Three-dimensional sorting trolley

Abstract

The utility model discloses a three-dimensional sorting trolley. The three-dimensional sorting trolley comprises a frame body, a guide supporting wheel set, a lifting driving assembly, an anti-inclination assembly and a lifting output assembly. The anti-inclination assembly comprises an anti-inclination installation frame, an inner side anti-inclination piece and an outer side anti-inclination piece. The anti-inclination mounting frame is fixed with the inner side of the top of the frame main body; the inner side anti-inclination piece and the outer side anti-inclination piece are both mounted on the anti-inclination mounting frame and are opposite to each other; the lifting output assembly comprises a lifting frame and a bearing package discharging structure. According to the characteristic that the height of the three-dimensional sorting trolley is large, the anti-tilting assembly with the two anti-tilting wheels opposite to each other is arranged at the top of the three-dimensional sorting trolley, and the stability of the three-dimensional sorting trolley in the running process can be remarkably improved only by matching the anti-tilting assembly with one track. In addition, the three-dimensional sorting trolley is allowed to tilt outwards in a small range through the inner side anti-tilting wheels which can stretch out and draw back after overcoming the elastic force on the inner side, and therefore the turning stability of the three-dimensional sorting trolley is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics sorting equipment, and in particular relates to a three-dimensional sorting trolley. Background Art

[0002] In the current rapid development of the logistics industry, the efficiency and accuracy of the sorting system are crucial to the entire logistics process. With the rapid growth of e-commerce and the diversification of consumer demand, the logistics industry faces unprecedented challenges, especially in handling large-scale, multi-category, small-batch cargo sorting. The number of existing single-layer sorting grids is insufficient. The introduction of a sorting trolley with a lifting function can increase the number of sorting grids, improve the flexibility and efficiency of the sorting system, and achieve more accurate cargo sorting. However, due to its high height, the sorting trolley with a lifting function is prone to large tilts when turning, which reduces the stability of the sorting machine in long-term operation. Summary of the invention

[0003] The utility model aims to provide a three-dimensional sorting trolley.

[0004] The utility model provides a three-dimensional sorting trolley, comprising a frame body, a guide support wheel group, a lifting drive assembly, an anti-tilt assembly and a lifting output assembly; the guide support wheel group is installed at the bottom of the frame body; the anti-tilt assembly is installed at the top of the frame body;

[0005] The anti-tilt assembly is installed on the top of the frame body, and includes an anti-tilt mounting frame, an inner anti-tilt piece and an outer anti-tilt piece; the anti-tilt mounting frame is fixed to the inner side of the top of the frame body; the inner anti-tilt piece and the outer anti-tilt piece are both installed on the anti-tilt mounting frame and face each other;

[0006] The lifting and outputting assembly comprises a lifting frame and a package-carrying and outputting structure; the lifting frame is slidably connected to the frame body in the vertical direction and is driven by the lifting driving assembly to perform lifting and lowering movements; the package-carrying and outputting structure is installed on the lifting frame for receiving and outputting packages.

[0007] Preferably, the outer anti-tilt member comprises an outer support and an outer anti-tilt wheel; the outer support is fixed on the anti-tilt mounting frame; the outer anti-tilt wheel is rotatably connected to the outer support; the inner anti-tilt member comprises an inner support, an inner anti-tilt wheel, a spring and a guide rod; the inner support and the anti-tilt mounting frame form a sliding pair through the guide rod; a spring is arranged between the inner support and the anti-tilt mounting frame;

[0008] Preferably, the anti-tilt assembly and the bag-carrying structure are respectively located on both sides of the vertical guide bracket; the center of gravity of the three-dimensional sorting trolley as a whole is located directly above the supporting surface of the guide support wheel group.

[0009] Preferably, the guide support wheel assembly comprises a guide roller, a support roller, a guide wheel shaft, a mounting block and a wheel mounting rod. A guide wheel shaft with an axis vertically arranged is installed in the middle of the front and rear ends of the frame body. The guide wheel shaft is coaxially rotatably connected with a mounting block and two guide rollers; the mounting block is located above the two guide rollers. The wheel mounting rod with an axis horizontally arranged is installed on the mounting block. Both ends of the two wheel mounting rods are rotatably connected with support rollers.

