CN218241701U - Float level switch - Google Patents
Float level switch Download PDFInfo
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- CN218241701U CN218241701U CN202221510816.5U CN202221510816U CN218241701U CN 218241701 U CN218241701 U CN 218241701U CN 202221510816 U CN202221510816 U CN 202221510816U CN 218241701 U CN218241701 U CN 218241701U
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- sleeve
- upper cover
- switch
- level switch
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Abstract
The utility model relates to a floater liquid level switch, the novel nipple rectifier comprises a cylindrical shel, the upper end opening of barrel, its lower extreme is equipped with the inlet, its lateral wall is close to the upper end opening part and is equipped with the liquid outlet, be equipped with the upper cover on the opening, be equipped with the floater in the barrel, the floater upper end is connected with the guide arm, the guide arm stretches out the upper cover, and its upper portion cover is equipped with ferromagnetic metal sleeve, be equipped with the ejector sleeve pipe of cover outside the guide arm in the middle of the upper cover, ejector sleeve outside-pipe sub-unit connection has the ejector pin cover, the lower part and the upper cover threaded connection of ejector pin cover, the support cover of adapter sleeve connection switch box is passed through on ejector pin cover upper portion, the support cover sets up outside the ejector pin cover, the upper end of ejector pin cover is equipped with the connector with adapter sleeve wall connection, the connector is connected with the switch box, be equipped with the electromagnetic type microelectronic switch that can hold ferromagnetic metal sleeve in the switch box. The guide rod moves up and down in a cavity formed by the cylinder body and the top sleeve to drive the floating ball to move up and down in the cylinder body, and the output of a switch signal is realized through the suction and disconnection actions of the electromagnetic microelectronic switch and the ferromagnetic metal sleeve.
Description
Technical Field
The utility model belongs to the technical field of refrigeration trade technique and specifically relates to a floater liquid level switch.
Background
The float ball liquid level switch utilizes the magnetic float to rise or fall along with the liquid level, so that the reed pipe chip at the position in the sensor detection pipe acts, and a contact point switching signal is sent out. One or more reed pipes are arranged in the closed non-magnetic conductive pipe, then the pipe passes through one or more hollow floating balls with annular magnets inside, and the rising or falling of the liquid drives the floating balls to move up and down together, so that the reed pipes in the non-magnetic conductive pipe generate suction or disconnection actions, and a switch signal is output.
The floating ball liquid level switch has a complex structure and is troublesome to manufacture, and the sensitivity of the reed switch to a magnetic field depends on the diameter of the reed switch, namely the smaller the diameter is, the more sensitive the reed switch to the magnetic field is, so that the requirement on processing the reed switch is higher. Therefore, a floating ball liquid level switch which is simple in structure, convenient and fast to install and suitable for the refrigeration industry is urgently needed to be designed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a float ball liquid level switch.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a floater liquid level switch, includes the barrel, the upper end opening of barrel, its lower extreme are equipped with the inlet, and its lateral wall is close to the upper end opening part and is equipped with the liquid outlet, be equipped with the upper cover on the opening, be equipped with the floater in the barrel, the floater upper end is connected with the guide arm, the guide arm stretches out the upper cover, and its upper portion cover is equipped with ferromagnetic metal sleeve, be equipped with the ejector sleeve pipe of cover outside the guide arm in the middle of the upper cover, ejector sleeve outside sub-unit connection has the ejector pin cover, the lower part and the upper cover threaded connection of ejector pin cover, ejector pin cover upper portion are through the support cover of adapter sleeve connection switch box, the support cover sets up outside the ejector pin cover, and the upper end of ejector pin cover is equipped with the connector with adapter sleeve inner wall connection, the connector is connected with the switch box, be equipped with the electromagnetic type micro-electronic switch that can hold ferromagnetic metal sleeve in the switch box.
The guide rod moves up and down in a cavity formed by the cylinder body and the top sleeve, and simultaneously drives the floating ball to move up and down in the cylinder body, and the output of a switching signal is realized through the suction and disconnection actions of the electromagnetic microelectronic switch and the ferromagnetic metal sleeve.
