Quick-change limiting mechanism of side-pulling battery and forklift truck

Abstract

The utility model discloses a kind of quick-change limiting mechanisms of side-pull battery, install on battery compartment for limiting battery, quick-change limiting mechanism includes the base fixed on battery compartment, the base is rotatably connected with handle, the front end of the handle is rotatably connected with the limiting mechanism for limiting the shell edge of battery, the limiting mechanism includes abutting pressure piece and limiting piece;When handle is pressed down, abutting pressure piece cooperates with battery compartment and restricts battery in vertical, left and right direction movement, limiting piece restricts battery in front and back direction movement.It also discloses a forklift containing the above-mentioned quick-change limiting mechanism.In the application, the quick-change limiting mechanism can realize the freedom degree restriction of X, Y, Z axis direction to battery, so that battery is completely restricted, even when driving on bumpy road, battery will not slide and other dangers due to shaking.And it is simple to operate, greatly improves the efficiency of battery replacement.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a quick-change limiting mechanism for a side-pull battery and a forklift. Background Technology

[0002] Electric forklifts are powered by batteries. Since batteries need to be frequently removed from the frame for charging and then reinstalled fully charged, batteries are now generally moved in and out of the frame using a side-pull method to improve battery replacement efficiency and reduce manual handling.

[0003] The battery is mounted on the frame. To prevent the battery from slipping or falling off during vehicle operation, a battery compartment 2 is formed around the battery using the side panels 23, front panel 24, and rear panel 25 of the frame. Figure 1 As shown in the diagram, one side panel has a door for battery entry and exit, and a stop block is typically used to limit the left and right movement of the battery. The stop block usually has a gap adjustment mechanism to control the left and right clearance of the battery. If the gap is too small, it is inconvenient to remove and install the stop block; if the gap is too large, the battery will wobble and the left and right clearance will not be effectively controlled. Additionally, there is usually no limit between the battery and the front panel 24 and the rear panel 25. When the forklift starts or brakes, the battery may sometimes hit the forklift and make abnormal noises. Alternatively, bolts can be used to completely fix the battery to the side panel, but this is not conducive to quick battery replacement and affects production efficiency. Utility Model Content

[0004] Based on the above-mentioned technical problems, this utility model proposes a quick-change limiting mechanism for a side-pull battery and a forklift containing the quick-change limiting mechanism, which realizes the quick-change of the battery while limiting it, so as to prevent the battery from shaking when the vehicle is moving.

[0005] The specific technical solution of this utility model is as follows: A quick-change limiting mechanism for a side-pull battery is installed on the battery compartment to limit the battery's movement. The quick-change limiting mechanism includes a base fixed to the battery compartment, a handle rotatably connected to the base, and a limiting mechanism for limiting the edge of the battery's outer casing rotatably connected to the front end of the handle. The limiting mechanism includes a pressing member and a limiting member. When the handle is pressed down, the pressing member cooperates with the battery compartment to restrict the battery's movement in the vertical and left-right directions, while the limiting member restricts the battery's movement in the front-back direction.

[0006] A further embodiment also includes a rotating plate, one end of which is rotatably connected to the base via a first pin, and the other end of which is rotatably connected to the handle via a second pin.

[0007] The pressing member and the limiting member are fixedly connected; the limiting member includes a base plate and a connecting plate and a snap-fit ​​plate respectively fixed on both sides of the base plate; the connecting plate is rotatably connected to the base and the handle respectively, and the end of the snap-fit ​​plate is provided with a trapezoidal groove that matches the edge of the battery casing.

[0008] In a further embodiment, the connecting plate is provided with a third shaft hole A and a fourth shaft hole A, wherein the third shaft hole A is rotatably connected to the base through a third pin, and the fourth shaft hole A is rotatably connected to the handle through a fourth pin.

