CN210196528U - Valve body welding type filtering ball valve - Google Patents

Abstract

The utility model discloses a ball valve is filtered to valve body welded type, which comprises a valve body, the valve body includes left lid and right lid that welded fastening is in the same place, welded fastening has left communicating pipe on the lid of a left side, welded fastening has right communicating pipe on the lid of the right side, install the case between left side lid and the right lid, all open on left communicating pipe and the right communicating pipe lateral part and have the circle mounting groove, two circle mounting groove departments all peg graft there is the disk seat, install the sealing washer on the disk seat, the lateral part of disk seat is equipped with and is used for pressing the disk seat to remove and make the sealing washer compress tightly the pressure on the case sphere and move the spring, the runner internal fixation who holds up the case encloses, be fixed with the filter screen on the support ring, it is connected with and drives case pivoted. The utility model discloses structural design is ingenious, reasonable, and the concatenation welding through the valve body is in the same place, can effective reduce cost to utilize the impurity in the filter screen can effective filtering medium, be worth popularizing and applying.

Description

Valve body welding type filtering ball valve

Technical Field

The utility model relates to a valve, especially a ball valve is filtered to valve body welding formula.

Background

The existing valves are cast and molded by adopting a valve body, then the valve core is installed in the valve body to be operated, because the casting can generate great pollution, the cost of a casting part is high, the installation difficulty of the valve core is also great, the cost control of the ball valve is not facilitated, and for a medium containing impurities, the medium is directly transmitted without being filtered, the service life of the ball valve can be influenced, particularly, the influence on the spherical surface of the valve core is great, the sealing performance of the valve core can be directly influenced, and the performance of the ball valve is reduced.

The Chinese invention patent CN201910193775.8 discloses a high temperature resistant four-way ball valve, which adopts the form of integral casting of a valve body, has no filtering function, increases the cost and increases the assembly difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve above-mentioned prior art's shortcoming, provide a ball valve is filtered to easy to assemble, with low costs and have filtering capability's valve body welding formula, satisfied the demand that manufacturing enterprise is efficient, with low costs, to environmental pollution is few.

The utility model provides a technical scheme that its technical problem adopted: the welded type filtering ball valve comprises a valve body, the valve body comprises a left cover body and a right cover body which are welded and fixed together, a left communicating pipe communicated with a cavity of the left cover body is welded and fixed on the left cover body, a right communicating pipe communicated with the cavity of the right cover body is welded and fixed on the right cover body, a valve core is installed between the left cover body and the right cover body, ring-shaped mounting grooves are formed in the lateral parts of the left communicating pipe and the right communicating pipe, valve seats are inserted in the two ring-shaped mounting grooves, sealing rings are installed on the valve seats, the lateral parts of the valve seats are provided with pressing springs used for pressing the valve seats to move and enabling the sealing rings to be tightly pressed on the spherical surfaces of the valve cores, a filter screen is fixed on the supporting rings, a valve rod driving the valve core to rotate. The left cover body and the right cover body are formed by high-pressure pressing without adopting castings, and the left communicating pipe and the right communicating pipe are formed by pipe body lathing, so that the castings are not adopted, the pollution to the environment is reduced, and the cost is greatly reduced; the valve seat and the sealing ring have the functions of sealing the spherical surface of the valve core; the pressing spring has the function of pressing the valve seat, so that when the sealing ring is abraded by a small amount, the position of the sealing ring can be compensated, the service life of the sealing ring is prolonged, and the service life of the ball valve is prolonged; the support ring and the filter screen are used for filtering media, so that the service life of the valve is prolonged, the media conveyed to a destination are clean after being filtered, and the use of equipment at a conveying place is facilitated; the valve rod and the driving rod are used for driving the valve core to rotate easily.

