CN218440841U - Interlocking safety valve capable of preventing external force vibration - Google Patents

Abstract

The utility model discloses a prevent external force vibration's interlocking safety valve, include: the inlet pipeline is welded and fixed at the bottom of the valve body, the pressure relief pipeline is fixedly connected to the right end of the valve body, the adjusting pipeline is correspondingly arranged right above the inlet pipeline, and meanwhile the adjusting pipeline is fixedly connected with the valve body; further comprising: the protective cover is fixedly arranged at the top of the adjusting pipeline through bolts, spring rods are nested in the protective cover and the adjusting pipeline at a vertical angle, and a disc-shaped connecting disc is welded at the bottom ends of the spring rods; and the support post is fixedly connected to the center of the bottom side surface of the connecting disc. This prevent interlocking safety valve of external force vibration can both accurately reset when can keeping the valve clack of valve to open and close, can avoid simultaneously shaking the problem that can't accurately close and reset because of external force vibrations lead to the valve clack for the switch of valve clack all is in spacing locking state.

Description

Interlocking safety valve capable of preventing external force vibration

Technical Field

The utility model relates to the technical field of valves, specifically be an interlocking safety valve who prevents external force vibration.

Background

The safety valve is mainly used for boilers, pressure vessels and pipelines, when the medium pressure in pipeline equipment such as boilers is too high and exceeds a specified pressure value, the medium pushes up the valve clack and releases the pressure in a mode of discharging the medium to the pressure relief pipe, so that the medium pressure in the equipment such as the boilers is kept within a normal range, and the safety valve plays a role in protecting personal safety and normal operation of the equipment.

In the prior art, chinese patent CN210510408U discloses a safety valve, which includes a valve body having an air inlet and a pressure relief port, a valve rod, a valve cap, a sealing gasket, and an elastic member, wherein the valve cap is provided with a step to form a connection section and an extension section, the valve rod is movably disposed in the valve body, the connection section of the valve cap is connected to the valve body, the elastic member is sleeved on the valve rod, the sealing gasket is disposed between the head of the valve rod and the air inlet, two ends of the elastic member respectively abut against the head of the valve rod and the step of the valve cap, so as to provide a reset force for the sealing gasket to seal the air inlet under normal pressure, the valve rod moves in the extension section of the valve cap under overpressure condition, the extension section provides protection for the movement of the valve rod, so that the valve rod is not interfered by an external object in the extension process;

although the structure can limit the movement stroke of the valve rod by utilizing the extension section, the distance between the extension section and the valve rod is short, the protection range for preventing external force vibration is limited, and the valve rod at the upper end of the valve clack can be limited and protected, so that the vibration resistance of the valve clack is limited.

In addition, in the prior art, a safety valve capable of automatically resetting is disclosed in chinese patent CN216590123U, which includes a valve body and a valve cover disposed on the valve body, a valve rod is disposed in the valve cover, spring discs are disposed on the valve rod at intervals, a first spring is disposed between the spring discs, a guide sleeve is disposed at a position where the top of the valve body is communicated with the valve cover, a valve flap is movably disposed in the guide sleeve, the valve flap is connected with a lower end portion of the valve rod, an inlet flow passage is disposed in the valve body, the valve flap is disposed at an outlet end of the inlet flow passage, a pressure relief opening is disposed on a side surface of the valve body, and a detection assembly for detecting whether the valve flap is tightly attached to the outlet end of the inlet flow passage is disposed on the valve body;

although above-mentioned structure can make operating personnel can audio-visually know whether the valve clack in this relief valve and inlet flow channel's exit end in close contact with through determine module, and then can maintain or change this relief valve, above-mentioned relief valve still exists because of the crooked problem of external force vibration leads to the valve clack to need artifical the maintenance, increased the time and the cost that the relief valve maintained, to above-mentioned problem, urgent need carry out the innovative design on original relief valve's basis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent interlocking safety valve of external force vibration to propose the safety valve who has used in solving above-mentioned background art, can't receive under the condition of external force vibration at the valve, keep the valve clack open with the accuracy and the stability of closed condition, and can't keep the state that the valve clack is in inseparable locking when closed, be unfavorable for promoting the problem of safety valve safety in utilization.

