CN216515741U - Clip for reducing noise of inspection well cover on premise of not prying up inspection well cover - Google Patents

Abstract

The invention provides a noise reduction method for an inspection well cover, which is characterized in that on the premise of not prying up the inspection well cover, clips made of hard and non-fragile materials, specifically three types of plug pin type clips, insertion type clips and three-dimensional type clips are clamped between an outer ring of the inspection well cover and an inner ring of a well frame, so that the inspection well cover can not or almost can not move relative to the well frame to realize noise reduction. The method is simple and practical, can be realized without great strength and larger tools, and can also be used for solving the problems of damage and settlement of the inspection well and surrounding roads and the like. Meanwhile, the invention provides three types of clips, namely a latch type clip, an insert type clip, a three-dimensional type clip and the like, which can be very conveniently used for solving the problem of inspection well cover noise in daily life.

Description

Clip for reducing noise of inspection well cover on premise of not prying up inspection well cover

Technical Field

The invention belongs to the field of machinery, and particularly relates to a clip for reducing the noise of an inspection well cover on the premise of not prying up the inspection well cover.

Background

The inspection well is an underground space for transferring and controlling urban underground pipelines. The ground access is called a sand well mouth or an inspection well. The inspection shaft is usually covered by an inspection shaft cover. In cities, all public water supplies, sewer pipes, telephone lines and optical fiber networks may be connected through underground passages under inspection wells. The inspection well is an outlet of the inspection well to the ground and is covered by an inspection well cover. The underground pipeline is mostly linear, when the underground pipeline needs to turn, an inspection well is arranged at a turning position, and the purpose is to ensure that the linear pipeline is not easy to block and a pipeline is easy to install. In addition, in order to facilitate the work and the safety, a manhole is installed in the middle of a pipeline with a certain length so as to facilitate the entrance and exit of the pipeline. Inspection shaft lid, the lid of inspection shaft. The inspection well cover is mostly round or rectangular in shape and just can be used for people to get in and out. The cover is made of iron for resisting vehicle rolling, various patterns are arranged on the cover, so that the cover is convenient to identify and can prevent traffic accidents caused by excessive slipping in rainy days. There are many underground pipes in urban construction, such as sewers, underground gas pipes, water supply pipes, power pipes, communication pipes, defense pipes, etc., which have an outlet to the ground at every other section, the section from the pipe to the ground is called a manhole, which is usually flush with the ground, and therefore a cover is needed to cover the manhole, called a manhole cover.

Generally, the diameters of the inspection well covers are 600MM, 700MM and 800MM, and the inspection well covers are common and are used in many cases. But the most common is the 600MM type. But some are about 550MM, and the utilization rate is higher. However, whatever the size standard, the selection requirement is selected according to the load bearing and the use environment, so that any one of the well lids is not selected arbitrarily when the well lid is used. The well lids of different materials are of different thickness. The common well covers are basically as follows: 1. the regenerated resin composite material inspection well cover: the heavy thickness is not less than 70mm, the common thickness is not less than 50mm, and the light thickness is not less than 20mm according to the GJ/T121-2000 specification. 2. Nodular cast iron manhole cover: according to GB/T23858-2009, A15 should be no less than 20mm (for green belts), B125 should be no less than 30mm (for sidewalks and non-motor vehicle lanes), C250 should be no less than 30mm (for residential districts), D400 should be no less than 50mm (for urban highways), E600 should be no less than 50mm (for freight stations and wharfs), and F900 should be no less than 50mm (for aircraft runways). In China, the national standards of well lids are various, including double-layer, single-layer, cast iron, nodular cast iron, composite, cement, magnesite and the like, and the diameters of the well lids are as follows: 600mm, 700mm, 800mm, 750 mm 450mm, 600mm, 400 mm 600mm, bearing capacity of 240KN for heavy duty, 100KN for normal duty, 20KN for light duty, 8000KN for extra heavy duty, and the like. The existing 8 relevant standards of inspection well covers are respectively as follows: EN124 drainage ditch cover and inspection well cover of lane footpath, CJ/T3012-93 cast iron inspection well cover, CJ/T121-. The european standard EN124, which is internationally universal and approved by CEN (technical commission for drainage) on 6.6.1994, is applicable to well covers of various materials, and it is specified that the standard is in any case an undisputed international standard. Countries outside europe are also implementing the standard, accounting for the advancement and authoritativeness of the standard.

The inspection well cover is usually made of reinforced cement, metal, reinforced plastic and other materials, and the shape of the inspection well cover mainly takes a round shape and a square shape. Inspection well cover noise is a common disturbing factor in daily life.

