CN114300772A - Electrolyte liquid level indicating device for explosion-proof special lead-acid storage battery - Google Patents

Electrolyte liquid level indicating device for explosion-proof special lead-acid storage battery Download PDF

Info

Publication number
CN114300772A
CN114300772A CN202111658476.0A CN202111658476A CN114300772A CN 114300772 A CN114300772 A CN 114300772A CN 202111658476 A CN202111658476 A CN 202111658476A CN 114300772 A CN114300772 A CN 114300772A
Authority
CN
China
Prior art keywords
liquid level
explosion
section
acid storage
electrolyte
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111658476.0A
Other languages
Chinese (zh)
Other versions
CN114300772B (en
Inventor
靳斌
毛玉生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huainan Tongba Storage Battery Co ltd
Original Assignee
Huainan Tongba Storage Battery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huainan Tongba Storage Battery Co ltd filed Critical Huainan Tongba Storage Battery Co ltd
Priority to CN202111658476.0A priority Critical patent/CN114300772B/en
Publication of CN114300772A publication Critical patent/CN114300772A/en
Application granted granted Critical
Publication of CN114300772B publication Critical patent/CN114300772B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Filling, Topping-Up Batteries (AREA)

Abstract

The invention discloses an electrolyte liquid level indicating device of an explosion-proof special lead-acid storage battery, which relates to the technical field of lead-acid storage batteries. The annular liquid level port of each liquid level section is used as a reference object for observing the liquid level of the electrolyte in the battery, when the liquid supplement reaches the annular liquid level port, the liquid supplement is stopped, and the connecting mechanism is embedded in the buckle connecting gap between the exhaust bolt and the water adding hole of the battery, so that the phenomenon of falling off in the using process is ensured.

