Laboratory waste liquid collection early warning system

Abstract

The invention discloses a laboratory waste liquid collection early warning system, and relates to the technical field of waste liquid collection early warning. A floating ball rod capable of moving up and down is installed below the device, when waste liquid in a waste liquid storage bottle is collected to the position below the floating ball rod, the floating ball rod is lifted, an alarm signal is triggered, and the waste liquid in the waste liquid storage bottle is collected to the position below the floating ball rod; the plug and the sensor socket which are used for feeding back signals do not make direct contact with the waste liquid, the stability of system operation of the device is guaranteed, meanwhile, the device is installed on a bottle opening of the waste liquid storage bottle in the mode that the outer cover and the waste liquid storage bottle are connected in a threaded mode, the device can be flexibly disassembled, and the device is convenient to use. And after the waste liquid is collected, the waste liquid is disassembled and assembled to the waste liquid storage bottle of the next batch, so that the device system is not used, the utilization rate of the device system is greatly improved, and the cost of early warning of full collection of the waste liquid in a laboratory is reduced.

Description

Technical Field

[0001] The invention relates to the field of waste liquid collection early warning, and in particular to a laboratory waste liquid collection early warning system. Background Art

[0002] In the process of conducting various experiments in the laboratory, waste liquid will inevitably be generated, and these waste liquids are usually harmful. If not handled properly, they will not only cause serious pollution to the environment, but also easily cause harm to the surrounding personnel. Therefore, the waste liquid generated in existing laboratories is usually collected in specific containers and treated uniformly.

[0003] In the process of collecting laboratory waste liquid, in order to ensure the stability of waste liquid collection in the storage container and avoid overflow of waste liquid after it is full, an early warning system is usually set up in the process of collecting laboratory waste liquid. When the waste liquid is about to be full, an alarm will be set off to remind management personnel to deal with it in time. Usually, the early warning system is installed in the waste liquid storage container in the form of a sensor integrated with an alarm module. In this structural mode, the early warning system will move with the transfer of the storage container. When the storage container is full of waste liquid and transported out for treatment, the early warning system will be idle in the storage container, resulting in a waste of resources, which will lead to a significant increase in the cost of full warning during the waste liquid collection process.

[0004] Therefore, a laboratory waste liquid collection early warning system is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that in the process of laboratory waste liquid collection, the early warning system is installed in the waste liquid storage container in the form of a sensor integrated alarm module, which causes the early warning system to be idle when the storage container is full of waste liquid and transported out for treatment, easily causing waste of resources and increasing the early warning cost. A laboratory waste liquid collection early warning system is proposed to solve the problem.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions: A laboratory waste liquid collection and early warning system comprises a protective shell, a control panel is fixedly installed in the protective shell, the top of the protective shell is fixedly covered with an upper cover, and a display screen and a switch button are fixedly inlaid on the upper cover, a sensor socket is integrated on the control panel, a connecting ring corresponding to the sensor socket is fixedly installed on the bottom of the protective shell, a battery box is installed at the bottom of the control panel, and a battery cover is clamped on the battery box, an outer shell is sleeved below the protective shell, and an externally threaded tube arranged just below the connecting ring is fixedly connected to the bottom of the outer shell, a vertical tube is inserted between the connecting ring and the externally threaded tube, and a vertical tube is movably inserted in the vertical tube and penetrates downward to the bottom of the outer shell A square float rod is provided, a plug matching the sensor socket is installed on the top of the float rod, a vertical hole is provided on the top of the vertical pipe, and a sliding block fixedly connected between the float rod and the vertical hole is slidably installed in the vertical hole, an inner cover is connected to the bottom of the externally threaded tube, and an internally threaded hole corresponding to the vertical pipe is provided in the inner cover, a second through hole which passes through from top to bottom is provided in the inner cover, an outer cover is sleeved on the outer side of the inner cover, and a waste liquid storage bottle is screwed on the lower thread of the outer cover, the lower end of the float rod extends downward into the waste liquid storage bottle, a vertically arranged extension rod is connected to the bottom of the internally threaded hole, and the extension rod is sleeved on the lower outer side of the float rod.

[0007] Preferably, a breathable sheet wrapped around the outside of the vertical tube is installed in the external threaded tube, the outer shell is filled with activated carbon particles, an air hole is opened at the upper position of the outer end wall of the outer shell, and a first through hole connected to the internal threaded hole is opened at the bottom of the inner cover.

[0008] Preferably, a spiral blade disposed in the outer shell is fixedly mounted on the outer end wall of the vertical pipe, and the outer size of the spiral blade is matched with the inner size of the outer shell.

