CN203899325U - Blind plate overall locking type natural gas filter - Google Patents

Abstract

The utility model discloses a blind plate overall locking type natural gas filter and belongs to the technical field of filter devices. The blind plate overall locking type natural gas filter comprises a cylinder, a blind plate, a group of filter elements and a manual clamping ring operation mechanism, wherein a separation disk is arranged in a cavity of the cylinder; a gas outlet connector is connected to the wall of a gas outlet cavity in a matched mode; a gas inlet connector is connected to the wall of a filter cavity in a matched mode; a blind plate matching connector is formed in the cylinder; a blind plate sealing ring and a clamping ring are arranged on the blind plate; the filter elements are arranged in the filter cavity; the manual clamping ring operation mechanism is arranged on one side of the blind plate and is connected with the clamping ring. The blind plate overall locking type natural gas filter is characterized in that a clamping ring accommodating groove is formed in the blind plate; the clamping ring is matched with the clamping ring accommodating groove; an expansion groove is formed in the circumferential direction of the clamping ring; a locking block cavity is formed in the blind plate; the manual clamping ring operation mechanism comprises a clamping ring upper opening connecting screw rod, a clamping ring lower opening connecting screw rod, a traction plate, a transitional traction plate, an operation handle, a locking block, a locking block positioning pin, a locking block positioning pin operation handle and a traction plate limiting seat. The blind plate overall locking type natural gas filter has the advantages that natural gas in the filter cavity is prevented from leaking; potential safety hazards are avoided; the natural gas filter is convenient to manufacture and assemble and easy to operate.

Description

Blind plate integral locking formula natural gas filter

Technical field

The utility model belongs to filter technical field, is specifically related to a kind of blind plate integral locking formula natural gas filter.

Background technology

Owing to containing solid particle polluter and micro-liquid in natural gas, therefore conventionally on natural gas transport pipeline, arrange filter, natural gas after being filtered could meet pure requirement, otherwise can affect result of use, more precisely affect combustion efficiency, for example, when natural gas is during as the civilian burning energy, if pure degree is poor, so easily cause gas utensil obstruction and carbon deposit etc., and in the time of commercial Application, have the anxiety that undermines burner.

Natural gas filter has vertical and horizontal two kinds, vertical natural gas filter is as Chinese patent CN2513654Y(natural gas filter), CN2621795Y(Multifunctional gas filter), CN2743014Y(fast opening type pipe line filter), CN2787288Y(natural gas precise filter) and CN100535501C(natural gas filter), etc.Vertical natural gas filter has for Horizontal natural gas filter that to take up room little be the strong point that floor space is little, but the comparatively trouble such as filter core was for example changed in inspection, Horizontal natural gas filter is subject to thinking highly of of industry in view of this, technical information about Horizontal natural gas filter can be seen in equally in disclosed Chinese patent literature, as CN2474207Y(cartridge type natural gas, < coal gas > filter), CN201040223Y(natural gas mercury-removing filter), CN201394401Y(natural gas filter) and the Granted publication that proposed by the applicant number be CN102559314B(Horizontal natural gas filter), etc..

No matter be vertical or Horizontal natural gas filter is all furnished with lid (industry is called lid " blind plate " conventionally, as follows), when natural gas filter for example uses after a period of time need be to being arranged on filter replacement in cylindrical shell (also claiming tank body) or when clean according to the pressure reduction changing condition on inlet, outlet pipeline, need to open blind plate, otherwise blind plate and cylindrical shell are sealed and matched, can refer to aforementioned invention patent mandate notification number CN102559314B to this.

Can carry just as water the reason that boat again can capsized boat, natural gas can be provided convenience for people's daily life and industrial and agricultural production etc., but be also attended by danger, therefore as the supplying sector of natural air-air source, the installation that is arranged on the filter on natural gas transport pipeline is attached great importance to, especially very harsh to the technical requirement of the blind plate for matching with cylindrical shell, specifically at least show as the following aspects; One, the accent position of blind plate and cylindrical shell the hub position of cylindrical shell (with) must have excellent sealing, leaks avoiding; They are two years old, in the time that blind plate is coordinated with the accent position of cylindrical shell, can guarantee that the position, edge of blind plate and cylindrical shell are with the effect integral locking as Tenon, to avoid occurring under the pressure of the natural gas in cylindrical shell that the dangerous situation that blind plate leaves (also can claim to escape) cylindrical shell occurs; Its three, to blind plate open or close easy to operate.

Same can being seen in disclosed Chinese patent literature of technical information of matching with the accent position of cylindrical shell about blind plate, typically as application for a patent for invention publication No. CN101737622A recommends to have " lock-ring safety quick open blind plate ", although this patent application scheme is in the time of accent (patent application claims that accent the is hub) closure of blind plate (patent claims door closure) and cylindrical shell, play sealing process by blind plate, but because snap ring-type lock ring does not have Telescopic, thereby do not produce and the effect of cylinder chamber port part entirety positive lock, and because needs configure cross bearer, thereby complex structure not only, and make whole blind plate seem too fat to move, and close or open operation trouble, and for example Granted publication CN203614730U provides " a kind of fast opening blind of easy access ", this patent scheme is the improvement proposing for the shortcoming of aforementioned CN101737622A, it is, in the edge of blind plate, the breach enclosing around blind plate one is set, on breach, be stamped pressing plate, coordinate with breach by pressing plate and form the groove (specifically can referring to the 0002nd section and 0008 section, the description of this patent) that holds lock ring, although this patent scheme can embody the 0011st section of technique effect to 0013 section of conclusion of its description to a certain extent, but because macrostructure is still identical with CN101737622A, thereby there is equally the shortcoming of aforementioned CN101737622A.

