Fixing device and motorized apparatus

Abstract

The application provides a fixing device and a motorized equipment, wherein the fixing device comprises a first clamping assembly and a second clamping assembly, the first clamping assembly can be arranged on a vehicle frame, the second clamping assembly can be arranged on a rear bumper, the first clamping assembly comprises a first clamping part, the second clamping assembly is adjacent to the first clamping assembly, and the second clamping assembly comprises a fixing seat, a second clamping part and a pulling structure. The fixing seat is provided with a first mounting groove, the second clamping part is arranged in the first mounting groove, the pulling structure is arranged in the fixing seat and the second clamping part, and the part of the pulling structure in the first mounting groove is further provided with an elastic piece, and the elastic piece is arranged in the circumference of the pulling structure. The application can realize the clamping and unlocking between the vehicle frame and the rear bumper through simple steps, further ensures that the vehicle frame is more stable when encountering bumps in the driving process, and avoids the situation that the vehicle frame or the spare tire is loose or even falls off.

Description

Technical Field

[0001] This application relates to the technical field of automotive parts, and more particularly to a stationary device and a motorized device. Background Technology

[0002] Nowadays, with the continuous development of living standards, cars have gradually become one of the important means of transportation for people. In order to avoid the situation where the vehicle cannot move due to a tire puncture, existing car manufacturers usually equip cars with a spare tire at the factory. However, the spare tire is located in the car frame, which is usually fixed to the rear bumper by bolts. This kind of fixing method is not stable when encountering bumps during the car's operation, which can cause the fixing points between the frame and the rear bumper to loosen, resulting in the frame and the spare tire falling off. Summary of the Invention

[0003] This application provides a fixing device and a motorized device to solve the problem that existing spare tire fixing methods are unstable when encountering bumps during vehicle operation, which can lead to the spare tire becoming loose or even falling off.

[0004] In a first aspect, embodiments of this application provide a fixing device, including:

[0005] A first engaging component, the first engaging component including a first engaging portion; and

[0006] A second engaging assembly is disposed adjacent to the first engaging assembly. The second engaging assembly includes a fixing base, a second engaging portion, and a lifting structure. The fixing base has a first mounting groove, and the second engaging portion is disposed within the first mounting groove. The lifting structure passes through the fixing base and the second engaging portion, and the portion of the lifting structure located within the first mounting groove is further provided with an elastic element. The elastic element is disposed circumferentially within the lifting structure.

[0007] The lifting structure can move the second engaging portion relative to the fixed seat, so that the second engaging portion engages with the first engaging portion, or separates the second engaging portion from the first engaging portion.

[0008] In one embodiment, the lifting structure includes a handle, a connector, and a first limiting member. The handle is disposed on the side of the fixed base away from the second engaging portion and is rotatably connected to one end of the connector. The end of the handle near the rotating part is an arc surface or a semi-circular surface. The first limiting member is attached to the side of the second engaging portion away from the fixed base. The connector passes through the fixed base, the second engaging portion, and the first limiting member and is screwed to the second engaging portion and the first limiting member.

[0009] In one embodiment, a second mounting groove is provided at one end of the handle near the rotation point. One end of the connector rotatably connected to the handle is disposed in the second mounting groove. The lifting structure further includes a second limiting member rotatably connected to the handle. The second limiting member is disposed in the second mounting groove and located on the side away from the connector. The second limiting member is rotatable in the second mounting groove and can be displaced in the direction toward the connector and abut against the top of the connector to limit the connector.

[0010] In one embodiment, the handle further comprises a first step portion and a second step portion connected to each other within the second mounting groove. The second mounting groove forms a first receiving space at the top of the first step portion and a second receiving space at the top of the second step portion. The second limiting member includes a rotating portion and a cover plate. The rotating portion is rotatably disposed within the second receiving space, and the cover plate covers the rotating portion, both located within the first and second receiving spaces. When the second limiting member rotates within the second mounting groove and displaces in a direction away from the connecting member, the rotating portion rotates relative to the handle within the second receiving space, and the cover plate displaces towards the first step portion and abuts against the first step portion, making its surface approximately flush with the surface of the handle.

[0011] In one embodiment, the lifting structure further includes a third limiting member disposed in the second mounting groove and located at the bottom of the second limiting member, wherein, in the direction of gravity, the axis of the third limiting member is located between the rotation point of the second limiting member and the rotation point of the handle.

[0012] In one embodiment, the fixing device further includes a support member disposed between the top of the handle and the fixing base.

[0013] In one embodiment, the first engaging portion includes a first connecting end and a first engaging end connected to each other, and the second engaging portion includes a second connecting end and a second engaging end connected to each other. When the fixing device is locked, the second engaging end is engaged with the first engaging end, and the angle between the first engaging end and the first engaging portion is 135° to 145°, and / or the angle between the second engaging end and the second engaging portion is 135° to 145°.

[0014] In one embodiment, the first engaging component further includes at least two fourth limiting members, which are disposed on both sides and / or both ends of the first connecting end to limit the first engaging portion.

[0015] In one embodiment, the fixing device further includes a buffer member disposed on the side of the first engaging assembly away from the second engaging portion.

[0016] Secondly, embodiments of this application also provide a motorized device, including: a fixing device as described in any of the above embodiments.

[0017] The fixing device provided in this application embodiment can be applied to the field of vehicle technology. The fixing device includes a first engaging component and a second engaging component. The first engaging component can be disposed on the vehicle frame, and the second engaging component can be disposed on the rear bumper, thereby achieving the purpose of fixing the vehicle frame to the rear bumper through the engaging connection of the first engaging component and the second engaging component.

[0018] Meanwhile, the first engaging component includes a first engaging portion, and the second engaging component is adjacent to the first engaging component. The second engaging component includes a fixing base, a second engaging portion, and a lifting structure. The fixing base has a first mounting groove, the second engaging portion is disposed within the first mounting groove, and the lifting structure passes through the fixing base and the second engaging portion. The portion of the lifting structure located within the first mounting groove also has an elastic element, which is disposed circumferentially within the lifting structure.

[0019] It is understood that, in the embodiments of this application, when it is necessary to achieve the purpose of fixing the vehicle frame and the rear bumper, an upward lifting force can be applied to the lifting structure to make the lifting structure move upward and drive the second engaging part to move upward relative to the fixed seat. At this time, the second engaging part will move towards the first engaging part and contact the first engaging part to achieve the purpose of fixing the vehicle frame and the rear bumper. Then, an upward lifting force is applied to the lifting structure to make the second engaging part continue to move towards the first engaging part until the two are interference-fitted, thereby achieving the purpose of tight engagement between the two.

[0020] It should be noted that during the upward lifting of the lifting structure, the elastic element located in the first mounting groove will be continuously compressed. After the second engaging part and the first engaging part are interference-fitted and the lifting structure is fixed so that it no longer shifts, the elastic element located in the first mounting groove will apply a restoring force in the direction of the lifting mechanism, thereby driving the lifting structure to continue to shift upward. At the same time, when the lifting structure continues to shift upward, it will also drive the second engaging part to shift towards the first engaging part, thereby further achieving the purpose of tight engagement between the second engaging part and the first engaging part, so as to achieve the purpose of stable and reliable fixation of the frame and the rear bumper in the motor equipment.

[0021] When it is necessary to separate the vehicle frame from the rear bumper, a downward force can be applied to the lifting structure to move it downward and restore the elastic element located in the first mounting groove. As the elastic element restores and the lifting structure continues to move downward, it will cause the second engaging portion to gradually move away from the first engaging portion, gradually separating the second engaging portion from the first engaging portion, thus achieving the separation of the vehicle frame from the rear bumper. Compared to the existing screw connection method, the fixing device provided in this application embodiment can achieve the engagement and unlocking of the vehicle frame and the rear bumper in a simple step, further ensuring greater stability of the vehicle frame when encountering bumps during vehicle operation, and preventing the vehicle frame or spare tire from becoming loose or even falling off. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a partial structural diagram of a motorized device (when a fixed device is mounted on a motorized device) provided in an embodiment of this application.

[0024] Figure 2 for Figure 1 The diagram shows the assembly structure of the chassis and rear bumper in the shown motor vehicle.

[0025] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the motorized equipment along the AA direction.

[0026] Figure 4 for Figure 3 An enlarged structural diagram of part A of the motorized equipment shown.

[0027] Figure 5 This is a schematic diagram illustrating the process of unlocking or locking the second engaging component in the fixing device provided in the embodiments of this application.

[0028] Figure 6 for Figure 5 An enlarged structural diagram of part B of the fixing device shown.

[0029] Figure 7 for Figure 5 The diagram shows the exploded structure of the second engaging component.

[0030] Figure 8 for Figure 1The diagram shows the structure of the first engaging component assembled on the rear bumper in the motorized device shown.

[0031] Figure 9 for Figure 1 The diagram shows the structure of the second engagement assembly mounted on the chassis in the motorized equipment shown.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Fixing device; 110. First engaging assembly; 111. First engaging portion; 1111. First connecting end; 1112. First engaging end; 112. Fourth limiting member; 120. Second engaging assembly; 121. Fixing base; 1211. First mounting groove; 122. Second engaging portion; 1221. Second connecting end; 1222. Second engaging end; 123. Lifting structure; 1231. Handle; 1232. Connecting member; 1233. First limiting member; 1234. Second mounting groove; 1235. Second Limiting component; 12351, Rotating part; 12352, Cover plate; 12353, First part; 12354, Second part; 1236, First step part; 1237, Second step part; 1238, First receiving space; 1239, Second receiving space; 124, Elastic component; 125, Third limiting component; 130, Support component; 140, Buffer component; 151, First pivot; 152, Second pivot; 153, First fixing component; 154, Second fixing component; 210, Frame; 220, Rear bumper. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] Nowadays, with the continuous development of living standards, cars have gradually become one of the important means of transportation for people. In order to avoid the situation where the vehicle cannot move due to a tire puncture, existing car manufacturers usually equip cars with a spare tire at the factory. However, the spare tire is located in the car frame, which is usually fixed to the rear bumper by bolts. This kind of fixing method is not stable when encountering bumps during the car's operation, which can cause the fixing points between the frame and the rear bumper to loosen, resulting in the frame and the spare tire falling off.

[0036] To address the aforementioned technical issues, this application provides a fixing device 100, applicable to the field of vehicle technology. Please refer to... Figure 1 and Figure 2 , Figure 1 This is a partial structural diagram of the motorized equipment (when the fixed device 100 is assembled on the motorized equipment) provided in an embodiment of this application. Figure 2 for Figure 1 A schematic diagram of the assembly structure of the frame 210 and rear bumper 220 in the shown motor equipment.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, the fixing device 100 includes a first engaging component 110 and a second engaging component 120. The first engaging component 110 can be disposed on the vehicle frame 210, and the second engaging component 120 can be disposed on the rear bumper 220. Thus, the vehicle frame 210 is fixed to the rear bumper 220 by the engaging connection of the first engaging component 110 and the second engaging component 120.

[0038] At the same time, please combine Figure 3 and Figure 4 , Figure 3 for Figure 1 The diagram shows a cross-sectional view of the motorized equipment along the AA direction. Figure 4 for Figure 3 An enlarged structural diagram of part A of the motorized equipment shown.

[0039] In the above embodiments, the first engaging component 110 may include a first engaging portion 111, and the second engaging component 120 is disposed adjacent to the first engaging component 110. The second engaging component 120 may include a fixing base 121, a second engaging portion 122, and a lifting structure 123. The fixing base 121 has a first mounting groove 1211, the second engaging portion 122 is disposed within the first mounting groove 1211, and the lifting structure 123 passes through the fixing base 121 and the second engaging portion 122. The portion of the lifting structure 123 located within the first mounting groove 1211 is further provided with an elastic element 124, which is disposed circumferentially on the lifting structure 123.

[0040] It is understood that, in the embodiments of this application, when it is necessary to achieve the purpose of fixing the frame 210 and the rear bumper 220, an upward lifting force can be applied to the lifting structure 123 to make the lifting structure 123 move upward and drive the second engaging part 122 to move upward relative to the fixed seat 121. At this time, the second engaging part 122 will move toward the first engaging part 111 and contact the first engaging part 111 to achieve the purpose of fixing the frame 210 and the rear bumper 220. At this time, an upward lifting force is applied to the lifting structure 123 again so that the second engaging part 122 continues to move toward the first engaging part 111 until the two are interference-fitted, thereby achieving the purpose of tight engagement between the two.

[0041] It should be noted that during the upward lifting of the lifting structure 123, the elastic element 124 located in the first mounting groove 1211 will be continuously compressed. After the second engaging part 122 and the first engaging part 111 are interference-fitted and the lifting structure 123 is fixed so that it no longer moves, the elastic element 124 located in the first mounting groove 1211 will apply a restoring force in the direction of lifting the lifting mechanism, thereby driving the lifting structure 123 to continue to move upward. At the same time, when the lifting structure 123 continues to move upward, it will also drive the second engaging part 122 to move towards the first engaging part 111, thereby further achieving the purpose of tight engagement between the second engaging part 122 and the first engaging part 111, so as to achieve the purpose of stable and reliable fixation of the frame 210 and the rear bumper 220 in the motor vehicle.

[0042] When it is necessary to separate the frame 210 from the rear bumper 220, a downward force can be applied to the lifting structure 123 to move it downward and restore the elastic element 124 located in the first mounting groove 1211. As the elastic element 124 restores and the lifting structure 123 continues to move downward, it will cause the second engaging portion 122 to gradually move away from the first engaging portion 111, gradually separating the second engaging portion 122 from the first engaging portion 111, thus achieving the separation of the frame 210 from the rear bumper 220. Compared to the screw connection method of the prior art, the fixing device 100 provided in this application embodiment can achieve the engagement and unlocking of the frame 210 and the rear bumper 220 in a simple step, further ensuring that the frame 210 is more stable when encountering bumps during vehicle operation, and preventing the frame 210 or spare tire from becoming loose or even falling off.

[0043] It should be noted that the elastic element 124 in the embodiments of this application can be a spring or rubber or other elastic component, and can be adjusted according to the actual situation, which is not limited here.

[0044] Please combine Figure 4 And see Figures 5-7 , Figure 5 This is a schematic diagram illustrating the process of unlocking or locking the second engaging component 120 in the fixing device 100 provided in this application embodiment. Figure 6 for Figure 5 The enlarged structural schematic diagram of part B of the fixing device 100 shown is shown. Figure 7 for Figure 5 The exploded structure diagram of the second engaging assembly 120 is shown.

[0045] In some embodiments, such as Figures 4-7As shown, the lifting structure 123 may include a handle 1231, a connector 1232, and a first limiting member 1233. The handle 1231 is disposed on the side of the fixed base 121 away from the second engaging portion 122 and is rotatably connected to one end of the connector 1232. Meanwhile, the first limiting member 1233 is attached to the side of the second engaging portion 122 away from the fixed base 121. The connector 1232 passes through the fixed base 121, the second engaging portion 122, and the first limiting member 1233, and is screwed to the second engaging portion 122 and the first limiting member 1233.

[0046] In addition, such as Figures 4-7 As shown, in the above embodiment, the end of the handle 1231 near the rotation point can also be an arc surface or a semi-circular surface, so that when the handle 1231 is rotated, the arc-shaped end or the semi-circular end of the handle 1231 will contact the top of the fixed base 121 one by one, so as to achieve the purpose of driving the connecting member 1232 to move up and down.

[0047] It is understandable that, such as Figure 4 As shown, in another embodiment of this application, the fixing device 100 may further include a support member 130, which is disposed between the top of the handle 1231 and the top of the fixing base 121, thereby preventing wear between the arc-shaped end or semi-circular end of the handle 1231 and the top of the fixing base 121. Meanwhile, the support member 130 may be made of an elastic material such as rubber or sponge.

[0048] In some embodiments, such as Figure 5 and Figure 6 As shown, a second mounting groove 1234 may be provided at one end of the handle 1231 near the rotation point. The lifting structure 123 may also include a second limiting member 1235 rotatably connected to the handle 1231. The second limiting member 1235 is disposed in the second mounting groove 1234 and located on the side away from the connector 1232. Both the second limiting member 1235 and the end of the connector 1232 rotatably connected to the handle 1231 may be disposed in the second mounting groove 1234. The fixing device 100 may include a first rotating shaft 151 and a second rotating shaft 152. The first rotating shaft 151 passes through the handle 1231 and the connector 1232 to achieve the purpose of rotating the handle 1231. The second rotating shaft 152 passes through the handle 1231 and the second limiting member 1235 to achieve the purpose of rotating the second limiting member 1235 in the second mounting groove 1234.

[0049] Please continue reading Figure 5 and Figure 6In the above embodiment, after the vehicle frame 210 and rear bumper 220 are fixed, the second limiting member 1235 can be rotated within the second mounting groove 1234 and displaced towards the connector 1232, abutting against the top of the connector 1232, thereby achieving the limiting effect of the connector 1232. It is understood that when the second limiting member 1235 abuts against the connector 1232, since the connector 1232 is limited in the direction of gravity, the handle 1231 cannot rotate, further ensuring that the vehicle frame 210 is more stable when encountering bumps during vehicle operation, preventing the vehicle frame 210 or spare tire from becoming loose or even falling off.

[0050] Furthermore, such as Figure 6 As shown, the handle 1231 may also have a first step portion 1236 and a second step portion 1237 connected to each other within the second mounting groove 1234. The second mounting groove 1234 has a first receiving space 1238 formed at the top of the first step portion 1236 and a second receiving space 1239 formed at the top of the second step portion 1237. Meanwhile, the second limiting member 1235 includes a rotating portion 12351 and a cover plate 12352. The rotating portion 12351 is rotatably disposed within the second receiving space 1239, and the cover plate 12352 covers the rotating portion 12351. Both are located in the first receiving space 1238 and the second receiving space 1239. When the second limiting member 1235 rotates in the second mounting groove 1234 and moves away from the connector 1232, the rotating part 12351 rotates relative to the handle 1231 in the second receiving space 1239. The cover plate 12352 moves towards the first step part 1236 and abuts against the first step part 1236, making its surface approximately flush with the surface of the handle 1231. This makes the hand grip better when the handle 1231 is rotated to unlock the first engaging part 111 and the second engaging part 122.

[0051] It is understood that, in the above embodiments, the cover plate 12352 may include, for example, Figure 6 The first part 12353 and the second part 12354 shown are interconnected. When the cover plate 12352 is displaced toward the first step 1236 and abuts against the first step 1236, the first part 12353 may be flush with the surface of the handle 1231, the second part 12354 may be flush with the surface of the handle 1231, or both the first part 12353 and the second part 12354 may be flush with the surface of the handle 1231.

[0052] In some embodiments, such as Figure 6As shown, the lifting structure 123 may also include a third limiting member 125. The third limiting member 125 is disposed in the second mounting groove 1234 and located at the bottom of the second limiting member 1235, thereby achieving the limiting effect of the second limiting member 1235. In the direction of gravity, the axis of the third limiting member 125 is located between the first rotating shaft 151 and the second rotating shaft 152, so that when the second limiting member 1235 rotates in the second mounting groove 1234, it can be displaced in the direction toward the connector 1232 and abut against the top of the connector 1232, thereby achieving the limiting effect of the connector 1232.

[0053] In some embodiments, such as Figure 4 As shown, the first engaging portion 111 may include a first connecting end 1111 and a first engaging end 1112 connected to each other, and the second engaging portion 122 may also include a second connecting end 1221 and a second engaging end 1222 connected to each other. When the fixing device 100 is locked, the second engaging end 1222 is engaged with the first engaging end 1112, and the angle between the first engaging end 1112 and the first engaging portion 111 is 135° to 145°, or the angle between the second engaging end 1222 and the second engaging portion 122 is 135° to 145°, thereby achieving a better engagement between the frame 210 and the rear bumper 220, further ensuring that the frame 210 is more stable when encountering bumps during vehicle operation, and avoiding the situation where the frame 210 or the spare tire becomes loose or even falls off.

[0054] It is understood that in other embodiments of this application, the angle between the first engaging end 1112 and the first engaging portion 111 and the angle between the second engaging end 1222 and the second engaging portion 122 can both be set to 135° to 145°.

[0055] Please see Figure 8 , Figure 8 for Figure 1 The diagram shows a schematic of the first engaging assembly 110 mounted on the rear bumper 220 in the motor vehicle. In some embodiments, the first engaging assembly 110 may further include at least two fourth limiting members 112, which are disposed on both sides and / or both ends of the first connecting end 1111, thereby limiting the first engaging portion 111 and preventing it from loosening and becoming dislodged, which would result in the second engaging portion 122 being unable to engage with the first engaging portion 111.

[0056] At the same time, such as Figure 8As shown, in other embodiments of this application, at least two fourth limiting members 112 can be fixed to the rear bumper 220 by the first fixing member 153, and the first engaging part 111 can be fixed to the rear bumper 220 by the cooperation of the first fixing member 153 and the second fixing member 154. It should be noted that the first fixing member 153 can be a bolted device such as a bolt or screw, and the second fixing member 154 can be a fixing device 100 with a helical groove such as a nut.

[0057] Please see Figure 9 , Figure 9 for Figure 1 The diagram shows a schematic of the second engaging assembly 120 mounted on the frame 210 in the motorized device. In some embodiments, the fixing device 100 may further include a buffer 140, which is disposed on the side of the first engaging assembly 110 away from the second engaging portion 122. This buffer 140 provides cushioning and shock absorption to the first engaging portion 111 when the second engaging portion 122 engages with the first engaging portion 111 and there is an interference fit between them, thus preventing damage to the frame 210. It is understood that the buffer 140 in this embodiment may be a cushioning component such as sponge or rubber.

[0058] This application also provides a motorized device, including the fixed device 100 mentioned in any of the above embodiments. It is understood that the motorized device provided in this embodiment can be a motor vehicle such as a pickup truck or a car, or a motorized vessel such as a ship or a yacht. That is, as long as it includes the fixed device 100 mentioned above, it can be included within the scope of protection of this application.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0061] The foregoing has provided a detailed description of the fixing device and motorized equipment provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A fixture, characterized in that include: A first engaging assembly is used to be mounted on a vehicle frame, and the first engaging assembly includes a first engaging portion; as well as The second engaging component is disposed on the rear bumper, adjacent to the first engaging component. The second engaging component includes a fixed base, a second engaging portion, and a lifting structure. The fixed base has a first mounting groove, and the second engaging portion is disposed in the first mounting groove. The lifting structure passes through the fixed base and the second engaging portion, and the portion of the lifting structure located in the first mounting groove is further provided with an elastic element. The elastic element is disposed circumferentially on the lifting structure. The lifting structure can drive the second engaging portion to move relative to the fixed base, so that the second engaging portion engages with the first engaging portion, or separates the second engaging portion from the first engaging portion. The lifting structure includes a handle, a connector, and a first limiting member. The handle is located on the side of the fixed base away from the second engaging portion and is rotatably connected to one end of the connector. The end of the handle near the rotating part is an arc surface or a semi-circular surface. The first limiting member is attached to the side of the second engaging portion away from the fixed base. The connector passes through the fixed base, the second engaging portion, and the first limiting member and is screwed to the second engaging portion and the first limiting member. The handle has a second mounting groove at one end near the rotation point. The connector is rotatably connected to one end of the handle and is disposed in the second mounting groove. The lifting structure also includes a second limiting member rotatably connected to the handle. The second limiting member is disposed in the second mounting groove and located on the side away from the connector. The second limiting member can rotate in the second mounting groove and move in the direction toward the connector and abut against the top of the connector to limit the connector. The handle also has a first step and a second step connected to each other in the second mounting groove. The second mounting groove has a first receiving space at the top of the first step and a second receiving space at the top of the second step. The second limiting member includes a rotating part and a cover plate. The rotating part is rotatably disposed in the second receiving space, and the cover plate covers the rotating part. Both are located in the first receiving space and the second receiving space. When the second limiting member rotates in the second mounting groove and moves away from the connecting member, the rotating part rotates relative to the handle in the second receiving space, and the cover plate moves towards the first step and abuts against the first step, making its surface approximately flush with the surface of the handle.

2. The fixture of claim 1, wherein The lifting structure further includes a third limiting member, which is disposed in the second mounting groove and located at the bottom of the second limiting member. In the direction of gravity, the axis of the third limiting member is located between the rotation point of the second limiting member and the rotation point of the handle.

3. The fixture of claim 1, wherein The fixing device further includes a support member disposed between the top of the handle and the fixing base.

4. The fixture of claim 1, wherein The first engaging portion includes a first connecting end and a first engaging end that are connected to each other, and the second engaging portion includes a second connecting end and a second engaging end that are connected to each other. When the fixing device is locked, the second engaging end is engaged with the first engaging end, and the angle between the first engaging end and the first engaging portion is 135°~145°, and / or the angle between the second engaging end and the second engaging portion is 135°~145°.

5. The fixture of claim 4, wherein The first engaging component further includes at least two fourth limiting members, which are disposed on both sides of the first connecting end and / or at both ends of the first connecting end to limit the first engaging portion.

6. The fixing device according to any one of claims 1-5, characterized in that, The fixing device further includes a buffer member, which is disposed on the side of the first engaging assembly away from the second engaging portion.

7. A motorized device characterized by, Includes the fixing device as described in any one of claims 1-6.

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