Description

Electrolyte liquid level indicating device for explosion-proof special lead-acid storage battery
Technical Field
The invention relates to the technical field of lead-acid storage batteries, in particular to an electrolyte level indicating device for an explosion-proof special lead-acid storage battery.
Background
The explosion-proof special lead-acid storage battery is widely applicable to explosive environments, and the maintenance and use conditions of the storage battery are directly related to the performance and safety of the storage battery. Control of the level of battery electrolyte during maintenance is important. Electrolyte is low excessively and can cause the damage of battery, and the electrolyte appears spilling over the phenomenon after too high, causes the outside short circuit of battery, forms and strikes sparks, influences battery safety performance. Because the explosion-proof special lead-acid storage battery must adopt a special exhaust bolt type water adding cap, and the explosion-proof standard stipulates that the special exhaust bolt type water adding cap is in a fixed mode, a liquid level indication protective net cannot be integrated on the special exhaust bolt, the existing electrolyte control mode mostly adopts a visual observation method, the accuracy rate of the mode is low, the misjudgment on the electrolyte liquid level is easily caused, and the battery is damaged.
Disclosure of Invention
The invention aims to provide an electrolyte level indicating device of an explosion-proof special lead-acid storage battery, which is simple in structure and convenient and fast to use, is embedded in a buckle connecting gap between an exhaust bolt and a water filling hole of the battery and can be used for accurately judging the liquid level condition of the electrolyte.
The invention adopts the following technical scheme: an electrolyte level indicating device of an explosion-proof special lead-acid storage battery comprises a barrel, a conical structure and at least two liquid level sections, wherein the conical structure is provided with a plurality of sections, the outer diameter of each section is gradually decreased from top to bottom, each liquid level section consists of an annular liquid level opening and a section body which is connected to the bottom of the annular liquid level opening in a surrounding manner, and the bottom of the section body of each liquid level section is connected to the outer wall of the annular liquid level opening of the next liquid level section in a surrounding manner; the nozzle is located the top of barrel, the nozzle is equipped with spacing ring and at least a pair of coupling mechanism, the spacing ring sets up the top of nozzle just is equipped with the filling opening, at least a pair of coupling mechanism's first end symmetric connection be in the ring body bottom of spacing ring, second end symmetric connection is located on the outer wall of the annular liquid level mouth of the liquid level section at barrel top.
As an optimization scheme, the section body part can be selectively arranged into a strip-shaped net leaking surface consisting of a plurality of strip-shaped liquid level columns or a round hole net leaking surface densely provided with a plurality of small round holes.
As an optimized scheme, gaps among the strip-shaped liquid level columns are not more than 2 mm.
As an optimized scheme, the diameter of the tiny round hole is not more than 2 mm.
As an optimized scheme, each connecting mechanism comprises a clamping plate and a buffer plate, the plate body of each clamping plate is arc-surface-shaped, the upper end of each clamping plate is connected to the bottom of the ring body of the limiting ring and close to the inner side, the lower end of each clamping plate is connected with the end part of the buffer plate, the outer wall of each clamping plate is provided with an anti-tripping device, and a clamping space is formed between the anti-tripping device and the outer side of the ring body of the limiting ring; the buffer board is equipped with the outside extension section of level, the extension section with be the acute angle setting between the grip block, and be equipped with the segmental arc in the junction of the two.
As an optimization scheme, the distance between the annular liquid level port of the liquid level section positioned at the top of the cylinder and the liquid adding port is 20-30 mm.
As an optimized scheme, the electrolyte level indicating device of the explosion-proof special lead-acid storage battery is integrally formed by injection molding of polypropylene.
Compared with the prior art, the invention has the advantages that:
the invention provides an electrolyte level indicating device of an explosion-proof special lead-acid storage battery, which adopts a conical barrel-shaped design, can be embedded into the battery and comprises at least two liquid level sections, wherein an annular liquid level port of each liquid level section is used as a reference for observing the liquid level of the electrolyte in the battery, and when the liquid supplement reaches the annular liquid level port, the liquid supplement needs to be stopped, so that the device is simple and convenient. Meanwhile, the connecting mechanism is embedded in a buckle connecting gap between the venting bolt and the water filling hole of the battery, so that the structure is more stable, and the phenomenon that the venting bolt drops in the using process is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of an electrolyte level indicating device of an explosion-proof special lead-acid storage battery in a use state;
FIG. 2 is a top view of an embodiment of the electrolyte level indicating device of the explosion-proof special lead-acid storage battery of the invention;
FIG. 3 is a schematic view of the surface A-A of an embodiment of the electrolyte level indicating device of the explosion-proof special lead-acid storage battery of the invention;
FIG. 4 is a schematic structural view of the coupling mechanism of the present invention;
the device comprises a barrel 1, a liquid level section 2, a barrel opening 3, an annular liquid level opening 21, a section body 22, a strip-shaped liquid level column 23, a limiting ring 31, a connecting mechanism 32, a liquid filling opening 33, a clamping plate 34, a buffer plate 35, an anti-tripping operation 36, an extending section 37 and an arc section 38.
Detailed Description
