CN213420036U

CN213420036U - High-strength machining-free powder metallurgy valve seat

Info

Publication number: CN213420036U
Application number: CN202022339131.6U
Authority: CN
Inventors: 乐雪君
Original assignee: Ningbo Lianming Powder Metallurgy Co ltd
Current assignee: Ningbo Lianming Powder Metallurgy Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-11
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a processing powder metallurgy disk seat is exempted from to high strength, concretely relates to disk seat technical field, including disk seat main part, valve body and reinforcing mechanism, disk seat main part outer end is equipped with fastening device, fastening device includes a plurality of ballast rooms, the inside piston that is equipped with of ballast room, the fixed first sealed pad that is equipped with in piston bottom, the inside spring that is equipped with of ballast room, the through-hole has been seted up to the ballast room bottom, the fixed pull rod that is equipped with of spring one end. The utility model discloses a set up fastening device, when the inside water pressure of disk seat main part is great, during rivers passed through the connecting tube surge income water ballast, water pressure promoted the piston and removed for the spring is elongated, further stimulates disk seat main part outer end, makes disk seat main part and valve body be connected closely, utilizes the taut disk seat main part of pressure and the valve body of water, and the pulling force changes along with water pressure changes, avoids water pressure when too big, and the disk seat main part is connected with the valve body and is not closely caused the valve to reveal.

Description

High-strength machining-free powder metallurgy valve seat

Technical Field

The embodiment of the utility model provides a relate to disk seat technical field, concretely relates to high strength exempts from to process powder metallurgy disk seat.

Background

Powder metallurgy is a process technology for preparing metal powder or taking the metal powder as a raw material to manufacture metal materials, composite materials and various products through forming and sintering, has a series of advantages of remarkable energy conservation, material saving, excellent performance, high product precision, good stability and the like, and is very suitable for mass production.

The powder metallurgy technology can be used for manufacturing a plurality of metal parts which are not convenient to manufacture by a traditional method with complex structures, such as bearings, valve seats and the like, the valve seats are detachable face parts in the valves and are used for supporting the fully closed positions of the valve cores and forming sealing pairs, the traditional valve seats and the valve bodies are simply connected through bolts, and the phenomenon that the connection between the valve seats and the valve bodies is not tight can occur when the water pressure in the valves is high.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a high-strength processing-free powder metallurgy valve seat, a water pressure cabin is fixed with a fixed pipe at the outer end of a valve body by arranging a fastening mechanism, then the water pressure cabin is communicated with a valve seat main body by a connecting pipe, when the water pressure in the valve seat main body is larger, water flow rushes into the water pressure cabin through the connecting pipe, so that the water pressure in the water pressure cabin is equal to the water pressure in the valve seat main body, the water pressure pushes the piston to move, the spring is stretched, the elastic force of the spring pulls the pull rod to further pull the outer end of the valve seat main body, so that the valve seat main body is tightly connected with the valve body, the valve seat main body and the valve body are tensioned by the pressure of water, the tension changes along with the change of water pressure, the problem that the valve is leaked due to the fact that the valve seat main body is not tightly connected with the valve body when the water pressure is too high is avoided, the problem of among the prior art valve seat and valve body simply pass through bolted connection and probably appear valve seat and valve body and be connected untight phenomenon when the inside water pressure of valve is great is solved.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a high-strength processing-free powder metallurgy valve seat comprises a valve seat main body, a valve body and a reinforcing mechanism, wherein the valve body is arranged at the outer end of the valve seat main body;

