Acid adding device of valve regulated lead-acid storage battery

Abstract

The invention discloses an acid adding device of a valve-regulated lead-acid storage battery, and belongs to the technical field of storage battery production equipment. A plurality of supporting columns are symmetrically connected to the lower portion of a supporting plate, a battery body is arranged on the upper portion of the supporting plate, and a photoelectric switch is installed on the supporting plate; a safety valve for sealing the battery body is elastically connected to the center of the top of the battery body; the conveying assembly is arranged between the supporting plate and the battery body, the conveying assembly is rotationally connected with the supporting plate, and the conveying assembly is detachably connected with the battery body; the acid adding pipe is arranged above the battery body, two open holes are symmetrically formed in one end, far away from the battery body, of the acid adding pipe, and an acid outlet hole is formed in one end, close to the battery body, of the acid adding pipe; the extrusion column covers the outer side of the acid outlet hole, and two acid discharge holes are symmetrically formed in the side, close to the safety valve, of the extrusion column. The safety valve is opened through extrusion of the extrusion column to add acid into the battery body, so that the whole acid injection process is controlled to be in a sealed state, and leakage of acid liquor or air is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of battery production equipment, in particular to an acid adding device for a valve-regulated lead-acid battery. Background Art

[0002] Lead-acid battery formation is a process in which completely dried green plates are placed in a dilute sulfuric acid electrolyte for electrolysis. Through oxidation and reduction, the lead monoxide on the positive plate is changed into lead dioxide and the lead monoxide on the negative plate is changed into spongy metallic lead. There are two methods for forming the plates of lead-acid batteries: the formation tank formation method (commonly known as "external formation") and the battery formation method (commonly known as "internal formation"). Regardless of the formation method, it usually takes 2 to 3 days from the start of formation to the end of formation.

[0003] During the formation process, sulfuric acid needs to be added to the lead-acid battery. The Chinese patent with publication number CN211670272U discloses a valve-controlled sealed lead-acid battery formation acid adding pot device, wherein the safety valve is pulled out from the battery acid adding port when adding acid, the lower acid port is inserted into the battery acid adding port, sulfuric acid is added to the acid storage bin, and the safety valve is plugged into the acid adding port. It can be seen that the safety valve needs to be pulled out from the battery acid adding port when adding acid, so the safety valve cannot be opened by the acid adding device, and sulfuric acid cannot be easily added to the lead-acid battery.

[0004] Therefore, it is necessary to develop an acid adding device for a valve-regulated lead-acid battery in view of the above-mentioned defects. Summary of the invention

[0005] The object of the present invention is to provide an acid adding device for a valve-regulated lead-acid battery, so as to solve the problem in the prior art that the safety valve cannot be opened by the acid adding device and sulfuric acid cannot be added to the lead-acid battery conveniently.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention discloses an acid adding device for a valve-regulated lead-acid battery, comprising:

[0008] A support plate, wherein a plurality of support columns are symmetrically connected below the support plate, a battery body is arranged above the support plate, and a safety valve for sealing the battery body is elastically connected at the top center of the battery body; a photoelectric switch for detecting the battery body is installed on the support plate;

[0009] A conveying assembly for conveying the battery body, the conveying assembly being disposed between the support plate and the battery body, the conveying assembly being rotatably connected to the support plate, and the conveying assembly being detachably connected to the battery body;

[0010] An acid adding tube for adding acid into the battery body, the acid adding tube being arranged above the battery body, the end of the acid adding tube away from the battery body being symmetrically provided with two openings, and the end of the acid adding tube close to the battery body being provided with an acid outlet hole;

[0011] The extrusion column is used for extruding the safety valve, the extrusion column cover is arranged on the outside of the acid outlet hole, the extrusion column is a cylindrical structure, one end of the extrusion column is connected to the acid addition pipe, and the other end of the extrusion column is extrusion-connected to the safety valve, and two acid discharge holes are symmetrically opened on one side of the extrusion column close to the safety valve.

