Automatic spraying and drying equipment for electro-tricycle basket

By introducing structures such as arc-shaped baffles, conveying components, and rotating discs into the automatic spraying and drying equipment for electric tricycle baskets, the problems of traditional equipment being unable to cover the internal parts and being inconvenient to fix have been solved, realizing comprehensive spraying and rapid drying of the baskets, and improving production efficiency and convenience.

CN223811176UActive Publication Date: 2026-01-20TIANJIN TIANCHANG ZHENHANG IND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520253937.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-01-20
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Traditional automatic spraying and drying equipment for electric tricycle baskets cannot quickly cover the inside of the basket during the spraying process, and lacks a convenient locking and fixing structure, which affects production efficiency.

Method used

An automatic spraying and drying device for electric tricycle baskets was designed, comprising an arc-shaped baffle, a conveying assembly, a spraying device, and a drying device. By setting up an elastic fixing plate, a rotating disc, and an end clamping block, the spraying range can be adjusted and conveniently locked in place.

Benefits of technology

It enables comprehensive spraying and rapid drying of the inside of the basket, improving production efficiency, ensuring uniform coating coverage, and facilitating the handling of finished products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field related to basket machining, in particular to electro-tricycle basket automatic spraying and drying equipment which comprises an equipment body, arc-shaped baffles are arranged in the middles of the upper sides of grooves in the left side and the right side of the equipment body, and a conveying assembly is arranged in the middle of the upper end of the inner side of the equipment body. A set of spraying equipment is arranged in the middle of the right side of the front side surface and the rear side surface of the equipment body by forming a rectangular penetrating groove. The improved automatic spraying and drying equipment for the electro-tricycle basket is provided with the fixed sawtooth plates and the rotating discs, and the set of rotating discs are connected to the bottom end of the elastic fixed plate, so that sawtooth blocks at the ends of the fixed sawtooth plates fixed to the upper ends of the front side and the rear side of the inner wall of the equipment body can be meshed through a meshing structure; and the rotating disc moving through the conveying assembly is driven to rotate along the bottom end of the elastic fixing plate, so that the bottom end of the rotating disc can rotate to adjust the angle in the conveying process, and the basket can rotate to be subjected to spraying treatment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical fields of basket processing of electric tricycle, and specifically relates to an automatic spraying and drying equipment for baskets of electric tricycles. BACKGROUND

[0002] After the basket of the electric tricycle is finished with processing and assembling, the surface of the basket body needs to be painted to prevent the iron structure of the basket body from rusting and corroding to the maximum extent, thereby affecting the service life.

[0003] After the basket is sprayed, the basket needs to be dried to quickly dry the paint on the surface of the basket so that the user can quickly take the finished product after the drying is finished.

[0004] The inventor found the following problems in the prior art during the implementation of the utility model: 1. The spraying range of the spraying equipment on the left and right sides of the conventional automatic spraying and drying equipment for baskets of electric tricycles is limited, so the inner part of the basket body cannot be quickly sprayed with paint; 2. In order to ensure the automatic production efficiency of the equipment, the equipment needs to have a structure for quickly fixing, clamping, and unlocking and taking. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an automatic spraying and drying equipment for baskets of electric tricycles to solve the problems of the conventional automatic spraying and drying equipment for baskets of electric tricycles, i.e., lack of a spraying adjusting structure and lack of a convenient clamping structure. To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automatic spraying and drying equipment for baskets of electric tricycles, comprising an equipment body, an arc-shaped baffle is arranged on the upper middle part of the left and right recesses of the equipment body, a group of conveying assemblies are arranged on the inner upper end middle part of the equipment body, a group of spraying equipment are arranged on the right middle part of the front and rear surfaces of the equipment body through the rectangular through grooves, and a group of drying devices are arranged on the left middle part of the front and rear surfaces of the equipment body through the rectangular through grooves.

