Battery pack protection structure for oil-to-electricity forklift

Abstract

The invention discloses a battery pack protection structure for an oil-to-electricity forklift, and particularly relates to the technical field of forklift accessories, the battery pack protection structure comprises a protection box, an opening is formed in the rear end of the protection box, a drawer is slidably connected in the opening, and a battery mounting groove is formed in the drawer. According to the battery pack protection structure for the oil-to-electricity forklift, the arc-shaped plates arranged on the periphery of the battery pack clamp the battery pack, so that collision caused by sliding of the battery pack in the battery mounting groove when the forklift passes through an undulating road surface can be avoided; a first extrusion spring arranged between the arc-shaped plate and the inner wall of the battery mounting groove provides buffering, so that the impact force of the battery pack is reduced, and the protection effect on the battery pack is improved; and meanwhile, when the battery pack needs to be replaced, the drawer can be pulled out and the battery pack placed in the battery mounting groove can be taken out only by unlocking the fixing plate and the bayonet through the locking assembly, so that the operation is simple and rapid, the time for replacing the battery pack is shortened, and the working efficiency of replacing the battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of forklift accessories, and in particular to a battery pack protection structure for an oil-to-electric forklift. Background Art

[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles that load and unload, stack and transport palletized goods over short distances. The International Organization for Standardization ISO / TC110 calls them industrial vehicles. They are often used for transporting large objects in warehouses and are usually powered by fuel engines or batteries.

[0003] An electric forklift is a forklift that uses electricity to operate. It uses batteries as the power source to drive the travel motor and the hydraulic system motor to achieve travel and loading and unloading operations. Compared with internal combustion forklifts, electric forklifts have the advantages of simple and flexible operation and control, low noise, effective reduction of the labor intensity of operators, improved work efficiency and accuracy, no pollution, and energy saving. With the development of the economy and the improvement of environmental protection and energy-saving requirements, electric forklifts have developed rapidly. Market sales have increased year by year, especially in ports, warehousing, tobacco, food, textile and other industries, electric forklifts are gradually replacing internal combustion forklifts.

[0004] During the use of existing electric forklifts, the battery pack of the electric forklift may collide in the battery compartment due to the uneven road surface on which the forklift is traveling, causing damage to the battery pack. In addition, since the working time of the electric forklift is long and it is often necessary to operate continuously for a long time, in order to ensure the continuity of work, the battery is usually designed to be replaceable. During the battery replacement process, due to the heavy battery pack, it is not convenient for maintenance personnel to remove and replace the battery pack, which usually takes a long time and requires a large workload, which affects the battery replacement efficiency to a certain extent. Summary of the invention

[0005] The main purpose of the present invention is to provide a battery pack protection structure for an oil-to-electric forklift, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A battery pack protection structure for an oil-to-electric forklift comprises a protection box, the rear end of the protection box is provided with an opening, a drawer is slidably connected to the opening, a battery installation slot is installed inside the drawer, the inner walls and bottom wall around the drawer are jointly provided with a buffer slot, the upper part of the outer surface of the battery installation slot is sleeved with a fixed rectangular frame, the rectangular frame is arranged in the buffer slot, a buffer gap is formed between the outer wall of the rectangular frame and the inner wall of the buffer slot, a plurality of buffer springs are jointly fixedly installed between the outer surface and the bottom wall of the battery installation slot and the inner wall of the buffer slot, two convex grooves distributed up and down are provided on the left and right side walls of the inner cavity of the protection box, convex blocks are fixedly installed on the upper and lower sides of the left and right ends of the drawer, the convex blocks slide in the convex grooves, bayonet holes are provided on the rear parts of the left and right side walls of the opening, a panel is fixedly installed on the rear end of the drawer, fixing plates are fixedly installed on the left and right ends of the panel, the fixing plates are stuck in the bayonet holes, and a locking assembly is installed on the fixing plate.

[0008] Preferably, the protective box is provided with a first installation opening on both sides, a breathable plate is fixedly installed in the first installation opening, the drawer is provided with a second installation opening on both ends, a cooling fan is installed in the second installation opening, and the battery installation slot is provided with a third installation opening on both ends, a filter is installed in the third installation opening.