The following is a supplement to some of the known techniques and knowledge used in the present invention. Toughness, a physical concept, refers to the ability of a material to absorb energy during plastic deformation and rupture. The better the toughness, the less likely brittle fracture will occur. Toughness, which can be found in material science and metallurgy, refers to the resistance of a material to fracture when subjected to a force that deforms it, and is defined as the ratio of the energy that the material can absorb to the volume before fracture. The property of a material to absorb a large amount of energy to produce a certain deformation without breaking under the action of impact and shock load is called toughness or impact toughness. Construction steels (mild steel), wood, plastics, etc. are typical tough materials. The toughness of materials is considered for road surfaces, bridges, crane beams and structures with earthquake-resistant requirements. Rigid and brittle are generally connected. Brittleness refers to the property of a material that undergoes sudden failure without a precursor when the external force reaches a certain limit, and does not undergo significant plastic deformation when broken. The mechanical property of the brittle material is characterized in that the compressive strength is far greater than the tensile strength, and the ultimate strain value is extremely small when the brittle material is damaged. Bricks, stones, ceramics, glass, concrete, cast iron, etc. are brittle materials. They are considerably less advantageous to resist shock loads and to withstand shock effects than tough materials. As an engineering material, it is desirable to have both good toughness and stiffness. In improving the toughness of the material, it is also sought to increase the rigidity. Generally, the toughness is increased by adding an elastomer, and the rigidity is increased by adding an inorganic filler. The most effective method is to combine toughening of the elastomer and reinforcement of the filler. The ability of a material to resist failure under an external force is referred to as the strength of the material. When the material is acted by external force, the internal stress is generated, the external force is increased, the stress is correspondingly increased, and the material is damaged until the bonding force between the internal particles of the material is not enough to resist the acted external force. The limit reached by the stress at the time of failure of a material is called the ultimate strength of the material, often denoted by f. The unit of material strength is megapascals (MPa). Mechanically: the ability to resist deformation. Physically rigid means that the two clips do not deform upon impact. Rigidity: generally refers to the ability of a material to not deform under an external force. Of course, a material which is absolutely not deformed by an external force is an ideal rigid body and is not actually formed, but is slightly elastically deformed by a large external force, that is, a material with good rigidity. The material is deformed under the action of small external force, and the material is poor in rigidity.

Disclosure of Invention

The invention aims to provide a clip for reducing the noise of a manhole cover on the premise of not prying the manhole cover, which is derived from the practice of the inventor. Through research, inspection well cover noise mainly comes from three aspects: the sound of the inspection well cover impacting the well frame, the sound of the inspection well cover impacting the base and the sound of the vehicle impacting the inspection well cover and the well frame are achieved. The first two sounds are directly related to the looseness of the inspection well cover, and the latter is mainly related to the settlement of the inspection well cover (indirectly related to the looseness of the inspection well cover, and the settlement is aggravated due to the fact that the looseness causes the strength of the inspection well cover impacting the base and the well frame to be increased). The inventor instructs the property to put a plurality of sections of inner tubes of the electric bicycles to be clamped and pressed when putting a new well cover, and basically has no effect, and the later analysis reason is that the tire is thin and the coverage surface is too little, so the effect called by the network friend in the foregoing is not achieved. Meanwhile, the problem still exists, the inspection well cover of this time of changing is very heavy, alone can not prize at all, and big crowbar is also not can be got into everywhere. Therefore, the inventor tries to clamp the inspection well cover and the well frame by using a larger nail, the result is too small and the inspection well cover cannot be clamped, and then the inventor finds that the unnecessary waste screw rods and other parts are arranged in front of the electric bicycle store beside the inspection well cover and the well frame by accident, the screw rods and other parts seem to be obviously thicker than the space between the inspection well cover and the well frame, the person clamps the inspection well cover and the well frame by taking the trial mind, the result is knocked in by a hammer, the edges of the inspection well cover and the well frame are slightly damaged when the screw rods are just clamped in, the clamping is very tight, the condition of passing the automobile is observed, and no noise is generated basically. After a plurality of weeks, the noise begins to appear again, and the noise is loosened after careful inspection, because the gap is formed between the inspection well cover and the well frame in the whole circle, the gap at the clamped position is blocked and clamped by obviously reducing the gap at the other side, and along with rolling of a motor vehicle, the gap at the other side still exists, is transmitted to the clamped position, and damages to the edges of the inspection well cover and the well frame at the clamped position are added by extrusion, so that the clamp is not as tight as before, and the noise appears after the clamp becomes loose. The inner tube is made of rubber and can elastically deform in a certain range, the extrusion can be thinned, the extrusion is relieved, the original thickness is recovered, the clamping state is not changed all the time, and meanwhile, the damage of the hard screw to the edges of the inspection well cover and the inspection well frame made of composite materials can be buffered, and the clamping is not loosened up to now. The technical scheme is as follows:

the first scheme is as follows: the method is characterized in that a bolt type clamp clamped by respectively propping against an outer ring of the inspection well cover and an inner ring of the inspection well cover or propping against the outer ring of the inspection well cover and the inner ring of the inspection well frame through a liner to clamp the bolt type clamp is clamped between the outer ring of the inspection well cover and the inner ring of the inspection well frame or between the outer ring of the inspection well cover, the inner ring of the inspection well frame and the liner, so that the inspection well cover cannot or hardly cannot move relative to the inspection well frame;