More typical " lock band embedded quick-opening blind plate " disclosing as application for a patent for invention publication number CN101038060A, this patent scheme provides a connecting rod tightener, can embody the integral locking effect (seeing the 2nd section reciprocal of Instructions Page 2) with accent position in the time that blind plate coordinates with the accent of cylindrical shell.The structure of connecting rod tightener is: seven keel are fixed around the circumferencial direction of tapered metallic elastic steel ring with screw assembly, and at the each hinge support of fixing in the two ends of tapered metallic elastic steel ring, between two hinge supports, connect a connecting rod, and a hole pendulum is set on one of them hinge support in two hinge supports.In the time putting and rotate to clockwise direction with handle (patent claims boosting-rod) patchhole, by connecting rod, tapered metallic elastic steel ring is expanded outwardly, drive seven keel to be embedded in to the groove at the accent place of cylindrical shell by tapered metallic elastic steel ring simultaneously, blind plate is integrally coordinated with cylindrical shell, otherwise with example.Can be referring to Fig. 4 of last two sections and this patent of the 5th page, the 2nd section of the description embodiment of this patent application (Instructions Page 3 reciprocal the 2nd section) and description to this.Thereby known, CN101038060A can eliminate aforementioned CN101737622A and CN203614730U can not with the shortcoming of the groove integral locking at the accent place of cylindrical shell.

But still there is following shortcoming in above-mentioned CN101038060A: one, and with regard to manufacture, because needs are made separately seven pieces of independently keel, thereby make efficiency is low, although the structure of seven pieces of keel is identical, its two, with regard to assembling, due to need to be by seven pieces of keel around the circumferencial direction of tapered metallic elastic steel ring with screw assembly by piece fixing, thereby comparatively trouble of assembling, they are three years old, because seven pieces of keel are taking tapered metallic elastic steel ring as carrier, it is the transition member that tapered metallic elastic steel ring is seven pieces of keel, can direct affect the integral locking effect between seven pieces of keel and cylindrical shell again because the motion of seven pieces of keel is ensured by expanding outwardly with inside contraction of tapered metallic elastic steel ring, thereby when having when tired and even distortion appear in the tapered metallic elastic steel ring of spring leaf effect, they are four years old, with regard to the overall structure of connecting bar locking device, because the opening that need be the tapered metallic elastic steel ring of C font in shape respectively fixes a hinge support in the mode being welded and fixed at its two ends, and a hole pendulum is set on a hinge support therein, hole pendulum is made up of a transition brace and afterburning pole socket, one end of transition brace is pivotally connected on one of them hinge support in two hinge supports, the other end and connecting rod one end are hinged, and another hinge support in the other end of connecting rod and two hinge supports is hinged, afterburning pole socket is fixed on the middle part of transition brace, therefore the two ends of tapered metallic elastic steel ring are connected comparatively complicated.

For above-mentioned prior art, be necessary to be improved, the applicant has done useful design for this reason, has finally formed technical scheme described below, and taked under secrecy provision the application laboratory made simulated test, that result proves is practicable.

Summary of the invention

Task of the present utility model is to provide a kind of and contributes to the sealing of the opening that ensures blind plate and cylindrical shell and use and avoid leaking, be conducive to the edge of the circumferencial direction that makes blind plate and the opening integral locking of cylindrical shell and use the pressure of the natural gas in the cylinder chamber that bears reliably cylindrical shell and avoid hidden danger that embodiment structure occurs, is of value to terse and use the blind plate integral locking formula natural gas filter that facilitates manufacture and assembling and processing ease.

Task of the present utility model completes like this, a kind of blind plate integral locking formula natural gas filter, comprise the cylindrical shell arranging with horizontally-arranged state in use, in the cylinder chamber of this cylindrical shell, be provided with a separator disc, by this separator disc, cylinder chamber is divided into outlet chamber and filter chamber, and on the outlet chamber wall of outlet chamber, connect the interface of giving vent to anger for the natural gas after being filtered by filter chamber is drawn, and on the filter chamber wall of filter chamber and towards on a side connect one for the natural gas that awaits filtering being introduced to the intake interface of filter chamber, on cylindrical shell and at the opening corresponding to described filter chamber, form and have a blind plate mating interface, on the inwall of this blind plate mating interface and around the circumferencial direction of blind plate mating interface, form and have a blind plate sealing chamber and a snap ring locking caulking groove, wherein: blind plate sealing chamber is positioned at the left side of snap ring locking caulking groove, one blind plate, this blind plate is pivotally connected with blind plate mating interface and match with blind plate mating interface, on this blind plate, be provided with a blind plate sealing circle and a snap ring around the circumferencial direction of blind plate, blind plate sealing circle and described blind plate sealing chamber are sealed and matched, and snap ring matches with described snap ring locking caulking groove, cross filter core for one group, this was organized filter core and was arranged in described filter chamber with horizontally-arranged state, and this filter core chamber of crossing of organizing filter core communicates with described outlet chamber, one enters or exits the snap ring manual-operating mechanism of described snap ring locking caulking groove for ordering about described snap ring, this snap ring manual-operating mechanism is arranged on described blind plate and crosses a side of filter core and be connected with snap ring back to described one group, be characterised in that: on described blind plate and in the position corresponding to described snap ring, offer a snap ring holding tank around the circumferencial direction of blind plate, described snap ring matches with this snap ring holding tank, and the circumferencial direction at snap ring offers expansion slot with interval state, on blind plate and in the position corresponding to described snap ring manual-operating mechanism, form and have a lock dog chamber, described snap ring manual-operating mechanism comprises snap ring upper port connecting screw rod, snap ring lower port connecting screw rod, towing plate, transition towing plate, operating grip, lock dog, lock dog alignment pin, lock dog alignment pin operating grip and towing plate limit base, the snap ring upper port of snap ring upper port connecting screw rod and snap ring is fixed, and the snap ring lower port of snap ring lower port connecting screw rod and snap ring is fixed, towing plate forms one first towing plate arm and one second towing plate arm, the first towing plate arm hub setting is on the first towing plate arm bearing pin, and this first towing plate arm bearing pin is fixed on described blind plate, the second towing plate arm is connected on described snap ring lower port connecting screw rod, one end of transition towing plate is connected with described snap ring upper port connecting screw rod, middle part forms an operating grip socket, the other end is connected on described the first towing plate arm bearing pin, operating grip coordinates with the plug of operating grip socket, lock dog is arranged in described lock dog chamber and corresponding on described snap ring, between lower port, on this lock dog, form and have a lock dog to limit arm, on this lock dog restriction arm, offer a lock dog and limit arm hole, lock dog alignment pin limits arm hole and is threaded with the lock dog alignment pin screw being opened on blind plate through lock dog, lock dog alignment pin operating grip coordinates with the plug of lock dog alignment pin, towing plate limit base is fixed on the side of blind plate back to filter chamber, this towing plate limit base forms a towing plate limit base chamber, described towing plate and transition towing plate are insinuated in towing plate limit base chamber, wherein: on described blind plate and offering a screw limiting chute corresponding to the position of snap ring lower port connecting screw rod, snap ring lower port connecting screw rod is through this screw limiting chute.

