An acid filling device for a lead-acid battery

Abstract

This utility model relates to the field of battery processing acid injection technology, and discloses an acid injection device for lead-acid batteries, including an acid injection tube and a battery body. By controlling the safety valve to open the acid injection inlet of the battery body, the sealing tube is further controlled to be embedded therein. At the same time, electrolyte is continuously injected into the guide tube through the acid injection tube. When the push handle is pressed to move the guide tube downward along the inner wall of the sealing tube and embed it into the battery body, the guide hole will be exposed outside the sealing tube, thereby releasing the electrolyte to realize the acid injection of the lead-acid battery. After the battery acid injection is completed, the push handle is released to allow the guide hole to be submerged in the sealing tube, which can quickly complete the electrolyte cut-off. While aligning the safety valve and the sealing tube, the support frame will be preferentially supported on the battery body under the action of the second spring. Benefiting from the annular shape of the support frame and the limiting effect of the slide rod and the limiting seat, the sealing tube will always maintain a perpendicular relationship with the upper surface of the battery body, thereby ensuring that the sealing tube is always tightly connected to the safety valve.

Description

Technical Field

[0001] This utility model relates to the field of battery processing acid injection technology, specifically to an acid injection device for lead-acid batteries. Background Technology

[0002] Lead-acid batteries support electrolyte addition; however, the electrolyte in the battery contains dilute sulfuric acid, which is corrosive. During the addition process, because the safety valve cannot form a good connection with the acid injection connector and cannot stop the acid injection in time after the acid injection is completed, it is easy to make mistakes and contact with the skin and eyes, resulting in burns to the skin and eyes. Therefore, there is a need to provide an acid injection device for lead-acid batteries. Utility Model Content

[0003] The purpose of this invention is to provide an acid injection device for lead-acid batteries, in order to solve the problem that existing devices cannot ensure the electrolyte cut-off and stable connection between the acid injection connector and the safety valve when adding electrolyte to lead-acid batteries, which leads to electrolyte leakage and burns to the skin and eyes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an acid injection device for a lead-acid battery, comprising an acid injection pipe and a battery body, a safety valve fixedly installed on the upper side of the battery body, and a flow guiding mechanism provided on the acid injection pipe; the flow guiding mechanism comprises a flow guiding pipe and a sealing pipe, the flow guiding pipe being fixedly connected to the acid injection pipe, and a push handle being fixedly installed at one end of the flow guiding pipe, and two flow guiding holes being opened in the middle of the flow guiding pipe, and a sealing plug being fixedly installed at the other end of the flow guiding pipe, with support seats fixedly installed on both sides of the sealing pipe, and a first spring being fixedly installed between the two support seats and the push handle.

[0005] Preferably, the sealing tube is sized to match the safety valve, and the guide tube is slidably installed inside the sealing tube.

[0006] Preferably, one end of the sealing tube has a tapered groove, and the sealing plug is adapted to the tapered groove.

[0007] Preferably, the length of the two guide holes is 1 / 2 of the height of the inner wall of the sealing tube, and the guide holes are located on the upper side of the sealing plug.

[0008] Preferably, the sealing tube is provided with a support mechanism, which includes two limiting seats. The two limiting seats are respectively fixedly installed on both sides of the sealing tube, and a sliding rod is slidably installed through both limiting seats. A baffle is fixedly installed at one end of the sliding rod, and a support is fixedly installed between the other ends of the two sliding rods. Two second springs are fixedly installed side by side between the support and the baffle.

[0009] Preferably, the limiting seats are symmetrically fixedly installed on both sides of the sealing tube, and the distance between the two sliding rods and the sealing plug is the same.

[0010] Preferably, the second spring is sleeved on the slide rod, and the support frame is composed of a ring frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1) The lead-acid battery's acid injection device opens the acid injection inlet of the battery body by controlling the safety valve, further controlling the sealing tube to be embedded in it. At the same time, electrolyte is continuously injected into the guide tube through the acid injection tube. When the push handle is pressed to move the guide tube downward along the inner wall of the sealing tube and embed it into the battery body, the guide hole will be exposed outside the sealing tube, thereby releasing the electrolyte to realize the acid injection of the lead-acid battery. After the battery acid injection is completed, the push handle is released to allow the guide hole to be submerged in the sealing tube, which can quickly complete the electrolyte cut-off.

