Protective device

Abstract

The invention discloses a protection device, relates to the technical field of material transportation, and is used for solving the problem that materials have an accidental falling risk when being transported by a crown block. The protection device comprises a connecting assembly, a driving assembly and a first protection piece. The driving assembly is arranged on the connecting assembly. The first protection piece and the connecting assembly are rotationally connected around a first axis. The two ends of the first protection piece are located outside the first axis, and one end is slidably connected with the driving assembly in the first direction. The output end of the driving assembly is used for reciprocating in the second direction. The second direction and the first direction are in the same plane, and the second direction intersects with the first direction. The first axis is perpendicular to the second direction and the first direction. The protection device is used for preventing materials from falling.

Description

Technical Field

[0001] The present application relates to the technical field of material transportation, and in particular to a protective device. Background Art

[0002] The overhead crane system is a commonly used material handling system. In a factory, workers use the overhead crane system to transport materials so that materials can be transferred between different equipment.

[0003] The overhead crane system usually has a track, a grabbing mechanism and an overhead crane. Among them, the grabbing mechanism is usually set on the overhead crane. When the overhead crane system transports materials, the grabbing mechanism first lifts the materials, and then the overhead crane moves along the track, thereby driving the materials to move. After the overhead crane moves to the predetermined position, the grabbing mechanism puts down the materials, thereby transporting the materials to different equipment.

[0004] When the overhead crane system is transporting materials, there is a risk of the materials accidentally falling. For example, during the wafer production process, when the overhead crane system is used to transport wafers, the wafers are held in the air by the gripping mechanism. When the overhead crane shakes while moving along the track, the wafers may detach from the gripping mechanism, posing a risk of accidental falling. Summary of the invention

[0005] The present application provides a protective device for solving the problem of the risk of accidental falling of materials when the overhead crane is transporting materials.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The embodiment of the present application provides a protective device, including a connecting assembly, a driving assembly and a first protective member. The driving assembly is arranged on the connecting assembly. The first protective member is rotatably connected to the connecting assembly around a first axis. Both ends of the first protective member are located outside the first axis, and one end is slidably connected to the driving assembly along a first direction. The output end of the driving assembly is used for reciprocating motion along a second direction. The second direction is in the same plane as the first direction, and the second direction intersects with the first direction. The first axis is perpendicular to the second direction and the first direction.

[0008] The protective device provided in the embodiment of the present application can have a connecting assembly connected to the overhead traveling crane. The connecting assembly can fix the protective device as a whole on the overhead traveling crane, and the protective device can move together with the overhead traveling crane.

[0009] Since the first guard is connected to the connecting assembly for rotation around the first axis, both ends of the first guard are located outside the first axis, and both ends of the first guard can rotate around the first axis. Since one end of the first guard is connected to the driving assembly for sliding along the first direction, the output end of the driving assembly is used for reciprocating motion along the second direction, when one end of the first guard moves along the first direction and the second direction at the same time, the motion trajectory of one end of the first guard can be a circumferential motion around the first axis. When one end of the first guard connected to the driving assembly rotates around the first axis, the other end of the first guard can be driven to rotate around the first axis.

[0010] When the wafer box is grabbed and lifted by the overhead crane, a part of the first protective member can be rotated to the bottom of the wafer box under the drive of the driving assembly. When the wafer box falls from the overhead crane, the first protective member can support the wafer box to prevent the wafer box from falling directly. When the overhead crane needs to grab or put down the wafer box, the first protective member can be driven by the driving assembly to rotate to a position that does not affect the lifting of the wafer box. In this way, the first protective member will not affect the normal grabbing or putting down of the wafer box by the overhead crane.

[0011] In some embodiments, the driving assembly includes an electric push rod and a connecting plate. The electric push rod is disposed on the connecting assembly, and the output end of the electric push rod is used to reciprocate along the second direction. The connecting plate is connected to the output end of the electric push rod, and is used to reciprocate along the second direction driven by the output end of the electric push rod. One end of the first protective member is slidably connected to the connecting plate along the first direction.

[0012] In some embodiments, a connection hole is formed on the connection plate, and one end of the first protective member is inserted into the connection hole and is slidably connected to the connection hole along a first direction.

[0013] In some embodiments, a rotation hole is formed on the first protective member. The connecting assembly includes a mounting plate and a first rotation shaft. The electric push rod is arranged on the mounting plate. One end of the first rotation shaft is connected to the mounting plate, and the first rotation shaft extends along the direction of the first axis. The rotation hole is sleeved on the outer side of the first rotation shaft and is rotationally connected to the first rotation shaft.

[0014] In some embodiments, the protective device further comprises a second protective member and a third protective member. The second protective member is rotatably connected to the mounting plate, and the rotation axis of the second protective member is parallel to the first axis. Along the second direction, the second protective member is spaced apart from the first protective member. Along the second direction, one end of the third protective member is rotatably connected to the first protective member, and the other end is rotatably connected to the second protective member.

