Anti-skid well lid sealing performance detection equipment

Abstract

Anti-skid well lid sealing performance detection equipment structurally comprises a detection base used for detecting the sealing performance of an anti-skid well lid and a detection shell detachably connected to the top of the detection base, and a hollow pouring cavity used for containing substances is formed in the detection shell. The top of the detection shell is provided with a first detection opening communicated with the pouring cavity, the first detection opening is used for installing an anti-skid well lid, and at least one pumping and pressing piece is arranged on any accidental wall of the detection shell. The detection equipment provided by the utility model can detect the tightness of the anti-skid well lid by simultaneously utilizing a water pressure test method and an air pressure test method, so that the detection efficiency is improved, the detection time is shortened, and the equipment purchase cost is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of manhole covers, and particularly relates to a sealing detection device for anti-slip manhole covers. Background Art

[0002] In urban construction and industrial infrastructure, manhole covers, as key interface components of underground pipelines, their sealing performance is crucial. It not only ensures the normal operation of the underground pipeline system, prevents liquid leakage, gas escape and foreign object intrusion, but also affects the urban environmental beauty and safety.

[0003] However, there are obvious deficiencies in the existing technology for detecting the sealing performance of manhole covers. Currently, most devices generally adopt a single detection method, such as the traditional water pressure method or air pressure method for detection. The water pressure method uses water as the medium and detects the water tightness of the manhole cover by applying water pressure; when detecting air tightness with the air pressure method, usually a vacuum pump is used to evacuate the inside of the manhole cover or fill it with gas and other operations, and the pressure change is observed; therefore, the existing detection devices have a single function and cannot take into account both air tightness and water tightness detection, and different devices need to be used for multiple detections respectively. Content of the Utility Model

[0004] Aiming at the deficiencies of the above existing technology, the purpose of the utility model is to provide a sealing detection device for anti-slip manhole covers to solve the existing problems.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A sealing detection device for anti-slip manhole covers, its structure includes a detection base for detecting the sealing performance of the anti-slip manhole cover and a detection housing detachably connected to the top of the detection base. A hollow perfusion cavity for accommodating substances is arranged inside the detection housing. The top of the detection housing has a first detection port communicated with the perfusion cavity, and the first detection port is used for installing the anti-slip manhole cover. At least one pressure pumping component is arranged on any outer wall of the detection housing.

[0006] Further, the detection base and the detection housing are nested and fixed with fixing screws.

[0007] Further, the detection base includes a connection part whose top is adapted to the perfusion cavity and a connection base at the bottom. The connection part axially extends into the inner wall of the perfusion cavity for nested connection, and the connection base extends horizontally for supporting and / or installing the anti-slip manhole cover.

[0008] Further, a second detection port axially communicated with the first detection port is arranged at the bottom of the connection base, and a plurality of mounting holes are arranged on the horizontally extending part of the connection base for tightly installing the anti-slip manhole cover.

[0009] Further, an activity sealing cover is movably arranged in cooperation with the second detection port for blocking or opening the second detection port.

[0010] Further, the pumping and pressing member includes a pumping and pressing connection head and a connecting pipe. One end of the connecting pipe is connected to the pumping and pressing connection head, and the other end is connected to an air pump for charging / pumping gas.

[0011] Further, a sealing sleeve is also arranged on the pumping and pressing connection head. The sealing sleeve is tightly connected to the pumping and pressing connection head in a detachable manner, and a sealing rubber ring is arranged inside the sealing sleeve to prevent leakage.

[0012] Further, the detection base and the detection housing are made of at least one of carbon steel, stainless steel, nodular cast iron or metal composite material.

[0013] Further, the detection housing is one of circular or rectangular.

[0014] Further, a support frame is also arranged under the detection base for improving the stability during the detection of water tightness.

