CN210068916U - Manhole structure with pressure sight glass - Google Patents

Abstract

The utility model relates to a manhole design technical field specifically is a manhole structure with pressure-sensitive mirror, include the manhole lower flange that links to each other with external container, integrated into one piece has first articulated ear on the manhole lower flange, install the pendulum rod through covering the fixed pin is articulated on the first articulated ear, and the pendulum rod include with cover fixed pin articulated cooperation seat, integrated into one piece has the member on the articulated cooperation seat. The beneficial effects are that: the device replaces traditional hinge system bolt through die-casting fashioned special lid fixed pin and can provide longer life and adopt the axle to replace the dismantlement and the installation of the convenient pendulum rod that the nut also can be great with the jump ring, the device can also open the position after through the fixed manhole cover that sets up spacing protruding good on the pendulum rod, thereby it is safer to make the use, the device still provides the inside pressure mirror device of convenient observation container, not only inside can effectual observation container, can also clear up fast and shelter from the thing and provide good observation effect.

Description

Manhole structure with pressure sight glass

Technical Field

The utility model relates to a manhole design technical field specifically is a manhole structure with pressure-sensitive mirror.

Background

The manhole is a perforated structure which is arranged above the equipment and is convenient for maintenance personnel to go in and out for installation and detection. The manhole generally comprises flange spare, pendulum rod and manhole cover triplex, among the current manhole structure, mainly adopt the hinge bolt as the articulated shaft between flange spare and the pendulum rod, because the length of hinge bolt is difficult to the width of good matching pendulum rod, consequently articulated department can produce not hard up, thereby noise is very big when causing the switch, still can cause the local wear aggravation because the matching precision of size is low, thereby cause life to reduce, and the terminal nut that also needs of hinge bolt fastens, the nut is not only installed and is dismantled inconveniently, also drop when using easily, and the pendulum rod also because lack location structure, lead to the manhole cover to collide other positions after opening easily, the potential safety hazard has been brought. The existing manhole is lack of a sight glass structure which is reasonable in structure and can resist high pressure, and external operators are difficult to judge the condition inside the container.

If the novel manhole structure is long in service life and low in noise, the position of the manhole cover can be effectively fixed, and the condition in the container can be conveniently observed, the problems can be effectively solved, and the manhole structure with the pressure sight glass is provided for people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manhole structure with pressure-sensitive mirror to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a manhole structure with a pressure sight glass comprises a manhole lower flange connected with an external container, wherein a first hinge lug is integrally formed on the manhole lower flange, a swing rod is hinged to the first hinge lug through a cover fixing pin and comprises a hinge matching seat hinged to the cover fixing pin, a rod piece is integrally formed on the hinge matching seat, a limiting bulge used for resisting the outer wall surface of the manhole lower flange is fixedly installed at the bottom of the hinge matching seat, a manhole cover is fixedly installed at the tail end of the rod piece through a bolt, and a clamp spring for a first shaft is installed at the tail end of the cover fixing pin in a clamping mode;

an upper sight glass flange is arranged on the manhole cover through an inner hexagon bolt, a pressure sight glass device is tightly clamped between the upper sight glass flange and the manhole cover through a polytetrafluoroethylene glass gasket and comprises toughened glass tightly attached to the polytetrafluoroethylene glass gasket, and the toughened glass is hinged with a main pin, the main pin is sequentially connected with a first sleeve and a second sleeve in series from top to bottom, a polytetrafluoroethylene gasket is arranged between the lower end of the second sleeve and the upper end of the toughened glass, a third sleeve fixed with the second sleeve is arranged at the bottom of the toughened glass through an outer hexagon bolt, and a polytetrafluoroethylene gasket is arranged between the upper end of the third sleeve and the lower end of the toughened glass, a toggle handle is arranged at the upper end of the first sleeve through screw thread connection, a fixing piece is arranged on the third sleeve through a screw, and a polytetrafluoroethylene scraping sheet attached to the toughened glass is arranged on the fixing piece through a screw;

the outside integrated into one piece of flange has the articulated ear of at least two pairs of second that is the circumference array setting under the manhole, and articulates through lock solid fixed pin on the articulated ear of second and install the screw rod, the jump ring for the secondary shaft is installed to the terminal chucking of lock solid fixed pin, and the terminal spiro union of screw rod installs the plum blossom handle, the screw rod cup joints in the below department that corresponds the plum blossom handle and installs the pressure sign indicating number, and through spring fixed mounting between the bottom of the lower extreme of pressure sign indicating number and screw rod, set up the draw-in groove with the edge chucking of manhole cover on the pressure sign indicating number, and the manhole covers the welding and installs the lid handle.