[0010] Preferably, the lifting drive assembly comprises a synchronous wheel, a synchronous belt and a lifting motor. The two synchronous wheels are rotatably connected to the top and bottom ends of the vertical guide bracket respectively and are connected by a synchronous belt. The synchronous wheel at the top is fixed to the output shaft of the lifting motor fixed to the top of the frame body. The synchronous belt is fixed to the lifting frame.

[0011] Preferably, both sides of the frame body are equipped with convex lifting guide rails; the lifting frame surrounds the outer side of the vertical guide bracket; the lifting frame is provided with a lifting limit wheel group; each lifting guide rail corresponds to a plurality of lifting limit wheel groups arranged up and down; the lifting limit wheel group includes three limit rollers; the three limit rollers are rotatably connected to the lifting frame, and the outer circumferential surfaces are respectively in contact with the three side surfaces of the lifting guide rail.

[0012] Preferably, the bag-carrying structure comprises a conveying bracket, a driving roller, a driven roller and a conveyor belt; the inner end of the conveying bracket is fixed to the lifting frame; the driving roller and the driven roller are respectively installed at both ends of the conveying bracket and connected by the conveyor belt;

[0013] Preferably, the conveying surface at the top of the conveyor belt is an inclined surface which gradually rises from the inside to the outside; two limit bars are symmetrically arranged on the outer side surface of the conveyor belt; the length direction of the limit bar is parallel to the width direction of the conveyor belt; except for the process of carrying out the package delivery structure to receive or output the package, it is maintained at the outer end of the conveying surface of the conveyor belt by one of the limit bars.

[0014] Preferably, the lifting output assembly further comprises a contact piece and an initial position detection sensor which match each other; the initial position detection sensor is fixed on the frame body; the contact piece is fixed on the lifting frame, and its position matches that of the initial position detection sensor.

[0015] Preferably, the frame body comprises a bottom support seat and a vertical guide bracket. The bottom end of the vertical guide bracket is fixed to the top center position of the bottom support seat. A mounting plate for mounting electrical components is provided on the top of the vertical guide bracket. Both ends of the bottom support seat and both ends of the mounting plate are provided with hinged supports;

[0016] Preferably, a secondary plate is fixed to the bottom of the frame body.

[0017] The beneficial effects of the utility model are:

[0018] 1. Aiming at the high height of the three-dimensional sorting trolley, the utility model sets an anti-tilt assembly with two anti-tilt wheels facing each other on the top of the three-dimensional sorting trolley. The anti-tilt assembly only needs to cooperate with one track to significantly improve the stability of the three-dimensional sorting trolley during operation. In addition, the inner anti-tilt wheel that can be extended and retracted after overcoming the elastic force on the inner side allows the three-dimensional sorting trolley to tilt slightly when turning, and can guide the three-dimensional sorting trolley to return to a vertical state after turning, thereby improving the turning stability of the three-dimensional sorting trolley.

[0019] 2. The utility model uses a three-dimensional sorting trolley with a lifting function to receive the parcels to be sorted, and lifts the parcels to a height corresponding to the designated grid opening, so that the sorting trolley can adapt to multi-layer grid openings to increase the precision of sorting.

[0020] 3. The utility model symmetrically arranges two limit bars on the conveyor belt carrying the package discharging structure, so that the limit bars can play a role in preventing the packages from being thrown out at the outer end of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side structural schematic diagram of the utility model.

[0022] Figure 2 It is a three-dimensional schematic diagram of the hidden anti-tilt component of the utility model.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the anti-tilt assembly in the utility model.

[0024] Figure 4 It is a schematic diagram of the connection between the lifting frame and the frame body in the utility model.

[0025] Figure 5 It is a schematic diagram of the connection between the guide support wheel set and the frame body of the utility model.

[0026] Figure numerals: 1, frame body; 1-1, bottom support seat; 1-2, vertical guide bracket; 1-3, mounting plate; 2, guide support wheel group; 2-1, support roller; 2-2, guide roller; 2-3, guide wheel shaft; 2-4, mounting block; 2-5, wheel mounting rod; 3, lifting drive assembly; 3-1, synchronous belt; 3-2, lifting motor; 4, anti-tilt assembly; 4-1, connecting frame; 4-2, anti-tilt mounting frame; 4-3, outer support; 4-4, outer anti-tilt wheel; 4-5, inner support; 4-6, inner anti-tilt wheel; 4-7, spring; 4-8, guide rod; 5, lifting output assembly; 5-1, lifting frame; 5-2, lifting limit wheel group; 5-3, load-bearing and unloading structure; 5-4, lifting guide rail; 5-5, limit stop bar; 6, collector arm; 7, secondary plate; DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings.

