Lead storage battery with terminal protection cover

Abstract

The utility model relates to the technical field of lead storage batteries, in particular to a lead storage battery with a terminal protection cover, which comprises a lead storage battery main body and a top cover, the top end of the lead storage battery main body abuts against the top cover, and two sides of the top cover are in threaded connection with a plurality of fixing bolts. When the wire is guided to penetrate through the second sleeve, the wire and the second sleeve are sealed by the internal rubber ring, and then the second sleeve is connected with the first sleeve, so that the second sleeve extrudes the rubber sleeve to move leftwards along the interior of the first sleeve in the process that the second sleeve moves leftwards along the threaded groove of the first sleeve; the rubber sleeve is extruded by the inner wall of the first sleeve, so that the rubber sleeve abuts against the guide outer wall, after the U-shaped groove of the protective cover is connected with the U-shaped rod, the connecting bolt is connected with the connecting hole, the protective cover is fixed, and the elastic resin material is directly arranged on the contact face of the protective cover and the top cover, so that the sealing performance between the protective cover and the top cover is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid batteries, in particular to a lead-acid battery with a terminal protection cover. Background Art

[0002] Lead-acid battery (VRLA) is a storage battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. When the lead-acid battery is in the discharge state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; when it is in the charging state, the main components of the positive and negative electrodes are both lead sulfate.

[0003] For example, the authorization announcement number CN206961968U is a lead-acid battery with a terminal protection cover. The above document sets the terminal in a recess on one side of the slot cover and then protects it with a protective cover to avoid short circuits caused by conductive objects accidentally touching the positive and negative terminals during storage, transportation and use of the lead-acid battery. When in use, the connecting wires only need to be connected from both sides of the protective cover, and there is no need to open the protective cover, which is easy to use. The overall surface of the lead-acid battery is flat, which maintains its appearance while being convenient for stacking, storage and transportation. However, during the use of the lead-acid battery in the above document, the protective cover is set on the upper part of the lead-acid battery terminal, so that the lead-acid battery terminal is still exposed to the external environment, so that after the connection between the lead-acid battery terminal and the external wire is completed, it is easy to be affected by weather factors such as rainy days, so that rainwater can easily penetrate into the inside of the terminal, resulting in a short circuit between the lead-acid battery terminal and the external wire, thereby endangering the safety of the battery. In addition, during the use of the lead-acid battery in the above document, the external wire of the equipment is pressed on the lead-acid battery terminal by bolts and nuts. In this way, after the wires are connected, the lead-acid battery is moved or transported with the equipment. Due to the vibration that is easy to be generated by the powered equipment during transportation, the bolts and nuts are easy to loosen, resulting in poor contact between the external wire and the lead-acid battery terminal, causing equipment failure. Utility Model Content

[0004] The utility model aims to solve the problem that rainwater penetrates into the inside of the connecting terminal of the existing lead-acid battery when it is used in a rainy day environment, causing a short circuit between the wire and the connecting terminal, and the problem that the existing lead-acid battery is prone to loosening after the external wire is connected to the terminal by bolts and nuts, resulting in poor contact and causing equipment failure, and proposes a lead-acid battery with a terminal protection cover.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lead-acid battery with a terminal protection cover is designed, comprising a lead-acid battery body and a top cover, the top of the lead-acid battery body is tightly pressed against the top cover, both sides of the top cover are threadedly connected with a plurality of fixing bolts, the bottoms of the fixing bolts are all threadedly connected with the lead-acid battery body, the middle of the top of the top cover is fixedly connected with a plurality of connecting seats, the bottom of the connecting seat is fixedly connected with the connecting terminal, the bottom of the connecting terminal is fitted with the fixed terminal, the bottom end of the fixed terminal is welded to the end pole of the lead-acid battery body, the top of the connecting seat is provided with a fixing structure, and the right side of the top of the top cover is provided with a protective structure.