[0009] Preferably, a plurality of second through holes are provided, and a connector is plugged into the upper end of each second through hole, and the connector is made of corrosion-resistant rubber.

[0010] Preferably, the external threaded pipe is screwed into the internal threaded hole, the inner cover is configured as a cylindrical structure, the outer cover is movably sleeved on the outside of the inner cover, and a limiting ring for blocking the outer cover is fixed around the bottom of the inner cover.

[0011] Preferably, a guide bar arranged below the second through hole is fixedly mounted on the bottom of the inner cover, and the lower end of the guide bar is arranged as an arc-shaped structure bent outward, and the guide bar is made of a corrosion-resistant elastic alloy.

[0012] Preferably, the extension rod includes an inner tube threadedly connected to the bottom of the internal threaded hole, and the outer end of the inner tube is slidably sleeved with an outer tube, and the upper end of the outer tube is fixedly mounted with a plurality of surrounding clips, and the wall thickness of the clips gradually increases from bottom to top, and the outer sides of the plurality of clips are commonly threadedly sleeved with a threaded sleeve.

[0013] Preferably, the float rod includes a first rod body movably inserted in the vertical tube, and the top end of the first rod body is fixedly connected to the slider, a second rod body is movably inserted in the inner tube and the outer tube, and the top end of the second rod body is threadedly screwed with the bottom end of the first rod body, a float body arranged below the extension rod is slidably sleeved on the second rod body, and a bolt is threadedly screwed on the float body, and the bolt points vertically to the outer surface of the second rod body.

[0014] Preferably, a vertically arranged limiting rod is fixedly mounted on the inner end wall of the vertical hole, and a limiting groove adapted to the limiting rod is vertically opened on the outer end wall of the sliding block.

