CN102723232B - Liquid level switch - Google Patents
Liquid level switch Download PDFInfo
- Publication number
- CN102723232B CN102723232B CN201210207715.5A CN201210207715A CN102723232B CN 102723232 B CN102723232 B CN 102723232B CN 201210207715 A CN201210207715 A CN 201210207715A CN 102723232 B CN102723232 B CN 102723232B
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- lever
- connecting rod
- liquid level
- magnetic steel
- floating ball
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- 239000007788 liquid Substances 0.000 title claims abstract description 66
- 230000001960 triggered effect Effects 0.000 claims abstract description 42
- 235000014676 Phragmites communis Nutrition 0.000 claims description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 230000003628 erosive effect Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a liquid level switch which is used for measuring liquid level in a container and comprises a supporting column, a lever, a floating ball and an electric signal device. The lever is disposed at the top end of the supporting column. The floating ball is disposed at one end of the lever. A triggering device of the electric signal device is connected with the lever. A triggered device of the electric signal device is disposed outside the container. The triggering device can move to a triggering position of the triggered device due to rotation of the lever. The liquid level switch has the advantages that the triggered device is disposed outside the container, erosion of the triggered device by liquid or gas in the container is avoided, service life of the triggered device is prolonged, two leads of the triggered device are also disposed outside the container accordingly, erosion of the leads by the liquid or the gas in the container is avoided, and possibility of short circuit is lowered.
Description
Technical Field
The invention relates to the technical field of liquid level measurement, in particular to a liquid level switch.
Background
The liquid level switch, which is a switch for controlling a liquid level, that is, a liquid level height, an electrical signal device of the liquid level switch includes a triggering device and a triggered device, both of which are generally disposed in a container, please refer to fig. 1, fig. 1 is a schematic structural diagram of the liquid level switch in the prior art, the liquid level switch includes a pillar 105, a probe tube is disposed inside the pillar 105, a reed tube 106 of the triggered device is disposed inside the probe tube, the reed tube 106 is connected to an external circuit through two wires when closed, the external circuit can send out related electrical signals after being connected, a lever 103 is disposed at a top end of the pillar 105, the lever 103 can flexibly rotate around the top end of the pillar 105, a floating ball 102 or a buoy is disposed at one end of the lever 103, a triggering device magnetic steel 104 is mounted at the other end of the lever 103, when the magnetic steel 104 is close to the reed tube 106, the reed switch 106 can be closed. When the liquid level switch is used, the floating ball 102 is placed in the container through the support column 105, when the liquid level 101 in the container rises to a certain height, the liquid level 101 can be in contact with the floating ball 102, the floating ball 102 is supported by the liquid level 101, the floating ball 102 drives the lever 103 to rotate around the top end of the support column 102, the magnetic steel 104 at the other end of the lever 103 is close to the reed pipe 106 in the probe pipe, the contact part of the reed pipe 106 can be attracted by the magnetic force of the magnetic steel 104, when the attraction force is larger than the elastic force of the spring, the contact can be attracted, the reed pipe 106 is closed, an external circuit is connected, and.
Because the probe is in a container for containing liquid for a long time, the probe is easy to corrode and break after long-time use, so that liquid or gas enters the probe, the reed switch 106 in the probe and two wires connected with the reed switch 106 are corroded, the service life of the reed switch 106 is shortened, and meanwhile, short circuit is easy to occur.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a liquid level switch to prevent corrosion of a triggered device and two wires connected to the triggered device.
Disclosure of Invention
Accordingly, the present invention is directed to a liquid level switch, which prevents corrosion of a reed switch.
In order to achieve the purpose, the invention provides the following technical scheme:
a liquid level switch is used for measuring the liquid level in a container and comprises a support column, a lever, a floating ball and an electric signal device, wherein the lever is arranged at the top end of the support column; the floating ball is arranged at one end of the lever; the triggering device of the electric signal device is connected with the lever, the triggered device of the electric signal device is positioned outside the container, and the triggering device can move to a position for triggering the triggered device when the lever rotates.