Furthermore, an inner wire through hole is formed in the middle of the upper cover, the upper cover close to two sides of the lower opening of the inner wire through hole is provided with an inclined plane, and an upper cover gasket with the same outline as the bottom surface of the upper cover is arranged on the bottom surface of the upper cover.
The inner thread through hole is arranged, so that the upper cover and the ejector rod sleeve are conveniently connected, and the inclined plane and the upper cover gasket are arranged, so that the sealing performance is ensured.
Furthermore, the upper cover gasket is composed of straight sections at two ends and a protruding section positioned between the two straight sections, the contour of the protruding section is the same as the contour from one inclined plane to the other inclined plane, a certain distance is reserved between the protruding section and the upper cover, and a through hole for the guide rod to pass through is formed in the middle of the protruding section.
So set up, one guarantees the leakproofness of upper cover, two guarantees the contact validity of floater and upper cover gasket.
In order to ensure the sealing performance of the joint of the ejector rod sleeve and the upper cover, a sealing gasket is further arranged at the upper end of the joint of the ejector rod sleeve and the upper cover.
In order to ensure the sealing property, a first O-shaped ring is arranged at the joint of the ejector rod sleeve and the connecting sleeve, a second O-shaped ring is arranged at the upper end of the joint of the connecting sleeve and the supporting sleeve, and a third O-shaped ring is arranged at the upper end of the joint of the connecting sleeve and the connecting head.
In order to facilitate the connection with the liquid inlet pipeline, a first flange is connected to the lower end of the cylinder, and a first flange gasket is arranged at the joint of the first flange and the cylinder.
In order to be connected with the liquid outlet pipeline conveniently, furthermore, be equipped with the flange limit on the liquid outlet, the flange edge is connected with the second flange, and the junction of second flange and flange limit is equipped with second flange gasket.
Furthermore, the floater is the ellipsoid form, and is equipped with the folding chimb of round in the middle of it.
The folding convex edge is arranged, so that the stability of the up-and-down movement of the floating ball can be ensured.
Furthermore, the guide rod is a hollow tube, and the lower end of the guide rod extends into the floating ball and is welded with the floating ball.
Hollow structure's guide arm and lower extreme stretch into the floater, guarantee both and link up, further guarantee the stability of floater up-and-down motion.
Furthermore, the upper part of the guide rod is provided with a plurality of limiting grooves.
The height of the ferromagnetic metal sleeve can be adjusted through the limiting groove, and then the liquid level control return difference is adjusted.
The utility model has the advantages that:
the lower part outside the ejector sleeve is connected with an ejector rod sleeve, the lower part of the ejector rod sleeve is in threaded connection with the upper cover, the upper part of the ejector rod sleeve is connected with a supporting sleeve of the switch box through a connecting sleeve, the supporting sleeve is arranged outside the ejector rod sleeve, the upper end of the ejector rod sleeve is provided with a connector connected with the inner wall of the connecting sleeve, and the connector is connected with the switch box;
the guide rod moves up and down in a cavity formed by the cylinder body and the top sleeve, and simultaneously drives the floating ball to move up and down in the cylinder body, and the output of a switching signal is realized through the suction and disconnection actions of the electromagnetic type microelectronic switch and the ferromagnetic metal sleeve.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the off state of the present invention.
Fig. 2 is a schematic structural view of the open state of the present invention.
Fig. 3 is an enlarged view at I in fig. 2.