[0012] Furthermore, an acid adding port is provided at the top center of the battery body, and the diameter of the extrusion column matches the diameter of the acid adding port; a third groove connected to the acid adding port is provided below the acid adding port, the bottom of the safety valve is elastically connected to the bottom of the third groove by a spring, and the side wall of the safety valve is slidingly and sealingly connected to the side wall of the third groove; two acid adding holes are symmetrically provided on both sides of the third groove, one end of the acid adding hole is connected to the third groove, and the other end of the acid adding hole is connected to the cavity of the battery body.

[0013] Furthermore, two hydraulic rods are symmetrically arranged on the top of the support plate, the fixed ends of the two hydraulic rods are connected to the support plate, and the protruding ends of the two hydraulic rods are connected to the bearing plate; the top of the acid adding pipe is connected to the bearing plate; the first through hole and the second through hole are sequentially opened on the bearing plate; the top of the bearing plate is sequentially connected to the acid storage box, the pump and the vacuum pump.

[0014] The acid storage tank is connected to the liquid inlet end of the pump, a first pipeline is provided between the pump and the acid adding pipe, one end of the first pipeline is connected to the liquid outlet end of the pump, the other end of the first pipeline passes through the first through hole and is connected to an opening of the acid adding pipe, and a first valve is connected to the first pipeline;

[0015] A second pipeline is arranged between the vacuum pump and the acid adding pipe, one end of the second pipeline is connected to the air inlet end of the vacuum pump, the other end of the second pipeline passes through the second through hole and is connected to another opening of the acid adding pipe, and a second valve is connected to the second pipeline.

[0016] Furthermore, the support plate is sequentially provided with a first groove and a second groove.

[0017] Furthermore, the transmission component includes:

[0018] A driving motor fixedly arranged on the outer side of the support plate;

[0019] A sector gear, the sector gear is arranged in the second groove, the sector gear is rotatably connected to both sides of the second groove through a first rotating shaft; the driving end of the driving motor passes through the side wall of the second groove and is drivingly connected to the first rotating shaft;

[0020] A spur gear, the spur gear is disposed in the second groove, the spur gear is rotatably connected to two sides of the second groove via a second rotating shaft; the spur gear is meshed with the sector gear;

[0021] A plurality of conveying rollers are arranged at intervals in the first groove, and a conveying belt is connected to the plurality of conveying rollers; two ends of the conveying rollers are rotatably connected to two sides of the first groove respectively, and one of the conveying rollers is connected to the second rotating shaft; a plurality of positioning grooves are arranged at intervals on the conveying belt.

[0022] Furthermore, the acid storage tank, the pump and the vacuum pump are sequentially arranged on one side of the support plate.

[0023] Furthermore, it also includes a center console fixedly connected to one side of the support plate, and the hydraulic rod, the pump, the vacuum pump, the first valve, the second valve and the drive motor are all electrically connected to the center console.

[0024] Furthermore, the diameter of the acid adding tube at one end of the acid outlet hole is smaller than the diameter of the end of the acid adding tube away from the acid outlet hole.

[0025] The present invention has the following beneficial effects:

[0026] The present invention uses an extrusion column to squeeze open a safety valve and add acid into the battery body, so as to control the entire acid injection process to be in a sealed state and avoid leakage of acid or air, thereby solving the problem in the prior art that the safety valve cannot be opened by an acid adding device and sulfuric acid cannot be conveniently added to a lead-acid battery; and by providing a transmission component, acid addition to multiple battery bodies is achieved in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the main structure of the acid adding device of the valve-regulated lead-acid battery of the present invention;

[0029] Figure 2 It is a schematic cross-sectional view of the main structure part of the acid adding device of the valve-regulated lead-acid storage battery of the present invention when no acid is added;

[0030] Figure 3 It is a schematic cross-sectional view of the main structural part of the acid adding device of the valve-regulated lead-acid storage battery of the present invention when adding acid;

[0031] Figure 4 The invention relates to an acid adding device for a valve-controlled lead-acid battery. Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 5 It is a schematic diagram of the top view of the structure of the conveying assembly in the acid adding device of the valve-regulated lead-acid battery of the present invention;

[0033] Figure 6 It is an enlarged schematic diagram of the meshing structure of the spur gear and the sector gear in the acid adding device of the valve-regulated lead-acid battery of the present invention.

