CN210992750U

CN210992750U - Anti-theft upper cover of fire hydrant

Info

Publication number: CN210992750U
Application number: CN201921130366.5U
Authority: CN
Inventors: 徐强; 王颖峰; 张翼; 刘刚
Original assignee: Shanghai Junyan Sensor Technology Co ltd
Current assignee: Shanghai Junyan Sensor Technology Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-07-14
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a fire hydrant theftproof upper cover, include: the middle of the upper cover body is provided with a through hole, and the upper surface of the upper cover body is provided with a fixing bolt hole; the upper end of the screw rod is provided with an inwards sunk threaded hole, the lower end of the screw rod is provided with a threaded section, and the length of the threaded section is less than or equal to the depth of the threaded fixing hole at the upper end of the fire hydrant body; and the anti-theft screw penetrates through the fixing bolt hole to lock the screw rod on the upper cover body. The application discloses fire hydrant upper cover can play fine theftproof effect, can't open the upper cover through ordinary spanner.

Description

Anti-theft upper cover of fire hydrant

Technical Field

The utility model relates to a fire control technical field, the more specifically says, is a fire hydrant theftproof upper cover.

Background

The fire hydrant plays a great role in fire fighting, and the maintenance of the stable water pressure of the fire hydrant is the key importance in fire fighting. In order to prevent the problems of unstable water pressure and the like caused by stealing of water in the fire hydrant, the existing fire hydrant is provided with an anti-theft upper cover. As shown in fig. 1 and 2, the conventional fire hydrant has a through hole in the middle of the upper cap 2 for the screw head 3 to pass through, and a protection wall 21 is formed around the through hole, and a special wrench 4 is required to be inserted into the protection wall 21 when the screw head needs to be unscrewed.

However, the upper cover 2 is further provided with a circle of bolt holes 22 on the upper surface, and the bolt 5 passes through the bolt holes 22 to connect the upper cover 2 with the bolt body 1 of the fire hydrant, and is locked at the bottom of the bolt 5 by the nut 6. Referring to fig. 1, the bottom of the bolt is arranged outside the bolt body 1, and can be opened by a common wrench, and the upper cover 2 can be taken down after the bolts around are opened, so that the purpose of theft prevention cannot be achieved.

SUMMERY OF THE UTILITY MODEL

Because the technical problem exists among the prior art, this application provides a fire hydrant theftproof upper cover, and its aim at solves the problem that the upper cover of fire hydrant can't play the theftproof effect among the prior art.

In order to achieve the technical purpose, the following technical scheme is adopted in the application:

fire hydrant theftproof upper cover includes: the middle of the upper cover body is provided with a through hole, and the upper surface of the upper cover body is provided with a fixing bolt hole; the upper end of the screw rod is provided with an inwards sunk threaded hole, the lower end of the screw rod is provided with a threaded section, and the length of the threaded section is less than or equal to the depth of the threaded fixing hole at the upper end of the fire hydrant body; and the anti-theft screw penetrates through the fixing bolt hole to lock the screw rod on the upper cover body.

Preferably, the fire hydrant theftproof upper cover body is cylindrical, the interior of the fire hydrant theftproof upper cover body is hollow, and two fixing bolt holes are formed in the upper surface of the upper cover body.

Preferably, a stepped hole is formed at the joint of the bottom of the upper cover body and the outer side wall of the upper end of the fire hydrant body.

Preferably, the upper cover body is made of a non-metal material.

Preferably, the periphery of the upper surface of the through hole of the upper cover is provided with a protective wall protruding outwards.

Due to the adoption of the technical scheme, the fire hydrant upper cover can play a good anti-theft effect, and the upper cover cannot be opened through a common wrench.

Drawings

FIG. 1 is a cross-sectional view of a prior art fire hydrant;

FIG. 2 is a schematic view of an upper cover structure of a conventional hydrant;

FIG. 3 is a schematic view of the first embodiment of the present application;

FIG. 4 is a schematic structural view of a fire hydrant antitheft upper cover according to a first embodiment of the present application;

fig. 5 is a schematic structural view of a fire hydrant antitheft upper cover according to a second embodiment of the present application.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

The anti-theft upper cover of the fire hydrant comprises an upper cover body 71, a screw rod 72 and an anti-theft screw 73. The detailed structure of the present application is described below with reference to fig. 3 and 4.

