CN216668923U

CN216668923U - Corrosion-resistant special tuning fork liquid level switch

Info

Publication number: CN216668923U
Application number: CN202123006121.1U
Authority: CN
Inventors: 赵国成
Original assignee: Shanghai Echo Msl Instruments Co ltd
Current assignee: Shanghai Echo Msl Instruments Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-06-03
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses a corrosion-resistant special tuning fork liquid level switch, which relates to the field of industrial process control and comprises the following components: a housing; the high-temperature radiating pipe is fixedly connected to the bottom end of the shell and is loosely sleeved with the flange. According to the utility model, the auxiliary mechanism is arranged, the extension pipe is arranged in the connecting shell through the positioning block and is positioned at the bottom end of the high-temperature radiating pipe, the fixing hole formed in the inner wall of the positioning block is aligned with the sealing piston rod, then the rotating rod is rotated to drive the small straight gear to rotate, the rotating disc is driven to rotate, so that multiple groups of large straight gears are driven to synchronously rotate, the sealing piston rods are respectively driven to move towards one end and be inserted into the fixing hole in the inner wall of the positioning block, the extension pipe and the connecting shell are fixed, and therefore, the extension pipe and the high-temperature radiating pipe are arranged.

Description

Corrosion-resistant special tuning fork liquid level switch

Technical Field

The utility model relates to the field of industrial process control, in particular to a corrosion-resistant special tuning fork liquid level switch.

Background

Liquid level switch is the instrument that liquid level control in-process was used often, and liquid level switch's reliability is very important to industrial control's security, and liquid level switch is often used for high low level to report to the police, and the pump control prevents that the overflow of storage tank etc. is all very important, because the physical and chemical characteristic difference that is surveyed the medium at the difference is bigger, to the measurement of different corrosivity media, needs different sensors to connect the liquid material like: adopts different materials such as 316L, 304SS, HC, titanium, tantalum and the like and a fork body structure lined with PFA.

The existing corrosion-resistant special liquid level switch is generally composed of a fork body, an extension pipe, a loose flange, a high-temperature radiating pipe and a shell, the existing extension pipe is generally connected with the high-temperature radiating pipe through the loose flange, the connection process is more complicated, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the extension pipe can not be connected with high temperature cooling tube fast and the high temperature extension pipe is connected the relatively poor problem of back leakproofness with high temperature cooling tube, provide corrosion-resistant special tuning fork liquid level switch.

In order to achieve the purpose, the utility model provides the following technical scheme: corrosion-resistant special tuning fork liquid level switch includes:

a housing;

the high-temperature radiating pipe is fixedly connected to the bottom end of the shell;

the loose flange is arranged on the outer wall of the high-temperature radiating pipe;

an extension pipe, the extension pipe sets up the below of high temperature cooling tube, the fork body is installed to the bottom of extension pipe

The auxiliary mechanism is positioned on the outer wall of the high-temperature radiating pipe and used for assisting workers in quickly disassembling and assembling the extension pipe and the high-temperature radiating pipe;

and the sealing mechanism is positioned on the inner wall of the auxiliary mechanism and used for sealing the extension pipe.

As a still further scheme of the utility model: the complementary unit is including connecting shell, dwang, locating piece, rolling disc, little straight-teeth gear, big straight-teeth gear and sealing piston rod, the connecting shell is installed the inboard of pine cover flange, and fixed connection be in the outer wall of high temperature cooling tube, the dwang rotates to be connected the inner wall of connecting shell, little straight-teeth gear fixed connection be in the outer wall of dwang, the rolling disc rotates to be connected the inner wall of connecting shell, and is located one side of little straight-teeth gear, big straight-teeth gear rotates to be connected the inner wall of connecting shell, and is located the top of rolling disc, sealing piston rod sliding connection be in the inner wall of connecting shell, and be located the inboard of big straight-teeth gear, locating piece fixed connection be in the outer wall of extension pipe.

As a still further scheme of the utility model: sealing mechanism includes sealed gasbag, sealed piston block, sealed storehouse and lead screw, sealed storehouse is seted up the inner wall of connecting the shell, sealed piston block sliding connection be in the inside of sealed storehouse, lead screw fixed connection be in the top of little straight-teeth gear, sealed storehouse is installed the inner wall of connecting the shell.