In a specific embodiment of the present utility model, on the outer wall of described blind plate mating interface and be positioned at a side and be extended with a pair of door-hinge hinged support seat, self correspondence of this opposite house pivot hinge supporting base, and pivot is provided with a door-hinge hinge between this opposite house pivot hinge supporting base, be fixed with a pair of blind plate axle bed at described blind plate back to the described side of filter core crossed, this pair of blind plate axle bed self corresponding and with door-hinge chain connection.

In another specific embodiment of the present utility model, described door-hinge hinge comprises hinge chain sheet fixed axis and a pair of hinge chain sheet, this a pair of hinge chain sheet is separately fixed at the two ends of hinge chain sheet fixed axis, and each formation has a hinge chain bobbin in one end of this pair of hinge chain sheet, hinge chain bobbin is bearing on hinge chain sheet axle bed rotationally, and hinge chain sheet axle bed is fixed on described door-hinge hinged support seat, respectively offer a hinge chain sheet axis hole at the other end of a pair of hinge chain sheet, on hinge chain sheet axis hole, be equipped with a hinge chain sheet bearing pin, described a pair of blind plate axle bed is connected with hinge chain sheet bearing pin.

In another specific embodiment of the present utility model, on described blind plate and in the position corresponding to described blind plate sealing circle, offer a blind plate sealing ring recess around the circumferencial direction of blind plate, blind plate sealing circle is embedded in this blind plate sealing ring recess.

In another specific embodiment of the present utility model, described blind plate sealing circle is rubber ring.

Also have in a specific embodiment of the present utility model, the degree of depth of described snap ring holding tank is to adapt with the height of described snap ring, and the width of snap ring holding tank is to adapt with the thickness of snap ring.

More of the present utility model and in a specific embodiment, the global shape of described snap ring is C font.

In of the present utility model and then a specific embodiment, on the described first towing plate arm of described towing plate and offering one first towing plate arm pivoting hole corresponding to the position of described the first towing plate arm bearing pin, this first towing plate arm pivoting hole is nested with on the first towing plate arm bearing pin, on described the second towing plate arm and offering one second towing plate arm pivoting hole corresponding to the position of described snap ring lower port connecting screw rod, this the second towing plate arm pivoting hole is nested with on snap ring lower port connecting screw rod, and is limited by the nut that limits being configured on snap ring lower port connecting screw rod, in one end of described transition towing plate and offering a First Transition towing plate pivoting hole corresponding to the position of described snap ring upper port connecting screw rod, this First Transition towing plate pivoting hole is nested with on snap ring upper port connecting screw rod and by the stop nut screwing on snap ring upper port connecting screw rod and limits, at the other end of described transition towing plate and offering one second transition towing plate pivoting hole corresponding to the position of described the first towing plate arm bearing pin, this the second transition towing plate pivoting hole is nested with on the first towing plate arm bearing pin and by the restriction nut screwing on the first towing plate arm bearing pin and limits.

Of the present utility model again more and in a specific embodiment, the shape of described towing plate is a font; The shape of described transition towing plate is L font.

In again of the present utility model and then a specific embodiment, the length in described lock dog chamber and width are to adapt with length and the width of described lock dog.

The technical scheme that the utility model provides has following technique effect with respect to prior art: one, is sealed and matched and can be avoided natural gas in filter chamber to external leakage by blind plate sealing circle and blind plate sealing chamber; They are two years old, by the snap ring locking caulking groove integral locking that is arranged on snap ring in snap ring holding tank and makes the edge of circumferencial direction and the blind plate mating interface of the cylindrical shell inner side of blind plate, thereby can make blind plate bear reliably the pressure of the natural gas in the cylinder chamber of cylindrical shell, avoid hidden danger; Its three, due to snap ring and significantly terse for ordering about the structure of snap ring manual-operating mechanism of snap ring activity, thereby not only can conveniently make and assemble, and processing ease.

Brief description of the drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is the overall structure schematic diagram of Fig. 1.

