Ground surface point protection device suitable for soft soil area

Abstract

The utility model relates to the technical field of ground surface differential settlement monitoring, in particular to a ground surface point protection device suitable for a soft soil area, which comprises a base, a skirt wing plate is integrally formed at the bottom end of the base, an extension pipe is screwed at the top end of the base, and a sealing cover is inserted at the top end of the extension pipe; the protection device has the beneficial effects that through the design of the skirt wing plate at the bottom end of the base, the contact area with the soft soil surface is effectively increased, so that the stability of the protection device is improved, and the sinking risk caused by insufficient soil bearing capacity is reduced; the design of the screw joint type extension pipe is adopted, and when the protection device sinks seriously due to the poor geological condition, the height of the protection device can be conveniently increased by additionally arranging the extension pipe so as to adapt to different geological conditions, and it is ensured that the protection device can play a role stably all the time.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface uneven settlement monitoring technical field, specifically to a kind of surface point protection device suitable for soft soil area. BACKGROUND

[0002] Surface settlement observation point is a kind of buried in surface for observing surface uneven settlement monitoring point. At present, city subway shield construction, super large deep foundation pit excavation, large building (structure) construction process needs to carry out monitoring work to surrounding environment surface. In the existing new project engineering, surrounding environment ground is often in situ soil or miscellaneous fill, environment is relatively relatively poor, need to protect surface point in surface settlement monitoring process, currently most used is to set surface point protection cover on the upper portion of surface point. In special soft soil conditions, surface point protection cover often subsides with time elapses, cannot better play the protection effect, while there is the phenomenon that cover plate is not easy to open after subsidence, to make up for the deficiency of existing protection cover, thus need a kind of surface point protection device suitable for soft soil area. SUMMARY

[0003] The utility model aims at providing a kind of surface point protection device suitable for soft soil area, to solve the problems presented in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of surface point protection device suitable for soft soil area, including base, the bottom end of the base is integrally formed with skirt wing plate, the top end of base is screw connected with extension pipe, the top end of extension pipe is inserted with cover.

[0005] Preferably, the base is a circular tube structure, the skirt wing plate is a circular ring plate structure, the inner diameter of the skirt wing plate is equal to the inner diameter of the base, and the outer diameter of the skirt wing plate is greater than the outer diameter of the base.

[0006] Preferably, the top surface of the base is provided with a screw groove one, and the bottom end of the extension pipe is fixed with a screw pipe. The screw pipe and the screw groove one are connected.

[0007] Preferably, the top surface of the extension pipe is provided with a screw groove two, and the screw groove two matches the screw pipe.

[0008] Preferably, the cover is a "T" shaped cylinder, the bottom surface of the cover is provided with a clamping groove, the clamping groove is an annular groove with a circular cross-section, a lead-in ring is inserted into the clamping groove, a rubber ring is fixed on the top end of the lead-in ring, the rubber ring is a circular ring structure with a circular cross-section, and the rubber ring is elastically deformed between the clamping groove and the lead-in ring.

[0009] Preferably, the top surface of the cover is provided with a through hole, the through hole is provided with two, the inner wall of the base and the extension pipe is fixed with a limiting rod, the limiting rod is an L-shaped round rod, the top end of the limiting rod is provided with external threads, the cover is inserted into the top of the extension pipe, the top end of the limiting rod penetrates through the through hole, and the top end of the limiting rod is screwed with a nut.

[0010] Preferably, the top surface of the cover is provided with a through hole, the through hole is provided with two, the inner wall of the base and the extension pipe is fixed with a limiting rod, the limiting rod is an L-shaped round rod, the top end of the limiting rod is provided with external threads, the cover is inserted into the top of the extension pipe, the top end of the limiting rod penetrates through the through hole, and the top end of the limiting rod is screwed with a nut.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The ground point protection device suitable for soft soil areas has the skirt wing plate design at the bottom end of the base, effectively increases the contact area with the soft soil surface, improves the stability of the protection device, and reduces the subsidence risk caused by insufficient soil bearing capacity; the screw type extension pipe design can conveniently lengthen the height of the protection device by increasing the extension pipe when the geological condition is poor and the protection device subsides seriously, so that different geological conditions can be adapted to, and the protection device can always stably play a role; the cover bottom is provided with the clamping groove and the lead-in ring, and is used in cooperation with the rubber ring, can effectively prevent the cover from bumping on the top of the extension pipe, ensures the stability and sealing performance of the cover. In addition, the cover is also provided with the limiting rod and the nut, further reinforces the connection between the cover and the extension pipe, and improves the stability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a structural top view of the utility model;

