or the second pressure-bearing plate, a sliding rod is inserted into the inner wall of the connecting shell, the sliding rod is slidably connected to the inner wall of the connecting shell, a second spring is provided between one end of the sliding rod close to the connecting shell and the connecting shell, two ends of the second spring are respectively connected to the sliding rod and the connecting shell, and the sliding rod passes through the limiting plate, and the limiting plate is fixedly connected to the connecting shell;

[0015] The end of the sliding rod away from the connecting shell is fixedly connected to the first sliding block, the first sliding block is slidably connected to the adjustment plate, the adjustment plate is slidably connected to the connecting shell, the sliding rod is outer-connected with a first spring, and the two ends of the first spring are respectively in contact with the limit plate and the first sliding block.

[0016] Preferably, the adjustment plate is slidably connected to a plug sleeve, a plug rod is plugged into the plug sleeve, a third spring is provided between the plug rod and the plug sleeve, and both ends of the third spring are respectively connected to the plug rod and the plug sleeve;

[0017] The end of the plug rod away from the plug sleeve is rotatably connected to a second slider, the second slider is slidably connected to a connecting plate, and the connecting plate is fixedly connected to the first baffle and / or the second baffle;

[0018] The inserting rod is fixedly connected with a first inclined plane block, and the first inclined plane block is slidably connected with a second inclined plane block fixed on the connecting shell.

[0019] Preferably, an adjusting rod is fixedly connected to the connecting plate, the adjusting rod is threadedly connected to the adjusting screw, the adjusting screw is rotatably connected to the middle block, two sets of balance plates are slidably connected to the middle block, the end of the balance plate away from the middle block is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to the third slider, the third slider is slidably connected to the adjusting plate, one end of a fourth spring is connected to the middle section of the connecting rod, and the other end of the fourth spring is connected to the adjusting plate.

[0020] Preferably, a collar is externally connected to the plug-in sleeve, and the collar is slidably connected to the plug-in sleeve. A fifth spring is provided between the collar and the two sets of balance plates.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The present invention forms a pipe gallery by pouring concrete in the cavity formed between the first baffle and the second baffle, and allowing it to solidify. Since the first baffle and the second baffle are both arranged on a crimping oscillation assembly, during pouring, the crimping oscillation assembly is impacted by the concrete's own gravity and its initial velocity, causing it to oscillate, thereby expelling bubbles in the concrete, reducing pores, making the concrete dense, and ensuring the quality of the pipe gallery. The crimping oscillation assembly reduces the pores in the concrete and the permeability of the concrete pipe gallery, thereby improving the durability of the pipe gallery. The ability to resist erosion by running water is improved, and moisture and air are prevented from rusting the steel bars in the concrete. The present invention solves the problem that during the pouring process of the existing casting formwork system, additional equipment needs to be used to oscillate the poured concrete to ensure construction quality, and the steps are cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a schematic top view of the main structure of the present invention;

[0025] Figure 3 It is a partial schematic diagram of the main structure of the present invention;

[0026] Figure 4 It is a schematic front view of the crimping oscillation assembly structure of the present invention.

[0027] In the figure: 1, bottom plate; 2, first baffle; 3, drive shaft; 4, first pressing rod assembly; 5, drive shaft sleeve; 6, second pressing rod assembly; 7, first pressure plate; 8, receiving rod; 9, second pressure plate; 10, pressing oscillation assembly; 11, second baffle; 12, drive handle; 13, main bevel gear; 14, slave bevel gear; 15, first limiting ring; 16, solenoid; 17, second limiting ring; 18, connecting block; 1001, connecting shell; 1002, slide rod; 1003, first spring; 1004, limiting plate; 1 005, second spring; 1006, adjustment plate; 1007, plug-in sleeve; 1008, first slider; 1009, plug rod; 1010, third spring; 1011, first inclined plane block; 1012, second inclined plane block; 1013, second slider; 1014, connecting plate; 1015, adjustment rod; 1016, intermediate block; 1017, adjustment screw; 1018, balance plate; 1019, connecting rod; 1020, third slider; 1021, fourth spring; 1022, collar; 1023, fifth spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] See also Figure 1-Figure 3 The present invention provides a technical solution: an integrated concrete pouring formwork system for an underground integrated pipeline corridor, comprising a first baffle 2 and a second baffle 11, a cavity being formed between the first baffle 2 and the second baffle 11, the first baffle 2 being connected to the first pressure plate 7 through a crimping oscillation assembly 10, the second baffle 11 being connected to the second pressure plate 9 through a crimping oscillation assembly 10, the second pressure plate 9 being connected to the second crimping rod assembly 6, the first pressure plate 7 being connected to the first crimping rod assembly 4, the first crimping rod assembly 4 and the second crimping rod assembly 6 being both connected to the drive shaft 3.