Fig. 3 is the detailed structure view of the snap ring shown in Fig. 1.

Fig. 4 is schematic diagram when operation makes blind plate open with respect to the blind plate mating interface of cylindrical shell to snap ring manual-operating mechanism.

Fig. 5 is schematic diagram when operation makes blind plate seal with respect to the blind plate mating interface of cylindrical shell to snap ring manual-operating mechanism.

Detailed description of the invention

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the utility model scheme to the description of embodiment, any done according to the utility model design only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

The concept of every directionality that relates to upper and lower, left and right, front and rear (or claiming directionality) is all for the residing location status of figure being described in the following description, object is to facilitate public understanding, thereby can not be understood as being particularly limited of technical scheme that the utility model is provided.

Refer to Fig. 1 and Fig. 2, figure 2 illustrates cylindrical shell 1(and also can be called tank body, as follows) overall picture, this cylindrical shell 1 is arranged at horizontally-arranged state on the terrace of field of employment by support foot 15 in use, in the cylinder chamber of this cylindrical shell 1, be provided with a separator disc 11, by this separator disc 11, the length direction of cylinder chamber be divided into outlet chamber 12 and filter chamber 13.In the present embodiment, outlet chamber 12 is positioned at the left side of separator disc 11, and filter chamber 13 is positioned at the right side of separator disc 11.On the left chamber wall of outlet chamber 12, connected the interface 121(Fig. 2 that gives vent to anger shows at the left end position of outlet chamber 12), by this interface 121 of giving vent to anger, the natural gas after being filtered by filter chamber 13 is drawn.On the filter chamber wall of filter chamber 13 and towards on a side connect one and supplied the intake interface 131 of filter element filtering for the natural gas that awaits filtering is introduced to filter chamber 13.

Also can configure a collector tube 16(in the bottom of cylindrical shell 1 as preferred scheme and also can claim liquid collecting tank, as follows), the top of this collector tube 16 is connected with cylindrical shell 1 by changeover joint 161, and communicate with cylinder chamber, and sewage draining exit 162 is set in the bottom of collector tube 16, valve (not shown) is set on blowdown interface 162.

Please see Fig. 1 by emphasis, on aforementioned cylindrical shell 1 and at the opening corresponding to filter chamber 13, form and have a blind plate mating interface 14(in industry at the position on the right-hand member corresponding to location status shown in Fig. 1 or title right side, conventionally blind plate mating interface 14 is called to " hub "), on the inwall of this blind plate mating interface 14 and around the circumferencial direction of blind plate mating interface, form and have step-like blind plate sealing chamber 141 and a snap ring locking caulking groove 142.As shown in Figure 1, blind plate sealing chamber 141 is positioned at the left side of snap ring locking caulking groove 142, that is to say that snap ring locking caulking groove 142 is positioned at the right side in blind plate sealing chamber 141.Certainly, snap ring locking caulking groove 142 is depressed in the inner wall surface of blind plate mating interface 14, forms the structure that shape of cross section is the channel-like of U font.

Provided a blind plate 2, this blind plate 2 is essentially cover, pivotally connected with blind plate mating interface 14 and match with blind plate mating interface 14, and the alleged concept matching with blind plate mating interface 14 refers to blind plate mating interface 14 is sealed or opened here.On blind plate 2, be provided with a blind plate sealing circle 21 and a snap ring 22 around the circumferencial direction of blind plate 2, in the time of the state of blind plate 2 in blind plate mating interface 14 is sealed, blind plate sealing circle 21 is sealed and matched with aforementioned blind plate sealing chamber 141, and snap ring 22 matches with snap ring locking caulking groove 142.

Provided one group and crossed filter core 3, this was organized filter core 3 and was arranged in filter chamber 13 with horizontally-arranged state, and according to professional general knowledge, this filter core chamber of crossing of organizing filter core 3 communicates with aforementioned outlet chamber 12.Provided a snap ring manual-operating mechanism 4 that enters or exit snap ring locking caulking groove 142 for ordering about aforementioned snap ring 22, this snap ring manual-operating mechanism 4 is arranged on blind plate 2 and is arranged on blind plate 2 back to a side of crossing filter core 3 and is also arranged on blind plate 2 side outward under use state back to a side of filter chamber 13.

Ask for an interview Fig. 3 and still in conjunction with Fig. 1, the technical essential of the technical scheme providing as the utility model: offer the logical snap ring holding tank 23 of ring one around the circumferencial direction of blind plate 2 on aforesaid blind plate 2 and in the position corresponding to snap ring 22, snap ring 22 matches with this snap ring holding tank 23, and the circumferencial direction at snap ring 22 offers expansion slot 221 with interval state, each expansion slot 221 extends towards the center position of snap ring 2 from the outer surface of snap ring 22, but can not connect the width of snap ring 2, otherwise snap ring 22 can be isolated into one by one to fritter and lose use (cannot use), make snap ring 2 form the effect of accordion by expansion slot 221, form the effect that is similar to spring.On blind plate 2 and in the position corresponding to aforementioned snap ring manual-operating mechanism 4, form and have a lock dog chamber 25.

