Circuit breaker transfer trolley

Abstract

The utility model discloses a circuit breaker transfer trolley, which is applied to maintenance transfer of a switch cabinet circuit breaker and comprises a frame, a lifting assembly, a tray assembly and an adjusting structure, the lifting assembly comprises a bearing frame, a moving frame and a driving module, and the tray assembly is detachably connected with the moving frame and can move along with the moving frame. The tray assembly comprises a bearing part and an anti-mistaken-touch locking structure arranged at the bottom of the bearing part, the bearing part is used for placing a target circuit breaker, the anti-mistaken-touch locking structure comprises a lock hook, the lock hook can be connected with a switch cabinet in a matched mode when the circuit breaker transfer trolley is in butt joint with the switch cabinet, and the adjusting structure can adjust the position of the moving frame. Therefore, when the circuit breaker transfer trolley is in a butt joint state with the switch cabinet, the bearing part is horizontally aligned with the switch cabinet. According to the technical scheme, the horizontal alignment degree of the transfer trolley and the switch cabinet is improved, the transfer trolley is prevented from toppling after loading the circuit breaker, and the circuit breaker is prevented from falling off in the butt joint process through the mistaken-touch-preventing locking structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to substation technical field, especially a circuit breaker transfer trolley. BACKGROUND

[0002] In the daily maintenance and installation process of the switch cabinet of the substation, the circuit breaker needs to be frequently disassembled and transferred. Since the circuit breaker itself is heavy and the installation position is often high, if only relying on manpower to carry, not only the efficiency is low, but also the safety accidents are prone to occur, and the whole process has safety hazards. In the prior art, the circuit breaker is generally transferred by a transfer tool, but the transfer tool may fall off during the transfer process due to misalignment of the transfer tool and the switch cabinet, and in the process of manually pulling out the circuit breaker, the transfer tool may be separated from the switch cabinet, and there is a risk of the circuit breaker falling to the ground. SUMMARY

[0003] The circuit breaker transfer trolley provided by the utility model embodiment can be beneficial to improve the horizontal alignment degree of the transfer trolley and the switch cabinet, avoid the transfer trolley from falling after loading the circuit breaker, and prevent the mistaken touch locking structure from falling off during the docking process.

[0004] The utility model embodiment provides a circuit breaker transfer trolley, be applied to switch cabinet circuit breaker overhauls transfer, circuit breaker transfer trolley includes: frame, lifting assembly, tray assembly and adjusting structure. Lifting assembly sets up in frame, and lifting assembly includes bearing frame, moving frame and drive module. Drive module can drive bearing frame to move up and down along frame, and moving frame sets up on bearing frame and moves along with bearing frame. Tray assembly is detachably connected with moving frame and can move along with moving frame, and tray assembly includes bearing part and the anti-mistaken touch locking structure that sets up in bearing part bottom, bearing part is used for placing target circuit breaker, and the anti-mistaken touch locking structure includes lock hook, under the state that circuit breaker transfer trolley and switch cabinet are docked, lock hook can be connected with switch cabinet. Adjusting structure can adjust the position of moving frame, so that under the state that circuit breaker transfer trolley and switch cabinet are docked, bearing part and switch cabinet are horizontally aligned.

[0005] This invention features an anti-accidental contact locking structure at the bottom of the support section. When the circuit breaker transport cart is docked with the switchgear, the locking hook engages with the switchgear, preventing the transport cart from reversing during manual removal of the circuit breaker and thus avoiding the circuit breaker falling. An adjustment structure at the bottom of the mobile frame allows for manual fine-tuning of the frame's height, ensuring the support section is horizontally aligned with the switchgear when the circuit breaker transport cart is docked, further preventing the circuit breaker from falling. The tray assembly is detachable from the mobile frame, facilitating the replacement of different tray assemblies for different models or sizes of circuit breakers, improving operational flexibility. This invention achieves smooth lifting and lowering of the circuit breaker and allows for fine adjustments in both horizontal and vertical directions via the adjustment structure, while the anti-accidental contact locking structure ensures safety during transport and installation.

[0006] According to the aforementioned embodiments of this utility model, the support frame includes: a first frame body, which is capable of moving up and down along the vehicle frame. The lifting assembly further includes: a guide module, which is symmetrically arranged on opposite sides of the vehicle frame. The guide module includes: a second frame body, a first guide rod, a lead screw, and a buffer. The second frame body is connected to the vehicle frame. The first guide rod is disposed on the second frame body, and the drive module is capable of driving the first frame body to move up and down along the first guide rod. The lead screw is disposed on the second frame body and is connected to the drive module for transmission. The buffer is disposed on the second frame body and can provide cushioning for the descent of the support frame. The technical solution of this utility model, by setting a guide module, is beneficial to improving the stability of the lifting process of the support frame.

[0007] According to the aforementioned embodiments of this utility model, the drive module includes a drive unit and a transmission assembly, with the drive unit mounted on the vehicle frame. The transmission assembly includes a synchronous pulley, a synchronous belt, and an idler pulley. The synchronous pulley and the synchronous belt are connected by a drive mechanism, and the lead screw is connected to the synchronous pulley by a drive mechanism. The synchronous pulley includes a manual lever. Either the drive unit or the manual lever can drive the synchronous pulley to rotate, thereby sequentially driving the synchronous belt and the lead screw to move. The idler pulleys are located on both sides of the synchronous belt to adjust its tension. This utility model's technical solution, by setting a manual lever on the synchronous pulley, allows for emergency operation when the drive unit is powered off, by manually rotating the manual lever to move the synchronous pulley and the synchronous belt.

[0008] According to the aforementioned embodiments of this utility model, the mobile frame includes a third frame body, and the adjustment structure includes multiple wheels evenly distributed at the bottom of the third frame body. Rotating the wheels adjusts the height of the mobile frame in the corresponding area, ensuring that the bearing plane of the mobile frame remains horizontal. This utility model's technical solution, by using multiple wheels, allows for height adjustment of the mobile frame in the corresponding area, keeping the bearing plane of the mobile frame horizontal. When the circuit breaker transfer vehicle is docked with the switchgear, the support part is horizontally aligned with the switchgear, preventing the circuit breaker from falling and improving safety.

[0009] According to the aforementioned embodiments of this utility model, the adjustment structure further includes an adjustment rod, a manual operating part, and an adjustment component. The adjustment rod is disposed on the first frame, and the manual operating part is disposed on one side of the first frame and is connected to the adjustment rod in a transmission manner. The adjustment component is disposed at the bottom of the third frame and is connected to the adjustment rod in cooperation. The manual operating part drives the adjustment rod to rotate, thereby causing the adjustment component to move along the axial direction of the adjustment rod, so that the moving frame can be displaced within a preset range in the horizontal direction. This utility model's technical solution, by setting an adjustment rod, a manual operating part, and an adjustment component, and by using the manual operating part to drive the adjustment rod to rotate, thereby causing the adjustment component to move along the axial direction of the adjustment rod, allows the moving frame to be displaced within a preset range in the horizontal direction, improving the accuracy of the circuit breaker transfer vehicle docking with the switchgear, preventing the circuit breaker from falling, and improving safety.

[0010] According to the aforementioned embodiments of the present invention, the first frame further includes a second guide rod, and the third frame further includes rollers. The rollers can slide along the second guide rod, so that the movable frame can move relative to the support frame in the horizontal direction.

[0011] According to the aforementioned embodiments of this utility model, the anti-accidental contact locking structure further includes: a pull rod, a pulling part, and an elastic element. The pull rod includes a first part and a second part that are movably connected, with a locking hook disposed at one end of the second part, and an adjustable angle between the first part and the second part. The pulling part is disposed at the end of the first part away from the locking hook. When an external force is applied to the pulling part, the pulling part causes the first part to move, thereby causing the second part to move, so that the locking hook disengages from the switch cabinet. One end of the elastic element is connected to the bottom of the support part, and the other end is elastically connected to the pull rod, providing elastic restoring force to the pull rod. This utility model's technical solution, by setting a pull rod and a pulling part, prevents the transfer vehicle from reversing during the process of manually pulling the circuit breaker out of the switch cabinet, avoiding the circuit breaker from falling, and improving the safety of use.

[0012] According to the aforementioned embodiments of this utility model, one side of the supporting part includes a guide groove for the first part to move. The pulling part can drive the first part to move along the guide groove, thereby causing the first part to be displaced in the first and second directions. This utility model's technical solution, by setting a guide groove, requires the pulling part to move the first part along the guide groove during unlocking, thereby causing the first part to be displaced in the first and second directions. This improves the stability of the lock hook's connection with the switch cabinet, avoids accidental contact that could cause the lock hook to separate from the switch cabinet, and further enhances safety.

[0013] According to the aforementioned embodiments of this utility model, the third frame includes a positioning pin, and the supporting part near the third frame includes a positioning groove that matches and connects with the positioning pin. The positioning groove has a guide slope, and the positioning pin can move along the guide slope to separate from the positioning groove. This utility model's technical solution, by providing a positioning pin and a positioning groove, allows for a detachable connection between the supporting part and the mobile frame, facilitating the removal of the supporting part from the mobile frame when it is placed on the ground, thus improving operational efficiency.

[0014] According to the aforementioned embodiments of this utility model, the frame includes a protective cover, which is disposed outside the transmission assembly. By providing a protective cover outside the transmission assembly, this utility model helps prevent user clothing or other foreign objects from being caught in the transmission assembly during use, thus protecting the transmission assembly and improving operational stability.

[0015] This utility model's technical solution incorporates an adjustment structure, adjustment rod, manual operating part, and adjustment components at the bottom of the mobile frame. This allows the mobile frame to shift within a preset horizontal range. The adjustment structure enables manual fine-tuning of the mobile frame's height, ensuring that the support part is horizontally aligned with the switchgear when the circuit breaker transfer cart is docked. This improves the accuracy of docking, prevents the circuit breaker from falling, and enhances safety. The installation of positioning pins and slots allows for detachable connection between the support part and the mobile frame, facilitating removal of the support part when the mobile frame is on the ground, thus improving operational efficiency. An anti-accidental contact locking structure prevents the transfer cart from reversing during manual removal of the circuit breaker from the switchgear, preventing the circuit breaker from falling and improving safety. A manual operating lever on the synchronous pulley allows for emergency operation by manually rotating the lever to move the synchronous pulley and belt in the event of a power outage. This simple and convenient operation makes the process easy and straightforward. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the circuit breaker transfer vehicle of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly of the pallet assembly in one embodiment of the circuit breaker transfer vehicle of this utility model;

[0019] Figure 3 This is an exploded structural diagram of an embodiment of the circuit breaker transfer vehicle of this utility model;

[0020] Figure 4 This is a schematic diagram of the pallet assembly in one embodiment of the circuit breaker transfer vehicle of this utility model;

[0021] Figure 5 This is a schematic diagram of the pallet assembly in another embodiment of the circuit breaker transfer vehicle of this utility model;

[0022] Figure 6 This is a schematic diagram of the initial state of the anti-accidental contact locking structure in one embodiment of the circuit breaker transfer vehicle of this utility model;

[0023] Figure 7 This is a schematic diagram of the unlocked state of the anti-accidental contact locking structure in one embodiment of the circuit breaker transfer vehicle of this utility model;

[0024] Figure 8 This is a schematic diagram of the transmission assembly in one embodiment of the circuit breaker transfer vehicle of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of a circuit breaker transfer vehicle of this utility model docking with a switchgear;

[0026] Figure 10 This is a schematic diagram of the circuit breaker being pulled out.

[0027] Explanation of icon numbers:

[0028] Circuit breaker transport vehicle-100, circuit breaker-200, switch cabinet-300;

[0029] Chassis - 110, Lifting assembly - 120, Pallet assembly - 130, Adjustment structure - 140;

[0030] Protective cover-111, load-bearing wheel-112, power supply-113, support frame-121, moving frame-122, drive module-123, guide module-124, support part-131, anti-accidental contact locking structure-132, wheel-141, adjusting rod-142, manual operation part-143;

[0031] First frame - 1211, second guide rod - 1212, linear bearing - 1213, connector - 1214, third frame - 1221, roller - 1222, positioning pin - 1223, drive unit - 1231, synchronous pulley - 1232, synchronous belt - 1233, idler pulley - 1234, second frame - 1241, first guide rod - 1242, lead screw - 1243, buffer - 1244, guide groove - 1311, positioning groove - 1312, pin - 1313, locking hook 1321-1321, pull rod - 1322, pulling part - 1323, elastic element - 1324;

[0032] Part 1 - S1, Part 2 - S2, Angle - S3, Guide sloping surface - S4, Hand lever - S5.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0037] This utility model provides a circuit breaker transfer vehicle, which can improve the horizontal alignment between the transfer vehicle and the switch cabinet, prevent the transfer vehicle from tipping over after loading the circuit breaker, and the anti-accidental contact locking structure helps to prevent the circuit breaker from falling off during the docking process.

[0038] like Figures 1 to 3 As shown, this utility model embodiment provides a circuit breaker transfer vehicle 100, which is used for the maintenance and transfer of circuit breakers 200 in switch cabinet 300. The transfer vehicle 100 includes: a frame 110, a lifting assembly 120, a tray assembly 130, and an adjustment structure 140.

[0039] like Figures 1 to 3As shown, the lifting assembly 120 is mounted on the vehicle frame 110. The lifting assembly 120 includes a support frame 121, a movable frame 122, and a drive module 123. The drive module 123 can drive the support frame 121 to move up and down along the vehicle frame 110. The movable frame 122 is mounted on the support frame 121 and moves with the support frame 121.

[0040] like Figure 2 As shown, the tray assembly 130 is detachably connected to the mobile frame 122 and can move with the mobile frame 122. The tray assembly 130 includes a support part 131 and an anti-accidental contact locking structure 132 disposed at the bottom of the support part 131. The support part 131 is used to place the target circuit breaker 200. The anti-accidental contact locking structure 132 includes a locking hook 1321. When the transfer vehicle 100 is docked with the switch cabinet 300, the locking hook 1321 can be matched and connected with the switch cabinet 300.

[0041] like Figure 3 As shown, the adjustment structure 140 can adjust the position of the moving frame 122 so that when the transfer car 100 is docked with the switch cabinet 300, the support part 131 is horizontally aligned with the switch cabinet 300.

[0042] This utility model's technical solution incorporates an anti-accidental contact locking structure 132 at the bottom of the support portion 131. When the transfer cart 100 is docked with the switch cabinet 300, the locking hook 1321 can connect with the switch cabinet 300, preventing the transfer cart 100 from reversing during manual removal of the circuit breaker 200 from the switch cabinet 300 and thus avoiding the circuit breaker 200 falling. Furthermore, an adjustment structure 140 is provided at the bottom of the movable frame 122, allowing for manual fine-tuning of the frame's height. This ensures that when the transfer cart 100 is docked with the switch cabinet 300, the support portion 131 is horizontally aligned with the switch cabinet 300, preventing the circuit breaker 200 from falling.

[0043] like Figure 2 As shown, the tray assembly 130 is detachable from the movable frame 122, allowing the user to replace different tray assemblies 130 according to different models or sizes of circuit breakers 200, thus improving the flexibility of use. Preferably, as Figures 4 to 5 As shown, the tray assembly 130 has two interchangeable structures of different widths to accommodate two specifications of 10kV circuit breakers 200. The position and angle of the moving frame 122 can be flexibly fine-tuned by adjusting the structure 140, enabling the transfer vehicle 100 to safely and efficiently complete the transfer of multiple models of circuit breakers 200. It is understood that, to ensure the stability of the circuit breaker 200, reinforcing ribs, limiting blocks, and other structures can be arranged at the bottom of the support part 131.

[0044] This utility model's technical solution can achieve smooth lifting and lowering of the circuit breaker 200, and can also make fine adjustments in the horizontal and vertical directions through the adjustment structure 140, and together with the anti-accidental contact locking structure 132, ensure the safety of the transportation and installation process.

[0045] In this embodiment, the frame 110 is welded from multiple square steel tubes, forming an overall frame structure that provides sufficient strength and stability. The bottom of the frame 110 is equipped with several load-bearing wheels 112 or casters to facilitate the free movement of the transport vehicle 100 on site. A power supply 113 is installed on the frame 110 to power the drive module 123.

[0046] like Figure 3 As shown, the support frame 121 includes: a first frame 1211, which is capable of moving up and down along the vehicle frame 110. For example... Figures 1 to 3 As shown, the lifting assembly 120 further includes a guide module 124, which is symmetrically arranged on opposite sides of the frame 110. The guide module 124 includes a second frame 1241, a first guide rod 1242, a lead screw 1243, and a buffer 1244. The second frame 1241 is connected to the frame 110. The first guide rod 1242 is disposed on the second frame 1241, and the drive module 123 can drive the first frame 1241 to move up and down along the first guide rod 1242. The lead screw 1243 is disposed on the second frame 1241 and is connected to the drive module 123 for transmission. The buffer 1244 is disposed on the second frame 1241 and can limit the maximum stroke of the support frame 121 during lifting and lowering, and can provide cushioning for the landing of the support frame 121 to avoid mechanical impact. The present invention, by setting the guide module 124, helps to improve the stability of the lifting process of the support frame 121.

[0047] like Figure 3 As shown, the drive module 123 includes a drive unit 1231 and a transmission assembly. The drive unit 1231 is mounted on the frame 110. The transmission assembly includes a timing pulley 1232, a timing belt 1233, and an idler pulley 1234. The timing pulley 1232 and the timing belt 1233 are connected in a driving relationship, and the lead screw 1243 is connected in a driving relationship with the timing pulley 1232. Figure 8 As shown, the synchronous pulley 1232 includes a manual lever S5. Either the drive unit 1231 or the manual lever S5 can drive the synchronous pulley 1232 to rotate, thereby sequentially driving the synchronous belt 1233 and the lead screw 1243 to move. Idler pulleys 1234 are disposed on both sides of the synchronous belt 1233 to adjust the tension of the synchronous belt 1233. This utility model's technical solution, by setting a manual lever S5 on the synchronous pulley 1232, allows for emergency operation when the drive unit 1231 is powered off, by manually rotating the manual lever S5 to drive the synchronous pulley 1232 and the synchronous belt 1233.

[0048] In this embodiment, a drive unit 1231 drives the symmetrical transmission components and guide modules 124 on both sides of the frame 110 to move in two separate ways, so that the lifting components 120 rise and fall synchronously on both sides, effectively reducing the risk of overturning caused by the shift of the center of gravity.

[0049] In this embodiment, when the drive unit 1231 is powered off or has insufficient power, the synchronous pulley 1232 and the synchronous belt 1233 can be driven by the wrench to drive the lever S5 to move, so as to realize emergency manual operation of lifting and lowering, and ensure that normal operation can still be carried out under power failure conditions.

[0050] like Figure 2 As shown, the support frame 121 also includes a linear bearing 1213 and a connector 1214. The linear bearing 1213 is disposed at the connection between the first frame 1211 and the first guide rod 1242, and the connector 1214 is disposed at the connection between the first frame 1211 and the lead screw 1243. In this embodiment, the transmission assembly is hidden inside the square tube and is offset from the first guide rod 1242 to ensure that the multiple linear bearings 1213 are on the same horizontal plane, thereby ensuring the smoothness of the lifting process.

[0051] like Figure 3 As shown, the movable frame 122 includes a third frame 1221, and the adjustment structure 140 includes multiple discs 141. The discs 141 are evenly distributed at the bottom of the third frame 1221. Rotating the discs 141 adjusts the height of the movable frame 122 in the corresponding area, ensuring the bearing plane of the movable frame 122 remains horizontal. This invention, by using multiple discs 141, allows for height adjustment of the movable frame 122 in the corresponding area when the transfer vehicle 100 is docked with the switch cabinet 300. This ensures the support part 131 is horizontally aligned with the switch cabinet 300, preventing the circuit breaker 200 from falling and improving safety. Preferably, four independently rotatable discs 141 are evenly distributed at the four corners of the bottom of the third frame 1221. The height of each corner is adjusted by threads to ensure the movable frame 122 and the tray assembly 130 are horizontally aligned with the switch cabinet 300.

[0052] The adjustment structure 140 also includes an adjustment rod 142, a manual operation unit 143, and an adjustment component (not shown). The adjustment rod 142 is disposed on the first frame 1211, and the manual operation unit 143 is disposed on one side of the first frame 1211 and is connected to the adjustment rod 142 in a transmission manner. The adjustment component is disposed at the bottom of the third frame 1221 and is connected to the adjustment rod 142 in cooperation. The manual operation unit 143 drives the adjustment rod 142 to rotate, thereby causing the adjustment component to move along the axial direction of the adjustment rod 142, so that the moving frame 122 is displaced within a preset range in the horizontal direction. This utility model's technical solution, by setting an adjusting rod 142, a manual operation unit 143, and an adjusting component, allows the adjusting rod 142 to rotate via the manual operation unit 143. The thread of the adjusting component engages with the external thread on the adjusting rod 142, thereby causing the adjusting component to move axially along the adjusting rod 142. This converts the rotational motion into linear displacement of the moving frame 122, enabling the moving frame 122 to move within a preset range in the horizontal direction. This improves the accuracy of docking between the transfer vehicle 100 and the switch cabinet 300, prevents the circuit breaker 200 from falling, and enhances safety.

[0053] like Figure 3 As shown, the first frame 1211 also includes a second guide rod 1212, and the third frame 1221 also includes a roller 1222. The roller 1222 can slide along the second guide rod 1212, so that the movable frame 122 can slide smoothly relative to the support frame 121 in the horizontal direction. The sliding range can be set according to actual needs. In this embodiment, the movable frame 122 has a left and right movement range of 10cm, and the tray assembly 130 moves synchronously with the movement of the movable frame 122.

[0054] like Figures 6 to 7As shown, the anti-accidental contact locking structure 132 further includes: a pull rod 1322, a pulling part 1323, and an elastic element 1324. The pull rod 1322 includes a first part S1 and a second part S2 that are movably connected. A locking hook 1321 is disposed at one end of the second part S2, and an adjustable angle S3 exists between the first part S1 and the second part S2. The pulling part 1323 is disposed at the end of the first part S1 away from the locking hook 1321. When an external force is applied to the pulling part 1323, the pulling part 1323 causes the first part S1 to displace, thereby causing the second part S2 to move, so that the locking hook 1321 disengages from the switch cabinet 300. One end of the elastic element 1324 is connected to the bottom of the support part 131, and the other end is elastically connected to the pull rod 1322, providing elastic restoring force to the pull rod 1322. Preferably, the elastic element 1324 includes two tension springs, respectively connected to the first part S1 and the second part S2. The present invention provides a pull rod 1322 and a pulling part 1323 to prevent the transfer vehicle 100 from backing up during the process of manually pulling the circuit breaker 200 out of the switch cabinet 300, thereby avoiding the circuit breaker 200 from falling and improving the safety of use.

[0055] like Figures 6 to 7 As shown, the supporting part 131 includes a guide groove 1311 on one side for the first part S1 to move. The pulling part 1323 can drive the first part S1 to move along the guide groove 1311, thereby causing the first part S1 to be displaced in a first direction (along the axial direction of the pull rod) and a second direction (along the radial direction of the pull rod). This utility model's technical solution, by setting the guide groove 1311, requires the pulling part 1323 to drive the first part S1 to move along the guide groove 1311 during unlocking, thereby causing the first part S1 to be displaced in the first and second directions. This improves the stability of the locking hook 1321's docking with the switch cabinet 300, avoids accidental separation of the locking hook 1321 from the switch cabinet 300 due to misoperation or collision, and further enhances safety.

[0056] like Figure 6 As shown, in the initial state, the tension of the elastic element 1324 forces the locking hook 1321 to remain in the hooked state. When docking with the switch cabinet 300 is required, the locking hook 1321 pushes into the slot of the switch cabinet 300 to complete the docking. Since the pull rod 1322 includes a movable first part S1 and a second part S2, and there is an adjustable included angle S3 between the first part S1 and the second part S2, if the pulling part 1323 is accidentally touched, it will not affect the docking of the locking hook 1321 with the switch cabinet 300. This prevents the transfer cart 100 from backing up during the process of manually pulling the circuit breaker 200 out of the switch cabinet 300, avoids the circuit breaker 200 from falling, and improves the safety of use.

[0057] like Figure 7As shown, when unlocking is required, the pulling part 1323 is first pulled outward, and then the pulling part 1323 is moved along the guide groove 1311 by a preset angle. The pulling part 1323 drives the first part S1 to move, and the first part S1 in turn drives the second part S2 to move. The second part S2 is displaced, which drives the locking hook 1321 to overcome the elastic force of the elastic element 1324, thereby disengaging it from the slot of the switch cabinet 300. That is, during the unlocking process, the unlocking path of the pulling part 1323 is restricted to an "L" shaped trajectory, including an outward pulling segment and a lateral movement segment. The locking hook 1321 can only be fully unlocked after two consecutive actions are completed by applying forces in different directions. The dual-action unlocking mechanism helps to avoid accidental unlocking caused by single-step misoperation.

[0058] Preferably, such as Figure 8 As shown, the support part 131 is also provided with a pin 1313 on the side near the switch cabinet 300. When the transfer car 100 docks with the switch cabinet 300, the pin 1313 connects with the switch cabinet 300, further improving the stability of the docking.

[0059] like Figure 3 as well as Figures 6 to 7 As shown, the third frame 1221 includes a positioning pin 1223. The supporting part 131 near the third frame 1221 includes a positioning groove 1312 that matches and connects with the positioning pin 1223. The positioning groove 1312 has a guide slope S4. After the positioning pin 1223 is inserted into the positioning groove 1312, it automatically locks. When disassembling, it slides out along the guide slope S4 to separate from the positioning groove 1312. The present invention provides a detachable connection between the supporting part 131 and the movable frame 122 by setting the positioning pin 1223 and the positioning groove 1312. In this embodiment, the lifting assembly 120 can be lowered to the ground, and the supporting part 131 can also be lowered to the ground and moved out independently. By setting the guide slope S4, it is convenient to disassemble the supporting part 131 from the movable frame 122 when the movable frame 122 is landed, thereby improving the operating efficiency.

[0060] like Figures 1 to 3 As shown, the frame 110 includes a protective cover 111, which is disposed outside the transmission assembly. This utility model's technical solution, by providing the protective cover 111, which is located outside the transmission assembly, helps prevent users from accidentally contacting moving parts, prevents users' clothing or other foreign objects from being caught in the transmission assembly during use, and also provides dust and water protection. In outdoor or dusty environments, it protects the transmission assembly and electrical components, thus improving operational stability. Preferably, the protective cover 111 is made of a metal plate or a high-strength plastic plate, and openings or inspection doors can be provided according to the distribution of the synchronous belt 1233 and the lead screw 1243.

[0061] The specific working steps of the transfer vehicle 100 are described below.

[0062] When it is necessary to disassemble the circuit breaker 200, the transfer cart 100 is aligned with the switch cabinet 300, and the user pulls the circuit breaker 200 out from the front and secures it to the support part 131. Pulling the pulling part 1323 causes the locking hook 1321 to disengage from the switch cabinet 300, and the drive part 1231 reverses and lowers the support frame 121 to prevent the circuit breaker 200 from falling due to instability caused by its excessive height. After pushing the transfer cart 100 to the designated position, the circuit breaker 200 and the support part 131 are placed on the ground together, and the transfer cart 100 is moved out.

[0063] When it is necessary to install the circuit breaker 200, the support part 131 carries the circuit breaker 200 and raises it to the approximate position of the switch cabinet 300. Then, the side manual operation part 143 is used to fine-tune the position of the moving frame 122. The height is then manually fine-tuned with the four wheels 141 under the support part 131. After alignment, the transfer cart 100 is pushed forward until the locking hook 1321 is connected to the switch cabinet 300. Then, the circuit breaker 200 is pushed into the switch cabinet 300. Subsequently, the pulling part 1323 is pulled to disengage the locking hook 1321 from the switch cabinet 300 and push out the transfer cart 100 to complete the transfer of the circuit breaker 200.

[0064] This utility model's technical solution, by setting an adjustment structure 140, an adjustment rod 142, a manual operation part 143, and adjustment components at the bottom of the mobile frame 122, allows the mobile frame 122 to move within a preset range in the horizontal direction. The adjustment structure 140 allows for manual fine-tuning of the height of the mobile frame 122, ensuring that the supporting part 131 is horizontally aligned with the switch cabinet 300 when the transfer cart 100 is docked with the switch cabinet 300. This improves the accuracy of docking between the transfer cart 100 and the switch cabinet 300, prevents the circuit breaker 200 from falling, and enhances safety. By setting a positioning pin 1223 and a positioning groove 1312, the supporting part 131 is detachably connected to the mobile frame 122, facilitating the removal of the supporting part 131 from the mobile frame 122 when it is placed on the ground, thus improving operational efficiency. By setting an anti-accidental contact locking structure 132, the transfer cart 100 is prevented from reversing during the manual pulling of the circuit breaker 200 from the switch cabinet 300, preventing the circuit breaker 200 from falling and improving safety. By setting a manual lever S5 on the synchronous pulley 1232, when the drive unit 1231 is powered off, the manual lever S5 can be rotated to drive the synchronous pulley 1232 and the synchronous belt 1233 to move, thus achieving emergency operation. The operation is convenient and simple.

[0065] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A circuit breaker transport vehicle, used for the maintenance and transport of switchgear circuit breakers, characterized in that, The circuit breaker transporter includes: A frame; A lifting component, which is arranged on the frame. The lifting component includes a carrier frame, a moving frame and a driving module. The driving module can drive the carrier frame to move up and down along the frame, and the moving frame is arranged on the carrier frame and moves with the carrier frame; A tray component, which is detachably connected to the moving frame and can move with the moving frame. The tray component includes a supporting part and an anti-collision locking structure arranged at the bottom of the supporting part. The supporting part is used for placing the target circuit breaker. The anti-collision locking structure includes a locking hook. In the state where the circuit breaker transporter is docked with the switch cabinet, the locking hook can be connected to the switch cabinet in a matching manner; and An adjusting structure, which can adjust the position of the moving frame so that in the state where the circuit breaker transporter is docked with the switch cabinet, the supporting part is horizontally aligned with the switch cabinet.

2. The circuit breaker transfer vehicle as described in claim 1, characterized in that, The carrier frame includes a first frame body, and the first frame body can move up and down along the frame; The lifting component further includes: a guiding module, which is symmetrically arranged on opposite sides of the frame. The guiding module includes: A second frame body, which is connected to the frame; A first guiding rod, which is arranged on the second frame body. The driving module can drive the first frame body to move up and down along the first guiding rod; A screw rod, which is arranged on the second frame body and is in transmission connection with the driving module; and A buffer, which is arranged on the second frame body and can provide buffering for the descent of the carrier frame.

3. The circuit breaker transfer vehicle as described in claim 2, characterized in that, The driving module includes: A driving part, which is arranged on the frame; and A transmission component, which includes a synchronous pulley, a synchronous belt and an idler pulley. The synchronous pulley and the synchronous belt are in transmission connection. The screw rod is in transmission connection with the synchronous pulley. The synchronous pulley includes a hand-operating rod. Both the driving part or the hand-operating rod can drive the synchronous pulley to rotate, so as to drive the synchronous belt and the screw rod to move in sequence. The idler pulley is arranged on both sides of the synchronous belt to adjust the tightness of the synchronous belt.

4. The circuit breaker transfer vehicle as described in claim 2, characterized in that, The moving frame includes a third frame body. The adjusting structure includes: A plurality of wheel discs, which are evenly arranged at the bottom of the third frame body. Rotating the wheel discs can adjust the height of the moving frame in the corresponding area of the wheel discs, so that the bearing plane of the moving frame remains in a horizontal state.

5. The circuit breaker transfer vehicle as described in claim 4, characterized in that, The adjusting structure further includes: An adjusting rod, which is arranged on the first frame body; A manual operating part, which is arranged on one side of the first frame body and is in transmission connection with the adjusting rod; and An adjusting part, which is arranged at the bottom of the third frame body and is in cooperation connection with the adjusting rod. By driving the adjusting rod to rotate through the manual operating part, the adjusting part can move along the axial direction of the adjusting rod on the adjusting rod, so that the moving frame displaces within a preset range in the horizontal direction.

6. The circuit breaker transfer vehicle as described in claim 5, characterized in that, The first frame body further includes a second guiding rod, and the third frame body further includes rollers. The rollers can slide along the second guiding rod, so that the moving frame moves relative to the carrier frame in the horizontal direction.

7. The circuit breaker transfer vehicle as described in claim 1, characterized in that, The anti-accidental contact locking structure also includes: A pull rod, the pull rod comprising a first part and a second part that are movably connected, a locking hook being disposed at one end of the second part, and an adjustable included angle between the first part and the second part; A pulling part, located at the end of the first part away from the locking hook, when an external force is applied to the pulling part, causes the first part to displace, thereby moving the second part so that the locking hook disengages from the switch cabinet; and An elastic element is provided, with one end connected to the bottom of the support portion and the other end elastically connected to the pull rod, providing elastic restoring force to the pull rod.

8. The circuit breaker transfer vehicle as described in claim 7, characterized in that, The supporting part includes a guide groove on one side for the first part to move. The pulling part can drive the first part to move along the guide groove so as to cause the first part to be displaced in a first direction and a second direction.

9. The circuit breaker transfer vehicle as described in claim 4, characterized in that, The third frame includes a positioning pin, and the supporting part includes a positioning groove on the side near the third frame that matches and connects with the positioning pin. The positioning groove has a guide slope, and the positioning pin can move along the guide slope to separate from the positioning groove.

10. The circuit breaker transfer vehicle as described in claim 3, characterized in that, The vehicle frame includes: A protective cover is disposed outside the transmission assembly.

Images