the fastening mechanism comprises a plurality of water pressure cabins, the water pressure cabins are arranged on the outer side of the valve seat main body, a piston is arranged in each water pressure cabin, the outer end of the piston is contacted with the inner wall of the water pressure cabin, a first sealing gasket is fixedly arranged at the bottom end of the piston, a spring is arranged in the hydraulic pressure cabin, the spring is fixedly arranged at the bottom end of the piston, a through hole is arranged at the bottom end of the hydraulic pressure cabin, one end of the spring is fixedly provided with a pull rod, one end of the pull rod extends to the outside of the water pressure cabin through the through hole and is fixedly connected with the outer end of the valve seat main body, two sliding grooves are arranged on the inner wall of the water pressure cabin, the sliding grooves are arranged on two sides of the piston, sliding blocks are arranged inside the sliding grooves, the sliding block is fixedly arranged at the outer end of the piston, the top end of the sliding block is fixedly provided with a second sealing gasket, the outer end of the second sealing gasket is contacted with the inner wall of the sliding chute, and one side of the water pressure cabin is fixedly provided with a connecting pipe, and one end of the connecting pipe extends into the valve seat main body and is fixedly connected with the valve seat main body.

Further, the reinforcing mechanism comprises a plurality of reinforcing rods, and the reinforcing rods are embedded in the valve seat main body.

Furthermore, a rubber pad is fixedly arranged on the inner wall of the valve seat main body.

Furthermore, the outer end of the valve body is fixedly provided with a plurality of fixed pipes, the water pressure cabin is arranged in the fixed pipes and is in threaded connection with the fixed pipes, and one end of the water pressure cabin extends to the tops of the fixed pipes.

Further, both ends of the valve seat main body are provided with bolts, and both ends of the valve seat main body are connected with both ends of the valve body through bolts.

Further, a sealing ring is arranged inside the fixing pipe, the sealing ring is fixedly arranged at the bottom end of the water pressure cabin, and the inner side of the sealing ring is in contact with the outer end of the pull rod.

The embodiment of the utility model provides a have following advantage:

the utility model fixes the water pressure cabin and the fixed pipe at the outer end of the valve body by arranging the fastening mechanism, and then uses the connecting pipe to connect the water pressure cabin and the valve seat main body, when the water pressure in the valve seat main body is larger, water flow rushes into the water pressure cabin through the connecting pipe, so that the water pressure in the water pressure cabin is equal to the water pressure in the valve seat main body, the water pressure pushes the piston to move, the spring is stretched, the elastic force of the spring pulls the pull rod to further pull the outer end of the valve seat main body, so that the valve seat main body is tightly connected with the valve body, the valve seat main body and the valve body are tensioned by the pressure of water, the tension changes along with the change of water pressure, the problem that the valve is leaked due to the fact that the valve seat main body is not tightly connected with the valve body when the water pressure is too high is avoided, compared with the prior art, utilize water pressure taut between with disk seat main part and the valve body, water pressure is big more, connects inseparabler more, when avoiding appearing water pressure too big, disk seat main part and valve body are connected not tightly and are caused the valve to reveal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a front view provided by the present invention;

fig. 2 is a cross-sectional view provided by the present invention;

fig. 3 is a cross-sectional view of a fastening mechanism provided by the present invention;

FIG. 4 is an enlarged view of the portion A in FIG. 3 according to the present invention;

fig. 5 is a sectional view of the valve seat main body provided by the present invention;

in the figure: 1 valve seat main part, 2 rubber pads, 3 connecting pipes, 4 water ballast, 5 valve bodies, 6 fixing pipes, 7 reinforcing rods, 8 sliding grooves, 9 pistons, 10 first sealing gaskets, 11 springs, 12 pull rods, 13 through holes, 14 sealing rings, 15 sliding blocks and 16 second sealing gaskets.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the high-strength processing-free powder metallurgy valve seat comprises a valve seat main body 1, a valve body 5 and a reinforcing mechanism, wherein the valve body 5 is arranged at the outer end of the valve seat main body 1, the reinforcing mechanism is embedded in the valve seat main body 1, and a fastening mechanism is arranged at the outer end of the valve seat main body 1;

