Cast iron valve with sealing structure

Abstract

The utility model discloses a cast iron valve with a sealing structure, which belongs to the technical field of cast iron valves and comprises a valve part, a base is arranged at the bottom of the valve part, a protective shell is arranged at the top of the base, and external pipes and connecting devices are arranged at two ends of the valve part. According to the cast iron valve with the sealing structure, a locking rod is separated from a rotating piece by pushing a push plate, meanwhile, the rotating piece is rotated, a transmission rod is driven to rotate through cooperation of a main bevel gear and a transmission bevel gear, and then through cooperation of an auxiliary bevel gear, the transmission rod drives a lead screw to rotate; and through rotation of the lead screw, the square block horizontally moves and is separated from the protective shell, so that the protective shell is conveniently and rapidly taken down, the valve is effectively prevented from being corroded and polluted by external sundries through mutual cooperation of the protective shell and the base, and the service life of the valve is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cast iron valves, in particular to a cast iron valve with a sealing structure. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves are control components in fluid conveying systems and have functions such as cut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc. according to their materials. Traditional cast iron valves are often exposed to the outside, so they are often contaminated and corroded during use, which greatly reduces the service life of cast iron valves. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a cast iron valve with a sealing structure, which solves the problem that the traditional cast iron valve is easily contaminated and corroded during use, thereby greatly reducing the service life.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cast iron valve with a sealing structure, comprising a valve member, a base is provided at the bottom of the valve member, a protective shell is provided on the top of the base, external pipes and connecting devices are provided at both ends of the valve member, a sealing ring, a sealing gasket and a connecting rod are provided on the external pipe, locking devices are provided on both sides of the base, the locking device comprises a rotating member, and a locking rod and a main bevel gear are provided on the rotating member;

[0005] The locking rod is provided with a push plate and an auxiliary spring, the main bevel gear is provided with a transmission bevel gear, the transmission bevel gear is provided with a conduction rod and a secondary bevel gear, the secondary bevel gear is provided with a transmission rod, both ends of the transmission rod are provided with a screw rod and a square block, and the conduction rod is provided with a locking block.

[0006] As a further solution of the utility model: the locking block is fixedly connected to the top of the base, the locking block is inserted into the protective shell, the rotating piece is inserted into the base, and one end of the rotating piece is fixedly connected to the main bevel gear, the locking rod is slidably connected to the base, the push plate and the auxiliary spring are fixedly connected to the locking rod, and one end of the locking rod passes through the base and is inserted into the rotating piece.

[0007] As a further solution of the utility model: the conduction rod is inserted into the locking block and the base, the transmission bevel gear is fixedly connected to the two ends of the conduction rod, the transmission bevel gear is meshed with the main bevel gear and the auxiliary bevel gear, the transmission rod is inserted into the locking block, and the screw rod is fixedly connected to the two ends of the transmission rod.

[0008] As a further solution of the utility model: the square block is threadedly connected to the screw rod, the square block is slidably connected to the locking block, one end of the square block passes through the locking block and is inserted into the protective shell, the valve member is fixedly connected to the base, the sealing ring is sleeved on the external pipe, and the protective shell is overlapped on the base.

[0009] As a further solution of the utility model: the sealing gasket and the connecting rod are both fixedly connected to the external pipe, and the sealing gasket and the connecting rod are both inserted in the valve member, the connecting device includes a connecting steel wire, both ends of the connecting steel wire are fixedly connected with an inclined block and a main line wheel, the inclined block is slidably connected in the valve member, and one end of the inclined block passes through the valve member and is inserted on the connecting rod, a reset spring is fixedly connected to the inclined block, and the reset spring is sleeved on the connecting steel wire.

[0010] As a further solution of the utility model: a guide wheel is overlapped on the connecting steel wire, a connecting rod and a limit spring are fixedly connected to the main line wheel, the other end of the limit spring is fixedly connected to a toothed rod, the toothed rod is sleeved on one end of the connecting rod, the toothed rod and the connecting rod are both slidably connected to the valve member, a protrusion is fixedly connected to the connecting rod, and the protrusion is slidably connected in the toothed rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The cast iron valve with a sealing structure pushes the push plate to disengage the locking rod from the plug-in connection with the rotating part, and at the same time rotates the rotating part and drives the transmission rod to rotate through the cooperation of the main bevel gear and the transmission bevel gear, and then drives the screw rod to rotate through the cooperation of the secondary bevel gear, and the rotation of the screw rod causes the square block to move horizontally and disengage from the plug-in connection with the protective shell, so that the protective shell is quickly removed, and the mutual cooperation between the protective shell and the base effectively prevents the valve parts from being corroded and contaminated by external debris, thereby greatly improving the service life of the valve parts.

