CN219773713U - Engineering horizontal tunnel portal protective cover - Google Patents

Abstract

The utility model relates to an engineering horizontal tunnel portal protecting cover, and belongs to the field of constructional engineering. This structure includes lid (1), screw rod (3), toper enlarged head (5), dead lever (8) and expansion piece (6), lid (1) and with lid (1) threaded connection are passed in screw rod (3), and the penetrating end of screw rod (3) is connected with the tip of toper enlarged head (5), and dead lever (8) are radial interval setting in the lower extreme of lid (1), and with lid (1) sliding connection, dead lever (8) inner and expansion piece (6) external wall connection, expansion piece (6) set up outside toper enlarged head (5), twist screw rod (3) can make toper enlarged head (5) promote expansion piece (6) and remove. This structure simple to operate, fixed dismantlement are convenient, can repetitious usage, reduce the protection cost. The problem of current old and useless board covers entrance to a cave intensity poor, and easily remove, the protection effect is poor is solved.

Description

Engineering horizontal tunnel portal protective cover

Technical Field

The utility model relates to an engineering horizontal tunnel portal protecting cover, and belongs to the field of constructional engineering.

Background

At present, in the field of building engineering, partial horizontal holes need to be reserved in the construction process, such as paying-off holes, flue reserved holes, pipeline reserved holes and the like in building engineering projects, inspection wellheads in municipal engineering and the like.

In the initial stage of setting the hole, the hole needs to be temporarily protected because the formal pipelines, the well covers and the like are not installed yet. The construction worker or the object is prevented from falling carelessly, so that a safety accident occurs. At present, the construction site is more covered with the waste templates, so that the construction site is not attractive, is easy to move, and has poor strength due to the waste templates, so that a better protection effect cannot be achieved.

Disclosure of Invention

The utility model aims to solve the technical problems that the existing waste plate covering hole is poor in strength, easy to move and poor in protection effect.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an engineering level entrance to a cave protective cover, includes lid, screw rod, toper enlarged footing, dead lever and expansion piece, the screw rod passes the lid and with lid threaded connection, the end of penetrating of screw rod is connected with the tip that toper enlarged footing, and the dead lever is radial interval setting in the lower extreme of lid, and with lid sliding connection, the dead lever inner with expand piece outer wall connection, the expansion piece sets up outside the toper enlarged footing, twists the screw rod and can make toper enlarged footing promote the expansion piece and remove.

The conical expansion head in the structure is of a conical structure, and the expansion piece is of an arc surface structure with the upper end inclined towards the middle of the cover body.

Wherein, in the above-mentioned structure the dead lever is kept away from the tip of expansion piece and is provided with the rubber pad.

The structure further comprises fixing pieces, wherein the fixing pieces are arranged at the lower end of the cover body at intervals, and the fixing rods penetrate through the fixing pieces, so that the fixing rods are in sliding connection with the cover body.

Further, in the above structure, the fixing members are arranged along the length direction of the fixing rods, and each fixing rod is at least arranged on two fixing members in a penetrating manner.

Wherein, in above-mentioned structure the lid middle part is provided with the counter bore, and the counter bore lower part is the screw hole of adaptation, screw rod and lid threaded connection.

Further, in the above structure, the upper end of the screw is provided with an inner hexagonal hole.

Wherein, in the above-mentioned structure, the dead lever is telescopic link structure.

The beneficial effects of the utility model are as follows: this structure simple to operate, fixed dismantlement are convenient, can repetitious usage, reduce the protection cost, improve the construction enterprise image. This structure is better carries out interim protection to the horizontal entrance to a cave, has promoted the protection effect. The screw on the cover body can be screwed to drive the conical enlarged head to lift, so that the fixing rod is pushed to move, and the end of the fixing rod is attached to the inner wall of the horizontal hole to achieve the purpose of fixing.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model.

Fig. 2 is a bottom view of a structure of the present utility model.

Fig. 3 is a top view of fig. 2 in accordance with the present utility model.

Fig. 4 is a bottom view of another embodiment of the present utility model.