[0028] like Figure 1 and 2 As shown, a three-dimensional sorting trolley is used in a ring sorting machine structure. It can run along the ring track and drive the packages to move up and down so as to deliver the packages to the grid openings at a specified height, thereby meeting the sorting needs of multi-layer grid openings.

[0029] The three-dimensional sorting trolley includes a frame body 1, a guide support wheel group 2, a lifting drive assembly 3, an anti-tilt assembly 4, a lifting output assembly 5 and a collector arm 6. The frame body 1 includes a bottom support seat 1-1 and a vertical guide bracket 1-2. The bottom end of the vertical guide bracket 1-2 is fixed to the top center position of the bottom support seat 1-1. The guide support wheel group 2 is installed on the bottom support seat 1-1. The lifting output assembly 5 is slidably connected to the vertical guide bracket 1-2, and is driven by the lifting drive assembly 3 to perform lifting movement. The anti-tilt assembly 4 is installed on the top of the vertical guide bracket 1-2.

[0030] The anti-tilt assembly 4 and the bag-carrying structure 5-3 in the lifting output assembly 5 are respectively arranged on opposite sides of the vertical guide bracket 1-2, and the gravity on both sides of the three-dimensional sorting trolley is balanced with each other, so that the center of gravity of the whole three-dimensional sorting trolley is located within the supporting surface surrounded by the four supporting rollers 2-1 in the guide support wheel group 2, so that no torque is generated between the supporting force of the three-dimensional sorting trolley and the gravity, thereby improving the stability of the three-dimensional sorting trolley.

[0031] A secondary plate 7 is fixed to the bottom of the bottom support seat 1-1. The secondary plate 7 is used to cooperate with the linear synchronous motor to realize the non-contact drive of the three-dimensional sorting trolley. A mounting plate 1-3 is provided on the top of the vertical guide bracket 1-2. The mounting plate 1-3 is used to install electrical components such as motor drivers.

[0032] During operation, the guide support wheel set 2 and the anti-tilt assembly 4 respectively cooperate with the upper and lower ring tracks of the corresponding ring sorting machine structure to respectively realize the guide support and anti-tilt of the three-dimensional sorting trolley.

[0033] like Figure 2 As shown, the lifting output assembly 5 includes a lifting frame 5-1, a lifting limit wheel group 5-2, a bag-carrying structure 5-3 and a lifting guide rail 5-4. Both sides of the vertical guide bracket 1-2 of the frame body 1 are installed with convex lifting guide rails 5-4. The lifting frame 5-1 is surrounded by the outer side of the vertical guide bracket 1-2. Four lifting limit wheel groups 5-2 are arranged on the lifting frame 5-1. Each lifting guide rail 5-4 corresponds to two lifting limit wheel groups 5-2 arranged up and down. The lifting limit wheel group 5-2 includes three limit rollers. The three limit rollers are all rotatably connected to the lifting frame 5-1, and the outer circumferential surface is in contact with the three side surfaces (the left and right sides, i.e., the outer surface) of the lifting guide rail 5-4 respectively, so that the lifting frame 5-1 can only perform lifting and lowering movements, and the lifting and lowering resistance is small.

[0034] In some embodiments, the lifting output assembly 5 further includes a contact piece and an initial position detection sensor that match each other; the initial position detection sensor is fixed on the frame body 1; and the contact piece is fixed on the lifting frame 5-1. When the contact piece triggers the initial position detection sensor, the height of the carrying package structure 5-3 is the initial height.

[0035] In some embodiments, the initial height of the load-carrying and unloading structure 5 - 3 matches the bag loading height to facilitate the bag loading operation of the sorting trolley.

[0036] In some embodiments, in this embodiment, the initial position detection sensor is a photoelectric sensor.