[0034] Figure numerals: 1. support plate; 101. first groove; 102. second groove; 2. transmission assembly; 201. drive motor; 202. first rotating shaft; 203. sector gear; 204. spur gear; 205. second rotating shaft; 206. transmission roller; 207. conveyor belt; 2071. positioning groove; 3. hydraulic rod; 4. battery body; 401. third groove; 402. acid adding port; 403. acid adding hole; 5. bearing plate; 6. extrusion column; 601. acid discharge hole; 7. acid adding pipe; 8. safety valve; 9. spring; 10. acid storage box; 11. pump; 12. first pipeline; 13. second pipeline; 14. first valve; 15. second valve; 16. vacuum pump; 17. support column; 18. photoelectric switch. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Embodiment 1

[0038] See also Figure 1-4The present invention provides a technical solution: an acid adding device for a valve-regulated lead-acid battery, comprising: a support plate 1, a plurality of support columns 17 are symmetrically connected below the support plate 1, and a center console is fixedly connected to one side of the support plate 1. A photoelectric switch 18 for detecting a battery body 4 is installed on the support plate 1, and the photoelectric switch 18 is electrically connected to the center console.

[0039] A battery body 4 is arranged above the support plate 1, and a safety valve 8 for sealing the battery body 4 is elastically connected at the top center of the battery body 4; when the internal air pressure of the battery reaches a certain value, the safety valve 8 can be opened to discharge the gas generated by the chemical reaction inside the battery into the air. After the gas is discharged, the internal air pressure of the battery will drop sharply, and when it drops to a certain pressure value, the safety valve 8 is closed.

[0040] The conveying assembly 2 for conveying the battery body 4 is arranged between the support plate 1 and the battery body 4, the conveying assembly 2 is rotatably connected to the support plate 1, and the conveying assembly 2 is detachably connected to the battery body 4; the conveying assembly 2 is connected to the control of the central console. When the acid addition of the battery body 4 is completed, the acid addition tube 7 is separated from the battery body 4, and the central console controls the conveying assembly 2 to remove the acid-added battery body 4 from under the acid addition tube 7, and at the same time, another battery body 4 to be acid-added is transferred to under the acid addition tube 7 to start acid addition.

[0041] An acid adding tube 7 for adding acid into the battery body 4 is arranged above the battery body 4, and two openings are symmetrically arranged at one end of the acid adding tube 7 away from the battery body 4, and an acid outlet hole is provided at one end of the acid adding tube 7 close to the battery body 4; the diameter of the end of the acid adding tube 7 with the acid outlet hole is smaller than the diameter of the end of the acid adding tube 7 away from the acid outlet hole.

[0042] The extrusion column 6 is used for extruding the safety valve 8. The extrusion column 6 is covered on the outside of the acid outlet hole. The extrusion column 6 is a cylindrical structure. One end of the extrusion column 6 is connected to the acid adding pipe 7, and the other end of the extrusion column 6 is extrusion-connected to the safety valve 8. Two acid discharge holes 601 are symmetrically opened on one side of the extrusion column 6 close to the safety valve 8. The acid can flow out of the extrusion column 6 and into the battery body 4 through the acid discharge holes 601.

[0043] Compared with the prior art, the present invention squeezes the safety valve 8 to open the safety valve 8 by squeezing the squeezing column 6 to add acid into the battery body 4, so as to control the entire acid injection process to be in a sealed state, avoid leakage of acid or air, and solve the problem that the acid adding device cannot be used to open the safety valve in the prior art, and sulfuric acid cannot be added to the lead-acid battery conveniently. By setting the transmission component 2, acid is added to multiple battery bodies 4 in sequence.

[0044] Embodiment 2

[0045] See also Figure 1-6On the basis of the first embodiment, the present invention provides a technical solution: an acid adding port 402 is provided at the top center of the battery body 4, and the diameter of the extrusion column 6 matches the diameter of the acid adding port 402, so that the outer wall of the extrusion column 6 is slidably and sealedly connected to the inner wall of the acid adding port 402. A third groove 401 connected to the acid adding port 402 is provided below the acid adding port 402, the bottom of the safety valve 8 is elastically connected to the bottom of the third groove 401 through the spring 9, and the side wall of the safety valve 8 is slidably and sealedly connected to the side wall of the third groove 401; two acid adding holes 403 are symmetrically provided on both sides of the third groove 401, one end of the acid adding hole 403 is connected to the third groove 401, and the other end of the acid adding hole 403 is connected to the cavity of the battery body 4.