[0015] In some embodiments, the protection device further includes a fourth protection member located on one side of the third protection member along the first direction and connected to the third protection member.

[0016] In some embodiments, along the first axis, the electric push rod is arranged on one side of the mounting plate, and the first protective member is located on the other side of the mounting plate. The mounting plate is provided with an avoidance hole, and one end of the first protective member is passed through the avoidance hole and is slidably connected with the connecting plate along the first direction.

[0017] In some embodiments, the fourth protective member is a rolling wheel; the rotation axis of the rolling wheel is parallel to the first axis, and the rotation axis of the rolling wheel is located outside the central axis of the rolling wheel.

[0018] In some embodiments, a guide groove is formed on the outer wall of the electric push rod. The guide groove extends along the second direction. The drive assembly further comprises a guide member. A portion of the guide member is engaged in the guide groove and is slidably connected to the guide groove. The guide member is also connected to the connecting plate.

[0019] In some embodiments, the protective device further includes a controller, a detection member, a first limit sensor, and a second limit sensor. The controller is electrically connected to the electric push rod. The detection member is connected to the connecting plate. The first limit sensor is arranged on the mounting plate, on the side of the mounting plate close to the electric push rod. The second limit sensor is arranged on the mounting plate, on the side of the mounting plate close to the electric push rod, and is spaced apart from the first limit sensor along the second direction. The first limit sensor and the second limit sensor are both electrically connected to the controller. The first limit sensor and the second limit sensor are used to send a signal to the controller when the detection member is detected, so that the controller controls the output end of the electric push rod to stop moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 One of the structural schematic diagrams of the protection device provided in the embodiment of the present application;

[0021] Figure 2 One of the reference diagrams of the use state of the protective device provided in the embodiment of the present application;

[0022] Figure 3 One of the partial structural schematic diagrams of the protection device provided in the embodiment of the present application;

[0023] Figure 4 A second schematic diagram of a partial structure of the protective device provided in an embodiment of the present application;

[0024] Figure 5 The second structural diagram of the protection device provided in the embodiment of the present application;

[0025] Figure 6 The third structural diagram of the protection device provided in the embodiment of the present application;

[0026] Figure 7 A cross-sectional view of the connection between the third protective member and the first protective member provided in an embodiment of the present application;

[0027] Figure 8 Reference Figure 2 of the usage status of the protective device provided in the embodiment of the present application.

[0028] Reference numerals:

[0029] 100-protection device; 200-wafer box; 1-connection assembly; 101-mounting plate; 1011-mounting horizontal plate; 1012-mounting vertical plate; 102-first rotating shaft; 103-avoidance hole; 2-driving assembly; 201-electric push rod; 202-connecting plate; 203-guide groove; 204-guide member; 2041-guide block; 2042-guide plate; 205-connection hole; 3-first protective member; 301-rotation hole; 302-rotation block; 303-rotation rod; 3031 -rotating socket; 304-transmission member; 3041-transmission part; 3042-sliding roller; 305-second bearing; 4-detection member; 401-first detection member; 402-second detection member; 5-first limit sensor; 6-second limit sensor; 7-second protective member; 8-third protective member; 801-support rod; 802-rotating connecting rod; 9-fourth protective member; 901-rolling wheel; 9011-roller body; 9012-fixing bolt; 9013-connecting through hole; 10-positioning column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing a pipeline, the "connected" and "connection" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0034] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0035] The overhead crane system usually has a track, a grabbing mechanism and an overhead crane. The grabbing mechanism is usually set on the overhead crane. When the overhead crane system transports materials, the grabbing mechanism first lifts the materials, and then the overhead crane moves along the track, thereby driving the materials to move. After the overhead crane moves to the predetermined position, the grabbing mechanism puts the materials down, thereby transporting the materials to different equipment.

[0036] When the overhead crane system is transporting materials, the materials are in the air at a certain height from the ground. When there are foreign objects on the track, the overhead crane will shake when passing over the foreign objects. This will cause the grabbing mechanism connected to the overhead crane to shake, and during the shaking of the grabbing mechanism, the materials are easy to fall off the grabbing mechanism.

[0037] For example, when transporting wafers, the staff puts the wafers in a wafer box. The overall gravity of the wafer box is the weight of the wafer box itself plus the weight of the wafers inside. The wafer box is heavier overall. The gripping mechanism of the overhead crane system requires a large force to lift the wafer box. When the gripping mechanism shakes, the force required for the gripping mechanism to grip the wafer box will increase again, and the wafer box is easy to fall from the gripping mechanism.

[0038] Since the wafer box is heavy overall, when the wafer box falls from the air, it may hit the equipment and cause damage to the equipment, and may hit the staff and cause casualties.

[0039] Based on this, the embodiment of the present application provides a protection device 100, such as Figure 1 As shown, Figure 1 This is one of the structural schematic diagrams of the protective device 100 provided in an embodiment of the present application. The protective device 100 includes a connecting component 1, a driving component 2 and a first protective member 3.