[0037] like Figure 2 and 4 As shown, the bag-carrying structure 5-3 adopts a belt conveyor, including a conveying bracket, an active roller, a driven roller and a conveyor belt. The inner end of the conveying bracket is fixed to the lifting frame 5-1. The active roller and the driven roller are respectively installed at the inner and outer ends of the conveying bracket. The active roller adopts an electric roller. The active roller and the driven roller are connected by a conveyor belt. The conveying surface on the top of the conveyor belt is inclined and gradually rises from the inside to the outside to prevent the package from moving due to centrifugal force at the bend. Anti-deviation ribs are provided on the active roller and the driven roller, and grooves are provided at corresponding positions on the belt linings on both sides of the conveyor belt to prevent the belt from deviating. A through hole is opened on the conveyor belt; a photoelectric sensor corresponding to the position of the through hole of the conveyor belt is installed on the conveying bracket to facilitate the detection of whether the belt is in the initial state. At the same time, it can also timely feedback whether there is any abnormality in the roller and timely alarm.

[0038] Two limit bars 5-5 are integrally formed on the outer side surface of the conveyor belt. The length direction of the limit bar 5-5 is parallel to the width direction of the conveyor belt. The two ends of the limit bar 5-5 are flush with the two side edges of the conveyor belt. The two limit bars 5-5 are 180° out of phase on the conveyor belt, that is, the center distance between the two limit bars 5-5 along the conveying direction is equal to 1 / 2 of the length of the conveyor belt. During operation, one of the limit bars 5-5 is located at the outer end of the top surface of the conveyor belt, which is used to prevent the goods from being thrown out due to centrifugal force when turning. Baffles are provided on both sides of the conveying bracket; the baffles are used to prevent the goods on the conveyor belt from leaving the support area of ​​the conveyor belt due to the acceleration and deceleration of the sorting cart.

[0039] In some other embodiments, the carrying out bag structure 5 - 3 may also adopt other lower bag structures such as a flip-plate lower bag structure.

[0040] The lifting frame 5-1 is driven by the lifting drive assembly 3 to perform lifting motion. The lifting drive assembly 3 includes a synchronous wheel, a synchronous belt 3-1 and a lifting motor 3-2. The two synchronous wheels are respectively rotatably connected to the top and bottom ends of the vertical guide bracket 1-2 and are connected through the synchronous belt 3-1. The synchronous wheel at the top is fixed to the output shaft of the lifting motor 3-2 fixed to the top of the vertical guide bracket 1-2. The synchronous belt 3-1 is fixed to the lifting frame 5-1.

[0041] like Figure 3 As shown, the anti-tilt assembly 4 includes a connecting frame 4-1, an anti-tilt mounting frame 4-2, an inner anti-tilt member and an outer anti-tilt member. One end of the connecting frame 4-1 is fixed to the top of the vertical guide bracket 1-2. The anti-tilt mounting frame 4-2 is a U-shaped structure with an opening facing downward, and the top of the anti-tilt mounting frame 4-2 is fixed to the bottom surface of the connecting frame 4-1. The inner anti-tilt member and the outer anti-tilt member are respectively installed on the opposite sides of two side plates of the anti-tilt mounting frame 4-2 that are directly opposite to each other. The inner anti-tilt member is located on the side of the outer anti-tilt member away from the lifting frame 5-1.

[0042] The outer anti-tilt member includes an outer support 4-3 and an outer anti-tilt wheel 4-4. The outer support 4-3 is fixed on the anti-tilt mounting frame 4-2. The outer anti-tilt wheel 4-4 is rotatably connected to the outer support 4-3. The inner anti-tilt member includes an inner support 4-5, an inner anti-tilt wheel 4-6, a spring 4-7 and a guide rod 4-8. The inner support 4-5 and the anti-tilt mounting frame 4-2 form a sliding pair for sliding from the inner anti-tilt member to the outer anti-tilt member through the guide rod 4-8. A spring 4-7 is provided between the inner support 4-5 and the anti-tilt mounting frame 4-2; the spring 4-7 is used to apply an elastic force to the inner support 4-5 toward the outer anti-tilt member.

[0043] During operation, the outer circumferences of the inner anti-tilt wheel 4-6 and the outer anti-tilt wheel 4-4 respectively press against the two side surfaces of the corresponding upper track in the ring sorting machine structure. The spring 4-7 is pre-compressed, so that the inner anti-tilt wheel 4-6 has a pre-tightening elastic force on the upper track, thereby improving the stability of the three-dimensional sorting trolley. At the same time, the telescopic structure based on the guide rod in the inner anti-tilt part allows the three-dimensional sorting trolley to tilt slightly outward when turning, so as to reduce the impact at the moment of turning.

