A locking mechanism, a locking mechanism assembly method and a battery base

Abstract

The disclosed embodiments provide a locking mechanism, an assembly method of the locking mechanism, and a battery base. The locking mechanism includes: a guide body, a locking assembly, and a telescopic component. The guide body has a cavity and a locking port. The locking assembly includes a seat body and a swinging member. The seat body is located outside the guide body. One end of the swinging member is hinged to the seat body. The other end of the swinging member is located in the cavity and is provided with a locking tongue. The telescopic component is connected to the guide body. The telescopic component and the swinging member cooperate in transmission to drive the swinging member to rotate so that the locking tongue extends out of the guide body from the locking port, or retracts from the locking port to the cavity. The locking mechanism of the present application drives the swinging member to swing through the telescopic component, and locks or unlocks the battery frame through the locking tongue on the swinging member. The structure is simple, and the production cost and maintenance cost are reduced. In the locking mechanism of the present application, the locking assembly is at least partially located in the cavity of the guide body. The structure is compact, light in weight, and small in space.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to a locking mechanism, an assembly method of the locking mechanism, and a battery base. Background Art

[0002] Currently, in the field of electric heavy trucks, a technology for quickly replacing battery boxes is provided to achieve rapid energy replenishment. Specifically, a battery tray is provided on the electric heavy truck, and a locking mechanism is provided on the battery tray, which can lock or unlock the battery box. When the current battery box is low on power, the locking mechanism can unlock the battery box, making it convenient to transfer the low-power battery box with the help of professional lifting equipment. The lifting equipment then grabs the fully charged battery box and loads it on the battery tray. The locking mechanism on the battery tray can lock the battery box again. By providing a battery tray on an electric heavy truck, not only can the cost of battery replacement and maintenance be reduced, but also the waiting time for charging can be reduced.

[0003] In the related art, the battery base includes a base frame and a locking mechanism disposed on the base frame. The locking mechanism generally includes a guide body, a latch and a cylinder. A through groove is disposed on the guide body. The latch can be slidably disposed in the through groove. The cylinder is disposed outside the guide body. The cylinder and the latch cooperate in transmission to drive the latch to slide along the through groove to extend or retract into the through groove to perform locking or unlocking tasks. This latch-type locking method has a small locking force, and its cylinder generally needs to be hinged at both ends to the base frame and the latch, respectively. The overall assembly structure is complex and occupies a large space. Summary of the invention

[0004] In order to solve one of the above technical problems, the present invention provides a locking mechanism, an assembly method of the locking mechanism and a battery base.

[0005] The present invention adopts the following technical solutions:

[0006] The first object of the present disclosure is to provide a locking mechanism, comprising:

[0007] A guide body, the guide body having a cavity and a locking opening, the locking opening being connected to the cavity;

[0008] A locking assembly, the locking assembly comprising a seat body and a swinging member, the seat body being located outside the guide body, the swinging member being at least partially located in the cavity, one end of the swinging member extending out of the cavity and being hinged to the seat body, and the other end of the swinging member being located in the cavity and provided with a locking tongue;

[0009] A telescopic component is connected to the guide body, and the telescopic component and the swing member are in transmission cooperation to drive the swing member to rotate, so that the locking tongue extends out of the guide body from the locking mouth, or retracts from the locking mouth to the cavity.

[0010] Optionally, the locking mechanism comprises a transmission member, the transmission member is at least partially located in the cavity, the telescopic member is mounted on the outer wall of the guide body, one end of the transmission member is hinged to the swing member, and the other end of the transmission member is connected to the telescopic member;

[0011] The telescopic movement of the telescopic component drives the swinging member to rotate through the transmission member.

[0012] Optionally, the swinging member has a main body, the main body is located in the cavity and extends along the guide body, one end of the main body is hinged to the seat body, the other end of the main body is provided with the locking tongue, and an angle is formed between the locking tongue and the main body;

[0013] A curved transition section is provided between the locking tongue and the main body, and the transmission member is movably connected to the curved transition section.

[0014] Optionally, the transmission member includes two arms and a connecting portion connecting the two arms;

[0015] The swinging member is located between the two supporting arms;

[0016] The rotating shaft is arranged through the swinging member, and the rotating shaft is respectively connected to the two supporting arms;

[0017] The telescopic component is connected to the connecting portion.

[0018] Optionally, an operating port communicating with the cavity is provided on the guide body;

[0019] An extension line of the rotating shaft passes through the operating port.

[0020] Optionally, the locking mechanism includes a cover plate, which is detachably connected to the guide body and is used to close or open the operating port.