[0015] The beneficial effects of the present utility model are as follows: The detection device provided by the present utility model can simultaneously detect the sealing degree of the anti-slip manhole cover by using the water pressure and air pressure test methods, improving the detection efficiency, reducing the detection time, and also reducing the equipment procurement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0017] Figure 1 is a schematic structural diagram of the detection device according to the embodiment of the present utility model;

[0018] Figure 2 is an exploded schematic diagram of the detection device according to the embodiment of the present utility model;

[0019] Figure 3 is a cross-sectional view of the pumping and pressing member according to the embodiment of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the detection device according to another embodiment of the present utility model.

[0021] MAIN REFERENCE NUMERAL DESCRIPTION:

[0022] 1. Detection base; 11. Connection part; 12. Connection base; 121. Installation hole; 13. Second detection port; 14. Activity sealing cover;

[0023] 2. Detection housing; 21. Filling cavity; 22. First detection port; 23. One pressure pumping member; 231. Pressure pumping connector; 232. Connecting pipe; 233. Sealing sleeve;

[0024] 4. Support frame. Detailed implementation manners

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0026] Embodiment 1

[0027] Figure 1 It is a structural schematic diagram of the detection device according to an embodiment of the present utility model. Figure 2 It is an exploded schematic diagram of the detection device according to an embodiment of the present utility model. As Figure 1 shown in Figure 2 The structure of a non-slip manhole cover sealing detection device according to an embodiment of the present utility model will be described in detail.

[0028] A non-slip manhole cover sealing detection device, the structure of which includes a detection base 1 for detecting the sealing performance of a non-slip manhole cover and a detection housing 2 detachably connected to the top of the detection base 1. A hollow filling cavity 21 for accommodating a substance is provided inside the detection housing 2. The substance is a substance filled for detecting the sealing performance, and specifically water or air in this embodiment. The top of the detection housing 2 has a first detection port 22 communicating with the filling cavity 21. The first detection port 22 is used for installing a non-slip manhole cover. The size of the first detection port 22 is adapted to the size of the non-slip manhole cover. After installing the non-slip manhole cover on the first detection port 22, at least one pressure pumping member 23 provided on any outer wall of the detection housing 2, preferably one for cost saving, is used to extract or fill the air in the filling cavity 21 to detect the sealing performance. Among them, the detection housing is correspondingly connected with an airtight detector and a water pressure detector for detecting the sealing performance to feedback a value meeting the sealing standard, and the double testing methods of water pressure and air pressure are adopted to complete the non-slip manhole cover to ensure product quality and safety.

[0029] It should be noted that for the hydraulic pressure test method, the anti-slip manhole cover is installed on the test port of the detection housing 2, and then water is injected into the perfusion cavity 21, and a certain water pressure is applied. During the water injection process, pay attention to observing the rising situation of the water level, and observe whether there is any leakage at the manhole cover or the sealing part. At the same time, observe the water pressure detector (the water pressure detector can be an instrument that only measures the pressure difference when injecting water). When the water pressure value reaches the corresponding standard, check whether there is any leakage at the manhole cover; for the air pressure test method, the anti-slip manhole cover is installed on the test port of the detection housing 2, and then the air extraction and compression part 23 is used to fill the perfusion cavity 21 with gas for inflation and pressure stabilization tests, and observe whether there is any air leakage. At the same time, observe the parameter values on the airtightness detector (the airtightness detector can be an instrument that only measures and displays the pressure difference value when performing positive / negative / differential pressure operations with the help of equipment such as an air pump, or an instrument that can directly perform positive / negative / differential pressure operation tests on the inside of the perfusion cavity 21 and display the pressure difference value). Compare the pressure, time, air leakage volume, etc. to detect the airtightness. According to different detection methods, airtightness detection can also be carried out based on principles such as negative pressure and differential pressure.

