Vacuum-pumping and acid-adding joint for power lead-acid storage battery

Abstract

The utility model relates to a vacuum-pumping and acid-adding joint for a power lead-acid storage battery in the technical field of vacuum-pumping and acid-adding of lead-acid storage batteries, which comprises an upper connecting pipe and a lower connecting pipe, the outer surface of the lower connecting pipe is provided with external threads, and the upper end of the lower connecting pipe extends into the upper connecting pipe and is in threaded fit with the inner walls of the three connecting pipes; a first sealing ring is arranged on the outer wall of the lower connecting pipe outside the upper connecting pipe, and a second sealing ring is arranged at the top end of the outer wall of the lower connecting pipe inside the upper connecting pipe. The lower connecting pipe is rotated, so that the lower connecting pipe can stretch out and draw back in the upper connecting pipe, and the length of the lower connecting pipe extending out of the upper connecting pipe is adjusted. The acid storage tank is good in sealing effect and avoids acid leakage; and the lower connecting pipe is telescopic in the upper connecting pipe, so that the length of the joint can be flexibly changed as required to adapt to acid adding ports of different storage batteries, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lead -acid battery vacuum pumping adds acid, specifically related to a power lead -acid battery vacuum pumping adds acid joint. BACKGROUND

[0002] The production of lead -acid battery, add acid is one of the key procedures, this production procedure requires that add acid is accurate, stable. At present, the manufacturer generally adopts the vacuum pumping adds acid mode, compared with the method through the funnel excess injection acid after natural down or adopts the syringe injection, the vacuum pumping adds acid has very high efficiency, generally the vacuum pumping adds acid joint through the thread and the acid adding mouth of battery connection, realizes the acid adding operation. Patent number CN202004083U discloses a kind of for battery's vacuum adds acid nozzle, including acid adding head, columnar tube and negative pressure joint, the columnar tube one end with the acid adding head through, the other end with the negative pressure joint through, the acid adding head with the columnar tube opposite end is set out acid mouth, and the acid adding head includes gradually tapering conical acid adding portion along the columnar tube to the direction of acid mouth. The vacuum adds acid nozzle in the patent can make acid mouth completely enter battery injection mouth, ensure that acid adding is complete and no residual acid liquid overflow, but the length of its acid adding head is not adjustable, and the scope of application is small. Therefore, a kind of power lead -acid battery vacuum pumping adds acid joint is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0003] In view of the above defects of the prior art, the utility model provides a power lead -acid battery vacuum pumping adds acid joint, which comprises an upper connecting pipe and a lower connecting pipe, the outer surface of the lower connecting pipe is provided with external threads, and the upper end of the lower connecting pipe extends into the upper connecting pipe and is threadedly connected with the inner wall of the upper connecting pipe.

[0004] A sealing ring one is arranged on the outer wall of the lower connecting pipe outside the upper connecting pipe, and a sealing ring two is arranged on the top end of the outer wall of the lower connecting pipe inside the upper connecting pipe. By rotating the lower connecting pipe, the lower connecting pipe can be extended or retracted in the upper connecting pipe, the length of the lower connecting pipe extending out of the upper connecting pipe can be adjusted, the acid adding operation is facilitated, the sealing ring one improves the sealing performance of the connection between the lower connecting pipe and the upper connecting pipe, and acid leakage is avoided, and the sealing ring two improves the sealing performance of the acid adding mouth of the battery, and acid leakage is avoided.

[0005] Preferably, the lower end of the lower connecting pipe is tapered, i.e., wider at the top and narrower at the bottom. This arrangement allows the lower end of the lower connecting pipe to better extend into the acid adding mouth of the battery. Different sizes of acid adding mouths can be used.

[0006] Preferably, the upper connecting pipe is internally provided with a feeding channel and a feeding cavity, the lower end of the feeding channel is communicated with the upper end of the feeding cavity, the diameter of the feeding channel is smaller than that of the feeding cavity; the upper end of the lower connecting pipe is always located in the feeding cavity, the bottom of the feeding cavity is provided with a blocking ring matched with the sealing ring two, the blocking ring is threadedly matched with the lower connecting pipe, the lower connecting pipe is internally provided with a discharging channel, and the top end of the discharging channel is communicated with a tapered material receiving groove. Through the arrangement, the lower connecting pipe can be moved in the upper connecting pipe, and the acid solution in the package can enter the feeding cavity through the feeding channel, and then enter the acid adding opening of the storage battery through the discharging channel.