[0013] 2) In the lead-acid battery, while aligning the safety valve and the sealing tube, the support frame will be preferentially supported on the battery body under the action of the second spring. Benefiting from the annular shape of the support frame and the limiting effect of the slide rod and the limiting seat, the sealing tube will always maintain a perpendicular relationship with the upper surface of the battery body, thereby ensuring that the sealing tube is always tightly connected to the safety valve. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an acid injection device for a lead-acid battery according to an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional view of the sealing tube in an embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional view of the guide tube in an embodiment of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the support mechanism in an embodiment of this utility model.

[0018] In the diagram: 1. Acid injection tube; 2. Battery body; 3. Safety valve; 4. Flow guiding mechanism; 401. Flow guiding tube; 402. Sealing tube; 403. Push handle; 404. Flow guiding hole; 405. Sealing plug; 406. Support seat; 407. First spring; 5. Support mechanism; 501. Limit seat; 502. Slide rod; 503. Baffle; 504. Support frame; 505. Second spring. Detailed Implementation

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

[0020] Example 1

[0021] Combination Figures 1-3 An acid injection device for a lead-acid battery includes an acid injection pipe 1 and a battery body 2. A safety valve 3 is fixedly installed on the upper side of the battery body 2. A flow guiding mechanism 4 is provided on the acid injection pipe 1. The flow guiding mechanism 4 includes a flow guiding pipe 401 and a sealing pipe 402. The flow guiding pipe 401 is fixedly connected to the acid injection pipe 1. A push handle 403 is fixedly installed at one end of the flow guiding pipe 401. Two flow guiding holes 404 are opened in the middle of the flow guiding pipe 401. A sealing plug 405 is fixedly installed at the other end of the flow guiding pipe 401. Support seats 406 are fixedly installed on both sides of the sealing pipe 402. A first spring 407 is fixedly installed between the two support seats 406 and the push handle 403.

[0022] The sealing tube 402 is size-matched with the safety valve 3. The guide tube 401 is slidably installed inside the sealing tube 402. One end of the sealing tube 402 has a conical groove, and the sealing plug 405 is matched with the conical groove. The length of the two guide holes 404 is 1 / 2 of the height of the inner wall of the sealing tube 402, and the guide holes 404 are located on the upper side of the sealing plug 405. In use, the acid inlet of the battery body 2 is opened by controlling the safety valve 3, and the sealing tube 402 is further controlled to be embedded in it. At the same time, electrolyte is continuously injected into the guide tube 401 through the acid injection tube 1. When the push handle 403 is pressed to move the guide tube 401 down along the inner wall of the sealing tube 402 and embed it into the battery body 2, the guide holes 404 will be exposed outside the sealing tube 402, thereby releasing the electrolyte to realize the acid injection of the lead-acid battery. After the battery acid injection is completed, the push handle 403 is released to allow the guide holes 404 to be submerged in the sealing tube 402, which can quickly complete the electrolyte cut-off.

[0023] Example 2

[0024] See Figure 4 A support mechanism 5 is provided on the sealing tube 402. The support mechanism 5 includes two limiting seats 501. The two limiting seats 501 are fixedly installed on both sides of the sealing tube 402, and a slide rod 502 is slidably installed through the two limiting seats 501. A baffle 503 is fixedly installed at one end of the slide rod 502, and a support 504 is fixedly installed between the other ends of the two slide rods 502. Two second springs 505 are fixedly installed side by side between the support 504 and the baffle 503.