Fig. 5 is a top view of fig. 4 in accordance with the present utility model.

Marked in the figure as: 1. a cover body; 2. countersink; 3. a screw; 5. a conical enlarged head; 6. an expansion sheet; 7. a fixing member; 8. a fixed rod; 9. a rubber pad; 10. and a horizontal hole.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, the engineering horizontal tunnel portal protection cover comprises a cover body 1, a screw rod 3, a conical expansion head 5, a fixing rod 8 and an expansion sheet 6, wherein the screw rod 3 penetrates through the cover body 1 and is in threaded connection with the cover body 1, the penetrating end of the screw rod 3 is connected with the small end of the conical expansion head 5, the fixing rod 8 is radially arranged at the lower end of the cover body 1 at intervals and is in sliding connection with the cover body 1, the inner end of the fixing rod 8 is connected with the outer wall of the expansion sheet 6, the expansion sheet 6 is arranged outside the conical expansion head 5, and the conical expansion head 5 can be pushed to move by screwing the screw rod 3. As can be appreciated by those skilled in the art, the cover 1 of the structure is directly buckled on the horizontal hole 10, the fixing rods 8 are arranged in the horizontal hole 10, as the screw 3 passes through the cover 1 and is in threaded connection with the cover 1, the penetrating end of the screw 3 is connected with the small end of the conical expansion head 5, the screw 3 is actually screwed to realize the lifting of the conical expansion head 5, the fixing rods 8 are radially arranged at the lower end of the cover 1 at intervals, the number of the fixing rods 8 is more than three and are arranged at intervals, the fixing rods 8 are in sliding connection with the cover 1, the inner ends of the fixing rods 8 are connected with the outer walls of the expansion pieces 6, the expansion pieces 6 are arranged outside the conical expansion head 5, the conical expansion head 5 can be driven to lift by actually screwing the screw 3 on the cover 1, the expansion pieces 6 are pushed to realize the axial movement of the fixing rods 8, the end parts of the fixing rods are attached to the inner walls of the horizontal hole 10, and the structure is fixed in the horizontal hole 10. It may be further preferred that the fixing rod 8 is only movable in its axial direction and not rotatable, thereby ensuring that the contact position of the conical expansion head 5 with the expansion piece 6 is unchanged.

Preferably, in the above structure, the conical expansion head 5 is in a conical structure, and the expansion piece 6 is in a cambered surface structure with the upper end inclined towards the middle part of the cover body 1. It will be appreciated by those skilled in the art that, in the present structure, the tapered expansion head 5 is preferably a tapered structure, so that in order to ensure that the tapered expansion head 5 is lifted and lowered to push the expansion piece 6 to move, the expansion piece 6 is preferably a cambered surface structure with the upper end inclined towards the middle of the cover body 1, so that the expansion piece 6 is in good contact with the tapered expansion head 5, and moves outwards as the tapered expansion head 5 rises. The arrangement of the cambered surface structure can ensure that the expansion piece 6 is always contacted with the outer wall of the conical expansion head 5 and cannot rotate.

Preferably, in the above structure, a rubber pad 9 is disposed at the end of the fixing rod 8 away from the expansion sheet 6. It will be appreciated by those skilled in the art that in order to increase the friction between the fixing rod 8 and the side wall of the horizontal hole 10, the structure is preferably provided with a rubber pad 9 at the end of the fixing rod 8 far from the expansion piece 6, and the acting force with the inner wall of the horizontal hole 10 is increased by the rubber pad 9.

Preferably, the structure further comprises fixing pieces 7, the fixing pieces 7 are arranged at the lower end of the cover body 1 at intervals, and the fixing rods 8 are arranged on the fixing pieces 7 in a penetrating mode, so that the fixing rods 8 are in sliding connection with the cover body 1. It can be understood by those skilled in the art that, in order to facilitate the sliding of the fixing rod 8, the fixing member 7 is preferably disposed at the lower end of the cover 1, the fixing rod 8 is disposed on the fixing member 7 in a penetrating manner, and the fixing rod 8 and the fixing member 7 slide relatively, so that the fixing rod 8 is slidably connected with the cover 1.