[0044] like Figure 5 As shown, the guide support wheel group 2 includes a support roller 2-1, a guide roller 2-2, a guide wheel shaft 2-3, a mounting block 2-4 and a wheel mounting rod 2-5. A vertically arranged guide wheel shaft 2-3 is fixed in the middle of the front and rear ends of the frame body 1. The mounting block 2-4 and two guide rollers 2-2 are coaxially rotatably connected on the guide wheel shaft 2-3; the mounting block 2-4 is located above the two guide rollers 2-2. The wheel mounting rod 2-5 with a horizontal axis is installed on the mounting block 2-4. Both ends of the two wheel mounting rods 2-5 are rotatably connected to the support rollers 2-1.

[0045] During operation, the supporting roller 2-1 and the guiding roller 2-2 cooperate with the corresponding lower rails in the ring sorting machine structure to achieve the guidance and support of the three-dimensional sorting trolley.

[0046] The collector arm 6 is fixed on the inner side of the anti-tilt mounting frame 4-2 (i.e., the side away from the frame body 1); the collector arm 6 is used to connect with the busbar 3 in the ring sorting machine structure to realize the power supply, control and signal output of the electrical components on the three-dimensional sorting trolley.

[0047] Specifically, all electrical components on the three-dimensional sorting vehicle are directly or indirectly connected to the wire collection arm to realize power supply or signal input and output of each electrical component. Among them, the active roller control line of the bag-carrying structure 5-3 and the power supply signal line of the sensor are connected to the mounting plate 1-3 on the top of the frame body 1 through a drag chain, connected to the corresponding electrical components, or directly connected to the wire collection arm.

[0048] Both ends of the bottom support seat 1-1 and both ends of the mounting plate 1-3 are provided with hinged supports, which are used to connect adjacent three-dimensional sorting carts through connecting rods. Specifically, the two ends of the connecting rod and the two hinged supports form a spherical pair through fisheye bearings.

[0049] The working principle of the utility model is as follows:

[0050] After receiving the goods, the carrying and unloading structure 5-3 of the three-dimensional sorting trolley conveys them to the target position along the track; and the carrying and unloading structure 5-3 of the three-dimensional sorting trolley is raised and lowered to the target height. After that, the active roller in the carrying and unloading structure 5-3 rotates, so that the conveyor belt delivers the package to the target grid. After the three-dimensional sorting trolley outputs the package, the carrying and unloading structure 5-3 is raised and lowered to the initial height again.

Claims

1. A three-dimensional sorting trolley, characterized in that: The vehicle comprises a frame body (1), a guide support wheel group (2), a lifting drive assembly (3), an anti-tilt assembly (4) and a lifting output assembly (5); the guide support wheel group (2) is mounted on the bottom of the frame body (1); and the anti-tilt assembly (4) is mounted on the top of the frame body (1); The anti-tilt assembly (4) is mounted on the top of the vehicle frame body (1), and comprises an anti-tilt mounting frame (4-2), an inner anti-tilt piece and an outer anti-tilt piece; the anti-tilt mounting frame (4-2) is fixed to the inner side of the top of the vehicle frame body (1); the inner anti-tilt piece and the outer anti-tilt piece are both mounted on the anti-tilt mounting frame (4-2) and face each other; The lifting and outputting assembly (5) comprises a lifting frame (5-1) and a package-carrying and outputting structure (5-3); the lifting frame (5-1) is slidably connected to the frame body (1) in the vertical direction and is driven by the lifting drive assembly (3) to perform lifting movement; the package-carrying and outputting structure (5-3) is installed on the lifting frame (5-1) and is used to receive and output packages.

2. A three-dimensional sorting trolley according to claim 1, characterized in that: The outer anti-tilt component comprises an outer support (4-3) and an outer anti-tilt wheel (4-4); the outer support (4-3) is fixed on the anti-tilt mounting frame (4-2); the outer anti-tilt wheel (4-4) is rotatably connected to the outer support (4-3); the inner anti-tilt component comprises an inner support (4-5), an inner anti-tilt wheel (4-6), a spring (4-7) and a guide rod (4-8); the inner support (4-5) and the anti-tilt mounting frame (4-2) form a sliding pair through the guide rod (4-8); and a spring (4-7) is arranged between the inner support (4-5) and the anti-tilt mounting frame (4-2).