[0021] Optionally, a limiting body is provided on the cover plate;

[0022] When the cover plate is connected to the guide body, the limiting body is located in the cavity;

[0023] When the telescopic component drives the swinging member to rotate so that the locking tongue extends out of the locking opening to the limit position, the rotating shaft stops at the limiting body.

[0024] Optionally, the limiting body includes an end limiting body and side limiting bodies arranged on both sides of the end limiting body;

[0025] The side limiting body extends along the movable direction of the locking tongue;

[0026] When the telescopic component drives the swinging member to rotate so that the locking tongue extends out of the locking opening to the limit position, the rotating shaft stops at the end limit body, and the rotating shaft is located between the two side limit bodies.

[0027] Optionally, the locking tongue is in an arc shape with a middle portion convex toward a side away from the seat body.

[0028] Optionally, the telescopic component is a cylinder, and the cylinder comprises:

[0029] A cylinder body, the cylinder body having a cavity and a telescopic opening communicating with the cavity, the cylinder body being connected to the guide body, and the cylinder body being used to connect to an air source device;

[0030] a piston slidably disposed in the cavity;

[0031] A piston rod, the piston rod is arranged to pass through the telescopic opening, the piston rod is connected to the piston, and the piston rod is in transmission connection with the swinging member;

[0032] An elastic component, wherein the elastic component is disposed in the cavity, and two ends of the elastic component elastically abut against the piston and the inner wall of the cylinder respectively;

[0033] When the cylinder is in a state of being de-energized, the elastic component abuts against the piston, and the piston rod abuts against the swinging member, so that the locking tongue remains extended out of the locking opening.

[0034] Optionally, the piston rod end has a ball groove, the swing member is connected to a transmission member, the transmission member has a ball head, and the ball head can be movably accommodated in the ball groove.

[0035] Optionally, a guide portion is provided on the side of the guide body facing away from the base support frame, and the guide portion has at least two guide slopes, each of which is arranged in sequence along the circumference of the guide portion, and the cross-sectional diameter of the guide portion gradually decreases in the direction from the base support frame to the guide portion.

[0036] The second object of the present disclosure is to provide an assembly method of the above locking mechanism, comprising:

[0037] Step S1, adjusting the telescopic component to a cut-off state, so that under the action of the elastic component inside the telescopic component, the telescopic component is in an extended state, and the lock tongue extends out of the locking opening;

[0038] Step S2, passing the rotating shaft through the swing member and the transmission member on the locking mechanism at the operation port, and connecting the transmission member and the swing member;

[0039] Step S3, adjusting the telescopic component to be in a ventilation state, and retracting the telescopic component;

[0040] Step S4: install the cover plate on the guide body so that the rotating shaft is located between the two side limit bodies.

[0041] The third object of the present disclosure is to provide a battery base, comprising:

[0042] Bottom support frame;

[0043] The locking mechanism mentioned above has a seat body fixed on the bottom supporting frame, and the guide body fixed on the bottom supporting frame.

[0044] By adopting the above technical solution, the present application has the following beneficial effects:

[0045] The locking mechanism of the present application drives the swinging member to swing through the telescopic member, and locks or unlocks the battery frame through the lock tongue on the swinging member, which has a simple structure and reduces production and maintenance costs. The locking assembly in the locking mechanism of the present application is at least partially located in the cavity of the guide body, which has a compact structure, is light in weight and occupies little space.

[0046] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0048] Figure 1 A schematic diagram of the appearance structure of the locking mechanism provided in an embodiment of the present application;

[0049] Figure 2 A schematic diagram of the internal structure of the locking mechanism provided in an embodiment of the present application;

[0050] Figure 3 A schematic diagram of the structure of a cover plate of a locking mechanism provided in an embodiment of the present application;

[0051] Figure 4 A state diagram of the guide body of the locking mechanism provided in the embodiment of the present application after the cover plate is hidden;

[0052] Figure 5 A schematic diagram of the structure of the battery base provided in an embodiment of the present application;

[0053] Figure 6 Another perspective view of the battery base provided in the embodiment of the present application;

[0054] Figure 7A schematic diagram showing the appearance structure of a telescopic component provided in an embodiment of the present disclosure is shown;

[0055] Figure 8 A cross-sectional view of a telescopic component provided by an embodiment of the present disclosure is shown.