Further perfect, all opened horizontal jack on two disk seats, horizontal jack department is pegged graft and is had the circle inserted block, the sealing washer installation is fixed on the circle inserted block, the lateral part of valve body is fixed with the intubate, intubate female connection has first screw thread piece, the outer end of first screw thread piece is opened there is the hexagon socket head cap recess, it has the briquetting to peg graft in the intubate, the outer end of briquetting rotates and is connected with the depression bar of pressing in circle inserted block outer end department, first compression spring installs between first screw thread piece and briquetting, the cavity of left communicating pipe and right communicating pipe all locates to be equipped with the clamping ring, the one end of two clamping rings is fixed respectively in left communicating pipe and right communicating pipe department through the fastener, the other end of two clamping rings is fixed respectively in two disk seats. The transverse insertion holes and the ring-shaped insertion blocks have the function that the sealing ring can be arranged at the ring-shaped insertion blocks, so that the sealing ring which is abraded and damaged can be conveniently replaced; the insertion pipe, the first threaded block, the inner hexagonal groove, the pressing block and the pressing rod have the effects that the pressure of the pressing spring can be adjusted, so that the movable ring-shaped insertion block can be pressed by the pressing rod conveniently, the pressure of the sealing ring pressed on the spherical surface of the valve core is adapted to, and the sealing performance of the sealing ring on the spherical surface of the valve core is adjusted; the pressure lever is connected to the pressure block in a rotating mode and has the effects that the pressure lever presses the outer end of the ring-shaped insert block and enables the ring-shaped insert block to move, and because the ring-shaped insert block moves transversely, one end of the pressure lever is required to be a rotating end, so that the pressure lever can be ensured to rotate and continuously press the ring-shaped insert block when the pressure lever presses the ring-shaped insert block to move; the pressing ring has the advantages that the transverse insertion hole penetrates through the whole valve seat, so that the valve seat is required to be supported by the pressing ring in order to ensure that the valve seat separated by the transverse insertion hole is not separated, the sealing performance of the valve seat area can be realized, and the medium is prevented from leaking through the insertion pipe; the side part of the valve body is fixed with a pair of oppositely arranged ring-shaped insertion blocks, an insertion pipe, a first thread block, a pressing rod, a second thread block, a pull ring, a pull rope and a threaded hole, and the main purpose is to press or drive the ring-shaped insertion blocks to ensure that the stress is more balanced; the outer profile surface and the interior profile surface of circle shape inserted block multiplicable self-lubricating material layer, the friction between circular inserted block of self-lubricating material layer can greatly reduced and horizontal jack to be convenient for the drive to circular inserted block, tin bronze alloy material or polytetrafluoroethylene material preparation can be chooseed for use to self-lubricating material layer here.

Further perfect, the outer end of horizontal jack is provided with the screw hole, all threaded connection has the second thread piece on the screw hole, and the outer end of second thread piece is provided with the pull ring, is connected between second thread piece and the circle shape inserted block and is fixed with the stay cord. Here screw hole, second thread piece, pull ring, stay cord's effect is that, screws out second thread piece from screw hole department through the pull ring, then utilizes the pull ring pulling stay cord to pull out circle shape inserted block from horizontal jack, and then change the sealing washer of wearing and tearing damage.

Further perfect, open the top of case has the quad slit, the bottom mounting of valve rod have with quad slit complex square column, install the hexagon socket head cap screw of square column fastening on the case, the bottom mounting of valve body has the support cylinder, open the bottom of case has the circular port, has cup jointed the sleeve pipe that self-lubricating material made on the support cylinder, sheathed tube top is the blind end, the circular port is put at the blind end department. The square rod, the square column and the inner hexagon bolt have the effects that the valve core can be longitudinally supported through the valve rod, and the situation that the abrasion of a sealing ring on the valve core side of a supporting column is more serious than that of a non-supporting side due to the gravity action of the valve core of the sealing ring is avoided; the supporting cylinder, the circular hole, the sleeve and the closed end are used for longitudinally supporting the valve core, reducing the abrasion of the sealing ring and prolonging the service life of the sealing ring, so that the service life of the ball valve is prolonged; the self-lubricating material can be made of tin bronze alloy material or polytetrafluoroethylene material.

The utility model discloses profitable effect is: the utility model discloses structural design is ingenious, it is reasonable, utilize left lid, right lid, left communicating pipe, the mode that welded fastening is in the same place is assembled to right communicating pipe, only need left lid, right lid is pressure type spare, left communicating pipe, right communicating pipe is lathe work's pipe fitting just can process the valve body, need not the whole cast part just can accomplish valve body processing, not only greatly increased efficiency and reduction in production cost, and equipment ball valve convenience also more, high efficiency, and increase the filter screen on the case, can filter debris in the medium, make the cleaner transport of the medium that filters, be worth popularizing and applying.

Drawings

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

FIG. 2 is an enlarged view of a portion of the area A of FIG. 1;

FIG. 3 is a partial enlarged view of the area B of FIG. 1;

FIG. 4 is a schematic cross-sectional view of C-C of FIG. 1.

