Lead-acid storage battery liquid injection device

Abstract

The utility model relates to the technical field of battery liquid injection, in particular to a liquid injection device for a lead-acid storage battery. Comprising a to-be-injected battery, a flat plate and an injection pipe, the battery to be injected is fixed on the flat plate; the liquid injection pipe is arranged above the flat plate and is used for injecting liquid into a to-be-injected battery fixed on the flat plate, a liquid injection adjusting assembly is arranged at a liquid outlet of the liquid injection pipe, the liquid injection adjusting assembly is in butt joint with a liquid injection opening of the to-be-injected battery, and a cavity used for extracting electrolyte overflowing out of the liquid injection opening of the to-be-injected battery is formed in the liquid injection adjusting assembly. The device is simple in structure, electrolyte overflowing out of the electrolyte injection opening can be sucked in time, and the safety of manual battery electrolyte injection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery liquid injection, in particular to a lead-acid battery liquid injection device. Background Art

[0002] Lead-acid batteries refer to batteries that use acidic aqueous solutions as electrolytes. The main advantages of acid batteries are high operating voltage, wide operating temperature, good high and low rate discharge performance, abundant raw material sources, and low prices. The electrolyte of lead-acid batteries is sulfuric acid aqueous solution, which needs to be injected through the injection port during production and maintenance. When the injection port is injected, the internal gas of the lead-acid battery is squeezed out by the solution. In order to ensure the sealing effect of the lead-acid battery in the later use, the injection port is usually designed to be very small, which leads to the injection speed not being too fast during the injection process. Too fast will cause the airflow inside the battery to overflow quickly and impact the electrolyte aqueous solution being injected into the injection port, causing the electrolyte aqueous solution to overflow. Since sulfuric acid aqueous solution is corrosive, overflow will cause varying degrees of damage to operators and the environment. Therefore, it is urgent to solve it.

[0003] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lead-acid battery filling device, which has a simple structure and can absorb electrolyte overflowing from the filling port in time, thereby improving the safety of manual battery filling.

[0005] To achieve the above object, the technical solution of the utility model is implemented as follows: a lead-acid battery filling device comprises: a battery to be filled, a flat plate and a filling pipe; the battery to be filled is fixed on the flat plate; the filling pipe is arranged above the flat plate, and fills the battery to be filled fixed on the flat plate, and a filling regulating component is provided at the liquid outlet of the filling pipe, the filling regulating component is connected to the filling port of the battery to be filled, and a cavity is provided inside the filling regulating component for extracting electrolyte overflowing from the filling port of the battery to be filled.

[0006] Preferably, it also includes an adjusting part, the bottom end of the adjusting part is slidably connected with the flat plate, and the top end of the adjusting part is snap-fitted with two sides of the bottom of the battery to be filled with liquid.

[0007] Preferably, the liquid injection regulating assembly includes a metal cover, a liquid injection bladder and a catheter; the metal cover is sleeved on the liquid injection tube and fixedly connected thereto; the liquid injection bladder is connected to the lower surface of the metal cover, and a diaphragm is provided inside the liquid injection bladder, and the diaphragm divides the inside of the liquid injection bladder into an upper adsorption chamber and a lower liquid injection chamber in the vertical direction; the upper adsorption chamber is connected to the exhaust duct arranged on the top of the metal cover; the liquid injection front end of the liquid injection tube passes through the diaphragm and is connected to the lower liquid injection chamber; the catheter is connected to the lower liquid injection chamber, and guides the electrolyte in the lower liquid injection chamber into the liquid injection port of the battery to be injected.

[0008] Preferably, it also includes a push-telescopic rod that can be extended and retracted in the vertical direction; the liquid injection bladder is set to be conical; the push-telescopic rod is arranged on both sides of the liquid injection bladder, and the top of the push-telescopic rod is connected to the bottom end of the metal cover, the bottom end of the push-telescopic rod is in contact with the shells on both sides of the liquid injection port of the battery to be injected, and the total length of the push-telescopic rod exceeds the sum of the lengths of the liquid injection bladder and the catheter.

[0009] Preferably, the push-telescopic rod comprises an upper rod, a spring and a lower sleeve rod; the upper rod is sleeved in the lower sleeve rod, and the top of the upper rod is vertically connected to the metal cover; the spring is vertically placed in the lower sleeve rod, and the top of the spring abuts against the upper rod.

[0010] Preferably, the liquid outlet end of the catheter is configured as an oblique incision.

[0011] Preferably, a sealing plug is provided on the top of the exhaust duct.

