Transformers and engineering vehicles

Abstract

The present invention relates to the technical field of engineering vehicles, and provides a dressing device and an engineering vehicle, wherein the dressing device comprises: an attachment; a fixing assembly for placing the attachment; a locking assembly, which is arranged on the attachment and can lock the attachment to the fixing assembly; a propulsion assembly, which is arranged on the attachment and can switch between a first state and a second state, so that the locking assembly and the fixing assembly can switch between a locked state and an unlocked state; wherein, when the propulsion assembly is in the first state, the propulsion assembly pushes the locking assembly to retract, so that the locking assembly and the fixing assembly are unlocked; when the propulsion assembly is in the second state, the propulsion assembly pushes the locking assembly to extend, so that the locking assembly and the fixing assembly are locked. The attachment can be quickly unlocked when being grabbed, and can be quickly locked when being put down. At the same time, the attachment is prevented from shaking and jumping on the fixing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering vehicles, and in particular to a changing device and an engineering vehicle. Background Art

[0002] In the related art, multifunctional engineering vehicles are equipped with a variety of attachments for operation. During the process of replacing the attachments, there are problems such as failure to automatically unlock when grabbing and failure to automatically lock when putting them back. Also, after the operation is completed, the attachments will be placed on the fixed components. During the driving and transportation of the vehicle, due to the bumps and shakes, the attachments will shake violently or even pop out of the fixed components, posing a safety hazard. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art or the related art.

[0004] To this end, a first aspect of the present invention provides a changing device.

[0005] A second aspect of the present invention provides a construction vehicle.

[0006] In view of this, the present invention provides a dressing device, which includes: an attachment; a fixing component for placing the attachment; a locking component, which is arranged on the attachment and can lock the attachment to the fixing component; a propulsion component, which is arranged on the attachment and can switch between a first state and a second state, so that the locking component and the fixing component can switch between a locked state and an unlocked state; wherein, when the propulsion component is in the first state, the propulsion component pushes the locking component to retract, so that the locking component and the fixing component are unlocked; when the propulsion component is in the second state, the propulsion component pushes the locking component to extend, so that the locking component and the fixing component are locked.

[0007] The dressing device provided by the present invention includes an attachment, a fixing component, a locking component and a propulsion component. Among them, the fixing component is used to place the attachment, and the locking component is arranged on the attachment. The locking component can lock the attachment and the fixing component, that is, the attachment is connected to the fixing component through the locking component to achieve rapid fixation of the attachment, or the attachment is separated from the fixing component after the locking component is unlocked to achieve rapid grasping of the attachment, thereby achieving rapid replacement of the attachment. Further, the propulsion component is arranged on the attachment, the propulsion component has two states, and the propulsion component can be switched between the first state and the second state so that the locking component is locked with the fixing component, so that the attachment can be quickly unlocked when grasping and quickly locked when putting down. At the same time, after the fixing component locks the attachment, it can effectively prevent the attachment from shaking and jumping on the fixing component, and avoid the attachment from being violently shaken or even popped out of the fixing component during transportation, thereby improving the safety and reliability of the dressing device.

[0008] Specifically, during the process of replacing the attachment, when the propulsion component is in the first state, the propulsion component pushes the locking component to retract, so that the locking component and the fixed component are unlocked, that is, the fixed component unlocks the locking component, and the attachment is quickly grabbed. When the propulsion component is in the second state, the propulsion component pushes the locking component to extend, so that the locking component and the fixed component are locked, that is, the fixed component locks the locking component, and the attachment is quickly locked. In addition, by locking the locking component by the fixed component, the attachment can be prevented from moving up and down or left and right on the fixed component, thereby improving the reliability of the attachment fixation.

[0009] The changing device according to the above technical solution of the present invention may also have the following additional technical features:

[0010] In the above technical solution, further, the propulsion component includes: an ear plate, which is arranged on the attachment; a waist-shaped hole, which is opened on the ear plate; a first pin shaft, which is passed through the waist-shaped hole and can reciprocate in the waist-shaped hole; wherein, when the propulsion component switches from the first state to the second state, the first pin shaft moves from the first position to the second position to drive the locking component to retract and unlock with the fixing component; when the propulsion component switches from the second state to the first state, the first pin shaft moves from the second position to the first position to drive the locking component to extend and connect and lock with the fixing component.

[0011] In this technical solution, the propulsion assembly includes an ear plate, a waist-shaped hole and a first pin. The ear plate is arranged on the attachment, and a waist-shaped hole is provided on the ear plate. Furthermore, the first pin is installed on the ear plate through the waist-shaped hole, and the first pin can reciprocate in the waist-shaped hole, so that when the propulsion assembly switches from the first state to the second state, the first pin moves from the first position to the second position, that is, the first pin can move from one end of the waist-shaped hole to the other end, thereby driving the locking assembly to contract, at which time the locking assembly is separated from the fixing assembly, and the locking assembly is unlocked from the fixing assembly. When the propulsion assembly switches from the second state to the first state, the first pin moves from the second position to the first position, that is, the first pin can return from the other end of the waist-shaped hole, thereby driving the locking assembly to extend, at which time the locking assembly is engaged with the fixing assembly, and the locking assembly is connected and locked with the fixing assembly. By utilizing the reciprocating motion of the first pin shaft in the waist-shaped hole, the propulsion component can push the locking component to move relative to the fixing component, and lock or unlock the locking component and the fixing component, so that the attachment can be quickly unlocked when grasping and quickly locked when putting down, thereby improving the replacement efficiency of the attachment.

[0012] In any of the above technical schemes, further, the locking assembly includes a lock shell and a lock core, the lock shell is arranged on the attachment, the lock core is inserted in the lock shell, and the lock core can telescopically move relative to the lock shell; the pushing assembly also includes a toggle part, one end of the toggle part is connected to the first pin shaft, and the other end of the toggle part is movably connected to the lock core; when the first pin shaft is in the first position, the first pin shaft drives the lock core to be in the third position through the toggle part, and the lock core extends toward the direction close to the fixing assembly so that the locking assembly is connected and locked with the fixing assembly; when the first pin shaft is in the second position, the first pin shaft drives the lock core to be in the fourth position through the toggle part, and the lock core retracts toward the direction away from the fixing assembly so that the locking assembly is unlocked from the fixing assembly.

[0013] In this technical solution, the locking assembly includes a lock shell and a lock core. The lock shell is arranged on the attachment, and the lock core is inserted in the lock shell. The lock core can move telescopically relative to the lock shell. When the propulsion assembly switches between the first state and the second state, the lock core can move telescopically relative to the fixed assembly, thereby realizing the connection or separation between the lock core and the fixed assembly, thereby realizing the locking and unlocking of the locking assembly and the fixed assembly. Furthermore, the propulsion assembly also includes a toggle part, one end of which is connected to the first pin shaft, and the other end of which is movably connected to the lock core. The first pin shaft and the lock core are connected through the toggle part, so that when the first pin shaft reciprocates in the waist-shaped hole, the lock core is driven to extend and retract through the toggle part, thereby realizing the connection or separation between the lock core and the fixed assembly.

[0014] Specifically, when the first pin is in the first position, the first pin drives the lock core to the third position through the toggle part, and the lock core extends toward the fixed component, so that the locking component is connected and locked with the fixed component; when the first pin is in the second position, the first pin drives the lock core to the fourth position through the toggle part, and the lock core retracts away from the fixed component, so that the locking component and the fixed component are unlocked. In this way, the attachment can be quickly unlocked when it is grabbed, and can be quickly locked when it is put down, thereby improving the replacement efficiency of the attachment. In addition, after the fixed component locks the attachment, it can effectively prevent the attachment from shaking and jumping on the fixed component, and avoid the attachment from being violently shaken or even popped out of the fixed component during transportation, thereby improving the safety and reliability of the replacement device.

[0015] In any of the above technical solutions, further, the fixing assembly includes: a base; a fixing part, which is arranged on the base and the lock core is detachably connected to the fixing part; and a positioning pin, which is arranged on the base and is used to cooperate with the locking assembly for positioning.

