Automatic acid adding device for lead-acid battery

Abstract

The invention discloses an automatic acid adding device for a lead-acid battery, and belongs to the related technical field of lead-acid battery processing.The automatic acid adding device comprises a fixed base and a lifting frame, the lifting frame is movably installed above the fixed base, and two sets of positioning clamping plates used for positioning the lead-acid battery are movably installed at the position, located on the lower portion of the lifting frame, of the upper end of the fixed base; two sets of material injectors are movably installed on the inner side of the lifting frame, each material injector comprises a sliding frame and a movable sliding block, the movable sliding blocks are installed on the inner side of the sliding frame in a sliding mode, the sliding frames are connected with the lifting frame in a sliding mode, material injection nozzles are formed in the lower portions of the movable sliding blocks, and elastic clamping rings are elastically installed on the outer surfaces of the material injection nozzles; the two-way liquid injection adjusting device is provided with a two-way liquid injection adjusting structure, corresponding adjustment can be conducted according to liquid injection positions of lead-acid batteries of different models, meanwhile, the two-way liquid injection adjusting device is provided with an elastic sealing structure, auxiliary sealing of a liquid injection opening is synchronously completed during acid adding butt joint, and the phenomenon that acid liquid overflows is effectively avoided.

Description

Technical Field

[0001] This invention belongs to the technical field of lead-acid battery processing, specifically an automatic acid-adding device for lead-acid batteries. Background Technology

[0002] An automatic electrolyte filling device for lead-acid batteries is a specialized piece of equipment used to improve the efficiency and safety of battery production and maintenance. Its core function is to replace traditional manual operation by accurately and automatically adding electrolyte (dilute sulfuric acid). This device typically consists of a corrosion-resistant liquid circuit system, a high-precision metering pump (such as a peristaltic pump or diaphragm pump), an intelligent control system (such as a PLC), and a dedicated filling nozzle. It can fill each battery cell to a fixed volume or quantity in a closed or ventilated environment according to a preset program, ensuring consistent electrolyte levels that meet process requirements. It significantly reduces the occupational health risks of manual contact with corrosive electrolytes and avoids problems such as uneven filling or spillage.

[0003] Patent document CN105244469B describes a battery acid-adding device, including an acid-adding pressure plate, an acid-adding pot, and an acid-adding pipe that passes through the acid-adding pressure plate and communicates with the acid-adding pot. The upper edge of the acid-adding pot is provided with a conical protrusion. A sealing gasket is fixedly connected to the bottom surface of the acid-adding pressure plate. When adding acid, the sealing gasket is pressed against the conical protrusion. A rubber nozzle is fitted to the bottom of the acid-adding pot. The rubber nozzle cooperates with the groove around the acid-adding hole on the middle cover. The acid-adding pressure plate and the sealing gasket are provided with through holes. The acid-adding pipe passes through the acid-adding pressure plate and the sealing gasket through the through holes and communicates with the acid-adding pot.

[0004] Existing battery acid filling devices have certain shortcomings in use. These devices mainly inject electrolyte (dilute sulfuric acid) into the lead-acid battery casing. However, different models of lead-acid batteries have different volumes and injection port locations. In the acid injection process, traditional battery acid filling devices cannot flexibly adapt to different battery models. At the same time, some acid is prone to overflow during the acid injection operation, resulting in poor injection sealing. Furthermore, traditional battery acid filling devices lack auxiliary positioning structures, which can easily lead to misalignment of different battery models during acid filling and docking operations, reducing the accuracy of acid filling and docking, and limiting their functionality. Summary of the Invention

[0005] This invention provides an automatic acid-adding device for lead-acid batteries, which solves the problems of existing battery acid-adding devices being unable to flexibly adapt to different battery models, and being prone to acid overflow and poor injection sealing during the acid-adding operation. An automatic acid filling device for lead-acid batteries includes a fixed base and a lifting frame. The lifting frame is movably mounted above the fixed base. Two sets of positioning plates for positioning lead-acid batteries are movably mounted on the upper end of the fixed base, located below the lifting frame. Two sets of injectors are movably mounted on the inner side of the lifting frame. Each injector includes a sliding frame and a movable slider. The movable slider is slidably mounted on the inner side of the sliding frame. The sliding frame and the lifting frame are slidably connected. An injection nozzle is provided at the lower part of the movable slider, and an elastic retaining ring is elastically mounted on the outer surface of the injection nozzle.