[0013] 2. The cast iron valve with a sealing structure pulls the toothed rod to disengage it from the plug-in connection with the valve member, and then rotates the toothed rod and drives the rotation of the main line wheel through the cooperation of the connecting rod. The rotation of the main line wheel causes the connecting wire to be wound around it, and the inclined block is disengaged from the plug-in connection with the connecting rod through the assistance of the guide wheel, and then the toothed rod is plugged into the valve member through the elastic force of the limit spring, thereby achieving the purpose of quickly removing the external pipe, thereby greatly improving the disassembly efficiency of the cast iron valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the locking device of the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0017] Figure 4 It is a schematic diagram of the connection device of the utility model;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of point B;

[0019] Figure 6 It is a schematic cross-sectional view of the toothed rod of the utility model;

[0020] In the figure: 1. valve member; 2. protective shell; 3. connecting device; 301. linkage wire; 302. guide wheel; 303. reset spring; 304. inclined block; 305. main line wheel; 306. toothed rod; 307. linkage rod; 308. limit spring; 4. sealing ring; 5. external tube; 6. locking device; 601. rotating member; 602. locking rod; 603. push plate; 604. auxiliary spring; 605. locking block; 606. main bevel gear; 607. transmission bevel gear; 608. conduction rod; 609. transmission rod; 610. auxiliary bevel gear; 611. screw rod; 612. square block; 7. base; 8. sealing pad; 9. connecting rod. DETAILED DESCRIPTION

[0021] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0022] like Figure 1-6As shown, the utility model provides a technical solution: a cast iron valve with a sealing structure, including a valve member 1, a base 7 is provided at the bottom of the valve member 1, a protective shell 2 is provided on the top of the base 7, both ends of the valve member 1 are provided with an external pipe 5 and a connecting device 3, a sealing ring 4, a sealing gasket 8 and a connecting rod 9 are provided on the external pipe 5, the sealing gasket 8 and the connecting rod 9 are fixedly connected to the external pipe 5, and the sealing gasket 8 and the connecting rod 9 are plugged into the valve member 1, the connecting device 3 includes a linkage wire 301, both ends of the linkage wire 301 are An inclined block 304 and a main line wheel 305 are fixedly connected, the inclined block 304 is slidably connected in the valve component 1, and one end of the inclined block 304 passes through the valve component 1 and is inserted into the connecting rod 9, a return spring 303 is fixedly connected to the inclined block 304, and the return spring 303 is sleeved on the linkage wire 301; when the connecting rod 9 is inserted into the external tube 5, the connecting rod 9 will squeeze the inclined surface of the inclined block 304 to cause it to shrink, and then the elastic force of the return spring 303 will make the inclined block 304 inserted into the connecting rod 9, thereby achieving the fixation of the external tube 5.

[0023] The connecting wire 301 is overlapped with the guide wheel 302, and the main line wheel 305 is fixedly connected with a connecting rod 307 and a limit spring 308, and the other end of the limit spring 308 is fixedly connected with a toothed rod 306, and the toothed rod 306 is sleeved on one end of the connecting rod 307, and the toothed rod 306 and the connecting rod 307 are both slidably connected to the valve member 1, and a protrusion is fixedly connected to the connecting rod 307, and the protrusion is slidably connected to the toothed rod 306; when it is necessary to remove the external pipe 5, the connecting rod 307 is rotated to make the connecting wire 301 wound around the main line wheel 305, and through the cooperation of the guide wheel 302, the inclined block 304 is pulled out of the connection with the connecting rod 9, and then the elastic force of the limit spring 308 makes the toothed rod 306 plugged into the valve member 1, so that the subsequent staff can remove the external pipe 5.

[0024] The base 7 is provided with a locking device 6 on both sides, and the locking device 6 includes a rotating member 601, a locking rod 602 and a main bevel gear 606 are provided on the rotating member 601, a push plate 603 and an auxiliary spring 604 are provided on the locking rod 602, a transmission bevel gear 607 is provided on the main bevel gear 606, and a transmission rod 608 and a secondary bevel gear 610 are provided on the transmission bevel gear 607. The transmission rod 608 is plugged into the locking block 605 and the base 7, and the transmission bevel gear 607 is fixedly connected. Connected to the two ends of the transmission rod 608, the transmission bevel gear 607 is meshed with the main bevel gear 606 and the secondary bevel gear 610, the transmission rod 609 is inserted in the locking block 605, and the screw rod 611 is fixedly connected to the two ends of the transmission rod 609; the main bevel gear 606 drives the secondary bevel gear 610 to rotate through the cooperation of the transmission rod 608 and the transmission bevel gear 607, and the screw rod 611 rotates with the secondary bevel gear 610 through the cooperation of the transmission rod 609.

[0025] A transmission rod 609 is arranged on the secondary bevel gear 610, and screw rods 611 and square blocks 612 are arranged at both ends of the transmission rod 609. The square block 612 is threadedly connected to the screw rod 611, and the square block 612 is slidably connected to the locking block 605. One end of the square block 612 penetrates the locking block 605 and is plugged into the protective shell 2. The valve member 1 is fixedly connected to the base 7, the sealing ring 4 is sleeved on the external pipe 5, and the protective shell 2 is overlapped on the base 7; the rotation of the screw rod 611 causes the square block 612 to move horizontally, so as to facilitate the subsequent staff to remove the protective shell 2 and fix the protective shell 2.