Description of reference numerals: the valve comprises a valve body 1, a left cover body 1-1, a right cover body 1-2, a left communicating pipe 1-3, a right communicating pipe 1-4, a ring-shaped mounting groove 1-5, a valve core 2, a support ring 2-1, a square hole 2-2, a valve seat 3, a transverse insertion hole 3-1, a threaded hole 3-1a, a self-lubricating material layer 3-2, a sealing ring 4, a pressing spring 5, a filter screen 6, a valve rod 7, a square column 7-1, a driving rod 8, a ring-shaped insertion block 9, an insertion pipe 10, a first thread block 11, a pressing block 12, a pressing rod 13, a second thread block 14, a pull ring 15, a pull rope 16, an inner hexagon bolt 17, a support cylinder 18, a sleeve 19, a closed end 19-1 and.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the welded filtering ball valve comprises a valve body 1, wherein the valve body 1 comprises a left cover body 1-1 and a right cover body 1-2 which are welded and fixed together, a left communicating pipe 1-3 communicated with a cavity of the left cover body 1-1 is welded and fixed on the left cover body 1-1, a right communicating pipe 1-4 communicated with a cavity of the right cover body 1-2 is welded and fixed on the right cover body 1-2, a valve core 2 is arranged between the left cover body 1-1 and the right cover body 1-2, the side parts of the left communicating pipe 1-3 and the right communicating pipe 1-4 are respectively provided with a ring-shaped mounting groove 1-5, a valve seat 3 is inserted in the two ring-shaped mounting grooves 1-5, a sealing ring 4 is arranged on the valve seat 3, the side part of the valve seat 3 is provided with a pressing spring 5 used for pressing the valve seat 3 to move and enabling, a supporting ring 2-1 is fixed in a flow passage of the valve core 2, a filter screen 6 is fixed on the supporting ring 2-1, a valve rod 7 which drives the valve core 2 to rotate is rotatably connected on the valve body 1, and a driving rod 8 is fixed at the top end of the valve rod 7.

The two valve seats 3 are respectively provided with a transverse insertion hole 3-1, a ring-shaped insertion block 9 is inserted into the position of the transverse insertion hole 3-1, the sealing ring 4 is fixedly installed on the ring-shaped insertion block 9, the side part of the valve body 1 is fixedly provided with an insertion pipe 10, the insertion pipe 10 is connected with a first threaded block 11 in a threaded manner, the outer end of the first threaded block 11 is provided with an inner hexagonal groove 11-1, the insertion pipe 10 is inserted with a pressing block 12, the outer end of the pressing block 12 is rotatably connected with a pressing rod 13 pressed at the outer end of the ring-shaped insertion block 9, a pressing spring 5 is installed between the first threaded block 11 and the pressing block 12, pressing rings 20 are respectively arranged at the cavities of the left communicating pipe 1-3 and the right communicating pipe 1-4, one ends of the two pressing rings 20 are respectively fixed at the positions of the left communicating pipe 1-3 and the right communicating pipe 1-.

The outer end of the transverse insertion hole 3-1 is provided with a threaded hole 3-1a, the threaded hole 3-1a is in threaded connection with a second thread block 14, the outer end of the second thread block 14 is provided with a pull ring 15, and a pull rope 16 is fixedly connected between the second thread block 14 and the ring-shaped insertion block 9.

The top end of the valve core 2 is provided with a square hole 2-2, the bottom end of the valve rod 7 is fixedly provided with a square column 7-1 matched with the square hole 2-2, the valve core 2 is provided with an inner hexagon bolt 17 for fastening the square column 7-1 on the valve core 2, the bottom end of the valve body 1 is fixedly provided with a supporting cylinder 18, the bottom end of the valve core 2 is provided with a circular hole 2-3, the supporting cylinder 18 is sleeved with a sleeve 19 made of a self-lubricating material, the top end of the sleeve 19 is a closed end 19-1, and the circular hole 2-3 is placed at the closed end 19-1.