[0006] As a further technical solution of the present invention, the inner side of the sliding frame is provided with a sliding groove for use with the movable slider. The movable slider and the sliding frame, as well as the sliding frame and the lifting frame, are all locked and fixed by fastening bolts. During operation, the position of the injection nozzle can be adjusted by moving the movable slider in the sliding frame, and the position of the injection nozzle can be adjusted bidirectionally by moving the sliding frame in the lifting frame. The docking position of the injection nozzle is adjusted according to the position of the lead-acid battery's liquid inlet. The fastening bolts are then used to lock and fix the sliding frame and the lifting frame, as well as the movable slider and the sliding frame, so that the injection nozzle is fixed in the designated position. When the lifting frame moves the injector down, the injection nozzle is precisely docked with the liquid inlet of the lead-acid battery.

[0007] As a further technical solution of the present invention, a material conveying hose is installed on the upper outer surface of the injection nozzle. The material conveying hose passes through the middle of the movable slider. During operation, the electrolyte, that is, the proportioned sulfuric acid, is transported to the injection nozzle through the material conveying hose by the acid tank and the pump, and then injected into the lead-acid battery through the injection nozzle.

[0008] As a further technical solution of the present invention, an electromagnetic valve is provided between the conveying hose and the injection nozzle, and a spring is provided between the injection nozzle and the elastic retaining ring. The electromagnetic valve can be used to control the opening and closing of the injection nozzle, and the spring allows the elastic retaining ring to be elastically installed on the outer surface of the injection nozzle. When the injection nozzle is connected to the lead-acid battery, the elastic retaining ring is elastically pressed tightly against the liquid injection port of the lead-acid battery, which plays an auxiliary sealing role in the liquid injection port and prevents acid from overflowing from between the injection nozzle and the liquid injection port.

[0009] As a further technical solution of the present invention, the outer surface of the fixed base is provided with a sliding groove for use with the positioning plate. The two sets of positioning plates are arranged side by side. The upper end of the fixed base is provided with a conveying roller located below the positioning plate. The conveying roller can reduce the friction when the lead-acid battery moves on the fixed base. By using the movement of the two sets of positioning plates, the two sides of the lead-acid battery can be fixed. When the lead-acid battery and the injection nozzle are connected, the lead-acid battery is positioned in an auxiliary manner.

[0010] As a further technical solution of the present invention, a limiting head is movably installed on one side of the positioning plate. The positioning plate and the limiting head are movably connected by a screw, clamping the lead-acid battery between two sets of positioning plates. The limiting head limits and fixes one end of the lead-acid battery. With the two sets of positioning plates, the lead-acid battery is limited on three sides. Depending on the size of the lead-acid battery, the positioning plate can be moved to accommodate lead-acid batteries of different lengths. At the same time, by rotating the screw, the screw drives the limiting head to move. The position of the limiting head is changed to accommodate lead-acid batteries of different widths. The user places the lead-acid battery between the two sets of positioning plates and pushes the lead-acid battery to move horizontally with the setting of the conveying roller, so that one end of the lead-acid battery abuts against the limiting head, thereby placing the liquid injection port of the lead-acid battery directly below the injection nozzle.

[0011] As a further technical solution of the present invention, a positioning block is movably installed at one end of the positioning plate, and a handle is fixedly installed on the outer surface of one end of the positioning block. The movement of the positioning plate can be controlled by the handle, and the positioning block can be pulled upward when the handle moves upward.

[0012] As a further technical solution of the present invention, the lower outer surface of the positioning block is a toothed structure, and the inner side of the fixed base is provided with a rack that works with the positioning block. When the toothed structure of the positioning block is engaged with the rack, the positioning plate is fixed. When the handle is moved upward, the handle moves the positioning block upward, causing the positioning block to separate from the rack, which makes it convenient for the user to move the positioning plate for adjustment.

[0013] As a further technical solution of the present invention, a sliding rod is sleeved between the grip and the positioning block. A spring body is provided on the outer surface of the sliding rod. The sliding rod is fixedly installed on the inner side of one end of the positioning plate. The spring body can press down on the grip and the positioning block. When the user releases the grip, an elastic downward pressure is applied to the positioning block, thereby making the positioning block and the rack tightly connected.