[0040] The connecting assembly 1 can be connected to the overhead travelling vehicle. Thus, the connecting assembly 1 can fix the protective device 100 on the overhead travelling vehicle as a whole, and the protective device 100 can move together with the overhead travelling vehicle.

[0041] In order to fix the connection assembly 1 on the overhead travelling crane, for example, Figure 1 As shown, the connection assembly 1 may include a mounting plate 101. The mounting plate 101 may be fixed to the overhead travelling vehicle by bolts.

[0042] The driving component 2 is arranged on the connecting component 1. Figure 1 As shown, the drive assembly 2 can be arranged on the mounting plate 101 .

[0043] In order to make the mounting plate 101 better connected with the overhead travelling vehicle and the driving assembly 2. For example, Figure 1 As shown, the mounting plate 101 may include a mounting transverse plate 1011 and a mounting vertical plate 1012 that are connected to each other and vertically arranged. The mounting vertical plate 1012 is connected to the overhead traveling vehicle through bolts. The drive assembly 2 may be arranged on the mounting transverse plate 1011. Of course, the mounting plate may also have other components. For example, it may only include the mounting transverse plate 1011, and the mounting transverse plate 1011 is directly connected to the overhead traveling vehicle.

[0044] The first protection member 3 is connected to the connection assembly 1 for rotation around the first axis. Both ends of the first protection member 3 are located outside the first axis. Thus, both ends of the first protection member 3 can rotate around the first axis. For example, Figure 1 As shown, the first protective member 3 can be rotatably connected to the mounting transverse plate 1011 , and the first axis is perpendicular to the mounting transverse plate 1011 .

[0045] One end of the first protection member 3 is slidably connected to the driving assembly 2 along the first direction X. The output end of the driving assembly 2 is used for reciprocating along the second direction Y. The second direction Y is in the same plane as the first direction X, and the second direction Y intersects the first direction X. The first axis is perpendicular to the first direction X and the second direction Y.

[0046] Thus, since the second direction Y is in the same plane as the first direction X and is perpendicular to the first axis, when one end of the first protection member 3 moves along the first direction X and the second direction Y simultaneously, one end of the first protection member 3 can move circumferentially around the first axis.

[0047] Since both ends of the first guard member 3 are located outside the first axis, when one end of the first guard member 3 connected to the driving assembly 2 rotates around the first axis, the other end of the first guard member 3 can be driven to rotate around the first axis.

[0048] It is understandable that the angle between the first direction X and the second direction Y can be selected according to actual conditions. For example, the first direction X and the second direction Y can be perpendicular, or the first direction X and the second direction Y can be 120°, as long as one end of the first protective member 3 moves along the first direction X and the second direction Y at the same time, its motion trajectory can move circumferentially around the first axis.

[0049] When the wafer box is grabbed and lifted by the overhead crane, a part of the first protection member 3 can be rotated to the bottom of the wafer box under the drive assembly 2. When the wafer box falls from the overhead crane, the first protection member 3 can support the wafer box to prevent the wafer box from falling directly.

[0050] When the overhead crane needs to grab or put down the wafer box, the first protection member 3 can be driven by the driving assembly 2 to rotate to a position that does not affect the lifting of the wafer box. In this way, the first protection member 3 will not affect the normal grabbing or putting down of the wafer box by the overhead crane.

[0051] For example, in actual use, the two protective devices 100 mentioned above may be installed on the overhead travelling crane. Figure 2 As shown, Figure 2 Referring to one of the use state diagrams of the protection device 100 provided in the embodiment of the present application, along the first direction X, two protection devices 100 are disposed opposite to each other on two sides of the wafer box 200 .

[0052] During the operation of the overhead crane, the driving assembly 2 can drive the first protective member 3 to rotate, so that a part of the first protective members 3 of the two protective devices 100 moves to the side of the wafer box 200 close to the ground. In this way, the two first protective members 3 can be located at both ends of the bottom of the wafer box 200, and support the wafer box 200 from both ends of the bottom of the wafer box 200, thereby ensuring the stability of the first protective members 3 supporting the wafer box 200.

[0053] In some embodiments, Figure 1 As shown, the driving assembly 2 may include an electric push rod 201 and a connecting plate 202. The electric push rod 201 is disposed on the connecting assembly 1, and the output end of the electric push rod 201 is used for reciprocating motion along the second direction Y. For example, Figure 1 As shown, the electric push rod 201 can be set on the mounting cross plate 1011.

[0054] As known, the electric push rod 201 generally includes a housing and a motor (not shown in the figure) and a transmission mechanism such as a screw (not shown in the figure) disposed in the housing (not shown in the figure). The housing can prevent dust in the external environment from affecting the normal operation of the motor and the transmission mechanism such as the screw of the electric push rod 201. In this way, the use of the electric push rod 201 for driving can reduce the influence of dust in the external environment and ensure the normal operation of the drive assembly 2.

