CN203049615U

CN203049615U - Well bore protection device

Info

Publication number: CN203049615U
Application number: CN 201220659640
Authority: CN
Inventors: 徐毅夫; 周小武; 吴非; 黄志龙
Original assignee: CCFEB Civil Engineering Co Ltd
Current assignee: CCFEB Civil Engineering Co Ltd
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2013-07-10
Anticipated expiration: 2022-12-04

Abstract

The utility model provides a well bore protection device which is fixed with the inner wall of the well bore for temporarily sealing the wellhead of the well bore. The well bore protection device comprises the following components: a sealing board which seals the wellhead; and at least two telescopic rods which support the sealing board, wherein the two telescopic rods can respectively extend into the inner wall of the well bore. According to the well bore protection device of the utility model, when the well bore protection device is fixed with the inner wall of the well bore, the sealing board can just seal the wellhead, thereby preventing drop of foreign matter in construction into the well bore, reducing required cleaning expense at later period and reducing construction cost. Simultaneously, the well bore protection device settles a technical problem caused by a fact that a steel pipe frame or warning board is higher than ground in the prior art. Additionally, because the telescopic rods can telescope, the telescopic rods can extend to the inner wall of the well bore for supporting the sealing board when supporting of the sealing board is required. After supporting of the telescopic rod is finished, the telescopic rods can be shortened for facilitating taking of the telescopic rod out of the well bore, thereby realizing an instrumentalization purpose of the sealing board and the telescopic rods.

Description

The pit shaft protector

Technical field

The utility model relates to building servicing unit field, especially, relates to a kind of pit shaft protector.

Background technology

In the municipal engineering construction process, regular meeting arranges many sewage well, rainwater well, power communication well, combustion gas inspection well and received well etc. such as well, push pipe or traction tube, these wells can stay many well heads in work progress, if do not protected, pedestrian and child might slip and fall in the well, cause casualty accident; Simultaneously follow-uply also will carry out a large amount of earthworks, foreign material such as earth are easy to fall in the well, and therefore, the interior foreign material that often need open a hole cause the waste of resource.Existing well head protection method adopts steel pipe frame or warning panel to set up at the well periphery usually, but steel pipe frame or warning panel be above the ground level, and not only influences follow-up mechanical work and construction, also easily causes the damage of machinery simultaneously; Simultaneously, because of the well head opened upper end, a large amount of foreign material will fall in the well during construction, and the later stage needs a large amount of clear well expenses.

The utility model content

The utility model aims to provide and a kind ofly reduces construction cost, do not influence follow-up mechanical work, and realized the pit shaft protector of tool purpose, set up mode at the well periphery to solve existing employing steel pipe frame or warning panel, existence need open a hole interior foreign material, cause the follow-up mechanical work of the wasting of resources, influence and the technical problem of construction, damage Work machine etc.

For achieving the above object, the utility model provides a kind of pit shaft protector, fixes with the inwall of pit shaft, is used for the well head of temporary sealing pit shaft, comprises the sealing plate that seals well head; And at least two expansion links that support sealing plate, two expansion links all can prolong the inwall that gos deep into pit shaft.

Further, expansion link comprises that first pole, adjustable ground are sheathed on second pole on first pole and fix first pole and the screw element of second pole; Have tapped through hole on the outer wall of second pole, screw element passes behind the tapped through hole outer wall butt with first pole.

Further, the end of second pole is installed with sleeve, offers at least one aperture on the Zhou Yuan of sleeve, also is installed with at least one nut that matches with screw element on the Zhou Yuan of sleeve, the interior circle of nut is communicated with one by one with aperture, the interior round-formed tapped through hole of aperture and nut.

Further, first pole and second pole are reinforcing bar.

Further, the radical of expansion link is three.

Further, sealing plate is veneer.