[0014] As a further technical solution of the present invention, a guide rod is provided between the lifting frame and the fixed base, and the upper end of the lifting frame is driven by a lifting push rod. An acid tank is fixedly installed on the upper outer surface of the fixed base, and a pump is provided at one end of the acid tank. The pump and the conveying hose are connected and fixed. During operation, the lifting push rod is used to drive the lifting frame to move down, so that the lifting frame drives the injector to move down, completing the docking operation between the injection nozzle and the liquid inlet. The pump can extract the acid in the acid tank and transport it into the conveying hose, and discharge it outward from the injection nozzle.

[0015] The beneficial effects of the present invention are as follows: By setting up an injector, the present invention enables the automatic acid adding device for lead-acid batteries to have a bidirectional liquid injection adjustment structure, which can be adjusted according to the liquid injection position of different models of lead-acid batteries. At the same time, it also has an elastic sealing structure, which simultaneously completes the auxiliary sealing of the liquid injection port during acid addition, effectively solving the problem of acid overflow. By setting two sets of positioning plates, the automatic acid filling device for lead-acid batteries optimizes the use of the filler, giving it a lead-acid battery liquid filling limit structure, avoiding misalignment between the lead-acid battery and the filling nozzle, and improving the accuracy of acid filling. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an overall structural diagram of the feeder in this invention; Figure 3 This is an overall structural diagram of the positioning card plate in this invention; Figure 4 This is an overall structural diagram of the positioning card block in this invention.

[0018] In the diagram: 1. Fixed base; 2. Positioning plate; 3. Lifting frame; 4. Injector; 5. Acid tank; 6. Pump; 7. Lifting push rod; 8. Guide rod; 9. Material conveying hose; 10. Solenoid valve; 11. Moving slider; 12. Sliding frame; 13. Fastening bolt; 14. Injection nozzle; 15. Elastic retaining ring; 16. Limiting clamp; 17. Lead screw; 18. Positioning block; 19. Handle; 20. Sliding rod; 21. Spring body. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-4As shown, an automatic acid-adding device for lead-acid batteries includes a fixed base 1 and a lifting frame 3. The lifting frame 3 is movably installed above the fixed base 1. Two sets of positioning plates 2 for positioning lead-acid batteries are movably installed at the upper end of the fixed base 1, located at the lower part of the lifting frame 3. Two sets of injectors 4 are movably installed on the inner side of the lifting frame 3. The injector 4 includes a sliding frame 12 and a movable slider 11. The movable slider 11 is slidably installed on the inner side of the sliding frame 12. The sliding frame 12 and the lifting frame 3 are slidably connected. An injection nozzle 14 is provided at the lower part of the movable slider 11, and an elastic retaining ring 15 is elastically installed on the outer surface of the injection nozzle 14.

[0021] The inner side of the sliding frame 12 is provided with a sliding groove for use with the movable slider 11. The movable slider 11 and the sliding frame 12, as well as the sliding frame 12 and the lifting frame 3, are all locked and fixed by fastening bolts 13. During operation, the position of the injection nozzle 14 can be adjusted by moving the movable slider 11 within the sliding frame 12. Then, the position of the injection nozzle 14 can be adjusted bidirectionally by moving the sliding frame 12 within the lifting frame 3. The docking position of the injection nozzle 14 is adjusted according to the position of the lead-acid battery's liquid inlet. The fastening bolts 13 are then used to lock and fix the sliding frame 12 and the lifting frame 3, as well as the movable slider 11 and the sliding frame 12, so that the injection nozzle 14 is fixed in the designated position. When the lifting frame 3 moves the injector 4 down, the injection nozzle 14 is precisely docked with the liquid inlet of the lead-acid battery.

[0022] A conveying hose 9 is installed on the upper outer surface of the injection nozzle 14. The conveying hose 9 passes through the middle of the movable slider 11. During operation, the electrolyte, that is, the proportioned sulfuric acid, is delivered to the injection nozzle 14 through the conveying hose 9 via the acid tank 5 and the pump 6, and then injected into the lead-acid battery through the injection nozzle 14.

[0023] A spring is provided between the injection nozzle 14 and the elastic retaining ring 15. The solenoid valve 10 can control the opening and closing of the injection nozzle 14. The spring allows the elastic retaining ring 15 to be elastically mounted on the outer surface of the injection nozzle 14. When the injection nozzle 14 is connected to the lead-acid battery, the elastic retaining ring 15 is elastically pressed tightly against the liquid injection port of the lead-acid battery, which plays an auxiliary sealing role in the liquid injection port and prevents acid from overflowing from between the injection nozzle 14 and the liquid injection port.