In the figure: 1. the liquid outlet device comprises a cylinder body, 1-1 parts of a liquid inlet, 1-2 parts of a liquid outlet, 1-2-1 parts of a flange edge, 2 parts of an upper cover, 21 parts of an inclined plane, 3 parts of a floating ball, 4 parts of a guide rod, 5 parts of a ferromagnetic metal sleeve, 6 parts of a top sleeve, 7 parts of a top rod sleeve, 8 parts of a connecting sleeve, 9 parts of a switch box, 10 parts of a supporting sleeve, 11 parts of a connecting head, 12 parts of an electromagnetic microelectronic switch, 13 parts of an upper cover gasket, 131 parts of a straight section, 132 parts of a protruding section, 14 parts of a sealing gasket, 15 parts of a first O-shaped ring, 16 parts of a second O-shaped ring, 17 parts of a third O-shaped ring, 18 parts of a first flange, 19 parts of a first flange gasket, 20 parts of a second flange, 21 parts of a second flange gasket, 31 parts of a folded convex edge and 41 parts of a limiting groove.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, a float level switch includes a barrel 1, an upper opening of the barrel 1 is provided, a liquid inlet 1-1 is provided at a lower end of the barrel 1, a liquid outlet 1-2 is provided at a side wall of the barrel adjacent to the upper opening, an upper cover 2 is provided at the opening, a float 3 is provided in the barrel 1, a guide rod 4 is connected to an upper end of the float 3, the guide rod 4 extends out of the upper cover 2, a ferromagnetic metal sleeve 5 is sleeved on an upper portion of the guide rod 4, a plurality of limit grooves 41 are provided on an upper portion of the guide rod 4, a push sleeve 6 sleeved outside the guide rod 4 is provided in the middle of the upper cover 2, a push sleeve 7 is connected to a lower portion of the push sleeve 6, a support sleeve 10 of the push sleeve 7 is screwed to the upper cover 2, the upper portion of the push sleeve 7 is connected to a switch box 9 through a connecting sleeve 8 (installed at any angle above the barrel 1, and is easy to install and maintain, a receiving and outputting device connected to a pipeline control system signal is provided therein, which can be realized in the prior art, the support sleeve 10 is provided outside the push sleeve 7, a metal sleeve 11 connected to the switch box 9, and a micro-magnetic switch structure (a micro-electric switch structure) is not shown).
The float ball liquid level switch of the embodiment can send a switch signal according to the change of the liquid level, the liquid level is controlled by installing the ferromagnetic metal sleeves 5 on the plurality of limiting grooves 41 on the upper part of the guide rod 4, and the high and low liquid levels can be alarmed.
The middle of the upper cover 2 is provided with an internal thread through hole, the upper cover 2 close to two sides of the lower opening of the internal thread through hole is provided with an inclined plane, the bottom surface of the upper cover 2 is provided with an upper cover gasket 13 with the same profile as the bottom surface of the upper cover 2, and the upper cover gasket 13 is preferably made of aluminum; the upper cover gasket 13 is composed of two straight sections 131 at two ends and a protruding section 132 located between the two straight sections 131, the contour of the protruding section 132 is the same as the contour from one inclined plane to the other inclined plane, a certain distance is provided between the protruding section 132 and the upper cover 2, and a through hole for the guide rod 4 to pass through is arranged in the middle of the protruding section 132.
In order to ensure the sealing performance of the whole switch, a sealing gasket 14 is arranged at the upper end of the joint of the ejector rod sleeve 7 and the upper cover 2. A first O-shaped ring 15 is arranged at the joint of the ejector rod sleeve 7 and the connecting sleeve 8, a second O-shaped ring 16 is arranged at the upper end of the joint of the connecting sleeve 8 and the support sleeve 10, and a third O-shaped ring 17 is arranged at the upper end of the joint of the connecting sleeve 8 and the connector 11; the first O-ring 15, the second O-ring 16 and the third O-ring 17 are made of neoprene.
In order to facilitate the pipeline access, the lower end of the cylinder body 1 is connected with a first flange 18, and a first flange gasket 19 is arranged at the joint of the first flange 18 and the cylinder body 1; the liquid outlet 1-2 is provided with a flange edge 1-2-1, the flange edge 1-2-1 is connected with a second flange 20, and a second flange gasket 21 is arranged at the joint of the second flange 20 and the flange edge 1-2-1.
Preferably, the floating ball 3 is shaped like an ellipsoid, and a circle of folded convex edge 31 is arranged in the middle. The guide rod 4 is a hollow tube, the lower end of which extends into the floating ball 3 and is welded with the floating ball 3.