[0016] In this technical solution, the fixing assembly includes a base, a fixing portion and a positioning pin. The fixing portion is arranged on the base, and the lock core is detachably connected to the fixing portion. By detachably connecting the lock core to the fixing portion, the telescopic movement of the lock core is utilized to connect or separate the locking assembly from the fixing assembly, thereby ensuring that the attachment can be quickly unlocked when grabbing the attachment and quickly locked when putting down the attachment, thereby improving the replacement efficiency of the attachment. Furthermore, by providing the positioning pin on the base to realize the guiding positioning between the positioning pin and the locking assembly, when replacing the attachment, the attachment can be quickly removed from the fixing portion or put down through the guiding positioning of the positioning pin, thereby improving the replacement efficiency.

[0017] In any of the above technical solutions, further, the locking assembly also includes a positioning hole, which is arranged on the lock housing and is used to cooperate with the positioning pin for positioning.

[0018] In this technical solution, the locking assembly further includes a positioning hole, wherein the positioning hole is arranged on the lock housing, and the lock housing and the positioning pin are matched to guide the positioning, so that the attachment can be quickly removed or put down from the fixed part, thereby improving the replacement efficiency.

[0019] In any of the above technical solutions, further, the lock core includes: a lock plate, which is inserted into the lock shell and movably connected to the toggle part; a lock tongue, which is arranged in the lock shell and connected to the lock plate; a slide groove, which is arranged on the lock plate and is inclined relative to the lock plate, one end of the toggle part is inserted into the slide groove, and the toggle part can slide back and forth in the slide groove to drive the lock plate to move, so that the lock tongue can be retracted and retracted on the lock shell.

[0020] In the technical solution, the lock core includes a lock plate, a lock tongue and a slide groove. The lock plate is inserted into the lock shell, and the lock plate is movably connected to the toggle part, that is, the toggle part can drive the lock plate to reciprocate in the lock shell. Further, by arranging the lock tongue in the lock shell, and the lock tongue is connected to the lock plate, that is, the toggle part is used to drive the lock plate to reciprocate, and since the lock tongue and the lock plate are connected together, the toggle part drives the lock tongue to reciprocate through the lock plate, that is, the lock tongue is telescopic relative to the fixed part, so that the locking component and the fixed component are quickly connected or separated. Further, by providing a slide groove on the lock plate, and the slide groove is inclined relative to the lock plate, one end of the toggle part is inserted into the slide groove, and the toggle part can slide back and forth in the slide groove. Since the slide groove and the lock plate are inclined, the toggle part can drive the lock plate to move, so that the lock tongue can be telescopic on the lock shell, so that the locking component and the fixed component are quickly connected or separated, ensuring that the attachment can be quickly unlocked when grabbing the attachment, and can be quickly locked when putting down the attachment, thereby improving the replacement efficiency of the attachment.

[0021] In any of the above technical solutions, further, the fixing part includes: a fixing plate, which is arranged on the base; an avoidance opening, which is opened on the fixing plate and the shape of the avoidance opening is adapted to the shape of the lock shell; a lock buckle, which is arranged on the fixing plate and is arranged corresponding to the lock tongue.

[0022] In this technical solution, the fixing part includes a fixing plate, an escape opening and a lock catch. The fixing plate is arranged on the base to fix the locking assembly. Furthermore, the escape opening is provided on the fixing plate, and the shape of the escape opening is adapted to the shape of the lock shell. By providing an opening whose shape is adapted to the lock shell on the fixing plate, it is convenient to align and connect the lock shell with the fixing plate when replacing the attachment, that is, it is convenient to lock or unlock the locking assembly with the fixing assembly, and realize the quick connection or separation between the locking assembly and the fixing assembly. Furthermore, the lock catch is arranged on the fixing plate, and is arranged corresponding to the lock tongue. By arranging the lock catch on the fixing plate, when locking with the locking assembly, the lock catch and the lock tongue are mutually engaged, so as to realize the locking of the locking assembly with the fixing assembly. It is ensured that the attachment can be quickly unlocked when grabbing the attachment, and can be quickly locked when putting down the attachment, thereby improving the replacement efficiency of the attachment. In addition, the locking buckle and the locking tongue are engaged in a manner that, after the attachment is fixed on the fixing component, the locking degree is high. During the driving and transportation of the vehicle, even if there is bumping and shaking, the attachment is not easy to detach from the fixing component, and the locking is firm and the fixing performance is strong.

[0023] In any of the above technical solutions, further, the toggle part includes: a fixed shaft, the fixed shaft is arranged at the end of the first pin shaft and is connected to the first pin shaft; a toggle member, one end of the toggle member is connected to the fixed shaft, and the other end is movably connected to the locking plate; a guide hole, the guide hole is arranged on the toggle member; a guide pin, one end of the guide pin is arranged on the ear plate, and the other end is passed through the guide hole, so that the toggle member moves along a preset direction.

[0024] In this technical solution, the toggle part includes a fixed shaft, a toggle member, a guide hole and a guide pin. The fixed shaft is arranged at the end of the first pin shaft and is connected to the first pin shaft. The fixed shaft is connected and fixed to the first pin shaft through the fixed shaft, so that the first pin shaft drives the fixed shaft to move, and then drives the toggle member to move. Furthermore, one end of the toggle member is connected to the fixed shaft, and the other end is movably connected to the locking plate, that is, one end of the toggle member is connected to the fixed shaft, and the other end is movably connected to the sliding groove of the locking plate. In this way, when the first pin shaft moves back and forth in the waist-shaped hole, it can drive the toggle member to move back and forth, and then the toggle member slides back and forth in the sliding groove of the locking plate, so that the locking plate is tightened or loosened by the toggle member, that is, the extension or contraction of the lock tongue is realized, and the locking component and the fixed component are locked or unlocked. Furthermore, a guide hole is provided on the toggle member, one end of the guide pin is provided on the ear plate to fix the guide pin, and the other end is passed through the guide hole to enable the toggle member to move along a preset direction. By providing a guide hole on the toggle member, it is used in conjunction with the guide pin to limit the movement direction of the toggle member, so that the toggle member moves in the preset direction, thereby effectively pulling or pushing the locking plate to reciprocate and extend, thereby realizing the connection or separation between the locking component and the fixing component.

[0025] In any of the above technical solutions, further, the propulsion assembly also includes an elastic part, which is arranged at the end of the first pin shaft and connected to the first pin shaft; when the propulsion assembly switches from the first state to the second state, the elastic part is compressed and deformed, and the first pin shaft moves from the first position to the second position; when the propulsion assembly switches from the second state to the first state, the elastic part is deformed and restored, so that the elastic part pushes the first pin shaft from the second position to the first position.

[0026] In this technical solution, the propulsion assembly also includes an elastic part. The elastic part is arranged at the end of the first pin shaft and is connected to the first pin shaft. By arranging the elastic part at the end of the first pin shaft, when the external force pushes the first pin shaft to move from the first position to the second position when replacing the attachment, when it is not pushed by the external force, that is, when it is not under force, the elastic part provides power output to push the first pin shaft back from the second position to the first position, so as to achieve the reciprocating motion of the first pin shaft in the waist-shaped hole. The toggle member is further driven to reciprocate, and the toggle member drives the reciprocating motion of the locking plate, so as to achieve the extension or contraction of the lock tongue, complete the engagement or separation between the lock tongue and the lock buckle, that is, to achieve the connection or separation of the locking assembly and the fixing assembly, to ensure that it can be quickly unlocked when grabbing the attachment, and can be quickly locked when putting down the attachment, thereby improving the efficiency of replacing the attachment.

[0027] Specifically, when the propulsion assembly switches from the first state to the second state, the elastic part will be compressed and deformed, and the first pin shaft will move from the first position to the second position, thereby realizing the separation and unlocking between the locking assembly and the fixing assembly, that is, realizing the rapid extraction of the attachment. When the propulsion assembly switches from the second state to the first state, the elastic part is deformed and restored, so that the elastic part pushes the first pin shaft from the second position to the first position. The locking assembly and the fixing assembly are locked, that is, the rapid fixation of the attachment is realized. The rapid replacement of the attachment is ensured, and the replacement efficiency of the attachment is effectively improved.