[0055] Continue to refer to Figure 1 The connecting plate 202 is connected to the output end of the electric push rod 201, and is used to reciprocate along the second direction Y driven by the output end of the electric push rod 201. For example, Figure 1 As shown, the connecting plate 202 is located on a side of the mounting transverse plate 1011 close to the electric push rod 201, and the connecting plate 202 is parallel to the mounting transverse plate 1011. One end of the first protective member 3 is slidably connected to the connecting plate 202 along the first direction X.

[0056] Since the first guard 3 is connected to the electric push rod 201 via the connecting plate 202 , it is convenient for the staff to set a connecting structure on the connecting plate 202 , thereby facilitating the sliding connection between the first guard 3 and the driving assembly 2 along the first direction X.

[0057] In order to realize the sliding connection between the first protection member 3 and the connecting plate 202 along the first direction X, in some embodiments, as Figure 1 As shown, a connection hole 205 is formed on the connection plate 202. One end of the first protection member 3 is inserted into the connection hole 205 and is slidably connected to the connection hole 205 along the first direction X.

[0058] In this way, the first protection member 3 can slide in the connecting hole 205 along the first direction X, and the connecting plate 202 can drive the first protection member 3 to rotate around the first axis.

[0059] It is understandable that the first protection member 3 can also be connected to the connecting plate 202 in other ways. For example, a transmission hole (not shown) can be opened at one end of the first protection member 3, and the extension direction of the transmission hole is parallel to the first direction X.

[0060] A connecting protrusion (not shown in the figure) is formed on the connecting plate 202, and the connecting protrusion is inserted into the transmission hole. In this way, the connecting plate 202 and the first protective member 3 can also be slidably connected along the first direction X.

[0061] In order to play a guiding role, in some embodiments, such as Figure 1 As shown, a guide groove 203 is formed on the outer wall of the electric push rod 201 , and the guide groove 203 extends along the second direction Y.

[0062] Meanwhile, the driving assembly 2 may further include a guide member 204. The guide member 204 is connected to the connecting plate 202. A portion of the guide member 204 is engaged in the guide groove 203 and is slidably connected to the guide groove 203.

[0063] In this way, the guide member 204 can guide the movement direction of the connecting plate 202, so that the connecting plate 202 can stably move along the second direction Y, thereby preventing the connecting plate 202 from shaking. At the same time, the connecting plate 202 will not transmit radial force to the output end of the electric push rod 201, and the output end of the electric push rod 201 is not easily damaged.

[0064] For example, Figure 1 As shown, the guide member 204 may include a guide block 2041 and a guide plate 2042. The guide block 2041 is clamped in the guide groove 203 and is slidably connected to the guide groove 203. One end of the guide plate 2042 is connected to the guide block 2041, and the other end is connected to the output end of the electric push rod 201.

[0065] The connecting plate 202 is connected to the guide plate 2042 and is located on a side of the guide plate 2042 away from the output end of the electric push rod 201 .

[0066] In this way, the electric push rod 201 pushes the guide plate 2042 to move, thereby driving the connecting plate 202 to move. The guide block 2041 can ensure that the guide plate 2042 moves along the second direction Y, and prevent the guide plate 2042 from shaking.

[0067] In order to realize the rotational connection between the first protection member 3 and the connection assembly 1, in some embodiments, as Figure 3 As shown, Figure 3 This is one of the partial structural schematic diagrams of the protection device 100 provided in the embodiment of the present application. A rotation hole 301 is formed on the first protection member 3.

[0068] like Figure 4 As shown, Figure 4 The second partial structural diagram of the protection device 100 provided in the embodiment of the present application, the connection assembly 1 may further include a first rotating shaft 102. The first rotating shaft 102 extends along the first axis.

[0069] One end of the first rotating shaft 102 is connected to the mounting plate 101. For example, Figure 4 As shown, the first rotating shaft 102 can be connected to the mounting horizontal plate 1011 .

[0070] like Figure 3 As shown, the rotation hole 301 is sleeved on the outer side of the first rotation shaft 102 and is rotatably connected to the first rotation shaft 102. In this way, the first protection member 3 can be connected to the mounting horizontal plate 1011 ( Figure 4 ) is connected for rotation about a first axis.

[0071] In order to improve the stability of the rotation of the first protection member 3, in some embodiments, the protection device 100 may further include two first bearings (not shown in the figure). The two first bearings are arranged in the rotation hole 301. Along the first axis, the two first bearings are arranged side by side.

[0072] The first rotating shaft 102 is inserted into the two first bearings. In this way, the two first bearings can improve the stability of the rotation of the first protection member 3 and prevent the first protection member 3 from shaking during the rotation process.

[0073] It is understandable that the first protection member 3 may be connected to the connection assembly 1 in other ways. Exemplarily, a rotation recess may be formed on the mounting plate 101 (not shown in the figure).