the fastening mechanism comprises a plurality of water pressure chambers 4, the water pressure chambers 4 are arranged outside the valve seat main body 1, pistons 9 are arranged inside the water pressure chambers 4, the outer ends of the pistons 9 contact with the inner wall of the water pressure chamber 4, first sealing gaskets 10 are fixedly arranged at the bottom ends of the pistons 9, springs 11 are arranged inside the water pressure chambers 4, the springs 11 are fixedly arranged at the bottom ends of the pistons 9, through holes 13 are formed at the bottom ends of the water pressure chambers 4, pull rods 12 are fixedly arranged at one ends of the springs 11, one ends of the pull rods 12 extend to the outside of the water pressure chambers 4 through the through holes 13 and are fixedly connected with the outer end of the valve seat main body 1, two sliding grooves 8 are formed in the inner wall of the water pressure chambers 4, the sliding grooves 8 are formed in two sides of the pistons 9, sliding blocks 15 are arranged inside the sliding grooves 8, the sliding blocks 15 are fixedly arranged at the outer ends of, the water ballast 4 is fixedly provided with a connecting pipe 3 at one side, and one end of the connecting pipe 3 extends into the valve seat main body 1 and is fixedly connected with the valve seat main body 1.

Further, the reinforcing mechanism comprises a plurality of reinforcing rods 7, the reinforcing rods 7 are embedded in the valve seat main body 1, the valve seat main body 1 is reinforced through the reinforcing rods 7, and the strength of the valve seat main body 1 is improved.

Furthermore, a rubber pad 2 is fixedly arranged on the inner wall of the valve seat main body 1, so that water flow is prevented from corroding the inner wall of the valve seat main body 1.

Further, the outer end of the valve body 5 is fixedly provided with a plurality of fixing pipes 6, the water pressure cabin 4 is arranged inside the fixing pipes 6 and is in threaded connection with the fixing pipes 6, one end of the water pressure cabin 4 extends to the top of the fixing pipes 6, and the water pressure cabin 4 is fixed through the fixing pipes 6.

Further, both ends of the valve seat main body 1 are provided with bolts, and both ends of the valve seat main body 1 are connected with both ends of the valve body 5 through bolts, so that the valve seat main body 1 and the valve body 5 are connected.

Further, a sealing ring 14 is arranged inside the fixed pipe 6, the sealing ring 14 is fixedly arranged at the bottom end of the water pressure cabin 4, the inner side of the sealing ring 14 is contacted with the outer end of the pull rod 12, and the sealing ring 14 is used for improving the sealing performance of the through hole 13.

The implementation scenario is specifically as follows: the valve seat main body 1 is placed at a corresponding position inside the valve body 5, then the water pressure chamber 4 outside the valve seat main body 1 is fixed on the fixing pipe 6 at the outer end of the valve body 5 through threads, two ends of the valve seat main body 1 and the valve body 5 are simply fixed through bolts, water flows inside the valve seat main body 1 in the working process of the valve, a plurality of reinforcing rods 7 are embedded in the inner wall of the valve seat main body 1 to reinforce the valve seat main body 1, the strength of the valve seat main body 1 is improved, when the flow of the water flow inside the valve seat main body 1 is increased, the valve seat main body 1 and the valve body 5 both need to bear larger water pressure, at the moment, under the action of the water pressure, the water inside the valve seat main body 1 flows into the water ballast 4 through the connecting pipe 3, after the water enters the water ballast 4, the water pressure inside the water pressure chamber 4 is equal to the water pressure inside the, the piston 9 is pushed upwards, the piston 9 moves, the slide block 15 at the outer end of the piston 9 is driven to slide upwards along the sliding groove 8, along with the movement of the piston 9, the spring 11 at the bottom end of the piston 9 is stretched, under the elastic force action of the spring 11, the pull rod 12 is pulled upwards, because one end of the pull rod 12 is fixedly connected with the outer end of the valve seat main body 1, the elastic force of the spring 11 enables the pull rod 12 to pull the valve seat main body 1 outwards, so that the connection between the valve seat main body 1 and the valve body 5 at the outer side is tight, the larger the water pressure inside the valve seat main body 1 is, the larger the water pressure inside the water pressure chamber 4 communicated with the valve seat main body is, the larger the pulling force of the spring 11 is, the tighter the connection between the valve seat main body 1 and the valve body 5 is, the water pressure chamber 4 is fixed with the fixing pipe 6 at the, when the water pressure in the valve seat main body 1 is great, rivers through connecting pipe 3 gush into in the water ballast 4, make water ballast 4 equal with the inside water pressure of valve seat main body 1, water pressure promotes piston 9 and removes, make spring 11 elongated, spring 11's elasticity pulling pull rod 12, further stimulate 1 outer end of valve seat main body, make valve seat main body 1 be connected closely with valve body 5, the taut valve seat main body 1 of pressure that utilizes the water and valve body 5, the pulling force changes along with water pressure change, when avoiding water pressure too big, valve seat main body 1 is connected not closely with valve body 5 and is caused the valve to reveal, this embodiment has specifically solved among the prior art problem that the phenomenon that the valve seat is connected not closely with the valve body can appear through bolted connection in the inside water pressure of valve when great.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a processing powder metallurgy disk seat is exempted from to high strength, includes disk seat main part (1), valve body (5) and strengthening mechanism, establish in disk seat main part (1) outer end valve body (5), strengthening mechanism inlays inside disk seat main part (1), its characterized in that: the outer end of the valve seat main body (1) is provided with a fastening mechanism;