As a still further scheme of the utility model: the outer wall of the large straight gear is fixedly connected with a bearing sleeve, and the large straight gear is rotatably connected with the connecting shell through the bearing sleeve fixedly connected with the outer wall.

As a still further scheme of the utility model: the inner wall of the connecting shell is provided with a mounting groove matched with the positioning block, and the inner wall of the positioning block is provided with a fixing hole matched with the sealing piston rod.

As a still further scheme of the utility model: the inner wall of big straight-teeth gear is provided with the screw thread, the outer wall of sealing piston rod is provided with the thread groove, sealing piston rod outer wall fixedly connected with stopper, sealing piston rod pass through outer wall fixed connection's stopper with connect shell sliding connection, the top of rolling disc be provided with big straight-teeth gear engaged with's latch, the outer wall of rolling disc be provided with little straight-teeth gear engaged with's latch.

As a still further scheme of the utility model: the bottom fixedly connected with thread bush of sealed piston piece, sealed piston piece bottom thread bush cup joints the outer wall of lead screw, sealed gasbag's input fixedly connected with air duct, just the one end of air duct extends to the inside of sealed storehouse.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up complementary unit, install the extension pipe inside the connecting shell through the locating piece, and be located the bottom of high temperature cooling tube, make the fixed orifices that the locating piece inner wall was opened and level with sealing piston rod, then it is rotatory to rotate the dwang and drive little spur gear, the drive rolling disc is rotatory, thereby drive the big spur gear of multiunit and carry out synchronous rotation, drive sealing piston rod respectively and move to one end and insert in the fixed orifices of locating piece inner wall, fix extension pipe and connecting shell, thereby make extension pipe and high temperature cooling tube install, when carrying out reverse operation with the above-mentioned step, make the extension pipe dismantle fast, cooperation through above multiunit part has realized extension pipe and high temperature cooling tube carries out the function of dismouting, make things convenient for the staff to operate;

2. through setting up sealing mechanism, it is rotatory to drive the lead screw when little straight-teeth gear is rotatory to drive sealed piston piece and slide in sealed storehouse inside, pass through inside the sealed gasbag of air duct conveyer belt with the inside gas of sealed storehouse, make sealed gasbag expand, when sealed piston rod fixes the locating piece, sealed gasbag inflation will connect the clearance between shell and the extension pipe stifled, realized carrying out sealed function to the extension pipe through the cooperation of above multiunit part, improved the holistic leakproofness of device.

Drawings

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

FIG. 2 is a cross-sectional view of a loose flange and connecting shell of the present invention;

FIG. 3 is an enlarged view of the utility model at A;

fig. 4 is a bottom sectional view of the connection housing of the present invention.

In the figure: 1. a housing; 2. a high-temperature radiating pipe; 3. loosening the flange; 4. an extension tube; 5. a fork body; 6. an auxiliary mechanism; 601. a connecting shell; 602. rotating the rod; 603. positioning blocks; 604. rotating the disc; 605. a small spur gear; 606. a large spur gear; 607. a sealing piston rod; 7. a sealing mechanism; 701. sealing the air bag; 702. a sealing piston block; 703. sealing the bin; 704. and a screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 to 4, in an embodiment of the present invention, an anti-corrosion special tuning fork liquid level switch includes:

a housing 1;

the high-temperature radiating pipe 2 is fixedly connected to the bottom end of the shell 1;

the loose flange 3 is arranged on the outer wall of the high-temperature radiating pipe 2;

an extension pipe 4, the extension pipe 4 is arranged below the high-temperature radiating pipe 2, and a fork body 5 is arranged at the bottom end of the extension pipe 4

The auxiliary mechanism 6 is positioned on the outer wall of the high-temperature radiating pipe 2 and is used for assisting a worker to quickly disassemble and assemble the extension pipe 4 and the high-temperature radiating pipe 2;

and the sealing mechanism 7 is positioned on the inner wall of the auxiliary mechanism 6 and is used for sealing the extension pipe 4.