Preferably, the triggering device is magnetic steel, and the triggered device is a reed switch.
Preferably, above-mentioned liquid level switch still includes first connecting rod and second connecting rod, wherein, the lever with the one end of first connecting rod is articulated, the other end of first connecting rod with the one end of second connecting rod is articulated, the other end of second connecting rod is fixed with the magnet steel, the second connecting rod is located the inside of pillar.
Preferably, a support member slidably fixing the second link is disposed inside the pillar, and the support member is configured to prevent the magnetic steel from contacting the pillar.
Preferably, the other end of the lever is hinged with one end of the first connecting rod, and the magnetic steel is positioned at the upper part of the reed pipe.
Preferably, one end of the lever, which is provided with the floating ball, is hinged with the first connecting rod, and the magnetic steel is positioned at the lower part of the reed pipe.
Preferably, the liquid level switch further comprises a third connecting rod, the lever is hinged to one end of the third connecting rod, and magnetic steel is arranged at the other end of the third connecting rod.
Preferably, the other end of the lever is hinged with one end of the third connecting rod, and the magnetic steel is positioned at the upper part of the reed pipe.
Preferably, one end of the lever, which is provided with the floating ball, is hinged with the third connecting rod, and the magnetic steel is positioned at the lower part of the reed pipe.
The liquid level switch provided by the invention is used for measuring the liquid level in a container and comprises a support column, a lever, a floating ball and an electric signal device, wherein the lever is arranged at the top end of the support column; the floating ball is arranged at one end of the lever; the triggering device of the electric signal device is connected with the lever, the triggered device of the electric signal device is positioned outside the container, and the triggering device can move to a position for triggering the triggered device when the lever rotates. When the liquid level in the container rises to a certain height, the liquid level is contacted with the floating ball, the floating ball is supported by the liquid level, the floating ball drives the lever to rotate around the top end of the support column to drive the trigger device connected with the lever to move, and when the trigger device moves to a position capable of triggering the triggered device, the triggered device enables an external circuit to be communicated, and an electric signal is sent.
The liquid level switch has the advantages that the triggered device is arranged outside the container, the triggering device triggered by the triggered device is arranged to be connected with the lever, the triggering device can move to the position triggered by the triggered device when the lever rotates, the triggered device is prevented from being corroded by liquid or gas in the container while the liquid level switch can work normally, the service life of the triggered device is guaranteed, two wires connected with the triggered device can move to the outside of the container along with the triggered device, the two wires cannot be corroded by the liquid or the gas in the container, and the probability of short circuit is reduced.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art level switch;
fig. 2 is a schematic structural diagram of a magnetic steel of the liquid level switch provided by the embodiment of the invention, which is positioned at the upper part of a reed switch;
fig. 3 is a schematic structural diagram of a magnetic steel of the liquid level switch provided by the embodiment of the invention, which is located at the lower part of the reed switch.
In the above FIGS. 1-3:
liquid level 101, float 102, lever 103, magnet steel 104, pillar 105, reed switch 106, liquid level 201, lever 202, first link 203, float 204, support 205, second link 206, reed switch 207, magnet steel 208, pillar 209.
Detailed Description
The embodiment of the invention provides a liquid level switch, which can prevent a reed switch from being corroded.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The invention provides a liquid level switch, which is used for measuring the liquid level 201 in a container and comprises a support 209, a lever 202, a floating ball 204 and an electric signal device, wherein the lever 202 is arranged at the top end of the support 209; the floating ball 204 is arranged at one end of the lever 202; the triggering device of the electrical signal device is connected to the lever 202, the triggered device of the electrical signal device is located outside the container, and the triggering device is movable to a position where the triggered device is triggered when the lever 202 is rotated.
