Electrical component mounting bracket convenient for forklift maintenance

Abstract

The utility model discloses an electrical component mounting bracket convenient for forklift maintenance. The electrical component mounting bracket comprises an upper-layer bracket and a lower-layer bracket, the lower-layer support is composed of a first support body and a second support body which are arranged side by side in a spaced mode, and the upper-layer support is composed of a third support body, a fourth support body and a fifth support body. The third frame body and the first frame body are arranged in a sliding and pulling mode through two sliding devices arranged in a bilateral symmetry mode, the fourth frame body and the third frame body are arranged in parallel and connected, and the fifth frame body is an L-shaped strip-shaped bracket with one side of a vertical plate fixed to the rear side edge of a third supporting plate. The electrical component mounting bracket has a spliced bracket structure, electrical components with high failure rate and frequent maintenance are reasonably distributed on the upper-layer bracket, other electrical components are reasonably distributed on the lower-layer bracket, and the upper-layer bracket and the lower-layer bracket are designed to facilitate horizontal drawing and longitudinal lifting functions, so that when a forklift is repaired and maintained, the maintenance efficiency of the forklift is greatly improved. Fault parts are accurately and effectively disassembled, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift structures, in particular to an electrical component mounting bracket which is convenient for forklift maintenance. Background Art

[0002] Electric forklifts have gained widespread adoption due to their quiet operation and clean energy. Compared to fuel-powered forklifts, electric forklifts have a relatively recent technological development history, and therefore their overall vehicle structure is primarily based on the fuel-powered vehicle architecture. Electric forklifts utilize a multi-motor system for their power output components, multiple controller assemblies, and are equipped with high-voltage and low-voltage electrical systems, transmission systems, multi-circuit cooling and heat dissipation systems, and high-voltage air conditioning systems. These components are constrained by the current fuel-powered vehicle architecture, resulting in a very compact layout. This often results in sacrificing space for later operation and maintenance to meet operational requirements.

[0003] However, electric forklifts currently generally have a high failure rate problem. Due to the limited space for arranging electrical components in the vehicle frame structure, repairing and disassembling the electric control unit of the electric forklift are very difficult due to the narrow space between the electronic control components. In addition, there are certain risks in repairing electrical components, and professional after-sales maintenance personnel need to be trained. The small operating space for repair components will make after-sales service more difficult, and disassembling many parts will cause chain problems, increasing the cost of after-sales service.

[0004] Based on this, it is necessary to design a new splicing bracket structure suitable for electric forklifts based on the structural components of electric forklifts, so as to meet the reasonable layout of its electrical components and make it easier to repair and disassemble according to the specific fault problems of the electric forklifts. Utility Model Content

[0005] The purpose of the utility model is to provide an electrical component mounting bracket which is convenient for forklift maintenance and solves the above technical problems.

[0006] To this end, the technical solution of this utility model is as follows:

[0007] An electrical component mounting bracket for facilitating forklift maintenance, comprising an upper bracket and a lower bracket; wherein,

[0008] The lower support is composed of a first frame body and a second frame body arranged in parallel and at intervals; the first frame body includes a horizontally arranged first support plate, four first legs are arranged vertically and are respectively fixed to the outer wall at the four top corners of the first support plate through the middle of the legs, and the bottom end of each first leg is provided with a connecting plate adapted to the bottom plate of the forklift mounting chamber; the second frame body includes a horizontally arranged second support plate, the top ends of the four second legs are respectively fixed at the four top corners of the bottom surface of the second support plate, and the bottom end of each second leg is provided with a connecting plate adapted to the bottom plate of the forklift mounting chamber;

[0009] The upper bracket is composed of a third frame, a fourth frame and a fifth frame; the third frame includes a horizontally arranged third support plate, which is arranged above the first frame; the two sliding devices are arranged symmetrically on the left and right, and are respectively arranged between the top of the two first legs on each side and the bottom surface of the third support plate, so that the first frame is slid and pulled relative to the third frame through the two sliding devices; the fourth frame includes a horizontally arranged fourth support plate, which is arranged above the second frame; one side of the fourth support plate is fixedly connected to the third support plate, and the fourth legs are respectively arranged on the bottom surface of the two top corners on the other side; the fifth frame is a strip-shaped bracket with an L-shaped radial cross-section, and one side of its vertical plate is fixed to the rear edge of the third support plate to form a strip-shaped accommodating space through the fifth frame and the back plate of the forklift mounting chamber.

