An embedded pressure measuring tube nozzle protection device

Abstract

The utility model provides a kind of embedded pressure measuring tube nozzle protection device, including protection main body, the tube body of protection main body is inserted into pressure measuring tube, the limiting plate of protection main body is located pressure measuring tube upper end and is limited to the downward of protection main body;The tube body of protection main body is embedded cover, cover is blocked to the central hole of protection main body;Left and right outside cover is provided with protrusion, and left and right on corresponding protection main body is provided with longitudinal sliding slot matched with protrusion, and longitudinal sliding slot is communicated with annular groove in lower end;Protrusion enters annular groove by longitudinal sliding slot and is limited by annular groove up and down.The embedded pressure measuring tube nozzle protection device provided by the utility model can prevent foreign matter from falling in, is convenient to replace, and observation pressure measuring tube water level is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge pipe end protection devices, and in particular to an embedded pressure gauge pipe end protection device, which is suitable for the protection of pressure gauge pipes in various hydraulic structures such as dam pressure gauge pipes and lock pressure gauge pipes. Background Technology

[0002] The protective device for the pressure testing pipe inlet of the Three Gorges Dam ship lock is generally installed using expansion bolts and a flange (a solid plate with multiple mounting holes around its edge). Because the pressure testing pipe inlet is located above the road surface, and the flange and expansion bolts are above the road surface, they are subject to long-term vehicle pressure, which can easily lead to the following problems with the protective device at the pressure testing pipe inlet:

[0003] 1) After long-term rolling, the expansion bolts become deformed and stripped, making it impossible to install flanges and nuts, and the protective devices cannot be replaced.

[0004] 2) The pressure testing pipe opening is protected by a flange, but after the expansion bolts are rolled and stripped, the flange placed at the pipe opening cannot be fixed due to the damaged threads. The force generated by the vehicle passing by causes the flange to shift, exposing the pipe opening and failing to provide protection.

[0005] 3) Screws and nuts protruding from the road surface pose a safety hazard to the vehicle itself while driving. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an embedded pressure measuring pipe inlet protection device, which can effectively protect the pressure measuring pipe from being directly crushed and damaged by vehicles and other mechanical equipment; even if the protection device is damaged, it can be easily and quickly replaced; on the other hand, the protection device seals the pressure measuring pipe to prevent foreign objects from falling in; at the same time, it is more convenient to observe the water level of the pressure measuring pipe; since screws and nuts are not used for fixing, no sharp or hard objects are exposed on the road surface, reducing safety hazards.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] An embedded pressure testing tube port protection device includes a protection body, the tube of which is inserted into the pressure testing tube, a limiting plate of which is located at the upper end of the pressure testing tube and limits the protection body downward; and a cap is embedded in the tube of the protection body and blocks the central hole of the protection body.

[0009] The cover has protrusions on the left and right sides, and the corresponding protective body has longitudinal grooves on the left and right sides that match the protrusions. The longitudinal grooves are connected to the annular groove at the lower end. The protrusions enter the annular groove through the longitudinal grooves and are limited in the upper and lower positions by the annular groove.

[0010] The tube body and the sidewalls of the cover of the protective body are both conical.

[0011] The cap has an opening at the top, with notches extending outwards to the left and right. The cap at the bottom of the opening has a limiting groove, the diameter of which is greater than the length of the line connecting the outermost edges of the two notches.

[0012] The cover is equipped with a lever.

[0013] The lever includes a flat plate with a handle fixed to its upper end; when the flat plate is inserted into the socket, its two sides fit against the side wall of the notch.

[0014] The upper end of the cover is provided with a lifting ring, and the uppermost part of the lifting ring is lower than the upper end of the protective body.

[0015] Both the cover and the protective body are made of stainless steel.

[0016] This utility model provides an embedded pressure measuring tube port protection device, which has the following technical effects:

[0017] 1) Easy to repair and replace. After the protective device is damaged by being run over by a vehicle, it can be easily removed and replaced without the need for nuts and bolts. It will not be damaged beyond repair and thus lose its protective function.

[0018] 2) It is easy to observe; simply remove the cap and place the water level gauge for observation. There is no need to remove the four nuts and then the flange before placing the water level gauge for observation.

[0019] 3) No safety hazards, no need for screw fixing and protection devices, no sharp or hard objects such as nuts and bolts protruding from the road surface, basically flush with the road surface, no risk of tire blowout, making it safer.

[0020] 4) More durable: Compared with the original protective device, it is not fixed with screws, so the relevant fixing parts of the protective device will not be damaged by vehicles running over it, making it more widely applicable and more durable. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a cross-sectional view of the installation of this utility model (first state).

[0023] Figure 2 This is a cross-sectional view of the installation of this utility model (second state).

[0024] Figure 3 This is a schematic diagram of the structure of the cap in this utility model.

[0025] Figure 4 This is a structural schematic diagram of the protected subject in this utility model (first perspective).

[0026] Figure 5 This is a structural schematic diagram of the protected subject in this utility model (second perspective).

[0027] Figure 6 This is a schematic diagram of the pull rod in this utility model.

[0028] Figure 7 This is a cross-sectional view of the cooperation between the pull rod and the cover in this utility model.

[0029] In the diagram: 1. Cover; 2. Protective body; 3. Protrusion; 4. Longitudinal groove; 5. Annular groove; 6. Inlet; 7. Notch; 8. Limiting groove; 9. Straight plate; 10. Handle; 11. Pressure testing tube. Detailed Implementation

[0030] like Figure 1-2 As shown, an embedded pressure testing tube inlet protection device includes a protective body 2, which comprises a tube body that is a hollow structure extending vertically. A limiting plate is fixed to the upper edge of the hollow tube body. The hollow tube body of the protective body 2 is inserted into the pressure testing tube 11, serving as a limiting device to prevent the protective body 2 from shifting when a vehicle runs over it. The limiting plate rests on the upper end of the pressure testing tube 11, providing support for the protective body 2 and preventing the hollow tube body from moving downwards. A cap 1 is embedded inside the hollow tube body, sealing the protective body 2 and preventing foreign objects from falling into the pressure testing tube 11.