[0056] In the figure: 1, bottom support frame; 2, guide body; 21, guide body; 22, shell; 221, guide slope; 222, avoidance notch; 23, locking port; 24, operation port; 3, locking assembly; 31, seat body; 32, swinging member; 321, main body; 322, locking tongue; 4, telescopic member; 411, cylinder; 412, front cover; 413, rear cover; 4131, limit block; 42, piston; 43, piston rod; 431 , ball groove; 44, elastic component; 45, sealing ring; 46, guide sleeve; 47, dust cover; 48, magnetic ring; 49, piston ring; 410, wear-resistant belt; 5, transmission part; 51, connecting part; 511, ball head; 52, support arm; 6, rotating shaft; 7, cover plate; 71, limit body; 711, end limit body; 712, side limit body; 8, mounting seat; 81, first connecting plate; 82, second connecting plate; 10, upper frame clamping part.

[0057] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] See also Figures 1 to 8 As shown, the embodiment of the present disclosure provides a locking mechanism, including: a guide body 2, a telescopic component 4 and a locking assembly 3. The guide body 2 has a cavity and a locking opening 23, the locking opening 23 is connected to the cavity, the locking assembly 3 includes a seat body 31 and a swinging member 32, the seat body 31 is located outside the guide body 2, the swinging member 32 is at least partially located in the cavity, one end of the swinging member 32 extends out of the cavity and is hinged to the seat body 31, the other end of the swinging member 32 is located in the cavity and is provided with a locking tongue 322, the telescopic component 4 is connected to the guide body 2, the telescopic component 4 and the swinging member 32 are transmission-coordinated to drive the swinging member 32 to rotate, so that the locking tongue 322 extends out of the guide body 2 from the locking opening 23, or retracts from the locking opening 23 to the cavity.

[0062] The locking mechanism of the present application drives the swing member 32 to swing through the telescopic part 4, and locks or unlocks the battery frame through the lock tongue 322 on the swing member 32. The locking mechanism of the present application has a simple structure, which reduces production costs and maintenance costs. The telescopic part 4 is not used to lock the battery frame directly, but is swung with the help of the swing member 32, and the battery box is locked by the lock tongue 322 on the swing member 32, thereby avoiding damage to the telescopic part 4. When the swing member 32 is deformed or damaged during long-term operation, the swing member 32 can be replaced, thereby reducing repair and maintenance costs. In the locking mechanism of the present application, the locking assembly 3 is at least partially located in the cavity of the guide body 2, and the structure is compact, light in weight and occupies little space.

[0063] In some possible implementations, such as Figure 2 As shown, the locking mechanism includes a transmission member 5, which is at least partially located in the cavity. The telescopic member 4 is installed on the outer wall of the guide body 2. One end of the transmission member 5 is hinged to the swing member 32, and the other end of the transmission member 5 is connected to the telescopic member 4. The telescopic movement of the telescopic member 4 drives the swing member 32 to rotate through the transmission member 5.

[0064] The transmission member 5 and the swing member 32 together form a two-link mechanism. The telescopic component 4 drives the transmission member 5 to telescopically move, which can drive the swing member 32 to swing. During the swinging process of the swing member 32, its lock tongue 322 can extend or retract the lock mouth 23 to perform locking or unlocking actions.

[0065] In some possible implementation schemes, the swing member 32 has a main body 321, the main body 321 is located in the cavity, and extends along the guide body 2, does not occupy external space, one end of the main body 321 is hinged to the seat body 31, and the other end of the main body 321 is provided with the locking tongue 322, there is an angle between the locking tongue 322 and the main body 321, and the main body 321 and the locking tongue 322 are roughly "7" shaped. There is a curved transition section between the locking tongue 322 and the main body 321, and the transmission member 5 can be movably connected to the curved transition section. The swing member 32 is an integral part, the bottom is hinged to the seat body 31, and is effectively supported by the seat body 31, and the top side is connected to the transmission member 5. The position of the swing member 32 connected to the transmission member 5 is the end of the locking tongue 322, which is equivalent to directly acting on the locking tongue 322, so the locking force of the locking tongue 322 is relatively large.

[0066] In some possible implementations, such as Figure 2 As shown, the transmission member 5 includes two arms 52 and a connecting portion 51 connecting the two arms 52 , the swing member 32 is located between the two arms 52 , the rotating shaft 6 passes through the swing member 32 , and the rotating shaft 6 is respectively connected to the two arms 52 , and the telescopic member 4 is connected to the connecting portion 51 .

[0067] In this embodiment, the transmission member 5 is roughly a U-shaped structure, and two limit members can be set on the rotating shaft 6. The two limit members are located on both sides of the transmission member 5 to limit the transmission member 5 from moving along the length direction of the rotating shaft 6, ensuring that when the swing member 32 swings, the lock tongue 322 can accurately and smoothly extend out of the locking mouth 23 without being blocked by the inner wall of the guide body 2.