[0024] The outer surface of the fixed base 1 is provided with a sliding groove for use with the positioning plate 2. The two sets of positioning plates 2 are arranged side by side. The upper end of the fixed base 1 is provided with a conveying roller located below the positioning plate 2. The setting of the conveying roller can reduce the friction when the lead-acid battery moves on the fixed base 1. By using the movement of the two sets of positioning plates 2, the two sides of the lead-acid battery can be fixed. When the lead-acid battery and the injection nozzle 14 are connected, the lead-acid battery is positioned.

[0025] A limiting head 16 is movably installed on one side of the positioning plate 2. The positioning plate 2 and the limiting head 16 are movably connected by a screw 17. The lead-acid battery is clamped between the two sets of positioning plates 2. The limiting head 16 limits and fixes one end of the lead-acid battery. With the two sets of positioning plates 2, the lead-acid battery is limited on three sides. Depending on the size of the lead-acid battery, the positioning plate 2 can be moved to accommodate lead-acid batteries of different lengths. At the same time, by rotating the screw 17, the screw 17 drives the limiting head 16 to move. The position of the limiting head 16 is changed to accommodate lead-acid batteries of different widths. The user places the lead-acid battery between the two sets of positioning plates 2 and pushes the lead-acid battery to move horizontally with the setting of the conveying roller, so that one end of the lead-acid battery abuts against the limiting head 16, thereby placing the lead-acid battery's liquid inlet directly below the injection nozzle 14.

[0026] A positioning block 18 is movably installed at one end of the positioning plate 2. A handle 19 is fixedly installed on the outer surface of one end of the positioning block 18. The movement of the positioning plate 2 can be controlled by the handle 19. At the same time, when the handle 19 moves upward, it can pull the positioning block 18 upward.

[0027] The lower outer surface of the positioning block 18 has a toothed structure. The inner side of the fixed base 1 is provided with a rack that works with the positioning block 18. When the toothed structure of the positioning block 18 is engaged with the rack, the positioning plate 2 is fixed. When the handle 19 is moved up, the handle 19 moves the positioning block 18 up, causing the positioning block 18 to separate from the rack, making it convenient for the user to move the positioning plate 2 for adjustment.

[0028] A sliding rod 20 is sleeved between the grip 19 and the positioning block 18. A spring body 21 is provided on the outer surface of the sliding rod 20. The sliding rod 20 is fixedly installed on the inner side of one end of the positioning plate 2. The spring body 21 can press down the grip 19 and the positioning block 18. When the user releases the grip 19, an elastic downward pressure is applied to the positioning block 18, thereby making the positioning block 18 and the rack tightly engaged.

[0029] A guide rod 8 is provided between the lifting frame 3 and the fixed base 1, and the upper end of the lifting frame 3 is driven by the lifting push rod 7. An acid tank 5 is fixedly installed on the upper outer surface of the fixed base 1, and a pump 6 is provided at one end of the acid tank 5. The pump 6 and the conveying hose 9 are connected and fixed. During operation, the lifting frame 3 is driven to move down by the lifting push rod 7, so that the lifting frame 3 drives the injector 4 to move down, completing the docking operation between the injection nozzle 14 and the liquid inlet. The pump 6 can extract the acid in the acid tank 5 and deliver it to the conveying hose 9, and discharge it outward from the injection nozzle 14.