[0009] In a further embodiment, the base includes a base plate and a pair of shaft plates fixed parallel to the base plate. Each pair of shaft plates has a first shaft hole A and a third shaft hole B. A shaft groove is formed on the shaft plate located between the first shaft hole A and the third shaft hole B. The first shaft hole A is connected to the rotating plate through a first pin, and the third shaft hole B is rotatably connected to the limiting member through a third pin.

[0010] In a further embodiment, the handle has an L-shaped structure, with a limiting groove formed between its connecting section and the operating section. The connecting section has a second shaft hole B and a fourth shaft hole B, and the connecting section between the second shaft hole B and the fourth shaft hole B has an clearance groove. The second shaft hole B is rotatably connected to the rotating plate through a second pin, and the fourth shaft hole B is rotatably connected to the limiting member through a fourth pin.

[0011] In a further embodiment, a U-shaped groove is provided on the edge of the battery casing, and a rubber pad is fixed to the bottom surface of the U-shaped groove; when the handle is pressed down, the pressing member is located in the U-shaped groove to limit the battery.

[0012] The second utility model objective of this utility model is to provide a forklift, which includes a battery compartment mounted on a frame. The upper end of one side wall of the battery compartment is fixed with a quick-change limiting mechanism as disclosed above, which is used to limit the battery placed in the battery compartment.

[0013] The steps for quick-change of the side-pull battery using the above-mentioned quick-change limiting mechanism are as follows: S1. Lift the handle of the quick-change limiting mechanism upward to the open state, put the battery into the battery compartment door, and then push the battery in forcefully. The battery rolls inward under the action of the rollers, and its inner end contacts the side plate. The U-shaped groove on the battery shell corresponds to the position of the quick-change limiting mechanism. S2. When the handle is pressed down, the pressing part is located in the U-shaped groove. By pressing the side wall and bottom of the U-shaped groove, it cooperates with the side plate and roller to limit the battery in the left and right and vertical directions respectively. At this time, the limiting part is stuck on the edge of the battery shell, restricting the battery from moving in the front and back directions. S3. When the handle is pressed down to the position, the limiting groove on the handle is tangent to the outer periphery of the first pin to limit the movement, that is, to lock the first pin; at this time, in the same longitudinal section, the center of the second pin is to the lower left of the line connecting the centers of the first and fourth pins, thus locking the handle. S4. When the battery needs to be replaced, lift the operating section of the handle upwards. The connecting section will drive the second pin to rotate the rotating plate around the first pin. At the same time, the fourth pin will drive the limiting member to rotate around the third pin, causing the front end of the limiting member to flip upwards 90 degrees and separate from the battery casing. That is, the pressing member and the limiting member flip upwards and detach from the battery, so the battery can be pulled out from the side door for quick replacement.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows: The quick-change limiting mechanism of this application is simple and convenient to operate. It only requires operating the operating section of the handle to limit or release the battery, thereby greatly improving the efficiency of battery replacement and achieving the purpose of quick replacement.

[0015] In operation, the quick-change limiting mechanism of this application, when the handle is pressed down, the pressing component is positioned precisely within the U-shaped groove. Through its compression of the sidewalls and bottom of the U-shaped groove, it cooperates with the side plate and rollers to limit the battery's lateral and vertical movement. At this time, the limiting component is also engaged with the edge of the battery's outer casing, restricting the battery's forward and backward movement. When the handle is lifted upward, the pressing component and the limiting component flip upward and disengage from the battery, allowing the battery to be pulled out from the side compartment for quick replacement.