[0068] In some possible implementations, such as Figure 4 As shown, an operation port 24 is provided on the guide body 2, and the extension line of the rotating shaft 6 passes through the operation port 24. The operation port 24 is opposite to the rotating shaft 6, that is, the setting of the operation port 24 facilitates the assembly of the locking mechanism. The rotating shaft 6 can be installed in the guide body 2 through the operation port 24. For example, in the process of assembling the locking mechanism, the swing member 32 is first installed in the guide body 2, and then the telescopic component 4 and the transmission member 5 are assembled, and the telescopic component 4 is fixed on the guide body 2. At this time, the transmission member 5 and the swing member 32 are both located in the cavity, and the positions of the transmission member 5 and the swing member 32 are adjusted so that the connection holes on the swing member 32 and the connection holes on the transmission member 5 are aligned. Then, the rotating shaft 6 passes through the connection holes on the swing member 32 and the transmission member 5. The rotating shaft 6 is located on both sides of the transmission member 5 and the limiting holes are provided. The limiting member can be installed in the limiting holes. The limiting member can extend perpendicular to the rotating shaft 6 and protrude from the rotating shaft 6.

[0069] In some possible embodiments, combined with Figure 1 , Figure 2 , Figure 3and Figure 4 As shown, the locking mechanism includes a cover plate 7 , which is detachably connected to the guide body 2 , and is used to close or open the operation port 24 .

[0070] After the rotating shaft 6 is installed, the cover plate 7 is put on to close the operating port 24, thereby improving safety and preventing the rotating shaft 6 from reciprocating during the telescopic movement of the telescopic component 4 and thereby preventing the operator from being injured.

[0071] A plurality of connection holes may be provided at the edge of the cover plate 7 , and one end of a plurality of fasteners passes through the connection holes and is connected to the guide body 2 , while the other end of the fasteners is limited on the cover plate 7 .

[0072] It should be noted that a locking hole 23 is provided on one side of the shell wall of the guide body 2, and a mounting seat 8 is provided on the shell wall of the guide body 2 opposite to the locking hole 23, and the telescopic component 4 is mounted on the mounting seat 8. The mounting seat 8 may include a first connecting plate 81 and a second connecting plate 82, the first connecting plate 81 and the second connecting plate 82 are connected by a connecting plate, and there is an angle between the first connecting plate 81 and the second connecting plate 82, the first connecting plate 81 is fitted and connected to the shell wall of the guide body 2, the telescopic component 4 may be a cylinder, and the second connecting plate 82 may be connected to the front cover 412 of the cylinder. The first connecting plate 81 is roughly perpendicular to the bottom support frame 1, and the second connecting plate 82 has a smaller angle with the first connecting plate 81. For example, there can be an angle of 10° to 40° between the first connecting plate 81 and the second connecting plate 82, so that one end of the piston rod 43 of the cylinder is higher than one end of the rear cover 413 of the cylinder, the piston rod is tilted upward, the piston rod 43 is connected to the transmission member 5, and the direction of extension and retraction of the piston rod 43 is roughly the tangent direction of the rotation trajectory of the top end of the swing member 32, which is conducive to easily and smoothly pushing the swing member 32 to rotate.

[0073] In some possible implementation schemes, a limit body 71 is provided on the cover plate 7. When the cover plate 7 is connected to the guide body, the limit body 71 is located in the cavity. When the telescopic component 4 drives the swinging member 32 to rotate so that the locking tongue 322 extends out of the locking mouth 23 to the extreme position, the rotating shaft 6 stops at the limit body 71.

[0074] The setting of the limiting body 71 has the function of limiting the extension length of the locking tongue 322, so that the extension length of the locking tongue 322 is fixed in each locking state of the locking mechanism, which is conducive to the locking mechanism to maintain stable and effective operation.

[0075] In some possible implementations, the limiting body 71 includes an end limiting body 711 and side limiting bodies 712 disposed on both sides of the end limiting body 711, and the side limiting bodies 712 extend along the movable direction of the locking tongue 322. When the telescopic component 4 drives the swinging member 32 to rotate so that the locking tongue 322 extends out of the locking opening 23 to the limit position, the rotating shaft 6 stops at the end limiting body 711, and the rotating shaft 6 is located between the two side limiting bodies 712.

[0076] The two opposite shell walls of the guide body 2 are both provided with operation ports, and the operation ports are both covered with a cover plate 7. The end limiter 711 and the two side limiters 712 of the guide body 2 can be integrally formed and welded to the cover plate 7. A limiting space is formed between the end limiter 711 and the two side limiters 712, and the rotating shaft 6 can be limited in the limiting space, which plays a guiding role in the movement of the rotating shaft 6 and limits the movement of the rotating shaft 6 within the moving range, so that the locking mechanism can work reliably and effectively. Rotating bodies can be respectively provided at both ends of the rotating shaft 6, and the rotating body and the rotating shaft 6 can be rotatably matched. The rotating body can be located in the limiting space, the rotating body can be located between the two side limiters 712, and can move along the length direction of the side limiters 712. When the swinging member 32 swings to the limit position, the rotating body stops on the end limiter 711. The rotating body can be a bearing or a roller.