When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts with the floating ball 204, the floating ball 204 supports the floating ball 204, the floating ball 204 drives the lever 202 to rotate around the top end of the support 209 to drive the trigger device connected with the lever 202 to move, and when the trigger device moves to a position where the trigger device triggers, the trigger device enables an external circuit to be communicated and sends out a corresponding electric signal.
The liquid level switch has the advantages that the triggered device is arranged outside the container, the triggering device triggered by the triggered device is arranged to be connected with the lever 202, the triggering device can move to the position triggered by the triggered device when the lever 202 rotates, the triggered device is prevented from being corroded by liquid or gas in the container while the liquid level switch can work normally, the service life of the triggered device is guaranteed, two wires connected with the triggered device can move to the outside of the container along with the triggered device arranged outside the container, the two wires cannot be corroded by the liquid or gas in the container, and the probability of short circuit is reduced.
Specifically, the triggering device is magnetic steel 208, and the triggered device is a reed switch 207. When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts with the floating ball 204, the floating ball 204 supports the floating ball 204, the floating ball 204 drives the lever 202 to rotate around the top end of the support 209 to drive the magnetic steel 208 connected with the lever 202 to move, and when the magnetic steel 208 moves to a position where the reed switch 207 is closed, the reed switch 207 is closed to communicate with an external circuit. The electrical signal device provided in the embodiment of the present invention may also be other devices capable of generating an electrical signal, and the electrical signal device is not limited.
Specifically, the liquid level switch further includes a first connecting rod 203 and a second connecting rod 206, wherein the lever 202 is hinged to one end of the first connecting rod 203, the other end of the first connecting rod 203 is hinged to one end of the second connecting rod 206, a magnetic steel 208 is fixed to the other end of the second connecting rod 206, and the second connecting rod 206 is located inside the pillar 209. Therefore, the second connecting rod 206 transports the magnetic steel 208 from the inside of the pillar 209 to a position where the reed pipe 207 can be closed, and other channels are not needed.
The second connecting rod 206 can send the magnetic steel 208 to a position where the reed pipe 207 can be closed through linear displacement, and also can send the magnetic steel 208 to a position where the reed pipe 207 can be closed after rotating at a certain angle, for example, a connecting rod is hinged to one end of the second connecting rod 206 which is not connected with the lever 202, the hinged position of the second connecting rod 206 and the connecting rod is fixed, then the magnetic steel 208 is installed on one end of the connecting rod which is not hinged with the second connecting rod 206, and the magnetic steel 208 can be sent to the position where the reed pipe 207 can be closed after rotating at a certain angle. The specific motion trajectory of the second connecting rod 206 is not limited in the embodiment of the present invention.
In order to further optimize the above solution, the inside of the pillar 209 is provided with a support 205 slidably fixing the second link 206, and the support 205 is used to prevent the magnetic steel 208 from contacting the pillar 209. The supporting member 205 may be a long plate with a circular groove at one end, the circular groove is used for fixing the second connecting rod 206, the second connecting rod 206 can slide in the circular groove, the other end of the long plate is fixed on the inner wall of the inside of the support 209, the supporting member 205 may also be a circular plate covering the cross section of the inner wall of the support 209, the periphery of the circular plate is fixed on the inner wall of the support 209, and the center of the circular plate is provided with a through hole for the second connecting rod 206 to slidably pass through. The support 205 can make the second connecting rod 206 maintain a certain motion track, when the second connecting rod 206 slides in the inside of the pillar 209, the magnetic steel 208 on the second connecting rod 206 can maintain a certain distance with the inner wall of the pillar 209, and will not collide with the inner wall of the pillar 209, which prolongs the service life of the magnetic steel 208, and meanwhile, the phenomenon that the second connecting rod 206 is clamped in the inside of the pillar 209 due to unstable motion track of the second connecting rod 206 or too inclined motion of the second connecting rod 206 will not occur.