[0046] In this embodiment, two hydraulic rods 3 are symmetrically arranged on the top of the support plate 1, and the fixed ends of the two hydraulic rods 3 are connected to the support plate 1, and the extended ends of the two hydraulic rods 3 are connected to the bearing plate 5; the top of the acid adding pipe 7 is connected to the bearing plate 5, and the bearing plate 5 is provided with a first through hole and a second through hole in sequence; the top of the bearing plate 5 is connected with an acid storage box 10, a pump 11 and a vacuum pump 16 in sequence. In other embodiments, the acid storage box 10, the pump 11 and the vacuum pump 16 can be arranged on one side of the support plate 1 in sequence as needed. The pump 11 and the vacuum pump 16 are respectively connected to the control of the central console, and the distance between the acid adding pipe 7 and the battery body 4 can be adjusted by the extension and contraction of the hydraulic rod 3, so that the acid adding pipe 7.

[0047] Among them, the acid storage tank 10 is connected to the liquid inlet end of the pump 11, and a first pipeline 12 is arranged between the pump 11 and the acid adding pipe 7. One end of the first pipeline 12 is connected to the liquid outlet end of the pump 11, and the other end of the first pipeline 12 passes through the first through hole and is connected to an opening of the acid adding pipe 7. The first pipeline 12 is connected to a first valve 14.

[0048] A second pipeline 13 is provided between the vacuum pump 16 and the acid adding pipe 7, one end of the second pipeline 13 is connected to the air inlet end of the vacuum pump 16, the other end of the second pipeline 13 passes through the second through hole and is connected to another opening of the acid adding pipe 7, and a second valve 15 is connected to the second pipeline 13. The first valve 14 and the second valve 15 are respectively connected to the control of the central console.

[0049] Compared with the prior art, in the present invention, when acid needs to be added, the hydraulic rod 3 contracts to drive the acid adding tube 7 to move downward, the extrusion column 6 extends from the acid adding port 402 into the third groove 401, the extrusion column 6 squeezes the safety valve 8, the spring 9 contracts, the safety valve 8 moves downward, the acid adding hole 403 is connected with the third groove 401, the first valve 14 is closed, the vacuum pump 16 and the second valve 15 are turned on to evacuate the battery body 4; after the vacuuming is completed, the vacuum pump 16 and the second valve 15 are closed, the pump 11 is turned on, and the acid flows from the acid discharge hole 601 to the acid adding hole 403, and finally reaches the battery body 4.

[0050] After the acid is fully added, the vacuum pump 16 and the second valve 15 are closed, the hydraulic rod 3 is extended to drive the acid adding pipe 7 to move upward, the extrusion column 6 extends from the acid adding port 402, and the spring 9 is extended to push the safety valve 8 to move upward until it is sealed and connected with the acid inlet end of the acid adding hole 403. In this way, the entire acid injection process is controlled in a sealed state to prevent leakage of acid or air.

[0051] Embodiment 3

[0052] See also Figure 1-6 On the basis of the first and second embodiments, the present invention provides a technical solution: a first groove 101 and a second groove 102 are sequentially formed on the support plate 1 .

[0053] In this embodiment, the transmission assembly 2 includes: a driving motor 201 fixedly arranged on the outer side of the support plate 1, and the driving motor 201 is connected to the control of the central console. A sector gear 203 is arranged in the second groove 102, and the sector gear 203 is rotatably connected to both sides of the second groove 102 through the first rotating shaft 202; the driving end of the driving motor 201 passes through the side wall of the second groove 102 and is drivingly connected to the first rotating shaft 202.

[0054] The spur gear 204 is disposed in the second groove 102 . The spur gear 204 is rotatably connected to two sides of the second groove 102 via the second rotating shaft 205 . The spur gear 204 is meshed with the sector gear 203 .