[0006] A group of elastic fixing plates are arranged at equal intervals on the front and rear middle parts of the outer surface of the conveying assembly, a group of fixed sawtooth plates are arranged on the inner wall of the equipment body, and a group of end clamping blocks are arranged on the side of the elastic fixing plate away from the conveying assembly.

[0007] The middle part of the side surface of the elastic fixing plate away from the conveying assembly is provided with a group of fixed connecting shafts, and the end of the fixed connecting shaft is connected with a group of rotating discs.

[0008] The middle part of the end of the end clamping block is provided with a group of rectangular grooves, and the front and back sides of the rectangular groove of the end clamping block are provided with a group of sliding clamping blocks, the middle part of the front and back sides of the surface of the end clamping block is provided with a group of unlocking knobs, and the end of the sliding clamping block on the inner side of the rectangular groove of the end clamping block is connected with a group of gear racks, and the middle part of the inner wall of the rectangular groove of the end clamping block close to the rotating disc is provided with a group of arc-shaped supporting plates.

[0009] Further preferably, one end of the arc-shaped baffle close to the left and right sides of the upper end of the equipment body is fixed on the upper end surface of the left and right sides of the rectangular groove of the equipment body through bolts, and the left and right sides of the front and back ends of the conveying assembly are bearing connected to the front and back sides of the upper end surface of the inner wall of the equipment body, and the right rear end of the conveying assembly is connected with a driving motor through a shaft coupling.

[0010] Further preferably, the parts of the drying device located on the inner side of the equipment body are connected with a group of electric heating components, and the parts of the spraying equipment close to the inner side of the equipment body are connected with a group of spraying nozzles, and the end surfaces of the drying device and the spraying equipment are fixed on the inner wall of the rectangular groove of the equipment body through bolts.

[0011] Further preferably, the side surface of the elastic fixing plate close to the conveying assembly is fixed on the middle part of the outer surface of the conveying assembly through bolts, and the end of the fixed connecting shaft close to the conveying assembly is fixed in the groove of the middle part of the surface of the elastic fixing plate, and the other end of the elastic fixing plate is bearing connected to the inner wall of the circular groove of the middle part of the surface of the rotating disc close to the conveying assembly.

[0012] Further preferably, the middle part of the outer surface of the rotating disc is fixed with a group of sawtooth blocks, and the inner surface of the limiting ring is fixed to the middle part of the outer surface of the rotating disc, and the front and back ends of the fixed sliding rod are fixed to the inner wall of the rectangular sliding groove of the rotating disc, the end of the end clamping block is slidingly connected to the inner wall of the rectangular sliding groove of the rotating disc, and the middle part of the fixed sliding rod is connected to the end surface of the end clamping block through a spring, and the middle part of the fixed sliding rod is slidingly connected to the inner wall of the end circular groove of the end clamping block.

[0013] Further preferably, the end surfaces of the sliding engagement blocks are slidably connected to the inner walls of the rectangular grooves of the end clamping blocks, and the ends of the sliding engagement blocks are connected to the ends of the racks of the gear-rack set near the sliding engagement blocks, and the middle portions of the left and right ends of the gears of the gear-rack set are connected to the inner walls of the grooves of the end clamping blocks through torsion spring bearings, the other ends of the racks of the gear-rack set are fixed to the side surfaces of the unlocking knobs near the sliding engagement blocks, and the sides of the sliding engagement blocks away from the elastic fixing plates are in a slope shape.

[0014] Further preferably, the ends of the arc-shaped supporting plates are connected to the middle portions of the inner walls of the rectangular grooves of the end clamping blocks through spring telescopic rods, and the end portions of the sawtooth blocks connected to the outer side surfaces of the rotating discs are engaged with the sawtooth blocks of the fixed sawtooth plate near the conveying assembly, and the side surfaces of the fixed sawtooth plate near the inner walls of the front and back sides of the equipment body are fixed to the inner walls of the front and back sides of the equipment body at the middle portions of the upper ends.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] In the utility model, the fixed sawtooth plate and the rotating disc are arranged, a group of rotating discs are connected to the bottom end of the elastic fixing plate, the sawtooth blocks of the end portions of the fixed sawtooth plate fixed to the inner walls of the front and back sides of the equipment body can drive the rotating disc moved through the conveying assembly to rotate along the bottom end of the elastic fixing plate through the engagement structure, and the bottom end of the rotating disc can rotate and adjust the angle in the conveying process, so that the bicycle basket can rotate and accept the spraying treatment.