In order to achieve the above object, the utility model provides a following technical scheme: an interlocking safety valve that resists vibration from an external force, comprising:

the inlet pipeline is welded and fixed at the bottom of the valve body, the pressure relief pipeline is fixedly connected to the right end of the valve body, the adjusting pipeline is correspondingly arranged right above the inlet pipeline, and meanwhile the adjusting pipeline is fixedly connected with the valve body;

further comprising:

the protective cover is fixedly arranged at the top of the adjusting pipeline through bolts, spring rods are nested in the protective cover and the adjusting pipeline at a vertical angle, and a disc-shaped connecting disc is welded at the bottom ends of the spring rods;

the pillar is fixedly connected to the center of the bottom side face of the connecting disc, a cylindrical valve clack is fixedly connected to the bottom end of the pillar, and the valve clack and the valve body form an elastic lifting structure through a spring rod.

The setting of above-mentioned structure makes safety valve's valve clack can utilize the elasticity compression of spring and freely go up and down, and then realizes the automatic function of opening and closed valve, protects compactness and the fastness of being connected between valve clack and the spring beam simultaneously for the lift of valve clack removes difficult crooked rocking.

Preferably, the top of entry pipeline is the sunken trough-shaped structure with the junction of valve body, and the inner wall diameter of entry pipeline is less than the diameter of valve clack to the spacing groove has still been seted up with vertical angle to the pipe wall inside of entry pipeline, and the setting up of above-mentioned structure makes the valve clack when closed, can accurate block in the junction of entry pipeline with the valve body, and keeps the seal in gap between valve clack and the entry pipeline, thereby avoids appearing the condition of medium leakage.

Preferably, the number of the limiting grooves is 4, the limiting grooves and the valve body form a communicating structure, the length of each limiting groove is larger than the diameter of the inner wall of the valve body, the limiting insertion rods inserted into the limiting grooves can firmly support and limit the moving range of the valve clack, and the valve clack can also keep the limiting insertion rods firmly inserted into the limiting insertion grooves when being opened to the maximum degree.

Preferably, the bottom of adjusting the pipeline still fixedly is provided with the spacing platform that keeps off of annular with the linking department of valve body, and the inner wall diameter of adjusting the pipeline equals with the diameter that links up the dish to the spacing inner ring diameter that keeps off the platform is less than the diameter that links up the dish, and the setting up of above-mentioned structure makes the scope of falling of linking up the dish in adjusting the pipeline receive spacing keeping off stopping of platform, can avoid the valve clack to close the extension spring pole repeatedly and cause the spring lax, and make the closure of valve clack reset more accurate, can the accurate interlocking restriction that keeps valve clack and entry pipeline.

Preferably, the inside of safety cover is still fixed and is provided with spacing pipe, and the top nested connection of spacing pipe and spring beam to the inner wall of spacing pipe is connected with the spring laminating of spring beam, and the setting up of above-mentioned structure makes the telescopic movement of spring beam receive the restriction of spacing pipe and blocks, can avoid the problem that the spring beam is crooked to rock after being compressed.

Preferably, still the gomphosis is provided with the rubber packing ring on the bottom flank of valve clack, and the outer lane diameter of rubber packing ring is greater than the inner wall diameter of entry pipeline to it is provided with 4 spacing inserted bars still to go back the circumference array on the bottom flank of valve clack, when the setting up of above-mentioned structure made the valve clack closure locking, can utilize the rubber packing ring to promote the closed leakproofness of valve clack, and through the vertical stability of the lift moving route of spacing inserted bar control valve clack.

Preferably, the limiting insertion rod is inserted in and connected with the limiting groove, the length of the limiting insertion rod is equal to that of the limiting groove, and the valve clack can still be limited by the limiting insertion rod to keep a vertical moving direction after being jacked to the maximum range by the discharged medium due to the arrangement of the structure, so that the valve clack can be accurately locked and clamped in the inlet pipeline when falling back and resetting.