[0007] Preferably, the middle part of the blocking ring is rotationally connected with a rotating ring through a bearing, the inner ring surface of the rotating ring is provided with an internal thread matched with the outer wall of the outer connecting pipe, a gear rack is fixed on the outer ring surface of the rotating ring, the gear rack is meshed with a gear, the gear is connected with a forward and reverse motor, the forward and reverse motor is connected with an external power supply through wires, a guide block is fixed on the lower connecting pipe corresponding to the upper part of the sealing ring two, a vertical guide groove is arranged on the inner wall of the upper connecting pipe corresponding to the guide block, and one end of the guide block is slidably arranged in the guide groove. Through the arrangement, the forward and reverse motor drives the gear to rotate forward and reversely, the gear drives the rotating ring to rotate forward and reversely, the rotating ring is threadedly connected with the outer connecting pipe, and under the limiting action of the guide block, the lower connecting pipe can move up and down in the upper connecting pipe.

[0008] Preferably, the sealing ring one and the sealing ring two are silica gel rings or rubber rings.

[0009] The utility model also includes other components capable of enabling the power lead-acid storage battery vacuumizing and acid adding connector to be normally used, such as the control components of the forward and reverse motor, which are conventional technical means in the field. In addition, the devices or components not added in the utility model, such as the sealing ring one and the sealing ring two, adopt conventional technical means and conventional equipment in the field.

[0010] The utility model has the advantages of good sealing effect, acid leakage prevention, telescopic lower connecting pipe in the upper connecting pipe, flexible length change of the connector according to needs, acid adding opening adaptation of different storage batteries, and wide application range. DRAWINGS

[0011] The utility model is further illustrated below in combination with the drawings and embodiments.

[0012] Figure 1 It is a structure schematic view of the power lead-acid storage battery vacuumizing and acid adding connector in the utility model embodiment.

[0013] Figure 2 It is Figure 1 a sectional view.

[0014] Figure 3 It isFigure 2 Diagram showing the state of the lower connecting pipe after it has been moved down.

[0015] In the diagram: 1. Upper connecting pipe; 2. Lower connecting pipe; 3. Sealing ring one; 4. Wire; 5. Forward and reverse motor; 6. Gear; 7. Rack; 8. Rotating ring; 9. Sealing ring two; 10. Conical receiving groove; 11. Feeding chamber; 12. Feeding channel; 13. Discharge channel; 14. Guide block; 15. Guide groove. Detailed Implementation

[0016] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0017] Example

[0018] like Figures 1-3 As shown, this utility model provides a vacuuming and acid-adding connector for a power lead-acid battery, including an upper connecting pipe 1 and a lower connecting pipe 2. The outer surface of the lower connecting pipe 2 is provided with an external thread, and the upper end of the lower connecting pipe 2 extends into the upper connecting pipe 1 and is threaded into the inner wall of the upper connecting pipe.

[0019] A sealing ring 3 is provided on the outer wall of the lower connecting pipe 2 located outside the upper connecting pipe 1, and a sealing ring 9 is provided at the top of the outer wall of the lower connecting pipe 2 located inside the upper connecting pipe 1. Rotating the lower connecting pipe 2 allows it to extend and retract within the upper connecting pipe 1, adjusting the length of the lower connecting pipe 2 extending outside the upper connecting pipe 1 to facilitate acid addition. The sealing ring 3 improves the sealing performance of the connection between the lower connecting pipe 2 and the upper connecting pipe 1, preventing acid leakage. The sealing ring 9 improves the sealing performance between the lower connecting pipe 2 and the battery acid addition port, preventing acid leakage.

[0020] The lower end of the lower connecting pipe 2 is tapered, wider at the top and narrower at the bottom. This design allows the lower end of the lower connecting pipe 2 to better extend into the acid filling port of the battery.

[0021] The upper connecting pipe 1 is internally provided with a feeding channel 12 and a feeding cavity 11, the lower end of the feeding channel 12 is communicated with the upper end of the feeding cavity 11, the diameter of the feeding channel 12 is smaller than that of the feeding cavity 11; the upper end of the lower connecting pipe 2 is always located in the feeding cavity 11, the bottom of the feeding cavity 11 is provided with a blocking ring matched with the sealing ring two 9, the blocking ring is threadedly matched with the lower connecting pipe 2, the lower connecting pipe 2 is internally provided with a discharging channel 13, the top end of the discharging channel 13 is communicated with a tapered material receiving groove 10. The arrangement facilitates the movement of the lower connecting pipe 2 in the upper connecting pipe 1, and the go-out-of-bag acid solution enters the feeding cavity 11 through the feeding channel 12, and then enters the acid adding opening of the storage battery through the discharging channel 13.

