Cleaning trolley

Abstract

The utility model provides a cleaning trolley, and belongs to the technical field of cleaning supplies. The problem that in the prior art, a cleaning trolley is troublesome to assemble and manufacture is solved. The cleaning trolley comprises a trolley bottom plate located at the bottom of a trolley body, an upper carrying plate located at the top of the trolley body and a tray located between the trolley bottom plate and the upper carrying plate, at least three supporting vertical rods arranged around the edge of the tray are fixedly connected to the trolley bottom plate, and the upper carrying plate is fixedly connected with the upper ends of the supporting vertical rods. Each supporting vertical rod comprises a main plate body part and two vertical side plate parts which are oppositely arranged and are perpendicular to the main plate body part, an inserting groove is formed between the two vertical side plate parts of each supporting vertical rod, and clamping convex parts are arranged at the positions, corresponding to the supporting vertical rods, of the edge of the tray; and the clamping convex parts are inserted into the inserting grooves of the corresponding supporting vertical rods in a matched manner to form fixed connection. The utility model has the advantages of stable structure and convenience in assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning supplies and relates to a cleaning cart. Background Art

[0002] A cleaning cart is a professional tool cart commonly used in hotels and designed to improve the cleaning efficiency and quality of hotels. With the development of the hotel industry and the increasing requirements of customers for cleaning and sanitation, the cleaning cart plays an increasingly important role in the daily operation of hotels.

[0003] The structure of the existing cleaning cart is like a multifunctional cleaning cart for hotels disclosed in a patent document (Application No.: 201720935860.3), which includes a chassis, a first support rod, a second support rod, a trash can, wheels, a storage box, a first item box, a second item box, and a push handle. The first item box is placed in the middle of the first support rod and fixedly connected to the second support rod. During the actual manufacturing and use of this cleaning cart, the following deficiencies exist: The bottom of the first item box needs to be suspended. To ensure the stability of the installation of the first item placement box, currently, the first item placement box of the cleaning cart is generally fixedly connected to the first support rod and the second support rod through bolts. Although this structure can ensure the stability of the connection part, the assembly process requires many steps of tightening bolts, so the assembly is troublesome and the assembly time is long, which further leads to troublesome assembly and manufacturing of this cleaning cart. Summary of the Invention

[0004] The purpose of the present utility model is to address the above problems existing in the prior art and propose a cleaning cart. On the basis of ensuring the structural stability of the cleaning cart, the present utility model solves the problem that the existing cleaning cart is troublesome to assemble and manufacture.

[0005] The purpose of the present utility model can be achieved by the following technical solutions: A cleaning cart includes a vehicle bottom plate located at the bottom of the vehicle body, an upper loading plate located at the top of the vehicle body, and a tray located between the vehicle bottom plate and the upper loading plate. It is characterized in that at least three support vertical rods are fixedly connected to the vehicle bottom plate and arranged around the edge of the tray, the upper loading plate is fixedly connected to the upper ends of the support vertical rods, the support vertical rod includes a main board body part and two relatively arranged vertical side plate parts that are both perpendicular to the main board body part, a plug-in groove is formed between the two vertical side plate parts of the support vertical rod, a clamping convex part is respectively provided at a position corresponding to each support vertical rod on the edge of the tray, the clamping convex part is inserted into the plug-in groove of the corresponding support vertical rod in a matching manner and forms a fixed connection, an insertion seam is provided beside each clamping convex part on the tray, and at least one vertical side plate part of the support vertical rod is inserted into the insertion seam beside the corresponding clamping convex part in a matching manner.

[0006] During the assembly process of this cleaning vehicle, it is only necessary to align the clamping convex part on the tray with the insertion groove on the supporting vertical rod, and fix the clamping convex part in the corresponding insertion groove, then the fixed connection between the supporting vertical rod and the tray can be completed. In this way, each supporting vertical rod is assembled onto the tray in sequence. After the assembly of the supporting vertical rod and the tray is completed, the supporting vertical rod is assembled onto the vehicle bottom plate, and finally the loading plate and the supporting vertical rod are assembled. This method can make the assembly of the supporting vertical rod and the tray more convenient, thereby improving the convenience of the overall assembly of the cleaning vehicle.