[0015] Preferably, sealing rings are fitted between the protective shell and the control board, between the battery box and the battery cover, between the connecting ring and the external threaded tube, between the inner cover and the waste liquid storage bottle, and between the vertical tube and the inner tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a floating ball rod which can move up and down is installed under the device and extends downward into the waste liquid storage bottle. When the waste liquid in the waste liquid storage bottle is collected to the position below the floating ball rod, the floating ball rod will rise with the continuous entry of the waste liquid, driving the plug to be inserted into the sensor socket, triggering an alarm signal, and notifying the staff to handle the waste liquid in time. During the monitoring and alarm process, the plug and the sensor socket for feedback signals do not directly contact the waste liquid, thereby ensuring the stability of the operation of the device system. At the same time, the device is installed on the bottle mouth of the waste liquid storage bottle by screwing the outer cover and the waste liquid storage bottle, replacing the original bottle cap of the waste liquid storage bottle, so that the device can be flexibly disassembled. After the waste liquid is collected, it can be disassembled and assembled on the waste liquid storage bottle of the next batch, thereby realizing the non-idle use of the device system, greatly improving the utilization rate of the device system, and being conducive to reducing the cost of early warning of full waste liquid collection in the laboratory. 2. In the present invention, the harmful gas volatilized in the waste liquid in the waste liquid storage bottle will rise into the shell through the connection of the first through hole, the internal threaded hole and the external threaded tube. By filling the shell with activated carbon particles, the harmful gas in the waste liquid can be prevented from volatilizing outwards with the help of the adsorption of the activated carbon particles. At the same time, by arranging the spiral blade in the shell, with the guidance of the spiral blade, the rising path of the waste gas in the shell presents a spiral structure, which can greatly increase the contact time of the waste gas with the activated carbon particles when rising in the shell, which is conducive to ensuring that the harmful substances in the waste gas are fully adsorbed by the activated carbon particles. 3. In the present invention, by arranging the guide bar below the second through hole, the waste liquid can be guided by means of the guide bar. Since the guide bar is elastic and the lower end is arranged to be an arc-shaped structure bent outward, the lower end of the guide bar can always be kept in close contact with the inner end wall of the waste liquid storage bottle, so that the waste liquid can flow downward along the inner end wall of the waste liquid storage bottle under the guidance of the guide bar, avoiding the newly entered waste liquid from directly falling into the waste liquid storage bottle to cause the original waste liquid to be splashed and agitated, which is conducive to ensuring the stability of the waste liquid collected in the waste liquid storage bottle; 4. In the present invention, by screwing the external threaded pipe into the internal threaded hole, and cooperating with the threaded screwing of the outer cover and the waste liquid storage bottle, the outer shell, the inner cover and the waste liquid storage bottle can be flexibly separated, and the outer cover is movably sleeved on the outside of the cylindrical inner cover, so that the management personnel can flexibly replace the outer covers of different sizes according to actual use requirements, so that the device system can be flexibly applicable to waste liquid storage bottles of different calibers, and the lower end position of the float rod can be adjusted by installing an extension rod, so that the device system can adapt to waste liquid storage bottles of different sizes, and the waste liquid collection conditions of different depths in the waste liquid storage bottle can be warned by pre-adjustment, which is conducive to further improving the flexibility of the device system during use; 5. In the present invention, the float rod is composed of a first rod body and a second rod body threadedly connected to each other, and a float body slidably mounted on the second rod body. By replacing the second rod body and adjusting the position of the float body, the float body can be conveniently adjusted to any height position in the waste liquid storage bottle. At the same time, by sliding the outer tube on the outer side of the inner tube and screwing the threaded sleeve on the outer side of the clip up and down, the clip is controlled to lock or loosen the connection between the outer tube and the inner tube. Under the cooperation of each other, it is beneficial to improve the convenience of adjusting the float rod and the extension rod when the device is actually used; 6. In the present invention, the display screen adopts low-power ink screen display technology, and with the touch and pressure of the switch button and the timing unit integrated on the control panel, the single use time of the device system and the use time of the activated carbon particles can be displayed on the display screen, which is convenient for the management personnel to understand the waste liquid collection in the waste liquid storage bottle more intuitively and clearly, and the low-power operation allows the device system to have a long battery life. At the same time, with the sound and light alarm integrated on the control panel, it can not only alarm when the waste liquid is full, but also alarm when the waste liquid collection time is too long, the activated carbon particles need to be replaced, and the battery needs to be replaced, which improves the management convenience of relevant personnel to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a disassembled diagram of the structure inside the housing of the present invention; Figure 2 The disassembled diagram of the float rod, inner cover, outer cover and extension rod of the present invention; Figure 3 A perspective view of the present invention; Figure 4 This is a three-dimensional view of the upper cover of the present invention from the top perspective; Figure 5 The figure is a disassembled view of the protective shell, the upper cover and the vertical pipe of the present invention; Figure 6 This is a disassembled diagram of the sensor socket and plug of the present invention; Figure 7 A three-dimensional diagram of the present invention installed on a waste liquid storage bottle; Figure 8 For the present invention Figure 7 A cross-sectional view of the structure; Fig. 9 For the present invention Figure 3 The stereoscopic view of the middle structure from the bottom perspective after the guide bar and adjustable float rod and extension rod are installed; Fig.10 A three-dimensional diagram of the float rod and the extension rod of the present invention; Fig.11 This is a disassembled diagram of the float rod of the present invention; Fig.12 This is a disassembled diagram of the extension rod of the present invention; Fig.13 For the present invention Fig. 9 A cross-sectional view of the middle structure installed on a waste liquid storage bottle; Fig.14 For the present invention Fig.13 Enlarged view of point A in the middle.

[0018] Serial number in the picture: 1. Protective shell; 101. Control panel; 102. Upper cover; 103. Display screen; 104. Switch button; 105. Sensor socket; 106. Connecting ring; 107. Battery box; 108. Battery cover; 2. Shell; 201. Externally threaded pipe; 202. Vertical pipe; 203. Spiral blade; 204. Breathable sheet; 205. Air hole; 3. Float rod; 301. first rod body; 302. second rod body; 303. float body; 304. bolt; 4. Plug; 401. Vertical hole; 402. Slider; 403. Limit rod; 404. Limit groove; 5. Inner cover; 501. Internal threaded hole; 502. First through hole; 503. Second through hole; 504. Joint; 505. Outer cover; 506. Limiting ring; 507. Guide strip; 6. Waste liquid storage bottle; 7. Extension rod; 701. Inner tube; 702. Outer tube; 703. Clip; 704. Screw sleeve; 8. Sealing ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: This example provides a laboratory waste liquid collection early warning system, see Figure 1 - Fig.14 Specifically, it includes a protective shell 1, a control board 101 is fixedly installed in the protective shell 1, the top of the protective shell 1 is fixedly covered with an upper cover 102, and a display screen 103 and a switch button 104 are fixedly inlaid on the upper cover 102, a sensor socket 105 is integrated on the control board 101, a connecting ring 106 corresponding to the sensor socket 105 is fixedly installed on the bottom of the protective shell 1, a battery box 107 is installed at the bottom of the control board 101, and a battery cover 108 is engaged with the battery box 107, an outer shell 2 is sleeved below the protective shell 1, and an external threaded tube 201 arranged just below the connecting ring 106 is fixedly connected to the bottom of the outer shell 2, a vertical tube 202 is inserted between the connecting ring 106 and the external threaded tube 201, and a vertical tube 202 is movably inserted into the vertical tube 202 and penetrates downward to the outer shell 2 The float rod 3 below has a plug 4 adapted to the sensor socket 105 installed on the top of the float rod 3, a vertical hole 401 is provided at the top of the vertical pipe 202, and a slider 402 fixedly connected between the float rod 3 and the vertical hole 401 is slidably installed in the vertical hole 401, an inner cover 5 is connected below the external threaded tube 201, and an internal threaded hole 501 corresponding to the vertical pipe 202 is provided in the inner cover 5, a second through hole 503 which passes through from top to bottom is provided in the inner cover 5, an outer cover 505 is sleeved on the outer side of the inner cover 5, and a waste liquid storage bottle 6 is screwed on the lower thread of the outer cover 505, the lower end of the float rod 3 extends downward into the waste liquid storage bottle 6, a vertically arranged extension rod 7 is connected below the internal threaded hole 501, and the extension rod 7 is sleeved on the lower outer side of the float rod 3.