The utlity model has following beneficial effect:

According to a kind of pit shaft protector of the present utility model, when the inwall of pit shaft protector and pit shaft fixedly the time, sealing plate just in time can seal up well head, thereby the foreign material can prevent from constructing the time fall in the pit shaft, reduce required cleaning up cost of later stage, reduced construction cost; Simultaneously, when making sealing plate be positioned on the expansion link, the upper surface of sealing plate flushes with ground or is lower than ground, can solve in the prior art technical problem that invar pipe support or warning panel are above the ground level and occur; In addition, owing to expansion link can stretch, so when needs support sealing plate, expansion link can prolong the inwall that gos deep into pit shaft, in order to support sealing plate, after the support task of expansion link is finished, expansion link can shorten, and be convenient to take out in pit shaft, thereby sealing plate and expansion bracket has been realized the tool purpose.

Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the structural representation according to pit shaft protector of the present utility model;

Fig. 2 is the schematic diagram that is fixed together according to pit shaft protector of the present utility model and pit shaft; And

Fig. 3 is that A-A among Fig. 2 is to the sectional structure schematic diagram.

Marginal data

1, sealing plate; 2, expansion link; 21, first pole; 22, second pole; 221, sleeve; 222, aperture; 223, nut; 23, screw element; 10, tapped through hole.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in figures 1 and 3, a kind of pit shaft protector of the present utility model is fixed with the inwall of pit shaft, is used for the well head of temporary sealing pit shaft, comprises the sealing plate 1 that seals well head; And 2, two expansion links 2 of at least two expansion links that support sealing plate 1 all can prolong the inwall that gos deep into pit shaft.According to a kind of pit shaft protector of the present utility model, comprise the sealing plate 1 of salable well head and the expansion link 2 that supports sealing plate 1, during construction, the inwall of this pit shaft protector and pit shaft is fixed, and at this moment, sealing plate 1 just in time can seal up well head, thereby the foreign material in the time of can preventing from constructing fall in the pit shaft, compared to existing technology, reduce required cleaning up cost of later stage, reduced construction cost; Simultaneously, when adopting expansion link 2 to support sealing plate 1, one end of expansion link 2 inserts the inwall of pit shaft, the other end is unsettled for supporting sealing plate 1, the two ends that can also be expansion link 2 all prolong the inwall that gos deep into pit shaft, the part of not going deep into pit shaft is used for supporting sealing plate 1, no matter expansion link 2 in which kind of mode links to each other with the inwall of pit shaft, when making sealing plate 1 be positioned on the expansion link 2, the upper surface of sealing plate 1 flushes with ground or is lower than ground, can solve in the prior art technical problem that invar pipe support or warning panel are above the ground level and occur; In addition, because expansion link 2 can stretch, so when needs supported sealing plate 1, expansion link 2 can prolong the inwall that gos deep into pit shaft, in order to support sealing plate 1, after the support task of expansion link 2 is finished, expansion link 2 can shorten, and is convenient to take out in pit shaft, so pit shaft protector of the present utility model, compared to existing technology, realized tool.

Particularly, expansion link 2 comprises first pole 21, adjustable ground is sheathed on second pole 22 on first pole 21, and the screw element 23 of fixing first pole 21 and second pole 22, preferably, screw element 23 is screw, wherein, has tapped through hole 10 on the outer wall of second pole 22, when fixing first pole 21 and second pole 22, second pole 22 is sheathed on outside first pole 21, after making screw pass tapped through hole 10 then, screw screw and tapped through hole 10, the outer wall that makes the end of screw prop up first pole 21, thus can fix first pole 21 and second pole 22.When need regulating the length of expansion link 2, only need loosening screw, and then regulate first pole 21 and both relative positions of second pole 22, tighten screw at last again and get final product, easy to adjust, flexible.

