CN208185449U - Manhole well sealing ring - Google Patents

Abstract

A kind of manhole well sealing ring, the internal edge for being r with central point, with central point distance and the external margin for being R with central point distance, wherein R > r, forms the planar annular with tow sides between internal edge and external margin.The tow sides of the planar annular are equipped at least twice annular waterline, and it is triangle that the annular waterline, which is using the section of central point as the concentric circles in the center of circle and in the radial direction,.The utility model improves the airtight quality between manhole well and mounting flange, achieves good sealing effect.

Description

Manhole well sealing ring

Technical field

The utility model relates to a kind of water-tight equipment, especially a kind of manhole well sealing ring.

Background technique

The increasingly strict construction to gas station of environmental requirement is put forward higher requirements: all with buried tank oil inlet and outlet phase The pipe joint of connection, valve, observation instrument should be arranged in manhole well, to avoid wanting in Groundwater infiltration manhole well The underground container is asked to have reliable sealing performance.Current underground container mostly uses greatly liquid sealant and planar seal ring, practical Working procedure is cumbersome, and airtight quality depends entirely on the smearing quality of sealant, once station construction is completed under spot again Container infiltration is difficult to repairing and solves.

Utility model content

In order to overcome drawbacks described above, the utility model provides a kind of manhole well sealing ring, improves airtight quality, take Obtained good sealing effect.

The utility model is to solve technical solution used by its technical problem: a kind of manhole well sealing ring, tool There are central point, the internal edge for being r with central point distance and the external margin for being R with central point distance, wherein R > r, internal The planar annular with tow sides is formed between edge and external margin, the tow sides of the planar annular are equipped at least Twice annular waterline, it is triangle that the annular waterline, which is using the section of central point as the concentric circles in the center of circle and in the radial direction, Shape.

The planar annular is equipped with several round waterlines and arc water as a further improvement of the utility model, Line, the circle waterline and arc water line are intervally installed to which round waterline is connected in series arc water line, the circle The center of circle of waterline is bolt through-hole within the circle waterline on the circumference where arc water line.

The section of the round waterline and arc water line in the radial direction is also as a further improvement of the utility model, For triangle.

The annular waterline includes other than internally positioned edge and round water as a further improvement of the utility model, Annular waterline within line, arc water line and the outer ring other than round waterline, arc water line and within external margin Shape waterline, the annular waterline and outer ring waterline are two pass waterline.

The annular waterline of the tow sides, round waterline and arc water line as a further improvement of the utility model, It is arranged symmetrically.

The beneficial effects of the utility model are: by the waterline of triangle between the bottom and sealing ring of manhole well and Sealing is respectively formed between sealing ring and mounting flange；By the way that round waterline is arranged in the periphery of bolt through-hole and by multiple circles The arc water line that waterline is connected to each other, it will be able to further sealing is formed in the position of bolt through-hole, thus the utility model Manhole well improves the airtight quality between manhole well and mounting flange with sealing ring, achieves good sealing effect.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model manhole well sealing ring.

Fig. 2 is the cross-sectional view of the utility model manhole well sealing ring A-A along Fig. 1.

Fig. 3 is the cross-sectional view of the utility model manhole well sealing ring B-B along Fig. 1.

Fig. 4 is the partial enlarged view of C portion in Fig. 1.

Fig. 5 is the usage state diagram of the utility model manhole well sealing ring.

Fig. 6 is the partial enlarged view of the part D in Fig. 5.