[0021] When using the device system to warn of waste liquid in the laboratory, the manager installs the device on the waste liquid storage bottle 6 by screwing the outer cover 505 with the thread of the waste liquid storage bottle 6, and connects the connector 504 to the laboratory waste liquid pump supply pipeline. The battery installed in the battery box 107 provides power supply for the device. The control panel 101 is equipped with a timing unit and an audible and visual alarm. During initial use, the manager long presses the switch button 104 to start the device, and the timing unit on the control panel 101 starts and begins a timing operation lasting up to six months. The display screen 103 adopts low-power ink screen display technology, which can display the usage time of the device on the display screen 103, so that the manager can intuitively and clearly understand the usage time of the device. During this time period, the laboratory waste liquid pump supply pipeline can discharge waste liquid into the waste liquid storage bottle 6 through the connection of the connector 504 and the second through hole 503, so that the laboratory waste liquid is collected in the waste liquid storage bottle 6.

[0022] When the device has been used for six months, under the control of the control board 101, the sound and light alarm mounted thereon will be activated, and through sound and light flashing, an alarm will be sounded in time to notify the management personnel to handle the problem. When the waste liquid in the waste liquid storage bottle 6 reaches the bottom of the float rod 3, the float rod 3 will rise upward under the buoyancy of the waste liquid, driving the plug 4 connected to the top of the float rod 3 to move upward and insert it into the sensor socket 105 from bottom to top, so that a feedback signal is triggered in the sensor socket 105. The relevant feedback signal is transmitted to the control board 101. After processing, it is determined that the waste liquid collected in the waste liquid storage bottle 6 has reached the preset position. At this time, the control board 101 will control the sound and light alarm to sound an alarm in time, notifying the management personnel to handle the waste liquid in the waste liquid barrel in time.

[0023] When the battery in the battery box 107 is about to be unable to provide sufficient power for the device, the control panel 101 will also control the sound and light alarm to perform an alarm operation, reminding the management personnel to replace the battery in time. The alarm will be triggered when the device has been used for six months, when the waste liquid storage bottle 6 is full of waste liquid, and when the battery power is about to run out. The audio and light flashing frequencies of the triggered sound and light alarm are different, which is convenient for the management personnel to accurately distinguish different types of alarms, thereby helping to improve the convenience of management personnel when actually performing related management and maintenance.

[0024] The upper cover 102 and the outer shell 2 are connected by a snap buckle, and the battery cover 108 and the battery box 107 are connected by a snap buckle. When replacing the battery, the administrator can separate the upper cover 102 and the outer shell 2, and then remove the battery cover 108 from the battery box 107. There are two battery compartments in the battery box 107, namely the main battery compartment and the auxiliary battery compartment. The main battery compartment and the auxiliary battery compartment can both supply power to the device. The number of batteries loaded in the main battery compartment is greater than the number of batteries loaded in the auxiliary battery compartment. In daily use, the main battery compartment is used to provide power support for the device, and the auxiliary battery compartment is in an empty state. When the battery in the main battery compartment is exhausted and needs to be replaced, the administrator first loads the spare battery in the auxiliary battery compartment, so that the auxiliary battery compartment provides power support for the device. Subsequently, the administrator replaces the battery in the main battery compartment with a new one, and then takes out the spare battery in the auxiliary battery compartment. This operation ensures that the timing operation of the device will not be interrupted due to lack of power when the battery is replaced, which is beneficial to ensuring the stability of the device during use.