[0012] Preferably, the adjustment part includes a splint, an adjustment bolt, a long strip adjustment hole and a movable groove; the movable groove is opened along the length direction of the upper end surface of the flat plate, and the long strip adjustment hole is arranged on the side of the flat plate and is connected with the movable groove; there are two splints, and the bottom of the splint is slidably connected with the movable groove, and the top of the splint is clamped with the two sides of the bottom of the battery to be filled with liquid; the adjustment bolt passes through the long strip adjustment hole and is connected with the bottom of the splint.

[0013] Preferably, it also includes a button for adjusting the diameter of the injection tube; the button is arranged on the injection tube, and a sealing rubber ring is provided at the connection between the liquid stop button and the injection tube.

[0014] The beneficial effects of the utility model are embodied in:

[0015] (1) The utility model provides a liquid injection regulating component and a cavity inside the liquid injection regulating component, and the cavity can absorb the electrolyte overflowing from the liquid injection port of the battery to be injected, thereby solving the problem of damage to the environment or human body after the electrolyte overflows, and at the same time realizes resource recycling, making the operation process more environmentally friendly.

[0016] (2) The utility model provides a push-type telescopic rod, which not only makes it easy for the operator to adjust the distance between the injection tube and the injection port at any time during the injection process, but also makes it easy for the operator to observe the liquid level inside the battery to be injected and stop the injection in time, thereby avoiding electrolyte overflow to the greatest extent. In addition, due to the support of the push-type telescopic rod, the injection tube can be more stable during the injection process and is not easy to shake, thereby increasing the safety of manual injection.

[0017] (3) The utility model has a simple structure, is easy to use, and improves the safety of manual battery filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a top view of the flat plate of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the liquid injection liquid regulating component of the utility model.

[0021] Description of reference numerals:

[0022] A, battery A to be filled; a1, filling port; 10, flat plate; 11, clamping plate; 12, adjusting bolt;

[0023] 13. Long strip adjustment hole; 14. Moving groove; 21. Liquid injection tube; 211. Liquid injection front end; 22. Button; 23. Metal cover; 231. Exhaust duct; 24. Press telescopic rod; 25. Liquid injection capsule; 26. Diaphragm; 27. Catheter. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See also Figures 1 to 3 As shown:

[0027] The utility model provides a lead-acid battery injection device, comprising: a battery A to be injected, a flat plate 10 and an injection pipe 21; the battery A to be injected is fixed on the flat plate 10; the injection pipe 21 is arranged above the flat plate 10, and injects liquid into the battery A to be injected fixed on the flat plate 10, and an injection regulating component is arranged at the liquid outlet of the injection pipe 21, and the injection regulating component is connected to the injection port a1 of the battery A to be injected. A cavity is arranged inside the injection regulating component, and the cavity can extract the electrolyte overflowing from the injection port a1 of the battery A to be injected.

[0028] With such a configuration, when the operator is filling the filling port a1 of the battery A to be filled, if the operation is not careful and part of the electrolyte is about to overflow along the filling port a1, the electrolyte can be sucked and recovered through the filling adjustment component, thereby avoiding electrolyte waste and improving the safety of the entire battery filling operation.

[0029] It also includes an adjusting part, the bottom end of which is slidably connected to the flat plate 10, and the top end of which is snap-fitted to the two sides of the bottom of the battery A to be filled with liquid.

[0030] The adjustment part includes a clamping plate 11, an adjustment bolt 12, a long strip adjustment hole 13 and a movable groove 14; the movable groove 14 is opened along the length direction of the upper end surface of the flat plate 10, and the long strip adjustment hole 13 is arranged on the side of the flat plate 10 and is connected with the movable groove 14; there are two clamping plates 11, and the bottom of the clamping plate 11 is slidably connected with the movable groove 14, and the top of the clamping plate 11 is clamped with the two sides of the bottom of the battery A to be filled with liquid; the adjustment bolt 12 passes through the long strip adjustment hole 13 and is connected with the bottom of the clamping plate 11.

[0031] With such a configuration, in actual use, the distance between the clamps 11 can be adjusted according to different types of batteries A to be filled, so as to avoid displacement of the batteries A to be filled during the filling process, thereby improving the safety of the battery filling operation.

[0032] The liquid injection regulating assembly is mainly composed of a metal cover 23 , a liquid injection capsule 25 and a catheter 27 .

[0033] In actual use, the metal cover 23 is sleeved on the injection tube 21 and fixedly connected thereto; the injection capsule 25 is connected to the lower surface of the metal cover 23, and a diaphragm 26 is provided inside the injection capsule 25, which divides the interior of the injection capsule 25 into an upper adsorption chamber and a lower injection chamber along the vertical direction.