Hereinafter, in order to facilitate the technical solution of the present invention for those skilled in the art to understand, further description will be made with reference to the accompanying drawings. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1-4, an embodiment of the electrolyte level indicating device for an explosion-proof special lead-acid battery provided by the invention is shown, the electrolyte level indicating device for an explosion-proof special lead-acid battery integrally adopts polypropylene injection molding, has good toughness and is not easy to break, and comprises a barrel body 1 and a barrel mouth 3, the barrel body 1 is a conical structure with multiple sections and the outer diameter of each section decreases from top to bottom, the barrel body 1 comprises at least two liquid level sections 2, each liquid level section 2 is composed of an annular liquid level port 21 and a section body 22 connected to the bottom of the annular liquid level port 21 in a surrounding manner, the annular liquid level port 21 is used as a reference to form a mark when observing the electrolyte level in the battery, the annular liquid level ports 21 of the two liquid level sections 2 can be set as the lowest liquid level battery and the highest liquid level of the liquid level in the battery, the bottom of the section body 22 of each liquid level section 2 is connected to the outer wall of the annular liquid level port 21 of the next liquid level section 2 in a surrounding manner, forming a sequentially alternating structure. The nozzle 3 is located the top of barrel 1, and nozzle 3 is equipped with spacing ring 31 and at least a pair of coupling mechanism 32, and spacing ring 31 sets up at the top of nozzle 3 and is equipped with filling opening 33, and the first end symmetric connection of at least a pair of coupling mechanism 32 is in the ring bottom of spacing ring 31, and second end symmetric connection is on the outer wall of the annular liquid level mouth 21 of the liquid level section 2 that is located the barrel 1 top.
The electrolyte liquid level indicating device of the explosion-proof special lead-acid storage battery is embedded in a buckle connecting gap between the venting cock and a water filling hole of the battery through the connecting mechanism 32, has stable structure, can be effectively placed to fall off in the using process, is provided with the annular liquid level port 21 in each liquid level section 2, and the annular liquid level port 21 is used as a reference object to form a mark when the electrolyte liquid level inside the battery is observed, so that the observation and the judgment are convenient.
In this embodiment, section body 22 part sets up to the bar that comprises a plurality of bar liquid level post 23 and leaks the net face, and the bar leaks the net face and can be used for preventing that outside debris from falling into inside the battery. Wherein, the clearance between the bar liquid level post 23 is no longer than 2mm, can avoid because of the potential safety hazard that the foreign matter dropped the formation.
In other embodiments, the section body 22 may be a circular hole screen (not shown) densely distributed with a plurality of small circular holes, for preventing external impurities from falling into the battery, and of course, the diameter of the small circular holes may be designed to be not more than 2 mm.
The other innovation point of the electrolyte level indicating device of the explosion-proof special lead-acid storage battery is that the section body of the electrolyte level indicating device is designed into a strip-shaped leakage net surface consisting of a plurality of strip-shaped liquid level columns 23 or a circular hole leakage net surface densely distributed with a plurality of tiny circular holes, foreign matters can be effectively prevented from falling into the battery through the design of the leakage net surface, and potential safety hazards caused by falling of the foreign matters are avoided.
In this embodiment, as shown in fig. 4, each connecting mechanism 32 includes a clamping plate 34 and a buffer plate 35, a plate body of the clamping plate 34 is arc-surface-shaped, the shape of the plate body is adapted to the shape of a fastening connection gap between the venting cock and the battery water filling hole, so that the connecting mechanism 32 can be better attached to the gap, the upper end of the clamping plate 34 is connected to the inner side of the bottom of the ring body of the limiting ring 31, so that the outer side of the bottom of the ring body of the limiting ring 31 can be fastened to the inner wall of the gap, the lower end of the clamping plate 34 is connected to the end of the buffer plate 35, in addition, an anti-releasing buckle 36 is arranged on the outer wall of the clamping plate 34, a clamping space is formed between the anti-releasing buckle 36 and the outer side of the ring body of the limiting ring 31, so that the opening of the inner wall of the gap is completely clamped in the clamping space, the structure is more stable, and it is ensured that the anti-releasing buckle cannot occur in the using process. In addition, buffer board 35 is equipped with the outside extension section 37 of level, and extension section 37 forms the sign of liquid level highest point, and extension section 37 and grip block 34 between become the acute angle setting, and be equipped with segmental arc 38 in the junction of the two, and the acute angle can make grip block 34 further laminate with gap department with segmental arc 38's design, and the structure is more stable.
In this embodiment, the distance between the annular liquid level port 21 and the liquid filling port 33 of the liquid level section at the top of the barrel 1 is 20-30mm, and is generally designed to be 25mm, so that the distance can ensure that the electrolyte leakage phenomenon of the battery can not occur if a vehicle using the battery climbs to a slope of about 20 degrees in the use process of the battery, and the safety performance of the explosion-proof battery is greatly improved. In addition, the position of the bottom of the barrel 1 can be designed according to the space inside the explosion-proof battery, and the barrel is generally designed to be about 10mm away from the upper edge of the positive and negative separators inside the battery to play a buffering role, so that the effect of warning that water needs to be supplemented can be achieved, and the battery cannot be damaged due to the fact that water is not supplemented immediately.
The electrolyte level indicating device for the explosion-proof special lead-acid storage battery provided by the invention adopts a conical cylindrical design, is embedded into the battery and comprises at least two liquid level sections, the annular liquid level port of each liquid level section is used as a reference for observing the liquid level of the electrolyte in the battery, and when the liquid supplement reaches the annular liquid level port, the liquid supplement is required to be stopped, so that the device is simple and convenient. Meanwhile, the special venting bolt and the buckle connection gap between the battery water filling hole are utilized, the connection mechanism is embedded in the special venting bolt, and the vent bolt is well embedded in the battery under the condition that the structure of the venting bolt and the structure of the battery cover water filling hole are not changed. The liquid level indication protective net is embedded into the battery from the water adding hole of the battery, so that the position of the liquid level of the battery can be conveniently observed, and an extension section is formed at the highest liquid level position to make a mark, so that the liquid level indication protective net is more convenient to observe. The biggest aperture clearance of liquid level indicator net is 2mm, and the foreign matter that exceeds 2mm can't drop to the battery inside, has avoided because of the potential safety hazard that the foreign matter dropped the formation.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should be made within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (7)