[0016] Therefore, the quick-change limiting mechanism in this application can restrict the battery's degrees of freedom in the X, Y, and Z axes, so that the battery is completely restricted and will not slip or cause danger even when driving on bumpy roads. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the vehicle frame; Figure 2 This is a schematic diagram of the battery structure; Figure 3 This is a structural diagram of the quick-change limit mechanism; Figure 4 This is a schematic diagram of the battery being mounted on the vehicle frame. Figure 5 A schematic diagram of the quick-change limit mechanism when it is clamped; Figure 6 A schematic diagram showing the quick-change limit mechanism when it is released; Figure 7 This is a structural diagram of the handle in the quick-change limit mechanism; Figure 8 This is a structural diagram of the base in the quick-change limit mechanism; Figure 9 This is a structural diagram of the transfer plate of the quick-change limit mechanism; Figure 10 This is a structural diagram of the limit component in the quick-change limit mechanism; Figure 11 This is a schematic diagram of the pressing component in the quick-change limit mechanism; In the diagram: 1-Limiting mechanism, 11-Handle, 111-Fourth shaft hole B, 112-Second shaft hole B, 113-Limiting groove, 12-Base, 121-Base plate, 1211-Oval hole, 122-Shaft plate, 1221-First shaft hole A, 1222-Third shaft hole B, 13-Pressure piece, 14-Limiting piece, 141-Base plate, 142-Bending plate, 143-Snap-fit ​​plate, 144-Trapezoidal groove, 145-Third shaft hole A, 146-Fourth shaft hole A, 147-Threaded hole, 15-Cotter pin, 161-First pin, 162-Second pin, 163-Third pin, 164-Fourth pin, 17-Rotating plate, 171-First shaft hole B, 172-Second shaft hole A; 2-Battery compartment, 21-Mounting plate, 22-Roller, 23-Side panel, 24-Front panel, 25-Rear panel; 3-Battery, 31-U-shaped groove, 32-Rubber pad. Detailed Implementation

[0018] 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.

[0019] like Figure 1 As shown, the battery compartment 2 is mounted on the vehicle frame and is formed by two side panels 23, a front panel 24, and a rear panel 25. One of the side panels has a door for the battery 3 to enter and exit. A mounting plate 21 is fixed to the top of the inner wall of the front panel 24 for fixing the quick-change limiting mechanism 1. The bottom of the battery compartment 2 is provided with multiple rollers 22 for the battery 3 to roll in and out.

[0020] like Figure 2 As shown, the outer edge of the battery 3 protrudes, and a U-shaped groove 31 is formed on it. A rubber pad 32 is glued to the bottom surface of the U-shaped groove 31. When the handle 11 is pressed down, the pressing member 13 is located in the U-shaped groove 31. By pressing the side wall and bottom of the U-shaped groove 31, it cooperates with the side plate 23 and the roller 22 to limit the left and right and vertical directions of the battery 3.

[0021] Example 1: refer to Figure 3-11 This embodiment provides a quick-change limiting mechanism for a side-pull battery, installed on the battery compartment to limit the movement of the battery 3. The quick-change limiting mechanism includes a base 12 fixed on the battery compartment, with a handle 11 rotatably connected to the base 12. The front end of the handle 11 is rotatably connected to a limiting mechanism for limiting the edge of the battery 3's outer casing. The limiting mechanism includes a pressing member 13 and a limiting member 14. When the handle 11 is pressed down, the pressing member 13 cooperates with the battery compartment to restrict the battery's movement in the vertical and left-right directions, while the limiting member 14 restricts the battery's movement in the front-back direction. Specifically, when the handle 11 is pressed down, the pressing member 13 is located within the U-shaped groove 31. By pressing against the side wall and bottom end of the U-shaped groove 31, it cooperates with the side plate 23 and the roller 22 to limit the battery 3's movement in the left-right and vertical directions, respectively. At this time, the limiting member 14 is engaged on the edge of the battery 3's outer casing, restricting the battery 3's movement in the front-back direction.

[0022] In a specific embodiment, a rotating plate 17 is also included, with a first shaft hole B 171 and a second shaft hole A 172 respectively opened at both ends of the rotating plate 17 (e.g., ...). Figure 9 As shown in the figure, one end of the rotating plate 17 is rotatably connected to the base 12 via the first pin 161, and the other end is rotatably connected to the handle 11 via the second pin 162.

[0023] The pressing member 13 is fixedly connected to the limiting member 14; specifically as follows: Figure 4 , 5 As shown in Figures 6 and 7, the pressing member 13 in this application can be a rubber pad with bolts, and the bolts on it are screwed into the threaded holes 147 on the limiting member 14 to achieve the connection between the two.