[0028] In any of the above technical solutions, further, the elastic part includes: a waist-shaped sleeve, which is arranged at the end of the first pin shaft; an elastic member, which is arranged inside the waist-shaped sleeve, one end of the elastic member is in conflict with the first pin shaft, and the other end is in conflict with the waist-shaped sleeve; a fastener, which is passed through the first pin shaft, the waist-shaped sleeve and the elastic member, so that the first pin shaft can reciprocate along the axial direction of the fastener.

[0029] In this technical solution, the elastic part includes a waist-shaped sleeve, an elastic member and a fastener. The waist-shaped sleeve is arranged at the end of the first pin shaft, that is, the waist-shaped sleeve is arranged at the end of the first pin shaft. Furthermore, the elastic member is arranged inside the waist-shaped sleeve, and one end of the elastic member conflicts with the first pin shaft, and the other end conflicts with the waist-shaped sleeve. The fastener is then passed through the first pin shaft, the waist-shaped sleeve and the elastic member, so that the first pin shaft can reciprocate along the axial direction of the fastener. In this way, in order to realize the reciprocating motion of the first pin shaft in the waist-shaped hole, the elastic member is deformed to provide power output when the first pin shaft is not subjected to force.

[0030] Specifically, when the first pin shaft switches from the first state to the second state, the elastic member is compressed and deformed, and the first pin shaft moves from the first position to the second position, realizing the separation and unlocking between the locking component and the fixing component, that is, realizing the rapid extraction of the attachment. When the first pin shaft switches from the second state to the first state, the elastic member is deformed and restored, so that the elastic member pushes the first pin shaft to move from the second position to the first position. The locking component and the fixing component are locked and the attachment is quickly fixed. The rapid replacement of the attachment is ensured, and the replacement efficiency of the attachment is effectively improved.

[0031] In any of the above technical solutions, further, the changing device also includes a second pin shaft, which is arranged on the ear plate and spaced apart from the first pin shaft.

[0032] In this technical solution, the replacement device also includes a second pin shaft. The second pin shaft is arranged on the ear plate and is spaced apart from the first pin shaft. By arranging the second pin shaft on the ear plate and arranging the second pin shaft and the first pin shaft at a distance, when grabbing the attachment, the attachment is firstly rotated downward by grabbing the second pin shaft, which is convenient for grabbing the first pin shaft, so that the replacement efficiency of the attachment is higher.

[0033] According to a second aspect of the present invention, an engineering vehicle is further provided, comprising: a reloading device as in any one of the above-mentioned solutions.

[0034] The engineering vehicle provided by the present invention includes the replacement device of any of the above-mentioned technical solutions, and therefore has all the beneficial effects of the replacement device, which will not be described in detail here.

[0035] In the above technical solution, further, the engineering vehicle also includes: a vehicle body, a fixing component is arranged on the vehicle body; a mechanical arm, the mechanical arm is arranged on the vehicle body, and the mechanical arm includes a first gripping part and a second gripping part; wherein, when the mechanical arm grasps the attachment, the first gripping part and the second gripping part respectively grasp the first pin shaft and the second pin shaft of the changing device to push the propulsion component to drive the locking component to retract, so that the locking component is separated from the fixing component, and when the mechanical arm removes the attachment, the first gripping part and the second gripping part are respectively separated from the first pin shaft and the second pin shaft, and the propulsion component drives the locking component to extend, so that the locking component is engaged with the fixing component.

[0036] In this technical solution, the engineering vehicle also includes a vehicle body and a mechanical arm. Among them, the mechanical arm includes a first gripping part and a second gripping part. Furthermore, the fixing component is arranged on the vehicle body, specifically in the accessory box of the vehicle body, so that the accessory is locked on the fixing component when not in use, that is, the accessory can be locked on the vehicle body when the operation is completed and carried with the vehicle, and after the fixing component locks the accessory, it can effectively prevent the accessory from shaking and jumping on the fixing component, and avoid the accessory from being violently shaken or even popping out of the fixing component during the transportation of the engineering vehicle, thereby improving the safety and reliability of the use of the changing device. Furthermore, by arranging the first gripping part and the second gripping part on the mechanical arm, when the mechanical arm replaces the accessory, the first gripping part and the second gripping part can respectively grip the first pin shaft and the second pin shaft of the changing device, so as to push the propulsion component to drive the locking component to retract, so as to separate the locking component from the fixing component, and realize quick unlocking. When the robot arm removes the attachment, the first gripping part and the second gripping part can be separated from the first pin shaft and the second pin shaft respectively, and the pushing component drives the locking component to extend, so that the locking component is engaged with the fixing component to realize the rapid locking of the attachment. In this way, the attachment can be quickly unlocked when grasping and quickly locked when putting down, thereby improving the replacement efficiency of the attachment.

[0037] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0039] Figure 1A schematic structural diagram of an engineering vehicle according to an embodiment of the present invention;

[0040] Figure 2 for Figure 1 A schematic diagram of a partially enlarged structure of a construction vehicle at position A of the illustrated embodiment;

[0041] Figure 3 for Figure 1 A schematic structural diagram of the engineering vehicle of the illustrated embodiment from another perspective;

[0042] Figure 4 for Figure 1 A schematic structural diagram of the engineering vehicle of the illustrated embodiment from another perspective;

[0043] Figure 5 A schematic diagram of the structure of a mechanical arm and a changing device in an engineering vehicle according to an embodiment of the present invention;

[0044] Figure 6 for Figure 5 A schematic structural diagram of a changing device of the illustrated embodiment;

[0045] Figure 7 for Figure 6 A schematic structural diagram of the changing device of the illustrated embodiment from another perspective;

[0046] Figure 8 for Figure 6 A schematic structural diagram of the changing device of the illustrated embodiment from another perspective;

[0047] Fig. 9 for Figure 6 A schematic structural diagram of the changing device of the illustrated embodiment from another perspective;

[0048] Fig.10 for Figure 6 A schematic structural diagram of the changing device of the illustrated embodiment from another perspective;

[0049] Fig.11 for Figure 1 A schematic structural diagram of a fixing portion in an engineering vehicle of the illustrated embodiment;

[0050] Fig.12 for Figure 6 A schematic structural diagram of a toggle member in a changing device of the illustrated embodiment;

[0051] Fig.13 for Figure 1 A schematic diagram of the structure of a fixing assembly in an engineering vehicle of the illustrated embodiment;

[0052] Fig.14 The figure is a schematic structural diagram of an engineering vehicle according to another embodiment of the present invention.

[0053] in, Figures 1 to 14 The corresponding relationship between the reference numerals and the component names is as follows:

[0054] 100 changing device, 110 attachment, 130 fixing assembly, 132 base, 134 fixing part, 136 positioning pin, 138 fixing plate, 140 avoidance opening, 142 lock catch, 150 locking assembly, 152 lock shell, 154 lock core, 156 positioning hole, 158 locking plate, 160 lock tongue, 162 slide groove, 170 pushing assembly, 172 ear plate, 174 waist hole, 176 first pin shaft, 178 toggle part, 180 elastic part, 182 second pin shaft, 184 fixing shaft, 186 toggle member, 188 guide hole, 190 guide pin, 192 waist sleeve, 194 elastic member, 196 fastener;

[0055] 200 car bodies;

[0056] 300 mechanical arm, 320 first gripping part, 340 second gripping part;

[0057] 400 engineering vehicles. DETAILED DESCRIPTION

[0058] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0059] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0060] Refer to the following Figures 1 to 14 To describe the refitting device 100 and the engineering vehicle 400 provided according to some embodiments of the present invention.