[0017] In the utility model, the end clamping block and the unlocking knob are arranged, the end clamping block in the end groove of the rotating disc can be driven to convey through one side of the grooves of the left and right sides of the equipment body through the transmission of the conveying assembly, the user can press the front and back sides of the bicycle basket to the upper end of the end clamping block and engage the arc-shaped supporting plate through the slope engagement blocks of the inner sides of the end clamping blocks, and when the end clamping block is conveyed to the left side of the equipment body, the user can press the unlocking knob to unlock through the structure of the gear-rack set and take down the finished bicycle basket. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the amplification structure schematic view of the conveying assembly of the utility model;

[0020] Figure 3 It is the amplification structure schematic view of the rotating disc of the utility model;

[0021] Figure 4 It is the enlarged structure schematic view of the end clamping block of the utility model;

[0022] Figure 5 It is the enlarged structure schematic view of the fixed sawtooth plate of the utility model.

[0023] In the drawing: 1, equipment main body;2, arc baffle;3, conveying assembly;4, drying device;5, spraying equipment;6, elastic fixing plate;7, end clamping block;8, fixed sawtooth plate;9, fixed connecting shaft;10, limit round ring;11, rotating disc;12, fixed sliding rod;13, sliding clamping block;14, unlocking knob;15, gear rack group;16, arc support plate. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a kind of automatic spraying and drying equipment of electric tricycle basket, including equipment main body 1, the left and right sides recess upper side middle part of equipment main body 1 is provided with arc baffle 2, and the inner side upper end middle part of equipment main body 1 is provided with a group of conveying assembly 3, the front and rear sides surface right side middle part of equipment main body 1 is provided with a group of spraying equipment 5 by being provided with rectangular through slot, and the front and rear sides surface left side middle part of equipment main body 1 is provided with a group of drying device 4 by being provided with rectangular through slot;

[0026] The outer side surface front and rear ends middle part of conveying assembly 3 is provided with a group of elastic fixing plate 6 equidistantly, and the inner wall front and rear sides middle part of equipment main body 1 is provided with a group of fixed sawtooth plate 8, the side of elastic fixing plate 6 away from conveying assembly 3 is provided with a group of end clamping block 7;

[0027] The surface middle part of the side of elastic fixing plate 6 away from conveying assembly 3 is provided with a group of fixed connecting shaft 9 by being provided with slot, and the end of fixed connecting shaft 9 is connected with a group of rotating disc 11, the outer side surface of rotating disc 11 close to the side middle part of elastic fixing plate 6 is connected with a group of limit round ring 10, and the surface middle part of the side of rotating disc 11 away from elastic fixing plate 6 is provided with a group of rectangular sliding slot in front and rear sides middle part, and the inner side of rectangular sliding slot of rotating disc 11 is provided with a group of fixed sliding rod 12;

[0028] The middle part of the end of the end clamping block 7 is provided with a group of rectangular grooves, and the front and back sides of the rectangular grooves of the end clamping block 7 are provided with a group of sliding clamping blocks 13, the middle part of the front and back sides of the end clamping block 7 is provided with a group of unlocking knobs 14, and the end of the sliding clamping block 13 located inside the rectangular groove of the end clamping block 7 is connected with a group of gear racks 15, and the middle part of the inner wall of the rectangular groove of the end clamping block 7 close to the rotating disc 11 is provided with a group of arc-shaped supporting plates 16.