[0009] Preferably, a wiring port is provided on the top of the protection box.

[0010] Preferably, arc-shaped plates are fixedly mounted on the inner walls around the battery installation slot, and a plurality of first extrusion springs are fixedly mounted between the arc-shaped plates and the inner walls of the battery installation slot.

[0011] Preferably, a groove is provided in the middle of the rear end of the panel, and a pull ring handle is installed in the groove.

[0012] Preferably, the upper and lower walls of the bayonet are provided with limiting grooves, the fixing plate is provided with an installation cavity inside, the upper and lower ends of the fixing plate are provided with movable openings corresponding to the limiting grooves, and the installation cavity and the movable opening are connected.

[0013] The two wheels are fixedly mounted on the two gears, and the two wheels are engaged with the gears in the rotation with the wheels respectively.

[0014] Preferably, a slide groove is provided on the outer surface of the rotating rod, and a plurality of latch teeth are fixedly mounted on the inner wall of the sleeve, and the latch teeth slide in the slide groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention discloses a battery pack protection structure for an oil-to-electric forklift. When in use, the battery pack is clamped by arc plates arranged around the battery pack, so that the battery pack can be prevented from sliding in the battery mounting slot and causing collision when the forklift passes through an undulating road surface. A first extrusion spring arranged between the arc plate and the inner wall of the battery mounting slot provides buffering, reduces the impact force of the battery pack, and improves the protection effect of the battery pack. At the same time, when the protection box is subjected to external collision, the protection box, the drawer and the battery mounting slot provide triple protection for the battery pack, so that the battery pack can be prevented from being squeezed, deformed and ruptured by the outside. At the same time, the buffer spring arranged can absorb and consume the impact energy well when impacted, so as to avoid direct impact on the battery pack, and greatly improve the impact resistance of the battery pack. At the same time, when the battery pack needs to be replaced, it is only necessary to unlock the fixing plate and the bayonet through the locking assembly, so as to pull out the drawer and take out the battery pack placed in the battery mounting slot. The operation is simple and fast, which shortens the time of battery pack replacement operation, reduces the workload of the staff, and improves the efficiency of battery replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure inside the protection box of the present invention;

[0019] Figure 3 It is a connection diagram of the drawer and the battery installation slot of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the battery installation slot of the present invention;

[0021] Figure 5 It is an overall cross-sectional view of the present invention;

[0022] Figure 6 It is a partial connection diagram of the fixing plate and the locking assembly of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the locking assembly of the present invention.

[0024] In the figure: 1, protective box; 2, drawer; 3, battery installation slot; 4, panel; 5, fixing plate; 6, locking assembly; 7, wiring port; 8, ventilation plate; 9, cooling fan; 10, bayonet; 11, convex block; 12, filter screen; 13, limiting slot; 14, pull ring handle; 15, rectangular frame; 16, arc plate; 17, buffer spring; 18, first extrusion spring; 101, first installation port; 102, opening; 103 , convex groove; 31, the third mounting port; 41, the groove; 21, the second mounting port; 22, the buffer groove; 51, the mounting cavity; 52, the movable port; 61, the gear; 62, the tooth plate; 63, the clamping plate; 611, the push plate; 64, the rotating rod; 65, the second extrusion spring; 66, the sleeve; 67, the rotating disk; 68, the limiting rod; 69, the limiting disk; 691, the limiting hole; 610, the knob; 641, the slide groove; 661, the clamping tooth. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] Embodiment 1