[0061] like Figures 1 to 4As shown, a dressing device 100 provided by an embodiment of the present invention includes: an attachment 110; a fixing component 130 for placing the attachment 110; a locking component 150, which is arranged on the attachment 110, and the locking component 150 can lock the attachment 110 to the fixing component 130; a propulsion component 170, which is arranged on the attachment 110, and the propulsion component 170 can switch between a first state and a second state, so that the locking component 150 and the fixing component 130 switch between a locked state and an unlocked state; wherein, when the propulsion component 170 is in the first state, the propulsion component 170 pushes the locking component 150 to retract, so that the locking component 150 and the fixing component 130 are unlocked; when the propulsion component 170 is in the second state, the propulsion component 170 pushes the locking component 150 to extend, so that the locking component 150 and the fixing component 130 are locked.

[0062] Specifically, Figure 1 and Figure 2 As shown, the changing device 100 includes an attachment 110, a fixing assembly 130, a locking assembly 150 and a propulsion assembly 170. The fixing assembly 130 is used to place the attachment 110, and the locking assembly 150 is arranged on the attachment 110. The locking assembly 150 can lock the attachment 110 and the fixing assembly 130, that is, the attachment 110 is connected to the fixing assembly 130 by the locking assembly 150 to achieve rapid fixation of the attachment 110, or the attachment 110 is separated from the fixing assembly 130 by the locking assembly 150 to achieve rapid grasping of the attachment 110, thereby achieving rapid replacement of the attachment 110. Further, the propulsion assembly 170 is arranged on the attachment 110, and the propulsion assembly 170 has two states, and the propulsion assembly 170 can switch between a first state and a second state, so that the locking assembly 150 and the fixing assembly 130 switch between a locked state and an unlocked state, thereby achieving rapid unlocking of the attachment 110 when grasping, and rapid locking when putting down. At the same time, after the fixing component 130 locks the attachment 110, it can effectively prevent the attachment 110 from shaking and jumping on the fixing component 130, and avoid the attachment 110 from shaking violently or even popping out of the fixing component 130 during transportation, thereby improving the safety and reliability of the changing device 100.

[0063] Specifically, Figure 1 and Figure 2As shown, during the process of replacing the attachment 110, when the propulsion assembly 170 is in the first state, the propulsion assembly 170 pushes the locking assembly 150 to retract, so that the locking assembly 150 and the fixing assembly 130 are unlocked, that is, the fixing assembly 130 unlocks the locking assembly 150, and the attachment 110 is quickly grasped. When the propulsion assembly 170 is in the second state, the propulsion assembly 170 pushes the locking assembly 150 to extend, so that the locking assembly 150 and the fixing assembly 130 are locked, that is, the fixing assembly 130 locks the locking assembly 150, and the attachment 110 is quickly locked. In addition, by locking the locking assembly 150 by the fixing assembly 130, the attachment 110 can be prevented from moving up and down or left and right on the fixing assembly 130, thereby improving the reliability of the fixing of the attachment 110.

[0064] More specifically, in the related art, engineering vehicles are equipped with a variety of attachments for engineering operations. During the process of replacing the attachments, there is a problem that the attachments cannot be automatically and quickly unlocked when they are grabbed, and cannot be automatically and quickly locked when they are put back. In addition, after the operation is completed, the attachments will be placed on the fixed components. During the driving and transportation process of the vehicle, due to the bumps and shakes, the attachments will shake violently or even pop out of the fixed components. In this application, if Figure 1 and Figure 2 As shown, by arranging a propulsion assembly 170 and a locking assembly 150 on the attachment 110, and arranging a fixing assembly 130 on the vehicle body 200, the propulsion assembly 170 has a first state and a second state, and the propulsion assembly 170 can switch between the first state and the second state. When the propulsion assembly 170 is in the first state, that is, the state of grabbing the attachment 110, the propulsion assembly 170 pushes the locking assembly 150 to retract, so that the locking assembly 150 and the fixing assembly 130 are unlocked; when the propulsion assembly 170 is in the second state, that is, the state of putting down the attachment 110, the propulsion assembly 170 pushes the locking assembly 150 to extend, so that the locking assembly 150 and the fixing assembly 130 are locked. By switching the propulsion assembly 170 between the first state and the second state, the locking assembly 150 and the fixing assembly 130 are switched between the locked and unlocked states, thereby solving the problem that during the operation of replacing the attachment 110, the locking assembly 150 cannot be automatically and quickly unlocked when grabbing, and cannot be automatically and quickly locked when putting back. And solve the problem that the attachment 110 may pop out of the fixing assembly 130 due to severe shaking after the attachment 110 is placed on the fixing assembly 130. The attachment 110 can be quickly unlocked when it is grabbed and quickly locked when it is put down, thereby improving the replacement efficiency of the attachment 110. And after the fixing assembly 130 locks the attachment 110, it can effectively prevent the attachment 110 from shaking and jumping on the fixing assembly 130, avoiding the attachment 110 from being violently shaken or even popping out of the fixing assembly 130 during transportation, thereby improving the safety and reliability of the replacement device 100.

[0065] In a specific application, the attachment 110 can be an operating tool such as an attachment and a machine tool carried by the engineering vehicle 400. When in use, the attachment 110 is used to change the operation by a gripper. When not in use, the attachment 110 is fixed on the fixing component 130 and carried with the vehicle. Furthermore, the number of locking components 150 can be set to two, and the two locking components 150 are respectively arranged on both sides of the attachment 110 for detachable connection with the fixing component 130. The number of fixing components 130 can be set to two for detachable connection with the locking component 150, further improving the reliability of the changing device 100. In addition, in a specific application, the changing device 100 can be specifically applied to engineering vehicles 400 such as multi-functional demolition vehicles and fire trucks, which are not listed one by one here.

[0066] In the above embodiment, further: Figure 6 , Figure 7 and Fig.10 As shown, the propulsion assembly 170 includes: an ear plate 172, which is arranged on the attachment 110; a waist-shaped hole 174, which is opened on the ear plate 172; a first pin shaft 176, which is passed through the waist-shaped hole 174 and can reciprocate in the waist-shaped hole 174; wherein, when the propulsion assembly 170 switches from the first state to the second state, the first pin shaft 176 moves from the first position to the second position to drive the locking assembly 150 to retract and unlock with the fixing assembly 130; when the propulsion assembly 170 switches from the second state to the first state, the first pin shaft 176 moves from the second position to the first position to drive the locking assembly 150 to extend and connect and lock with the fixing assembly 130.

[0067] Specifically, Figure 6 , Figure 7 and Fig.10As shown, the propulsion assembly 170 includes an ear plate 172, a waist-shaped hole 174 and a first pin 176. The ear plate 172 is provided on the attachment 110, and a waist-shaped hole 174 is provided on the ear plate 172. Furthermore, the first pin 176 is installed on the ear plate 172 through the waist-shaped hole 174, and the first pin 176 can reciprocate in the waist-shaped hole 174, so that when the propulsion assembly 170 switches from the first state to the second state, the first pin 176 moves from the first position to the second position, that is, the first pin 176 can move from one end of the waist-shaped hole 174 to the other end, thereby driving the locking assembly 150 to contract, and at this time, the locking assembly 150 is separated from the fixing assembly 130, so that the locking assembly 150 and the fixing assembly 130 are unlocked. When the propulsion assembly 170 switches from the second state to the first state, the first pin 176 moves from the second position to the first position, that is, the first pin 176 can return from the other end of the waist-shaped hole 174, thereby driving the locking assembly 150 to extend, and at this time, the locking assembly 150 is engaged with the fixing assembly 130, so that the locking assembly 150 and the fixing assembly 130 are connected and locked. The first pin 176 reciprocates in the waist-shaped hole 174, so that the propulsion assembly 170 can push the locking assembly 150 to move relative to the fixing assembly 130, and lock or separate the locking assembly 150 from the fixing assembly 130, so that the attachment 110 can be quickly unlocked when grasping, and can be quickly locked when putting down, thereby improving the replacement efficiency of the attachment 110.

[0068] In a specific application, the ear plate 172 can be set as a steel plate, and the ear plate 172 can be welded to the attachment 110. The specific number of the ear plates 172 is set to two, and they are arranged opposite to each other.