scheme II: simultaneously/or the maximum thickness of the hard non-brittle material which is made of nodular cast iron material with the toughness of not less than two thirds and the strength of one half of the nodular cast iron material used for manufacturing the inspection well cover is smaller than the distance between the inspection well cover outer ring and the inspection well frame inner ring, and the two ends of the hard non-brittle material are mainly supported on a string which is basically tangent to the inspection well cover outer ring along the inspection well frame inner ring, and the two ends of the hard non-brittle material are respectively supported against the inspection well cover inner ring at the same time or supported against the inspection well frame inner ring through a liner and simultaneously supported against the inspection well frame outer ring in a tangent mode or supported against the inspection well cover outer ring through the liner to realize that the clamped inserted sheet type clamp is clamped between the inspection well cover outer ring and the inspection well frame inner ring or between the inspection well cover outer ring, the inspection well frame inner ring and the liner;

the third scheme is as follows: and simultaneously/or the inspection well cover can not or hardly move relative to the inspection well frame by clamping the three-dimensional clamp between the inspection well cover outer ring and the inspection well frame inner ring or between the inspection well cover outer ring, the inspection well frame inner ring and the gasket, wherein the three-dimensional clamp is clamped by at least three parts, which have the maximum width obviously smaller than the chord tangent to the inspection well cover outer ring on the inspection well frame inner ring or do not exceed the length of the edge of the inspection well cover outer ring and have the maximum thickness smaller than the distance between the inspection well cover outer ring and the inspection well frame inner ring and obviously deviate from any vertical plane, and the maximum thickness of the hard non-brittle material is obviously smaller than the distance between the inspection well cover outer ring and the inspection well frame inner ring.

The three schemes have blank spaces in the description words, which is convenient for sentence-breaking understanding so as to avoid misunderstanding or understandings. These three solutions have three common features. Firstly, the requirements on the materials are the same, the requirements are not lower than the hard non-brittle materials with two-thirds toughness and one-half strength of the nodular cast iron materials which can be used for manufacturing the inspection well cover, the soft materials are difficult to clamp, and the fragile materials cannot keep the original shape and are not clamped tightly if being crushed, generally not lower than the requirements. The second is the same in action mode, and is clamped between the outer ring of the inspection well cover and the inner ring of the well frame, so the inspection well cover and the well frame are collectively called a clip. Thirdly, the aim is the same, namely that the inspection well cover can not move or can hardly move relative to the well frame, including the transverse and longitudinal relative movement (which causes the impact of the inspection well cover with the well frame and the base respectively) can not be completely integrated, so that the inspection well cover and the base can not move relative to each other, but the fact that the relative movement is difficult to achieve is that the relative movement in the elastic deformation range of the clamp and other small relative movement which can not be detected by naked eyes can be said to be almost impossible to move; this further makes it clear that the cover cannot collide with the base or cannot collide with the base many times within 12 hours, because it is possible that a portion of the cover is suspended relative to the base during jamming, and if it is pressed down during crushing, there may be a single impact, and because of jamming, it is somewhat difficult to reset (which may result in a re-impact), but it is not excluded that a long-term crush may slow down, so it is pointed out that it cannot collide with the base many times within 12 hours. The different points mainly lie in the mode of blocking different, and the scheme is mainly supported around mainly to withstand simultaneously respectively, also can withstand the bolt type checkpost that inspection shaft lid outer lane and well frame inner circle blocked respectively simultaneously. The front and the back refer to the outer ring of the inspection well cover and the inner ring of the well frame; the pad can be used for buffering, and a non-hard material can be used for better clamping, the thickness or the width is increased, and the first scheme is to increase the thickness to realize better clamping in the front and the back. For the first front and rear clamping variant, there are specific requirements for the shape of the clip: the maximum width does not exceed the length of a string on the inner ring of the manhole frame tangent to the outer ring of the manhole cover (in the case of a circular manhole cover) or the length of a side of the outer ring of the manhole cover (in the case of a square manhole cover), which looks somewhat similar to a bolt, and is named as a bolt-type clip. The clips are clamped between the inspection well cover outer ring and the well frame inner ring, and when the lining is arranged, the well frame inner ring on one side of the inspection well cover outer ring and the lining can be refined, and the like, wherein the conditions are collectively called between the inspection well cover outer ring, the well frame inner ring and the lining. The second scheme is not clamped in front and back, so that the maximum thickness is required to be smaller than the distance between the outer ring of the inspection well cover and the inner ring of the well frame, the scheme is mainly based on that the string basically tangential to the outer ring of the inspection well cover along the inner ring of the well frame and the two ends of the string respectively abut against the inner ring of the well frame or abut against the outer ring of the inspection well cover through the gasket, and the two ends of the string abut against the inner ring of the well frame or abut against the inner ring of the well frame through the gasket and abut against the outer ring of the inspection well cover in a tangential mode or abut against the outer ring of the inspection well cover through the gasket, if the top is very tight and the inserting piece type clamp has certain deformation capacity, the deformation and bending can occur, so that the situation deviates from the theoretical tangent line, but the situation is also brought into the situation through the basic two characters. The third scheme is different from the first two schemes in that the third scheme is neither front-back nor left-right clamping but is a three-dimensional clamping, so that at least three positions are required to be propped against the third scheme, and the third scheme is different from the first two schemes in that the third scheme is obviously not on the same vertical plane (in the case of deformation and bending of the second scheme, the third scheme also can not be on the same vertical plane but has small deviation, so that the third scheme is obviously not on the same vertical plane).