[0010] Furthermore, the first support plate, the second support plate, the third support plate and the fourth support plate are all hollow plates.

[0011] Furthermore, each leg is arranged vertically or obliquely, and its bottom end is provided with a connecting plate arranged horizontally or vertically, and bolts are passed through the connecting plate to fix the leg to the bottom plate of the forklift mounting chamber or the step formed on its bottom plate.

[0012] Furthermore, a fastening bolt is passed through the four corners of the top surface of each support plate from bottom to top to be threadedly connected to the electrical component housing set on the support plate; a rubber buffer pad is sleeved and fixed on each fastening bolt to be set between the support plate and the electrical component housing to form a buffer.

[0013] Furthermore, the sliding mechanism includes an upper plate and a lower plate, which are stacked up and down in the horizontal direction; the upper plate is fixed on the bottom surface of the third support plate, and a plurality of ball grooves are provided on the bottom surface of the plate body at intervals along the length direction of the plate body, and each ball groove is a groove with an inverted trapezoidal radial cross-section, and is embedded with freely rolling balls; the lower plate is fixed on the top surface of the two first legs, and a strip-shaped through groove is provided on the top surface of the plate body that is adapted to the position of the ball groove, and the bottom of the strip-shaped through groove is set to an arc surface that cooperates with the balls partially exposed to the outside of the ball groove, so that when the upper plate and the lower plate move relative to each other, rolling friction is formed through the multiple balls.

[0014] Furthermore, an inverted L-shaped fixing plate is vertically connected to the rear edge of the fourth support plate, and a plurality of bolts are provided on the inverted L-shaped fixing plate, so that the fourth frame is also connected and fixed to the back plate of the forklift mounting chamber through the inverted L-shaped fixing plate, thereby increasing the structural stability and strength.

[0015] Furthermore, an H-shaped frame is vertically provided on the top surface of the third support plate adjacent to the fourth support plate to be used for bundling and fixing the wiring of various electrical components.

[0016] Furthermore, the first leg and the fourth leg are both retractable legs.

[0017] Furthermore, the retractable support leg is composed of an outer support tube, an inner support leg and a locking pin; wherein, the inner support leg is movably inserted in the outer support tube; a plurality of pairs of intersecting first radial sockets are arranged on the outer walls on the opposite sides of the outer support tube along the length direction of the outer support tube, and correspondingly, a plurality of second radial sockets are arranged on the side walls of the inner support leg along the length direction of the inner support leg; the locking pin is inserted in any pair of intersecting first radial sockets on the outer support tube and any second radial socket on the inner leg to limit the insertion position of the inner leg in the outer support tube.

[0018] Compared with the existing technology, the electrical component installation bracket that is convenient for forklift maintenance is a new type of splicing bracket structure based on the electrical components of the current electric forklift, which is classified and laid out according to the failure rate and maintenance situation; the bracket structure realizes the rational rearrangement of the various electrical components, and the electrical components with high failure rate and frequent maintenance are distributed in the upper installation space constructed by the upper bracket, and the other electrical components are distributed in the lower installation space constructed by the lower bracket. By designing convenient horizontal pulling and longitudinal lifting functions between the upper bracket and the lower layer, it effectively solves the problems of disorderly layout and difficult maintenance of electrical components in current electric forklifts, and realizes accurate and effective disassembly of corresponding faulty components during the maintenance stage of the forklift, which is convenient for later maintenance and replacement, reduces maintenance time and cost, and makes after-sales service more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an electrical component mounting bracket for facilitating forklift maintenance in Example 1 of the present utility model;

[0020] Figure 2 This is a top view of the lower plate in the sliding mechanism of the electrical component mounting bracket for facilitating forklift maintenance in Example 1 of the present utility model;

[0021] Figure 3 A top view of an upper plate with balls embedded in a sliding mechanism of an electrical component mounting bracket for facilitating forklift maintenance in Example 1 of the present invention;

[0022] Figure 4 This is a radial cross-sectional view of an electrical component mounting bracket for facilitating forklift maintenance in Example 1 of the present utility model;

[0023] Figure 5 This is a schematic structural diagram of an electrical component mounting bracket in a retracted state for facilitating forklift maintenance in Example 2 of the present utility model;

[0024] Figure 6This is a schematic structural diagram of an electrical component mounting bracket in a raised state for facilitating forklift maintenance in Example 2 of the present utility model;