[0069] In any of the above embodiments, further, Figures 5 to 7 and Fig.10 As shown, the locking assembly 150 includes a lock shell 152 and a lock core 154, the lock shell 152 is arranged on the attachment 110, and the lock core 154 is inserted in the lock shell 152, and the lock core 154 can telescopically move relative to the lock shell 152; the pushing assembly 170 also includes a toggle portion 178, one end of the toggle portion 178 is connected to the first pin shaft 176, and the other end of the toggle portion 178 is movably connected to the lock core 154; when the first pin shaft 176 is in the first position, the first pin shaft 176 drives the lock core 154 to be in the third position through the toggle portion 178, and the lock core 154 extends toward the direction close to the fixing assembly 130, so that the locking assembly 150 is connected and locked with the fixing assembly 130; when the first pin shaft 176 is in the second position, the first pin shaft 176 drives the lock core 154 to be in the fourth position through the toggle portion 178, and the lock core 154 retracts toward the direction away from the fixing assembly 130, so that the locking assembly 150 is separated from the fixing assembly 130 and unlocked.

[0070] Specifically, Figures 5 to 7 and Fig.10 As shown, the locking assembly 150 includes a lock housing 152 and a lock core 154. The lock housing 152 is disposed on the attachment 110, and the lock core 154 is inserted in the lock housing 152. The lock core 154 can move telescopically relative to the lock housing 152. When the propulsion assembly 170 switches between the first state and the second state, the lock core 154 can move telescopically relative to the fixing assembly 130, thereby achieving connection or separation between the lock core 154 and the fixing assembly 130, thereby achieving locking and unlocking of the locking assembly 150 and the fixing assembly 130. Furthermore, the propulsion assembly 170 also includes a toggle portion 178, one end of the toggle portion 178 is connected to the first pin shaft 176, and the other end of the toggle portion 178 is movably connected to the lock core 154. The first pin shaft 176 and the lock core 154 are connected through the toggle portion 178, so that when the first pin shaft 176 reciprocates in the waist-shaped hole 174, the lock core 154 is driven to extend and retract through the toggle portion 178, thereby realizing the connection or separation between the lock core 154 and the fixing assembly 130.

[0071] Specifically, when the first pin 176 is in the first position, the first pin 176 drives the lock core 154 to the third position through the toggle portion 178, and the lock core 154 extends toward the direction close to the fixing assembly 130, so that the locking assembly 150 is connected and locked with the fixing assembly 130; when the first pin 176 is in the second position, the first pin 176 drives the lock core 154 to the fourth position through the toggle portion 178, and the lock core 154 retracts away from the fixing assembly 130, so that the locking assembly 150 is separated and unlocked from the fixing assembly 130. In this way, the attachment 110 can be quickly unlocked when it is grabbed, and can be quickly locked when it is put down, thereby improving the exchange efficiency of the attachment 110. In addition, after the fixing assembly 130 locks the attachment 110, it can effectively prevent the attachment 110 from shaking and jumping on the fixing assembly 130, and avoid the attachment 110 from being violently shaken or even ejected from the fixing assembly 130 during transportation, thereby improving the safety and reliability of the replacement device 100.

[0072] In a specific application, the number of the toggle parts 178 can be set to two, and the two toggle parts 178 are respectively disposed at two ends of the first pin shaft 176 to connect the first pin shaft 176 and the locking assembly 150 .

[0073] In any of the above embodiments, further, Figure 2 and Figure 3 As shown, the fixing assembly 130 includes: a base 132; a fixing portion 134, the fixing portion 134 is arranged on the base 132, and the lock core 154 is detachably connected to the fixing portion 134; and a positioning pin 136, the positioning pin 136 is arranged on the base 132 for cooperating with the locking assembly 150 for positioning.

[0074] Specifically, Figure 2 , Figure 3 and Fig.13 As shown, the fixing assembly 130 includes a base 132, a fixing portion 134 and a positioning pin 136. The fixing portion 134 is arranged on the base 132, and the lock core 154 is detachably connected to the fixing portion 134. The lock core 154 is detachably connected to the fixing portion 134, so that the locking assembly 150 is connected or separated from the fixing assembly 130 by utilizing the telescopic movement of the lock core 154, ensuring that the attachment 110 can be quickly unlocked when it is grabbed, and can be quickly locked when it is put down, thereby improving the replacement efficiency of the attachment 110. Furthermore, the positioning pin 136 is arranged on the base 132 to achieve the guiding positioning between the positioning pin 136 and the locking assembly 150, so that when the attachment 110 is replaced, the attachment 110 can be quickly removed or put down from the fixing portion 134 through the guiding positioning of the positioning pin 136, thereby improving the replacement efficiency.

[0075] In any of the above embodiments, further, Figures 5 to 7 and Fig.10 As shown, the locking assembly 150 further includes a positioning hole 156 , which is disposed on the lock housing 152 for cooperating with the positioning pin 136 for positioning.

[0076] Specifically, Figures 5 to 7 and Fig.10 As shown, the locking assembly 150 further includes a positioning hole 156. The positioning hole 156 is provided on the lock housing 152, and the lock housing 152 and the positioning pin 136 are matched to guide the positioning, so that the attachment 110 can be quickly removed or put down from the fixing portion 134, thereby improving the replacement efficiency.

[0077] Specifically, a positioning hole 156 is provided on the lock shell 152, and a positioning pin 136 is provided on the fixing assembly 130. In this way, when replacing the accessory 110, the positioning pin 136 is aligned with the positioning hole 156 for taking and placing. That is, the positioning pin 136 is used to pass through or disengage from the positioning hole 156 to replace the accessory 110, thereby realizing a quick connection or separation between the locking assembly 150 and the fixing assembly 130, ensuring that the accessory 110 can be quickly unlocked when grasping it and can be quickly locked when putting it down, thereby improving the replacement efficiency of the accessory 110.

[0078] In any of the above embodiments, further, Figure 6 , Figure 7 and Fig.10As shown, the lock core 154 includes: a lock plate 158, which is inserted into the lock shell 152 and movably connected to the toggle portion 178; a lock tongue 160, which is arranged in the lock shell 152 and connected to the lock plate 158; a slide groove 162, which is arranged on the lock plate 158 and is inclined relative to the lock plate 158, one end of the toggle portion 178 is inserted into the slide groove 162, and the toggle portion 178 can slide back and forth in the slide groove 162 to drive the lock plate 158 to move, so that the lock tongue 160 can be retracted on the lock shell 152.

[0079] Specifically, Figure 6 , Figure 7 and Fig.10 As shown, the lock core 154 includes a locking piece 158, a locking tongue 160 and a sliding groove 162. The locking piece 158 is inserted into the lock housing 152, and the locking piece 158 is movably connected to the toggle portion 178, that is, the toggle portion 178 can drive the locking piece 158 to reciprocate in the lock housing 152. Further, by arranging the locking tongue 160 in the lock housing 152, and connecting the locking tongue 160 to the locking piece 158, that is, using the toggle portion 178 to drive the locking piece 158 to reciprocate, since the locking tongue 160 and the locking piece 158 are connected together, the toggle portion 178 drives the locking tongue 160 to reciprocate through the locking piece 158, that is, the locking tongue 160 is telescoped relative to the fixing portion 134, thereby realizing the rapid connection or separation between the locking assembly 150 and the fixing assembly 130. Furthermore, by providing a slide groove 162 on the locking plate 158, and the slide groove 162 is inclined relative to the locking plate 158, one end of the toggle portion 178 is inserted into the slide groove 162, and the toggle portion 178 can slide back and forth in the slide groove 162. Since the slide groove 162 and the locking plate 158 are inclined, the toggle portion 178 can drive the locking plate 158 to move, so that the lock tongue 160 can be retracted on the lock shell 152, thereby realizing rapid connection or separation between the locking assembly 150 and the fixing assembly 130, ensuring that the attachment 110 can be quickly unlocked when it is grabbed, and can be quickly locked when the attachment 110 is put down, thereby improving the replacement efficiency of the attachment 110.