[0007] Preferably, the protective structure includes a protective cover, the outer wall of the protective cover is fitted with the top cover, the bottom of the right end of the protective cover is fixedly connected to a plurality of connecting ears, the middle of the connecting ears is threadedly connected to a connecting bolt, the right side of the protective cover is fixedly connected to a plurality of first sleeves, the outer wall of the first sleeve is threadedly connected to the second sleeve, the inner wall of the first sleeve is tightly pressed against the rubber sleeve, the right end of the rubber sleeve is tightly pressed against the second sleeve, and the right side of the second sleeve is fixedly connected to a rubber ring.

[0008] Preferably, the bottom of the outer wall of the connecting bolts on both sides are threadedly connected to the connecting holes on both sides respectively, and the connecting holes are located on the right side of the top.

[0009] Preferably, a U-shaped groove is processed on the top of the protective cover, the U-shaped groove matches the U-shaped rod, and the end of the U-shaped rod is fixedly connected to the top cover.

[0010] Preferably, a wire insertion hole is processed on the right side of the connecting seat, sliding grooves are processed on both sides of the inside of the connecting seat respectively, and a second limiting portion is arranged at the top of the connecting seat, and the second limiting portion is composed of multiple rectangular blocks distributed in an equiangular ring at the top of the connecting seat.

[0011] Preferably, the fixing structure includes a sleeve block, the outer walls of the sleeve block are respectively loosely matched with the slide grooves of the connecting seat, the inner ends of the sleeve blocks are fixedly connected to the pressure blocks, the top end of the pressure blocks is fixedly connected to the screw, the outer wall of the screw is threadedly connected to the threaded sleeve, a plurality of guide grooves are processed on both sides of the threaded sleeve, the guide grooves are loosely matched with the guide block, the top end of the guide block is fixedly connected to one end of the spring, the other end of the spring is fixedly connected to the threaded sleeve, the outer ends of the guide blocks on both sides are fixedly connected to the circular ring, and the bottom end of the circular ring is provided with a first limiting portion.

[0012] Preferably, the first limiting portion is the same as the sliding groove, and the bottom of the first limiting portion is engaged with the sliding groove.

[0013] Preferably, the bottom of the threaded sleeve is rotatably connected to the connecting seat, and the outer wall of the ring is processed relatively roughly, thereby increasing the friction between the hand of the person and the ring to facilitate the rotation of the ring.

[0014] The utility model provides a lead-acid battery with a terminal protection cover, which has the beneficial effects that: when the guide passes through the second sleeve, the internal rubber ring seals the wire and the second sleeve, and then the second sleeve is connected to the first sleeve, so that when the second sleeve moves to the left along the thread groove of the first sleeve, the second sleeve squeezes the rubber sleeve and moves to the left along the inside of the first sleeve, and the rubber sleeve is squeezed by the inner wall of the first sleeve, so that the rubber sleeve is tightly pressed against the outer wall of the guide, and after the U-shaped groove of the protection cover is connected to the U-shaped rod, the connecting bolt is connected to the connecting hole to fix the protection cover, and the elastic resin material is directly provided on the contact surface between the protection cover and the top cover, so as to ensure the sealing between the protection cover and the top cover, and avoid the situation that rainwater penetrates into the inside of the connection terminal when the lead-acid battery is used in a rainy day environment, causing a short circuit between the wire and the connection terminal, thereby ensuring the safety of the lead-acid battery;

[0015] When a person moves the ring upward, the ring drives the guide block along the guide groove to drive the spring to compress, so that the first limit part is separated from the second limit part, and then the ring is rotated, the ring drives the guide blocks on both sides to move in a circle, the guide block drives the threaded sleeve to rotate, the threaded sleeve drives the screw to move downward, the screw drives the pressure block to move downward, the pressure block drives the sleeve block to move downward along the slide groove, the pressure block squeezes the wire and the connecting terminal tightly, and then the ring is loosened, the elastic force of the spring makes the first limit part and the second limit part clamped, thereby realizing the electrical connection between the wire and the lead-acid battery, avoiding the existing lead-acid battery. The situation that the process of connecting the external wire to the terminal through bolts and nuts is prone to loosening, resulting in poor contact and equipment failure occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure;