[0015] Figure 3 It is Figure 2 It is a structural sectional view of A-A in the middle;

[0016] Figure 4 It is Figure 3 It is an enlarged schematic view of the structure of A in the middle;

[0017] Figure 5 It is a structural schematic view of the base of the utility model;

[0018] Figure 6 It is a structural schematic view of the extension pipe of the utility model.

[0019] In the drawing: base 1, skirt wing plate 2, screw groove one 3, extension pipe 4, screw pipe 5, screw groove two 6, cover 7, clamping groove 8, lead-in ring 9, rubber ring 10, through hole 11, limiting rod 12, nut 13, pick-up groove 14, pull rod 15. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model to be clear, complete description, and the advantage is more clear and obvious, the following will combine the drawings to further detail the utility model embodiment. It should be understood that the specific embodiments described herein are part of the embodiments of the utility model, rather than all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without doing creative work under the premise, belong to the scope of the utility model protection.

[0021] Please refer to Figures 1 to 6 The utility model provides a technical scheme: a kind of ground point protection device suitable for soft soil area, including base 1, for the ground point in soft soil area is kept out, the bottom end of base 1 is integrally formed with skirt wing plate 2, for protecting device to produce subsidence in soft soil area;The base 1 is round tube structure, skirt wing plate 2 is circular plate structure, the inner diameter of skirt wing plate 2 is equal to the inner diameter of base 1, the outer diameter of skirt wing plate 2 is greater than the outer diameter of base 1, the top of base 1 is screwed with extension pipe 4, the top surface of base 1 is provided with screw groove one 3, the bottom end of extension pipe 4 is fixed with screw pipe 5, screw pipe 5 and screw groove one 3 are connected;Extension pipe 4 top surface is provided with screw groove two 6, screw groove two 6 and screw pipe 5 match;When geological condition is too bad and protection device subsides seriously, extension pipe 4 can be used to lengthen and raise protection device, i.e. extension pipe 4 is screwed in screw groove one 3 by screw pipe 5, when it needs to continue to lengthen, another extension pipe 4 is screwed in screw groove two 6 on the top of lower extension pipe 4 by screw pipe 5.

[0022] The top end of the extension pipe 4 is inserted with a cover 7, which is a "T" shaped cylinder. The bottom surface of the cover 7 is provided with a clamping groove 8, which is an annular groove with a circular cross-section. The inside of the clamping groove 8 is inserted with a lead-in ring 9. The top end of the lead-in ring 9 is sleeved with a rubber ring 10, which is a circular ring structure with a circular cross-section. The rubber ring 10 is clamped between the clamping groove 8 and the lead-in ring 9 to produce elastic deformation. The top surface of the cover 7 is provided with a through hole 11. The inside wall of the base 1 and the extension pipe 4 is fixed with a limiting rod 12, which is an "L" shaped round rod. The top end of the limiting rod 12 is provided with external threads. After the cover 7 is inserted into the top end of the extension pipe 4, the top end of the limiting rod 12 penetrates through the through hole 11. The top end of the limiting rod 12 is screwed with a nut 13. The top surface of the cover 7 is provided with a scraping groove 14, and the scraping groove 14 is fixed with a pull rod 15. The cover 7 is inserted into the top end of the extension pipe 4 and screwed into the second screwing groove 6. At this time, the lead-in ring 9 and the rubber ring 10 are clamped in the clamping groove 8, so as to avoid the cover 7 from being jolted on the top end of the extension pipe 4. The cover 7 blocks the pipe opening of the extension pipe 4. At this time, the limiting rod 12 is inserted into the through hole 11. If it is necessary to reinforce the connection between the cover 7 and the extension pipe 4, the nut 13 can be sleeved and screwed on the top end of the limiting rod 12. The pull rod 15 is arranged to facilitate the separation of the cover 7 from the top end of the extension pipe 4.