[0007] In this cleaning vehicle, the supporting vertical rod includes a main board body part and two vertically arranged side board parts that are oppositely arranged and perpendicular to the main board body part. The cross-section of the supporting vertical rod with this structure is U-shaped, so it has good structural strength and can improve the structural stability of the cleaning vehicle. After the assembly of the tray and the supporting vertical rod is completed, the vertical side board part of the supporting vertical rod can be inserted into the insertion seam on the tray for positioning. In this way, through the insertion and positioning of the clamping convex part and the insertion groove on the supporting vertical rod, and the insertion and positioning of the vertical side board part and the insertion seam, double fixation is achieved, so the anti-shaking ability of the tray can be greatly improved, making the installation of the tray more stable. Moreover, the supporting vertical rod is fixedly connected to the vehicle bottom plate and the loading plate respectively, ensuring that each supporting vertical rod has good installation stability. The number of supporting vertical rods is at least three and they are arranged around the edge of the tray. In this way, the tray is supported and fixed at at least three points, making the balance and installation stability of the tray better and increasing the bearing capacity.

[0008] In the above-mentioned cleaning vehicle, the vehicle bottom plate is rectangular, and the number of the supporting vertical rods is three. Two of the supporting vertical rods are respectively fixedly connected to the left and right side edges of the vehicle bottom plate, and the other supporting vertical rod is fixedly connected to the middle of the rear side edge of the vehicle bottom plate. This method makes the tray supported and fixed at three points, making the balance and installation stability of the tray better. At the same time, the arrangement of the three supporting vertical rods does not affect the placement space of the vehicle bottom plate, so it is convenient to place items on the vehicle bottom plate, improving the usability and practicality of the cleaning vehicle. The supporting vertical rod located at the rear side edge of the vehicle bottom plate is in the middle of the rear side edge of the vehicle bottom plate, which can make the left and right balance of the tray better and improve the installation stability of the tray.

[0009] In the above-mentioned cleaning vehicle, the two vertical side board parts and the main board body part are of an integral structure, and the two vertical side board parts are respectively vertically connected to both side edges of the main board body part. The cross-section of the supporting vertical rod with this structure is U-shaped, so it has good structural strength and can improve the structural stability of the cleaning vehicle.

[0010] In the above-mentioned cleaning vehicle, a horizontally arranged lower support plate and an upper limit plate are integrally formed on the inner side wall of the main board body. The lower support plate, the upper limit plate, the main board body and the two vertical side plate parts enclose the above-mentioned insertion groove. By providing the insertion groove, through the insertion and positioning of the clamping convex part and the insertion groove, and the insertion and positioning of the vertical side plate part and the insertion seam, the anti-shaking ability of the tray can be greatly improved, making the balance and installation stability of the tray better and the load-bearing capacity increased. By integrally forming the lower support plate and the upper limit plate on the inner side wall of the main board body to form the insertion groove, such a structure is relatively convenient to manufacture, and the insertion groove can be formed with less material, so the advantage of saving materials can be achieved. The lower support plate and the upper limit plate are both horizontally arranged, which can better support and position the clamping convex part, thus improving the stability of the tray installation.

[0011] In the above-mentioned cleaning vehicle, the bottom surface of the clamping convex part abuts against the lower support plate, a bayonet is formed on the upper limit plate, and a limit clamping convex for clamping and cooperating with the bayonet is provided on the top surface of the clamping convex part. After the limit clamping convex is clamped in the bayonet, an anti-disconnection structure is formed, which can improve the reliability of the connection between the tray and the support column, making the overall structure of the cleaning vehicle more stable.

[0012] In the above-mentioned cleaning vehicle, the edge of the vehicle bottom plate has lower fixing grooves corresponding to each support vertical rod one by one, the notch of the lower fixing groove faces upward, the bottom surface of the upper loading plate has upper fixing grooves corresponding to each support vertical rod one by one, the notch of the upper fixing groove faces downward, the lower ends of each support vertical rod are respectively fixedly inserted into the corresponding lower fixing grooves, and the upper ends of each support vertical rod are respectively fixedly inserted into the corresponding upper fixing grooves. After the support vertical rod and the tray are assembled, only need to align the lower ends of each support vertical rod with the lower fixing grooves on the vehicle bottom plate first, and then insert each support vertical rod downward to complete the assembly of the support vertical rod and the vehicle bottom plate, and the assembly is very convenient. Then, align the upper fixing grooves on the upper loading plate with the upper ends of each support vertical rod respectively, and then press the upper loading plate downward to complete the assembly of the support vertical rod and the upper loading plate, and the assembly is also very convenient, finally making the cleaning vehicle have strong assembly convenience.