Continue to see Fig. 1, aforementioned snap ring manual-operating mechanism 4 preferably but not the structure being definitely limited to is as follows: comprise snap ring upper port connecting screw rod 41, snap ring lower port connecting screw rod 42, towing plate 43, transition towing plate 44, operating grip 45, lock dog 46, lock dog alignment pin 47, lock dog alignment pin operating grip 48 and towing plate limit base 49, snap ring upper port connecting screw rod 41 is fixing with the snap ring upper port 222 of snap ring 2, and snap ring lower port connecting screw rod 42 is fixing with the snap ring lower port 223 of snap ring 2, snap ring upper port 222 and snap ring lower port 223 are corresponding to aforementioned lock dog chamber 25, towing plate 43 forms one first towing plate arm 431 and one second towing plate arm 432, the first towing plate arm 431 hub settings are on the first towing plate arm bearing pin 4311, and this first towing plate arm bearing pin 4311 is fixed on blind plate 2, be fixed on blind plate 2 side outward, the second towing plate arm 432 is connected on snap ring lower port connecting screw rod 42, one end of transition towing plate 44 is connected with aforementioned snap ring upper port connecting screw rod 41, middle part forms an operating grip socket 441, the other end is connected on aforementioned the first towing plate arm bearing pin 4311, operating grip 45 coordinates with 441 plugs of operating grip socket, lock dog 46 is arranged in aforementioned lock dog chamber 25 and corresponding on described snap ring, lower port 222, between 223, on this lock dog 46, form and have a lock dog to limit arm 461, on this lock dog restriction arm 461, offer a lock dog and limit arm hole 4611, lock dog alignment pin 47 limits arm hole 4611 and is threaded with the lock dog alignment pin screw 26 being opened on blind plate 2 through lock dog, lock dog alignment pin operating grip 48 coordinates with 47 plugs of lock dog alignment pin, as shown in Figure 1, on lock dog locating slot 47, offer a hole 472, lock dog alignment pin operating grip 48 coordinates with these hole 472 plugs, towing plate limit base 49 is fixed on the side of blind plate 2 back to filter chamber 13, be fixed on blind plate 2 side outward, this towing plate limit base 49 forms a towing plate limit base chamber 491, aforementioned towing plate 43 and transition towing plate 44 are insinuated in towing plate limit base chamber 491, wherein: on aforementioned blind plate 2 and offering a screw limiting chute 29 corresponding to the position of aforementioned snap ring lower port connecting screw rod 42, snap ring lower port connecting screw rod 42 is through this screw limiting chute 29.

Preferably, on the outer wall of aforesaid blind plate mating interface 14 and be positioned at a side and be extended with a pair of door-hinge hinged support seat 143, self correspondence of this opposite house pivot hinge supporting base 143, and pivot is provided with a door-hinge hinge 5 between this opposite house pivot hinge supporting base 143, be fixed with a pair of blind plate axle bed 27 back to a side of filter chamber 13 with blind plate axle bed screw 271 at aforementioned blind plate 2 back to crossing filter core 3, self correspondence and pivotally connected with door-hinge hinge 5 of this pair of blind plate axle bed 27.

Aforesaid door-hinge hinge 5 comprises hinge chain sheet fixed axis 51 and a pair of hinge chain sheet 52, this a pair of hinge chain sheet 52 is separately fixed at the two ends of hinge chain sheet fixed axis 51, and each formation has a hinge chain bobbin 521 in one end of this pair of hinge chain sheet 52, hinge chain bobbin 521 is bearing on hinge chain sheet axle bed 5211 rotationally, and hinge chain sheet axle bed 5211 is fixed on aforementioned door-hinge hinged support seat 143, respectively offer a hinge chain sheet axis hole 522 at the other end of a pair of hinge chain sheet 52, on hinge chain sheet axis hole 522, be equipped with a hinge chain sheet bearing pin 5221, aforesaid a pair of blind plate axle bed 27 is connected with hinge chain sheet bearing pin 5221, specifically: on blind plate axle bed 27, form and have a hinge chain sheet bearing pin mating holes 272, hinge chain sheet bearing pin 5221 is supported in hinge chain sheet bearing pin mating holes 272, and limited by the dog screw 273 being disposed on blind plate axle bed 27.

On aforesaid blind plate 2 and in the position corresponding to aforementioned blind plate sealing circle 21, offer a blind plate sealing ring recess 28 around the circumferencial direction of blind plate 2, blind plate sealing circle 21 is embedded in this blind plate sealing ring recess 28.Particularly, blind plate sealing ring recess 28 is positioned at blind plate 2 towards a side of filter chamber 13 and corresponding with blind plate sealing chamber 141.In the present embodiment, blind plate sealing circle 21 adopts rubber ring.

As preferred scheme, the height of the degree of depth of aforesaid snap ring holding tank 23 and snap ring 22 adapts, the height of the snap ring 22 said here refer to surface from snap ring 22 side outward to snap ring 22 distance towards the surface of an interior side; The thickness of the width of snap ring holding tank 23 and snap ring 22 adapts, and the thickness of alleged snap ring 22 is taking location status shown in Fig. 3 as example here, from the left surface of snap ring 22 to the distance between right flank.

Shown in Fig. 1 and Fig. 3, the global shape of snap ring 22 is the C font of English alphabet, makes snap ring 22 have two end points by this shape, and these two end points are aforesaid snap ring upper port 222 and snap ring lower port 223.