[0018] Figure 3 for Figure 2 The structural diagram of A in the figure;

[0019] Figure 4 for Figure 2 Schematic diagram of the structure of B;

[0020] Figure 5 for Figure 2 A schematic diagram of the structure of the middle guide block, the circular ring and the first limiting part;

[0021] Figure 6 for Figure 2 A schematic diagram of the structure of the middle connecting seat, the threaded sleeve and the second limiting part;

[0022] Figure 7 It is a schematic diagram of the top structure of the utility model.

[0023] In the figure: 1. lead-acid battery body, 2. top cover, 201. connecting hole, 3. protective structure, 301. protective cover, 3011. U-shaped groove, 302. connecting ear, 303. connecting bolt, 304. first sleeve, 305. rubber sleeve, 306. second sleeve, 307. rubber ring, 4. fixing structure, 401. sleeve block, 402. pressing block, 403. screw, 404. threaded sleeve, 4041. guide groove, 405. spring, 406. guide block, 407. ring, 4071. first limiting part, 5. connecting seat, 501. wire insertion hole, 502. second limiting part, 503. slide groove, 6. fixed terminal, 7. connecting terminal, 8. fixing bolt, 9. U-shaped rod. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Embodiment 1:

[0026] See attached Figure 1-7 A lead-acid battery with a terminal protection cover comprises a lead-acid battery body 1 and a top cover 2, the top of the lead-acid battery body 1 is tightly pressed against the top cover 2, the two sides of the top cover 2 are threadedly connected with a plurality of fixing bolts 8, the bottoms of the fixing bolts 8 are all threadedly connected with the lead-acid battery body 1, the middle part of the top of the top cover 2 is fixedly connected with a plurality of connecting seats 5, the bottom of the connecting seat 5 is fixedly connected with a connecting terminal 7, the bottom of the connecting terminal 7 is fitted with a fixed terminal 6, the bottom end of the fixed terminal 6 is welded to the end pole of the lead-acid battery body 1, a fixing structure 4 is arranged on the top of the connecting seat 5, an external wire is connected to the connecting terminal 7 through the fixing structure 4, so that the external wire and the connecting terminal are not directly in poor contact, resulting in damage to the equipment, a protective structure 3 is arranged on the right side of the top of the top cover 2, through the protective structure 3, it is avoided that when the lead-acid battery is used in a rainy environment, rainwater penetrates into the inside of the connecting terminal, causing a short circuit between the wire and the connecting terminal.

[0027] The protective structure 3 includes a protective cover 301, the outer wall of the protective cover 301 is fitted with the top cover 2, the right end bottom of the protective cover 301 is fixedly connected to a plurality of connecting ears 302, the protective cover 301, the connecting ears 302, the first sleeve 304, the rubber sleeve 305 and the second sleeve 306 are all made of insulating materials, the middle part of the connecting ear 302 is threadedly connected to the connecting bolt 303, the personnel rotate the connecting bolt 303 with a tool of corresponding size, so that the connecting bolt 303 is separated from the connecting hole 201, so as to realize the disassembly of the protective cover 301, the outer surface of the second sleeve 306 is processed relatively roughly, which increases the friction between the personnel's hand and the second sleeve 306, and facilitates the personnel to rotate the second sleeve 306, the contact surface between the protective cover 301 and the top cover 2 is directly provided with an elastic resin material, which ensures the sealing between the protective cover 301 and the top cover 2, the right side of the protective cover 301 is connected to a plurality of The first sleeve 304 is fixedly connected. When the wire passes through the second sleeve 306, the internal rubber ring 307 is tightly pressed against the wire, and the wire and the second sleeve 306 are sealed by the rubber ring 307. The outer wall of the first sleeve 304 is threadedly connected to the second sleeve 306, and the inner wall of the first sleeve 304 is tightly pressed against the rubber sleeve 305. The right end of the rubber sleeve 305 is tightly pressed against the second sleeve 306. The right side of the second sleeve 306 is fixedly connected to the rubber ring 307. The bottom of the outer wall of the connecting bolts 303 on both sides are respectively threadedly connected to the connecting holes 201 on both sides. The connecting hole 201 is located on the top right side of 2. A U-shaped groove 3011 is processed on the top of the protective cover 301. The U-shaped groove 3011 matches the U-shaped rod 9. The end of the U-shaped rod 9 is fixedly connected to the top cover 2. The restriction between the U-shaped rod 9 and the U-shaped groove 3011 avoids the protective cover 301 from being skewed or offset.