[0024] The limiting member 14 is as follows Figure 10 As shown, it includes a base plate 141 and a connecting plate 142 and a snap-fit ​​plate 143 respectively fixed on both sides of the base plate; the connecting plate 142 is rotatably connected to the base 12 and the handle 11 respectively, and the end of the snap-fit ​​plate 143 is provided with a trapezoidal groove 144 that matches the edge of the outer shell of the battery 3.

[0025] Specifically, the connecting plate 142 has a third shaft hole A 145 and a fourth shaft hole A 146. The third shaft hole A is rotatably connected to the base 12 through a third pin 163, and the fourth shaft hole A is rotatably connected to the handle 11 through a fourth pin 164.

[0026] like Figure 8As shown, the base 12 includes a base plate 121 and a pair of shaft plates 122 fixed parallel to the base plate. Each pair of shaft plates 122 has a first shaft hole A 1221 and a third shaft hole B 1222. A shaft groove 1223 is formed on the shaft plate 122 located between the first shaft hole A and the third shaft hole B, for the second pin 162 to pass through. The first shaft hole A is connected to the rotating plate 17 via the first pin 161, and the third shaft hole B is rotatably connected to the limiting member 14 via the third pin 163. The base plate 121 has an oblong hole 1211 for connecting to the battery compartment, facilitating adjustment of the installation position of the quick-change limiting mechanism 1.

[0027] To ensure balance, there are two shaft plates 122, connecting plates 142, and rotating plates 17, all arranged parallel to each other, with the handle 11 located between the two rotating plates 17. On the same side of the handle, the rotating plate 17 is located between the shaft plate 122 and the handle 11, while the shaft plate 122 is located between the connecting plate 142 and the rotating plate 17.

[0028] like Figure 7 As shown, the handle 11 has an L-shaped structure, with a limiting groove 113 formed between its connecting section and operating section for the first pin 161 to pass through. When the handle is pressed down, the first pin is locked. The connecting section is provided with a second shaft hole B 112 and a fourth shaft hole B 111. The connecting section between the second shaft hole B and the fourth shaft hole B is provided with a clearance groove to avoid the third pin 163. The second shaft hole B 112 is rotatably connected to the rotating plate 17 through the second pin 162, and the fourth shaft hole B 111 is rotatably connected to the limiting member 14 through the fourth pin 164.

[0029] When the handle is pressed down, the limiting groove on the handle is tangent to the outer periphery of the first pin, limiting the first pin; and in the same longitudinal section, the center of the second pin is to the lower left of the line connecting the centers of the first and fourth pin sections, thus locking the handle.

[0030] The quick-change limit mechanism 1 is assembled as follows: First, pass the end of the first pin 161 through the first shaft hole A 1221 on the base 12 on one side and the first shaft hole B 171 on the rotating plate 17 in sequence; after passing through the limiting groove 113 of the handle 11, pass through the shaft hole on the rotating plate 17 on the other side and the shaft hole on the shaft plate 122 in sequence, and then pass the cotter pin 15 through the end through hole of the first pin 161 to complete the installation of the base 12 and the two rotating plates 17; After passing the end of the second pin 162 through the second shaft hole A 172 on one side of the rotating plate 17 and the second shaft hole B 112 on the handle 11, it is connected to the shaft hole on the other side of the rotating plate 17. Then, the cotter pin 15 is passed through the end of the second pin 162 to complete the installation of the two rotating plates 17 and the handle 11. After passing the end of the third pin 163 through the third shaft hole A145 on the bending plate 142 of the limiting member 14 on one side and the third shaft hole B1222 on the base 12, it passes through the clearance groove on the handle 11 and through the shaft hole on the shaft plate 122 and the bending plate 142 on the other side. Then, the cotter pin 15 passes through the end of the third pin 163 to complete the installation of the limiting member 14 and the base 12. The end of the fourth pin 164 is passed through the fourth shaft hole A 146 on the limiting member 14 and the fourth shaft hole B 111 on the handle 11 in sequence, and then connected to the shaft hole on the base 12 on the other side. Then, the cotter pin 15 is passed through the end through hole of the pin 16 to complete the installation of the limiting member 14 and the handle 11. Screw the bolts of the pressing member 13 into the threaded holes 147 on the limiting member 14 to complete the installation of the pressing member 13 and the limiting member 14; this completes the assembly of the quick-change limiting mechanism 1. Figure 4 As shown.

[0031] Installation of quick-change limit mechanism 1: Align the oblong holes 1211 on the base plate 121 of the quick-change limiting mechanism 1 with the threaded holes on the mounting plate 21 of the battery compartment 2, and secure them with bolts to complete the installation of the quick-change limiting mechanism 1. Figure 3 (As shown). The oblong hole 1211 on the base plate 121 can be adjusted appropriately during installation to better fit the battery 3.

[0032] The operation process of quick-change limit mechanism 1 is as follows: Raise the handle 11 of the quick-change limit mechanism 1 to the open position, such as Figure 6 As shown, the battery 3 is then placed into the door of the battery compartment 2, and then pushed in forcefully. The battery rolls inward under the action of the roller 22, and its inner end contacts the side plate 23. The U-shaped groove 31 on the battery shell corresponds to the position of the quick-change limiting mechanism 1.

[0033] When you press down on handle 11, as Figure 5 As shown, the pressing member 13 is located exactly inside the U-shaped groove 31. By pressing against the side wall and bottom of the U-shaped groove 31, it cooperates with the side plate 23 and the roller 22 to limit the left and right and vertical directions of the battery 3, respectively. At this time, the limiting member 14 is stuck on the edge of the battery 3's outer casing, restricting the battery 3 from moving in the front and back directions.

[0034] Simultaneously, when the handle 11 is pressed down to its final position, the upper limit groove 113 of the handle 11 is tangential to the outer periphery of the first pin 161, which passes through the base plate 121 and the rotating plate 17, thus locking the first pin 161. At this time, in the same longitudinal section, the center of the second pin 162 is located to the lower left of the line connecting the centers of the first pin 161 and the fourth pin 164 (e.g., Figure 5As shown in the figure, this center line is called the dead point. In this state, no matter how much external force or reaction the battery applies to the quick-change limit mechanism 1 in the horizontal or upward direction, the handle will not be released, that is, the quick-change limit mechanism is locked.

[0035] In other words, the quick-change limiting mechanism 1 in this application can restrict the freedom of the battery 3 in the X, Y, and Z axes, so that the battery is completely restricted. Even when driving on bumpy roads, the battery 3 will not slip due to shaking and other dangers. In specific operation, a clamping component, such as a limiting pin, can also be set on the battery compartment to tighten the handle 11 and prevent it from loosening and lifting.

[0036] When replacing battery 3, simply lift the operating section of handle 11 upwards. The bottom end of its connecting section moves downwards and inwards, while the top end moves downwards and outwards. This drives the second pin 162 to rotate the rotating plate 17 around the first pin 161. At the same time, the fourth pin 164 rotates the limiting member 14 around the third pin 163, causing the front end of the limiting member 14 to flip upwards by 90 degrees and separate from the battery casing. That is, the pressing member 13 and the limiting member 14 flip upwards and detach from the battery, allowing the battery to be pulled out from the side door for quick replacement.

[0037] Therefore, the quick-change limit mechanism of this application only requires operating the operating section of the handle to achieve the operation of limiting or releasing the battery, thereby greatly improving the efficiency of battery replacement.

[0038] Example 2: A forklift includes a battery compartment 2 mounted on a frame. A quick-change limiting mechanism 1, as described in Embodiment 1, is fixed to the upper end of one side wall of the battery compartment to limit the movement of a battery 3 placed inside the compartment. The specific operation is the same as in Embodiment 1.

[0039] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

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