The inspection well cover noise reduction method under the premise of not prying up the inspection well cover can be further refined and improved, and the specific refinement and improvement is as follows, wherein one or possible combination of the following can be selected optionally:

1. at least two or at least three clips of the same type or different types are clamped simultaneously or the clips are further clarified to be uniformly/symmetrically distributed or nearly uniformly/symmetrically distributed in an annular gap between the outer ring of the inspection well cover and the inner ring of the well frame, generally, the clips are clamped by one position and the gap at the annular symmetrical position is also disappeared with some difficulty, so the symmetrical clamping solves the problem and is preferably arranged along the driving direction of the motor vehicle;

2. simultaneously, two or more cards of the same kind or different kinds are clamped in the same position, the screw rod of the card of the first time is loosened, a sheet-shaped clip can be inserted in a superposition mode, and the outer insert-type clip and the plug-type clip can be used in a superposition mode generally, especially under the condition that the thickness of the plug-type clip is insufficient;

3. the thickness of the lower end of the clip is smaller than the distance between the outer ring of the inspection well cover and the inner ring of the well frame or not more than 1.25 times of the distance between the outer ring of the inspection well cover and the inner ring of the well frame, the thickness of the lower end of the clip is smaller than the thickness of the lower end of the clip, the edge of the inspection well cover and the like cannot be damaged, but the clip can be used if the thickness of the lower end of the clip is slightly larger, and the gap is annular;

4. the thickness and/or the width of the lower end of the clip is smaller than that of the adjacent part or all parts on the upper end of the clip;

5. the lower end of the clip is in a sharp or flat drill rod shape or a spherical crown shape;

6. the thickness of the lower end of the clamp is not more than 5/4/3/2 mm, and can be selected according to the actual measurement distance;

7. the maximum thickness of the clip does not exceed 50/40/30/20 mm, and the clip can be determined according to actual conditions for clamping;

9. the height of the clip does not exceed the thickness of the inspection well cover or does not exceed 1.5 times of the thickness of the inspection well cover at most or is not shorter than half of the thickness of the inspection well cover at least, and the clip can be raised and inclined when exceeding the possible height;

10. the height of the clip is not more than 100/90/80/70/60/50/40/30 mm, and can be determined according to the specific thickness of the inspection well cover;

11. the whole or part of the clip is coated by a gasket or the whole or part of the rest part except the lower end is coated by the gasket or the clip is integrated with the clip on the basis of the front;

12. the liner is made of steel, wood, oiled cloth, oiled felt, an inner tube material, an outer cover material, pearl wool, a palm cushion or polytetrafluoroethylene material, wherein the hard material such as steel is mainly used for increasing the thickness or the width, and the soft material such as the oiled cloth, the oiled felt, the inner tube material, the outer cover material, the pearl wool, the palm cushion and the like can also play a role in buffering extrusion or collision and adjusting the thickness through elastic deformation;

13. the upper end of the clip is of a structure similar to a nail/screw head or further definitely, the upper surface of the upper end is a plane or the upper end is of a spherical crown shape or the upper end is of a hexagonal column shape, and the structure with the head can facilitate operations such as striking, rotating and the like;

14. holes are formed in the clips and/or notches are formed in the outer edges of the clips, so that materials can be saved;

15. the hard non-brittle material with the toughness of not less than two thirds and the strength of one half of the ductile cast iron material used for manufacturing the inspection well cover is ductile cast iron, aluminum alloy, titanium alloy, copper material, bakelite, engineering plastic, fiber reinforced plastic, Q195 steel, Q235 steel, 65Mn steel, 70Mn steel, 85Mn steel, 55Si2Mn steel, 60Si2Mn steel or 60Si2MnA steel, and the latter steel is spring steel, so that the hard non-brittle material can be made into a certain shape and has better elasticity;

16. the maximum thickness of the pin-type clamp or the thickness of all parts except the lower end or the thickness of at least two thirds of the parts except the lower end is larger than the distance between the outer ring of the inspection well cover and the inner ring of the well frame, and the pin-type clamp can be determined according to the actual condition for clamping;

17. the maximum thickness of the pin type clamp does not exceed 2.5 times of the gap between the outer ring of the inspection well cover and the inner ring of the well frame, and the pin type clamp can be clamped tightly according to the actual situation, but cannot be clamped too thick;

18. the maximum thickness of the pin-type clamp does not exceed 15/12/9/6 mm, and the pin-type clamp can be determined according to actual conditions for clamping;

19. the pin-type clip is made of screw-thread steel/reinforcing steel bar/round steel/steel pipe/flat steel/flat iron cutting section or the lower end is made into sharp/flat-processing by beveling, or is made of flat steel/flat iron cutting section and is also bent up and down into V-shape with one side short/bent up and down into V-shape with one side short and the V-shape sandwiches rubber pad/bent up and down into V-shape with one side short and the V-shape sandwiches spring/bent up and down into U-shape with one side short and the U-shape sandwiches rubber pad/bent up and down into U-shape with one side short and the U-shape, or is made of screw-thread steel/reinforcing steel bar/steel pipe/flat steel/flat iron cutting section and at least one of them is twisted back and forth into arc/broken line shape/S-shape, the latter two types can make the inspection well cover outer ring and the inspection well frame inner ring have certain elasticity and can self-adapt to the change of the gap caused by stress, and the last type can also clamp a wider gap under the condition of insufficient thickness of raw materials;