[0031] Preferably, the driving shaft 3 is partially disposed in the driving shaft sleeve 5, and the driving shaft 3 is fixedly connected to the main bevel gear 13;

[0032] The first crimping rod assembly 4 and the second crimping rod assembly 6 both include a limiting sleeve, which is communicated with the drive shaft sleeve 5. A slave bevel gear 14 is provided in the limiting sleeve, and the slave bevel gear 14 is engaged with the main bevel gear 13. The slave bevel gear 14 is fixedly connected to the threaded shaft, and the threaded shaft is threadedly connected to the screw tube 16, and a connecting block 18 is fixedly connected to the screw tube 16.

[0033] Preferably, a first limiting ring 15 and a second limiting ring 17 are provided in the limiting sleeve, and the first limiting ring 15 and the second limiting ring 17 are fixedly connected to the inner wall of the limiting sleeve, and the first limiting ring 15 is sleeved on the outside of the threaded shaft, and the first limiting ring 15 is rotatably connected to the threaded shaft, and the second limiting ring 17 is sleeved on the outside of the screw tube 16, and the second limiting ring 17 is rotatably connected to the screw tube 16.

[0034] Preferably, a plurality of the limiting sleeves are provided.

[0035] Preferably, one end of the drive shaft 3 is located outside the drive shaft sleeve 5 , and the end of the drive shaft 3 located outside the drive shaft sleeve 5 is fixedly connected to a drive handle 12 .

[0036] Preferably, one end of the second pressing rod assembly 6 away from the driving shaft sleeve 5 is fixedly connected to a receiving rod 8 , and a second pressure plate 9 is fixedly connected to the receiving rod 8 .

[0037] The working principle and beneficial effects of the above scheme:

[0038] The present invention forms a pipe gallery by pouring concrete in the cavity formed between the first baffle 2 and the second baffle 11 and allowing it to solidify. Since the first baffle 2 and the second baffle 11 are both arranged on the crimping oscillation assembly 10, during pouring, the crimping oscillation assembly 10 is impacted by the concrete's own gravity and its initial velocity, causing the concrete to oscillate, thereby expelling bubbles in the concrete, reducing pores, making the concrete dense, and ensuring the quality of the pipe gallery. The crimping oscillation assembly 10 reduces the pores in the concrete and reduces the permeability of the concrete pipe gallery, thereby improving the durability of the pipe gallery. The ability to resist erosion by running water is improved, and moisture and air are prevented from rusting the steel bars in the concrete. The present invention solves the problem that during the pouring process of the existing casting formwork system, additional equipment needs to be used to oscillate the poured concrete to ensure construction quality, and the steps are cumbersome.

[0039] Example 2

[0040] See also Figure 4 On the basis of Example 1, the crimping oscillation assembly 10 includes a connecting shell 1001, the connecting shell 1001 is fixedly connected to the first pressure-bearing plate 7 and / or the second pressure-bearing plate 9, the inner wall of the connecting shell 1001 is plugged with a sliding rod 1002, the sliding rod 1002 is slidably connected to the inner wall of the connecting shell 1001, and a second spring 1005 is provided between the end of the sliding rod 1002 close to the connecting shell 1001 and the connecting shell 1001, the two ends of the second spring 1005 are respectively connected to the sliding rod 1002 and the connecting shell 1001, and the sliding rod 1002 passes through the limiting plate 1004, and the limiting plate 1004 is fixedly connected to the connecting shell 1001;

[0041] The end of the sliding rod 1002 away from the connecting shell 1001 is fixedly connected to the first slider 1008, the first slider 1008 is slidably connected to the adjustment plate 1006, the adjustment plate 1006 is slidably connected to the connecting shell 1001, and the outer shell of the sliding rod 1002 is connected to the first spring 1003, and the two ends of the first spring 1003 are respectively abutted against the limit plate 1004 and the first slider 1008.

[0042] Preferably, a plug sleeve 1007 is slidably connected to the adjustment plate 1006, a plug rod 1009 is inserted into the plug sleeve 1007, a third spring 1010 is provided between the plug rod 1009 and the plug sleeve 1007, and two ends of the third spring 1010 are respectively connected to the plug rod 1009 and the plug sleeve 1007;

[0043] The end of the plug rod 1009 away from the plug sleeve 1007 is rotatably connected to the second slider 1013, and the second slider 1013 is slidably connected to the connecting plate 1014, and the connecting plate 1014 is fixedly connected to the first baffle 2 and / or the second baffle 11;

[0044] The inserting rod 1009 is fixedly connected to a first inclined plane block 1011 , and the first inclined plane block 1011 is slidably connected to a second inclined plane block 1012 fixed to the connecting shell 1001 .