[0025] Figure 7 It is a front view of the forklift installation chamber of the electric forklift in Example 1 and Example 2 of the present utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, the following embodiments are by no means intended to limit the present invention in any way. Example 1

[0027] like Figure 1 As shown, the electrical component mounting bracket for facilitating forklift maintenance includes an upper bracket and a lower bracket. The lower bracket is composed of a first frame 1 and a second frame 2, while the upper bracket is composed of a third frame 3, a fourth frame 4, and a fifth frame 5. The upper bracket is used to mount electrical components on electric forklifts that have a high failure rate and require frequent maintenance, or have special space requirements, while the lower bracket is used to mount electrical components on electric forklifts that have a low failure rate and require less frequent maintenance.

[0028] In the lower bracket, the first frame 1 and the second frame 2 are arranged in parallel and spaced apart; wherein, the first frame 1 is used to set the high-voltage power distributor (PDU), and the second frame 2 is used to set the lithium battery distribution box (BDU).

[0029] See also Figure 1 The first frame 1 includes a horizontally arranged first support plate 101, and four first legs 102 are vertically arranged and fixed to the outer walls at the four top corners of the first support plate 101 through the middle of the legs; in this embodiment, the first support plate 101 adopts a rectangular frame plate to maximize weight reduction through hollow design; the first legs 102 are cut from angle steel, and the bottom side of each first leg 102 is provided with a steel L-shaped connecting plate 103 facing outward, and the vertical plate of the L-shaped connecting plate 103 is welded and fixed to the side wall of the bottom side of the first leg 102, and bolts are vertically penetrated on its horizontal plate to fix the first frame 1 to the designated position of the bottom plate of the forklift mounting chamber 13 through the bolts penetrated on each L-shaped connecting plate 103.

[0030] The second frame 2 includes a horizontally arranged second support plate 201, and the top ends of the four second legs are respectively fixed at the four corners of the bottom surface of the second support plate 201; in this embodiment, the second support plate 201 also adopts a rectangular frame plate body to achieve weight reduction through a hollow design; see Figure 7Since a step 14 is provided on the right side of the bottom plate of the forklift installation chamber 13 of the current electric forklift, in order to achieve adaptive installation of the second frame 2, among the four second legs, the two second legs close to the first frame 1 side adopt L-shaped legs 202, and bolts are vertically penetrated on the bottom horizontal plate thereof, so that the two are fixed to the top surface of the step 14 by bolts; the other two second legs adopt broken line legs 203, the bottom ends of the two are vertically arranged and fit into the right side wall of the step 14, so that they are respectively fixed to the side wall of the step 14 by bolts vertically penetrated on the bottom ends of the broken line legs 203.

[0031] As a preferred technical solution of the embodiment, a fastening bolt 11 is respectively passed through the four corners of the top surface of the first support plate 101 and the second support plate 201 from bottom to top, and a rubber buffer pad 12 is sleeved and fixed on each fastening bolt 11; screw holes are preset on the bottom surface of the electrical component housing arranged on the first support plate 101 and the second support plate 201, and the setting positions of the four fastening bolts 11 on each support plate are adapted to the preset screw hole positions on the bottom surface of the electrical component housing, so that the fastening bolts 11 on each support plate are threadedly connected with the screw holes on the electrical component housing to prevent them from moving due to vibration, bumps, etc. during the operation of the electric forklift; and the rubber buffer pad 12 is arranged between the support plate and the electrical component housing to provide buffering.

[0032] In the upper bracket, the third frame 3 and the fourth frame 4 are arranged in a row, and the fifth frame 5 is fixed on the back side of the third frame 3; wherein, the third frame 3 is used to set the air-conditioning electrical integration box, the fourth frame 4 is used to set the low-voltage electrical appliances, and the fifth frame 5 is used to set the thermal management unit, that is, the heat dissipation system.

[0033] The third frame 3 is arranged directly above the first frame 1, and includes a horizontally arranged third support plate 301. In this embodiment, the third support plate 301 also adopts a rectangular frame-type plate. At the same time, in order to prevent the third frame 3 from hindering the maintenance and repair of the electrical components on the first frame 1, the third frame 3 is slidably connected to the first frame 1 via a sliding device.

[0034] The sliding device is arranged between the first frame 1 and the third frame 3, and is composed of two sliding mechanisms arranged symmetrically on the left and right. The following describes the specific structure of the sliding mechanism by taking the sliding mechanism on one side as an example.