20. the maximum width of the insert type clamp or the width of all parts except the lower end or the width of the rest parts except the lower end, which are at least two thirds, is larger than the length of a string tangent with the outer ring of the inspection well cover on the inner ring of the well frame for clamping;

21. the maximum width of the inserting type clamp is larger than the length of a string tangent to the outer ring of the inspection well cover on the inner ring of the well frame or the maximum width of the inserting type clamp is not more than 1.5 times of the length of a string tangent to the outer ring of the inspection well cover on the inner ring of the well frame, and the inserting type clamp can be determined according to actual conditions for clamping;

22. the maximum width of the plug-type clamp does not exceed 150/120/90/60 mm, and the maximum width can be determined according to actual conditions for clamping;

23. the inserting piece type clamp is made by cutting a straight flat steel/flat iron into an inverted triangle/trapezoid with small lower part and large upper part/circle/circular segment/ellipse segment, or made by a deformed steel bar/round steel pipe and twisted into a circular ring/elliptical ring shape and clamped through the widest part;

24. the three-dimensional clip is made of angle steel/aluminum profile/plastic steel profile cut sections or has a conical shape with the lower end obliquely cut, for example, the top angle of the angle steel is used for propping against the outer ring of the inspection well cover, two edges of the angle steel are propped against the inner ring of the well frame to form a stable support (propping), or the three-dimensional clip is made of deformed steel bar/round steel/steel tube cut sections and is twisted/bent to form at least two sections of staggered arcs/broken lines, the process is slightly complex, and larger space can be clamped under the condition that the thickness and the width of raw materials are insufficient;

25. the clamp is formed by striking a blunt instrument from top to bottom and clamping the blunt instrument between the outer ring of the inspection well cover and the inner ring of the well frame or further determining that the blunt instrument is a hammer or a hammer, and can be vertically downward or slightly inclined;

26. the front view of the clip is a V-shaped with one short side, a U-shaped with one short side, a rectangle with the height larger than the width, a trapezoid with a small lower part and a large upper part, a circle, a ring, an ellipse with a vertical long axis, a rhombus with a vertical long diagonal, an acute triangle or an inverted acute triangle, or a trapezoid with a sharp lower triangle or a short side at the lower end, and the rest of the trapezoid is a rectangle or a trapezoid close to the rectangle except the lower end and is coincided with the lower end and the upper edge of the trapezoid or is a shape containing a section of arc, S-shaped and/or broken line and the rest of the trapezoid is a rectangle;

27. the side view of the clip is a V-shaped with one short side, a U-shaped with one short side, a rectangle with the height larger than the width, a trapezoid with a small lower part and a big upper part, a circle, a ring, an ellipse with a vertical long axis, an ellipse ring with a vertical long axis, a rhombus with a vertical long diagonal, an acute angle triangle or an inverted acute angle triangle ring, or a trapezoid with a sharp downward triangle or a short side at the lower end, and the rest is a rectangle or a trapezoid with a nearly rectangle except the lower end and is coincided with the upper edge of the lower edge of the trapezoid or a shape containing a section of arc, S-shaped and/or broken line and the rest is a rectangle;

28. the plan view of the clip is a regular polygon, a circle, a flat rectangle, a flat trapezoid, a flat diamond, a flat triangle with an obtuse angle not less than 120 degrees, a small piece cut out from the circle or a small section of the ring.

The inspection well cover noise reduction method on the premise of not prying up the inspection well cover is used for reducing the damage speed of the inspection well cover, the damage speed of a well frame, the damage speed of roads around the inspection well, the sedimentation speed of the inspection well cover and/or the sedimentation speed of the roads around the inspection well, and the impact strength is reduced through clamping, so that the damage speed of the inspection well cover, the damage speed of the well frame, the damage speed of the roads around the inspection well, the sedimentation speed of the inspection well cover and/or the sedimentation speed of the roads around the inspection well can be reduced inevitably.

According to the invention and creation of the clip for reducing the noise of the inspection well cover on the premise of not prying up the inspection well cover, the noise reduction method of the inspection well cover on the premise of not prying up the inspection well cover can be used for extracting the clip for reducing the noise of the inspection well cover, and the technical scheme (for the specific explanation, the corresponding explanation is referred to in the foregoing):

the bolt type clamp is made of hard non-fragile materials with the toughness of two thirds and the strength of one half of ductile cast iron materials which can be used for manufacturing the inspection well cover, the maximum width of the bolt type clamp does not exceed a chord tangent with the outer ring of the inspection well cover on the inner ring of the inspection well frame or does not exceed a half of the length of a side of the outer ring of the inspection well cover, and the bolt type clamp is mainly supported by a front part and a rear part and simultaneously props against the outer ring of the inspection well cover and the inner ring of the inspection well frame through a gasket to clamp the inspection well cover and the inner ring of the inspection well frame through gaskets;