[0025] During the use of the device, the position of the lower end of the float body 303 can be adjusted by adjusting the extension rod 7 to meet the monitoring needs of waste liquid at different liquid levels in the waste liquid storage bottle 6. The extension rod 7 is connected below the internal threaded hole 501, and the lower end of the float rod 3 is movably inserted into the extension rod 7. With the help of the extension rod 7 to limit the float rod 3, the stability of the float rod 3 being lifted up and down by the buoyancy of the waste liquid is guaranteed.

[0026] In the specific implementation process, Figure 1 and Figure 8As shown, a breathable sheet 204 wrapped around the outside of the vertical pipe 202 is installed in the external threaded tube 201, the shell 2 is filled with activated carbon particles, an air hole 205 is opened at the upper position of the outer end wall of the shell 2, and a first through hole 502 connected to the internal threaded hole 501 is opened at the bottom of the inner cover 5, and a spiral leaf 203 arranged in the shell 2 is fixedly installed on the outer end wall of the vertical pipe 202, and the outer size of the spiral leaf 203 is adapted to the inner size of the shell 2. During the use of the device, waste liquid is continuously collected in the waste liquid storage bottle 6, and the waste gas in the waste liquid rises and enters the internal threaded hole 501 through the first through hole 502, and then the rising waste gas passes through the breathable sheet 2 installed in the external threaded tube 201. 04 enters the shell 2, and is filtered and adsorbed by the activated carbon particles filled in the shell 2 during the subsequent rising process, which can prevent harmful gases in the waste liquid from volatilizing outwards. At the same time, when using activated carbon particles to adsorb the exhaust gas, since the spiral blades 203 are arranged in the shell 2, with the guidance of the spiral blades 203, the rising path of the exhaust gas in the shell 2 presents a spiral structure, which can greatly increase the contact time between the exhaust gas and the activated carbon particles when rising in the shell 2, which is beneficial to ensuring that the harmful substances in the exhaust gas are fully adsorbed by the activated carbon particles, avoiding the corrosive exhaust gas from corroding and damaging the electronic components in the device after rising, and is beneficial to ensuring the long-term stable operation of the device system.

[0027] To ensure the stability of the activated carbon particles in the adsorption of harmful substances in the exhaust gas, the activated carbon particles filled in the shell 2 need to be replaced every six months of use. The display screen 103 will display the usage time of the activated carbon particles. When the usage time of the activated carbon particles reaches six months, the control panel 101 will control the sound and light alarm to alarm, reminding the management personnel to replace the activated carbon particles. The audio and light flashing frequency of this alarm are also different from other alarms, which helps the management personnel to distinguish. When replacing the activated carbon particles, the management personnel disassemble the upper cover 102 and the shell 2, and replace the used activated carbon particles in the shell 2. After the activated carbon particles are replaced, the management personnel presses the switch button 104 to re-time the usage time of the activated carbon particles. In this device, due to the quick-insert separation structure between the connecting ring 106 and the external threaded tube 201, and the sensor socket 105 and the plug 4, the upper cover 102 can be quickly separated from the shell 2, which is convenient for replacing the battery and activated carbon particles.

[0028] In the specific implementation process, Fig. 9 and Fig.13As shown, a plurality of second through holes 503 are provided, and a connector 504 is plugged into the upper end of each second through hole 503, and the connector 504 is made of corrosion-resistant rubber. A guide bar 507 arranged below the second through hole 503 is fixedly installed on the bottom of the inner cover 5, and the lower end of the guide bar 507 is arranged to be an arc-shaped structure bent outward, and the guide bar 507 is made of corrosion-resistant elastic alloy. During the use of the device system, since a plurality of second through holes 503 are provided, the waste liquid storage bottle 6 corresponding to the device can be connected to a plurality of waste liquid pump supply pipelines to realize the collection of a plurality of non-reactive waste liquids together. The upper end of the connector 504 can be plugged with a transfer tube to facilitate the communication between the hose in the waste liquid pump supply pipeline and the second through hole 503. The connector 504 on the second through hole 503 that is not connected to the waste liquid pump supply pipeline can be sealed by inserting a plug. Since the connector 504 is made of corrosion-resistant rubber material, it can fill the gap at the connection after being squeezed and deformed, which is conducive to ensuring the sealing of the pipeline connection.