The figures above is compareed, explanation is supplemented as follows:

1--- central point 2--- internal edge

3--- external margin 4--- planar annular

5--- annular waterline 51--- annular waterline

52--- outer ring waterline 6--- circle waterline

7--- arc water line 8--- clamping screw

9--- manhole well 10--- mounting flange

Specific embodiment

Fig. 1 to Fig. 6 is please referred to, a kind of manhole well sealing ring has central point 1 and central point 1 apart from the inside for r Edge 2 and with central point 1 apart from the external margin 3 for R, wherein R > r, being formed between internal edge 2 and external margin 3 has The planar annular 4 of tow sides.The tow sides of the planar annular 4 are equipped at least twice annular waterline 5, the annular water Line 5 be with central point 1 for the center of circle concentric circles and section in the radial direction be triangle.The manhole well sealing ring It is installed between the bottom of gas station's manhole well 9 and mounting flange 10, when manhole well 9 is pressed on installation by clamping screw 8 On flange 10, the triangular waterplane on sealing ring is squeezed and deformed by external force, and the lip and sealed plane of triangular waterplane are close Fitting, to form reliable sealing.

Fig. 2 to Fig. 4 is please referred to, the planar annular 4 is equipped with several round waterlines 6 and arc water line 7, the circle Waterline 6 and arc water line 7 are intervally installed to which round waterline 6 is connected in series arc water line 7, the circle waterline 6 The center of circle is bolt through-hole within the circle waterline 6 on the circumference where arc water line 7.Because of the certainly round water of clamping screw 8 It is passed through in line 6 and locks manhole well 9 and mounting flange 10 up and down, therefore, underground water can be penetrated through bolt through-hole, in bolt Round waterline 6 is arranged in the periphery of via hole, it will be able to which, in the position seals of bolt through-hole, arc water line 7, which connects round waterline 6, to be connected It connects, forms further sealing.In preferred embodiment, the section of the circle waterline 6 and arc water line 7 in the radial direction It also is triangle.The waterline of triangle, leakproofness are high.

Referring to FIG. 4, the annular waterline 5 includes other than internally positioned edge 2 and within round waterline 6, arc water line 7 Annular waterline 51 and outer ring waterline 52 positioned at round waterline 6, other than arc water line 7 and within external margin 3, institute It states annular waterline 51 and outer ring waterline 52 is two pass waterline.Entire sealing element and working face cooperate composition multiple tracks Flat seal line, sealing effect are good.

Fig. 2, Fig. 3 and Fig. 6 are please referred to, the annular waterline 5 of the tow sides, round waterline 6 and arc water line 7 are in symmetrical Arrangement.Sealing is respectively formed between the bottom and sealing ring of manhole well 9 and between sealing ring and mounting flange 10, that is, positive and negative Seal.

Referring to FIG. 6, the manhole well with sealing ring be installed in gas station's manhole well 9 bottom and mounting flange 10 it Between, when manhole well 9 is pressed on mounting flange 10 by clamping screw 8, the triangular waterplane on sealing ring is squeezed by external force to be become Shape, lip and the sealed plane of triangular waterplane fit closely, and especially form in the position of bolt through-hole reliable close Envelope.

Claims (5)

1. a kind of manhole well sealing ring, the internal edge for being r with central point, with central point distance and with central point distance For the external margin of R, wherein R > r, forms the planar annular with tow sides, feature between internal edge and external margin Be: the tow sides of the planar annular are equipped at least twice annular waterline, and the annular waterline is using central point as the center of circle Concentric circles and section in the radial direction be triangle.

2. manhole well sealing ring according to claim 1, it is characterized in that: the planar annular is equipped with several circles Waterline and arc water line, the circle waterline and arc water line are intervally installed to be connected to which arc water line connects round waterline It connects, the center of circle of the circle waterline is bolt through-hole within the circle waterline on the circumference where arc water line.

3. manhole well sealing ring according to claim 2, it is characterized in that: the circle waterline and arc water line are in radius Section on direction is also triangle.

4. manhole well sealing ring according to claim 2, it is characterized in that: the annular waterline includes internally positioned edge In addition and the annular waterline within round waterline, arc water line and it is located at other than round waterline, arc water line and external edge Outer ring waterline within edge, the annular waterline and outer ring waterline are two pass waterline.

5. manhole well sealing ring according to claim 4, it is characterized in that: the annular waterline of the tow sides, circle Waterline and arc water line are arranged symmetrically.