or the hard non-brittle material with the maximum thickness smaller than the distance between the outer ring of the inspection well cover and the inner ring of the inspection well frame, which is made of the ductile cast iron material with the toughness of not less than two thirds and the strength of one half, is mainly supported on a chord which is basically tangential to the outer ring of the inspection well cover along the inner ring of the inspection well frame, and the two ends of the clip respectively support the inner ring of the inspection well frame through a gasket and support the outer ring of the inspection well cover through a tangential mode or support the outer ring of the inspection well cover through the gasket to realize the clamping;

or the solid clip is made of hard non-brittle materials with the toughness of not less than two thirds and the strength of half of nodular cast iron materials which can be used for manufacturing the inspection well cover, the maximum width of the hard non-brittle materials is obviously smaller than the chord tangent with the outer ring of the inspection well cover on the inner ring of the inspection well frame or not more than the length of the edge of the outer ring of the inspection well cover, and the maximum thickness of the hard non-brittle materials is smaller than at least three positions which are obviously deviated from the interval between the outer ring of the inspection well cover and the inner ring of the inspection well frame and are respectively propped against the outer ring of the inspection well cover and the inner ring of the inspection well frame through gaskets, so that the three positions are clamped.

The above clip for reducing the noise of the manhole cover without prying up the manhole cover can further refine the technical features, and the measures are as follows, and one or any possible combination can be selected (see the corresponding description in the specification):

1. the thickness of the lower end of the clip is smaller than or not more than 1.25 times of the distance between the outer ring of the inspection well cover and the inner ring of the well frame;

2. the thickness and/or the width of the lower end of the clip is smaller than that of the adjacent part or all parts on the upper end of the clip;

3. the clip is in a drill rod shape with a pointed or flat lower end (the drill rod-shaped plug pin type clip with the pointed or flat lower end can be called a noise reduction drill rod, and the other can be called noise reduction pins) or in a spherical crown shape;

4. the thickness of the lower end of the clip is not more than 5/4/3/2 mm;

5. the maximum thickness of the clip is not more than 50/40/30/20 mm;

6. the height of the clip does not exceed the thickness of the inspection well cover or maximally does not exceed 1.5 times of the thickness of the inspection well cover or is shortest not shorter than half of the thickness of the inspection well cover;

7. the height of the clip is not more than 100/90/80/70/60/50/40/30 mm;

8. the whole or part of the clip is coated by a gasket or the whole or part of the rest part except the lower end is coated by the gasket or the clip is integrated with the clip on the basis of the front;

9. the liner is made of steel, wood, oilcloth, felt, an inner tube, an outer cover, pearl wool, a palm cushion or polytetrafluoroethylene;

10. the upper end of the clip is of a structure similar to a nail/screw head or further definitely, the upper surface of the upper end is a plane or the upper end is of a spherical crown shape or the upper end is of a hexagonal column shape;

11. holes are formed in the clips and/or notches are formed in the outer edges of the clips;

12. the hard non-brittle material with the toughness of not less than two thirds and the strength of one half of the ductile cast iron material used for manufacturing the inspection well cover is ductile cast iron, aluminum alloy, titanium alloy, copper material, bakelite, engineering plastic, fiber reinforced plastic, Q195 steel, Q235 steel, 65Mn steel, 70Mn steel, 85Mn steel, 55Si2Mn steel, 60Si2Mn steel or 60Si2MnA steel;

13. the maximum thickness of the pin-type clamp or the thickness of all parts except the lower end or the thickness of at least two thirds of the parts except the lower end is larger than the distance between the outer ring of the inspection well cover and the inner ring of the well frame;

14. the maximum thickness of the pin-type clamp is not more than 2.5 times of the gap between the outer ring of the inspection well cover and the inner ring of the well frame;

15. the maximum thickness of the pin-type clip is not more than 15/12/9/6 mm;

16. the pin-type clamp is made of deformed steel bar/round steel pipe/flat steel/flat iron or the lower end of the pin-type clamp is pointed/flat, or the pin-type clamp is made of flat steel/flat iron and has a V-shaped structure with one short side, a V-shaped structure with one short side and a rubber pad sandwiched between the V-shaped structures, a U-shaped structure with one short side and a rubber pad sandwiched between the U-shaped structures, or the pin-type clamp is made of deformed steel bar/round steel bar/steel pipe/flat steel/flat iron and has at least one section which is arc-shaped or zigzag-shaped or S-shaped;

17. the maximum width of the insert type clip or the width of all parts except the lower end or the width of the rest parts except the lower end, which are at least two thirds, is larger than the length of a chord tangent with the outer ring of the inspection well cover on the inner ring of the well frame;

18. the maximum width of the inserting type clamp is larger than the length of a string tangent to the outer ring of the inspection well cover on the inner ring of the well frame or the maximum width of the inserting type clamp is not more than 1.5 times the length of a string tangent to the outer ring of the inspection well cover on the inner ring of the well frame;

19. the maximum width of the plug-type clip does not exceed 150/120/90/60 mm;

20. the insert type clamp is made by cutting a straight flat steel/flat iron into an inverted triangle/trapezoid with small lower part and large upper part/circle/circular segment/ellipse/elliptical segment, or is made into a circular ring/elliptical ring shape by using deformed steel bar/round steel pipe;