[0035] See also Figures 2 to 4 The sliding mechanism includes an upper plate 8 and a lower plate 6, which are stacked up and down in the horizontal direction; wherein the lower plate 6 and the upper plate 8 are long strips of the same length, and both ends of the two plates are symmetrically provided with intersecting fixing holes 9; specifically,

[0036] The upper plate 8 is welded and fixed to the bottom surface of the third support plate 301. Correspondingly, through holes are opened on the plate surface of the third support plate 301, which are respectively connected to the two fixing holes 9 on the upper plate 8. In the non-maintenance state, the openings on the third support plate 301, the upper plate 8 and the lower plate 6 at the two ends are respectively connected from top to bottom. Then, by respectively passing bolts 10 and matching lock nuts, the three are connected and fixed as a whole to prevent relative sliding between the first frame 1 and the third frame 3.

[0037] Four ball grooves 801 are centrally located and spaced apart along the length of the upper plate 8 on its bottom surface. Each ball groove 801 is an inverted trapezoidal groove with a radial cross-section. Each ball groove 801 is embedded with a ball 7 of a size that matches the inverted trapezoidal groove. The ball 7 is embedded within the ball groove 801 with a portion of the ball 7 protruding from the outside of the groove 801 and can rotate freely. The lower plate 6 is welded to the top end surfaces of the two first legs 102 on the same side of the first frame 1. A strip-shaped through-groove 601 is centrally located along the length of the plate on its top surface. The bottom of the strip-shaped through-groove is an arcuate surface that matches the size of the portion of the ball 7 protruding from the outside of the groove 801. This allows the strip-shaped through-groove 601 and the ball grooves 801 to form an embedded chamber that can accommodate the ball 7 without affecting its free rotation.

[0038] In actual application, the third frame 3 is initially fixedly connected to the first frame 1 by the bolts 10 passed through the fixing holes 9 and the locking nuts on the end sides thereof; when the high-voltage power distributor (PDU) on the first frame 1 needs to be maintained or repaired, the bolts 10 in the two fixing holes 9 are first removed, and then the first frame 1 is pulled outward. At this time, the lower plate 6 fixed on the first frame 1 moves relative to the upper plate fixed on the bottom surface of the third frame 3, and the four balls 7 rotate in the ball grooves 801 and the strip grooves 601, so that rolling friction is formed between the lower plate 6 and the upper plate 8, and smooth movement is achieved between the first frame 1 and the third frame 3; when the first frame 1 is pulled outward a sufficient distance relative to the third frame 3, the high-voltage power distributor (PDU) can be maintained or repaired; after the maintenance or repair is completed, the first frame 1 is pushed inward and the bolts 10 are reinstalled in the two fixing holes 9 to restore the first frame 1 and the third frame 3 to their initial fixed connection state.

[0039] The fourth frame 4 is arranged above the second frame 2, and includes a horizontally arranged fourth support plate 401; the fourth support plate 401 and the third support plate 301 are arranged side by side and are fixedly connected by welding or bolting, so that the fourth support plate 401 and the third support plate 301 share two first legs 102 on the adjacent side to achieve support; two fourth legs 402 are fixed on the bottom surface of the two top corners on the other side of the fourth support plate 401; in this embodiment, the fourth support plate 401 also adopts a rectangular frame structure; the two fourth legs 402 are L-shaped legs arranged obliquely outward, so that the two are fixed to the bottom plate of the forklift mounting chamber 13 through bolts vertically passed through the bottom horizontal plate.

[0040] As a preferred technical solution of this embodiment, in order to enhance the supporting structural strength of the fourth frame 4, an inverted L-shaped fixing plate 403 is vertically fixed on the rear edge of the fourth support plate 401, and two bolts are passed through the inverted L-shaped fixing plate 403 to reinforce and fix the fourth frame 4 to the back plate of the forklift mounting chamber 13 through the inverted L-shaped fixing plate 403.

[0041] As a preferred technical solution of this embodiment, an H-shaped frame 302 is vertically installed on the top surface of the third support plate 301 adjacent to the fourth support plate 401. It is used to bundle and secure the wiring of various electrical components. In addition, consistent with the structural design of the first frame 1 and the second frame 2, a fastening bolt 11 is also inserted from bottom to top at the four corners of the top surface of the third support plate 301 and the fourth support plate 401. Preferably, a rubber cushion is installed and fixed on each fastening bolt 11.