[0030] An automatic acid-adding device for lead-acid batteries allows for the adjustment of the position of the injection nozzle 14 by moving the slider 11 within the sliding frame 12. The position of the injection nozzle 14 can be adjusted bidirectionally by moving the sliding frame 12 within the lifting frame 3. The docking position of the injection nozzle 14 is adjusted according to the position of the lead-acid battery's filling port. Finally, fastening bolts 13 lock and fix the sliding frame 12 and lifting frame 3, as well as the slider 11 and sliding frame 12, ensuring the injection nozzle 14 is properly positioned. 4. When the lifting frame 3 moves the injector 4 down, the injector 14 is precisely aligned with the lead-acid battery's liquid filling port. The solenoid valve 10 can control the opening and closing of the injector 14. The spring setting allows the elastic retaining ring 15 to be elastically installed on the outer surface of the injector 14. When the injector 14 is aligned with the lead-acid battery, the elastic retaining ring 15 is elastically pressed tightly against the liquid filling port of the lead-acid battery, which plays an auxiliary sealing role in the liquid filling port and prevents acid from overflowing from between the injector 14 and the liquid filling port. The lead-acid battery is clamped between two sets of positioning plates 2. The limiting head 16 is set to limit and fix one end of the lead-acid battery. With the setting of two sets of positioning plates 2, the lead-acid battery is limited on three sides. Depending on the size of the lead-acid battery, the positioning plates 2 can be moved to accommodate lead-acid batteries of different lengths. At the same time, by rotating the lead screw 17, the lead screw 17 drives the limiting head 16 to move. The position change of the limiting head 16 can accommodate lead-acid batteries of different widths. The user places the lead-acid battery between the two sets of positioning plates 2. With the setting of the conveying roller, the lead-acid battery is pushed to move horizontally, so that one end of the lead-acid battery abuts against the limiting head 16, so that the liquid filling port of the lead-acid battery is placed directly below the filling nozzle 14. When the user releases the handle 19, the spring body 21 applies elastic downward pressure to the positioning block 18, so that the positioning block 18 and the rack are tightly connected, completing the fixing operation of the two sets of positioning plates 2.

[0031] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An automatic acid-adding device for lead-acid batteries, characterized in that, The device includes a fixed base (1) and a lifting frame (3). The lifting frame (3) is movably installed above the fixed base (1). The upper end of the fixed base (1) is located at the lower part of the lifting frame (3) and two sets of positioning plates (2) for positioning lead-acid batteries are movably installed. Two sets of injectors (4) are movably installed on the inner side of the lifting frame (3). The injector (4) includes a sliding frame (12) and a movable slider (11). The movable slider (11) is slidably installed on the inner side of the sliding frame (12). The sliding frame (12) and the lifting frame (3) are slidably connected. The lower part of the movable slider (11) is provided with an injection nozzle (14), and the outer surface of the injection nozzle (14) is elastically fitted with an elastic retaining ring (15).

2. The automatic acid-adding device for lead-acid batteries according to claim 1, characterized in that, The inner side of the sliding frame (12) is provided with a sliding groove for use with the movable slider (11). The movable slider (11) and the sliding frame (12), as well as the sliding frame (12) and the lifting frame (3), are all locked and fixed by fastening bolts (13).

3. An automatic acid-adding device for lead-acid batteries according to claim 2, characterized in that, The upper outer surface of the injection nozzle (14) is fitted with a material conveying hose (9), which passes through the middle of the movable slider (11).

4. An automatic acid-adding device for lead-acid batteries according to claim 3, characterized in that, A solenoid valve (10) is provided between the material conveying hose (9) and the injection nozzle (14), and a spring is provided between the injection nozzle (14) and the elastic retaining ring (15).

5. An automatic acid-adding device for lead-acid batteries according to claim 1, characterized in that, The outer surface of the fixed base (1) is provided with a sliding groove for use with the positioning plate (2). The two sets of positioning plates (2) are arranged side by side. The upper end of the fixed base (1) is provided with a conveying roller located at the lower part of the positioning plate (2).

6. An automatic acid-adding device for lead-acid batteries according to claim 5, characterized in that, A limiting head (16) is movably installed on one side of the positioning plate (2), and the positioning plate (2) and the limiting head (16) are movably connected by a lead screw (17).

7. An automatic acid-adding device for lead-acid batteries according to claim 6, characterized in that, A positioning block (18) is movably installed at one end of the positioning plate (2), and a handle (19) is fixedly installed on the outer surface of one end of the positioning block (18).

8. An automatic acid-adding device for lead-acid batteries according to claim 7, characterized in that, The lower outer surface of the positioning block (18) has a tooth-like structure, and the inner side of the fixing base (1) is provided with a rack that works in conjunction with the positioning block (18).

9. An automatic acid-adding device for lead-acid batteries according to claim 8, characterized in that, A sliding rod (20) is sleeved between the grip (19) and the positioning block (18). A spring body (21) is provided on the outer surface of the sliding rod (20). The sliding rod (20) is fixedly installed on the inner side of one end of the positioning plate (2).

10. An automatic acid-adding device for lead-acid batteries according to claim 1, characterized in that, A guide rod (8) is provided between the lifting frame (3) and the fixed base (1), and the upper end of the lifting frame (3) is driven by the lifting push rod (7). An acid tank (5) is fixedly installed on the upper outer surface of the fixed base (1), and a pump (6) is provided at one end of the acid tank (5).

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