[0074] The first protection member 3 may be formed with a rotation protrusion (not shown in the figure), which is inserted into the rotation recess and rotationally connected with the rotation recess. In this way, the first protection member 3 can also be rotationally connected with the connecting assembly 1 around the first axis.

[0075] In order to avoid the first protection member 3 from interfering with the electric push rod 201 during the rotation process, in some embodiments, such as Figure 1 As shown, along the first axis, the electric push rod 201 is arranged on one side of the mounting plate 101 , and the first protective member 3 is located on the other side of the mounting plate 101 .

[0076] For example, Figure 1 As shown, the electric push rod 201 can be arranged on one side of the mounting cross plate 1011, and the first protection member 3 is located on the side of the mounting cross plate 1011 away from the electric push rod 201. In this way, the first protection member 3 will not interfere with the electric push rod 201 during the rotation process.

[0077] Along the first axis, a portion of the projection of the first guard member 3 on the mounting horizontal plate 1011 can overlap a portion of the projection of the electric push rod 201 on the mounting horizontal plate 1011. In this way, the space area occupied by the guard device 100 as a whole in the horizontal plane can be reduced, and the structure of the guard device 100 as a whole is compact.

[0078] In order to ensure that one end of the first protective member 3 can be connected to the connecting plate 202, in some embodiments, such as Figure 4 As shown, the mounting plate 101 is provided with an escape hole 103. One end of the first protective member 3 is inserted into the escape hole 103 and connected to the connecting plate 202 ( Figure 1 ) along the first direction X( Figure 1 )Slide connection.

[0079] In this way, the avoidance hole 103 can prevent the mounting plate 101 from affecting the connection between the connecting plate 202 and the first protective member 3 , and the connecting plate 202 can normally drive the first protective member 3 to rotate.

[0080] For example, Figure 4As shown, the avoidance hole 103 can be arc-shaped, and the avoidance hole 103 is arranged around the first axis. In this way, the portion of the first protective member 3 that passes through the avoidance hole 103 can rotate normally, and the avoidance hole 103 will not hinder the first protective member 3 from rotating around the first axis. At the same time, the setting of the arc-shaped hole can reduce the size of the avoidance hole 103, thereby reducing the opening area on the mounting plate 101, and the mounting plate 101 has sufficient strength.

[0081] In order to facilitate the first protective member 3 to pass through the avoidance hole 103 and connect with the connecting plate 202, in some embodiments, such as Figure 3 As shown, the first protection member 3 may include a rotating block 302 , a rotating rod 303 and a transmission member 304 .

[0082] A rotating hole 301 is formed on the surface of one side of the rotating block 302. The rotating rod 303 is connected to the rotating block 302. The transmission member 304 is inserted into the avoidance hole 103, one end of which is connected to the rotating block 302, and the other end is inserted into the connecting hole 205 ( Figure 1 )Inside.

[0083] It can be understood that the other end of the transmission member 304 is connected to the connecting hole 205 ( Figure 1 ) along the first direction X( Figure 1 ) sliding connection. And the transmission member 304 is inserted into the connection hole 205 ( Figure 1 ) is located outside the first axis.

[0084] Thus, the connecting plate 202 ( Figure 1 ) can drive one end of the transmission member 304 to move along the first direction X and the second direction Y ( Figure 1 ) movement, thereby driving the rotating block 302 to rotate around the first axis.

[0085] In order to reduce the friction between the transmission member 304 and the connection hole 205, in some embodiments, such as Figure 4 As shown, the transmission member 304 may include a transmission part 3041 and a sliding roller 3042. The transmission part 3041 is arranged in the avoidance hole 103, one end of which is connected to the rotating block 302, and the other end of which extends to the installation horizontal plate 1011 close to the connecting plate 202 ( Figure 1 ) on one side.

[0086] The sliding roller 3042 is located on one side of the mounting plate 101 close to the connecting plate 202 and is rotatably connected to the other end of the transmission part 3041. The sliding roller 3042 is inserted into the connecting hole 205 ( Figure 1 ), along the first direction X( Figure 1 ) is slidably connected to the connecting hole 205. The rotation axis of the sliding roller 3042 is parallel to the first axis.

[0087] When the sliding roller 3042 slides in the connection hole 205 along the first direction X, the sliding roller 3042 can rotate, thereby converting the sliding friction between the sliding roller 3042 and the connection hole 205 into rolling friction. In this way, the resistance encountered by the sliding roller 3042 when moving in the connection hole 205 can be reduced, thereby ensuring that the sliding roller 3042 can move smoothly in the connection hole 205.

[0088] In order to facilitate the control of the movement distance of the output end of the electric push rod 201, in some embodiments, such as Figure 1 As shown, the protection device 100 may further include a controller (not shown in the figure), a detection member 4 , a first limit sensor 5 and a second limit sensor 6 .

[0089] The controller is electrically connected to the electric push rod 201. The controller can send a signal to the electric push rod 201, thereby controlling the output end of the electric push rod 201 to extend and retract, and controlling the output end of the electric push rod 201 to stop moving.