Preferably, the fixing members 7 are arranged along the length direction of the fixing rods 8 in the above structure, and each fixing rod 8 is at least penetrated on two fixing members 7. As can be appreciated by those skilled in the art, the fixing members 7 are further arranged along the length direction of the fixing rods 8, the fixing rods 8 are actually and directly penetrated on the fixing members 7, so that the fixing rods 8 are in sliding connection with the cover body 1, in order to ensure that the fixing rods 8 move stably, it is further preferable that each fixing rod 8 is at least penetrated on two fixing members 7, and the fixing members 7 are arranged at intervals so as to support the fixing rods 8.

Preferably, in the above structure, a counter bore 2 is provided in the middle of the cover body 1, the lower part of the counter bore 2 is an adaptive threaded hole, and the screw 3 is in threaded connection with the cover body 1. It can be understood by those skilled in the art that in order to ensure that the upper end face of the cover body 1 is free of protrusions and keep the on-site operation face smooth, the structure is preferably provided with a counter bore 2 in the middle of the cover body 1, the lower part of the counter bore 2 is further provided with an adaptive threaded hole, the screw 3 is in threaded connection with the cover body 1, and the screw 3 is convenient to adjust the conical expansion head 5.

Preferably, in the above structure, an inner hexagonal hole is formed at the upper end of the screw 3. It can be understood by those skilled in the art that, in order to facilitate screwing the screw 3, the structure preferably has an inner hexagonal hole formed at the upper end of the screw 3, so that the screw 3 is of an inner hexagonal screw structure, and the screw 3 can be screwed fast through an inner hexagonal wrench in practice, thereby realizing fast adjustment of the lifting of the conical expansion head 5.

Preferably, the fixing rod 8 is a telescopic rod structure. It can be appreciated by those skilled in the art that in order to meet the needs of the horizontal hole 10 with different sizes, the structure preferably has a telescopic rod structure of the fixing rod 8, so that the length of the fixing rod 8 can be adjusted according to the opening size of the horizontal hole 10 in practice, and the structure is standardized to realize batch production, so that the cost is reduced.

Claims (8)

1. Engineering level entrance to a cave protective cover, its characterized in that: including lid (1), screw rod (3), toper enlarged head (5), dead lever (8) and expansion piece (6), screw rod (3) pass lid (1) and with lid (1) threaded connection, the end of penetrating of screw rod (3) is connected with the tip of toper enlarged head (5), dead lever (8) are radial interval setting in the lower extreme of lid (1), and with lid (1) sliding connection, dead lever (8) inner and expansion piece (6) outer wall connection, expansion piece (6) set up outside toper enlarged head (5), twist screw rod (3) can make toper enlarged head (5) promote expansion piece (6) and remove.

2. The engineered level portal protection cover of claim 1, wherein: the conical expansion head (5) is of a conical structure, and the expansion piece (6) is of an arc surface structure with the upper end inclined towards the middle part of the cover body (1).

3. The engineered level portal protection cover of claim 1, wherein: the end part of the fixing rod (8) far away from the expansion piece (6) is provided with a rubber pad (9).

4. The engineered level portal protection cover of claim 1, wherein: still include mounting (7), mounting (7) interval sets up in lid (1) lower extreme, and dead lever (8) wear to establish on mounting (7) for dead lever (8) and lid (1) sliding connection.

5. The engineered level portal protection cover of claim 4, wherein: the fixing pieces (7) are arranged along the length direction of the fixing rods (8), and each fixing rod (8) is at least arranged on two fixing pieces (7) in a penetrating mode.

6. The engineered level portal protection cover of claim 1, wherein: the middle part of the cover body (1) is provided with a counter bore (2), the lower part of the counter bore (2) is an adaptive threaded hole, and the screw rod (3) is in threaded connection with the cover body (1).

7. The engineered level portal protection cover of claim 6, wherein: an inner hexagonal hole is formed in the upper end portion of the screw rod (3).

8. The engineered level portal protection cover of claim 1, wherein: the fixed rod (8) is of a telescopic rod structure.