Service trolley of metal armored cabinet

Abstract

A service trolley of a metal armored cabinet comprises a trolley frame, a lifting frame, clamping frames and sliding frames, the lifting frame is installed on the trolley frame in a longitudinal lifting mode, the two clamping frames are oppositely installed on the lifting frame, the sliding frames are slidably installed on the opposite sides of the two clamping frames respectively, and butt joint sliding grooves are formed in the opposite sides of the two sliding frames respectively. The sliding frame is installed through the clamping frame in a sliding mode, the butt joint sliding grooves of the sliding frame are in butt joint with the two sides of the lower end of the switch handcart, after the switch handcart enters the sliding frame, the switch handcart is pulled backwards and taken out, then the lifting frame descends, the switch handcart is closer to the ground, the switch handcart with the low gravity center is transferred, and therefore the risk that the switch handcart topples over in the transferring process is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of safety warnings, in particular to a service trolley for a metal armored cabinet. Background Art

[0002] When the 6kV-24kV metal armored air-insulated switchgear or the corresponding air-insulated switch or the related lines are shut down for maintenance, the switch trolley needs to be moved to the test position first, and then the switch trolley is moved from the test position to the maintenance position with the help of the matching service trolley. Before the switchgear or the corresponding air-insulated switch or the related lines are powered on, the switch trolley needs to be moved from the maintenance position to the test position with the help of the matching service trolley. Since the current service trolley cannot lift the switch trolley, there is a risk of the service trolley tipping over when the switch trolley is transported at a high center of gravity. Utility Model Content

[0003] The utility model aims to provide a service trolley for a metal armored cabinet. A sliding frame is slidably installed by a clamping frame, and a docking slide groove of the sliding frame docks with two sides of the lower end of a switch trolley. When the switch trolley enters the sliding frame, the switch trolley is pulled out from behind, and then the lifting frame is lowered to make the switch trolley closer to the ground. The switch trolley is transported with a low center of gravity, thereby eliminating the risk of tipping during transportation.

[0004] To achieve the above-mentioned purpose, the utility model provides a service trolley for a metal armored cabinet, comprising a frame, a lifting frame, a clamping frame and a sliding frame, wherein a lifting frame is installed on the frame for longitudinal lifting, two clamping frames are installed opposite to each other on the lifting frame, sliding frames are respectively slidably installed on the two clamping frames on opposite sides, and docking slide grooves are respectively provided on opposite sides of the two sliding frames.

[0005] The frame includes a longitudinal frame and legs, the two legs are respectively installed on both sides of the lower end of the longitudinal frame, and casters are installed on the lower sides of the legs; two guide rods are longitudinally installed on the longitudinal frame, the lifting frame is slidably connected to the two guide rods, a first screw rod is installed on the longitudinal frame and rotates between the two guide rods, a first motor is installed on the top of the longitudinal frame, the output shaft of the first motor is connected to one end of the first screw rod for transmission, a screw nut is installed on the lifting frame, and the screw nut is screwed together with the first screw rod.

[0006] A dual-output reducer is installed in the lifting frame, and a second motor is provided at the input shaft end of the dual-output reducer. The output shafts on both sides of the dual-output reducer are respectively connected and fixed to one end of two second screw rods, and the other ends of the two second screw rods are respectively connected and supported for rotation with the lifting frame; a guide hole is provided on the side of the lifting frame facing the clamping frame, and a guide block is provided on the end of the clamping frame close to the lifting frame, the guide block extends into the guide hole, and the guide block is screwed with the second screw rod; the clamping frames on both sides run in a facing or back-to-back manner driven by the second screw rod.

[0007] The two clamping frames are respectively provided with C-shaped grooves on opposite sides, and a plurality of supporting wheels are installed on the side of the sliding frame facing away from the docking sliding groove, and the supporting wheels roll in the C-shaped grooves.