Preferably, for make screw firm fix first pole 21 and second pole 22, screw should fully screw with tapped through hole 10, at this moment, tapped through hole 10 should have certain degree of depth, so second pole 22 whole or offer the position of tapped through hole 10, should have certain thickness, waste material, and increase the weight of expansion link 2, in order to solve this technical problem, at first at the end fixed muffle 221 of second pole 22, offer an aperture 222 at the Zhou Yuan of sleeve 221 then, then on the Zhou Yuan of sleeve 221, also fix a nut 223, the interior circle of nut 223 is communicated with aperture 222, both are common to form as above-mentioned tapped through hole 10, fix first pole 21 and second pole 22 for more stable, the number of the aperture of offering on the sleeve 221 222 can be for a plurality of, when the number of aperture 222 when being a plurality of, correspondingly, the number of nut 223 also is a plurality of, and a plurality of apertures 222 are communicated with the interior circle of a plurality of nuts 223 one by one, thereby form a plurality of tapped through holes 10, processing, simple to operate, economical with materials, and can alleviate the overall weight of expansion link 2.

Preferably, as shown in Figures 2 and 3, be more firm support sealing plate 1, prevent that sealing plate 1 from dropping in the pit shaft, causes security incident, so in the present embodiment, the radical of expansion link 2 is 3,3 expansion links 2 are arranged in the pit shaft uniformly, and the inwall of pit shaft is all inserted at the two ends of every expansion link 2, and first pole 21 in the expansion link 2 and second pole 22 both be reinforcing bar.

Preferably, in the present embodiment, sealing plate 1 is veneer, and veneer is in light weight, when well sealing well head, can also alleviate the weight that is applied on the expansion link 2, avoids the generation of security incident.

During construction, again in conjunction with Fig. 2 and shown in Figure 3, adopt pit shaft protector of the present utility model, the step of the well head of temporary sealing pit shaft is: at first when pit shaft is built by laying bricks or stones to the ground certain distance, inwall at pit shaft is reserved the aperture that even number has certain depth, and this even number aperture in twos with the center symmetric arrangement of pit shaft, perhaps as shown in this embodiment, when pit shaft is built by laying bricks or stones to the ground certain distance, pre-buried 6 sections plastic sleeves on the inwall of pit shaft, and these 6 sections plastic sleeves in twos with the center symmetric arrangement of pit shaft, loosening screw inserts in the plastic sleeve 3 expansion links 2, and then tightens screw then, 3 expansion links 2 can form supporting network at well head, sealing plate 1 is positioned on the expansion link 2 at last, the sealing well head is when the well head of pit shaft need be installed formal well lid again, take out sealing plate 1, loose nut takes out expansion link 2, and the sealing service sleeve, sealing plate 1 and expansion link 2 still can be diverted to the protection of other well head, implementation toolization.

As can be seen from the above description, the utility model the above embodiments have realized following technique effect:

The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a pit shaft protector is fixed with the inwall of pit shaft, is used for the well head of the described pit shaft of temporary sealing, it is characterized in that,

Comprise the sealing plate (1) that seals described well head; And

Support at least two expansion links (2) of described sealing plate (1), two described expansion links (2) all can prolong the inwall that gos deep into described pit shaft.

2. pit shaft protector according to claim 1 is characterized in that,

Described expansion link (2) comprises the screw element (23) that first pole (21), adjustable ground are sheathed on second pole (22) on described first pole (21) and fix described first pole (21) and described second pole (22);

Have tapped through hole (10) on the outer wall of described second pole (22), described screw element (23) passes the outer wall butt of described tapped through hole (10) back and described first pole (21).

3. pit shaft protector according to claim 2, it is characterized in that, the end of described second pole (22) is installed with sleeve (221), offer at least one aperture (222) on the Zhou Yuan of described sleeve (221), also be installed with at least one nut (223) that matches with described screw element (23) on the Zhou Yuan of described sleeve (221), the interior circle of described nut (223) is communicated with one by one with described aperture (222), the interior round-formed described tapped through hole (10) of described aperture (222) and described nut (223).

4. pit shaft protector according to claim 3 is characterized in that, described first pole (21) and described second pole (22) are reinforcing bar.

5. pit shaft protector according to claim 2 is characterized in that, the radical of described expansion link (2) is three.

6. pit shaft protector according to claim 1 is characterized in that, described sealing plate (1) is veneer.