[0055] Multiple conveying rollers 206 are arranged at intervals in the first groove 101, and a conveying belt 207 is connected to the multiple conveying rollers 206; the two ends of the conveying rollers 206 are rotatably connected to the two sides of the first groove 101 respectively, and one of the conveying rollers 206 is connected to the second rotating shaft 205; a plurality of positioning grooves 2071 are arranged at intervals on the conveying belt 207.

[0056] Compared with the prior art, the driving motor 201 in the present invention drives the sector gear 203 to rotate. When the sector gear 203 is meshed with the spur gear 204, the second rotating shaft 205 drives the conveying roller 206 to rotate, so that the conveyor belt 207 conveys the battery body 4 forward; when the sector gear 203 is separated from the spur gear 204, the second rotating shaft 205 stops rotating. At this time, the acid adding tube 7 extends into the acid adding port 402 to fill the battery body 4 with acid and extends out of the acid adding port 402, thereby realizing the acid adding of multiple battery bodies 4 in sequence.

[0057] Embodiment 4

[0058] This embodiment provides a method for using an acid adding device for a valve-regulated lead-acid battery, which is a method for using an acid adding device for a valve-regulated lead-acid battery provided in Embodiment 1, Embodiment 2 or Embodiment 3, and is specifically as follows:

[0059] The driving motor 201 is started to drive the sector gear 203 to start rotating. When the sector gear 203 is meshed with the spur gear 204, the second rotating shaft 205 drives the conveying roller 206 to rotate, and the battery body 4 is placed in the plurality of positioning grooves 2071 in sequence, so that the conveyor belt 207 conveys the battery body 4 forward. When the battery body 4 is conveyed to the right below the acid adding tube 7, the sector gear 203 is separated from the spur gear 204, and the second rotating shaft 205 stops rotating. The battery body 4 reaches the predetermined position and is in a stationary state. At the same time, the photoelectric switch 18 detects the battery body 4 and feeds back the detection result to the central console. The central console starts the hydraulic rod 3 to contract and drive the acid adding tube 7 to move downward. The squeezing column 6 extends from the acid adding port 402 into the third groove 401. The squeezing column 6 squeezes the safety valve 8, the spring 9 contracts, the safety valve 8 moves downward, the acid adding hole 403 is connected with the third groove 401, the first valve 14 is closed, and the vacuum pump 16 and the second valve 15 are opened to evacuate the battery body 4. After the vacuuming is completed, the vacuum pump 16 and the second valve 15 are closed, and the pump 11 is opened, and the acid flows from the acid discharge hole 601 to the acid addition hole 403, and finally reaches the battery body 4. After the acid is fully added, the pump 11 and the second valve 15 are closed, the hydraulic rod 3 is extended to drive the acid addition pipe 7 to move upward, the extrusion column 6 extends from the acid addition port 402, and the spring 9 extends to push the safety valve 8 to move upward until it is sealed and connected with the acid inlet end of the acid addition hole 403. At this time, the gear teeth of the sector gear 203 are meshed with the spur gear 204 again, so that the battery body 4 is transmitted to the next process.

[0060] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0061] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A valve-regulated lead-acid battery acid adding device, characterized in that: include: A support plate (1), wherein a plurality of support columns (17) are symmetrically connected below the support plate (1), a battery body (4) is arranged above the support plate (1), and a safety valve (8) for sealing the battery body (4) is elastically connected at the top center of the battery body (4); a photoelectric switch (18) for detecting the battery body (4) is installed on the support plate (1); A conveying assembly (2) for conveying the battery body (4), the conveying assembly (2) being arranged between the support plate (1) and the battery body (4), the conveying assembly (2) being rotatably connected to the support plate (1), and the conveying assembly (2) being detachably connected to the battery body (4); an acid adding tube (7) for adding acid into the battery body (4), the acid adding tube (7) being arranged above the battery body (4), the end of the acid adding tube (7) away from the battery body (4) being symmetrically provided with two openings, and the end of the acid adding tube (7) close to the battery body (4) being provided with an acid outlet hole; A squeezing column (6) for squeezing the safety valve (8), the squeezing column (6) being arranged on the outside of the acid outlet hole, the squeezing column (6) being a cylindrical structure, one end of the squeezing column (6) being connected to the acid adding pipe (7), the other end of the squeezing column (6) being squeezingly connected to the safety valve (8), and two acid outlet holes (601) being symmetrically provided on one side of the squeezing column (6) close to the safety valve (8).