Compared with the prior art, the beneficial effects of the utility model are that: this prevent interlocking safety valve of external force vibration can both accurately reset when the valve clack that can keep the valve opens and closes, can avoid leading to the valve clack to rock the problem that can't accurate closure resets because of external force vibrations simultaneously for the switch of valve clack all is in spacing lock-out state, and its concrete content is as follows:

1. the interlocking safety valve for preventing external force vibration has the advantages that the adjusting pipeline and the protective cover are internally provided with the structures of the limiting stop table, the limiting pipe, the spring rod, the connecting disc, the pillar and the valve clack, the valve clack is jacked up through a pressure releasing medium, and the pillar, the connecting disc and the spring rod are pushed to slide together along the vertical direction, so that the spring rod is compressed, when the valve clack drives the spring rod to elastically stretch and retract, the limiting pipe is used for limiting the bending of the spring, and the limiting stop table is used for limiting the fall-back height of the connecting disc, so that the accuracy and stability of the reset and closing of the valve clack are accurately maintained, and the purposes that the safety valve can be automatically and accurately opened, reset and locked are achieved;

2. this prevent external force vibration's interlocking safety valve, be provided with the spacing groove in the inlet pipeline, the valve clack, the structure of rubber packing ring and spacing inserted bar, through the valve clack lift travel in-process, the spacing inserted bar that its bottom is connected is inserted all the time and is closed in the spacing groove, and then restrict the moving direction of valve clack, when the valve clack closure falls back simultaneously, can utilize spacing inserted bar and the vertical direction of connection's of spacing groove restriction accurate control valve plate to reset, make the valve clack be difficult for receiving external force vibration and skew, and utilize the rubber packing ring can strengthen the leakproofness between valve clack and the inlet pipeline, realize that safety valve's valve clack is opened and is closed more accurate and stable function.

Drawings

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

FIG. 2 is a schematic diagram of the explosion three-dimensional structure of the present invention;

FIG. 3 is a schematic diagram of a semi-sectional three-dimensional structure of the valve body of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the connection position of the limiting inserted link and the valve flap;

fig. 5 is a schematic view of the three-dimensional structure of the valve flap in the open state of the present invention.

In the figure: 1. a valve body; 2. an inlet duct; 3. a limiting groove; 4. a pressure relief duct; 5. adjusting the pipeline; 6. a limiting stop table; 7. a protective cover; 8. a limiting pipe; 9. a spring lever; 10. a splice tray; 11. a pillar; 12. a valve flap; 13. a rubber gasket; 14. and a limiting inserted rod.

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 embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an interlocking safety valve that resists vibration from an external force, comprising: the inlet pipeline 2 is welded and fixed at the bottom of the valve body 1, the pressure relief pipeline 4 is fixedly connected at the right end of the valve body 1, the adjusting pipeline 5 is correspondingly arranged right above the inlet pipeline 2, meanwhile, the adjusting pipeline 5 is fixedly connected with the valve body 1, the protective cover 7 is fixedly installed at the top of the adjusting pipeline 5 through bolts, the protective cover 7 and the adjusting pipeline 5 are internally provided with spring rods 9 in a nesting mode at a vertical angle, the bottom end of each spring rod 9 is welded with a disc-shaped connecting disc 10, a support column 11 is fixedly connected to the center of the bottom side face of the connecting disc 10, the bottom end of the support column 11 is fixedly connected with a cylindrical valve flap 12, and the valve flap 12 and the valve body 1 form an elastic lifting structure through the spring rods 9;

when the safety valve is used, firstly, after the medium pressure in the pipeline equipment is too large and exceeds the limit value of the valve, the medium flows upwards from the inlet pipeline 2 of the valve body 1, and then the valve clack 12 closed at the upper end of the inlet pipeline 2 is jacked up, at the moment, the valve clack 12 is jacked up by the medium and moves in the vertical upward direction, the medium is discharged along the pressure relief pipeline 4, after the valve clack 12 is jacked up, the support 11 connected with the top end of the valve clack and the connecting disc 10 push the spring rod 9 to compress in the protective cover 7 together, after the pressure relief of the pipeline equipment is completed, the valve clack 12 automatically falls back and is closed, and meanwhile, the spring rod 9 is elastically reset and stretched, so that the valve clack 12 blocks the inlet pipeline 2 again.