[0029] When the waste liquid flows downward into the waste liquid storage bottle 6 through the second through hole 503, the guide bar 507 installed below the second through hole 503 can guide the waste liquid. Since the lower end of the guide bar 507 is set to a circular arc structure bent outward, and the guide bar 507 is made of a corrosion-resistant elastic alloy, the lower end of the guide bar 507 can always remain in close contact with the inner end wall of the waste liquid storage bottle 6. Under the guidance of the guide bar 507, the waste liquid flowing out from the lower end of the second through hole 503 can flow downward along the inner end wall of the waste liquid storage bottle 6, thereby preventing the newly entered waste liquid from falling directly into the waste liquid storage bottle 6 and causing the original waste liquid to be splashed and agitated, which is beneficial to ensuring the stability of the waste liquid collected in the waste liquid storage bottle 6.

[0030] In the specific implementation process, Figure 2 and Figure 8 As shown, the external threaded tube 201 is screwed into the internal threaded hole 501, the inner cover 5 is set to a cylindrical structure, the outer cover 505 is movably sleeved on the outside of the inner cover 5, and a limiting ring 506 for blocking the outer cover 505 is fixed around the bottom of the inner cover 5. During the use of the device, the outer cover 505 is screwed into the thread of the waste liquid storage bottle 6 below to realize the connection between the device system and the waste liquid storage bottle 6. Since the external threaded tube 201 is screwed into the internal threaded hole 501, the outer shell 2 and the inner cover 5 can be connected. The connection and separation are achieved by means of the threaded connection between the external threaded tube 201 and the internal threaded hole 501. Since the outer cover 505 is movably sleeved on the outside of the cylindrical inner cover 5, after the outer shell 2 and the inner cover 5 are separated, the outer cover 505 can be slid upward to be removed from the inner cover 5, so that the management personnel can flexibly replace the outer covers 505 of different sizes according to actual use requirements, thereby making the device system flexibly applicable to waste liquid storage bottles 6 of different calibers, thereby improving the flexibility of the device in actual use to a certain extent.

[0031] In the specific implementation process, Fig. 9 - Fig.14 As shown, the extension rod 7 includes an inner tube 701 threadedly screwed under the internal threaded hole 501, and the outer side of the lower end of the inner tube 701 is slidably sleeved with an outer tube 702, and the upper end of the outer tube 702 is fixedly installed with a plurality of surrounding clips 703, and the wall thickness of the clips 703 gradually increases from bottom to top, and the outer sides of the plurality of clips 703 are commonly threadedly sleeved with a screw sleeve 704, and the float rod 3 includes a first rod body 301 movably inserted in the vertical tube 202, and the top of the first rod body 301 is fixedly connected to the slider 402, and the inner tube 701 and the outer tube A second rod body 302 is movably inserted in 702, and the top end of the second rod body 302 is threadedly screwed with the bottom end of the first rod body 301, a float body 303 arranged below the extension rod 7 is slidably sleeved on the second rod body 302, and a bolt 304 is threadedly screwed on the float body 303, and the bolt 304 points vertically to the outer surface of the second rod body 302, a vertically arranged limit rod 403 is fixedly installed on the inner end wall of the vertical hole 401, and a limit groove 404 adapted to the limit rod 403 is vertically opened on the outer end wall of the slider 402.

[0032] Since the first rod body 301 and the second rod body 302 are threadedly connected, the first rod body 301 and the second rod body 302 can be flexibly disassembled and assembled according to needs, which not only makes the existence of the float rod 3 not affect the disassembly of the outer shell 2 and the inner cover 5, but also makes the device flexibly replace the second rod body 302 of different lengths according to actual use needs, and flexibly adjust the installation range of the float body 303. When the first rod body 301 and the second rod body 302 are threadedly connected, since the limiting rod 403 is vertically fixed in the vertical hole 401, and a limiting groove 404 adapted to the limiting rod 403 is opened on the slider 402, the slider 402 can only slide up and down in the vertical hole 401, and cannot rotate radially. The first rod body 301 can only move up and down but cannot rotate radially, thereby ensuring the stability of the threaded connection between the first rod body 301 and the second rod body 302. When adjusting the position of the float body 303, the bolt 304 can be rotated to loosen and the position of the float body 303 can be adjusted by sliding up and down. After the position adjustment of the float body 303 is completed, the bolt 304 is tightened again to fix the position of the float body 303. The float body 303 can be adjusted to different heights in the waste liquid storage bottle 6. By floating the float body 303 at different positions and heights, the float rod 3 is driven to trigger the sensor socket 105 to monitor the waste liquid in the waste liquid storage bottle 6, which is beneficial to improving the application scope of the device.