[0008] The clamping frame is provided with a long hole at the bottom of the C-shaped groove, the clamping frame is facing away from the side of the C-shaped groove, and two bearing seats are installed at both ends of the long hole, a third screw rod is installed on the two bearing seats, a third motor is installed on the bearing seat on one side, the output shaft of the third motor is connected to the third screw rod for transmission, a nut seat is installed on the third screw rod, and the nut seat passes through the long hole to be connected with the sliding frame.

[0009] The frame also includes a shell, which is installed on the longitudinal frame. A avoidance gap is provided on the side of the shell facing the clamping frame to avoid the lifting and lowering operation of the lifting frame. A hinge hole and a positioning hole are provided at one end of the leg. The leg is pivotally hinged to the longitudinal frame through the hinge hole. Two insertion holes are provided on both sides of the shell at positions corresponding to the positioning holes. The pins are inserted into the insertion holes and the positioning holes, so as to limit the leg in a horizontal state or a vertical state. Casters are installed at the bottom of the longitudinal frame.

[0010] Compared with the prior art, the utility model has the following technical effects:

[0011] 1. The utility model installs the sliding frame by sliding the clamping frame, and the docking slide groove of the sliding frame docks with the two sides of the lower end of the switch trolley. When the switch trolley enters the sliding frame, the switch trolley is pulled out from behind, and then the lifting frame is lowered to make the switch trolley closer to the ground. The switch trolley is transported with a low center of gravity, thereby eliminating the risk of tipping during transportation.

[0012] 2. The lifting frame of the utility model is equipped with a double-output reducer, the input shaft end of the double-output reducer is provided with a second motor, the output shafts on both sides of the double-output reducer are respectively connected with two second screw rods, and a guide block is provided at one end of the clamping frame close to the lifting frame, the guide block extends into the guide hole, and the guide block is screwed with the second screw rod. Through the above structure, the clamping and loosening of the clamping frames on both sides are realized. When the clamping frames on both sides are driven by the second screw rod to move toward each other, the switch trolley can be clamped and fixed by the sliding frame; when the clamping frames on both sides are driven by the second screw rod to move away from each other, the switch trolley can be released.

[0013] 3. The legs of the utility model can rotate, thereby preventing the legs from being blocked by obstacles when the legs are in a horizontal state, so that the service trolley cannot approach the switch trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the frame of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the frame of the utility model from another perspective.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the lifting frame of the utility model.

[0019] Figure 5 for Figure 3 Enlarged structural diagram at A in the middle.

[0020] Figure 6 This is a state diagram used in the present utility model.

[0021] In the figure:

[0022] Frame 10, longitudinal skeleton 11, legs 12, hinge hole 121, positioning hole 122, latch 123, caster 13; guide rod 14, first screw rod 15, first motor 16, housing 17, avoidance notch 18, insertion hole 19,

[0023] Lifting frame 20, guide hole 21, dual-output reducer 22, second screw rod 23, second motor 24;

[0024] Clamping frame 30, guide block 31, long hole 32, bearing seat 33, third motor 34, third screw rod 35, nut seat 36, C-shaped groove 37;

[0025] Sliding frame 40, docking slide 41, supporting wheel 42;

[0026] Switch trolley 50. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0028] See also Figure 1-6 A service trolley for a metal armored cabinet includes a vehicle frame 10, a lifting frame 20, a clamping frame 30 and a sliding frame 40. The lifting frame 20 is longitudinally lifted and installed on the vehicle frame 10. Two clamping frames 30 are oppositely installed on the lifting frame 20. The two clamping frames 30 are respectively slidably installed with sliding frames 40 on opposite sides. The two sliding frames 40 are respectively provided with docking slide grooves 41 on opposite sides. The sliding frames 40 are slidably installed by the clamping frames 30. The docking slide grooves 41 of the sliding frames 40 dock with the two sides of the lower end of the switch trolley 50. When the switch trolley 50 enters the sliding frame 40, the switch trolley 50 is pulled out, and then the lifting frame 20 is lowered to make the switch trolley 50 closer to the ground. The switch trolley is transported with a low center of gravity, thereby eliminating the risk of tipping during transportation.