If the safety valve is impacted by violent flow of a pressure relief medium and the valve body 1 is impacted by an external force to generate shaking, the valve clack 12 in the safety valve shakes and deflects, so that the valve clack 12 cannot be accurately closed and reset, and the normal use of a subsequent valve is influenced, the safety valve can keep the lifting movement of the valve clack 12 at a vertical angle all the time, so that the opening and closing of the valve are accurate and stable, specifically, as shown in figures 3, 4 and 5, a limiting inserted rod 14 is inserted into and connected with a limiting groove 3, the length of the limiting inserted rod 14 is equal to that of the limiting groove 3, 4 limiting grooves 3 are arranged in an inner circumferential array of an inlet pipeline 2, the limiting grooves 3 and the valve body 1 form a communicating structure, the length of the limiting groove 3 is greater than the diameter of the inner wall of the valve body 1, after the valve clack 12 is jacked up by the medium, the limiting inserted rod 14 connected with the bottom of the safety valve clack 12 moves upwards along the limiting groove 3, and the lengths of the limiting inserted rod 14 and the limiting groove 3 are greater than the diameter of the valve body 1, so that the valve clack 12 can also keep the valve clack 14 in the limiting inserted rod 14 in the limiting groove 3 after the valve 12 is opened to the maximum range, and the valve 12 can accurately control the valve body to finally and the valve body to slide and the lifting movement of the valve body 12 and the valve can accurately and the limiting groove 12 can be controlled in the original lifting movement range;

after the valve clack 12 is jacked up, the pillar 11, the connecting disc 10 and the spring rod 9 which are fixedly connected to the top of the valve clack 12 are pushed upwards vertically, and the spring rod 9 is easily influenced by external force vibration to change the moving angle in the moving process, so that the spring is inclined and twisted and the valve clack 12 cannot fall back to the original position correctly, specifically, according to the method shown in fig. 1, 2 and 5, an annular limiting blocking table 6 is fixedly arranged at the joint of the bottom end of the adjusting pipeline 5 and the valve body 1, the diameter of the inner wall of the adjusting pipeline 5 is equal to that of the connecting disc 10, the diameter of the inner ring of the limiting blocking table 6 is smaller than that of the connecting disc 10, a limiting pipe 8 is fixedly arranged inside the protective cover 7, the limiting pipe 8 is connected with the top end of the spring rod 9 in an embedded mode, the inner wall of the limiting pipe 8 is connected with the spring of the spring rod 9 in an attached mode, when the spring rod 9 is compressed and stretched, the limiting pipe 8 nested outside the spring can limit the spring rod 9 can limit the moving direction of the spring rod 9, so that the spring can slide along the inner wall of the limiting pipe 8, and when the valve clack 12 is reset, the valve clack 6 can also move downwards, so that the limiting blocking table 12 can accurately block the original position;

after the valve flap 12 is reset and closed, specifically, as shown in fig. 1 and 3, a joint between the top end of the inlet pipeline 2 and the valve body 1 is in a sunken groove-shaped structure, the diameter of the inner wall of the inlet pipeline 2 is smaller than that of the valve flap 12, a limiting groove 3 is further formed in the inner wall of the inlet pipeline 2 at a vertical angle, a rubber gasket 13 is further embedded on the bottom side surface of the valve flap 12, the diameter of the outer ring of the rubber gasket 13 is larger than that of the inner wall of the inlet pipeline 2, 4 limiting insertion rods 14 are further arranged on the bottom side surface of the valve flap 12 in a circumferential array manner, the valve flap 12 is clamped at the top end of the inlet pipeline 2 again under the limitation of the limiting insertion rods 14, and is blocked by the sunken structure, the valve flap 12 cannot continuously slide into the inlet pipeline 2, and the sealing performance of a gap at the inlet pipeline 2 is also enhanced by the rubber gasket 13 at the bottom of the valve flap 12, so that the valve is in a closed state more compact.