3. A three-dimensional sorting trolley according to claim 1, characterized in that: The anti-tilt assembly (4) and the bag-carrying structure (5-3) are respectively located on both sides of the vertical guide bracket (1-2); the center of gravity of the three-dimensional sorting trolley as a whole is located directly above the support surface of the guide support wheel group (2).

4. A three-dimensional sorting trolley according to claim 1, characterized in that: The guide support wheel group (2) comprises a support roller (2-1), a guide roller (2-2), a guide wheel shaft (2-3), a mounting block (2-4) and a wheel mounting rod (2-5); a guide wheel shaft (2-3) with an axis vertically arranged is mounted in the middle of the front and rear ends of the frame body (1); the guide wheel shaft (2-3) is coaxially rotatably connected with the mounting block (2-4) and the two guide rollers (2-2); the mounting block (2-4) is located above the two guide rollers (2-2); the wheel mounting rod (2-5) with an axis horizontally arranged is mounted on the mounting block (2-4); and the two ends of the two wheel mounting rods (2-5) are rotatably connected with the support rollers (2-1).

5. The three-dimensional sorting vehicle according to claim 1, characterized in that: The lifting drive assembly comprises a synchronous wheel, a synchronous belt (3-1) and a lifting motor (3-2); the two synchronous wheels are rotatably connected to the top and bottom ends of the vertical guide bracket respectively, and are connected through the synchronous belt (3-1); the synchronous wheel at the top is fixed to the output shaft of the lifting motor (3-2) fixed to the top of the frame body; the synchronous belt (3-1) is fixed to the lifting frame.

6. The three-dimensional sorting vehicle according to claim 1, characterized in that: Both sides of the frame body (1) are equipped with outwardly convex lifting guide rails (5-4); the lifting frame (5-1) surrounds the outer side of the vertical guide bracket (1-2); the lifting frame (5-1) is provided with a lifting limit wheel group (5-2); each lifting guide rail (5-4) corresponds to a plurality of lifting limit wheel groups (5-2) arranged up and down; the lifting limit wheel group (5-2) includes three limit rollers; the three limit rollers are rotatably connected to the lifting frame (5-1), and the outer circumferential surfaces are respectively in contact with the three side surfaces of the lifting guide rail (5-4).

7. The three-dimensional sorting vehicle according to claim 1, characterized in that: The bag-carrying and unloading structure (5-3) comprises a conveying bracket, a driving roller, a driven roller and a conveyor belt; the inner end of the conveying bracket is fixed to the lifting frame (5-1); the driving roller and the driven roller are respectively installed at the two ends of the conveying bracket and are connected by a conveyor belt.

8. The three-dimensional sorting vehicle according to claim 7, characterized in that: The conveying surface at the top of the conveyor belt is an inclined surface that gradually rises from the inside to the outside; two limit stop bars (5-5) are symmetrically arranged on the outer side surface of the conveyor belt; the length direction of the limit stop bars (5-5) is parallel to the width direction of the conveyor belt; except for the process of the package output structure (5-3) receiving or outputting the package, it is maintained at the outer end of the conveying surface of the conveyor belt by one of the limit stop bars (5-5).

9. The three-dimensional sorting vehicle according to claim 1, characterized in that: The lifting output assembly (5) further comprises a contact piece and an initial position detection sensor that match each other; the initial position detection sensor is fixed on the vehicle frame body (1); the contact piece is fixed on the lifting frame (5-1), and its position matches that of the initial position detection sensor.

10. The three-dimensional sorting vehicle according to claim 1, characterized in that: The frame body (1) comprises a bottom support seat (1-1) and a vertical guide bracket (1-2); the bottom end of the vertical guide bracket (1-2) is fixed at the top center position of the bottom support seat (1-1); a mounting plate for mounting electrical components is arranged on the top of the vertical guide bracket (1-2); both ends of the bottom support seat (1-1) and both ends of the mounting plate (1-3) are provided with hinged supports.

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