A through hole 711 is provided in the middle of the upper cover body 71, and the through hole 711 is used for a bolt head or other joint for adjusting a hydrant valve switch to pass through. To increase the water resistance, a ring of grooves (not shown in the figures) is provided on the inner wall of the through hole for embedding a waterproof gasket. The upper surface of the upper cover body 1 is provided with a fixing bolt hole 712 for the anti-theft bolt 73 to pass through.

Referring to fig. 3, the screw 72 has an inwardly recessed threaded bore at its upper end and a threaded section 721 at its lower end. The length of the thread section 721 is less than or equal to the depth of the thread fixing hole at the upper end of the fire hydrant body 1. In the tightened state, the threaded section 721 is confined in a threaded fixing hole in the upper end of the hydrant body 1. Compared with the prior art, the anti-theft nut is omitted, a good anti-theft effect can be achieved, and the problem that the screw 72 is exposed to cause theft is not worried.

The anti-theft screw 73 passes through the fixing bolt hole to lock the screw rod 2 on the upper cover body 1. The screw head of the antitheft screw 73 is restricted to the upper end of the upper cover body 71. The antitheft screw 73 requires a special tool to open.

In addition, the fire hydrant theftproof upper cover body 71 of the application is cylindrical, is hollow inside, and is used for installing a series of electronic elements and is used for being matched with an intelligent fire hydrant to be used. Two fixing bolt holes 712 are provided on the upper surface of the upper lid body. A step hole 713 is formed at the joint of the bottom of the upper cover body 71 and the outer side wall of the upper end of the fire hydrant body, so that the close combination and the waterproofness of the upper cover body 71 and the fire hydrant body 1 can be ensured.

The cover 71 of the present application is incorporated in the smart hydrant. Since electronic components such as a signal transmitter are provided in the upper cover, the upper cover body 71 is made of a non-metal material to ensure communication.

In conclusion, the anti-theft upper cover of the fire hydrant saves the nut, is arranged into the thread section through the bottom of the screw rod, is directly locked at the upper end of the fire hydrant body, and is combined with the anti-theft screw, so that the problem that the upper cover cannot be removed without a special tool can be solved, and the anti-theft effect is achieved.

Referring to fig. 4, the invention is a fire hydrant theft-proof upper cover of a second embodiment of the present application. Compared with the first embodiment, the structure of the anti-theft device is characterized in that the periphery of the upper surface of the through hole of the upper cover is provided with the protective wall 8 protruding outwards, and the anti-theft device can further play a role in preventing theft through the protective wall 8, and can be opened only by matching with a special wrench.

The above-described embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art will recognize that changes and modifications can be made in the invention as described herein without departing from the scope of the invention as defined by the appended claims.

Claims

1. Fire hydrant theftproof upper cover, its characterized in that includes:

the middle of the upper cover body is provided with a through hole, and the upper surface of the upper cover body is provided with a fixing bolt hole;

the upper end of the screw rod is provided with an inwards sunk threaded hole, the lower end of the screw rod is provided with a threaded section, and the length of the threaded section is less than or equal to the depth of the threaded fixing hole at the upper end of the fire hydrant body;

and the anti-theft screw penetrates through the fixing bolt hole to lock the screw rod on the upper cover body.

2. The fire hydrant antitheft upper cover according to claim 1, wherein the fire hydrant antitheft upper cover body is cylindrical and hollow inside, and two fixing bolt holes are provided on an upper surface of the upper cover body.

3. The fire hydrant antitheft upper cover according to claim 1, wherein a stepped hole is provided at a junction of the bottom of the upper cover body and the outer side wall of the upper end of the fire hydrant body.

4. The fire hydrant antitheft upper cover according to claim 1, wherein the upper cover body is made of non-metallic material.

5. The fire hydrant antitheft upper cover according to claim 1, characterized in that a protection wall protruding outward is provided around the upper surface of the perforation of the upper cover.