[0013] In the above-mentioned cleaning vehicle, a first screw hole is formed on the lower end surface of the support vertical rod, a through hole concentric with the first screw hole is formed on the vehicle bottom plate, and a first bolt passing through the through hole and threadedly connected with the first screw hole is provided on the vehicle bottom plate. By providing the first bolt, the connection between the support vertical rod and the vehicle bottom plate can be made more stable, thereby improving the structural stability of the cleaning vehicle.

[0014] In the above-mentioned cleaning vehicle, a second screw hole is formed on the upper end surface of the supporting vertical rod, a second through hole concentric with the second screw hole is formed on the upper loading plate, and a second bolt is provided on the upper loading plate, which passes through the second through hole and is threadedly connected to the second screw hole. By providing the second bolt, the connection between the supporting vertical rod and the upper loading plate can be made more stable, thereby improving the structural stability of the cleaning vehicle.

[0015] In the above-mentioned cleaning vehicle, insertion seams are formed on both sides of the clamping convex part on the rear side edge of the tray, and the two vertical side plate parts of the supporting vertical rod at the rear side edge of the vehicle bottom plate are respectively inserted into the insertion seams on both sides of the clamping convex part in a matching manner. Each vertical side plate part of the supporting vertical rod forms an insertion positioning with the corresponding insertion seam, which can further improve the connection stability between the supporting vertical rod and the tray, make the tray installation more stable, not easy to shake during use, and the bearing capacity is improved.

[0016] In the above-mentioned cleaning vehicle, a reinforcing rib is integrally formed on the inner side wall of the main board body part above the upper limit plate and connected to the top surface of the upper limit plate. The reinforcing rib can strengthen the structure of the upper limit plate, prevent the upper limit plate from deforming, so that the tray can be more stably clamped and positioned, and the installation stability of the tray is improved.

[0017] In the above-mentioned cleaning vehicle, the two supporting vertical rods at the left and right side edges of the vehicle bottom plate are arranged oppositely along the width direction of the vehicle bottom plate, and the openings of the insertion grooves on the two supporting vertical rods face each other. The opening of the insertion groove on the supporting vertical rod at the rear side edge of the vehicle bottom plate faces the front of the vehicle body. In this way, during the assembly process of the cleaning vehicle, each supporting vertical rod only needs to be spliced onto the tray along the direction close to the tray, making the assembly between the supporting vertical rod and the tray very convenient.

[0018] Compared with the prior art, the present cleaning vehicle has the following advantages:

[0019] 1. During the assembly process of the present cleaning vehicle, only the insertion groove on the supporting vertical rod needs to be aligned with the clamping convex part on the tray, and the clamping convex part is horizontally inserted into the corresponding insertion groove through the opening of the insertion groove, then the fixed insertion between the supporting vertical rod and the tray can be completed. In this way, each supporting vertical rod is assembled onto the tray in turn. This method can make the assembly between the supporting vertical rod and the tray more convenient, thereby improving the convenience of the overall assembly of the cleaning vehicle.

[0020] 2. Through the insertion positioning of the clamping convex part and the insertion groove, and the cooperation with the insertion positioning of the vertical side plate part and the insertion seam, the anti-shaking ability of the tray of the present cleaning vehicle can be greatly improved, making the balance and installation stability of the tray better, and the bearing capacity increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present cleaning vehicle.

[0022] Figure 2 is Figure 1 An enlarged view of part A in

[0023] Figure 3 A three-dimensional structural schematic diagram of the tray.

[0024] Figure 4 A three-dimensional structural schematic diagram of the support vertical pole.

[0025] Figure 5 A side view of this cleaning vehicle.

[0026] Figure 6 is Figure 5 A sectional view taken along A-A in

[0027] Figure 7 is Figure 6 An enlarged view of part A in

[0028] Figure 8 is Figure 6 An enlarged view of part B in

[0029] Figure 9 is Figure 6 An enlarged view of part C in

[0030] Figure 10 A three-dimensional structural schematic diagram of the vehicle bottom plate.

[0031] Figure 11 A three-dimensional structural schematic diagram from the perspective of the bottom surface of the upper loading plate.