[0031] The cover 1 has protrusions 3 extending outwards from the lower left and right sides. Correspondingly, the protective body 2 has longitudinal grooves 4 on the left and right sides that match the protrusions 3. These longitudinal grooves 4 communicate with a horizontal annular groove 5 at the lower end. When the cover 1 is inserted into the protective body 2, the protrusions 3 insert into the longitudinal grooves 4 and slide downwards. After the protrusions 3 pass through the longitudinal grooves 4 and enter the annular groove 5, they rotate 90 degrees, and the protrusions 3 are restricted by the annular groove 5 and cannot move up or down. This prevents them from bouncing due to vibration when a vehicle passes by.

[0032] The protective body 2 and the sidewalls of the cap 1 are both conical. The protective body 2 can fit well with the cap 1, preventing it from popping out easily.

[0033] The cap 1 has an opening 6 at its upper end, with notches 7 extending outwards from the opening 6 on both sides. A limiting groove 8 is provided inside the cap 1 at the lower end of the opening 6. The diameter of the limiting groove 8 is greater than the length of the line connecting the outermost edges of the two notches 7. This structure provides an operating point, facilitating the later lifting of the cap 1 directly upwards or using a tool.

[0034] The cover 1 is equipped with a pull rod. The pull rod includes a flat plate 9, with a handle 10 fixed to the upper end of the flat plate 9; when the flat plate 9 is inserted into the insertion port 6, its two sides are in contact with the side walls of the notch 7. The flat plate 9 can enter the limiting groove 8 through the insertion port 6 and the notch 7, and then after rotating 90 degrees, the flat plate 9 is offset from the notch 7, forming a... Figure 7As shown in the diagram, pulling up handle 10 will directly lift the cover 1. This allows for easy insertion of the water level gauge through the central hole of the protective body 2 for observation.

[0035] In addition to the socket 6 and the lever, a lifting ring can also be provided directly on the upper end of the cover 1. The lifting ring can be a flexible lifting ring, and the lifting ring is lower than the upper end of the protective body 2. This will facilitate the lifting operation of the cover 1 later.

[0036] Both the cover 1 and the protective body 2 are made of stainless steel. This gives them a significant weight, preventing them from easily springing up, while also providing high strength and hardness to ensure they will not be damaged even after being run over for a long time.

[0037] The entire protective device weighs 2kg.

[0038] Working principle and process:

[0039] 1) When the pressure measuring tube is installed, the tube body of the protective body 2 matches the pressure measuring tube 11 and is inserted into the pressure measuring tube 11. The tube body fits into the tube wall of the pressure measuring tube 11. At the same time, the weight of the protective device itself is used to ensure that it will not bounce or shift after being run over by a vehicle.

[0040] 2) Install a cover 1 inside the tube of the protective body 2. The cover 1 is located inside the protective body 2 to avoid direct contact with vehicles and other mechanical equipment. After being crushed, the cover 1 will not bounce up and displace.

[0041] 3) When water level observation is required, the cover 1 can be removed so that the water level gauge can be inserted to observe the water level; when water level observation is not required, the cover 1 is inserted to seal and protect the central hole of the main body 2 to prevent foreign objects from entering.

Claims

1. An embedded pressure testing tube inlet protection device, characterized in that: Includes a protective body (2), the tube of the protective body (2) is inserted into the pressure measuring tube (11), the limiting plate of the protective body (2) is located at the upper end of the pressure measuring tube (11) and limits the protective body (2) downward; the tube of the protective body (2) is embedded with a cap (1), and the cap (1) seals the center hole of the protective body (2); The cover (1) has protrusions (3) on the left and right sides, and the corresponding protective body (2) has longitudinal grooves (4) on the left and right sides that match the protrusions (3). The longitudinal grooves (4) are connected to the annular groove (5) at the lower end. The protrusions (3) enter the annular groove (5) through the longitudinal grooves (4) and are limited in the upper and lower positions by the annular groove (5).

2. The embedded pressure measuring tube port protection device according to claim 1, characterized in that: The tube body of the protective body (2) and the side wall of the cap (1) are both conical.

3. The embedded pressure measuring tube inlet protection device according to claim 2, characterized in that: The cap (1) has an opening (6) at the top, and notches (7) extend outward from the opening (6) on the left and right sides. The cap (1) at the bottom of the opening (6) has a limiting groove (8), and the diameter of the limiting groove (8) is greater than the length of the line connecting the outermost edges of the two notches (7).

4. The embedded pressure measuring tube port protection device according to claim 3, characterized in that: The cover (1) is equipped with a lever.

5. The embedded pressure measuring tube port protection device according to claim 4, characterized in that: The lever includes a flat plate (9), and a handle (10) is fixed to the upper end of the flat plate (9); wherein, when the flat plate (9) is inserted into the socket (6), its two sides are in contact with the side wall of the notch (7).

6. The embedded pressure measuring tube port protection device according to claim 2, characterized in that: The upper end of the cover (1) is provided with a lifting ring, and the uppermost end of the lifting ring is lower than the uppermost end of the protective body (2).

7. The embedded pressure measuring tube port protection device according to claim 1, characterized in that: Both the cover (1) and the protective body (2) are made of stainless steel.

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