[0034] The upper adsorption chamber is communicated with an exhaust conduit 231 disposed on the top of the metal cover 23 , and a sealing plug is disposed on the top of the exhaust conduit 231 .

[0035] The injection front end 211 of the injection tube 21 passes through the diaphragm 26 and is connected to the lower injection cavity; the conduit 27 is connected to the lower injection cavity and guides the electrolyte in the lower injection cavity into the injection port a1 of the battery A to be injected.

[0036] The liquid injection bladder 25 is made of a soft material with good deformation recovery capability, such as rubber or plastic.

[0037] In actual use, the sealing plug at the top of the exhaust duct 231 is plugged on the exhaust duct 231, so that when the injection tube 21 injects liquid into the lower injection chamber, the air in the upper adsorption chamber and part of the air in the lower injection chamber are compressed in the upper adsorption chamber, so that there is always space in the upper adsorption chamber without electrolyte filling.

[0038] This means that when the electrolyte at the injection port a1 of the battery A to be injected is about to overflow or partially overflow onto the shell at the injection port a1, the operator closes the injection tube 21 to stop injecting, and at the same time opens the sealing plug set at the top of the exhaust duct 231. Since the injection capsule 25 is made of soft material, the operator can gently pinch the outside of the injection capsule 25 after opening the sealing plug set at the top of the exhaust duct 231, so that the air in the adsorption cavity on the injection capsule 25 is discharged along the exhaust duct 231, and then the sealing plug on the top of the exhaust duct 231 is plugged back. The injection capsule 25 has a good ability to recover deformation, so that the electrolyte at the injection port a1 of the battery A to be injected can be sucked back during the process of recovering deformation.

[0039] In order to improve the adsorption capacity of the upper adsorption chamber, in actual use, the volume of the lower injection chamber is small enough, the volume ratio between the upper adsorption chamber and the lower injection chamber is at least 10:1, and there is a certain gap between the injection tube 21 and the diaphragm 26 to facilitate the adsorbed electrolyte to enter the upper adsorption chamber.

[0040] As for the electrolyte recovered from the upper adsorption chamber, it can be squeezed into the injection port a1 of the battery A to be injected during the next injection, thereby realizing resource utilization.

[0041] It also includes a push-telescopic rod 24 that can be extended and retracted in the vertical direction; the liquid injection capsule 25 is set to be conical; the push-telescopic rod 24 is arranged on both sides of the liquid injection capsule 25, and the top of the push-telescopic rod 24 is connected to the bottom end of the metal cover 23, and the bottom end of the push-telescopic rod 24 is in contact with the shell on both sides of the liquid injection port a1 of the battery A to be injected, and the total length of the push-telescopic rod 24 exceeds the sum of the lengths of the liquid injection capsule 25 and the catheter 27.

[0042] The pressing telescopic rod 24 includes an upper rod, a spring and a lower sleeve rod; the upper rod is sleeved in the lower sleeve rod, and the top of the upper rod is vertically connected to the metal cover 23; the spring is vertically placed in the lower sleeve rod, and the top of the spring abuts against the upper rod.

[0043] With such an arrangement, in actual use, since the diameter of the conduit 27 is smaller than the diameter of the injection port a1 of the battery A to be injected, in the early stage of the injection operation, the operator presses the metal cover 23 to compress the telescopic rod 24, so that more of the conduit 27 enters the injection port a1. This ensures that even if the flow rate of the injection tube 21 is fast, the electrolyte will not spray out from the injection port a1 of the battery A to be injected, and there is a gap between the conduit 27 and the injection port a1, and the air inside the battery A to be injected can flow out along the gap.

[0044] In addition, during the injection process, the operator can reduce the compression amplitude of the telescopic rod 24 according to the volume of electrolyte injected into the battery A to be injected, thereby facilitating the observation of the liquid level from the injection port a1 of the battery A to be injected, facilitating timely stopping of the injection, and improving the flexibility of the entire injection operation.

[0045] Setting the liquid outlet end of the conduit 27 as an oblique cut can not only increase the liquid outlet area, but also, when absorbing the liquid, the conduit 27 can be gently moved so that the oblique cut fits with the outer shell of the battery A to be injected, thereby quickly absorbing the electrolyte at the outer shell of the injection port a1 of the battery A to be injected.