[0032] In the figure, 1. vehicle bottom plate; 11. lower fixing groove; 12. through hole 1; 2. upper loading plate; 21. upper fixing groove; 22. through hole 2; 3. tray; 31. clamping convex part; 311. limiting clamping convex; 32. insertion joint seam; 4. support vertical pole; 41. vertical side plate part; 42. insertion groove; 43. main board body part; 44. lower support plate; 45. upper limiting plate; 451. bayonet; 46. first screw connection hole; 47. second screw connection hole; 48. reinforcing rib; 5. first bolt; 6. second bolt; 7. roller. Specific embodiments

[0033] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0034] Embodiment 1

[0035] As Figure 1As shown in the figure, this cleaning vehicle includes a vehicle bottom plate 1 located at the bottom of the vehicle body and an upper loading plate 2 located at the top of the vehicle body. The vehicle bottom plate 1 is rectangular. A tray 3 is also provided between the vehicle bottom plate 1 and the upper loading plate 2. Rollers 7 are fixedly connected to the vehicle bottom plate 1, making it more convenient for the cleaning vehicle to move. Three support vertical rods 4 are fixedly connected to the vehicle bottom plate 1 and are arranged around the edge of the tray 3. The upper loading plate 2 is fixedly connected to the upper ends of the respective support vertical rods 4. Two of the support vertical rods 4 are respectively fixedly connected to the left and right side edges of the vehicle bottom plate 1, and the other support vertical rod 4 is fixedly connected to the rear side edge of the vehicle bottom plate 1.

[0036] Furthermore, as Figures 1 to 3 shown, the support vertical rod 4 includes a main board body part 43 and two vertically arranged side plate parts 41 that are opposite to each other and perpendicular to the main board body part 43. An insertion groove 42 is formed between the two vertically arranged side plate parts 41 of the support vertical rod 4. At positions corresponding to each support vertical rod 4 on the edge of the tray 3, clamping protrusions 31 are respectively provided. The clamping protrusions 31 are fixedly inserted into the insertion grooves 42 of the corresponding support vertical rods 4 to form a fixed connection. Insertion seams 32 are provided beside each clamping protrusion 31 on the tray 3. At least one of the vertically arranged side plate parts 41 of the support vertical rod 4 is inserted into the insertion seam 32 beside the corresponding clamping protrusion 31.

[0037] As Figure 2 and Figure 3 shown, insertion seams 32 are formed on both sides of the clamping protrusion 31 on the rear side edge of the tray 3. The two vertically arranged side plate parts 41 of the support vertical rod 4 located at the rear side edge of the vehicle bottom plate 1 are inserted into the insertion seams 32 on both sides of the corresponding clamping protrusion 31 one by one. There is only one insertion seam 32 beside the clamping protrusions 31 on the left and right side edges of the tray 3. Therefore, only one of the vertically arranged side plate parts 41 of the corresponding support vertical rod 4 is inserted into the insertion seam 32 beside the corresponding clamping protrusion 31.

[0038] As Figure 1 shown, the two support vertical rods 4 at the left and right side edges of the vehicle bottom plate 1 are arranged opposite to each other along the width direction of the vehicle bottom plate 1, and the openings of the insertion grooves 42 of the two support vertical rods 4 face each other. The support vertical rod 4 located at the rear side edge of the vehicle bottom plate 1 is located in the middle of the rear side edge of the vehicle bottom plate 1, and the opening of the insertion groove 42 on this support vertical rod 4 faces the front of the vehicle body.

[0039] As Figure 4As shown, the two vertical side plate parts 41 of the supporting vertical rod 4 and the main board body part 43 are of an integral structure, and the two vertical side plate parts 41 are respectively vertically connected to both sides of the main board body part 43. The inner side wall of the main board body part 43 also has a lower support plate 44 and an upper limit plate 45 that are both horizontally arranged. The lower support plate 44, the upper limit plate 45, the main board body part 43, and the two vertical side plate parts 41 enclose the above-mentioned insertion groove 42. An intensifying rib 48 is integrally formed on the inner side wall of the main board body part 43, which is located above the upper limit plate 45 and is connected to the top surface of the upper limit plate 45. The intensifying rib 48 can strengthen the structure of the upper limit plate 45, prevent the upper limit plate 45 from deforming, so that the tray 3 can be more stably clamped and positioned, and improve the installation stability of the tray 3.