[0030] Please refer to Figure 1 and Figure 2 , in this embodiment, the detection base 1 and the detection housing 2 are nested and connected. At the same time, in order to improve stability, fixing screws are also provided for fixation. The fixing screws are fixed along the overlapping part of their nesting. In order to further prevent leakage, a sealing ring and a coated sealant layer can also be set to ensure the sealing degree after nesting and ensure that there is no leakage during the test. Furthermore, the detection base 1 includes a connecting portion 11 and a connecting base 12 provided at the bottom of the connecting portion 11. Correspondingly, the connecting portion 11 and the perfusion cavity 21 located at the top relative to each other have matching dimensions. Among them, the connecting portion 11 extends axially upward into the inner wall of the perfusion cavity 21 to cooperate with the detection housing 2 for nested connection, and the connecting base 12 extends horizontally in all directions for supporting the detection housing 2 to complete the air pressure test method and / or install the anti-slip manhole cover.

[0031] Please refer to Figure 1 and Figure 2, in some preferred embodiments, the hydrostatic test method can be adopted to test the sealing degree of the anti-slip manhole cover. A second detection port 13 axially communicating with the first detection port 22 is provided at the bottom of the connection base 12. That is to say, both the upper and lower ends of the nested detection base 1 and the detection housing 2 have a detection port, which are respectively used for detecting the sealing degree of the anti-slip manhole cover by the air pressure / hydrostatic pressure test method. Correspondingly, a plurality of mounting holes 121 are provided on the lateral extension part of the connection base 12. The size and position of the mounting holes 121 will specifically correspond to the anti-slip manhole cover to ensure its tight installation. It should be noted that when the air pressure test method is used to test the sealing degree, in order to prevent water leakage, the second detection port 13 should be blocked. Therefore, a movable sealing cover 14 is movably arranged in cooperation with the second detection port 13 for blocking or opening the second detection port 13. And when installing the movable sealing cover 14, waterproof measures need to be taken on the movable sealing cover 14 and / or the second detection port 13, such as additionally setting a sealing rubber ring, coating waterproof paint, etc. At the same time, when it is necessary to switch to the hydrostatic test method, only the movable sealing cover 14 needs to be removed, and the anti-slip manhole cover is installed for the hydrostatic test method test.

[0032] Please refer to Figure 2 , the pumping and pressing member 23 includes a pumping and pressing connection head 231 and a connecting pipe 232. One end of the connecting pipe 232 is connected to the pumping and pressing connection head 231, and the other end is connected to an air pump for charging / pumping gas. When the air pressure test method is used to detect the airtightness, the movable sealing cover 14 is tightly installed, and then the anti-slip manhole cover is installed on the first detection port 22. The air pump is used to fill the perfusion cavity 21 with gas, and then the value of the airtightness detector is observed and whether there is air leakage. It is also possible to directly perform positive / negative / differential pressure operations on the existing airtightness detector to judge whether the pressure difference and the air leakage situation meet the standards, so as to ensure the sealing degree of the anti-slip manhole cover and improve the product quality.

[0033] Please refer to Figure 3 , a sealing sleeve 233 is further provided on the pumping and pressing connection head 231. The sealing sleeve 233 is tightly connected to the pumping and pressing connection head 231 in a detachable manner, specifically using one of threaded connection and ferrule connection. At the same time, in order to prevent the performance of water leakage, a sealing rubber ring is provided inside the sealing sleeve 233. The sealing rubber ring can well fill the gap at the connection joint of the sealing sleeve 233 and the pumping and pressing connection head 231, and further prevent leakage.

[0034] To meet the test requirements, the materials of the detection base 1 and the detection housing 2 are at least one of carbon steel, stainless steel, nodular cast iron or metal composite materials. Among them, carbon steel has high strength and can withstand large pressures, making it suitable for manufacturing pressure-bearing components. However, anti-corrosion measures need to be taken, such as spraying anti-rust paint to increase durability; stainless steel has strong corrosion resistance and a long service life; nodular cast iron has both the wear resistance and toughness of cast iron, good casting performance, and can be made into complex shapes; metal composite materials can use aluminum-based composite materials, which have good strength, stiffness and heat resistance, light weight and good formability. In this embodiment, the detection housing 2 is a rectangular housing structure made of aluminum-based composite material, and this shape of the detection device is suitable for anti-slip manhole covers with rectangular structures.