[0077] In some possible implementations, such as Figure 1 As shown, the locking tongue 322 is in an arc shape with the middle portion convex toward the side away from the seat body 31. The extension trajectory of the locking tongue 322 is roughly the movement trajectory when it rotates around the seat body 31. By setting the locking tongue 322 to be a convex arc shape, it is helpful to reduce the opening area of ​​the locking opening 23, and there is no need to open a large opening on the guide body 2, so as to avoid seriously affecting the structural strength of the guide body 2.

[0078] In some possible embodiments, the guide body 2 includes a guide body 21 and a shell 22, the guide body 21 is vertically connected to the base frame 1, the guide body 21 has a cavity and a first locking port connected to the cavity, the locking assembly 3 is at least partially located in the cavity, the shell 22 is fittedly connected to the surface of the guide body 21, the shell 22 has a guide slope 221, the shell 22 has a second locking port, the second locking port is connected to the first locking port, the locking tongue 322 of the locking assembly 3 can extend from the cavity to the first locking port and the second locking port in sequence, and the locking tongue 322 of the locking assembly 3 can be retracted into the cavity.

[0079] The shell 22 can be made of high-strength wear-resistant material, for example, the shell 22 can be made of 304 steel. The shell 22 and the guide body 21 can be fixed by welding.

[0080] In some possible implementation schemes, the outer surface of the guide body 2 is provided with an upper frame clamping member 10, and the upper frame clamping member 10 can be elastically deformed under the action of external force, and when the external force is removed, the upper frame clamping member 10 can restore the deformation. The battery box generally includes a battery frame and a battery arranged in the battery frame. When the battery frame is seated on the battery base of the mining truck, the upper frame clamping member 10 can be engaged with the battery frame, which is conducive to strengthening the assembly structural strength of the battery frame and the battery base of the mining truck. When the battery frame is seated on the battery base of the mining truck, the upper frame clamping member 10 is engaged with the beam body on the battery frame. For example, the upper frame clamping member 10 elastically abuts against the beam body of the battery frame. A matching portion can be provided on the beam body, and the matching portion and the upper frame clamping member 10 are engaged, and the matching portion can be a groove or notch arranged on one side of the inner side of the beam body, and the upper frame clamping member 10 can be embedded in the matching portion.

[0081] The upper frame clamping member 10 can be an elastic metal sheet, which has a dome arc piece and a connecting piece portion located on both sides of the dome arc piece and connected to the dome arc piece, wherein the connecting piece portion is connected to the guide body 2 by bolts, and the connecting piece portion and the dome arc piece have a smooth transition, and the dome arc piece protrudes from the surface of the guide body 2. The connecting piece, the dome arc piece and another connecting piece are sequentially arranged along the height direction of the guide body 2.

[0082] In some possible implementation schemes, the upper frame clamp 10 is arranged on the outer wall of the guide body 21, and an avoidance notch 222 is provided on the side of the outer shell 22 facing away from the guide body 2. When the outer shell 22 is connected to the guide body 21, the upper frame clamp 10 is located in the avoidance notch 222.

[0083] In some possible implementations, such as Figures 7 and 8 As shown, the telescopic component 4 can be a cylinder, and the cylinder includes: a cylinder body, a piston 42, a piston rod 43 and an elastic component 44. The cylinder body has a cavity and a telescopic port connected to the cavity, and the cylinder body is connected to the guide body 2, and the cylinder body is used to connect the air source device. The piston 42 is slidably arranged in the cavity. The piston rod 43 is arranged through the telescopic port, and the piston rod 43 is connected to the piston 42. The piston rod 43 and the swinging member 32 are transmission-connected. The elastic component 44 is arranged in the cavity, and the two ends of the elastic component 44 elastically press against the inner wall of the piston 42 and the cylinder body respectively. When the cylinder body is in a state of gas cut-off, the elastic component 44 presses against the piston 42, and the piston rod 43 presses against the transmission member 5, so that the locking tongue 322 remains extended out of the locking port 23.