As shown in Figure 1, on the first towing plate arm 431 of aforementioned towing plate 43 and offering one first towing plate arm pivoting hole 4312 corresponding to the position of the first towing plate arm bearing pin 4311, this first towing plate arm pivoting hole 4312 is nested with on the first towing plate arm bearing pin 4311, on aforementioned the second towing plate arm 432 and offering one second towing plate arm pivoting hole 4321 corresponding to the position of described snap ring lower port connecting screw rod 42, this the second towing plate arm pivoting hole 4321 is nested with on snap ring lower port connecting screw rod 42, and is limited by the nut 421 that limits being configured in thread fiting mode on snap ring lower port connecting screw rod 42, in one end of aforementioned transition towing plate 44 and offering a First Transition towing plate pivoting hole 442 corresponding to the position of snap ring upper port connecting screw rod 41, this First Transition towing plate pivoting hole 442 is nested with on snap ring upper port connecting screw rod 41 and by the stop nut 411 screwing with thread fiting mode on snap ring upper port connecting screw rod 41 and limits, at the other end of transition towing plate 44 and offering one second transition towing plate pivoting hole 443 corresponding to the position of the first towing plate arm bearing pin 4311, this the second transition towing plate pivoting hole 443 is nested with on the first towing plate arm bearing pin 4311 and by the restriction nut 43111 screwing with thread fiting mode on the first towing plate arm bearing pin 4311 and limits.

Shown in Fig. 1, the shape of aforementioned towing plate 43 is a font, and the shape of aforementioned transition towing plate 44 is L font.In addition, length and the width of the length in above mentioned lock dog chamber 25 and width and lock dog 46 adapt, and distance between upper and lower snap ring port 222,223 and the length of lock dog 46 adapt.

According to common practise, if exist under the pressure state being produced by natural gas and open blind plate 2 in the cylinder chamber of cylindrical shell 1, so certainly be attended by potential safety hazard, that is to say that when the natural gas only needing in the cylinder chamber of cylindrical shell 1 is tending towards draining, opening blind plate 2 could fully ensure safety, according in this factor, applicant recommends to have a pressure release response means 6 that belongs to safety device category.

In the present embodiment, above mentioned pressure release response means 6 has been arranged on aforesaid towing plate limit base 49, but also can be set directly at blind plate 2 back to the i.e. side outward of filter chamber 13, be played by this pressure release response means 6 effect that lock dog alignment pin 47 is locked or unlocked with coordinating of aforementioned lock dog alignment pin 47.

In the present embodiment, aforementioned pressure release response means 6 comprises emptying responsive valves 61 and emptying response pipe 62, emptying responsive valves 61 is fixed on valve seat 612, and valve seat 612 use valve seat hold-down screws 6121 are fixedly being located on aforementioned towing plate limit base 49 corresponding to the position that is preset in the valve seat fixing threaded hole 492 on towing plate restriction seat 49, the spool chamber that the end of the spool 611 of this emptying responsive valves 61 leans out emptying responsive valves 61 matches with aforementioned lock dog alignment pin 47, one end of emptying response pipe 62 be arranged on emptying on blind plate 2 and that communicate with filter chamber 13 and respond pipe joint 621 and be connected, and the other end of emptying response pipe 62 is connected with emptying responsive valves 61 and communicates with the valve pocket of emptying responsive valves 61.In the time that the pressure of aforementioned filter chamber 13 is zero, spool 611 is to the spool chamber intrinsic displacement of emptying responsive valves 61, thereby removes the locking to lock dog alignment pin 47, and when filter chamber 13 is interior while there is pressure, and spool 611 is in to lock dog alignment pin 47 lock-out states.

In Fig. 1, show and be formed in a spool on lock dog alignment pin 47 and that offer around the circumferencial direction of lock dog alignment pin 47 and probe into recessed road 471, this spool probes into being recessed in the surface of lock dog alignment pin 47 of recessed road 471, forms the shape of neck.In the time there is pressure in the cylinder chamber of cylindrical shell 1, because the end of spool 611 probes into recessed road 471 corresponding to spool, thereby lock dog alignment pin 47 cannot exit from aforesaid lock dog alignment pin screw 26, lock dog alignment pin 47 is being kept and the connecting state of aforementioned lock dog 46, namely make lock dog alignment pin 47 in the finite-state to lock dog 46, lock dog just cannot be got from aforesaid lock dog chamber 25, snap ring manual-operating mechanism 4 cannot operate snap ring 22, make snap ring all the time in snap ring locking caulking groove 142, blind plate 2 just can not be opened, otherwise with example.Hence one can see that, can only under abundant safing state, be just to be opened blind plate 2 while there is not gas pressure in the cylinder chamber of cylindrical shell 1, stops the generation of contingency.

The emptying responsive valves 61 of aforementioned pressure release response means 6 preferably use by produced by permanent valve member Co., Ltd of Jiangsu Province, China Changshu City and before the application proposes, be YJ-A-7 safety valve in the model of market sale.

In order fully to ensure that snap ring 22 is able to and the lasting fiting effect of snap ring locking caulking groove 142, thereby on aforementioned blind plate mating interface 14 around the circumferencial direction of blind plate mating interface 14 and point is being offered to lancing door 144 in the position of snap ring locking caulking groove 142 with interval state, lancing door 144 communicates with snap ring locking groove 142, and is equipped with sealing screw 1441 on lancing door 144.

Through use after a while, in snap ring locking caulking groove 142, stiffly productive set has dirt foreign material unavoidably, therefore in the time will cleaning snap ring locking caulking groove 142, as long as whiz sealing screw 1441, with the valve being connected with compressed air gas source device pipeline or similarly instrument aligning lancing door 144 gas injections, thereby dirt foreign material can be expelled in snap ring locking groove 142.Certainly also can inject water under high pressure by working pressure hydraulic giant aligning lancing door 144, be removed the dirt foreign material that accumulate in snap ring locking groove 142 by high pressure water flushing.