[0028] When connecting the external wire of the equipment to the lead-acid battery, the personnel rotate the connecting bolt 303 to separate the connecting bolt 303 from the connecting hole 201, thereby disassembling the protective cover 301, and then rotate the second sleeve 306 to separate the second sleeve 306 from the first sleeve 304, and then pass the external wire through the second sleeve 306, the rubber sleeve 305 and the first sleeve 304 in sequence, and then the second sleeve 306 is connected to the first sleeve 304. When the personnel rotates the second sleeve 306 to move the second sleeve 306 to the left along the thread groove of the first sleeve 304, the second sleeve 306 squeezes the rubber sleeve 305 to move to the left along the inside of the first sleeve 304, and the rubber sleeve 305 is squeezed by the inner wall of the first sleeve 304, so that the rubber sleeve 305 is tightly pressed against the guide outer wall. After connecting the U-shaped groove of the protective cover 301 to the U-shaped rod 9, the connecting bolt 303 is connected to the connecting hole 201, thereby fixing the protective cover 301.

[0029] A wire insertion hole 501 is processed on the right side of the connecting seat 5, and the wire is inserted into the interior of the connecting seat 5 through the wire insertion hole 501. Slide grooves 503 are processed on both sides of the interior of the connecting seat 5 respectively. The slide grooves 503 and the sleeve block 401 prevent the pressure block 402 from deflecting. A second limiting portion 502 is arranged at the top of the connecting seat 5. The second limiting portion 502 is composed of a plurality of rectangular blocks distributed in an annular shape at equal angles on the top of the connecting seat 5. The elastic force of the spring 405 acts on the circular ring 407, and the first limiting portion 4071 cooperates with the second limiting portion 502 to prevent the threaded sleeve 404 from deflecting.

[0030] The fixing structure 4 includes a sleeve block 401, the outer wall of the sleeve block 401 is respectively matched with the slide groove 503 of the connecting seat 5, and the inner end of the sleeve block 401 is fixedly connected to the pressing block 402. Figure 3 As shown, the spring 405 is in a compressed state. During this process, the ring 407 still has a downward movement tendency, which prevents the first limiting portion 4071 from shaking, improves the stability between the first limiting portion 4071 and the second limiting portion 502, and the top of the pressing block 402 is fixedly connected to the screw 403. During the rotation of the threaded sleeve 404, the screw 403 is restricted by the sleeve blocks 401 on both sides of the pressing block 402, so that the screw 403 moves along the internal thread groove of the threaded sleeve 404, the screw 403 drives the pressing block 402 to move, and the pressing block 402 drives the sleeve blocks 401 on both sides to slide along the slide groove 503, the outer wall of the screw 403 is threadedly connected to the threaded sleeve 404, and a plurality of guide grooves 4041 are processed on both sides of the threaded sleeve 404, and the guide grooves 4041 are clearance-matched with the guide blocks 406. The top of 6 is fixedly connected with one end of spring 405, the other end of spring 405 is fixedly connected with threaded sleeve 404, the outer ends of guide blocks 406 on both sides are fixedly connected with circular ring 407, after moving circular ring 407 upward, rotate circular ring 407, circular ring 407 drives guide blocks 406 on both sides to move in a circle, guide blocks 406 and guide groove 4041 are restricted, so that guide blocks 406 can drive threaded sleeve 404 to rotate, the bottom end of circular ring 407 is provided with a first limiting portion 4071, the first limiting portion 4071 is the same as the slide groove 503, the bottom of the first limiting portion 4071 is clamped with the slide groove 503, the bottom of threaded sleeve 404 is rotatably connected with connecting seat 5, the outer wall of circular ring 407 is processed relatively roughly, the friction between the hand of personnel and circular ring 407 is increased, and the circular ring 407 is convenient for rotating;