Preferably, the bottom of the manhole cover is tightly clamped with a sealing ring matched with a lower manhole flange.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a manhole replaces traditional hinge system bolt through die-casting fashioned special lid fixed pin and can provide longer life and adopt the axle to replace the dismantlement and the installation of the convenient pendulum rod that the nut also can be great with the jump ring, the device can also open the position after through the fixed manhole cover that sets up spacing protruding good on the pendulum rod, thereby it is safer to make the use, the device still provides the inside pressure-sensitive mirror device of convenient observation container, not only can effectually observe inside the container, can also clear up fast and shelter from the thing and provide good observation effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in an open state;

FIG. 3 is an exploded view of the structure of the present invention;

fig. 4 is an exploded view of the pressure viewing mirror device of the present invention;

fig. 5 is a schematic structural diagram of the swing rod of the present invention.

In the figure: 1, a hexagon socket head cap screw; 2, viewing mirror upper flange; 3 a polytetrafluoroethylene glass gasket; 4 pressure sight glass device; 401 a kingpin; 402 dialing a handle; 403 a first sleeve; 404 a second sleeve; 405 polytetrafluoroethylene spacers; 406 tempered glass; 407 polytetrafluoroethylene wiper blade; 408 a fixing piece; 409 a third sleeve; 410 outer hexagon bolts; 5, a manhole cover; 6, oscillating bars; 601 a rod member; 602 hinged to a mating seat; 603 limiting bulges; 7, sealing rings; 8 a plum blossom handle; 9, pressing codes; 10 springs; 11, a screw rod; 12 a clamp spring for the first shaft; 13 cover fixing pins; 14 manhole lower flange; 15 circlip for second shaft; 16 a second hinge ear; 17 locking the fixing pin; 18 cap handle, 19 first hinge ear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the technical scheme in the utility model, all other embodiments that ordinary skilled person in the art obtained under the prerequisite of not making the creative work all belong to the scope of the utility model protection.

Referring to fig. 1 to 5, the present invention provides a technical solution: a manhole structure with a pressure viewing mirror comprises a manhole lower flange 14 connected with an external container, wherein a first hinge lug 19 is integrally formed on the manhole lower flange 14, a swing rod 6 is hinged to the first hinge lug 19 through a cover fixing pin 13, the swing rod 6 comprises a hinge matching seat 602 hinged to the cover fixing pin 13, a rod 601 is integrally formed on the hinge matching seat 602, a limiting bulge 603 used for abutting against the outer wall surface of the manhole lower flange 14 is fixedly installed at the bottom of the hinge matching seat 602, a manhole cover 5 is fixedly installed at the tail end of the rod 601 through a bolt, and a clamp spring 12 for a first shaft is installed at the tail end of the cover fixing pin 13 in a clamping mode;

a sight glass upper flange 2 is mounted on a manhole cover 5 through an inner hexagon bolt 1, a pressure sight glass device 4 is clamped between the sight glass upper flange 2 and the manhole cover 5 through a polytetrafluoroethylene glass gasket 3, the pressure sight glass device 4 comprises a toughened glass 406 which is attached and clamped with the polytetrafluoroethylene glass gasket 3, a kingpin 401 is hinged on the toughened glass 406, a first sleeve 403 and a second sleeve 404 are sequentially and fixedly mounted on the kingpin 401 in series from top to bottom, a polytetrafluoroethylene gasket 405 is mounted between the lower end of the second sleeve 404 and the upper end of the toughened glass 406, a third sleeve 409 which is fixed with the second sleeve 404 is mounted at the bottom of the toughened glass 406 through an outer hexagon bolt 410, the polytetrafluoroethylene gasket 405 is mounted between the upper end of the third sleeve 409 and the lower end of the toughened glass 406, a toggle handle 402 is mounted at the upper end of the first sleeve 403 through a thread in a screwed manner, and a fixing plate 408 is mounted on the third sleeve 409 through a screw, a polytetrafluoroethylene wiper 407 attached to the toughened glass 406 is mounted on the fixing piece 408 through a screw;

at least two pairs of second hinge lugs 20 arranged in a circumferential array are integrally formed on the outer side of the manhole lower flange 14, a screw rod 11 is hinged to each second hinge lug 20 through a lock fixing pin 17, a clamp spring 15 for a second shaft is tightly clamped at the tail end of the lock fixing pin 17, a plum blossom-shaped handle 8 is screwed at the tail end of the screw rod 11, a pressure code 9 is sleeved and mounted on the screw rod 11 below the corresponding plum blossom-shaped handle 8, the lower end of the pressure code 9 and the bottom of the screw rod 11 are fixedly mounted through a spring 10, a clamping groove tightly clamped with the edge of the manhole cover 5 is formed in the pressure code 9, a cover handle 18 is welded and mounted on the manhole cover 5, and a sealing ring 7 matched with the manhole lower flange 14 is tightly clamped and mounted at the bottom of the.