[0045] Preferably, an adjusting rod 1015 is fixedly connected to the connecting plate 1014, and the adjusting rod 1015 is threadedly connected to the adjusting screw 1017, and the adjusting screw 1017 is rotatably connected to the intermediate block 1016. Two groups of balancing plates 1018 are slidably connected to the intermediate block 1016. The end of the balancing plate 1018 away from the intermediate block 1016 is rotatably connected to one end of a connecting rod 1019, and the other end of the connecting rod 1019 is rotatably connected to the third slider 1020. The third slider 1020 is slidably connected to the adjusting plate 1006, and one end of the fourth spring 1021 is connected to the middle position of the connecting rod 1019, and the other end of the fourth spring 1021 is connected to the adjusting plate 1006.

[0046] Preferably, a collar 1022 is externally connected to the plug-in sleeve 1007 , and the collar 1022 is slidably connected to the plug-in sleeve 1007 . A fifth spring 1023 is provided between the collar 1022 and the two sets of balance plates 1018 .

[0047] The working principle and beneficial effects of the above scheme:

[0048] During pouring, the first baffle 2 and the second baffle 11 are impacted by the concrete's own gravity and its initial velocity, the connecting plate 1014 approaches the connecting shell 1001, the third spring 1010, the second spring 1005, and the first spring 1003 shrink, and under the action of the first inclined plane block 1011 and the second inclined plane block 1012, the two groups of plug rods 1009 approach each other, driving the two groups of plug sleeves 1007 to approach, the fifth spring 1023 shrinks, and in the process of the connecting plate 1014 approaching the connecting shell 1001, the middle block 1016 approaches the adjustment plate 1006, the connecting rod 1019 deflects, and the fourth Spring 1021, when the amount of contraction of the above spring reaches its limit, the above contracted spring begins to relax, and the connecting plate 1014 moves away from the connecting shell 1001, that is, the first baffle 2 and the second baffle 11 connected to the connecting plate 1014 move accordingly, and then repeat several times until the pressure of the poured concrete on the first baffle 2 and the second baffle 11 and the pressure of the crimping oscillation component 10 on the first baffle 2 and the second baffle 11 reach equilibrium, and the oscillation stops. During this oscillation process, the bubbles in the concrete are discharged, reducing the porosity of the concrete, making the concrete more dense, and ensuring the quality of the tunnel. By crimping the oscillation component 10, the porosity of the concrete is reduced, the permeability of the concrete tunnel is reduced, thereby improving the durability of the tunnel. It improves the ability to resist water erosion and prevents moisture and air from corroding the steel bars in the concrete.

[0049] By rotating the adjusting screw 1017, the initial position of the connecting plate 1014 can be changed to make the position of the connecting plate 1014 more suitable;