Referring to fig. 1 to 4, the auxiliary mechanism 6 includes a connecting shell 601, a rotating rod 602, a positioning block 603, a rotating disc 604, a small spur gear 605, a large spur gear 606 and a sealing piston rod 607, the connecting shell 601 is installed inside the loose flange 3, and is fixedly connected to the outer wall of the high temperature radiating pipe 2, the rotating rod 602 is rotatably connected to the inner wall of the connection housing 601, the small spur gear 605 is fixedly connected to the outer wall of the rotating rod 602, the rotating disc 604 is rotatably connected to the inner wall of the connection housing 601, and is positioned at one side of the small spur gear 605, the large spur gear 606 is rotatably connected to the inner wall of the connection housing 601, and is located above the rotating disc 604, the sealing piston rod 607 is slidably connected to the inner wall of the connecting housing 601, and is positioned at the inner side of the large straight gear 606, the positioning block 603 is fixedly connected with the outer wall of the extension pipe 4, the function of quick assembly disassembly of extension pipe 4 and high temperature cooling tube 2 has been realized through the cooperation of above multiunit part.

Please refer to fig. 2-4, the sealing mechanism 7 includes a sealing air bag 701, a sealing piston block 702, a sealing cabin 703 and a screw rod 704, the sealing cabin 703 is opened on the inner wall of the connecting shell 601, the sealing piston block 702 is slidably connected inside the sealing cabin 703, the screw rod 704 is fixedly connected to the top end of the small spur gear 605, the sealing cabin 703 is installed on the inner wall of the connecting shell 601, the sealing air bag 701 is rapidly expanded through the cooperation of the above multiple parts, the gap between the extension pipe 4 and the connecting shell 601 is blocked, and the sealing performance of the whole device is improved.

Please refer to fig. 3, a bearing sleeve is fixedly connected to an outer wall of the large spur gear 606, and the large spur gear 606 is rotatably connected to the connecting shell 601 through the bearing sleeve fixedly connected to the outer wall, so that the large spur gear 606 can rotate conveniently, and friction between the large spur gear 606 and the connecting shell 601 is reduced through the bearing sleeve.

Please refer to fig. 2 and fig. 3, the inner wall of the connecting housing 601 is formed with a mounting groove matching with the positioning block 603, the inner wall of the positioning block 603 is formed with a fixing hole matching with the sealing piston rod 607, so that the positioning block 603 is convenient to mount, and the positioning block 603 is fixed by inserting the sealing piston rod 607 into the fixing hole of the inner wall of the positioning block 603.

Please refer to fig. 3, the inner wall of the large spur gear 606 is provided with a thread, the outer wall of the sealing piston rod 607 is provided with a thread groove, the outer wall of the sealing piston rod 607 is fixedly connected with a limiting block, the sealing piston rod 607 is slidably connected with the connecting shell 601 through the limiting block fixedly connected with the outer wall, the top end of the rotating disc 604 is provided with a latch engaged with the large spur gear 606, the outer wall of the rotating disc 604 is provided with a latch engaged with the small spur gear 605, so that the small spur gear 605 can rotate to drive the large spur gear 606 to rotate through the rotating disc 604, thereby driving the sealing piston rod 607 to move towards one end.

Referring to fig. 3 and 4 again, the bottom end of the sealing piston block 702 is fixedly connected with a threaded sleeve, the threaded sleeve at the bottom end of the sealing piston block 702 is sleeved on the outer wall of the screw rod 704, the input end of the sealing balloon 701 is fixedly connected with an air duct, and one end of the air duct extends into the sealing chamber 703, so that the screw rod 704 rotates to drive the sealing piston block 702 to move towards one end, and the air in the sealing chamber 703 is conveyed into the sealing balloon 701 through the air duct.

The working principle of the utility model is as follows: firstly, when the extension pipe 4 and the high-temperature radiating pipe 2 need to be disassembled, the extension pipe 4 is firstly installed inside the connecting shell 601 through the positioning block 603 and is positioned at the bottom end of the high-temperature radiating pipe 2, so that the fixing hole formed in the inner wall of the positioning block 603 is aligned with the sealing piston rod 607, then the rotating rod 602 is rotated to drive the small spur gear 605 to rotate, the rotating disk 604 is driven to rotate, so as to drive the multiple groups of large spur gears 606 to synchronously rotate, the sealing piston rod 607 is respectively driven to move towards one end to be inserted into the fixing hole in the inner wall of the positioning block 603, the extension pipe 4 and the connecting shell 601 are fixed, so as to install the extension pipe 4 and the high-temperature radiating pipe 2, when the steps are reversely operated, the extension pipe 4 is rapidly disassembled, the function of disassembling and assembling the extension pipe 4 and the high-temperature radiating pipe 2 is realized through the cooperation of the multiple groups of parts, the small spur gear 605 drives the screw rod 704 to rotate while rotating, therefore, the sealing piston block 702 is driven to slide in the sealing bin 703, the air in the sealing bin 703 passes through the air duct conveying belt to seal the inside of the air bag 701, so that the sealing air bag 701 is expanded, when the sealing piston rod 607 fixes the positioning block 603, the sealing air bag 701 is expanded to block the gap between the connecting shell 601 and the extension pipe 4, and the sealing performance of the whole device is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. Corrosion-resistant special tuning fork liquid level switch, its characterized in that includes:

a housing (1);

the high-temperature radiating pipe (2) is fixedly connected to the bottom end of the shell (1);

the loose flange (3) is arranged on the outer wall of the high-temperature radiating pipe (2);

extension pipe (4), extension pipe (4) set up the below of high temperature cooling tube (2), fork body (5) are installed to the bottom of extension pipe (4)

The auxiliary mechanism (6) is positioned on the outer wall of the high-temperature radiating pipe (2) and used for assisting a worker to rapidly assemble and disassemble the extension pipe (4) and the high-temperature radiating pipe (2);

and the sealing mechanism (7) is positioned on the inner wall of the auxiliary mechanism (6) and is used for sealing the extension pipe (4).

2. The corrosion-resistant special tuning fork liquid level switch of claim 1, wherein the auxiliary mechanism (6) comprises a connecting shell (601), a rotating rod (602), a positioning block (603), a rotating disc (604), a small spur gear (605), a large spur gear (606) and a sealing piston rod (607), the connecting shell (601) is installed at the inner side of the loose flange (3) and fixedly connected to the outer wall of the high-temperature radiating pipe (2), the rotating rod (602) is rotatably connected to the inner wall of the connecting shell (601), the small spur gear (605) is fixedly connected to the outer wall of the rotating rod (602), the rotating disc (604) is rotatably connected to the inner wall of the connecting shell (601) and located at one side of the small spur gear (605), the large spur gear (606) is rotatably connected to the inner wall of the connecting shell (601) and located above the rotating disc (604), the sealing piston rod (607) is connected to the inner wall of the connecting shell (601) in a sliding mode and located on the inner side of the large straight gear (606), and the positioning block (603) is fixedly connected to the outer wall of the extension pipe (4).

3. The corrosion-resistant special tuning fork liquid level switch of claim 2, characterized in that, sealing mechanism (7) is including sealed gasbag (701), sealed piston block (702), sealed storehouse (703) and lead screw (704), sealed storehouse (703) is seted up the inner wall of connecting shell (601), sealed piston block (702) sliding connection in the inside of sealed storehouse (703), lead screw (704) fixed connection in the top of little spur gear (605), sealed storehouse (703) is installed the inner wall of connecting shell (601).

4. The corrosion-resistant special tuning fork liquid level switch of claim 2, wherein a bearing sleeve is fixedly connected to an outer wall of the large spur gear (606), and the large spur gear (606) is rotatably connected to the connection housing (601) through the bearing sleeve fixedly connected to the outer wall.

5. The corrosion-resistant special tuning fork liquid level switch according to claim 2, wherein an installation groove matched with the positioning block (603) is formed in an inner wall of the connection shell (601), and a fixing hole matched with the sealing piston rod (607) is formed in an inner wall of the positioning block (603).

6. The corrosion-resistant special tuning fork liquid level switch of claim 2, wherein the inner wall of the large spur gear (606) is provided with threads, the outer wall of the sealing piston rod (607) is provided with thread grooves, the outer wall of the sealing piston rod (607) is fixedly connected with a limiting block, the sealing piston rod (607) is slidably connected with the connecting shell (601) through the limiting block fixedly connected with the outer wall, the top end of the rotating disc (604) is provided with a latch which is engaged with the large spur gear (606), and the outer wall of the rotating disc (604) is provided with a latch which is engaged with the small spur gear (605).

7. The corrosion-resistant special tuning fork liquid level switch of claim 3, wherein a threaded sleeve is fixedly connected to the bottom end of the sealing piston block (702), the threaded sleeve at the bottom end of the sealing piston block (702) is sleeved on the outer wall of the lead screw (704), an air guide pipe is fixedly connected to the input end of the sealing air bag (701), and one end of the air guide pipe extends to the inside of the sealing bin (703).