[0029] See also Figure 2 , 3 The frame 10 includes a longitudinal frame 11 and legs 12. The two legs 12 are respectively installed on both sides of the lower end of the longitudinal frame 11. Casters 13 are installed on the lower side of the legs 12. Two guide rods 14 are longitudinally installed on the longitudinal frame 11. The lifting frame 20 is slidingly matched and guidedly connected with the two guide rods 14. A first screw rod 15 is installed on the longitudinal frame 11 and rotates between the two guide rods 14. A first motor 16 is installed on the top of the longitudinal frame 11. The output shaft of the first motor 16 is connected to one end of the first screw rod 15 for transmission. A screw nut is installed on the lifting frame 20. The screw nut is screwed with the first screw rod 15. The legs 12 are used to support the longitudinal frame 11. The casters 13 are used to move the frame 10. The first motor 16 is used to drive the first screw rod 15 to rotate. Through the above structure, when the lifting frame 20 needs to be lifted, the first motor 16 rotates forward or reversely, thereby driving the first screw rod 15 to rotate forward or reversely. Since the screw nut on the lifting frame 20 is screwed with the first screw rod 15, the lifting frame 20 is driven to lift.

[0030] Specifically, the first screw rod 15 is a ball screw, and the first motor 16 is a stepping motor or a servo motor.

[0031] It should be understood that, in addition to using the first screw rod 15 to drive the lifting frame 20 to move up and down, the lifting frame 20 may also be driven to move up and down by an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0032] See also Figure 4A dual-output reducer 22 is installed in the lifting frame 20, and a second motor 24 is provided at the input shaft end of the dual-output reducer 22. The output shafts on both sides of the dual-output reducer 22 are respectively connected and fixed to one end of two second screw rods 23, and the other ends of the two second screw rods 23 are respectively connected and supported by the lifting frame 20 for rotation; a guide hole 21 is provided on the side of the lifting frame 20 facing the clamping frame 30, and a guide block 31 is provided on the end of the clamping frame 30 close to the lifting frame 20, the guide block 31 extends into the guide hole 21, and the guide block 31 is screwed with the second screw rod 23; the clamping frames 30 on both sides respectively run in a facing or back-to-back manner driven by the second screw rod 23. Through the above structure, the clamping and releasing of the clamping frames 30 on both sides are realized. When the clamping frames 30 on both sides move toward each other under the drive of the second screw rod 23, the switch trolley 50 can be clamped and fixed by the sliding frame 40; when the clamping frames 30 on both sides move away from each other under the drive of the second screw rod 23, the switch trolley 50 can be released.

[0033] When in use, the second motor 24 drives the dual-output reducer 22 to rotate, and the dual-output reducer 22 drives the second screw rods 23 on both sides to rotate. The second screw rods 23 on both sides have positive and negative threads respectively. In this way, when the second screw rods 23 on both sides rotate, the clamping frames on both sides will move toward or away from each other.

[0034] See also Figure 5 The two clamping frames 30 are respectively provided with C-shaped grooves 37 on opposite sides, and the sliding frame 40 is provided with a plurality of supporting wheels 42 on the side facing away from the docking groove 41, and the supporting wheels 42 roll in the C-shaped grooves 37. Through the above structure, the telescopic sliding of the sliding frame 40 is realized.

[0035] Specifically, a plurality of extending shafts are fixedly connected to the sliding frame 40 , and the supporting wheel 42 is mounted on the extending shafts through bearings, or the supporting wheel 42 adopts bearings. The supporting wheel 42 moves axially in the C-shaped groove 37 in a telescopic manner.

[0036] In addition to the above structure, the sliding connection between the sliding frame 40 and the clamping frame 30 can also adopt a dovetail slide groove structure. For example, the C-shaped groove 37 is a dovetail slide groove, and a dovetail slider is provided on the sliding frame 40. The dovetail slider and the dovetail slide groove slide in cooperation.