[0035] Embodiment 2

[0036] For the sake of simplicity in description, the parts that are the same as those in Embodiment 1 will not be described again. Now, the structures different from those in Embodiment 1 of the present utility model will be mainly described. The difference between Embodiment 2 and Embodiment 1 lies only in the shape of the detection housing.

[0037] To improve the adaptability, the detection housing 2 is circular, and this circular detection device is suitable for anti-slip manhole covers with circular structures, which can increase the types of manhole covers that the device can test and improve the applicability.

[0038] Embodiment 3

[0039] For the sake of simplicity in description, the parts that are the same as those in other embodiments will not be described again. Now, the structures different from those in other embodiments of the present utility model will be mainly described. The difference between Embodiment 3 and other embodiments lies only in the additional setting of a pressure-bearing structure.

[0040] Please refer to Figure 4 , for the convenience of testing, a support frame 4 is further provided below the detection base 1. The support frame 4 is used to increase the height of the test. When the detection device composed of the detection base 1 and the detection housing 2 tests the anti-slip manhole cover, the height of the device can be appropriately increased, which is convenient for the test personnel to install and test, reduces the workload, improves the comfort level. The support frame 4 is integrally welded to the detection base 1 or connected by means of detachable screw fastening, etc., to improve the stability during the detection of water tightness.

[0041] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0042] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-slip manhole cover sealing detection device, characterized in that, Its structure includes a detection base (1) for detecting the sealing performance of an anti-slip manhole cover and a detection housing (2) detachably connected to the top of the detection base (1). A hollow perfusion cavity (21) for accommodating substances is provided inside the detection housing (2). The top of the detection housing (2) has a first detection port (22) communicating with the perfusion cavity (21). The first detection port (22) is used for installing the anti-slip manhole cover. At least one pumping and pressing member (23) is provided on any outer wall of the detection housing (2).

2. The anti-slip manhole cover sealing performance detection device according to claim 1, characterized in that: The detection base (1) and the detection housing (2) are nested and connected and fixed with fixing screws.

3. The anti-slip manhole cover sealing detection device according to claim 2, characterized in that: The detection base (1) includes a connection part (11) with a top adapted to the perfusion cavity (21) and a connection base (12) at the bottom. The connection part (11) axially extends into the inner wall of the perfusion cavity (21) for nested connection in cooperation. The connection base (12) extends horizontally for supporting and / or installing the anti-slip manhole cover.

4. The anti-slip manhole cover sealing detection device according to claim 3, wherein: A second detection port (13) axially communicating with the first detection port (22) is provided at the bottom of the connection base (12), and a plurality of mounting holes (121) are provided on the horizontally extending part of the connection base (12) for tightly installing the anti-slip manhole cover.

5. The anti-slip manhole cover sealing detection device according to claim 4, characterized in that: An activity sealing cover (14) is movably arranged in cooperation with the second detection port (13) for blocking or opening the second detection port (13).

6. The anti-slip manhole cover sealing detection device according to claim 1, characterized in that: The pumping and pressing member (23) includes a pumping and pressing connection head (231) and a connection pipe (232). One end of the connection pipe (232) is connected to the pumping and pressing connection head (231), and the other end is connected to an air pump for filling / withdrawing gas.

7. An anti-slip manhole cover sealing performance detection device according to claim 6, characterized in that: A sealing sleeve (233) is further provided on the pumping and pressing connection head (231). The sealing sleeve (233) is tightly connected to the pumping and pressing connection head (231) in a detachable manner. A sealing rubber ring is provided inside the sealing sleeve (233) to prevent leakage.

8. The anti-slip manhole cover sealing performance detection device according to claim 1, wherein: The detection base (1) and the detection housing (2) are made of at least one of carbon steel, stainless steel, nodular cast iron or metal composite material.

9. The anti-slip manhole cover sealing performance detection device according to claim 1, wherein: The detection housing (2) is one of circular or rectangular.

10. A sealing performance detection device for a non-slip manhole cover according to claim 1, characterized in that: A support frame (4) is further provided below the detection base (1) to improve the stability during the detection of water tightness.

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