[0080] In a specific application, the slide groove 162 can be opened into an elliptical long hole or an oblong hole so that the toggle portion 178 can slide back and forth in the slide groove 162 to make the lock tongue 160 extend and retract on the lock shell 152 to achieve rapid locking or unlocking between the locking component 150 and the fixing component 130.

[0081] In specific applications, the lock tongue 160 and the lock plate 158 can be set as an integrated structure, that is, the lock tongue 160 and the lock plate 158 are installed in the lock shell 152 as an integral structure. By setting the lock tongue 160 and the lock plate 158 as an integrated structure, the number of components can be effectively reduced, the structure of the lock core 154 can be simplified, and the production and processing costs can be reduced.

[0082] In any of the above embodiments, further, Fig.11 As shown, the fixing portion 134 includes: a fixing plate 138, which is disposed on the base 132; an escape opening 140, which is opened on the fixing plate 138, and the shape of the escape opening 140 is adapted to the shape of the lock shell 152; and a lock buckle 142, which is disposed on the fixing plate 138 and is corresponding to the lock tongue 160.

[0083] Specifically, Fig.11 As shown, the fixing portion 134 includes a fixing plate 138, an escape opening 140 and a lock catch 142. The fixing plate 138 is disposed on the base 132 to fix the locking assembly 150. Furthermore, the escape opening 140 is provided on the fixing plate 138, and the shape of the escape opening 140 is adapted to the shape of the lock shell 152. By providing an opening on the fixing plate 138 that is adapted to the shape of the lock shell 152, when replacing the attachment 110, it is convenient to align and connect the lock shell 152 with the fixing plate 138, that is, it is convenient to lock or unlock the locking assembly 150 with the fixing assembly 130, and realize quick connection or separation between the locking assembly 150 and the fixing assembly 130. Furthermore, the lock buckle 142 is arranged on the fixing plate 138 and is arranged corresponding to the lock tongue 160. By arranging the lock buckle 142 on the fixing plate 138, when locked with the locking assembly 150, the lock buckle 142 and the lock tongue 160 are mutually engaged, so as to realize the locking of the locking assembly 150 and the fixing assembly 130. It is ensured that the attachment 110 can be quickly unlocked when grabbing it, and can be quickly locked when putting it down, thereby improving the exchange efficiency of the attachment 110. In addition, the locking buckle 142 and the lock tongue 160 are engaged in a manner that, after the attachment 110 is fixed on the fixing assembly 130, the locking degree is high. During the driving and transportation of the vehicle, even if it is bumped and shaken, the attachment 110 is not easy to be separated from the fixing assembly 130, and the locking is firm and the fixing performance is strong.

[0084] Specifically, Fig.11 As shown, the lock buckle 142 is arranged on both sides of the avoidance opening 140 of the fixing plate 138, and the position of the lock buckle 142 corresponds to the position of the lock tongue 160 when it is extended, so that the lock tongue 160 is conveniently engaged in the lock buckle 142, so as to realize the connection and fixation of the locking assembly 150 and the fixing assembly 130. In a specific application, the lock buckle 142 structure can be set to a stepped structure for locking. This stepped locking structure is easy to engage, has a high locking effect, and the attachment 110 is not easy to be separated or jumped from the fixing assembly 130.

[0085] In any of the above embodiments, further, Figure 6 , Figure 7 and Fig.10As shown, the toggle portion 178 includes: a fixed shaft 184, the fixed shaft 184 is arranged at the end of the first pin shaft 176 and is connected to the first pin shaft 176; a toggle member 186, one end of the toggle member 186 is connected to the fixed shaft 184, and the other end is movably connected to the locking plate 158; a guide hole 188, the guide hole 188 is arranged on the toggle member 186; a guide pin 190, one end of the guide pin 190 is arranged on the ear plate 172, and the other end is passed through the guide hole 188, so that the toggle member 186 moves along a preset direction.

[0086] Specifically, Figure 6 , Figure 7 and Fig.10 As shown, the toggle portion 178 includes a fixed shaft 184, a toggle member 186, a guide hole 188 and a guide pin 190. The fixed shaft 184 is disposed at the end of the first pin shaft 176 and connected to the first pin shaft 176. The fixed shaft 184 is connected and fixed to the first pin shaft 176, so that the first pin shaft 176 drives the fixed shaft 184 to move, thereby driving the toggle member 186 to move. Furthermore, one end of the toggle member 186 is connected to the fixed shaft 184, and the other end is movably connected to the locking plate 158, that is, one end of the toggle member 186 is connected to the fixed shaft 184, and the other end is movably connected to the slide groove 162 of the locking plate 158. In this way, driven by the first pin shaft 176, when the first pin shaft 176 moves back and forth in the waist-shaped hole 174, it can drive the toggle member 186 to reciprocate, and then make the toggle member 186 slide back and forth in the slide groove 162 of the locking plate 158, so that the locking plate 158 is tightened or relaxed by the toggle member 186, that is, the extension or contraction of the lock tongue 160 is realized, and the locking assembly 150 and the fixed assembly 130 are locked or unlocked. Furthermore, the guide hole 188 is provided on the toggle member 186, one end of the guide pin 190 is provided on the ear plate 172 to fix the guide pin 190, and the other end is passed through the guide hole 188 to enable the toggle member 186 to move along a preset direction. By providing the guide hole 188 on the toggle member 186, it is used in conjunction with the guide pin 190 to limit the movement direction of the toggle member 186, so that the toggle member 186 moves in the preset direction, thereby effectively pulling or pushing the locking plate 158 to reciprocate and extend, thereby realizing the connection or separation between the locking assembly 150 and the fixing assembly 130.

[0087] Specifically, Fig.12As shown, one end of the toggle member 186 is provided with an opening, and is sleeved on the fixed shaft 184 through the opening to achieve connection with the first pin shaft 176. The other end of the toggle member 186 is a cylindrical structure, and is at a certain angle with the main body of the toggle member 186, so that it is easy to slide in the slide groove 162 of the lock plate 158, which can help push or tighten the lock plate 158 to drive the lock tongue 160 to move. Further, a guide hole 188 is provided on the toggle member 186, and the position of the guide hole 188 corresponds to the position of the guide pin 190, which is conducive to limiting the movement direction of the toggle member 186 through the cooperation of the guide hole 188 and the guide pin 190, ensuring that the toggle member 186 can effectively push or pull the lock plate 158. In addition, the axis of the fixed shaft 184 coincides with the axis of the first pin shaft 176, and the fixed shaft 184 can be welded to the first pin shaft 176, or integrally formed with the first pin shaft 176.

[0088] In a specific application, one end of the toggle member 186 may not have an opening, and may be welded to the fixed shaft 184 by welding to achieve connection with the first pin shaft 176. Alternatively, the toggle member 186 and the fixed shaft 184 are configured as an integral structure connected to the end of the first pin shaft 176 to achieve connection with the first pin shaft 176. It should be noted that the structure of the toggle member 186 and the fixed shaft 184 can be set according to specific circumstances, as long as the toggle member 186 can be connected to the first pin shaft 176, and they are not listed one by one here.

[0089] In any of the above embodiments, further, Figures 8 to 10 As shown, the propulsion assembly 170 also includes an elastic portion 180, which is disposed at the end of the first pin shaft 176 and connected to the first pin shaft 176; when the propulsion assembly 170 switches from the first state to the second state, the elastic portion 180 is compressed and deformed, and the first pin shaft 176 moves from the first position to the second position; when the propulsion assembly 170 switches from the second state to the first state, the elastic portion 180 is deformed and restored, so that the elastic portion 180 pushes the first pin shaft 176 to move from the second position to the first position.