[0042] The fifth frame 5 is a strip-shaped frame with an L-shaped radial cross-section, which is arranged with the frame opening facing backward. One side of the vertical plate of the frame is fixed to the rear edge of the third support plate 301, so that the vertical plate is used to separate the placement space of the electrical components on the third frame 3 and the fifth frame 5, and the thermal management unit is arranged in the accommodating space formed by the back plate fixed by the horizontal plate to the forklift installation chamber 13 and the fifth frame 5. Example 2

[0043] This electrical component mounting bracket that facilitates forklift maintenance is a further upgraded structure of the electrical component mounting bracket shown in Example 1; specifically, since the sizes of the forklift mounting chambers 13 on forklifts of different specifications are different, or the sizes of the electrical components mounted on the bracket are different, in order to make the electrical component mounting bracket more universal, the upper bracket is designed to be adjustable and heightened.

[0044] Based on the electrical component mounting bracket structure shown in Example 1, the four first legs 102 of the first frame 1 are replaced with four first retractable legs 104, and the two fourth legs 402 of the fourth frame 4 are replaced with two fourth retractable legs 404; specifically, Figure 5 As shown,

[0045] The first telescopic leg 104 is composed of a first outer support tube 1041, a first inner support leg 1042 and a first locking pin 1043. The first inner support leg 1042 is movably inserted into the first outer support tube 1041. A plurality of pairs of intersecting first radial insertion holes are provided on the outer walls of the opposite sides of the first outer support tube 1041 at intervals along its length direction. Correspondingly, a plurality of second radial insertion holes are provided on the side walls of the first inner support leg 1042 at intervals along its length direction. The first locking pin 1043 is inserted into any pair of intersecting first radial insertion holes on the first outer support tube 1041 and any one of the second radial insertion holes on the first inner support leg 1042 to limit the insertion position of the first inner support leg 1042 in the first outer support tube 1041, that is, to determine the length of the first telescopic leg 104. The L-shaped connecting plate 103 is fixedly connected to the bottom end of the first outer support tube 1041, and the lower plate 6 of the sliding mechanism is fixed on the top surface of the first inner support leg 1042.

[0046] The fourth telescopic leg 404 includes a fourth outer support tube 4041, a fourth inner support leg 4042 and a fourth locking pin 4043. The fourth inner support leg 4042 is movably inserted into the fourth outer support tube 4041. A plurality of pairs of intersecting first radial insertion holes are provided on the outer walls of the opposite sides of the fourth inner support leg 4042 at intervals along the length direction thereof. Correspondingly, a plurality of second radial insertion holes are provided on the side walls of the fourth inner support leg 4042 at intervals along the length direction thereof. The fourth locking pin 4043 is inserted into the fourth outer support tube 4041. Any pair of interconnected first radial sockets on the outer support tube 4041 and any second radial socket on the fourth inner leg 4042 are used to limit the insertion position of the fourth inner leg 4042 in the fourth outer support tube 4041, thereby determining the length of the fourth telescopic leg 404; a connecting plate 4044 is horizontally welded at the bottom end of the fourth outer support tube 4041, and bolts are passed through the connecting plate 4044 to fix the fourth telescopic leg 404 at the specified position by the bolts.

[0047] like Figure 6As shown, by replacing the four first legs 102 and the two fourth legs 402 with retractable legs, the height distance between the upper and lower supports can be adjusted as needed by lifting (or lowering) the third and fourth frames 3 and 4. This height adjustment can be achieved using, but is not limited to, a jack. During adjustment, the height distance is fixed by intersecting a pair of first radial sockets on the outer support tube with a second radial socket on the inner leg and inserting a locking pin. Furthermore, this lifting and adjusting function is also suitable for performing local maintenance on electrical components installed on the first and second frames 1 and 2. Specifically, if the height clearance of the forklift mounting chamber 13 allows, local maintenance of electrical components can be performed simply by lifting the upper frame using a crane, making maintenance and repair more flexible, reducing after-sales service costs, and improving efficiency.