[0027] See also Figure 1-5As shown, a battery pack protection structure for an oil-to-electric forklift includes a protection box 1, an opening 102 is opened at the rear end of the protection box 1, a drawer 2 is slidably connected in the opening 102, a battery installation slot 3 is installed inside the drawer 2, a buffer slot 22 is jointly opened on the inner wall and bottom wall around the drawer 2, a rectangular frame 15 is fixedly installed on the upper part of the outer surface of the battery installation slot 3, the rectangular frame 15 is arranged in the buffer slot 22, a buffer gap is formed between the outer wall of the rectangular frame 15 and the inner wall of the buffer slot 22, and the outer surface of the battery installation slot 3 and the bottom wall around the bottom wall are fixedly installed. A number of buffer springs 17 are fixedly installed between the inner wall of the buffer groove 22. Two convex grooves 103 distributed up and down are provided on the left and right side walls of the inner cavity of the protective box 1. Convex blocks 11 are fixedly installed on the upper and lower sides of the left and right ends of the drawer 2. The convex blocks 11 slide in the convex grooves 103. The rear parts of the left and right side walls of the opening 102 are provided with bayonet holes 10. A panel 4 is fixedly installed at the rear end of the drawer 2. Fixed plates 5 are fixedly installed on the left and right ends of the panel 4. The fixed plates 5 are stuck in the bayonet holes 10, and a locking assembly 6 is installed on the fixed plates 5.

[0028] Furthermore, arc plates 16 are fixedly installed on the inner walls around the battery mounting groove 3, and a plurality of first extrusion springs 18 are fixedly installed between the arc plates 16 and the inner walls of the battery mounting groove 3. When in use, the battery pack is squeezed and clamped by the arc plates 16 on all sides, which can prevent the battery pack from sliding in the battery mounting groove 3 and colliding with the battery mounting groove 3 when the forklift passes through an undulating road surface. The first extrusion springs 18 arranged between the arc plates 16 and the inner walls of the battery mounting groove 3 provide a buffer, reduce the impact force of the battery pack, and improve the protection effect of the battery pack.

[0029] Furthermore, the protective box 1, the drawer 2 and the battery installation slot 3 are all made of high-strength materials to improve the strength of the entire protective structure. A wiring port 7 is provided on the top of the protective box 1. When in use, the external connector is connected to the battery pack through the wiring port 7.

[0030] Furthermore, a groove 41 is opened in the middle of the rear end of the panel 4, and a pull ring handle 14 is installed in the groove 41. The drawer 2 is pulled out from the protective box 1 through the pull ring handle 14, and the pull ring handle 14 is hidden in the groove 41 when not in use.

[0031] During use, the battery pack is placed in the battery installation slot 3. When the battery pack needs to be replaced, the fixing plate 5 and the bayonet 10 can be unlocked by the locking assembly 6, and the drawer 2 can be pulled out to take out the battery pack placed in the battery installation slot 3. The operation is simple and fast, which shortens the time of battery pack replacement operation, reduces the workload of staff, and improves the efficiency of battery replacement. The arc plate 16 arranged around the battery pack clamps the battery pack to prevent the battery pack from sliding in the battery installation slot 3 and causing collision when the forklift passes through an undulating road surface. The first extrusion spring 18 arranged between the arc plate 16 and the inner wall of the battery installation slot 3 provides buffering, reduces the impact force of the battery pack, and improves the protection effect of the battery pack. At the same time, when the protective box 1 is subjected to external collision, the protective box 1, the drawer 2 and the battery installation slot 3 provide triple protection for the battery pack to prevent the battery pack from being squeezed, deformed and ruptured by the outside. At the same time, the buffer spring 17 arranged can absorb and consume the impact energy well when it is impacted, avoiding direct impact on the battery pack, which greatly improves the impact resistance of the battery pack.

[0032] Embodiment 2

[0033] See also Figure 1-4 As shown, in order to improve the heat dissipation effect of the battery pack, a first installation port 101 is opened on both sides of the protective box 1, and a ventilation plate 8 is fixedly installed in the first installation port 101. A second installation port 21 is opened on both ends of the drawer 2, and a cooling fan 9 is installed in the second installation port 21. A third installation port 31 is opened on both ends of the battery installation slot 3, and a filter 12 is installed in the third installation port 31. The ventilation plate 8, the cooling fan 9 and the filter 12 cooperate with each other to blow out the hot air generated by the battery, thereby improving the heat dissipation effect of the entire battery pack. The use is convenient and practical. At the same time, the filter 12 can prevent external dust from entering the battery installation slot 3 and adhering to the battery pack, thereby affecting the heat dissipation of the battery pack.