[0033] When the float rod 3 is adjusted, the extension rod 7 can be adjusted to make the extension rod 7 fit with the adjusted float rod 3. The manager rotates the screw sleeve 704 and uses the threaded connection between the screw sleeve 704 and the clip 703 to move the screw sleeve 704 downward on the clip 703, loosening the restraint on the upper end of the clip 703 so that the multiple clips 703 are no longer locked on the outside of the inner tube 701. In this state, the manager can flexibly adjust the position of the inner tube 701 and the outer tube 702, and flexibly adjust the total length of the extension rod 7 according to actual usage requirements. When the relative position of the inner tube 701 and the outer tube 702 is determined, After fixing, the manager rotates the screw sleeve 704 in the opposite direction, so that the screw sleeve 704 moves upward along the clamp 703. Since the wall thickness of the clamp 703 gradually increases from bottom to top, the screw sleeve 704 can gather multiple clamps 703 after the position is raised, and then the clamp 703 is locked on the outside of the inner tube 701, so that the relative position of the inner tube 701 and the outer tube 702 is fixed, and the sliding adjustment between the inner tube 701 and the outer tube 702 is fast and convenient. After the clamp 703 and the screw sleeve 704 cooperate with each other, the position of the inner tube 701 and the outer tube 702 can be fixed, so that the actual length of the extension rod 7 can be adjusted flexibly and conveniently.

[0034] In the specific implementation process, Figure 2 , Figure 5 and Figure 8 As shown, sealing rings 8 are adapted to be installed between the protective shell 1 and the control board 101, between the battery box 107 and the battery cover 108, between the connecting ring 106 and the external threaded tube 201, between the inner cover 5, the outer cover 505 and the waste liquid storage bottle 6, and between the vertical pipe 202 and the inner tube 701. During the use of the device, the setting of the above-mentioned sealing ring 8 can not only ensure the sealing stability between the inner cover 5, the outer cover 505 and the waste liquid storage bottle 6, but also completely seal and isolate the protective shell 1, the control board 101 and the float rod 3 to prevent the hazardous waste gas in the waste liquid storage bottle 6 from corroding the circuit, which is beneficial to ensuring the stability of the long-term operation of the device system.

[0035] Specifically, the working principle and operation method of the present invention are as follows: When the device is installed on the waste liquid storage bottle 6, the management personnel can replace the outer cover 505 that is adapted thereto according to the caliber of the waste liquid storage bottle 6, and adapt the float rod 3 and the extension rod 7 according to the total amount of waste liquid to be stored in the waste liquid storage bottle 6, and then realize the installation and use of the device by screwing the outer cover 505 and the waste liquid storage bottle 6. When in use, the waste liquid is pumped into the waste liquid storage bottle 6 through the second through hole 503, and with the guidance of the guide strip 507 below the second through hole 503, the waste liquid can slide downward along the inner end wall of the waste liquid storage bottle 6. During the floating process of the hazardous waste gas in the waste liquid collected in the waste liquid storage bottle 6, it enters the outer shell 2 through the connection of the first through hole 502, the internal threaded hole 501 and the external threaded tube 201, and is adsorbed by the activated carbon particles filled in the outer shell 2. With the guidance of the second through hole 503, the waste gas can float upward. The ascending path is a spiral structure, which increases the contact time between the exhaust gas and the activated carbon particles during the ascending process, ensuring that the exhaust gas is fully absorbed. During use, the display screen 103 installed on the upper cover 102 can display the usage time of the device in real time, and display the usage time of the activated carbon particles in the outer shell 2. When the single use time of the device reaches six months, or the usage time of the activated carbon particles reaches six months, the control board 101 will control the sound and light alarm to alarm. When the waste liquid collected in the waste liquid storage bottle 6 reaches a preset height, the buoyancy provided by the waste liquid is used to move the float rod 3 upward, driving the plug 4 to be inserted into the sensor socket 105 to trigger an alarm, reminding the management personnel to deal with the waste liquid in time. When the battery power in the battery box 107 is about to run out, the alarm will also be triggered to remind the management personnel to replace the battery in time to achieve stable operation of the device system.