[0025] The limiting seat 501 is symmetrically fixed on both sides of the sealing tube 402. The distance between the two sliding rods 502 and the sealing plug 405 is the same. The second spring 505 is sleeved on the sliding rod 502. The support frame 504 is composed of a ring frame. While aligning the safety valve 3 with the sealing tube 402, the support frame 504 will be supported on the battery body 2 under the action of the second spring 505. Benefiting from the ring shape of the support frame 504 and the limiting effect of the sliding rod 502 and the limiting seat 501, the sealing tube 402 will always maintain a perpendicular relationship with the upper surface of the battery body 2, thereby ensuring that the sealing tube 402 is always tightly connected to the safety valve 3.

[0026] In actual operation, the acid injection inlet of the battery body 2 is opened by controlling the safety valve 3, and the sealing tube 402 is further embedded in it. At the same time, electrolyte is continuously injected into the guide tube 401 through the acid injection tube 1. When the push handle 403 is pressed to move the guide tube 401 down along the inner wall of the sealing tube 402 and embed it into the battery body 2, the guide hole 404 will be exposed outside the sealing tube 402, thereby releasing the electrolyte to realize the acid injection of the lead-acid battery. When the battery acid injection is completed, the push handle 403 is released to allow the guide hole 404 to be submerged in the sealing tube 402, which can quickly complete the electrolyte cut-off.

[0027] While aligning the safety valve 3 with the sealing tube 402, the support 504 will be supported on the battery body 2 under the action of the second spring 505. Benefiting from the annular shape of the support 504 and the limiting effect of the slide rod 502 and the limiting seat 501, the sealing tube 402 will always maintain a perpendicular relationship with the upper surface of the battery body 2, thereby ensuring that the sealing tube 402 is always tightly connected to the safety valve 3.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lead-acid battery acid injection device comprising an acid injection pipe (1) and a battery body (2), a safety valve (3) is fixedly installed on the upper side of the battery body (2), characterized in that: The acid injection tube (1) is provided with a flow guiding mechanism (4); The flow guiding mechanism (4) includes a flow guiding pipe (401) and a sealing pipe (402). The flow guiding pipe (401) is fixedly connected to the acid injection pipe (1). A push handle (403) is fixedly installed at one end of the flow guiding pipe (401). Two flow guiding holes (404) are opened in the middle of the flow guiding pipe (401). A sealing plug (405) is fixedly installed at the other end of the flow guiding pipe (401). Support seats (406) are fixedly installed on both sides of the sealing pipe (402). A first spring (407) is fixedly installed between the two support seats (406) and the push handle (403).

2. An acid injection device for a lead-acid battery as defined in claim 1, characterized in that: The sealing tube (402) is sized to match the safety valve (3), and the guide tube (401) is slidably installed inside the sealing tube (402).

3. An acid injection device for a lead-acid battery as defined in claim 2, characterized in that: One end of the sealing tube (402) is provided with a conical groove, and the sealing plug (405) is adapted to the conical groove.

4. An acid injection device for a lead-acid battery as defined in claim 3, characterized in that: The length of the two guide holes (404) is 1 / 2 of the height of the inner wall of the sealing tube (402), and the guide holes (404) are located on the upper side of the sealing plug (405).

5. An acid injection device for a lead-acid battery according to claim 4, characterised in that: A support mechanism (5) is provided on the sealing tube (402). The support mechanism (5) includes two limiting seats (501). The two limiting seats (501) are respectively fixedly installed on both sides of the sealing tube (402). A slide rod (502) is slidably installed through the two limiting seats (501). A baffle (503) is fixedly installed at one end of the slide rod (502). A support frame (504) is fixedly installed between the other ends of the two slide rods (502). Two second springs (505) are fixedly installed side by side between the support frame (504) and the baffle (503).

6. The lead-acid battery acid injection device according to claim 5, characterized in that: The limiting seat (501) is symmetrically fixed on both sides of the sealing tube (402), and the distance between the two slide rods (502) and the sealing plug (405) is the same.

7. An acid injection device for a lead-acid battery according to claim 6, characterised in that: The second spring (505) is sleeved on the slide rod (502), and the support frame (504) is composed of a ring frame.

Images