In a specific implementation manner, please refer to fig. 2, and fig. 2 is a schematic structural diagram of a magnetic steel of a liquid level switch provided in an embodiment of the present invention, the magnetic steel being located at an upper portion of a reed switch. The other end of the lever 202 is hinged with one end of the first link 203, and the magnetic steel 208 is positioned at the upper part of the reed pipe 207. When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts with the floating ball 204, the floating ball 204 supports the floating ball 204, the floating ball 204 drives the lever 202 to rotate around the top end of the support 209, the first connecting rod 203 connected with the other end of the lever 202 is driven to move downwards, the first connecting rod 203 pulls the second connecting rod 206 to move downwards, then the magnetic steel 208 on the second connecting rod 206 and positioned at the upper part of the reed pipe 207 also moves downwards to a position where the reed pipe 207 can be closed, the reed pipe 207 is closed, and an external circuit is communicated.
In another embodiment, one end of the lever 202, which is provided with the floating ball 204, is hinged to the first link 203, and the magnetic steel 208 is located at the lower part of the reed pipe 207. When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts the floating ball 204, the floating ball 204 supports the lever 202, the floating ball 204 drives the lever 202 to rotate around the top end of the support 209, and the first connecting rod 203 is connected with one end of the lever 202, which is provided with the floating ball 204, so that the first connecting rod 203 also moves upwards, the first connecting rod 203 pulls the second connecting rod 206 to move upwards, and then the magnetic steel 208 on the second connecting rod 206, which is positioned at the lower part of the reed pipe 207, also moves upwards to a position where the reed pipe 207 can be closed, the reed pipe 207 is closed, and an external circuit is communicated.
Specifically, the lever 202 is hinged to one end of the third connecting rod, and the other end of the third connecting rod is provided with a magnetic steel 208. When the liquid level switch provided by the invention is used in a non-closed container, the manufacturing cost can be reduced by only adopting one connecting rod, and meanwhile, the structure is simpler and the production is easy.
In a specific implementation manner, please refer to fig. 3, and fig. 3 is a schematic structural diagram of a magnetic steel of a liquid level switch provided in an embodiment of the present invention, the magnetic steel being located at a lower portion of a reed switch. The other end of the lever 202 is hinged with one end of a third connecting rod, and the magnetic steel 208 is positioned at the upper part of the reed pipe 207. When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts with the floating ball 204, the floating ball 204 supports the floating ball 204, the floating ball 204 drives the lever 202 to rotate around the top end of the support column 209, and drives the third connecting rod connected with the other end of the lever 202 to move downwards, so that the magnetic steel 208 on the third connecting rod and positioned at the upper part of the reed switch 207 also moves downwards to a position where the reed switch 207 can be closed, the reed switch 207 is closed, and an external circuit is communicated.
In another embodiment, one end of the lever 202, which is provided with the floating ball 204, is hinged with the third link, and the magnetic steel 208 is located at the lower part of the reed pipe 207. When the liquid level 201 in the container rises to a certain height, the liquid level 201 contacts the floating ball 204, the floating ball 204 supports the floating ball 204, the floating ball 204 drives the lever 202 to rotate around the top end of the support column 209, and the third connecting rod is connected with one end, provided with the floating ball 204, of the lever 202, so that the third connecting rod moves upwards, the magnetic steel 208 on the third connecting rod, located at the lower part of the reed pipe 207, moves upwards to a position where the reed pipe 207 can be closed, the reed pipe 207 is closed, and an external circuit is communicated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A level switch for measuring a liquid level (201) in a container, comprising a post (209), a lever (202), a float (204) and an electrical signal device, wherein the lever (202) is arranged at the top end of the post (209); the floating ball (204) is arranged at one end of the lever (202); the triggering device of the electrical signal device is connected with the lever (202),
characterized in that the triggered device of the electrical signal device is located outside the container, the triggering device being movable to a position in which it triggers the triggered device when the lever (202) is rotated,
the triggering device is magnetic steel (208), and the triggered device is a reed switch (207);
the device is characterized by further comprising a first connecting rod (203) and a second connecting rod (206), wherein the lever (202) is hinged to one end of the first connecting rod (203), the other end of the first connecting rod (203) is hinged to one end of the second connecting rod (206), the magnetic steel (208) is fixed to the other end of the second connecting rod (206), the second connecting rod (208) is located inside the support column (209),
a supporting piece (205) which can be used for fixing the second connecting rod (206) in a sliding way is arranged inside the supporting column (209), the supporting piece (205) is used for preventing the magnetic steel (208) from contacting with the supporting column (209),
the other end of the lever (202) is hinged with one end of the first connecting rod (203), the magnetic steel (208) is positioned at the upper part of the reed pipe (207), or one end of the lever (202) provided with a floating ball (204) is hinged with the first connecting rod (203), and the magnetic steel (208) is positioned at the lower part of the reed pipe (207);
or,
still include the third connecting rod, lever (202) are articulated with the one end of third connecting rod, the other end of third connecting rod is provided with magnet steel (208).