2. The acid adding device for valve-regulated lead-acid battery according to claim 1, characterized in that: An acid adding port (402) is provided at the center of the top of the battery body (4), and the diameter of the extrusion column (6) matches the diameter of the acid adding port (402); a third groove (401) connected to the acid adding port (402) is provided below the acid adding port (402); the bottom of the safety valve (8) is elastically connected to the bottom of the third groove (401) via a spring (9), and the side wall of the safety valve (8) is slidably sealed to the side wall of the third groove (401); two acid adding holes (403) are symmetrically provided on both sides of the third groove (401), one end of the acid adding hole (403) is connected to the third groove (401), and the other end of the acid adding hole (403) is connected to the cavity of the battery body (4).

3. The acid adding device for valve-regulated lead-acid battery according to claim 2, characterized in that: Two hydraulic rods (3) are symmetrically arranged on the top of the support plate (1), the fixed ends of the two hydraulic rods (3) are connected to the support plate (1), and the extended ends of the two hydraulic rods (3) are connected to a bearing plate (5); the top of the acid adding pipe (7) is connected to the bearing plate (5); a first through hole and a second through hole are sequentially opened on the bearing plate (5); the top of the bearing plate (5) is sequentially connected to an acid storage box (10), a pump (11) and a vacuum pump (16); The acid storage tank (10) is connected to the liquid inlet end of the pump (11); a first pipeline (12) is provided between the pump (11) and the acid adding pipe (7); one end of the first pipeline (12) is connected to the liquid outlet end of the pump (11); the other end of the first pipeline (12) passes through the first through hole and is connected to an opening of the acid adding pipe (7); and the first pipeline (12) is connected to a first valve (14); A second pipeline (13) is provided between the vacuum pump (16) and the acid adding pipe (7); one end of the second pipeline (13) is connected to the air inlet end of the vacuum pump (16); the other end of the second pipeline (13) passes through the second through hole and is connected to another opening of the acid adding pipe (7); and a second valve (15) is connected to the second pipeline (13).

4. The acid adding device for valve-regulated lead-acid battery according to claim 3, characterized in that: The support plate (1) is provided with a first groove (101) and a second groove (102) in sequence.

5. The acid adding device for valve-regulated lead-acid battery according to claim 4, characterized in that: The transmission component (2) comprises: A driving motor (201) fixedly arranged on the outside of the support plate (1); a sector gear (203), the sector gear (203) being arranged in the second groove (102), the sector gear (203) being rotationally connected to both sides of the second groove (102) via the first rotating shaft (202); the driving end of the driving motor (201) passing through the side wall of the second groove (102) and being drivingly connected to the first rotating shaft (202); a spur gear (204), the spur gear (204) being disposed in the second groove (102), the spur gear (204) being rotatably connected to two sides of the second groove (102) via a second rotating shaft (205); the spur gear (204) being meshed with the sector gear (203); A plurality of conveying rollers (206) are arranged at intervals in the first groove (101), and a conveying belt (207) is connected to the plurality of conveying rollers (206); two ends of the conveying rollers (206) are rotatably connected to two sides of the first groove (101), and one of the conveying rollers (206) is connected to the second rotating shaft (205); and a plurality of positioning grooves (2071) are arranged at intervals on the conveying belt (207).

6. The acid adding device for valve-regulated lead-acid battery according to claim 5, characterized in that: The acid storage tank (10), the pump (11) and the vacuum pump (16) are arranged in sequence on one side of the support plate (1).

7. The acid adding device for valve-regulated lead-acid battery according to claim 6, characterized in that: It also includes a central control panel fixedly connected to one side of the support plate (1), and the hydraulic rod (3), the pump (11), the vacuum pump (16), the first valve (14), the second valve (15) and the drive motor (201) are all electrically connected to the central control panel.

8. The acid adding device for valve-regulated lead-acid battery according to claim 1, characterized in that: The diameter of the acid adding pipe (7) at one end of the acid outlet hole is smaller than the diameter of the end of the acid adding pipe (7) away from the acid outlet hole.

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