[0040] Combined with Figure 2 、 Figure 4 、 Figures 5 to 7 As shown, the bottom surface of the clamping convex part 31 abuts against the lower support plate 44. A clamping opening 451 is formed on the upper limit plate 45, and a limit clamping convex 311 that is clamped and matched with the clamping opening 451 is provided on the top surface of the clamping convex part 31. After the limit clamping convex 311 is clamped in the clamping opening 451, an anti-detachment structure is formed, which can improve the reliability of the connection between the tray 3 and the support column, making the overall structure of the cleaning vehicle more stable.

[0041] As Figure 10 and Figure 11 shown, the edge of the vehicle bottom plate 1 has lower fixing grooves 11 arranged corresponding to the respective supporting vertical rods 4 one by one. The openings of the lower fixing grooves 11 face upward. The bottom surface of the upper loading plate 2 has upper fixing grooves 21 arranged corresponding to the respective supporting vertical rods 4 one by one. The openings of the upper fixing grooves 21 face downward. The lower ends of the respective supporting vertical rods 4 are fixedly inserted into the corresponding lower fixing grooves 11, and the upper ends of the respective supporting vertical rods 4 are fixedly inserted into the corresponding upper fixing grooves 21.

[0042] As Figure 9 and Figure 10 shown, a first screw hole 46 is formed on the lower end surface of the supporting vertical rod 4. A first through hole 12 that is concentric with the first screw hole 46 is formed on the vehicle bottom plate 1. A first bolt 5 that passes through the first through hole 12 and is threadedly connected to the first screw hole 46 is provided on the vehicle bottom plate 1. By providing the first bolt 5, the connection between the supporting vertical rod 4 and the vehicle bottom plate 1 can be made more stable, thereby improving the structural stability of the cleaning vehicle.

[0043] As Figure 8 and Figure 11As shown in the figure, a second screw hole 47 is formed in the upper end surface of the supporting vertical rod 4, a second through hole 22 concentric with the second screw hole 47 is formed in the upper loading plate 2, and a second bolt 6 is provided on the upper loading plate 2 and passes through the second through hole 22 and is threadedly connected to the second screw hole 47. By providing the second bolt 6, the connection between the supporting vertical rod 4 and the upper loading plate 2 can be made more stable, thereby improving the structural stability of the cleaning vehicle.

[0044] During the assembly process of this cleaning vehicle, first, the installation of three supporting vertical rods 4 and the tray 3 is carried out. Specifically, first align the insertion grooves 42 on the supporting vertical rod 4 with the clamping protrusions 31 on the tray 3, and horizontally insert the clamping protrusions 31 into the corresponding insertion grooves 42 through the notch of the insertion grooves 42, then the fixed insertion of the supporting vertical rod 4 and the tray 3 can be completed. In this way, each supporting vertical rod 4 is assembled onto the tray 3 in turn.

[0045] After the assembly of the supporting vertical rod 4 and the tray 3 is completed, first align the lower ends of each supporting vertical rod 4 with the lower fixing grooves 11 on the vehicle bottom plate 1 respectively, and then insert each supporting vertical rod 4 downward to complete the assembly of the supporting vertical rod 4 and the vehicle bottom plate 1. After that, align the upper fixing grooves 21 on the upper loading plate 2 with the upper ends of each supporting vertical rod 4 respectively, and then press the upper loading plate 2 downward to complete the assembly of the supporting vertical rod 4 and the upper loading plate 2.

[0046] Embodiment 2

[0047] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that the number of supporting vertical rods 4 is four, two of which are connected to the left and right side edges of the vehicle bottom plate 1, and the other two supporting vertical rods 4 are symmetrically arranged at the rear side edge of the vehicle bottom plate 1.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0049] Although terms such as 1, vehicle floor board; 11, lower fixing groove; 12, through hole 1; 2, upper loading board; 21, upper fixing groove; 22, through hole 2; 3, tray; 31, clamping convex part; 311, limiting clamping convex; 32, insertion joint; 4, support vertical rod; 41, vertical side plate part; 42, insertion groove; 43, main board body part; 44, lower support plate; 45, upper limiting plate; 451, bayonet; 46, screw connection hole 1; 47, screw connection hole 2; 48, reinforcing rib; 5, bolt 1; 6, bolt 2; 7, roller are used more frequently in this text, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A cleaning vehicle, comprising a vehicle bottom plate (1) located at the bottom of the vehicle body, an upper loading plate (2) located at the top of the vehicle body, and a tray (3) located between the vehicle bottom plate (1) and the upper loading plate (2), characterized in that: At least three supporting uprights (4) arranged around the edge of the tray (3) are fixedly connected to the vehicle bottom plate (1); the upper loading plate (2) is fixedly connected to the upper end of each supporting upright (4); the supporting upright (4) comprises a main body (43) and two vertical side plates (41) arranged opposite to each other and perpendicular to the main body (43); a plug-in groove (42) is formed between the two vertical side plates (41) of the supporting upright (4); A snap-fitting protrusion (31) is provided at a position on the edge corresponding to each supporting upright (4), and the snap-fitting protrusion (31) is matched and inserted into an inserting groove (42) of the corresponding supporting upright (4) to form a fixed connection, and an inserting seam (32) is provided on the tray (3) beside each snap-fitting protrusion (31), and at least one vertical side plate (41) of the supporting upright (4) is matched and inserted into the inserting seam (32) beside the corresponding snap-fitting protrusion (31).