[0090] Specifically, Fig. 9As shown, the propulsion assembly 170 further includes an elastic portion 180. The elastic portion 180 is disposed at the end of the first pin shaft 176 and is connected to the first pin shaft 176. By disposing the elastic portion 180 at the end of the first pin shaft 176, when the attachment 110 is replaced, when an external force pushes the first pin shaft 176 to move from the first position to the second position, when it is not pushed by an external force, that is, when it is not under force, the elastic portion 180 provides power output to push the first pin shaft 176 from the second position back to the first position, so that the first pin shaft 176 can reciprocate in the waist-shaped hole 174. The toggle member 186 is further driven to reciprocate, and the toggle member 186 drives the locking plate 158 to reciprocate, thereby realizing the extension or contraction of the locking tongue 160, completing the engagement or separation between the locking tongue 160 and the lock buckle 142, that is, realizing the connection or separation between the locking assembly 150 and the fixing assembly 130, ensuring that the attachment 110 can be quickly unlocked when it is grabbed, and can be quickly locked when it is put down, thereby improving the replacement efficiency of the attachment 110.

[0091] Specifically, Fig. 9 As shown, when the propulsion assembly 170 switches from the first state to the second state, the elastic part 180 will be compressed and deformed, and the first pin shaft 176 moves from the first position to the second position, so as to realize the separation and unlocking between the locking assembly 150 and the fixing assembly 130, that is, to realize the rapid extraction of the attachment 110. When the propulsion assembly 170 switches from the second state to the first state, the elastic part 180 is deformed and restored, so that the elastic part 180 pushes the first pin shaft 176 from the second position to the first position. The locking assembly 150 and the fixing assembly 130 are locked by snapping, that is, the rapid fixation of the attachment 110 is realized. The rapid replacement of the attachment 110 is ensured, and the replacement efficiency of the attachment 110 is effectively improved.

[0092] In a specific application, the number of the elastic parts 180 can be set to two, and the two elastic parts 180 are respectively arranged at two ends of the first pin shaft 176 .

[0093] In any of the above embodiments, further, Fig. 9 As shown, the elastic part 180 includes: a waist-shaped sleeve 192, which is arranged at the end of the first pin shaft 176; an elastic member 194, which is arranged inside the waist-shaped sleeve 192, one end of the elastic member 194 is in conflict with the first pin shaft 176, and the other end is in conflict with the waist-shaped sleeve 192; a fastener 196, which is passed through the first pin shaft 176, the waist-shaped sleeve 192 and the elastic member 194, so that the first pin shaft 176 can reciprocate along the axial direction of the fastener 196.

[0094] Specifically, Fig. 9As shown, the elastic part 180 includes a waist sleeve 192, an elastic member 194 and a fastener 196. The waist sleeve 192 is arranged at the end of the first pin shaft 176, that is, the waist sleeve 192 is sleeved at the end of the first pin shaft 176. Further, the elastic member 194 is arranged inside the waist sleeve 192, and one end of the elastic member 194 conflicts with the first pin shaft 176, and the other end conflicts with the waist sleeve 192. Then, the fastener 196 passes through the first pin shaft 176, the waist sleeve 192 and the elastic member 194, so that the first pin shaft 176 can reciprocate along the axis direction of the fastener 196. In this way, in order to realize the reciprocating movement of the first pin shaft 176 in the waist hole 174, the elastic member 194 is deformed to provide power output when the first pin shaft 176 is not subjected to force.

[0095] Specifically, when the first pin 176 switches from the first state to the second state, the elastic member 194 is compressed and deformed, and the first pin 176 moves from the first position to the second position, realizing the separation and unlocking between the locking assembly 150 and the fixing assembly 130, that is, realizing the rapid extraction of the attachment 110. When the first pin 176 switches from the second state to the first state, the elastic member 194 is deformed and restored, so that the elastic member 194 pushes the first pin 176 from the second position to the first position. The locking assembly 150 and the fixing assembly 130 are locked and the attachment 110 is quickly fixed. The rapid replacement of the attachment 110 is ensured, and the replacement efficiency of the attachment 110 is effectively improved.

[0096] In the specific implementation, Fig. 9 As shown, the shape of the waist sleeve 192 is adapted to the shape of the waist hole 174, the elastic member 194 can be specifically set as a spring, and the fastener 196 can be set as a locking bolt and a nut. The waist sleeve 192, the first pin shaft 176 and the spring are inserted together by the locking bolt, and the nut is tightened and fixed at one end, ensuring that the elastic member 194 can provide stable power output, realizing the reciprocating movement of the first pin shaft 176 in the waist hole 174, realizing the clamping and locking between the locking component 150 and the fixing component 130, and realizing the rapid fixation of the attachment 110. The rapid replacement of the attachment 110 is ensured, and the replacement efficiency of the attachment 110 is effectively improved.

[0097] In any of the above embodiments, further, Figures 5 to 7 As shown, the changing device 100 further includes a second pin shaft 182 , which is disposed on the ear plate 172 and spaced apart from the first pin shaft 176 .

[0098] Specifically, Figure 5 and Figure 6As shown, the changing device 100 further includes a second pin 182. The second pin 182 is disposed on the ear plate 172 and is spaced apart from the first pin 176. By arranging the second pin 182 on the ear plate 172 and spacing the second pin 182 and the first pin 176, when grabbing the attachment 110, the second pin 182 is first grabbed to make the attachment 110 tilt and rotate downward, which is convenient for grabbing the first pin 176, so that the replacement efficiency of the attachment 110 is higher.

[0099] Specifically, Figure 5 As shown, when the arm of the robotic arm 300 replaces the attachment 110, the second pin 182 is first grasped by the first gripping portion 320. When the first gripping portion 320 contacts the second pin 182, the attachment 110 will be rotated downward on the fixing assembly 130, and then the first pin 176 will be rotated to a position aligned with the second gripping portion 340. The robotic arm 300 can be pushed forward to accurately grasp the first pin 176, and push the first pin 176 forward, so that the first pin 176 moves from the first position to the second position, thereby realizing the separation and unlocking between the locking assembly 150 and the fixing assembly 130, that is, realizing the rapid extraction of the attachment 110.

[0100] According to a second aspect of the present invention, an engineering vehicle 400 is further proposed, comprising: a reloading device 100 according to any one of the above embodiments.

[0101] In this embodiment, the engineering vehicle 400 includes the refitting device 100 of any of the above embodiments, and thus has all the beneficial effects of the refitting device 100. In specific applications, the engineering vehicle 400 may specifically include a multifunctional demolition vehicle, a fire truck, and other engineering vehicles 400, which are not listed one by one here.

[0102] In the above embodiment, further: Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the engineering vehicle 400 also includes: a vehicle body 200, a fixing assembly 130 is arranged on the vehicle body 200; a mechanical arm 300, the mechanical arm 300 is arranged on the vehicle body 200, and the mechanical arm 300 includes a first gripping portion 320 and a second gripping portion 340; wherein, when the mechanical arm 300 grabs the attachment 110, the first gripping portion 320 and the second gripping portion 340 are respectively gripped with the first pin 176 and the second pin 182 of the changing device 100, so as to push the propulsion assembly 170 to drive the locking assembly 150 to retract, so that the locking assembly 150 is separated from the fixing assembly 130, and when the mechanical arm 300 removes the attachment 110, the first gripping portion 320 and the second gripping portion 340 are respectively separated from the first pin 176 and the second pin 182, and the propulsion assembly 170 drives the locking assembly 150 to extend, so that the locking assembly 150 is engaged with the fixing assembly 130.