[0023] The use process is as follows:

[0024] Select the ground point of the soft soil area to be protected. Place the base 1 (with the skirt wing plate 2) on the selected ground point. Ensure that the skirt wing plate 2 is effectively unfolded to increase the contact area with the soft ground and prevent subsidence. If the geological conditions are poor and it is expected that a large subsidence may occur, start to connect the extension pipe 4. Align the screwing pipe 5 at the bottom end of the extension pipe 4 with the screwing groove one 3 on the top surface of the base 1 and screw and fix it. If further lengthening is needed, repeat the step to screw the new extension pipe 4 into the screwing groove two 6 on the top of the lower extension pipe 4 through the screwing pipe 5. Take out the cover 7 and ensure that the structures such as the clamping groove 8, the through hole 11 and the scraping groove 14 on the bottom surface of the cover 7 are intact. Check whether the lead-in ring 9 and the rubber ring 10 have been correctly installed in the clamping groove 8. The rubber ring 10 should be clamped between the clamping groove 8 and the lead-in ring 9 to produce elastic deformation. Align the bottom of the cover 7 with the top screwing groove two 6 of the extension pipe 4 and insert it smoothly. Ensure that the lead-in ring 9 and the rubber ring 10 are smoothly clamped in the clamping groove 8 to increase the stability of the cover 7 and prevent jolting. After the insertion is completed, check whether the limiting rod 12 has been aligned with the through hole 11. If the limiting rod 12 is not aligned, slightly adjust the position of the cover 7 until it is aligned. Screw the nut 13 on the top of the limiting rod 12 to further reinforce the connection between the cover 7 and the extension pipe 4. If it is necessary to disassemble the cover 7 for internal inspection or maintenance, hold the pull rod 15 and pull it upward gently. After ensuring that the rubber ring 10 and the lead-in ring 9 are smoothly taken out of the clamping groove 8, completely take out the cover 7.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface point protection device suitable for soft soil areas, comprising a base (1), characterized in that: The bottom end of the base (1) is integrally formed with a skirt wing plate (2), and the top end of the base (1) is screwed with an extension tube (4), and the top end of the extension tube (4) is inserted with a cap (7).

2. A surface point protection device suitable for soft soil areas according to claim 1, characterized in that: The base (1) has a cylindrical tube structure, and the skirt wing plate (2) has a circular ring plate structure. The inner diameter of the skirt wing plate (2) is equal to the inner diameter of the base (1), and the outer diameter of the skirt wing plate (2) is greater than the outer diameter of the base (1).

3. A surface point protection device suitable for soft soil areas according to claim 1, characterized in that: The top surface of the base (1) is provided with a screw groove (3), and the bottom end of the extension tube (4) is fixed with a screw pipe (5). The screw pipe (5) and the screw groove (3) are connected together.

4. A surface point protection device suitable for soft soil areas according to claim 3, characterized in that: The top surface of the extension tube (4) is provided with a second threaded groove (6), which matches the threaded tube (5).

5. A surface point protection device suitable for soft soil areas according to claim 1, characterized in that: The cover (7) is a "T" shaped cylinder. The bottom surface of the cover (7) is provided with a slot (8). The slot (8) is an annular groove with a rounded opening. An inlet ring (9) is inserted into the slot (8). A rubber retainer (10) is fitted and fixed at the top of the inlet ring (9). The rubber retainer (10) is a circular ring structure with a rounded cross-section. The rubber retainer (10) is clamped between the slot (8) and the inlet ring (9) and undergoes elastic deformation.

6. A surface point protection device suitable for soft soil areas according to claim 1, characterized in that: The top surface of the cover (7) is provided with a through hole (11), and there are two through holes (11). The inner walls of the base (1) and the extension tube (4) are fixed with limit rods (12). The limit rods (12) are "L" shaped round rods. The top end of the limit rods (12) is provided with external threads. After the cover (7) is inserted into the top of the extension tube (4), the top end of the limit rods (12) passes through the through hole (11). The top end of the limit rods (12) is screwed with a nut (13).

7. A surface point protection device suitable for soft soil areas according to claim 1, characterized in that: The top surface of the cover (7) is provided with a scooping groove (14), and a pull rod (15) is fixed on the surface of the scooping groove (14).

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