[0022] The middle part of the blocking ring is rotationally connected with a rotating ring 8 through a bearing, the inner ring surface of the rotating ring 8 is provided with an internal thread matched with the outer wall of the outer connecting pipe, a gear rack 7 is fixed on the outer ring surface of the rotating ring 8, the gear rack 7 is engaged with a gear 6, the gear 6 is connected with a forward-reverse motor 5, the forward-reverse motor 5 is connected with an external power supply through a wire 4, the upper end of the lower connecting pipe 2 is fixed with a guide block 14 corresponding to the sealing ring two 9, the inner wall of the upper connecting pipe 1 corresponding to the guide block 14 is provided with a vertical guide groove 15, one end of the guide block 14 is slidingly arranged in the guide groove 15. The arrangement drives the gear 6 to rotate forward and reversely through the forward-reverse motor 5, drives the rotating ring 8 to rotate forward and reversely through the gear 6, and the rotating ring 8 is threadedly connected with the outer connecting pipe, under the limiting action of the guide block 14, the lower connecting pipe 2 can move up and down in the upper connecting pipe 1.

[0023] The sealing ring one 3 and the sealing ring two 9 are silica gel rings or rubber rings.

[0024] Working principle: in use, the upper connecting pipe is connected with a vacuum pumping device and an acid storage device (this is prior art and is not in the protection scope of the utility model, and its connection and structure are not described herein), the lower end of the lower connecting pipe extends into the acid adding opening of the storage battery, and in the above process, the length of the lower connecting pipe in the upper connecting pipe is adjusted to ensure that the lower connecting pipe extends into the acid adding opening (specifically, the gear is driven to rotate forward and reversely through the forward-reverse motor, the rotating ring is driven to rotate forward and reversely through the gear, the rotating ring is threadedly connected with the outer connecting pipe, and under the limiting action of the guide block, the lower connecting pipe can move up and down in the upper connecting pipe), at this time, the sealing ring one is in close contact with the periphery of the acid adding opening, the sealing effect is enhanced, acid leakage is avoided, and the sealing ring two is in close contact with the inner wall of the feeding cavity, so that the acid solution in the feeding cavity is prevented from leaking out of the upper connecting pipe. The overall sealing effect is good, acid leakage is avoided, the lower connecting pipe can be telescopic in the upper connecting pipe, the length of the connector can be flexibly changed as needed to adapt to the acid adding openings of different storage batteries, and the utility scope is wide.

[0025] The above has described the embodiment of the utility model, the above-mentioned explanation is exemplary, is not exhaustive, and also is not limited to the disclosed embodiment. Many modifications and changes are obvious to those skilled in the art without deviating from the scope and spirit of the described embodiment. Any modification, equivalent replacement and improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vacuum filling and acid adding connector for a power lead-acid battery, comprising an upper connecting pipe and a lower connecting pipe, characterized in that: The outer surface of the lower connecting pipe is provided with external threads, and the upper end of the lower connecting pipe extends into the upper connecting pipe and is threaded into the inner wall of the three connecting pipes. A sealing ring one is provided on the outer wall of the lower connecting pipe located outside the upper connecting pipe, and a sealing ring two is provided at the top of the outer wall of the lower connecting pipe located inside the upper connecting pipe.

2. The vacuuming and acid-adding connector for a power lead-acid battery according to claim 1, characterized in that: The lower end of the lower connecting pipe is tapered, wider at the top and narrower at the bottom.

3. The vacuuming and acid-adding connector for a power lead-acid battery according to claim 1, characterized in that: The upper connecting pipe is provided with a feeding channel and a feeding chamber. The lower end of the feeding channel is connected to the upper end of the feeding chamber. The diameter of the feeding channel is smaller than the diameter of the feeding chamber. The upper end of the lower connecting pipe is always located in the feeding chamber. The bottom of the feeding chamber is provided with a retaining ring that cooperates with the sealing ring. The retaining ring is threaded with the lower connecting pipe. The lower connecting pipe is provided with a discharge channel. The top end of the discharge channel is connected to a conical receiving groove.

4. A vacuuming and acid-adding connector for a power lead-acid battery according to claim 3, characterized in that: The middle part of the retaining ring is rotatably connected to a rotating ring via a bearing. The inner ring surface of the rotating ring is provided with an internal thread that mates with the outer wall of the outer connecting pipe. A rack is fixed on the outer ring surface of the rotating ring. The rack meshes with a gear. The gear is connected to a forward and reverse motor. The forward and reverse motor is connected to an external power source via a wire. A guide block is fixed on the lower connecting pipe corresponding to the upper part of the sealing ring. A vertical guide groove is provided on the inner wall of the upper connecting pipe corresponding to the guide block. One end of the guide block is slidably disposed in the guide groove.

5. A vacuuming and acid-adding connector for a power lead-acid battery according to claim 1, characterized in that: Both sealing ring one and sealing ring two are silicone rings or rubber rings.

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