[0036] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laboratory waste liquid collection early warning system, comprising a protective shell (1), characterized in that: A control panel (101) is fixedly mounted in the protective shell (1), the top of the protective shell (1) is fixedly covered with an upper cover (102), and a display screen (103) and a switch button (104) are fixedly embedded on the upper cover (102), a sensor socket (105) is integrated on the control panel (101), a connecting ring (106) corresponding to the sensor socket (105) is fixedly mounted on the bottom of the protective shell (1), a battery box (107) is mounted on the bottom of the control panel (101), and a battery cover (108) is engaged with the battery box (107), an outer shell (2) is sleeved below the protective shell (1), and an externally threaded tube (201) arranged directly below the connecting ring (106) is fixedly connected to the bottom of the outer shell (2), a vertical tube (202) is inserted between the connecting ring (106) and the externally threaded tube (201), and a floating ball rod that penetrates downward to the bottom of the outer shell (2) is movably inserted in the vertical tube (202). (3), a plug (4) adapted to the sensor socket (105) is installed at the top of the float rod (3), a vertical hole (401) is opened at the top of the vertical tube (202), and a slider (402) fixedly connected between the float rod (3) and the vertical hole (401) is slidably installed in the vertical hole (401), and an inner cover (5) is connected to the bottom of the externally threaded tube (201), and an internal thread corresponding to the vertical tube (202) is opened through the inner cover (5). The inner cover (5) is provided with a second through hole (503) extending vertically therethrough, the outer side of the inner cover (5) is sleeved with an outer cover (505), and a waste liquid storage bottle (6) is screwed to the lower part of the outer cover (505), the lower end of the float rod (3) extends downward into the waste liquid storage bottle (6), and a vertically arranged extension rod (7) is connected to the lower part of the inner threaded hole (501), and the extension rod (7) is sleeved on the lower outer side of the float rod (3).

2. A laboratory waste liquid collection early warning system according to claim 1, characterized in that: A breathable sheet (204) wrapped around the outside of the vertical tube (202) is installed in the externally threaded tube (201), activated carbon particles are filled in the outer shell (2), an air hole (205) is provided at the upper position of the outer end wall of the outer shell (2), and a first through hole (502) communicating with the internally threaded hole (501) is provided at the bottom of the inner cover (5).

3. A laboratory waste liquid collection early warning system according to claim 2, characterized in that: A spiral blade (203) disposed inside the outer shell (2) is fixedly mounted on the outer end wall of the vertical tube (202), and the outer dimensions of the spiral blade (203) are adapted to the inner dimensions of the outer shell (2).

4. A laboratory waste liquid collection early warning system according to claim 1, characterized in that: A plurality of the second through holes (503) are provided, and a connector (504) is plugged into the upper end of each of the second through holes (503), and the connector (504) is made of corrosion-resistant rubber.

5. A laboratory waste liquid collection early warning system according to claim 1, characterized in that: The external threaded tube (201) is threadedly connected to the internal threaded hole (501); the inner cover (5) is configured as a cylindrical structure; the outer cover (505) is movably sleeved on the outer side of the inner cover (5); and a limiting ring (506) is fixed around the bottom of the inner cover (5) for blocking the outer cover (505).

6. A laboratory waste liquid collection early warning system according to claim 4, characterized in that: A guide bar (507) arranged below the second through hole (503) is fixedly mounted on the bottom of the inner cover (5), and the lower end of the guide bar (507) is arranged as an outwardly curved arc structure, and the guide bar (507) is made of a corrosion-resistant elastic alloy.

7. A laboratory waste liquid collection early warning system according to claim 6, characterized in that: The extension rod (7) comprises an inner tube (701) threadedly connected to the lower side of the inner threaded hole (501), and an outer tube (702) is slidably sleeved on the outer side of the lower end of the inner tube (701), and a plurality of surrounding clips (703) are fixedly mounted on the upper end of the outer tube (702), and the wall thickness of the clips (703) gradually increases from bottom to top, and a screw sleeve (704) is commonly threadedly sleeved on the outer sides of the plurality of clips (703).

8. A laboratory waste liquid collection early warning system according to claim 7, characterized in that: The float rod (3) comprises a first rod body (301) movably inserted into the vertical tube (202), and the top end of the first rod body (301) is fixedly connected to the slider (402), a second rod body (302) is movably inserted into the inner tube (701) and the outer tube (702), and the top end of the second rod body (302) is threadedly connected to the bottom end of the first rod body (301), a float body (303) arranged below the extension rod (7) is slidably sleeved on the second rod body (302), and a bolt (304) is threadedly connected to the float body (303), and the bolt (304) is vertically pointed to the outer surface of the second rod body (302).

9. A laboratory waste liquid collection early warning system according to claim 1, characterized in that: A vertically arranged limiting rod (403) is fixedly mounted on the inner end wall of the vertical hole (401), and a limiting groove (404) adapted to the limiting rod (403) is vertically opened on the outer end wall of the sliding block (402).

10. A laboratory waste liquid collection early warning system according to claim 1, characterized in that: Sealing rings (8) are fitted between the protective shell (1) and the control panel (101), between the battery box (107) and the battery cover (108), between the connecting ring (106) and the external threaded tube (201), between the inner cover (5) and the waste liquid storage bottle (6), and between the vertical tube (202) and the inner tube (701).

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