The working principle of the utility model is that firstly, the left communicating pipe 1-3 is welded and fixed on the left cover body 1-1, then the right communicating pipe 1-4 is welded and fixed on the right cover body 1-2, and when the valve core 2 is placed between the left cover body 1-1 and the right cover body 1-2, the left cover body 1-1 and the right cover body 1-2 are folded and welded and fixed together, thereby facilitating the installation and fixation of the ball valve; if need change the sealing washer of wearing and tearing, only need twist out first screw thread piece 11 through the allen key, then, take out pressure spring 5, briquetting 12 and depression bar 13 from intubate 10 to make the depression bar 13 contact the pressure of circle shape inserted block 9 move, then demolish clamping ring 20, then, utilize pull ring 15 to twist second screw thread piece 14 and break away from screw hole 3-1a, immediately, utilize pull ring 15 to stimulate stay cord 16 and pull out circle shape inserted block 9 from horizontal jack 3-1, thereby change damaged sealing washer 4, thereby greatly increased ball valve's life, be worth popularizing and applying.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (4)

1. The utility model provides a ball valve is filtered to valve body welding formula, includes valve body (1), characterized by: the valve body (1) comprises a left cover body (1-1) and a right cover body (1-2) which are welded and fixed together, a left communicating pipe (1-3) communicated with a cavity of the left cover body (1-1) is welded and fixed on the left cover body (1-1), a right communicating pipe (1-4) communicated with the cavity of the right cover body (1-2) is welded and fixed on the right cover body (1-2), a valve core (2) is installed between the left cover body (1-1) and the right cover body (1-2), ring-shaped installation grooves (1-5) are formed in the side portions of the left communicating pipe (1-3) and the right communicating pipe (1-4), a valve seat (3) is inserted in the two ring-shaped installation grooves (1-5), a sealing ring (4) is installed on the valve seat (3), and the side portion of the valve seat (3) is provided with a valve seat (3) which is used for pressing the valve seat (3) to move and enabling ) The pressure-driven valve is characterized in that a pressure-driven spring (5) is arranged on the spherical surface, a support ring (2-1) is fixed in a flow channel of the valve core (2), a filter screen (6) is fixed on the support ring (2-1), a valve rod (7) which drives the valve core (2) to rotate is connected to the valve body (1) in a rotating mode, and a driving rod (8) is fixed at the top end of the valve rod (7).

2. The welded valve body filtering ball valve of claim 1, further comprising: the two valve seats (3) are respectively provided with a transverse insertion hole (3-1), a ring-shaped insertion block (9) is inserted into the transverse insertion holes (3-1), the sealing ring (4) is fixedly installed on the ring-shaped insertion block (9), an insertion pipe (10) is fixed on the side portion of the valve body (1), a first threaded block (11) is connected with the insertion pipe (10) in an internal thread mode, an inner hexagonal groove (11-1) is formed in the outer end of the first threaded block (11), a pressing block (12) is inserted into the insertion pipe (10), a pressing rod (13) pressed at the outer end of the ring-shaped insertion block (9) is rotatably connected to the outer end of the pressing block (12), the pressing spring (5) is installed between the first threaded block (11) and the pressing block (12), and pressing rings (20) are arranged at the cavities of the left communicating pipe (1-3) and the right communicating pipe (1-4), one ends of the two pressing rings (20) are respectively fixed at the left communicating pipe (1-3) and the right communicating pipe (1-4) through fasteners, and the other ends of the two pressing rings (20) are respectively fixed at the two valve seats (3) through fasteners.

3. The welded valve body filtering ball valve of claim 2, further comprising: the outer end of the transverse insertion hole (3-1) is provided with a threaded hole (3-1a), the threaded hole (3-1a) is in threaded connection with a second threaded block (14), the outer end of the second threaded block (14) is provided with a pull ring (15), and a pull rope (16) is fixedly connected between the second threaded block (14) and the ring-shaped insertion block (9).

4. A welded valve body filtering ball valve according to claim 1, 2 or 3, wherein: the improved valve is characterized in that a square hole (2-2) is formed in the top end of the valve core (2), a square column (7-1) matched with the square hole (2-2) is fixed at the bottom end of the valve rod (7), an inner hexagonal bolt (17) for fastening the square column (7-1) on the valve core (2) is installed on the valve core (2), a supporting cylinder (18) is fixed at the bottom end of the valve body (1), a circular hole (2-3) is formed in the bottom end of the valve core (2), a sleeve (19) made of a self-lubricating material is sleeved on the supporting cylinder (18), the top end of the sleeve (19) is a closed end (19-1), and the circular hole (2-3) is placed at the closed end (19-1).

Images