[0031] After the wire is passed through the wire insertion hole 501 and extended to the inside of the connecting seat 5, the person moves the ring 407 upward, and the ring 407 drives the guide block 406 along the guide groove 4041 to drive the spring 405 to be compressed, so that the first limit part 4071 is separated from the second limit part 502, and then the ring 407 is rotated, and the ring 407 drives the guide blocks 406 on both sides to move in a circle, and the guide blocks 406 drive the threaded sleeve 404 to rotate, and the threaded sleeve 404 drives the screw 403 to move downward, and the screw 403 drives the pressure block 402 to move downward, and the pressure block 402 drives the sleeve block 401 to move downward along the slide groove 503, and the pressure block 402 squeezes the wire and presses it against the connecting terminal 7, and then the ring 407 is released, and the elastic force of the spring 405 makes the first limit part 4071 and the second limit part 5 clamped, thereby realizing the electrical connection between the wire and the lead-acid battery.

[0032] Working principle:

[0033] When connecting the external wire of the device to the lead-acid battery, the personnel rotate the connecting bolt 303 to remove the protective cover 301, and then rotate the second sleeve 306 to separate the second sleeve 306 from the first sleeve 304, and pass the external wire through the second sleeve 306, the rubber sleeve 305 and the first sleeve 304 in sequence;

[0034] Then, the wire is passed through the wire insertion hole 501 to the inside of the connecting seat 5, and the person moves the ring 407 upward, and the ring 407 drives the guide block 406 to drive the spring 405 to compress along the guide groove 4041, so that the first limit part 4071 is separated from the second limit part 502, and then the ring 407 is rotated, and the ring 407 drives the guide blocks 406 on both sides to move in a circle, and the guide blocks 406 drive the threaded sleeve 404 to rotate, and the threaded sleeve 404 drives the screw 403 to move downward, and the screw 403 The pressing block 402 is driven to move downward, and the pressing block 402 drives the sleeve block 401 to move downward along the slide groove 503. The pressing block 402 squeezes the wire and presses it against the connecting terminal 7, and then the ring 407 is loosened. The elastic force of the spring 405 makes the first limiting part 4071 and the second limiting part 5 engage with each other, thereby realizing the electrical connection between the wire and the lead-acid battery, avoiding the problem that the existing lead-acid battery is easily loosened and causes poor contact during the process of connecting the external wire to the connecting terminal through bolts and nuts;

[0035] When the guide passes through the second sleeve 306, the internal rubber ring 307 seals the wire and the second sleeve 306, and then the second sleeve 306 is connected to the first sleeve 304, so that during the second sleeve 306 moves to the left along the threaded groove of the first sleeve 304, the second sleeve 306 squeezes the rubber sleeve 305 and moves to the left along the inside of the first sleeve 304, and the rubber sleeve 305 is squeezed by the inner wall of the first sleeve 304, so that the rubber sleeve 305 is tightly pressed against the outer wall of the guide, and after the U-shaped groove of the protective cover 301 is connected to the U-shaped rod 9, the connecting bolt 303 is connected to the connecting hole 201 to fix the protective cover 301, and the elastic resin material is directly provided on the contact surface between the protective cover 301 and the top cover 2, so as to ensure the sealing between the protective cover 301 and the top cover 2, and to avoid the situation that rainwater penetrates into the inside of the connecting terminal and causes a short circuit between the wire and the connecting terminal when the lead-acid battery is used in a rainy environment.