[0090] The detection member 4 is connected to the connecting plate 202. When the connecting plate 202 moves along the second direction Y, it can drive the detection member 4 to move together.

[0091] The first limit sensor 5 is disposed on the mounting plate 101, and is located on a side of the mounting plate 101 close to the electric push rod 201. The second limit sensor 6 is disposed on the mounting plate 101, and is located on a side of the mounting plate 101 close to the electric push rod 201. Along the second direction Y, the second limit sensor 6 and the first limit sensor 5 are spaced apart.

[0092] like Figure 1 As shown, the first limit sensor 5 and the second limit sensor 6 are both arranged on the mounting horizontal plate 1011, and are located on a side of the mounting horizontal plate 1011 close to the electric push rod 201. In this way, the first limit sensor 5 and the second limit sensor 6 can detect the detection member 4 arranged on the connecting plate 202.

[0093] The first limit sensor 5 and the second limit sensor 6 are both electrically connected to the controller. The first limit sensor 5 and the second limit sensor 6 are used to send a signal to the controller when detecting the detection member 4, so that the controller controls the output end of the electric push rod 201 to stop moving.

[0094] Thus, when the detection member 4 moves with the connecting plate 202 to the position corresponding to the first limit sensor 5 or the second limit sensor 6, the output end of the electric push rod 201 stops moving. The corresponding first protection member 3 also stops rotating, and the position of the first protection member 3 can be stabilized.

[0095] According to the above content, the staff adjusts the positions of the first limit sensor 5 and the second limit sensor 6, thereby adjusting the position of the first protective member 3 when the output end of the electric push rod 201 stops moving. In this way, when the output end of the electric push rod 201 stops moving, the first protective member 3 can be rotated to a part located at the wafer box 200 ( Figure 2 ) to a side close to the ground, or rotated to a position that does not affect the lifting and lowering of the wafer box 200.

[0096] For example, Figure 5 As shown, Figure 5 The second structural diagram of the protective device 100 provided in the embodiment of the present application, when the first limit sensor 5 detects the detection member 4, the first limit sensor 5 sends a signal to the controller (not shown in the figure), and the controller controls the output end of the electric push rod 201 to stop moving.

[0097] At this time, the first protective member 3 stops rotating, and a portion of the first protective member 3 is located at the wafer box 200 ( Figure 2 ) On the side close to the ground, the first protective member 3 can protect the wafer box 200 to prevent the wafer box 200 from falling.

[0098] like Figure 6 As shown, Figure 6 The third structural diagram of the protective device 100 provided in the embodiment of the present application, when the second limit sensor 6 detects the detection member 4, the second limit sensor 6 sends a signal to the controller (not shown in the figure), and the controller controls the output end of the electric push rod 201 to stop moving. At this time, the first protective member 3 rotates to the direction of gravity and the wafer box 200 ( Figure 2 ) at the staggered position, the overhead crane can normally grab or put down the wafer box 200, and the first protective member 3 will not affect the lifting and lowering of the wafer box 200.

[0099] In order to prevent the first limit sensor 5 from failing and causing the first protection member 3 to be unable to stop after rotating to the bottom of the wafer box 200, in some embodiments, such as Figure 1 As shown, the protection device 100 may further include a positioning column 10 .

[0100] The positioning column 10 is connected to the mounting plate 101 , and is used to be located on the side of the first protective member 3 away from the electric push rod 201 along the second direction Y when the first limit sensor 5 detects the detection member 4 , and abuts against the first protective member 3 to limit the rotation of the first protective member 3 .

[0101] In this way, even if the first limit sensor 5 fails, the first protective member 3 cannot continue to rotate after abutting against the positioning column 10 , and the first protective member 3 can also be maintained at a position capable of supporting the wafer box 200 .

[0102] In order to improve the stability of the protection device 100 in supporting the wafer box 200, in some embodiments, as Figure 1 As shown, the protection device 100 may further include a second protection member 7 and a third protection member 8 .

[0103] The second protection member 7 is rotatably connected to the mounting plate 101, and the rotation axis of the second protection member 7 is parallel to the first axis. Along the second direction Y, the second protection member 7 and the first protection member 3 are spaced apart.

[0104] For example, Figure 1 As shown, the second protective member 7 is rotatably connected to the mounting transverse plate 1011 , and along the second direction Y, the second protective member 7 and the first protective member 3 are respectively located at two ends of the mounting transverse plate 1011 .

[0105] It is understandable that there are many ways to achieve the rotational connection between the second protection member 7 and the mounting plate 101. Exemplarily, the second protection member 7 can be rotationally connected to the mounting plate 101 in the same way as the first protection member 3 is connected to the mounting plate 101.

[0106] Alternatively, a rotation connection hole (not shown in the figure) may be formed on the mounting plate 101, and one end of the second protective member 7 may be directly rotationally connected in the rotation connection hole.

[0107] like Figure 1 As shown, along the second direction Y, one end of the third protective member 8 is rotatably connected to the first protective member 3 , and the other end is rotatably connected to the second protective member 7 .