1. The utility model provides an explosion-proof special type lead acid battery electrolyte liquid level indicating device which characterized in that includes:
the barrel (1) is provided with a plurality of sections of conical structures, the outer diameters of the sections of conical structures are sequentially reduced from top to bottom, the conical structures comprise at least two sections of liquid level sections (2), each liquid level section (2) consists of an annular liquid level opening (21) and a section body (22) which is connected to the bottom of the annular liquid level opening (21) in a surrounding mode, and the bottom of the section body (22) of each liquid level section (2) is connected to the outer wall of the annular liquid level opening (21) of the next liquid level section (2) in the surrounding mode;
nozzle (3), be located the top of barrel (1), nozzle (3) are equipped with spacing ring (31) and at least a pair of coupling mechanism (32), spacing ring (31) set up the top of nozzle (3) just is equipped with filling opening (33), the first end symmetric connection of at least a pair of coupling mechanism (32) is in the ring body bottom of spacing ring (31), second end symmetric connection are located on the outer wall of the annular liquid level mouth (21) at barrel (1) top.
2. The electrolyte level indicating device of the explosion-proof special lead-acid storage battery according to claim 1, wherein the section body (22) is selectively arranged into a strip-shaped screen leaking surface consisting of a plurality of strip-shaped liquid level columns (23) or a round hole screen leaking surface densely provided with a plurality of tiny round holes.
3. The electrolyte level indicator for explosion-proof special type lead-acid storage batteries according to claim 2, characterized in that the gap between the strip-shaped liquid level columns (23) does not exceed 2 mm.
4. The electrolyte level indicating device of the explosion-proof special type lead-acid storage battery as claimed in claim 2, wherein the diameter of the tiny round hole is not more than 2 mm.
5. The electrolyte level indicating device of the explosion-proof special lead-acid storage battery according to claim 2, wherein each connecting mechanism (32) comprises a clamping plate (34) and a buffer plate (35), the plate body of the clamping plate (34) is arc-shaped, the upper end of the clamping plate is connected to the inner side of the bottom of the ring body of the limiting ring (31), the lower end of the clamping plate is connected with the end part of the buffer plate (35), the outer wall of the clamping plate (34) is provided with an anti-tripping device (36), and a clamping space is formed between the anti-tripping device (36) and the outer side of the ring body of the limiting ring (31); the buffer plate (35) is provided with a horizontal outward extension section (37), the extension section (37) and the clamping plate (34) are arranged at an acute angle, and an arc section (38) is arranged at the joint of the extension section and the clamping plate.
6. The electrolyte level indicator for explosion-proof special lead-acid storage batteries according to claim 5, characterized in that the distance between the annular liquid level port (21) at the top liquid level section of the barrel (1) and the liquid filling port (33) is 20-30 mm.
7. The electrolyte level indicating device of the explosion-proof special lead-acid storage battery according to claim 1, which is integrally formed by injection molding of polypropylene.
CN202111658476.0A 2021-12-30 2021-12-30 Electrolyte level indicating device for explosion-proof special lead-acid storage battery Active CN114300772B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111658476.0A CN114300772B (en) 2021-12-30 2021-12-30 Electrolyte level indicating device for explosion-proof special lead-acid storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111658476.0A CN114300772B (en) 2021-12-30 2021-12-30 Electrolyte level indicating device for explosion-proof special lead-acid storage battery