[0084] The cylinder body is provided with vents on both sides of the piston 42, and the two vents are connected to the air source device respectively. The piston rod 43 passes through the telescopic port, and the piston rod 43 is connected to the piston 42. The elastic component 44 is provided in the cavity, and the two ends of the elastic component 44 elastically press against the piston 42 and the inner wall of the cylinder body respectively. The piston 42 can be moved along the cylinder barrel 411 by controlling one of the two vents to intake air and the other to exhaust air.

[0085] The cylinder provided in the embodiment of the present disclosure is a double-acting cylinder, which can put the locking mechanism in a locked state when the piston rod 43 is extended. When the cylinder is accidentally de-energized, the elastic component 44 remains against the piston 42 to keep the piston rod 43 in an extended state, and the locking mechanism remains in a locked state, thereby improving safety and reliability. The piston 42 separates the cavity of the cylinder into a front cavity and a rear cavity, and the two air vents are connected to the front cavity and the rear cavity respectively. When gas is injected into the rear cavity and the front cavity is deflated, the piston rod 43 will be in an extended state. At this time, in addition to the internal gas of the cylinder providing the piston 42 with a force, the elastic component 44 also provides the piston 42 with a larger elastic force, so that the output force of the cylinder is more guaranteed under the same cylinder diameter, thereby improving safety and reliability.

[0086] In some possible implementations, the cylinder body has a cylinder barrel 411, a front cover 412 and a rear cover 413, the cylinder barrel 411 has a cavity and two openings communicating with the cavity, the front cover 412 and the rear cover 413 are both connected to the cylinder barrel 411, the front cover 412 and the rear cover 413 both cover the corresponding openings, the front cover 412 is provided with the telescopic opening, the piston 42 and the inner wall of the cylinder barrel 411 are sealed and matched, and one end of the elastic component 44 abuts against the rear cover 413. In the disclosed embodiment, the front cover 412 and the rear cover 413 are both detachably connected to the cylinder barrel 411, avoiding the difficulty of subsequent maintenance caused by the integrated stretching of the rear cover 413 and the cylinder barrel 411.

[0087] In some possible implementations, a sealing ring 45 is provided between the front cover 412 and the cylinder barrel 411, and a sealing ring 45 is provided between the rear cover 413 and the cylinder barrel 411. For example, an O-type sealing ring 45 is provided between the rear cover 413 and the cylinder barrel 411, which can seal the gap between the rear cover 413 and the cylinder barrel 411. An O-type sealing ring 45 is also provided between the front cover 412 and the cylinder barrel 411, and the O-type sealing ring 45 can seal the gap between the front cover 412 and the cylinder barrel 411. The front cover 412 and the cylinder barrel 411 are connected by fasteners. The rear cover 413 and the cylinder barrel 411 are also connected by fasteners.

[0088] In some possible implementations, a limit block 4131 is provided in the middle of the rear cover 413, the limit block 4131 is located in the cavity, and extends toward one side of the front cover 412, and when the piston rod 43 retracts to the limit position, the piston 42 abuts against the limit block 4131. The limit block 4131 may be a flexible structure or a hard structure, for example, the limit block 4131 may be a hard rubber structure with a small deformation capacity, and the limit block 4131 has a buffering effect on the piston 42, which can reduce the moving speed of the piston 42, and finally stop the piston 42 from moving, thereby preventing the piston 42 from directly contacting the rear cover 413.

[0089] In some possible implementations, an inner boss is provided in the middle of the rear cover 413, the stop block 4131 has a groove, the inner boss is inserted into the groove, and the stop block 4131 and the inner boss are fixedly connected. The rear cover 413 and the stop block 4131 are fixedly connected, and the rear cover 413 and the stop block 4131 form an integral structure. The stop block 4131 and the rear cover 413 can be connected by injection molding.

[0090] In some possible implementations, the elastic component 44 may be a spring, and the stopper 4131 is located inside the spring. The elastic component 44 will not interfere with the stopper 4131. The outer diameter of the elastic component 44 is close to the inner diameter of the cylinder 411, so that the elastic component 44 can be limited by the inner wall of the cylinder 411 without being skewed.

[0091] In some possible implementation schemes, the end of the piston rod 43 has a ball groove 431, the swing member 32 is connected to the transmission member 5, and the transmission member 5 has a ball head 511, and the ball head 511 can be movably accommodated in the ball groove 431. The ball head 511 is located at the end of the connecting portion 51 of the transmission member 5. The piston rod 43 and the transmission member 5 adopt the ball head 511 and the ball groove 431 matching structure, so that the transmission member 5 automatically adjusts the angle and position under the action of external force, thereby improving the compatibility with the corresponding structural parts of the locking mechanism.

[0092] In some possible implementations, the double-acting cylinder includes a guide sleeve 46 , which is embedded in the telescopic opening and fixed to the cylinder body, and the piston rod 43 is slidably disposed through the guide sleeve 46 .