[0108] In this way, the rotation of the first protection member 3 can drive the third protection member 8 to move, and the movement of the third protection member 8 can drive the movement of the second protection member 7. Driven by the third protection member 8, the second protection member 7 rotates synchronously with the first protection member 3.

[0109] When the first protection member 3 rotates to a position where a portion of the first protection member 3 is located in the wafer box 200 ( Figure 2 ) is close to the ground, the third protection member 8 can be driven by the first protection member 3 to move to the position of the wafer box 200 on the side close to the ground. At this time, the third protection member 8 can support the wafer box 200 and protect the wafer box 200 to prevent the wafer box 200 from falling.

[0110] The first protective member 3, the second protective member 7 and the third protective member 8 can form a connecting rod structure, and the first protective member 3 and the second protective member 7 can provide support force for the third protective member 8 from both ends of the third protective member 8. In this way, the third protective member 8 is not easily deformed when supporting the wafer box 200, and the third protective member 8 can provide a stable support force for the wafer box 200.

[0111] In order to realize the rotation connection between the third protection member 8 and the first protection member 3, in some embodiments, as Figure 3 As shown, a rotation socket 3031 may be provided at one end of the rotation rod 303 away from the rotation block 302. The first protection member 3 may further include a second bearing 305.

[0112] There are two second bearings 305 . The two second bearings 305 are inserted into the rotating socket 3031 , and are arranged side by side along a direction parallel to the first axis.

[0113] like Figure 7 As shown, Figure 7 The third protective member 8 is a cross-sectional view of the connection between the third protective member 8 and the first protective member 3 provided in the embodiment of the present application. The third protective member 8 may include a support rod 801 and a rotating connecting rod 802. One end of the rotating connecting rod 802 is connected to the support rod 801, and the other end is inserted into the two second bearings 305.

[0114] In this way, when the rotating link 802 rotates in the rotating socket 3031, the two second bearings 305 can limit the rotating link 802 to ensure that the rotating link 802 can rotate smoothly, thereby preventing the support rod 801 connected to the rotating link 802 from shaking. The support rod 801 can stably support the wafer box 200 ( Figure 2 ).

[0115] It is understandable that the second protective member 7 and the third protective member 8 can be rotatably connected in the same manner. In this way, both ends of the third protective member 8 will not shake, the stability of the third protective member 8 can be ensured, and the third protective member 8 can stably support the wafer box 200.

[0116] Of course, the second protective member 7 may also be rotatably connected to the third protective member 8 in other ways, and it is only necessary to ensure the matching accuracy of the connection between the second protective member 7 and the third protective member 8.

[0117] In order to prevent the wafer box 200 from sliding off the third protection member 8, in some embodiments, as shown in FIG. Figure 1 As shown, the protection device 100 may further include a fourth protection member 9. Along the first direction X, the fourth protection member 9 is located at one side of the third protection member 8 and is connected to the third protection member 8.

[0118] When the wafer box 200 ( Figure 2 ) falls on the third protective member 8, the fourth protective member 9 can abut against the side of the wafer box 200. In this way, the fourth protective member 9 can limit the position of the wafer box 200 to prevent the wafer box 200 from falling from the third protective member 8.

[0119] For example, in actual use, the two protective devices 100 mentioned above may be installed on the overhead travelling crane. Figure 8 As shown, Figure 8Referring to FIG. 2 , the protective device 100 provided in the embodiment of the present application is shown in use. Along the first direction X, two protective devices 100 are disposed opposite to each other on two sides of the wafer box 200 .

[0120] The third protection member 8 is located on a side of the wafer box 200 close to the ground. The third protection member 8 can support the wafer box 200 to prevent the wafer box 200 from falling to the ground.

[0121] The fourth protection member 9 ( Figure 4 ) abuts against two sides of the wafer box 200 along the first direction X, and the fourth protection member 9 can prevent the wafer box 200 from falling from the third protection member 8 along the first direction X.

[0122] In some embodiments, Figure 4 As shown, the fourth protection member 9 may be a rolling wheel 901. The rotation axis of the rolling wheel 901 is parallel to the first axis, and the rotation axis of the rolling wheel 901 is located outside the central axis of the rolling wheel 901.

[0123] In this way, the staff can rotate the scroll wheel 901, and after the scroll wheel 901 rotates, it moves along the first direction X( Figure 1 ), the rolling wheel 901 and the wafer box 200 ( Figure 2 In this way, the staff can rotate the rolling wheel 901 according to actual use requirements, thereby ensuring that the rolling wheel 901 can stably abut against the side of the wafer box 200.

[0124] For example, Figure 4 As shown, the rolling wheel 901 may include a rolling wheel body 9011 and a fixing bolt 9012. The central axis of the rolling wheel body 9011 is parallel to the first axis. A connecting through hole 9013 is provided on the rolling wheel body 9011, and the central axis of the connecting through hole 9013 is parallel to the first axis and is spaced apart from the central axis of the rolling wheel body 9011.