The working principle is as follows: the device mainly adopts pendulum rod 6 to articulate and connects manhole cover 5 and manhole lower flange 14, and simultaneously the bottom of pendulum rod 6 still integrated into one piece have one with the lower flange 14 complex of manhole spacing protruding 603, after manhole cover 5 was opened, manhole cover 5 will be can rotate to the position department that is 120 jiaos with manhole lower flange 14, manhole lower flange 14 just can support tightly with spacing protruding 603 this moment to realize limit function, avoided manhole cover 5 and other positions to collide. And the articulated between the swing stem 6 of the device and the manhole lower flange 14 adopts the lid fixed pin 13 of direct die-casting shaping as the pivot, the lid fixed pin 13 that adopts direct die-casting replaces current hinge bolt and can have better durability and fastness as the pivot, and the size cooperation is more accurate, can effectual noise reduction, and the end of lid fixed pin 13 adopts the snap spring 12 for the primary shaft to fix, for the bolt is more easy to assemble and dismantlement, when needs close manhole cover 6, only need be closed manhole cover 6 and manhole lower flange 14, will press sign indicating number 9 autogiration afterwards to the position department with manhole cover 5 chucking, it can with the complete chucking of manhole cover 5 to make pressure sign indicating number 9 through rotatory plum blossom handle 8. Still be provided with pressure mirror device 4 on the manhole cover 5 of the device, can effectually utilize pressure mirror device 4 to observe the inside operating condition of container, pressure mirror device 4 adopts toughened glass 406 as transparent pressure-bearing member, can effectually be applicable to on various pressure vessels, and can also directly stir handle 402 through the rotation when the inner wall of toughened glass 406 is polluted by fog etc. and leads to the field of vision unclear, it clears up toughened glass 406 to drive the polytetrafluoroethylene doctor blade 407 that is located toughened glass 406 inboard, thereby the observation effect has been ensured. The device replaces traditional hinge system bolt through die-casting fashioned special lid fixed pin 13 and can provide longer life and adopt the axle to replace dismantlement and the installation of the convenient pendulum rod that the nut also can be great with the jump ring, and the device still provides the inside pressure sight glass device of convenient observation container, not only can be effectual inside the observation container, can also clear up fast and shelter from the thing and provide good observation effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. A manhole structure with pressure sight glass, comprising a manhole lower flange (14) associated with an external container, characterized in that: the manhole lower flange (14) is integrally formed with a first hinge lug (19), the first hinge lug (19) is hinged with a swing rod (6) through a cover fixing pin (13), the swing rod (6) comprises a hinge matching seat (602) hinged with the cover fixing pin (13), a rod piece (601) is integrally formed on the hinge matching seat (602), a limiting bulge (603) used for abutting against the outer wall surface of the manhole lower flange (14) is fixedly installed at the bottom of the hinge matching seat (602), a manhole cover (5) is fixedly installed at the tail end of the rod piece (601) through a bolt, and a clamp spring (12) for a first shaft is installed at the tail end of the cover fixing pin (13) in a clamping mode;

the upper viewing mirror flange (2) is installed on the manhole cover (5) through an inner hexagonal bolt (1), the upper viewing mirror flange (2) and the manhole cover (5) are clamped and installed through a polytetrafluoroethylene glass gasket (3), the pressure viewing mirror device (4) comprises toughened glass (406) which is attached and clamped with the polytetrafluoroethylene glass gasket (3), a kingpin (401) is hinged to the toughened glass (406), a first sleeve (403) and a second sleeve (404) are sequentially and fixedly installed on the kingpin (401) in series from top to bottom, a polytetrafluoroethylene gasket (405) is installed between the lower end of the second sleeve (404) and the upper end of the toughened glass (406), a third sleeve (409) which is fixed with the second sleeve (404) is installed at the bottom of the toughened glass (406) through an outer hexagonal bolt (410), and the polytetrafluoroethylene gasket (405) is installed between the upper end of the third sleeve (409) and the lower end of the toughened glass (406), the upper end of the first sleeve (403) is provided with a toggle handle (402) through screw threads in a screwed mode, a fixing plate (408) is arranged on the third sleeve (409) through a screw, and a polytetrafluoroethylene scraping blade (407) attached to toughened glass (406) is arranged on the fixing plate (408) through a screw;

the outside integrated into one piece of flange (14) has two at least pairs of second hinge lug (20) that are the circumference array setting under the manhole, and articulates through lock solid fixed pin (17) on second hinge lug (20) and installs screw rod (11), the terminal chucking of lock solid fixed pin (17) is installed jump ring (15) for the secondary shaft, and the terminal spiro union of screw rod (11) installs plum blossom handle (8), screw rod (11) are cup jointed in the below department that corresponds plum blossom handle (8) and are installed and are pressed sign indicating number (9), and press between the lower extreme of sign indicating number (9) and the bottom of screw rod (11) through spring (10) fixed mounting, press and offer the draw-in groove with the edge chucking of manhole cover (5) on sign indicating number (9), and weld on manhole cover (5) and install and cover handle (18).

2. A manhole structure with pressure sight glasses according to claim 1, wherein: and a sealing ring (7) matched with the manhole lower flange (14) is tightly clamped and installed at the bottom of the manhole cover (5).

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