[0093] The front cover 412 may be provided with a telescopic opening, and the guide sleeve 46 may be provided on the front cover 412. The piston rod 43 slidably penetrates the guide sleeve 46, and the guide sleeve 46 enables the piston rod 43 to move in a straight line and is not easily skewed.

[0094] In some possible implementations, the double-acting cylinder further includes a dust cover 47, which is disposed on the inner side of the guide sleeve 46, and the piston rod 43 can slide through the dust cover 47. The dust cover 47 seals the gap between the piston rod 43 and the cylinder body, so that when the double-acting cylinder works in an environment with a large amount of dust, dust can be reduced from entering, ensuring the normal use of the cylinder, extending the service life of the cylinder, and keeping the cylinder in good working condition.

[0095] In some possible implementations, the double-acting cylinder includes a magnetic ring 48, which is sleeved on the piston 42. A magnetic switch can be set on the cylinder body or other positions outside the cylinder body. When the piston 42 moves and passes close to the magnetic switch, the magnetic switch will be triggered to generate a corresponding induction signal. By setting the magnetic ring 48 on the piston 42, it can cooperate with the magnetic switch to automatically and wirelessly obtain the extension and retraction signals of the cylinder. For example, the magnetic switch is set at the extreme position of the corresponding piston 42 close to the rear cover 413. When the piston 42 of the cylinder retracts to the extreme position, the magnetic switch can be triggered to generate an in-position signal, and the injection of gas into the cylinder body can be controlled to stop.

[0096] Each structural component of the double-acting cylinder provided in the embodiment of the present disclosure can be made of high-temperature resistant and low-temperature resistant materials, so that the double-acting cylinder can be used for a long time between -35° and 120°.

[0097] In some possible embodiments, the double-acting cylinder includes a wear-resistant belt 410, which can be sleeved on the piston 42, which can effectively reduce the pressure of the cylinder 411 and the piston 42 seal and extend the life of the cylinder. The double-acting cylinder may also include a piston ring 49, which is sleeved on the piston 42 and can be used to close the gap between the piston 42 and the inner wall of the cylinder 411.

[0098] The disclosed embodiment also provides an assembly method of the locking mechanism, including:

[0099] Step S1, adjusting the telescopic component 4 to be in a cut-off state, under the action of the elastic component 44 inside the telescopic component 4, the telescopic component 4 is in an extended state, and the locking tongue 322 extends out of the locking opening 23;

[0100] Before step S1, the swinging member 32 can be installed into the guide body 2, the transmission member 5 and the piston rod 43 of the cylinder can be connected, and the cylinder can be installed on the guide body 2. The telescopic member 4 is a cylinder. When the cylinder is in a gas-free state, its internal spring elastically presses against the piston 42, so that the piston rod 43 is in an extended state. At this time, the cylinder is in a safe state, and the staff can safely assemble the relevant structure.

[0101] Step S2, passing the rotating shaft 6 through the swing member 32 and the transmission member 5 on the locking mechanism at the operation port 24, and connecting the transmission member 5 and the swing member 32;

[0102] In this step, the piston rod 43 is in an extended state, and the relative positions of the transmission member 5 and the swing member 32 are adjusted so that the connection holes of the two are opposite to each other, and then the shaft 6 is passed through the operation opening 24 through each connection hole in turn to connect the transmission member 5 and the swing member 32. In step S2, the shaft 6 is located on the edge of the operation opening 24 close to the locking opening, and the shaft 6 and the limiter 71 on the cover plate 7 may interfere with each other, and the cover plate 7 cannot be installed.

[0103] Step S3, adjusting the telescopic component 4 to be in a ventilation state, and retracting the telescopic component 4;

[0104] In this step, air is supplied to the cylinder and the piston rod 43 of the cylinder is retracted, driving the rotating shaft 6 to move synchronously. At this time, the rotating shaft 6 moves to one side of the cylinder and is no longer in the extended extreme position, which is convenient for the subsequent installation of the cover plate 7. The end limit body 711 of the limit body 71 on the cover plate 7 will not interfere with the rotating shaft 6 and will not affect the assembly of the cover plate 7.

[0105] Step S4, installing the cover plate 7 on the guide body 2 so that the rotating shaft 6 is located between the two side limit bodies 712.

[0106] See also Figure 5 and Figure 6 As shown, the disclosed embodiment also provides a battery base, including: a base frame 1 and the above-mentioned locking mechanism, wherein the base 31 of the locking mechanism is fixed on the base frame 1, and the guide body 2 is fixed on the base frame 1. Multiple locking mechanisms can be arranged on the base frame 1, and the locking components 3 of each locking mechanism can synchronously perform locking or unlocking actions.