Claims

1. An electrical component mounting bracket for facilitating forklift maintenance, characterized in that: The invention comprises an upper support and a lower support; wherein the lower support is composed of a first frame (1) and a second frame (2) arranged in parallel and at intervals; the first frame (1) comprises a first support plate (101) arranged horizontally, four first legs (102) arranged vertically and respectively fixed to the outer wall at four top corners of the first support plate (101) through the middle of the legs, and the bottom end of each first leg (102) is provided with a connecting plate adapted to the bottom plate of the forklift installation chamber (13); the second frame (2) comprises a second support plate (201) arranged horizontally, the top ends of the four second legs are respectively fixed to the four top corners of the bottom surface of the second support plate (201), and the bottom end of each second leg is provided with a connecting plate adapted to the bottom plate of the forklift installation chamber (13); the upper support is composed of a third frame (3), a fourth frame (4) and a fifth frame (5); the third frame (3) comprises a horizontally arranged The third support plate (301) is arranged above the first frame (1); the two sliding devices are arranged symmetrically on the left and right and are respectively arranged between the top of the two first legs (102) on each side and the bottom surface of the third support plate (301), so that the first frame (1) can be slid and pulled relative to the third frame (3) through the two sliding devices; the fourth frame (4) includes a horizontally arranged fourth support plate (401), which is arranged above the second frame (2); one side of the fourth support plate (401) is fixedly connected to the third support plate (301), and the second side has fourth legs (402) respectively arranged on the bottom surface of the two top corners; the fifth frame (5) is a strip bracket with an L-shaped radial cross section, and one side of its vertical plate is fixed to the rear edge of the third support plate (301) to form a strip accommodating space through the fifth frame (5) and the back plate of the forklift installation chamber (13).

2. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: The first support plate (101), the second support plate (201), the third support plate (301) and the fourth support plate (401) are all hollow plates.

3. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: Each leg is arranged vertically or obliquely, and a connecting plate arranged horizontally or vertically is provided at its bottom end, and bolts are passed through the connecting plate to fix the leg to the bottom plate of the forklift installation chamber (13) or a step formed on the bottom plate.

4. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: A fastening bolt (11) is provided at each of the four corners of the top surface of each support plate, extending upwards to be threadedly connected to the housing of the electrical component disposed on the support plate; a rubber buffer pad (12) is sleeved and fixed on each fastening bolt (11) to be disposed between the support plate and the housing of the electrical component and to form a buffer.

5. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: The sliding mechanism comprises an upper plate (8) and a lower plate (6), which are stacked up and down in a horizontal direction; the upper plate (8) is fixed on the bottom surface of the third support plate (301), and a plurality of ball grooves (801) are provided on the bottom surface of the plate body at intervals along the length direction of the plate body, each ball groove (801) is a groove with an inverted trapezoidal radial cross section, and is embedded with a freely rolling ball (7); the lower plate (6) is fixed on the top surface of the two first legs (102), and a strip groove (601) is provided on the top surface of the plate body, which is adapted to the position of the ball groove (801), and the bottom of the strip groove (601) is set as an arc surface that matches the ball (7) partially exposed to the outside of the ball groove (801), so that when the upper plate (8) and the lower plate (6) move relative to each other, rolling friction is generated through the plurality of balls (7).

6. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: An inverted L-shaped fixing plate (403) is vertically connected to the rear edge of the fourth support plate (401), and a plurality of bolts are provided through the inverted L-shaped fixing plate (403) so as to connect and fix the fourth frame (4) to the back plate of the forklift installation chamber (13) through the inverted L-shaped fixing plate (403).

7. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: An H-shaped frame (302) is vertically arranged on the top surface of the third support plate (301) adjacent to the fourth support plate (401) to be used for bundling and fixing the wiring of various electrical components.

8. The electrical component mounting bracket for facilitating forklift maintenance according to claim 1, characterized in that: The first supporting leg (102) and the fourth supporting leg (402) are both retractable supporting legs.

9. The electrical component mounting bracket for facilitating forklift maintenance according to claim 8, characterized in that: The retractable support leg is composed of an outer support tube, an inner support leg and a locking pin; wherein, the inner support leg is movably inserted in the outer support tube; a plurality of pairs of intersecting first radial insertion holes are arranged on the outer walls on the opposite sides of the outer support tube along the length direction of the outer support tube, and correspondingly, a plurality of second radial insertion holes are arranged on the side walls of the inner support leg along the length direction of the inner support leg; the locking pin is inserted in any pair of intersecting first radial insertion holes on the outer support tube and any second radial insertion hole on the inner support leg to limit the insertion position of the inner leg in the outer support tube.

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