[0029] As shown in the embodiment, Figure 1 The end of the arc-shaped baffle 2 close to the left and right sides of the upper end of the equipment body 1 is fixed on the left and right sides of the upper end of the rectangular groove of the equipment body 1 by bolts, and the left and right sides of the front and back ends of the conveying assembly 3 are bearing connected to the left and right sides of the upper end of the inner wall of the equipment body 1, and the right side of the back end of the conveying assembly 3 is connected with a driving motor through a shaft coupling; by connecting the arc-shaped baffle 2 on the left and right sides of the upper end of the groove of the equipment body 1, the spraying raw materials inside the equipment body 1 are prevented from spreading to the left and right sides outside.

[0030] As shown in the embodiment, Figure 1 The parts of the drying device 4 inside the equipment body 1 are connected with a group of electric heating assemblies, and the parts of the spraying equipment 5 close to the inside of the equipment body 1 are connected with a group of spraying nozzles, and the end surfaces of the drying device 4 and the spraying equipment 5 are fixed on the inner wall of the rectangular groove of the equipment body 1 by bolts; by providing a group of rectangular through grooves on the middle part of the left and right sides of the front and back surfaces of the equipment body 1, and installing the drying device 4 and the spraying equipment 5, the basket body is sprayed and dried by the drying device 4 and the spraying equipment 5.

[0031] As shown in the embodiment, Figure 2 and Figure 3 The surfaces of the elastic fixing plates 6 close to the conveying assembly 3 are fixed on the outer surfaces of the front and back sides of the conveying assembly 3 by bolts, and the end of the fixed connection shaft 9 close to the conveying assembly 3 is fixed in the groove inside the middle part of the surface of the elastic fixing plate 6, and the other end of the elastic fixing plate 6 is bearing connected to the inner wall of the circular groove of the rotating disc 11 close to the conveying assembly 3; by providing the conveying assembly 3 inside the equipment body 1, and by the conveying assembly 3 driving the elastic fixing plate 6 to convey along the inside of the equipment body 1, and driving the rotating disc 11 at the end of the elastic fixing plate 6 to convey together.

[0032] As shown in the embodiment, Figure 3As shown, the middle part of the outer surface of the rotating disc 11 is fixed with a group of sawtooth blocks, and the inner surface of the limiting ring 10 is fixed to the middle part of the outer surface of the rotating disc 11, and the front and rear ends of the fixed sliding rod 12 are fixed to the inner wall of the rectangular sliding groove of the rotating disc 11, the ends of the end clamping block 7 are slidingly connected to the inner wall of the rectangular sliding groove of the rotating disc 11, and the middle part of the fixed sliding rod 12 is slidingly connected to the end surface of the end clamping block 7 through the spring sleeved thereon, and the middle part of the fixed sliding rod 12 is slidingly connected to the end circular groove inner wall of the end clamping block 7; by providing a rectangular sliding groove on one side surface of the rotating disc 11, the end of the end clamping block 7 can slide along the rotating disc 11, and the spring sleeved on the middle part of the fixed sliding rod 12 in the recess of the rotating disc 11 can adjust the spacing size of the two end clamping blocks 7.

[0033] In this embodiment, as shown in the figure, Figure 4 The end surface of the sliding clamping block 13 is slidingly connected to the rectangular groove inner wall of the end clamping block 7, and the end of the sliding clamping block 13 is connected to the rack end of the gear rack set 15 close to the sliding clamping block 13, and the middle part of the gear left and right ends of the gear rack set 15 is connected to the groove inner wall of the end clamping block 7 through the torsion spring bearing, the other end of the rack of the gear rack set 15 is fixed to the side surface of the unlocking round knob 14 close to the sliding clamping block 13, and the side away from the elastic fixed plate 6 of the sliding clamping block 13 is inclined; by pressing the unlocking round knob 14 on the front and rear sides of the end clamping block 7, the unlocking round knob 14 can drive the sliding clamping block 13 connected to the other end of the rack to slide so as to be taken out by the user.