21. the three-dimensional clip is made of angle steel/aluminum profile/plastic steel profile sections or tapered at the lower end, or made of deformed steel bar/round steel/steel pipe and comprises at least two sections of staggered arc/broken lines;

22. the front view of the clip is a V-shaped with one short side, a U-shaped with one short side, a rectangle with the height larger than the width, a trapezoid with a small lower part and a large upper part, a circle, a ring, an ellipse with a vertical long axis, a rhombus with a vertical long diagonal, an acute triangle or an inverted acute triangle, or a trapezoid with a sharp lower triangle or a short side at the lower end, and the rest of the trapezoid is a rectangle or a trapezoid close to the rectangle except the lower end and is coincided with the lower end and the upper edge of the trapezoid or is a shape containing a section of arc, S-shaped and/or broken line and the rest of the trapezoid is a rectangle;

23. the side view of the clip is a V-shaped with one short side, a U-shaped with one short side, a rectangle with the height larger than the width, a trapezoid with a small lower part and a big upper part, a circle, a ring, an ellipse with a vertical long axis, an ellipse ring with a vertical long axis, a rhombus with a vertical long diagonal, an acute angle triangle or an inverted acute angle triangle ring, or a trapezoid with a sharp downward triangle or a short side at the lower end, and the rest is a rectangle or a trapezoid with a nearly rectangle except the lower end and is coincided with the upper edge of the lower edge of the trapezoid or a shape containing a section of arc, S-shaped and/or broken line and the rest is a rectangle;

24 the plan view of the clip is a regular polygon, a circle, a flat rectangle, a flat trapezoid, a flat diamond, a flat triangle with an obtuse angle not less than 120 degrees, a small block cut out from the circle or a small section of a circular ring.

The invention provides a method for reducing noise by clamping clips made of hard and non-fragile materials, particularly three types of plug pin type clips, insertion type clips and three-dimensional type clips, between an outer ring of an inspection well cover and an inner ring of a well frame, so that the inspection well cover can not or almost can not move relative to the well frame. The method is simple and practical, can be realized without great strength and larger tools, and can also be used for solving the problems of damage and settlement of the inspection well and surrounding roads and the like. Meanwhile, the invention provides three types of clips, namely a latch type clip, an insert type clip, a three-dimensional type clip and the like, which can be very conveniently used for solving the problem of inspection well cover noise in daily life.

Drawings

Fig. 1 is a side view of a noise reduction clip made of deformed steel: 1, a rubber sleeve 2 and a deformed steel bar 3;

FIG. 2 is a side view of a short-sided V-shaped noise reduction clip made of flat steel;

FIG. 3 is a side view of an arcuate noise reduction clip formed from reinforcing steel;

FIG. 4 is a front view of a circular insert type clip made of flat steel;

fig. 5 is a three-dimensional clip made of angle steel: the lower end of the top angle 3 of the angle steel 2 of the edge steel 1.

Detailed Description

According to the above-mentioned technical scheme who falls the checkpost of inspection shaft lid noise under the prerequisite of not prizing the inspection shaft lid, can combine the material on the market to process the checkpost of preparation needs and be used for falling the making an uproar of inspection shaft lid nearby:

example 1: a 100, 90, 80, 70, 60, 50, 40 or 30mm long straight or substantially straight gauge of 5.5, 6, 6.5, 7, 8, 9, 10, 11, 12, 13, 14 or 15 mm thread steel of Q195, Q215, Q235, Q345 or SS400, or a rubber sleeve having a beveled lower end on a frontal basis and/or surrounding the lower end. The screw-thread steel with corresponding specification is cut into corresponding length, and the simplest bolt type clamp can be made. If the noise reduction drill rod is made into a drill rod shape with a pointed or flat lower end, the noise reduction drill rod can be cut into sections according to the length twice, each section is obliquely cut from any diameter of the middle cross section, and thus, each section is made into two noise reduction clips (see figure 1), and rubber sleeves (made of inner tube materials can be adopted) can be partially arranged at the parts except the lower end.

Example 2: two straight or substantially straight ends of total length 110, 100, 90, 80, 70 or 60 mm long comprise a length of 5.5, 6, 6.5 or 7 mm deformed steel bar with an arc height of 3 to 5 mm, or have a bevel at its lower end on the basis of the front face and/or are covered with a rubber sleeve except for the lower end. The thread steel with corresponding specification is cut into corresponding length, and compared with the embodiment 1, the diameter of the thread steel is selected to be thinner, and then the thread steel is bent into an arc shape in the middle (see figure 3). The bent deformed steel bar or steel bar has certain elastic deformation capacity (steel materials with similar shapes and made of spring steel materials can be adopted at the moment), can deform in a self-adaptive mode when being extruded, and can adapt to gaps between the outer ring of the inspection well cover and the inner ring of the inspection well frame at different intervals.

Example 3: the specification of 100, 90, 80, 70, 60, 50, 40 or 30mm long straight or basically straight is flat steel with the width of 50 to 100 mm, the thickness of 1.5 to 8 mm and the material of Q195, Q215, Q235, Q345 or SS400, or the width of the lower end of the flat steel is narrower than that of the flat steel on the basis of the front surface and/or a rubber sleeve is coated outside the lower end; after the flat steel is cut into rectangles (the front view is the rectangle with the width larger than the height), the flat steel is an insert type clamp, and a circular ring (shown in figure 4) can be directly punched by a punch, so that the material is saved.