The float ball liquid level switch of the embodiment is suitable for various non-flammable refrigerants including ammonia and non-corrosive gas and liquid, the switch box 9 can be replaced under the condition that a refrigeration system is not influenced, the temperature application range is-50 ℃ to +65 ℃, and the maximum working pressure is 2.8MPa; when the test pressure exceeds 2.8MPa, the float ball 3 is taken out, and the maximum test pressure of the cylinder 1 can reach 4.2MPa.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a floater liquid level switch, includes barrel (1), the upper end opening of barrel (1), its lower extreme are equipped with inlet (1-1), and its lateral wall is close to the upper end opening part and is equipped with liquid outlet (1-2), be equipped with upper cover (2) on the opening, its characterized in that: the utility model discloses a plunger pump, including barrel (1), floater (3), guide arm (4) are connected with to floater (3) upper end, upper cover (2) is stretched out in guide arm (4), and its upper cover is equipped with ferromagnetic metal sleeve (5), be equipped with top sleeve (6) of cover outside guide arm (4) in the middle of upper cover (2), the outer lower part of top sleeve (6) is connected with ejector pin cover (7), the lower part and upper cover (2) threaded connection of ejector pin cover (7), ejector pin cover (7) upper portion is through the support cover (10) of adapter sleeve (8) linked switch box (9), support cover (10) and set up outside ejector pin cover (7), the upper end of ejector pin cover (7) is equipped with connector (11) with adapter sleeve (8) inner wall connection, electromagnetic type connector (11) are connected with switch box (9), be equipped with in switch box (9) and inhale microelectronic switch (12) of ferromagnetic metal sleeve (5).
2. The float level switch of claim 1, wherein: the inner wire through hole is formed in the middle of the upper cover (2), the upper cover (2) close to two sides of the lower opening of the inner wire through hole is provided with an inclined plane, and an upper cover gasket (13) with the same outline as the bottom surface of the upper cover (2) is arranged on the bottom surface of the upper cover.
3. The float level switch of claim 2, wherein: the upper cover gasket (13) is composed of straight sections (131) at two ends and a protruding section (132) located between the two straight sections (131), the outline of the protruding section (132) is the same as the outline from one inclined plane to the other inclined plane, a certain distance is reserved between the protruding section (132) and the upper cover (2), and a through hole for the guide rod (4) to pass through is formed in the middle of the protruding section (132).
4. The float level switch of claim 1, wherein: a sealing gasket (14) is arranged at the upper end of the joint of the ejector rod sleeve (7) and the upper cover (2).
5. The float level switch of claim 1, wherein: the ejector rod sleeve is characterized in that a first O-shaped ring (15) is arranged at the joint of the ejector rod sleeve (7) and the connecting sleeve (8), a second O-shaped ring (16) is arranged at the upper end of the joint of the connecting sleeve (8) and the supporting sleeve (10), and a third O-shaped ring (17) is arranged at the upper end of the joint of the connecting sleeve (8) and the connecting head (11).
6. The float level switch of claim 1, wherein: the lower end of the barrel body (1) is connected with a first flange (18), and a first flange gasket (19) is arranged at the joint of the first flange (18) and the barrel body (1).
7. The float level switch of claim 1, wherein: the liquid outlet (1-2) is provided with a flange edge (1-2-1), the flange edge (1-2-1) is connected with a second flange (20), and a second flange gasket (21) is arranged at the joint of the second flange (20) and the flange edge (1-2-1).
8. The float level switch of claim 1, wherein: the floating ball (3) is in an ellipsoid shape, and a circle of folding convex edge (31) is arranged in the middle of the floating ball.
9. The float level switch of claim 1 or 8, wherein: the guide rod (4) is a hollow tube, the lower end of which extends into the floating ball (3) and is welded with the floating ball (3).
10. The float level switch of claim 1, wherein: the upper part of the guide rod (4) is provided with a plurality of limiting grooves (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221510816.5U CN218241701U (en) | 2022-06-16 | 2022-06-16 | Float level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221510816.5U CN218241701U (en) | 2022-06-16 | 2022-06-16 | Float level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218241701U true CN218241701U (en) | 2023-01-06 |
Family
ID=84671924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221510816.5U Active CN218241701U (en) | 2022-06-16 | 2022-06-16 | Float level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218241701U (en) |
-
2022
- 2022-06-16 CN CN202221510816.5U patent/CN218241701U/en active Active
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