The working principle is as follows: when the safety valve is used, as shown in fig. 1-5, firstly, when the valve is opened, a medium jacks up the valve clack 12, and at the moment, the limiting inserted rod 14 at the bottom of the valve vertically slides along the limiting groove 3, so that the valve clack 12 is controlled to stably lift and move from the bottom, and meanwhile, the spring rod 9 at the upper end of the valve clack 12 is limited by the limiting pipe 8 to vertically slide, so that the valve clack 12 can be prevented from being deflected and inclined due to external force vibration, the valve clack 12 can be accurately reset and locked at the original position, and the working principle of the interlocking safety valve for preventing the external force vibration is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (7)

1. The utility model provides a prevent interlocking safety valve of external force vibration, interlocking safety valve comprises valve body (1), entry pipeline (2), pressure release pipeline (4) and regulation pipeline (5), its characterized in that includes: the inlet pipeline (2) is fixedly welded at the bottom of the valve body (1), the pressure relief pipeline (4) is fixedly connected to the right end of the valve body (1), the adjusting pipeline (5) is correspondingly arranged right above the inlet pipeline (2), and meanwhile, the adjusting pipeline (5) is fixedly connected with the valve body (1);

further comprising:

the protective cover (7) is fixedly installed at the top of the adjusting pipeline (5) through bolts, spring rods (9) are nested in the protective cover (7) and the adjusting pipeline (5) at a vertical angle, and disc-shaped connecting discs (10) are welded at the bottom ends of the spring rods (9);

the support column (11) is fixedly connected to the center of the bottom side face of the connecting disc (10), a cylindrical valve clack (12) is fixedly connected to the bottom end of the support column (11), and the valve clack (12) and the valve body (1) form an elastic lifting structure through a spring rod (9).

2. The interlocking safety valve against external force vibration of claim 1, wherein: the top of entry pipeline (2) is sunken formula trough-shaped structure with the junction of valve body (1), and the inner wall diameter of entry pipeline (2) is less than the diameter of valve clack (12) to spacing groove (3) have still been seted up with vertical angle to the pipe wall inside of entry pipeline (2).

3. The interlocking safety valve against external force vibration of claim 2, wherein: the inner circumference array of the limiting groove (3) in the inlet pipeline (2) is provided with 4, the limiting groove (3) and the valve body (1) form a communicating structure, and the length of the limiting groove (3) is larger than the diameter of the inner wall of the valve body (1).

4. The interlocking safety valve against external force vibration as recited in claim 1, wherein: the bottom of adjusting pipeline (5) and the junction of valve body (1) still the fixed annular spacing fender platform (6) that is provided with, and the inner wall diameter of adjusting pipeline (5) equals with the diameter of linking up dish (10) to the inner ring diameter that spacing kept off platform (6) is less than the diameter of linking up dish (10).

5. The interlocking safety valve against external force vibration of claim 1, wherein: the inside of safety cover (7) still fixedly is provided with spacing pipe (8), and the top nested connection of spacing pipe (8) and spring beam (9) to the inner wall of spacing pipe (8) is connected with the spring laminating of spring beam (9).

6. The interlocking safety valve against external force vibration of claim 1, wherein: the bottom side surface of the valve clack (12) is further provided with a rubber gasket (13) in an embedded mode, the diameter of the outer ring of the rubber gasket (13) is larger than that of the inner wall of the inlet pipeline (2), and 4 limiting insertion rods (14) are arranged on the bottom side surface of the valve clack (12) in a circumferential array mode.

7. The interlocking safety valve against external force vibration of claim 6, wherein: the limiting inserted bar (14) is connected with the limiting groove (3) in an inserting mode, and the length of the limiting inserted bar (14) is equal to that of the limiting groove (3).

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