2. The cleaning vehicle according to claim 1, characterized in that: The vehicle floor plate (1) is rectangular, and the number of the supporting uprights (4) is three, two of which are fixedly connected to the left and right sides of the vehicle floor plate (1), respectively, and the other supporting upright (4) is fixedly connected to the middle of the rear side of the vehicle floor plate (1).

3. The cleaning vehicle according to claim 1 or 2, characterized in that: A lower support plate (44) and an upper limit plate (45) are integrally formed on the inner side wall of the main board body (43), and both are arranged horizontally. The lower support plate (44), the upper limit plate (45), the main board body (43) and the two vertical side plates (41) are enclosed to form the above-mentioned plug-in groove (42).

4. The cleaning vehicle according to claim 3, characterized in that: The bottom surface of the snap-fitting protrusion (31) abuts against the lower support plate (44), a snap-fitting opening (451) is provided on the upper limit plate (45), and the top surface of the snap-fitting protrusion (311) is snap-fitted with the snap-fitting opening (451).

5. The cleaning vehicle according to claim 1 or 2, characterized in that: The edge of the vehicle bottom plate (1) has lower fixing grooves (11) arranged in one-to-one correspondence with each supporting upright pole (4), and the notch of the lower fixing groove (11) is arranged upwards; the bottom surface of the upper loading plate (2) has upper fixing grooves (21) arranged in one-to-one correspondence with each supporting upright pole (4), and the notch of the upper fixing groove (21) is arranged downwards; the lower end of each supporting upright pole (4) is respectively fixedly inserted into the corresponding lower fixing groove (11), and the upper end of each supporting upright pole (4) is respectively fixedly inserted into the corresponding upper fixing groove (21).

6. The cleaning vehicle according to claim 1 or 2, characterized in that: A screw hole (46) is provided on the lower end surface of the support upright (4), a through hole (12) coaxially arranged with the screw hole (46) is provided on the vehicle bottom plate (1), and a bolt (5) passing through the through hole (12) and threadedly connected with the screw hole (46) is provided on the vehicle bottom plate (1).

7. The cleaning vehicle according to claim 1 or 2, characterized in that: The upper end surface of the support upright (4) is provided with a second screw hole (47), the upper carrier plate (2) is provided with a second through hole (22) arranged concentrically with the second screw hole (47), and the upper carrier plate (2) is provided with a second bolt (6) passing through the second through hole (22) and threadedly connected to the second screw hole (47).

8. The cleaning vehicle according to claim 2, characterized in that: The inserting seams (32) are formed on both sides of the clamping protrusion (31) located on the rear side of the tray (3), and the two vertical side plate parts (41) of the supporting upright rod (4) located on the rear side of the vehicle bottom plate (1) are respectively matched and inserted into the inserting seams (32) on both sides of the clamping protrusion (31).

9. The cleaning vehicle according to claim 3, characterized in that: A reinforcing rib (48) is integrally formed on the inner side wall of the main plate body (43) and is located above the upper limit plate (45) and connected to the top surface of the upper limit plate (45).

10. The cleaning vehicle according to claim 2, characterized in that: The two support vertical rods (4) at the left and right sides of the vehicle floor (1) are arranged opposite to each other along the width direction of the vehicle floor (1), and the notches of the plugging grooves (42) on the two support vertical rods (4) are opposite to each other, and the notches of the plugging grooves (42) on the support vertical rods (4) at the rear side of the vehicle floor (1) are arranged toward the front of the vehicle body.

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