the fastening mechanism comprises a plurality of water pressure chambers (4), the water pressure chambers (4) are arranged on the outer side of the valve seat main body (1), pistons (9) are arranged inside the water pressure chambers (4), the outer ends of the pistons (9) are in contact with the inner wall of the water pressure chambers (4), first sealing gaskets (10) are arranged at the bottom ends of the pistons (9), springs (11) are arranged inside the water pressure chambers (4), the springs (11) are fixedly arranged at the bottom ends of the pistons (9), through holes (13) are formed at the bottom ends of the water pressure chambers (4), a pull rod (12) is fixedly arranged at one end of each spring (11), one end of each pull rod (12) extends to the outside of the water pressure chamber (4) through the through holes (13) and is fixedly connected with the outer end of the valve seat main body (1), two sliding grooves (8) are formed in the inner wall of the water pressure chambers (4), the sliding grooves (8) are formed in two, slider (15) are fixed to be established in piston (9) outer end, slider (15) top is fixed to be equipped with the sealed pad of second (16), the sealed pad of second (16) outer end contacts with spout (8) inner wall, water ballast (4) one side is fixed and is equipped with connecting pipe (3), connecting pipe (3) one end extend to valve seat main part (1) inside and with valve seat main part (1) fixed connection.

2. A high strength, process-free powder metallurgy valve seat according to claim 1, wherein: the reinforcing mechanism comprises a plurality of reinforcing rods (7), and the reinforcing rods (7) are embedded in the valve seat main body (1).

3. A high strength, process-free powder metallurgy valve seat according to claim 1, wherein: and a rubber pad (2) is fixedly arranged on the inner wall of the valve seat main body (1).

4. A high strength, process-free powder metallurgy valve seat according to claim 1, wherein: the fixed a plurality of fixed pipes (6) that are equipped with of valve body (5) outer end, water ballast (4) are established in fixed pipe (6) inside and pass through threaded connection with fixed pipe (6), water ballast (4) one end extends to fixed pipe (6) top.

5. A high strength, process-free powder metallurgy valve seat according to claim 1, wherein: both ends of the valve seat main body (1) are provided with bolts, and both ends of the valve seat main body (1) are connected with both ends of the valve body (5) through bolts.

6. The high strength, process-free powder metallurgy valve seat according to claim 4, wherein: the inside sealing washer (14) that is equipped with of fixed pipe (6), sealing washer (14) are fixed to be established in ballast (4) bottom, sealing washer (14) inboard contacts with pull rod (12) outer end.