[0034] In this embodiment, as shown in the figure, Figure 5 The end of the arc-shaped supporting plate 16 is connected to the middle part of the rectangular groove inner wall of the end clamping block 7 through the spring telescopic rod, and the end of the sawtooth block engaged with the outer surface of the rotating disc 11 is meshed with the sawtooth block close to the conveying assembly 3 of the fixed sawtooth plate 8, and the side surface of the fixed sawtooth plate 8 close to the inner wall of the equipment body 1 on the front and rear sides of the inner wall of the equipment body 1 is fixed to the inner wall of the equipment body 1 on the front and rear sides of the inner wall of the equipment body 1. The middle part of the upper end; by providing a group of fixed sawtooth plates 8 on the inner wall of the equipment body 1 on the front and rear sides, the sawtooth blocks at the end of the fixed sawtooth plate 8 can drive the rotating disc 11 to rotate at an angle.

[0035] The use method and advantages of the electric tricycle basket automatic spraying and drying equipment are as follows:

[0036] As shown in the figure, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, first, the user can start the conveying assembly 3, the drying device 4 and the spraying device 5 inside the device body 1, so that the conveying assembly 3 can drive the elastic fixing plate 6 connected to the middle of the front and rear sides of the surface to move along the conveying direction of the conveying assembly 3, when the elastic fixing plate 6 drives the end clamping block 7 to move, the user can press and fit the upper end of the front and rear sides of the basket into the slope surface inside the sliding clamping block 13 in the groove of the end clamping block 7, and adjust the distance between the two sides of the end clamping block 7 through the sliding structure of the fixed sliding rod 12 at the end of the end clamping block 7.

[0037] The basket is conveyed into the inside of the device body 1, and the spraying and drying treatment of the drying device 4 and the spraying device 5, and the sawtooth block on the outer surface of the rotating disc 11 can rotate along the sawtooth block at the end of the sawtooth plate 8 fixed to the inner wall of the device body 1, so that the rotating disc 11 rotates around the end of the fixed connection shaft 9 inside the limiting ring 10 to adjust the rotation angle of the lower basket, and the arc-shaped baffle 2 on the left and right sides of the device body 1 avoids the paint from spreading out of the inside of the device body 1.

[0038] When the basket is conveyed to the left side of the device body 1, the unlocking knob 14 at the end of the end clamping block 7 can be pressed, so that the unlocking knob 14 can drive the sliding clamping block 13 on the other side to retract into the rectangular groove inside the end clamping block 7 through the gear and rack set 15, and the arc-shaped support plate 16 can support the end of the basket to be taken out of the rectangular groove inside the end clamping block 7.

[0039] The above shows and describes the basic principle, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic spraying and drying device for electric tricycle baskets, comprising a main body (1), characterized in that: Arc-shaped baffles (2) are provided on the upper middle part of the grooves on both sides of the main body of the equipment (1), and a set of conveying components (3) is provided on the upper middle part of the inner side of the main body of the equipment (1). A set of spraying equipment (5) is provided on the right middle part of the front and rear surfaces of the main body of the equipment (1) through a rectangular through groove, and a set of drying devices (4) is provided on the left middle part of the front and rear surfaces of the main body of the equipment (1) through a rectangular through groove. The outer surface of the conveying component (3) is provided with a set of elastic fixing plates (6) at equal intervals at the middle of the front and rear ends, and the inner wall of the main body of the equipment (1) is provided with a set of fixing sawtooth plates (8) at the middle of the front and rear sides. The elastic fixing plates (6) are provided with a set of end clamping blocks (7) on the side away from the conveying component (3). On the side of the elastic fixing plate (6) away from the conveying component (3), a set of fixed connecting shafts (9) are provided with slots in the middle. The ends of the fixed connecting shafts (9) are connected to a set of rotating disks (11). On the side of the outer surface of the rotating disks (11) close to the elastic fixing plate (6), a set of limiting rings (10) are provided. On the side of the rotating disks (11) away from the elastic fixing plate (6), a set of rectangular sliding grooves are provided in the middle of the front and rear sides. A set of fixed sliding rods (12) are provided inside the rectangular sliding grooves of the rotating disks (11). The end clamping block (7) has a set of rectangular grooves in the middle of its end, and a set of sliding locking blocks (13) are provided on both the front and rear sides of the rectangular groove of the end clamping block (7). A set of unlocking round buttons (14) are provided in the middle of the front and rear surfaces of the end clamping block (7). A set of gear racks (15) are connected to the end of the sliding locking block (13) located inside the rectangular groove of the end clamping block (7). A set of arc-shaped support plates (16) are provided in the middle of the inner wall of the rectangular groove on the side of the end clamping block (7) near the rotating disk (11).

2. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: The arc-shaped baffle (2) is fixed to the upper end surface of the rectangular groove on the left and right sides of the upper part of the equipment body (1) by bolts. The front and rear ends of the left and right sides of the conveying component (3) are connected to the upper end surface of the front and rear sides of the inner wall of the equipment body (1) by bearings. The rear end of the right side of the conveying component (3) is connected to a drive motor through a coupling.

3. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: The drying device (4) is connected to a set of electric heating components at the part located inside the equipment body (1), and the spraying device (5) is connected to a set of spraying nozzles at the part near the inside of the equipment body (1). The end surfaces of the drying device (4) and the spraying device (5) are fixed to the inner wall of the rectangular groove of the equipment body (1) by bolts.

4. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: The elastic fixing plate (6) is fixed to the middle of the front and rear sides of the outer surface of the transmission assembly (3) by bolts on one side surface of the elastic fixing plate (6), and the fixed connecting shaft (9) is fixed to the groove in the middle of the surface of the elastic fixing plate (6) on one side surface of the transmission assembly (3) on one side end of the elastic fixing plate (6), and the other end of the elastic fixing plate (6) is connected to the inner wall of the circular groove in the middle of the surface of the rotating disk (11) near the transmission assembly (3) by bearings.

5. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: A set of sawtooth blocks is fixed to the middle of the outer surface of the rotating disk (11), and the inner surface of the limiting ring (10) is fixed to the middle of the outer surface of the rotating disk (11). The front and rear ends of the fixed sliding rod (12) are fixed to the inner wall of the rectangular groove of the rotating disk (11). The ends of the end clamping block (7) are slidably connected to the inner wall of the rectangular groove of the rotating disk (11). The middle part of the fixed sliding rod (12) is connected to the end surface of the end clamping block (7) by a spring sleeve. The middle part of the fixed sliding rod (12) is slidably connected to the inner wall of the end groove of the end clamping block (7).

6. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: The end surfaces of the sliding engagement block (13) are all slidably connected to the inner wall of the rectangular groove of the end clamping block (7), and the end of the sliding engagement block (13) is connected to the end of the rack of the gear rack assembly (15) near the sliding engagement block (13). The middle of the left and right ends of the gear rack assembly (15) are connected to the inner wall of the groove of the end clamping block (7) through torsion spring bearings. The other end of the rack of the gear rack assembly (15) is fixed to the side surface of the unlocking button (14) near the sliding engagement block (13), and the side of the sliding engagement block (13) away from the elastic fixing plate (6) is sloped.

7. The automatic spraying and drying equipment for electric tricycle baskets according to claim 1, characterized in that: The ends of the arc-shaped support plate (16) are all connected to the middle of the rectangular groove of the end clamping block (7) by spring telescopic rods, and the ends of the sawtooth blocks connected to the outer surface of the rotating disk (11) are engaged with the sawtooth blocks at the end of the fixed sawtooth plate (8) near the conveying assembly (3), and the side surface of the fixed sawtooth plate (8) near the inner walls of the front and rear sides of the equipment body (1) is fixed to the middle of the upper end of the inner walls of the front and rear sides of the equipment body (1).