[0036] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A lead-acid battery with a terminal protection cover, comprising a lead-acid battery body (1) and a top cover (2), wherein the top end of the lead-acid battery body (1) is tightly abutted against the top cover (2), characterized in that: Both sides of the top cover (2) are threadedly connected to a plurality of fixing bolts (8), the bottoms of the fixing bolts (8) are all threadedly connected to the lead-acid battery body (1), the middle of the top end of the top cover (2) is fixedly connected to a plurality of connection seats (5), the bottom of the connection seat (5) is fixedly connected to a connection terminal (7), the bottom of the connection terminal (7) is fitted with a fixing terminal (6), the bottom end of the fixing terminal (6) is welded to the terminal pole of the lead-acid battery body (1), the top of the connection seat (5) is provided with a fixing structure (4), and the right side of the top end of the top cover (2) is provided with a protective structure (3).

2. A lead-acid battery with a terminal protection cover according to claim 1, characterized in that: The protective structure (3) comprises a protective cover (301), the outer wall of the protective cover (301) is fitted with the top cover (2), the bottom of the right end of the protective cover (301) is fixedly connected to a plurality of connecting ears (302), the middle of the connecting ears (302) is threadedly connected to a connecting bolt (303), the right side of the protective cover (301) is fixedly connected to a plurality of first sleeves (304), the outer wall of the first sleeve (304) is threadedly connected to the second sleeve (306), the inner wall of the first sleeve (304) is tightly abutted against a rubber sleeve (305), the right end of the rubber sleeve (305) is tightly abutted against the second sleeve (306), and the right side of the second sleeve (306) is fixedly connected to a rubber ring (307).

3. A lead-acid battery with a terminal protection cover according to claim 2, characterized in that: The bottom of the outer wall of the connecting bolts (303) on both sides are respectively threadedly connected to the connecting holes (201) on both sides, and the connecting holes (201) are located on the top right side of (2).

4. A lead-acid battery with a terminal protection cover according to claim 2, characterized in that: A U-shaped groove (3011) is processed on the top of the protection cover (301), and the U-shaped groove (3011) matches the U-shaped rod (9), and the end of the U-shaped rod (9) is fixedly connected to the top cover (2).

5. A lead-acid battery with a terminal protection cover according to claim 1, characterized in that: The right side of the connecting seat (5) is processed with a wire insertion hole (501), the inner two sides of the connecting seat (5) are respectively processed with sliding grooves (503), and the top of the connecting seat (5) is provided with a second limiting portion (502), and the second limiting portion (502) is composed of a plurality of rectangular blocks distributed in an annular manner at equal angles on the top of the connecting seat (5).

6. A lead-acid battery with a terminal protection cover according to claim 1, characterized in that: The fixing structure (4) comprises a sleeve block (401), the outer walls of which are respectively loosely matched with the slide grooves (503) of the connecting seat (5), the inner ends of which are fixedly connected to the pressing block (402), the top end of which is fixedly connected to the screw rod (403), the outer wall of which is threadedly connected to the threaded sleeve (404), a plurality of guide grooves (4041) are machined on both sides of the threaded sleeve (404), the guide grooves (4041) are loosely matched with the guide block (406), the top end of which is fixedly connected to one end of the spring (405), the other end of which is fixedly connected to the threaded sleeve (404), the outer ends of which are fixedly connected to the circular ring (407), the bottom end of which is provided with a first limiting portion (4071).

7. A lead-acid battery with a terminal protection cover according to claim 6, characterized in that: The first limiting portion (4071) is the same as the sliding groove (503), and the bottom of the first limiting portion (4071) is engaged with the sliding groove (503).

8. A lead-acid battery with a terminal protection cover according to claim 6, characterized in that: The bottom of the threaded sleeve (404) is rotatably connected to the connecting seat (5), and the outer wall of the ring (407) is processed relatively roughly, thereby increasing the friction between the hand of a person and the ring (407) and facilitating the rotation of the ring (407).

Images