Refer to Fig. 4 and Fig. 5 and in conjunction with Fig. 1 to Fig. 3, in the time will or changing filter core 3 inspections excessively in aforementioned filter chamber 13, first (not shown by the atmospheric valve on cylindrical shell 1, but can be by the reading of Chinese invention patent CN102559314B be understood) emptying, owing to there not being pressure in the cylinder chamber of cylindrical shell 1, be to exist without natural gas in filter chamber 13, therefore emptying response pipe 62 is interior without pressure, the spool 611 of emptying responsive valves 61 probes in recessed road 471 and exits from the spool of lock dog alignment pin 47, removes the locking to lock dog alignment pin 47.Lock dog alignment pin 47 is operated by lock dog alignment pin operating grip 48 by operating personnel, it is exited from lock dog alignment pin screw 26, and lock dog 46 is moved apart in lock dog chamber 25, follow by operator operating grip 45 update handle sockets 441, and by operating grip 45 to counter clockwise direction switching (applying active force to counter clockwise direction), because one end of the transition towing plate 44 of snap ring manual-operating mechanism 4 is nested with on snap ring upper port connecting screw rod 41, the other end is nested with on the first towing plate arm bearing pin 4311, again because the first towing plate arm 431 of towing plate 43 is enclosed within on the first towing plate arm bearing pin 4311, the second towing plate arm 432 of towing plate 43 is enclosed within on snap ring lower port connecting screw rod 42, also due on snap ring, lower port connecting screw rod 41, 42 are separately fixed on the snap ring of snap ring 22, lower port 222, on 223, therefore when operating grip 45 is during to counterclockwise motion, drive snap ring upper port 222 to bottom offset by snap ring upper port connecting screw rod 41, snap ring 22 shrinks and exits from snap ring locking caulking groove 142, and to snap ring holding tank 23 intrinsic displacements, under this state, just blind plate 2 can be opened towards the direction that deviates from blind plate mating interface 14, operating grip 45 is now in location status as shown in Figure 4, operator just can carry out inspection or replacing to the filter core 3 of crossing in filter chamber 13.

When to after mistake filter core 3 inspections or more having changed jobs, press so aforementioned contrary course of action, until snap ring 22 is integrally embedded in snap ring locking caulking groove 142, operating grip 45 is the location status of being illustrated by Fig. 5.Lock dog 46 is positioned at lock dog chamber 25, and lock dog alignment pin 47 is back to the state being connected with lock dog alignment pin screw 26.In the time there is natural gas in the cylinder chamber of cylindrical shell 1, namely when in cylindrical shell 1 cross the state of filter core 3 in the filtration to natural gas time, the spool that the spool 611 of pressure release response means 6 leant out and corresponded to lock dog alignment pin 47 to spool chamber probes in recessed road 471.

In sum, the technical scheme that the utility model provides has overcome the shortcoming in prior art, has successfully completed invention task, has embodied objectively the technique effect referring in the superincumbent technique effect of applicant hurdle, and can yet be regarded as is a good technical scheme.

Claims (10)

1. a kind of blind plate integral locking formula natural gas filter, comprise the cylindrical shell (1) arranging with horizontally-arranged state in use, in the cylinder chamber of this cylindrical shell (1), be provided with a separator disc (11), by this separator disc (11), cylinder chamber is divided into outlet chamber (12) and filter chamber (13), and on the outlet chamber wall of outlet chamber (12), connect one for by the natural gas interface of giving vent to anger (121) of drawing after being filtered by filter chamber (13), and connect one for the natural gas that awaits filtering being introduced to the intake interface (131) of filter chamber (13) on the filter chamber wall of filter chamber (13) and towards a upper side, above and at the opening corresponding to described filter chamber (13) form and have a blind plate mating interface (14) at cylindrical shell (1), on the inwall of this blind plate mating interface (14) and around the circumferencial direction of blind plate mating interface (14), form and have a blind plate sealing chamber (141) and a snap ring locking caulking groove (142), wherein: blind plate sealing chamber (141) are positioned at the left side of snap ring locking caulking groove (142), one blind plate (2), this blind plate (2) is pivotally connected with blind plate mating interface (14) and match with blind plate mating interface (14), above be provided with a blind plate sealing circle (21) and a snap ring (22) around the circumferencial direction of blind plate (2) at this blind plate (2), blind plate sealing circle (21) is sealed and matched with described blind plate sealing chamber (141), and snap ring (22) matches with described snap ring locking caulking groove (142), cross filter core (3) for one group, this was organized filter core (3) and was arranged in described filter chamber (13) with horizontally-arranged state, and this filter core chamber of crossing of organizing filter core (3) communicates with described outlet chamber (12), one enters or exits the snap ring manual-operating mechanism (4) of described snap ring locking caulking groove (142) for ordering about described snap ring (22), this snap ring manual-operating mechanism (4) is arranged on described blind plate (2) and crosses a side of filter core (3) and be connected with snap ring (22) back to described one group, it is characterized in that: go up and offer a snap ring holding tank (23) in the position corresponding to described snap ring (22) around the circumferencial direction of blind plate (2) at described blind plate (2), described snap ring (22) matches with this snap ring holding tank (23), and the circumferencial direction at snap ring (22) offers expansion slot (221) with interval state, above and in the position corresponding to described snap ring manual-operating mechanism (4) form and have a lock dog chamber (25) at blind plate (2), described snap ring manual-operating mechanism (4) comprises snap ring upper port connecting screw rod (41), snap ring lower port connecting screw rod (42), towing plate (43), transition towing plate (44), operating grip (45), lock dog (46), lock dog alignment pin (47), lock dog alignment pin operating grip (48) and towing plate limit base (49), snap ring upper port connecting screw rod (41) is fixing with the snap ring upper port (222) of snap ring (2), and snap ring lower port connecting screw rod (42) is fixing with the snap ring lower port (223) of snap ring (2), towing plate (43) forms one first towing plate arm (431) and one second towing plate arm (432), the first towing plate arm (431) hub setting is on the first towing plate arm bearing pin (4311), and this first towing plate arm bearing pin (4311) is fixed on described blind plate (2), the second towing plate arm (432) is connected on described snap ring lower port connecting screw rod (42), one end of transition towing plate (44) is connected with described snap ring upper port connecting screw rod (41), middle part forms an operating grip socket (441), the other end is connected on described the first towing plate arm bearing pin (4311), operating grip (45) coordinates with operating grip socket (441) plug, lock dog (46) is arranged in described lock dog chamber (25) and corresponding on described snap ring, lower port (222, 223) between, there is a lock dog to limit arm (461) in the upper formation of this lock dog (46), on this lock dog restriction arm (461), offer a lock dog and limit arm hole (4611), lock dog alignment pin (47) limits arm hole (4611) and is threaded with the lock dog alignment pin screw (26) being opened on blind plate (2) through lock dog, lock dog alignment pin operating grip (48) coordinates with lock dog alignment pin (47) plug, towing plate limit base (49) is fixed on the side of blind plate (2) back to filter chamber (13), this towing plate limit base (49) forms a towing plate limit base chamber (491), described towing plate (43) and transition towing plate (44) are insinuated in towing plate limit base chamber (491), wherein: go up and offering a screw limiting chute (29) corresponding to the position of snap ring lower port connecting screw rod (42) at described blind plate (2), snap ring lower port connecting screw rod (42) is through this screw limiting chute (29).