Publications (2)

Publication Number Publication Date
CN114300772A true CN114300772A (en) 2022-04-08
CN114300772B CN114300772B (en) 2024-02-13

Family

ID=80973781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111658476.0A Active CN114300772B (en) 2021-12-30 2021-12-30 Electrolyte level indicating device for explosion-proof special lead-acid storage battery

Country Status (1)

Country Link
CN (1) CN114300772B (en)

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR970094A (en) * 1947-08-16 1950-12-29 Nat Battery Co Improvements to plugs and level indicators for accumulator batteries
JP2008147041A (en) * 2006-12-11 2008-06-26 Gs Yuasa Corporation:Kk Lead storage battery
US20090098444A1 (en) * 2005-12-08 2009-04-16 Hoppecke Batterien Gmbh & Co. Kg Level Monitoring System
CN101540388A (en) * 2009-04-29 2009-09-23 江苏快乐电源有限公司 Multifunctional liquid injection cap of lead acid storage battery for traction
CN201478350U (en) * 2008-12-26 2010-05-19 北京阳光鸿志电气工程技术有限公司 Fully-sealed upper cover structure of lead-acid storage battery
CN201508870U (en) * 2009-09-23 2010-06-16 上海哈登塑料技术有限公司 Acid liquor charging cap of battery
CN101834306A (en) * 2009-03-10 2010-09-15 三洋电机株式会社 Sealed cell and manufacture method thereof
CN102980921A (en) * 2012-11-20 2013-03-20 广东电网公司电力科学研究院 Detection tank system for interface electrochemical reaction
CN103000830A (en) * 2011-09-12 2013-03-27 崔荣龙 Exhaust type acid and flame resistant lead acid storage battery used for electric road vehicles
CN103151474A (en) * 2013-02-07 2013-06-12 晋江华威电源有限公司 Structural improvement of upper cover of intelligent storage battery
JP2015153678A (en) * 2014-02-18 2015-08-24 新神戸電機株式会社 Lead storage battery
CN204706591U (en) * 2015-07-09 2015-10-14 淄博火炬能源有限责任公司 New energy electric automobile-used lead acid accumulator special type fill cap
CN206992215U (en) * 2017-07-24 2018-02-09 南京国轩电池有限公司 Quadrate lithium battery top cover electrolyte replenishing structure
CN112553671A (en) * 2020-12-23 2021-03-26 深圳市优立检测技术服务有限公司 Titanium plating device with surface smoothness detection function for radar antenna processing
CN213067793U (en) * 2020-09-15 2021-04-27 东莞市谨智智能科技有限公司 Liquid level indicating alarm of automatic liquid injection system of integrated lead-acid battery
CN213816244U (en) * 2020-12-30 2021-07-27 淮南市通霸蓄电池有限公司 Liquid level indicating device for electrolyte of flooded lead-acid storage battery
CN214893531U (en) * 2021-06-08 2021-11-26 陕煤集团神南产业发展有限公司 Liquid supplementing water level alarm for lead-acid battery