[0037] See also Figure 4 , 5The clamping frame 30 is provided with a long hole 32 at the bottom of the C-shaped groove 37. The clamping frame 30 is on the side facing away from the C-shaped groove 37, and two bearing seats 33 are installed at both ends of the long hole 32. The two bearing seats 33 are installed with a third screw rod 35. A third motor 34 is installed on the bearing seat 33 on one side. The output shaft of the third motor 34 is connected to the third screw rod 35 for transmission. A nut seat 36 is installed on the third screw rod 35. The nut seat 36 passes through the long hole 32 and is connected to the sliding frame 40. Through the above structure, the automatic telescopic movement of the sliding frame 40 is realized.

[0038] When in use, the third motor 34 drives the third screw rod 35 to rotate. Since the nut seat 36 is connected with the third screw rod 35, the nut seat 36 moves axially along the third screw rod 35, thereby driving the sliding frame 40 to extend and retract.

[0039] See also Figure 1 , 2 6. The frame 10 also includes a shell 17, which is mounted on the longitudinal frame 11. The shell 17 is provided with a clearance notch 18 on the side facing the clamping frame 30 for avoiding the lifting frame 20 from lifting and lowering. A hinge hole 121 and a positioning hole 122 are provided at one end of the leg 12. The leg 12 is pivotally hinged to the longitudinal frame 11 through the hinge hole 121. Two insertion holes 19 are provided on both sides of the shell 17 at positions corresponding to the positioning holes 122. The latch 123 penetrates the insertion hole 19 and the positioning hole 122, thereby limiting the leg 12 in a horizontal state or an upright state. A caster 13 is installed at the bottom of the longitudinal frame 11. Through the above structure, the leg 12 can rotate, thereby preventing the leg 12 from being blocked by obstacles when the leg 12 is in a horizontal state, so that the service trolley cannot approach the switch trolley 50.

[0040] Of course, in order to ensure that the service vehicle can remain stable when the legs 12 are rotated to the upright state, a counterweight may be installed in the longitudinal frame 11 .

[0041] exist Figure 6 The figure shows that the leg 12 is in a horizontal state. If the leg 12 needs to be rotated to an upright state, the latch 123 is first pulled out, and the leg 12 is manually lifted up. When the leg 12 is in an upright state, the latch 123 is inserted into the insertion hole 19 on the upper side and into the positioning hole 122. When the leg 12 is in an upright state, the four casters at the bottom of the longitudinal frame 11 are stressed.

[0042] Furthermore, a handle is installed on the housing 17, which facilitates pushing the service cart.

[0043] The working principle or action process of the utility model is as follows:

[0044] When using, see Figure 6, push the service trolley to the front of the metal armored cabinet and brake the caster 13. Control the first motor 16 to rotate, adjust the height of the lifting frame 20, and align the docking slide 41 of the sliding frame 40 with the bottom platform of the switch trolley 50. Then the second motor 24 rotates, so that the clamping frames 30 on both sides are driven by the second screw rod 23 to run back to open. Then the third motor 34 starts to drive the sliding frame 40 to extend. During the extension of the sliding frame 40, the docking slide 41 of the sliding frame 40 is inserted into the two sides of the bottom platform of the switch trolley 50. Then the second motor 24 rotates in the opposite direction, so that the clamping frames 30 on both sides are driven by the second screw rod 23 to run towards each other, so that the sliding frame 40 clamps the bottom platform of the switch trolley 50. Then the third motor 34 starts in the opposite direction, drives the sliding frame 40 to retract, and thus lifts the switch trolley 50 out. After the switch trolley 50 is lifted out, the first motor 16 rotates in the opposite direction, and the lifting frame 20 is lowered, so that the switch trolley 50 is closer to the ground. Then release the brake of the caster 13 and transfer the switch trolley 50 by the service trolley.