[0034] Embodiment 3

[0035] See also Figure 5-7As shown, the upper and lower walls of the bayonet 10 are provided with limiting grooves 13, the interior of the fixed plate 5 is provided with an installation cavity 51, and the upper and lower ends of the fixed plate 5 are provided with movable openings 52 corresponding to the limiting grooves 13, and the installation cavity 51 and the movable opening 52 are connected; the locking assembly 6 includes a gear 61, two push plates 611 and a limiting disk 69, the gear 61 is rotatably installed in the middle of the front wall of the installation cavity 51, the two push plates 611 are slidably installed in the installation cavity 51 and are respectively distributed on the upper and lower sides of the gear 61, the ends of the two push plates 611 away from each other are fixedly installed with a card plate 63, the ends of the card plate 63 away from the push plates 611 pass through the movable opening 52 and are inserted into the limiting groove 13, the ends of the two push plates 611 close to each other are fixedly installed with a tooth plate 62, the two tooth plates 62 are respectively distributed on the left and right sides of the gear 61, the gear 61 and the tooth plate 62 are meshed, and a rotating rod 64 is fixedly installed at the rear end of the gear 61, and a sleeve 66 is sleeved on the outer surface of the rotating rod 64. The sleeve 66 The rear end passes through the fixed plate 5 and is fixedly installed with a knob 610, the sleeve 66 and the fixed plate 5 are slidably connected, a sliding groove 641 is provided on the outer surface of the rotating rod 64, and a plurality of latch teeth 661 are fixedly installed on the inner wall of the sleeve 66. The latch teeth 661 slide in the sliding groove 641, and a rotating disk 67 is fixedly installed on the outer surface of the sleeve 66. A second extrusion spring 65 is sleeved on the outer surface of the rotating rod 64. The second extrusion spring 65 is located between the gear 61 and the sleeve 66. The limiting disk 69 is fixedly installed in the middle of the rear wall of the installation cavity 51, and a plurality of limiting holes 691 are provided at the front end of the limiting disk 69. A limiting rod 68 is fixedly installed at the rear end of the rotating disk 67. Under the action of the elastic force of the second extrusion spring 65, the limiting rod 68 is inserted into the limiting hole 691. The limiting hole 691 limits the limiting rod 68 to prevent the limiting rod 68 from rotating, thereby limiting the rotation of the sleeve 66. The sleeve 66 limits the rotating rod 64 through the latch teeth 661 to prevent the rotating rod 64 from driving the gear 61 to rotate.

[0036] When it is necessary to unlock the fixing plate 5 and the bayonet 10, it is only necessary to grasp the knob 610 and push it forward. The knob 610 drives the sleeve 66 to move forward. The sleeve 66 drives the turntable 67 to approach the gear 61, drives the limiting rod 68 away from the limiting hole 691, and then turns the knob 610. The knob 610 drives the sleeve 66 to rotate. During the sleeve 66 moving forward, the latching tooth 661 slides in the sliding groove 641. While the sleeve 66 rotates, the sleeve 66 drives the rotating rod 64 to rotate through the latching tooth 661 and the sliding groove 641. The rotating rod 64 drives the gear The wheel 61 rotates, and the gear 61 rotates, driving the toothed plates 62 on both sides to slide in the installation cavity 51. The toothed plates 62 drive the push plates 611 on the upper and lower sides to approach each other, and the push plates 611 drive the card plates 63 on both sides to shrink into the installation cavity 51, thereby driving the card plates 63 away from the limiting groove 13, thereby completing the unlocking of the fixed plate 5 and the bayonet 10, so that the drawer 2 can be pulled out and the battery pack placed in the battery installation groove 3 can be taken out. The operation is simple and fast, which shortens the time of battery pack replacement operation, reduces the workload of staff, and improves the efficiency of battery replacement.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A battery pack protection structure for a gasoline-to-electric forklift, comprising a protection box (1), characterized in that: The protective box (1) has an opening (102) at the rear end, a drawer (2) is slidably connected in the opening (102), a battery installation slot (3) is installed inside the drawer (2), a buffer slot (22) is jointly provided on the inner wall and the bottom wall around the drawer (2), a rectangular frame (15) is fixedly installed on the upper part of the outer surface of the battery installation slot (3), the rectangular frame (15) is arranged in the buffer slot (22), a buffer gap is formed between the outer wall of the rectangular frame (15) and the inner wall of the buffer slot (22), and the outer surface and the bottom wall of the battery installation slot (3) are jointly fixed to the inner wall of the buffer slot (22). A plurality of buffer springs (17) are installed. The left and right side walls of the inner cavity of the protection box (1) are provided with two convex grooves (103) distributed up and down. Convex blocks (11) are fixedly installed on the upper and lower sides of the left and right ends of the drawer (2). The convex blocks (11) slide in the convex grooves (103). The rear parts of the left and right side walls of the opening (102) are provided with bayonet holes (10). The rear end of the drawer (2) is fixedly installed with a panel (4). The left and right ends of the panel (4) are fixedly installed with fixed plates (5). The fixed plates (5) are stuck in the bayonet holes (10). A locking assembly (6) is installed on the fixed plates (5).

2. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1 is characterized in that: The protective box (1) is provided with first mounting openings (101) on both left and right sides, and a ventilation plate (8) is fixedly installed in the first mounting opening (101). The drawer (2) is provided with second mounting openings (21) on both left and right ends, and a cooling fan (9) is installed in the second mounting opening (21). The battery mounting slot (3) is provided with third mounting openings (31) on both left and right ends, and a filter (12) is installed in the third mounting opening (31).

3. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1 is characterized in that: The top of the protection box (1) is provided with a wiring port (7).

4. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1, characterized in that: Arc plates (16) are fixedly mounted on the inner walls around the battery installation slot (3), and a plurality of first extrusion springs (18) are fixedly mounted between the arc plates (16) and the inner walls of the battery installation slot (3).

5. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1, characterized in that: A groove (41) is provided in the middle of the rear end of the panel (4), and a pull ring handle (14) is installed in the groove (41).

6. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1, characterized in that: The upper and lower walls of the bayonet (10) are both provided with limiting grooves (13); the interior of the fixing plate (5) is provided with an installation cavity (51); the upper and lower ends of the fixing plate (5) are both provided with movable openings (52) opposite to the limiting grooves (13); the installation cavity (51) and the movable opening (52) are in communication.

7. The battery pack protection structure for a gasoline-to-electric forklift according to claim 1, characterized in that: The locking assembly (6) comprises a gear (61), two push plates (611) and a limiting disk (69); the gear (61) is rotatably mounted in the middle of the front wall of the mounting cavity (51); the two push plates (611) are slidably mounted in the mounting cavity (51) and are respectively distributed on the upper and lower sides of the gear (61); a clamping plate (63) is fixedly mounted on the ends of the two push plates (611) that are away from each other; the ends of the clamping plates (63) that are away from the push plates (611) pass through the movable opening (52) and are inserted into the limiting groove (13); the ends of the two push plates (611) that are close to each other are fixedly mounted with toothed plates (62); the two toothed plates (62) are respectively distributed on the left and right sides of the gear (61); the gear (61) and the toothed plates (62) are meshed; the rear end of the gear (61) is fixedly mounted A rotating rod (64) is provided, the outer surface of the rotating rod (64) is sleeved with a sleeve (66), the outer surface of the sleeve (66) is fixedly provided with a rotating disk (67), the outer surface of the rotating rod (64) is sleeved with a second extrusion spring (65), the second extrusion spring (65) is located between the gear (61) and the sleeve (66), the limiting disk (69) is fixedly provided at the middle of the rear wall of the installation cavity (51), the front end of the limiting disk (69) is provided with a plurality of limiting holes (691), the rear end of the rotating disk (67) is fixedly provided with a limiting rod (68), the limiting rod (68) is matched with the limiting hole (691), the rear end of the sleeve (66) passes through the fixed plate (5) and is fixedly provided with a knob (610), and the sleeve (66) and the fixed plate (5) are slidably connected.

8. The battery pack protection structure for a gasoline-to-electric forklift according to claim 7, characterized in that: The outer surface of the rotating rod (64) is provided with a sliding groove (641), and the inner wall of the sleeve (66) is fixedly mounted with a plurality of latching teeth (661), and the latching teeth (661) slide in the sliding groove (641).

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