2. blind plate integral locking formula natural gas filter according to claim 1, it is characterized in that on the outer wall of described blind plate mating interface (14) and be positioned at a side being extended with a pair of door-hinge hinged support seat (143), self correspondence of this opposite house pivot hinge supporting base (143), and pivot is provided with a door-hinge hinge (5) between this opposite house pivot hinge supporting base (143), be fixed with a pair of blind plate axle bed (27) at described blind plate (2) back to a described side of crossing filter core (3), self is corresponding and be connected with door-hinge hinge (5) for this pair of blind plate axle bed (27).

3. blind plate integral locking formula natural gas filter according to claim 2, it is characterized in that described door-hinge hinge (5) comprises hinge chain sheet fixed axis (51) and a pair of hinge chain sheet (52), this a pair of hinge chain sheet (52) is separately fixed at the two ends of hinge chain sheet fixed axis (51), and each formation has a hinge chain bobbin (521) in one end of this pair of hinge chain sheet (52), hinge chain bobbin (521) is bearing on hinge chain sheet axle bed (5211) rotationally, and hinge chain sheet axle bed (5211) is fixed on described door-hinge hinged support seat (143), respectively offer a hinge chain sheet axis hole (522) at the other end of a pair of hinge chain sheet (52), on hinge chain sheet axis hole (522), be equipped with a hinge chain sheet bearing pin (5221), described a pair of blind plate axle bed (27) is connected with hinge chain sheet bearing pin (5221).

4. blind plate integral locking formula natural gas filter according to claim 1, it is characterized in that upper at described blind plate (2) and offer a blind plate sealing ring recess (28) in the position corresponding to described blind plate sealing circle (21) around the circumferencial direction of blind plate (2), blind plate sealing circle (21) is embedded in this blind plate sealing ring recess (28).

5. according to the blind plate integral locking formula natural gas filter described in claim 1 or 4, it is characterized in that described blind plate sealing circle (21) is rubber ring.

6. blind plate integral locking formula natural gas filter according to claim 1, the degree of depth that it is characterized in that described snap ring holding tank (23) is to adapt with the height of described snap ring (22), and the width of snap ring holding tank (23) is to adapt with the thickness of snap ring (22).

7. according to the blind plate integral locking formula natural gas filter described in claim 1 or 6, it is characterized in that the global shape of described snap ring (22) is C font.

8. blind plate integral locking formula natural gas filter according to claim 1, it is characterized in that on the described first towing plate arm (431) of described towing plate (43) and offering one first towing plate arm pivoting hole (4312) corresponding to the position of described the first towing plate arm bearing pin (4311), this first towing plate arm pivoting hole (4312) is nested with on the first towing plate arm bearing pin (4311), go up and offering one second towing plate arm pivoting hole (4321) corresponding to the position of described snap ring lower port connecting screw rod (42) at described the second towing plate arm (432), this the second towing plate arm pivoting hole (4321) is nested with at snap ring lower port connecting screw rod (42) upper, and is limited by the nut (421) that limits being configured on snap ring lower port connecting screw rod (42), in one end of described transition towing plate (44) and offering a First Transition towing plate pivoting hole (442) corresponding to the position of described snap ring upper port connecting screw rod (41), this First Transition towing plate pivoting hole (442) is nested with upper at snap ring upper port connecting screw rod (41) and is limited by the stop nut (411) screwing on snap ring upper port connecting screw rod (41), at the other end of described transition towing plate (44) and offering one second transition towing plate pivoting hole (443) corresponding to the position of described the first towing plate arm bearing pin (4311), this the second transition towing plate pivoting hole (443) is nested with upper at the first towing plate arm bearing pin (4311) and is limited by the restriction nut (43111) screwing on the first towing plate arm bearing pin (4311).

9. according to the blind plate integral locking formula natural gas filter described in claim 1 or 8, it is characterized in that the shape of described towing plate (43) is a font; The shape of described transition towing plate (44) is L font.

10. blind plate integral locking formula natural gas filter according to claim 1, is characterized in that the length in described lock dog chamber (25) and width are to adapt with length and the width of described lock dog (46).