Claims

1. A service trolley for a metal armored cabinet, characterized in that: The invention comprises a vehicle frame (10), a lifting frame (20), a clamping frame (30) and a sliding frame (40); the lifting frame (20) is longitudinally lifted and installed on the vehicle frame (10); two clamping frames (30) are oppositely installed on the lifting frame (20); sliding frames (40) are respectively slidably installed on opposite sides of the two clamping frames (30); and docking slide grooves (41) are respectively arranged on opposite sides of the two sliding frames (40).

2. A service trolley for a metal armored cabinet according to claim 1, characterized in that: The frame (10) comprises a longitudinal frame (11) and legs (12), the two legs (12) being respectively mounted on both sides of the lower end of the longitudinal frame (11), and casters (13) being mounted on the lower sides of the legs (12); two guide rods (14) being mounted longitudinally on the longitudinal frame (11), the lifting frame (20) being slidably connected to the two guide rods (14), a first screw rod (15) being mounted on the longitudinal frame (11) and being rotatable between the two guide rods (14), a first motor (16) being mounted on the top of the longitudinal frame (11), an output shaft of the first motor (16) being connected to one end of the first screw rod (15) for transmission, a screw nut being mounted on the lifting frame (20), and the screw nut being screwed to the first screw rod (15).

3. A service trolley for a metal armored cabinet according to claim 1 or 2, characterized in that: A dual-output reducer (22) is installed in the lifting frame (20), and a second motor (24) is provided at the input shaft end of the dual-output reducer (22). The output shafts on both sides of the dual-output reducer (22) are respectively connected and fixed to one end of two second screw rods (23), and the other ends of the two second screw rods (23) are respectively connected and supported by the lifting frame (20) for rotation. A guide hole (21) is provided on the side of the lifting frame (20) facing the clamping frame (30), and a guide block (31) is provided on the end of the clamping frame (30) close to the lifting frame (20). The guide block (31) extends into the guide hole (21), and the guide block (31) is screwed to the second screw rod (23). The clamping frames (30) on both sides run in a facing or back-to-back manner under the drive of the second screw rod (23).

4. A service trolley for a metal armored cabinet according to claim 1, characterized in that: The two clamping frames (30) are respectively provided with C-shaped grooves (37) on opposite sides, and a plurality of supporting wheels (42) are installed on the side of the sliding frame (40) facing away from the docking sliding groove (41), and the supporting wheels (42) roll in the C-shaped grooves (37).

5. A service trolley for a metal armored cabinet according to claim 1, characterized in that: The clamping frame (30) is provided with a long hole (32) at the bottom of the C-shaped groove (37). The clamping frame (30) is on a side facing away from the C-shaped groove (37), and two bearing seats (33) are installed at both ends of the long hole (32). A third screw rod (35) is installed on the two bearing seats (33). A third motor (34) is installed on the bearing seat (33) on one side. The output shaft of the third motor (34) is connected to the third screw rod (35) for transmission. A nut seat (36) is installed on the third screw rod (35), and the nut seat (36) passes through the long hole (32) and is connected to the sliding frame (40).

6. A service trolley for a metal armored cabinet according to claim 2, characterized in that: The frame (10) further comprises a shell (17), the shell (17) being mounted on the longitudinal frame (11), a side of the shell (17) facing the clamping frame (30) being provided with an avoidance notch (18) for avoiding the lifting frame (20) from lifting and lowering, one end of the support leg (12) being provided with a hinge hole (121) and a positioning hole (122), the support leg (12) being pivotally hinged to the longitudinal frame (11) via the hinge hole (121), two insertion holes (19) being provided on both sides of the shell (17) at positions corresponding to the positioning holes (122), the latch pin (123) being inserted into the insertion hole (19) and the positioning hole (122), thereby limiting the support leg (12) in a horizontal state or an upright state; and casters (13) being installed at the bottom of the longitudinal frame (11).

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