[0026] A locking block 605 is provided on the conduction rod 608, and the locking block 605 is fixedly connected to the top of the base 7, and the locking block 605 is inserted into the protective shell 2, the rotating piece 601 is inserted into the base 7, and one end of the rotating piece 601 is fixedly connected to the main bevel gear 606, the locking rod 602 is slidably connected to the base 7, the push plate 603 and the auxiliary spring 604 are both fixedly connected to the locking rod 602, and one end of the locking rod 602 passes through the base 7 and is inserted into the rotating piece 601; the protective shell 2 is fixed to the base 7 through the cooperation of the locking block 605 and the square block 612, thereby effectively preventing the valve component 1 from being contaminated by the outside world, thereby greatly improving the service life of the valve component 1.

[0027] The working principle of the utility model is as follows: first, the locking rod 602 is disengaged from the plug-in connection with the rotating member 601, and the rotating member 601 is rotated at the same time to drive the conducting rod 608 to rotate, and then the square block 612 is horizontally moved through the cooperation of the secondary bevel gear 610, and is disengaged from the plug-in connection with the protective shell 2, so that the protective shell 2 is quickly removed, and then the toothed rod 306 is pulled to disengage it from the plug-in connection with the valve member 1, and then the toothed rod 306 is rotated to wind the linkage wire 301 around the main line wheel 305, and with the assistance of the guide wheel 302, the inclined block 304 is disengaged from the plug-in connection with the connecting rod 9, and then the elastic force of the limit spring 308 is used to reinsert the toothed rod 306 into the valve member 1, so as to facilitate the quick removal of the external pipe 5.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A cast iron valve with a sealing structure, comprising a valve member (1), characterized in that: The bottom of the valve member (1) is provided with a base (7), the top of the base (7) is provided with a protective shell (2), both ends of the valve member (1) are provided with external pipes (5) and connecting devices (3), the external pipes (5) are provided with sealing rings (4), sealing gaskets (8) and connecting rods (9), both sides of the base (7) are provided with locking devices (6), the locking devices (6) include a rotating member (601), and the rotating member (601) is provided with a locking rod (602) and a main bevel gear (606); The locking rod (602) is provided with a push plate (603) and an auxiliary spring (604), the main bevel gear (606) is provided with a transmission bevel gear (607), the transmission bevel gear (607) is provided with a conduction rod (608) and a secondary bevel gear (610), the secondary bevel gear (610) is provided with a transmission rod (609), both ends of the transmission rod (609) are provided with a screw rod (611) and a square block (612), and the conduction rod (608) is provided with a locking block (605).

2. A cast iron valve with a sealing structure according to claim 1, characterized in that: The locking block (605) is fixedly connected to the top of the base (7), the locking block (605) is inserted into the protective shell (2), the rotating member (601) is inserted into the base (7), and one end of the rotating member (601) is fixedly connected to the main bevel gear (606), the locking rod (602) is slidably connected to the base (7), the push plate (603) and the auxiliary spring (604) are both fixedly connected to the locking rod (602), and one end of the locking rod (602) passes through the base (7) and is inserted into the rotating member (601).

3. The cast iron valve with a sealing structure according to claim 2, characterized in that: The transmission rod (608) is inserted into the locking block (605) and the base (7), the transmission bevel gear (607) is fixedly connected to the two ends of the transmission rod (608), the transmission bevel gear (607) is meshed with the main bevel gear (606) and the auxiliary bevel gear (610), the transmission rod (609) is inserted into the locking block (605), and the screw rod (611) is fixedly connected to the two ends of the transmission rod (609).

4. The cast iron valve with a sealing structure according to claim 3, characterized in that: The square block (612) is threadedly connected to the screw rod (611), the square block (612) is slidably connected to the locking block (605), one end of the square block (612) passes through the locking block (605) and is plugged into the protective shell (2), the valve component (1) is fixedly connected to the base (7), the sealing ring (4) is sleeved on the external pipe (5), and the protective shell (2) is overlapped on the base (7).

5. The cast iron valve with a sealing structure according to claim 4, characterized in that: The sealing gasket (8) and the connecting rod (9) are both fixedly connected to the external pipe (5), and the sealing gasket (8) and the connecting rod (9) are both inserted into the valve member (1). The connecting device (3) comprises a linkage wire (301), and both ends of the linkage wire (301) are fixedly connected to an inclined block (304) and a main line wheel (305). The inclined block (304) is slidably connected to the valve member (1), and one end of the inclined block (304) passes through the valve member (1) and is inserted into the connecting rod (9). A return spring (303) is fixedly connected to the inclined block (304), and the return spring (303) is sleeved on the linkage wire (301).

6. The cast iron valve with a sealing structure according to claim 5, characterized in that: The connecting steel wire (301) is overlapped with a guide wheel (302), the main line wheel (305) is fixedly connected with a connecting rod (307) and a limit spring (308), the other end of the limit spring (308) is fixedly connected with a toothed rod (306), the toothed rod (306) is sleeved on one end of the connecting rod (307), the toothed rod (306) and the connecting rod (307) are both slidably connected to the valve member (1), the connecting rod (307) is fixedly connected with a protrusion, and the protrusion is slidably connected to the toothed rod (306).

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