[0125] One end of the fixing bolt 9012 passes through the connection through hole 9013 and is threadedly connected to the third protection member 8. In this way, the staff can fix the roller body 9011 on the third protection member 8 after fixing the bolt 9012, thereby limiting the rotation of the third protection member 8. After the staff loosens the fixing bolt 9012, the fixing bolt 9012 no longer fixes the third protection member 8, and the staff can rotate the roller body 9011 as needed, so that the roller body 9011 can be against the wafer box 200 ( Figure 2 ) side.

[0126] The roller body 9011 may be made of a flexible material. In this way, when the roller body 9011 abuts against the side of the wafer box 200, the wafer box 200 will not be deformed. At the same time, after the roller body 9011 is deformed, the contact area with the wafer box 200 can be increased, and the friction between the roller body 9011 and the wafer box 200 is increased, so that the wafer box 200 is not easy to fall off the third protective member 8.

[0127] In some embodiments, Figure 4 As shown, the number of the fourth protective members 9 may be two, and the two fourth protective members 9 are arranged at intervals along the second direction Y. The two fourth protective members 9 abut against the wafer box 200 ( Figure 2 ), the rotation of the wafer box 200 can also be restricted. In this way, the wafer box 200 can be prevented from rotating when the fourth protection member 9 contacts the wafer box 200, thereby preventing the wafer box 200 from falling off the third protection member 8.

[0128] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A protective device, It is characterized in that include: Connect components; A driving component, disposed on the connecting component; as well as, A first protective member, wherein the first protective member is rotatably connected to the connecting assembly around a first axis; both ends of the first protective member are located outside the first axis, and one end is slidably connected to the driving assembly along a first direction; Wherein, the output end of the driving component is used for reciprocating motion along a second direction; the second direction and the first direction are in the same plane, and the second direction intersects with the first direction; the first axis is perpendicular to the second direction and the first direction.

2. The protective device according to claim 1, It is characterized in that The drive assembly comprises: an electric push rod, disposed on the connecting assembly, wherein an output end of the electric push rod is used for reciprocating motion along the second direction; and A connecting plate is connected to the output end of the electric push rod and is used for reciprocating along the second direction driven by the output end of the electric push rod; one end of the first protective member is slidably connected to the connecting plate along the first direction.

3. The protective device according to claim 2, It is characterized in that A connecting hole is formed on the connecting plate, and one end of the first protective member is inserted into the connecting hole and is slidably connected with the connecting hole along the first direction.

4. The protective device according to claim 2, It is characterized in that The first protective member is formed with a rotation hole, and the connecting assembly comprises: A mounting plate, on which the electric push rod is disposed; and A first rotating shaft, one end of which is connected to the mounting plate, and the first rotating shaft extends along the direction of the first axis; Wherein, the rotating hole is sleeved on the outer side of the first rotating shaft and is rotatably connected to the first rotating shaft.

5. The protective device according to claim 4, It is characterized in that The protective device also includes: A second protective member is rotatably connected to the mounting plate, wherein the rotation axis of the second protective member is parallel to the first axis; along the second direction, the second protective member is spaced apart from the first protective member; and, The third protection member has one end rotatably connected to the first protection member along the second direction, and the other end rotatably connected to the second protection member.

6. The protective device according to claim 5, It is characterized in that The protective device also includes: The fourth protection member is located on one side of the third protection member along the first direction and is connected to the third protection member.

7. The protective device according to claim 4, It is characterized in that Along the first axis, the electric push rod is arranged on one side of the mounting plate, and the first protective member is located on the other side of the mounting plate; an avoidance hole is opened on the mounting plate, and one end of the first protective member is passed through the avoidance hole and is slidably connected with the connecting plate along the first direction.

8. The protective device according to claim 6, It is characterized in that The fourth protective member is a rolling wheel; the rotation axis of the rolling wheel is parallel to the first axis, and the rotation axis of the rolling wheel is located outside the central axis of the rolling wheel.

9. The protective device according to claim 2, It is characterized in that The outer wall of the electric push rod is provided with a guide groove; the guide groove extends along the second direction; the driving assembly further comprises: A guide member, a part of which is clamped in the guide groove and is slidably connected to the guide groove; the guide member is also connected to the connecting plate.

10. The protective device according to claim 4, It is characterized in that The protective device also includes: A controller, electrically connected to the electric push rod; A detection member connected to the connection plate; A first limit sensor is disposed on the mounting plate and is located on a side of the mounting plate close to the electric push rod; and A second limit sensor is arranged on the mounting plate, located on a side of the mounting plate close to the electric push rod, and spaced apart from the first limit sensor along the second direction; Wherein, the first limit sensor and the second limit sensor are both electrically connected to the controller; the first limit sensor and the second limit sensor are used to send signals to the controller when detecting the detection member, so that the controller controls the output end of the electric push rod to stop moving.

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