2. The liquid level switch according to claim 1, wherein the other end of the lever (202) is hinged to one end of the third link, and the magnetic steel (208) is located at the upper part of the reed pipe (207).
3. The liquid level switch according to claim 1, wherein the end of the lever (202) provided with the floating ball (204) is hinged with the third link, and the magnetic steel (208) is located at the lower part of the reed pipe (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207715.5A CN102723232B (en) | 2012-06-20 | 2012-06-20 | Liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207715.5A CN102723232B (en) | 2012-06-20 | 2012-06-20 | Liquid level switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723232A CN102723232A (en) | 2012-10-10 |
| CN102723232B true CN102723232B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210207715.5A Active CN102723232B (en) | 2012-06-20 | 2012-06-20 | Liquid level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723232B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443977B (en) * | 2015-12-28 | 2017-12-26 | 重庆耐德能源装备集成有限公司 | Natural gas inner-cooled hydraulic booster container |
| CN108414059B (en) * | 2018-06-15 | 2024-01-16 | 常德思高技术有限公司 | Liquid level switch life test machine |
| CN115930057B (en) * | 2023-02-23 | 2024-05-31 | 上海同晟环保科技有限公司 | Adjustable installing support of orientation appearance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561940A (en) * | 1984-07-09 | 1985-12-31 | Mentec Ag | Overcharge prevention arrangement |
| CN2064516U (en) * | 1990-03-22 | 1990-10-24 | 罗德耆 | Magnetic induction dry reed pipe type floating ball liquid level display controller |
| CN2379656Y (en) * | 1999-04-30 | 2000-05-24 | 刘耀东 | Vertical taper shaped, sealing and floating ball type water valve |
| CN201893289U (en) * | 2010-12-20 | 2011-07-06 | 重庆建峰工业集团有限公司 | Float type level switch |
| CN202871685U (en) * | 2012-06-20 | 2013-04-10 | 重庆耐德能源装备集成有限公司 | Liquid level switch |
-
2012
- 2012-06-20 CN CN201210207715.5A patent/CN102723232B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561940A (en) * | 1984-07-09 | 1985-12-31 | Mentec Ag | Overcharge prevention arrangement |
| CN2064516U (en) * | 1990-03-22 | 1990-10-24 | 罗德耆 | Magnetic induction dry reed pipe type floating ball liquid level display controller |
| CN2379656Y (en) * | 1999-04-30 | 2000-05-24 | 刘耀东 | Vertical taper shaped, sealing and floating ball type water valve |
| CN201893289U (en) * | 2010-12-20 | 2011-07-06 | 重庆建峰工业集团有限公司 | Float type level switch |
| CN202871685U (en) * | 2012-06-20 | 2013-04-10 | 重庆耐德能源装备集成有限公司 | Liquid level switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723232A (en) | 2012-10-10 |
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