[0103] Specifically, Figure 5 and Fig.14 As shown, the engineering vehicle 400 also includes a vehicle body 200 and a mechanical arm 300. Among them, the mechanical arm 300 includes a first gripping portion 320 and a second gripping portion 340. Further, the fixing assembly 130 is arranged on the vehicle body 200, specifically, in the attachment 110 box of the vehicle body 200, so that the attachment 110 is locked on the fixing assembly 130 when not in use, that is, the attachment 110 can be locked on the vehicle body 200 when the operation is completed, and can be carried with the vehicle, and after the fixing assembly 130 locks the attachment 110, it can effectively prevent the attachment 110 from shaking and jumping on the fixing assembly 130, and avoid the attachment 110 from being violently shaken or even ejected from the fixing assembly 130 during the transportation of the engineering vehicle 400, thereby improving the safety and reliability of the use of the changing device 100. Furthermore, by providing the first gripping portion 320 and the second gripping portion 340 on the mechanical arm 300, when the mechanical arm 300 replaces the attachment 110, the first gripping portion 320 and the second gripping portion 340 can respectively grip the first pin 176 and the second pin 182 of the changing device 100, so as to push the propulsion assembly 170 to drive the locking assembly 150 to retract, so as to separate the locking assembly 150 from the fixing assembly 130, and realize rapid unlocking. When the mechanical arm 300 removes the attachment 110, the first gripping portion 320 and the second gripping portion 340 can respectively separate from the first pin 176 and the second pin 182, and the propulsion assembly 170 drives the locking assembly 150 to extend, so as to engage the locking assembly 150 with the fixing assembly 130, and realize rapid locking of the attachment 110. Thus, the attachment 110 can be quickly unlocked when grasped, and can be quickly locked when put down, thereby improving the replacement efficiency of the attachment 110.

[0104] Specifically, when the engineering vehicle 400 completes different engineering operations, different attachments 110 are required to perform the operations, so different attachments 110 need to be replaced. When the mechanical arm 300 replaces the attachment 110, the first gripping portion 320 and the second gripping portion 340 are respectively gripped with the first pin 176 and the second pin 182 of the changing device 100 to push the propulsion assembly 170 to drive the first pin 176 to move from the first position to the second position. At this time, the elastic portion 180 is compressed and deformed, and the first pin 176 drives the toggle member 186 to slide on the locking plate 158, so that the locking plate 158 drives the locking tongue 160 to contract, thereby realizing the unlocking between the locking assembly 150 and the fixing assembly 130, that is, realizing the rapid extraction of the attachment 110. When the robot arm 300 removes the attachment 110, the first gripping portion 320 and the second gripping portion 340 are separated from the first pin 176 and the second pin 182 respectively. At this time, the elastic portion 180 is deformed and restored, and the elastic portion 180 pushes the first pin 176 to move from the second position to the first position. The first pin 176 drives the toggle member 186 to slide on the locking plate 158, so that the locking plate 158 drives the locking tongue 160 to extend, and the locking assembly 150 and the fixing assembly 130 are locked by the card connection, that is, the attachment 110 is quickly put back and fixed. In this way, the attachment 110 can be quickly unlocked when grasping and quickly locked when putting down, thereby improving the replacement efficiency of the attachment 110. At the same time, after the fixing component 130 locks the attachment 110, it can effectively prevent the attachment 110 from shaking and jumping on the fixing component 130, and avoid the attachment 110 from shaking violently or even popping out of the fixing component 130 during transportation, thereby improving the safety and reliability of the changing device 100.

[0105] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected 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.

[0106] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dressing device, characterized in that: The changing device comprises: Attachment; A fixing component, used for placing the attachment; A locking component, the locking component is arranged on the attachment, and the locking component can lock the attachment to the fixing component; A propulsion assembly, the propulsion assembly being arranged on the attachment, the propulsion assembly being capable of switching between a first state and a second state so as to switch the locking assembly and the fixing assembly between a locked state and an unlocked state; The propulsion assembly comprises: An ear plate, arranged on the attachment; A waist-shaped hole, the waist-shaped hole is opened on the ear plate; A first pin shaft, the first pin shaft is passed through the waist-shaped hole and can reciprocate in the waist-shaped hole; Wherein, when the propulsion assembly switches from the first state to the second state, the first pin shaft moves from the first position to the second position to drive the locking assembly to retract and unlock with the fixing assembly; When the propulsion assembly switches from the second state to the first state, the first pin moves from the second position to the first position to drive the locking assembly to extend and connect and lock with the fixing assembly; The propulsion assembly further includes a toggle portion, one end of which is connected to the first pin shaft, and the other end of which is movably connected to the locking assembly; The propulsion assembly further includes an elastic portion, which is disposed at an end of the first pin shaft and connected to the first pin shaft; When the propulsion assembly switches from the first state to the second state, the elastic part is compressed and deformed, and the first pin shaft moves from the first position to the second position. When the propulsion assembly switches from the second state to the first state, the elastic part is deformed and restored, so that the elastic part pushes the first pin shaft to move from the second position to the first position. The elastic portion comprises: A waist-shaped sleeve, the waist-shaped sleeve is arranged at the end of the first pin shaft; An elastic member, wherein the elastic member is disposed inside the waist sleeve, one end of the elastic member is in conflict with the first pin shaft, and the other end of the elastic member is in conflict with the waist sleeve; A fastener is provided through the first pin shaft, the waist sleeve and the elastic member so that the first pin shaft can reciprocate along the axial direction of the fastener.

2. The dressing device according to claim 1, characterized in that: The locking assembly comprises a lock housing and a lock core, wherein the lock housing is arranged on the attachment, the lock core is inserted in the lock housing, and the lock core can move telescopically relative to the lock housing; When the first pin shaft is in the first position, the first pin shaft drives the lock core to be in the third position through the toggle portion, and the lock core extends toward the fixing assembly so that the locking assembly is connected and locked with the fixing assembly; When the first pin shaft is in the second position, the first pin shaft drives the lock core to be in the fourth position through the toggle portion, and the lock core retracts in a direction away from the fixing assembly to unlock the locking assembly from the fixing assembly.

3. The dressing device according to claim 2, characterized in that: The fixing assembly comprises: Base; A fixing part, the fixing part is arranged on the base, and the lock core is detachably connected to the fixing part; A positioning pin is arranged on the base and is used for cooperating with the locking assembly for positioning.

4. The changing device according to claim 3, characterized in that: The locking assembly further comprises a positioning hole, which is arranged on the lock housing and is used for cooperating with the positioning pin for positioning.

5. The dressing device according to claim 3, characterized in that: The lock core comprises: A locking plate, the locking plate being inserted into the lock housing and movably connected to the toggle portion; A lock tongue, wherein the lock tongue is disposed in the lock housing and connected to the lock piece; A slide groove is arranged on the locking plate, and the slide groove is inclined relative to the locking plate, one end of the toggle portion is inserted into the slide groove, and the toggle portion can slide back and forth in the slide groove to drive the locking plate to move, so that the lock tongue can be retracted on the lock shell.

6. The changing device according to claim 5, characterized in that: The fixing portion comprises: A fixing plate, the fixing plate being arranged on the base; An escape opening, the escape opening being opened on the fixing plate, and the shape of the escape opening being adapted to the shape of the lock housing; A lock buckle is arranged on the fixing plate and corresponds to the locking tongue.

7. The changing device according to claim 5, characterized in that: The toggle portion comprises: A fixed shaft, the fixed shaft is arranged at an end of the first pin shaft and connected to the first pin shaft; A toggle member, one end of which is connected to the fixed shaft, and the other end of which is movably connected to the locking plate; A guide hole, wherein the guide hole is arranged on the toggle member; A guide pin, one end of which is arranged on the ear plate, and the other end of which is passed through the guide hole, so that the toggle member moves along a preset direction.

8. The changing device according to any one of claims 1 to 7, characterized in that: The changing device also includes a second pin shaft, which is arranged on the ear plate and spaced apart from the first pin shaft.

9. An engineering vehicle, characterized in that: include: A dressing device as claimed in any one of claims 1 to 8.

10. The engineering vehicle according to claim 9, characterized in that: The engineering vehicle also includes: a vehicle body, the fixing assembly being arranged on the vehicle body; A mechanical arm, the mechanical arm is arranged on the vehicle body, and the mechanical arm comprises a first gripping portion and a second gripping portion; Wherein, when the robotic arm grasps the attachment, the first grasping part and the second grasping part grasp the first pin shaft and the second pin shaft of the changing device respectively, so as to push the propulsion assembly to drive the locking assembly to retract, so that the locking assembly is separated from the fixing assembly; when the robotic arm removes the attachment, the first grasping part and the second grasping part are separated from the first pin shaft and the second pin shaft respectively, and the propulsion assembly drives the locking assembly to extend, so that the locking assembly is engaged with the fixing assembly.

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