[0107] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present application can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A locking mechanism, characterized in that: include: A guide body, the guide body having a cavity, a locking port and an operating port, the locking port and the operating port both being connected to the cavity; A locking assembly, the locking assembly comprising a seat body and a swinging member, the seat body being located outside the guide body, the swinging member being at least partially located in the cavity, one end of the swinging member extending out of the cavity and being hinged to the seat body, and the other end of the swinging member being located in the cavity and provided with a locking tongue; A telescopic component, the telescopic component is connected to the guide body; a transmission member, wherein at least a part of the transmission member is located in the cavity, one end of the transmission member is hinged to the swing member through a rotating shaft, and the other end of the transmission member is connected to the telescopic member, an extension line of the rotating shaft passes through the operating port, and the telescopic member can drive the swing member to rotate through the transmission member, so that the locking tongue extends from the locking port to the guide body, or retracts from the locking port to the cavity; A cover plate, wherein the cover plate is detachably connected to the guide body, the cover plate is used to close or open the operating port, a limit body is arranged on the cover plate, when the cover plate is connected to the guide body, the limit body is located in the cavity, and when the telescopic component drives the swinging member to rotate so that the locking tongue extends out of the locking port to the extreme position, the rotating shaft stops at the limit body.

2. The locking mechanism according to claim 1, characterized in that: The telescopic component is installed on the outer wall of the guide body.

3. The locking mechanism according to claim 2, characterized in that: The swinging member has a main body, the main body is located in the cavity and extends along the guide body, one end of the main body is hinged to the seat body, the other end of the main body is provided with the locking tongue, and an angle is formed between the locking tongue and the main body; A curved transition section is provided between the locking tongue and the main body, and the transmission member is movably connected to the curved transition section.

4. The locking mechanism according to claim 2, characterized in that: The transmission member comprises two supporting arms and a connecting portion connecting the two supporting arms; The swinging member is located between the two supporting arms; The rotating shaft is arranged through the swinging member, and the rotating shaft is respectively connected to the two supporting arms; The telescopic component is connected to the connecting portion.

5. The locking mechanism according to claim 1, characterized in that: The limiting body includes an end limiting body and a side limiting body arranged on both sides of the end limiting body, and the end limiting body is respectively connected to the two side limiting bodies; The side limiting body extends along the movable direction of the locking tongue; When the telescopic component drives the swinging member to rotate so that the locking tongue extends out of the locking opening to the limit position, the rotating shaft stops at the end limit body, and the rotating shaft is located between the two side limit bodies.

6. The locking mechanism according to claim 1, characterized in that: The locking tongue is in an arc shape with a middle portion convex toward a side away from the seat body.

7. The locking mechanism according to claim 1, characterized in that: The telescopic component is a cylinder, and the cylinder comprises: A cylinder body, the cylinder body having a cavity and a telescopic opening communicating with the cavity, the cylinder body being connected to the guide body, and the cylinder body being used to connect to an air source device; a piston slidably disposed in the cavity; A piston rod, the piston rod is arranged to pass through the telescopic opening, the piston rod is connected to the piston, and the piston rod is in transmission connection with the swinging member; An elastic component, wherein the elastic component is disposed in the cavity, and two ends of the elastic component elastically abut against the piston and the inner wall of the cylinder respectively; When the cylinder is in a state of being de-energized, the elastic component abuts against the piston, and the piston rod abuts against the swinging member, so that the locking tongue remains extended out of the locking opening.

8. The locking mechanism according to claim 7, characterized in that: The end of the piston rod is provided with a ball groove, and the transmission member movably connected to the swing member is provided with a ball head, and the ball head is movably accommodated in the ball groove.

9. The method for assembling a locking mechanism according to any one of claims 1 to 8, characterized in that: include: Step S1, adjusting the telescopic component to a cut-off state, so that under the action of the elastic component inside the telescopic component, the telescopic component is in an extended state, and the lock tongue extends out of the locking opening; Step S2, passing the rotating shaft through the swing member and the transmission member on the locking mechanism at the operation port, and connecting the transmission member and the swing member; Step S3, adjusting the telescopic component to be in a ventilation state, and retracting the telescopic component; Step S4: install the cover plate on the guide body so that the rotating shaft is located between the two side limit bodies.

10. A battery base, characterized in that: include: Bottom support frame; A plurality of locking mechanisms as described in any one of claims 1-8, wherein the base of the locking mechanism is fixed on the bottom support frame, and the guide body is fixed on the bottom support frame.

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