Example 4: the flat steel with the length of 150 mm, 120 mm or 90 mm is straight or basically straight, the width of the flat steel is 50mm, the thickness of the flat steel is between 1.5 mm and 3 mm, the flat steel is made of Q195, Q215, Q235, Q345 or SS400, the flat steel is bent at one third of the length of the flat steel to form an included angle of between 30 and 45 degrees, or the width of the lower end of the flat steel is narrower than that of the flat steel on the basis of the front surface, and/or a rubber sleeve is coated outside the lower end of the flat steel. The noise reduction drill rod is made of thin flat steel, and can realize self-adaptive deformation when being extruded and adapt to gaps between the outer ring of the inspection well cover and the inner ring of the well frame at different intervals by utilizing the elastic deformation capacity of the bent noise reduction drill rod (the flat steel made of spring steel can be adopted at the moment) after the flat steel is cut into a rectangle (the main view of the noise reduction drill rod is the rectangle with the height larger than the width), and then the noise reduction drill rod is bent to form an included angle of 30-45 degrees (see figure 2).

Example 5: the steel plate is a flat steel bent into an arc with the arch height of between 3 and 5 millimeters, the width of the arc is between 60 and 100 millimeters, the thickness of the arc is between 1.5 and 6 millimeters, and the arc is 110, 100, 90, 80, 70 or 60 millimeters long in total length, and the flat steel is made of Q195, Q215, Q235, Q345 or SS400, or the flat steel is provided with a bevel at the lower end on the basis of the front face and/or is coated with a rubber sleeve except the lower end. The flat steel is cut into rectangles (the front view is a rectangle with a width larger than the height), and then the rectangles are bent into arcs to form the three-dimensional clip, and the width of the cut can be reduced.

Example 6: the length of the steel is 100, 90, 80, 70, 60, 50, 40 or 30mm, the straight or basically straight specification is 20mm on a side, 3 or 4 mm in thickness, and the steel is made of Q195, Q215, Q235, Q345 or SS400, or the lower end of the steel is provided with an inclined surface on the front basis and/or a rubber sleeve is coated outside the lower end. Because the gap distance between the outer ring of the inspection well cover and the inner ring of the well frame does not exceed 10 mm generally, angle steel with the side length of 20mm is selected, and after the angle steel is cut according to the length, one end of the angle steel can be obliquely cut into a cone (provided with an inclined plane, the middle of the angle steel is hollow) to be used as the lower end, so that the angle steel is convenient to clamp.

Claims (1)

1. The utility model provides a do not prize the checkpost of inspection shaft lid noise that falls in the prerequisite of inspection shaft lid which characterized in that:

a 100, 90, 80, 70, 60, 50, 40 or 30mm long straight or substantially straight gauge of 5.5, 6, 6.5, 7, 8, 9, 10, 11, 12, 13, 14 or 15 mm, a threaded steel of Q195, Q215, Q235, Q345 or SS400, or a rubber sleeve having a bevel on the lower end thereof on a frontal basis and/or being wrapped around the lower end;

or two straight or substantially straight sections of 5.5, 6, 6.5 or 7 mm gauge steel or rebar having an arch of between 3 and 5 mm comprising an arc of overall length 110, 100, 90, 80, 70 or 60 mm long, or having a chamfer at its lower end on a frontal basis and/or being covered with a rubber sleeve except for its lower end;

or the flat steel which is 150, 120 or 90 mm long and straight or basically straight has the specification of 50mm width, 1.5 to 3 mm thickness and is made of Q195, Q215, Q235, Q345 or SS400 is bent at one third of the length to form an included angle of 30 to 45 degrees, or the width of the lower end of the flat steel is narrower than that of the flat steel on the basis of the front surface and/or a rubber sleeve is coated outside the lower end of the flat steel;

or 100, 90, 80, 70, 60, 50, 40 or 30mm long or substantially straight, is a flat steel with a width of between 50 and 100 mm, a thickness of between 1.5 and 8 mm, and a material of Q195, Q215, Q235, Q345 or SS400, or is covered with a rubber sleeve on the basis of the front with a lower end narrower than the upper end and/or except the lower end;

or a flat steel bent into an arc with an arch height of between 3 and 5 millimeters, with an overall length of 110, 100, 90, 80, 70 or 60 millimeters, with a width of between 60 and 100 millimeters, a thickness of between 1.5 and 6 millimeters, and a material of Q195, Q215, Q235, Q345 or SS400, or a rubber sleeve with a bevel at the lower end on the basis of the front face and/or the rubber sleeve outside the lower end;

or the length of 100, 90, 80, 70, 60, 50, 40 or 30mm is the straight or basically straight specification with the side length of 20mm, the thickness of 3 or 4 mm and the material of Q195, Q215, Q235, Q345 or SS400, or the lower end of the front base is provided with an inclined plane and/or the rubber sleeve is coated outside the lower end.

Images