[0046] In addition, in order to improve the safety of use, a button 22 is also provided. The button 22 is provided on the injection tube 21 and is used to adjust the diameter of the injection tube 21. A sealing rubber ring is provided at the connection between the button 22 and the injection tube 21. In actual use, the button 22 can implement the "one-button water stop" function for the injection tube 21. The principle is similar to that of a one-button water stop shower. Thus, when the liquid at the injection port a1 of the battery A to be injected is about to overflow, the injection tube 21 can be stopped in time, thereby improving the safety of the injection operation.

[0047] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead-acid battery injection device, characterized in that: include: A battery to be injected (A), a flat plate (10) and a liquid injection pipe (21); the battery to be injected (A) is fixed on the flat plate (10); the liquid injection pipe (21) is arranged above the flat plate (10) and injects liquid into the battery to be injected (A) fixed on the flat plate (10); a liquid injection regulating component is provided at the liquid outlet of the liquid injection pipe (21); the liquid injection regulating component is connected to the liquid injection port (a1) of the battery to be injected (A), and a cavity is provided inside the liquid injection regulating component for extracting electrolyte overflowing from the liquid injection port (a1) of the battery to be injected (A).

2. A lead-acid battery injection device according to claim 1, characterized in that: It also comprises an adjusting part, the bottom end of which is slidably connected to the flat plate (10), and the top end of which is snap-connected to the two sides of the bottom of the battery (A) to be filled with liquid.

3. A lead-acid battery injection device according to claim 1 or 2, characterized in that: The liquid injection regulating assembly comprises a metal cover (23), a liquid injection capsule (25) and a conduit (27); the metal cover (23) is sleeved on the liquid injection tube (21) and fixedly connected thereto; the liquid injection capsule (25) is connected to the lower surface of the metal cover (23), and a diaphragm (26) is provided inside the liquid injection capsule (25), and the diaphragm (26) divides the inside of the liquid injection capsule (25) into an upper adsorption chamber and a lower liquid injection chamber in the vertical direction; the upper adsorption chamber is connected to the exhaust conduit (231) provided on the top of the metal cover (23); the liquid injection front end (211) of the liquid injection tube (21) passes through the diaphragm (26) and is connected to the lower liquid injection chamber; the conduit (27) is connected to the lower liquid injection chamber, and guides the electrolyte in the lower liquid injection chamber into the liquid injection port (a1) of the battery (A) to be injected.

4. A lead-acid battery liquid injection device according to claim 3, characterized in that: It also includes a push-telescopic rod (24) that can be extended and retracted in the vertical direction; the liquid injection soft capsule (25) is set to be conical; the push-telescopic rod (24) is arranged on both sides of the liquid injection soft capsule (25), and the top of the push-telescopic rod (24) is connected to the bottom end of the metal cover (23), the bottom end of the push-telescopic rod (24) is in contact with the shells on both sides of the liquid injection port (a1) of the battery (A) to be injected, and the total length of the push-telescopic rod (24) exceeds the sum of the lengths of the liquid injection soft capsule (25) and the catheter (27).

5. A lead-acid battery liquid injection device according to claim 4, characterized in that: The pressing telescopic rod (24) comprises an upper rod, a spring and a lower sleeve rod; the upper rod is sleeved in the lower sleeve rod, and the top of the upper rod is vertically connected to the metal cover (23); the spring is vertically placed in the lower sleeve rod, and the top of the spring abuts against the upper rod.

6. A lead-acid battery liquid injection device according to claim 5, characterized in that: The liquid outlet end of the conduit (27) is configured as an oblique cut.

7. A lead-acid battery liquid injection device according to claim 3, characterized in that: A sealing plug is provided at the top of the exhaust duct (231).

8. A lead-acid battery liquid injection device according to claim 2, characterized in that: The adjustment part comprises a clamping plate (11), an adjustment bolt (12), a long strip adjustment hole (13) and a movable groove (14); the movable groove (14) is opened along the length direction of the upper end surface of the flat plate (10), and the long strip adjustment hole (13) is arranged on the side of the flat plate (10) and is connected with the movable groove (14); the clamping plate (11) has two pieces, and the bottom of the clamping plate (11) is slidably connected with the movable groove (14), and the top of the clamping plate (11) is clamped with the two sides of the bottom of the battery (A) to be injected with liquid; the adjustment bolt (12) passes through the long strip adjustment hole (13) and is connected with the bottom of the clamping plate (11).

9. A lead-acid battery liquid injection device according to claim 6, characterized in that: It also comprises a button (22) for adjusting the diameter of the liquid injection tube (21); the button (22) is arranged on the liquid injection tube (21), and a sealing rubber ring is provided at the connection between the liquid stop button (22) and the liquid injection tube (21).

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