[0050] The arrangement of the first inclined block 1011, the second inclined block 1012, the collar 1022 and the fifth spring 1023 makes the movement of the connecting plate 1014 relative to the connecting shell 1001 more balanced, which is beneficial to ensuring the stability of the movement of the connecting plate 1014, and can also make the oscillation of the first baffle 2 and the second baffle 11 more stable, which is beneficial to improving the quality of the pipe gallery.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," 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 inherent to such process, method, article, or apparatus.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated concrete pouring formwork system for an underground integrated pipe gallery, characterized by: The invention comprises a first baffle (2) and a second baffle (11), wherein a cavity is formed between the first baffle (2) and the second baffle (11), the first baffle (2) is connected to the first pressure-bearing plate (7) via a pressing oscillation assembly (10), the second baffle (11) is connected to the second pressure-bearing plate (9) via a pressing oscillation assembly (10), the second pressure-bearing plate (9) is connected to the second pressing rod assembly (6), the first pressure-bearing plate (7) is connected to the first pressing rod assembly (4), and the first pressing rod assembly (4) and the second pressing rod assembly (6) are both connected to the drive shaft (3); The crimping oscillation assembly (10) comprises a connecting shell (1001), the connecting shell (1001) is fixedly connected to the first pressure-bearing plate (7) and / or the second pressure-bearing plate (9), a sliding rod (1002) is inserted into the inner wall of the connecting shell (1001), the sliding rod (1002) is slidably connected to the inner wall of the connecting shell (1001), a second spring (1005) is provided between one end of the sliding rod (1002) close to the connecting shell (1001) and the connecting shell (1001), two ends of the second spring (1005) are respectively connected to the sliding rod (1002) and the connecting shell (1001), and the sliding rod (1002) passes through the limiting plate (1004), and the limiting plate (1004) is fixedly connected to the connecting shell (1001); One end of the slide rod (1002) away from the connection shell (1001) is fixedly connected to a first slide block (1008), the first slide block (1008) is slidably connected to the adjustment plate (1006), the adjustment plate (1006) is slidably connected to the connection shell (1001), a first spring (1003) is externally connected to the slide rod (1002), and two ends of the first spring (1003) are respectively in contact with the limit plate (1004) and the first slide block (1008); A plug-in sleeve (1007) is slidably connected to the adjustment plate (1006), a plug-in rod (1009) is plugged into the plug-in sleeve (1007), a third spring (1010) is provided between the plug-in rod (1009) and the plug-in sleeve (1007), and two ends of the third spring (1010) are respectively connected to the plug-in rod (1009) and the plug-in sleeve (1007); One end of the plug rod (1009) away from the plug sleeve (1007) is rotatably connected to a second slider (1013), the second slider (1013) is slidably connected to a connecting plate (1014), and the connecting plate (1014) is fixedly connected to the first baffle (2) and / or the second baffle (11); A first inclined plane block (1011) is fixedly connected to the insertion rod (1009), and the first inclined plane block (1011) is slidably connected to a second inclined plane block (1012) fixed to the connection shell (1001); An adjusting rod (1015) is fixedly connected to the connecting plate (1014), the adjusting rod (1015) is threadedly connected to the adjusting screw (1017), the adjusting screw (1017) is rotatably connected to the intermediate block (1016), two sets of balancing plates (1018) are slidably connected to the intermediate block (1016), one end of the balancing plate (1018) away from the intermediate block (1016) is rotatably connected to one end of a connecting rod (1019), the other end of the connecting rod (1019) is rotatably connected to a third slider (1020), the third slider (1020) is slidably connected to the adjusting plate (1006), one end of a fourth spring (1021) is connected to the middle section of the connecting rod (1019), and the other end of the fourth spring (1021) is connected to the adjusting plate (1006); The plug-in sleeve (1007) is externally connected with a collar (1022), the collar (1022) is slidably connected to the plug-in sleeve (1007), and a fifth spring (1023) is provided between the collar (1022) and the two sets of balance plates (1018).

2. The integrated concrete pouring formwork system for an underground integrated pipe gallery according to claim 1, characterized in that: The drive shaft (3) is partially disposed in the drive shaft sleeve (5), and a main bevel gear (13) is fixedly connected to the drive shaft (3); The first crimping rod assembly (4) and the second crimping rod assembly (6) both include a limiting sleeve, the limiting sleeve is communicated with the drive shaft sleeve (5), a slave bevel gear (14) is provided in the limiting sleeve, the slave bevel gear (14) is meshed with the main bevel gear (13), the slave bevel gear (14) is fixedly connected to the threaded shaft, the threaded shaft is threadedly connected to the screw tube (16), and a connecting block (18) is fixedly connected to the screw tube (16).

3. The integrated concrete pouring formwork system for an underground integrated pipe gallery according to claim 2, characterized in that: A first limiting ring (15) and a second limiting ring (17) are provided in the limiting sleeve. The first limiting ring (15) and the second limiting ring (17) are fixedly connected to the inner wall of the limiting sleeve. The first limiting ring (15) is sleeved on the outside of the threaded shaft. The first limiting ring (15) is rotatably connected to the threaded shaft. The second limiting ring (17) is sleeved on the outside of the screw tube (16). The second limiting ring (17) is rotatably connected to the screw tube (16).

4. The integrated concrete pouring formwork system for an underground integrated pipe gallery according to claim 2, characterized in that: There are several limiting sleeves.

5. The integrated concrete pouring formwork system for an underground integrated pipe gallery according to claim 2, characterized in that: One end of the drive shaft (3) is located outside the drive shaft sleeve (5), and the end of the drive shaft (3) located outside the drive shaft sleeve (5) is fixedly connected to a drive handle (12).

6. The integrated concrete pouring formwork system for an underground integrated pipe gallery according to claim 1, characterized in that: One end of the second pressing rod assembly (6) away from the driving shaft sleeve (5) is fixedly connected to a receiving rod (8), and a second pressure plate (9) is fixedly connected to the receiving rod (8).

Citation Information

Patent Citations

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