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR970094A (en) * 1947-08-16 1950-12-29 Nat Battery Co Improvements to plugs and level indicators for accumulator batteries
US20090098444A1 (en) * 2005-12-08 2009-04-16 Hoppecke Batterien Gmbh & Co. Kg Level Monitoring System
JP2008147041A (en) * 2006-12-11 2008-06-26 Gs Yuasa Corporation:Kk Lead storage battery
CN201478350U (en) * 2008-12-26 2010-05-19 北京阳光鸿志电气工程技术有限公司 Fully-sealed upper cover structure of lead-acid storage battery
CN101834306A (en) * 2009-03-10 2010-09-15 三洋电机株式会社 Sealed cell and manufacture method thereof
CN101540388A (en) * 2009-04-29 2009-09-23 江苏快乐电源有限公司 Multifunctional liquid injection cap of lead acid storage battery for traction
CN201508870U (en) * 2009-09-23 2010-06-16 上海哈登塑料技术有限公司 Acid liquor charging cap of battery
CN103000830A (en) * 2011-09-12 2013-03-27 崔荣龙 Exhaust type acid and flame resistant lead acid storage battery used for electric road vehicles
CN102980921A (en) * 2012-11-20 2013-03-20 广东电网公司电力科学研究院 Detection tank system for interface electrochemical reaction
CN103151474A (en) * 2013-02-07 2013-06-12 晋江华威电源有限公司 Structural improvement of upper cover of intelligent storage battery
JP2015153678A (en) * 2014-02-18 2015-08-24 新神戸電機株式会社 Lead storage battery
CN204706591U (en) * 2015-07-09 2015-10-14 淄博火炬能源有限责任公司 New energy electric automobile-used lead acid accumulator special type fill cap
CN206992215U (en) * 2017-07-24 2018-02-09 南京国轩电池有限公司 Quadrate lithium battery top cover electrolyte replenishing structure
CN213067793U (en) * 2020-09-15 2021-04-27 东莞市谨智智能科技有限公司 Liquid level indicating alarm of automatic liquid injection system of integrated lead-acid battery
CN112553671A (en) * 2020-12-23 2021-03-26 深圳市优立检测技术服务有限公司 Titanium plating device with surface smoothness detection function for radar antenna processing
CN213816244U (en) * 2020-12-30 2021-07-27 淮南市通霸蓄电池有限公司 Liquid level indicating device for electrolyte of flooded lead-acid storage battery
CN214893531U (en) * 2021-06-08 2021-11-26 陕煤集团神南产业发展有限公司 Liquid supplementing water level alarm for lead-acid battery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李丽娜;: "正确使用维护 延长蓄电池的使用寿命", 农机使用与维修, no. 07 *

Also Published As

Publication number Publication date
CN114300772B (en) 2024-02-13

Similar Documents

Publication Publication Date Title
CN208334345U (en) A kind of water environment monitoring device
CN114300772A (en) Electrolyte liquid level indicating device for explosion-proof special lead-acid storage battery
CN204085812U (en) Leakage monitoring device
CN213816244U (en) Liquid level indicating device for electrolyte of flooded lead-acid storage battery
CN217719906U (en) Liquid injection protection piece, battery assembly and battery production line
CN205120441U (en) Nearly liquid level gas sampling device
CN201408798Y (en) Acid filling box for formation of accumulator
CN205714166U (en) A kind of borehole imaging instrument probe centering means
CN208862086U (en) One kind being used for battery acid filling acid filling mouth
CN205132138U (en) Surface ball packs
CN210326466U (en) Multiple laser device protector
CN210572263U (en) Water quality monitoring device on water
CN207241962U (en) A kind of marine monitoring instrument
CN212068788U (en) Rubber head dropper
CN203672458U (en) Fuel liquid level sensor
CN203832242U (en) Waterproof device for automobile exhaust pipe
CN112374452B (en) Novel liquid discharge system
CN211045486U (en) Composite material accumulator cover
CN110792132A (en) Water tank liquid level control device
CN216563335U (en) Battery case environmental protection sealing plug
CN213366826U (en) Positive negative pole protective sheath of power
CN220753708U (en) Annotate liquid structure, apron structure and lithium ion battery
CN211593693U (en) Acid-base solution composite storage tank
CN210626438U (en) Sensor protection device of hydrogen leakage detector
CN212033135U (en) Floating charging and acid pumping device for valve-controlled lead-acid storage battery

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant