Limiting mechanism for battery drying trolley in vacuum oven

Abstract

A limiting mechanism for a battery drying trolley in a vacuum oven comprises a limiting pull rod, a first fixing structure, a second fixing structure and a central limiting mechanism installed between the first fixing structure and the second fixing structure, and the first fixing structure, the second fixing structure and the central limiting mechanism are connected into a whole. The middle limiting mechanism comprises a pin positioning seat with a longitudinal hole, an elastic piece, a positioning pin, a pressing transverse plate located above the pin positioning seat and two non-return check rings, the elastic piece and the positioning pin are located in the longitudinal hole, one end of the elastic piece abuts against the bottom of the longitudinal hole, and the other end of the elastic piece abuts against the lower end of the positioning pin; the upper end of the positioning pin extends out of the longitudinal hole and abuts against the downward-pressing transverse plate, and the two check rings are arranged on the two sides of the downward-pressing transverse plate respectively. The utility model has the advantages that the structure is more ingenious, the operation is simpler, the phenomenon that the trolley runs out of the furnace chamber and falls out of the storage location can be effectively prevented, and the safety coefficient is higher.

Description

Technical Field

[0001] The utility model relates to the field of battery drying trolley devices, in particular to a limiting mechanism for a battery drying trolley inside a vacuum oven. Background Art

[0002] Existing battery drying carts are generally simply placed inside the oven box. There are generally two ways for the battery drying cart to conduct electricity inside the oven box: the first is that the bottom probe inside the oven box is lifted by a lifting mechanism to lift the probe plate to contact the probe at the bottom of the cart, so as to conduct electricity to the battery drying cart; the second is that the probe plate is placed at the back of the box, and the stacker sends the battery drying cart into the box, and the probe on the back of the battery drying cart contacts the probe plate on the back of the box, thereby achieving conductivity.

[0003] However, the above two conductive methods have the following defects in actual use: The first method: If the oven tilts forward, or the ground sinks after long-term use, after the trolley is sent in by the stacker, the battery drying trolley will run out of the oven and fall out of the storage position due to its low outside and high inside, and under the influence of gravity, a safety accident may occur; The second method: When the stacker pushes the battery drying trolley into the oven, the back probe is compressed by the stacker, and there is an outward pushing force (reverse force). When the stacker withdraws from the oven cavity, the battery drying trolley will run to the outside of the oven and fall out of the storage position due to the pushing force (reverse force), and a safety accident may occur.

[0004] After searching the Chinese patent literature database, no solutions similar to the technical solution of the utility model have been found so far. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a limiting mechanism for a battery drying trolley inside a vacuum oven, which has a more ingenious structure, is simpler to operate, can effectively prevent the trolley from running out of the furnace cavity and falling out of the storage position, and has a higher safety factor.

[0006] The technical solution of the utility model is to provide a limiting mechanism for a battery drying trolley inside a vacuum oven, comprising a limiting pull rod, a first fixed structure installed on the limiting pull rod, a second fixed structure, and a central limiting mechanism installed between the first fixed structure and the second fixed structure, the first fixed structure, the second fixed structure and the central limiting mechanism are connected as a whole, the intermediate limiting mechanism comprises a pin positioning seat with a longitudinal hole, an elastic member, a positioning pin, a downward pressing cross plate above the pin positioning seat, and two check rings, the elastic member and the positioning pin are located in the longitudinal hole, one end of the elastic member abuts against the bottom of the longitudinal hole, and the other end abuts against the lower end of the positioning pin, the upper end of the positioning pin extends out of the longitudinal hole and abuts against the downward pressing cross plate, and the two check rings are respectively arranged on both sides of the downward pressing cross plate.

[0007] As an improvement of the utility model, it further comprises a bushing, which is arranged at the middle and upper part of the positioning pin.

[0008] As an improvement of the utility model, it also includes a sliding sleeve pressing plate, and the sliding sleeve pressing plate is installed on the top of the pin positioning seat.

[0009] As an improvement of the present utility model, the elastic member is a spring.

[0010] As an improvement of the utility model, it also includes a switch control structure, which includes two brackets, two slot-type switches respectively fixed on the two brackets and two detection plates, the two slot-type switches are staggered, the two detection plates are respectively fixed on the two check rings, the two brackets are fixed on the limit pull rod, and the two slot-type switches are respectively arranged corresponding to the two detection plates.

[0011] As an improvement of the present utility model, the first fixed structure includes a first roller seat and at least two first rollers, at least two of the first rollers are mounted on the first roller seat, and the wheel surface of the first roller is tangent to a side of the downward pressure plate close to the first roller.

[0012] As an improvement of the present invention, each of the first rollers includes a first wheel axle and a first wheel body, and the first wheel body is mounted on the first roller seat via the first wheel axle.

[0013] As an improvement of the present invention, the second fixed structure includes a second roller seat and at least two second rollers, at least two of the second rollers are mounted on the second roller seat, and the wheel surface of the second roller is tangent to a side of the downward pressure plate close to the second roller.

[0014] As an improvement of the present invention, each of the second rollers includes a second wheel axle and a second wheel body, and the second wheel body is mounted on the second roller seat via the second wheel axle.

[0015] The utility model adopts a limiting pull rod, a first fixing structure and a second fixing structure installed on the limiting pull rod, and a central limiting mechanism installed between the first fixing structure and the second fixing structure, wherein the first fixing structure, the second fixing structure and the central limiting mechanism are connected as a whole, and the intermediate limiting mechanism comprises a pin positioning seat with a longitudinal hole, an elastic member, a positioning pin, a downward pressing horizontal plate located above the pin positioning seat, and two non-return retaining rings, wherein the elastic member and the positioning pin are located in the longitudinal hole, one end of the elastic member abuts against the bottom of the longitudinal hole, and the other end abuts against the lower end of the positioning pin, the upper end of the positioning pin extends out of the longitudinal hole and abuts against the downward pressing horizontal plate, and the two non-return retaining rings are respectively arranged on both sides of the downward pressing horizontal plate; when the utility model is in use, the two ends of the limiting pull rod are installed on the inner guide rail of the battery drying trolley, and when the trolley is in the furnace cavity, in a normal state, the elastic member is in a state of being ejected, and the positioning pin is raised under the action of the elastic member, and the positioning pin is The downward pressing cross plate is pushed upward and raised, so that the downward pressing cross plate can block the blocking block at the front end of the battery drying trolley, thereby preventing the trolley from sliding out of the furnace cavity; and when the battery drying trolley needs to be put into the furnace cavity or taken out from the furnace cavity (that is, it is necessary to unlock and limit the trolley), the guide wheel at the front end of the stacker is pushed forward, and the thrust of the guide wheel contacts the inclined surface of the non-return retaining ring, decomposing a downward pressure, and the non-return retaining ring moves downward, thereby driving the downward pressing cross plate to move downward, the elastic member is compressed, and the end surface of the top of the downward pressing cross plate is lower than the bottom surface of the trolley blocking block, so that the trolley can be unlocked and restricted, that is, the trolley can be put into the furnace cavity or taken out of the furnace cavity; in this embodiment, during the entire limiting and unlocking process, no manual operation is required, and the trolley can be automatically limited and unlocked, the operation is simple, and the structure is ingenious. The utility model can effectively prevent the trolley from running out of the furnace cavity and falling out of the storage position, greatly reducing the accident rate and making it safer to use. Therefore, the utility model has the advantages of more ingenious structure, simpler operation, the ability to effectively prevent the trolley from running out of the furnace cavity and falling out of the storage position, and a higher safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a three-dimensional exploded structure of an implementation method of the utility model.

[0017] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure after partial assembly.

[0018] Figure 3 yes Figure 1Schematic diagram of the three-dimensional structure after partial assembly.

[0019] Figure 4 yes Figure 1 Schematic diagram of the fully assembled three-dimensional structure.

[0020] Figure 5 yes Figure 4 A three-dimensional structural schematic diagram of the usage state. DETAILED DESCRIPTION

[0021] See also Figures 1 to 5 , 1 to Figure 5Disclosed is an embodiment of a limiting mechanism for a battery drying trolley inside a vacuum oven, a limiting mechanism for a battery drying trolley inside a vacuum oven, comprising a limiting pull rod 8, a first fixing structure 1 installed on the limiting pull rod 8, a second fixing structure 2, and a central limiting mechanism 3 installed between the first fixing structure 1 and the second fixing structure 2, the first fixing structure 1, the second fixing structure 2 and the central limiting mechanism 3 are connected as a whole, specifically, they are detachably connected as a whole, the intermediate limiting mechanism 3 comprises a pin positioning seat 31 with a longitudinal hole 310, an elastic member 32, a positioning pin 33, a downward pressing horizontal plate 35 located above the pin positioning seat 31, and two check rings 36, the elastic member 32 and the positioning pin 33 are located in the longitudinal hole 310, one end of the elastic member 32 is aligned with the bottom of the longitudinal hole 310 The upper end of the positioning pin 33 extends out of the longitudinal hole 310 and abuts against the downward pressing cross plate 35. The two check rings 36 are respectively arranged on both sides of the downward pressing cross plate 35. In the utility model, in actual use, the two ends of the limit pull rod 8 are installed on the inner guide rail 91 of the battery drying trolley 9. When the battery drying trolley 9 is in the furnace cavity (not visible in the figure), in the normal state, the elastic member 32 is in the state of being ejected. The positioning pin 33 is pushed up under the action of the elastic member 32, and the positioning pin 33 pushes the downward pressing cross plate 35 upward and pushes the downward pressing cross plate 35 up, and the battery drying A blocking block 92 is provided at the front end of the trolley 9, so that the downward pressing cross plate 35 can block the blocking block 92 at the front end of the battery drying trolley 9, thereby limiting the battery drying trolley 9 and preventing the battery drying trolley 9 from sliding out of the furnace cavity; and when the battery drying trolley 9 needs to be put into the furnace cavity or taken out from the furnace cavity (that is, when the trolley needs to be unlocked to limit the trolley), the front end guide wheel of the stacker (not visible in the figure) is pushed forward, and the thrust of the guide wheel contacts the inclined surface of the non-return ring 36, decomposing a downward pressure, and the non-return ring 36 moves downward, thereby driving the downward pressing cross plate 35 fixedly connected to the non-return ring 36 to move downward, and the downward pressing cross plate 35 presses the positioning pin 33 downward. The positioning pin 33 moves downward, and the positioning pin 33 presses down the elastic member 32, and the elastic member 32 is compressed, so that the end surface of the top of the downward pressing horizontal plate 35 is lower than the bottom surface of the trolley blocking block 92, so that the battery drying trolley 9 can be unlocked and restricted, and the battery drying trolley 9 can be put into the furnace cavity or taken out of the furnace cavity; in this embodiment, during the entire restriction and unlocking process, no manual operation is required, and the battery drying trolley 9 can be automatically limited and unlocked, the operation is simple, and the structure of the utility model is ingenious. The utility model can effectively prevent the battery drying trolley 9 from running out of the furnace cavity and falling out of the storage position, which greatly reduces the accident rate and is safer to use.

[0022] In the present invention, preferably, a bushing 34 is further included, and the bushing 34 is arranged in the middle and upper part of the positioning pin 33. In the present invention, the bushing 34 can guide the positioning pin 33 and protect the positioning pin 33.

[0023] In the present invention, preferably, a sliding sleeve pressure plate 37 is further included, and the sliding sleeve pressure plate 37 is installed on the top of the pin positioning seat 31 . The sliding sleeve pressure plate 37 can guide the positioning pin 33 and prevent dust from entering the longitudinal hole 310 .

[0024] In the present invention, preferably, the elastic member 32 is a spring, and is a compression spring. Of course, it can also be other elastic members that can play the same effect as a compression spring.

[0025] In the present invention, preferably, it also includes a switch control structure 4, which includes two brackets 41, two slot switches 42 respectively fixed on the two brackets 41, and two detection pieces 43, the two slot switches 42 are staggered, the two detection pieces 43 are respectively fixed on the two check rings 36, the two brackets 41 are fixed on the limit pull rod 8, and the two slot switches 42 are respectively arranged corresponding to the two detection pieces 43. In the present invention, the staggered arrangement of the two slot switches 42 means that the two slot switches 42 are not arranged on the same horizontal plane, that is, they are arranged in high and low positions, one side is high and the other side is relatively low, so that when the high-position detection piece 43 detects a signal, it means that the downward pressing cross plate 35 is at the top, and the trolley is limited at this time, and when the low-position detection piece 43 detects a signal, it means that the downward pressing cross plate 35 is pressed down and lowered, and the trolley is unlocked and no longer limited.

[0026] In the utility model, preferably, the first fixed structure 1 includes a first roller seat 11 and at least two first rollers 12, at least two of the first rollers 12 are installed on the first roller seat 11, and the wheel surface 121 of the first roller 12 is tangent to the side of the downward pressure cross plate 35 close to the first roller 12. Specifically, in the present embodiment, there are 4 first rollers 12 (of course, more or less can be set according to needs). In the present embodiment, preferably, each of the first rollers 12 includes a first wheel axle 122 and a first wheel body 123, and the first wheel body 123 is installed on the first roller seat 11 through the first wheel axle 122.

[0027] In the present invention, preferably, the second fixed structure 2 includes a second roller seat 21 and at least two second rollers 22, at least two of the second rollers 22 are mounted on the second roller seat 21, and the wheel surface 221 of the second roller 22 is tangent to a side of the downward pressing horizontal plate 35 close to the second roller 22. Specifically, in this embodiment, there are 4 first rollers 12 (of course, more or less can also be set according to needs). In the present invention, preferably, each of the second rollers 22 includes a second wheel axle 222 and a second wheel body 223, and the second wheel body 223 is mounted on the second roller seat 21 through the second wheel axle 222. In the present invention, the main functions of the first fixed structure 1 and the second fixed structure 2 are: first, to prevent the downward pressing horizontal plate 35 from shaking forward and backward when the stacker guide wheel pushes, and to limit the downward pressing horizontal plate 35; second, because the central limiting mechanism 3 has only one middle positioning pin 33, if no fixed structure is set to be stuck in the front and back, the downward pressing horizontal plate 35 is not restricted and can be rotated arbitrarily, which makes it impossible to use normally.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A limiting mechanism for a battery drying trolley inside a vacuum oven, characterized in that: The invention comprises a limit rod (8), a first fixing structure (1) installed on the limit rod (8), a second fixing structure (2), and a central limit mechanism (3) installed between the first fixing structure (1) and the second fixing structure (2), wherein the first fixing structure (1), the second fixing structure (2) and the central limit mechanism (3) are connected as a whole, and the central limit mechanism (3) comprises a pin positioning seat (31) having a longitudinal hole (310), an elastic member (32), a positioning pin (33), and a central limit mechanism (34) located at the pin positioning seat. A downward pressing transverse plate (35) and two non-return retaining rings (36) are provided above the seat (31); the elastic member (32) and the positioning pin (33) are located in the longitudinal hole (310); one end of the elastic member (32) abuts against the bottom of the longitudinal hole (310), and the other end abuts against the lower end of the positioning pin (33); the upper end of the positioning pin (33) extends out of the longitudinal hole (310) and abuts against the downward pressing transverse plate (35); and the two non-return retaining rings (36) are respectively arranged on both sides of the downward pressing transverse plate (35).

2. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 1 is characterized in that: It also includes a bushing (34), which is arranged at the upper middle part of the positioning pin (33).

3. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 2 is characterized in that: It also includes a sliding sleeve pressing plate (37), wherein the sliding sleeve pressing plate (37) is mounted on the top of the pin positioning seat (31).

4. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 3 is characterized in that: The elastic member (32) is a spring.

5. The limiting mechanism for the battery drying trolley inside the vacuum oven according to any one of claims 1 to 4, characterized in that: The invention also comprises a switch control structure (4), wherein the switch control structure (4) comprises two brackets (41), two slot switches (42) respectively fixed to the two brackets (41), and two detection sheets (43), wherein the two slot switches (42) are arranged in a staggered manner, the two detection sheets (43) are respectively fixed to the two non-return retaining rings (36), the two brackets (41) are fixed to the limit pull rod (8), and the two slot switches (42) are respectively arranged corresponding to the two detection sheets (43).

6. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 4, characterized in that: The first fixed structure (1) comprises a first roller seat (11) and at least two first rollers (12), wherein the at least two first rollers (12) are mounted on the first roller seat (11), and a wheel surface (121) of the first roller (12) is tangent to a surface of the downward pressing horizontal plate (35) close to the first roller (12).

7. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 6, characterized in that: Each of the first rollers (12) comprises a first wheel axle (122) and a first wheel body (123); the first wheel body (123) is mounted on the first roller seat (11) via the first wheel axle (122).

8. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 4, characterized in that: The second fixed structure (2) comprises a second roller seat (21) and at least two second rollers (22), wherein the at least two second rollers (22) are mounted on the second roller seat (21), and a wheel surface (221) of the second roller (22) is tangent to a surface of the downward pressing horizontal plate (35) close to the second roller (22).

9. The limiting mechanism for the battery drying trolley inside the vacuum oven according to claim 8, characterized in that: Each of the second rollers (22) comprises a second wheel axle (222) and a second wheel body (223); the second wheel body (223) is mounted on the second roller seat (21) via the second wheel axle (222).

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