Portable leveling device for road construction

Abstract

The utility model provides a portable leveling device for road construction, which comprises a troweling machine, a supporting mechanism, trundles and a clamping mechanism, a protective net is fixedly arranged at the bottom of the troweling machine, the supporting mechanism is rotatably arranged on the side surface of the protective net, the trundles are fixedly arranged at the bottom of the supporting mechanism, and the clamping mechanism is fixedly arranged between the supporting mechanism and the protective net. According to the portable leveling device for road construction, the supporting mechanism and the protective net are arranged in a matched mode, it is ensured that the trundles can be lifted up when a troweling machine works, the trundles can fall down when the troweling machine is transported, transportation is convenient, it is ensured that the supporting mechanism can be fixed when the supporting mechanism is lifted up or falls down through the arrangement of the clamping mechanism, and the supporting mechanism can be fixed when the troweling machine is transported. And through cooperative arrangement of the screw rod and the troweling machine, it is ensured that the handle can be detached, the transportation space is reduced, and transportation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of trowel machines, in particular to a portable leveling device for road construction. Background Art

[0002] The main function of a trowel is to smooth and compact untreated or preliminarily treated roads to achieve a smooth state suitable for vehicle driving. Compared with traditional manual smoothing methods, a trowel for road construction can greatly improve work efficiency. It can quickly and accurately smooth and compact large areas of road surface, significantly shortening the construction period.

[0003] At present, the trowel machine generally adopts a gasoline engine to drive the trowel to rotate. The trowel is in the shape of a cross. The operator sits on the trowel or pushes the trowel to work. However, the existing trowel machines are generally not equipped with wheels. Therefore, they can only be transported to the construction road for leveling by hand. Since the road is constructed in sections, the trowel needs to be transported to another section for leveling after completing one section of the road surface. Therefore, it needs to be transported by transportation equipment. Some are transported by shuttle buses, but the cart cannot always follow the trowel and is prone to loss. Manual transportation is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a convenient leveling device for road construction to solve the problem that the existing trowel is inconvenient to move.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A portable leveling device for road construction, comprising:

[0007] A trowel machine, wherein a protective net is fixedly arranged at the bottom of the trowel machine; a support mechanism is rotatably arranged on the side of the protective net; casters are fixedly arranged at the bottom of the support mechanism; and a clamping mechanism is fixedly arranged between the support mechanism and the protective net.

[0008] Furthermore, the supporting mechanism includes two vertical plates fixedly arranged on the protective net, a horizontal axis rotatably arranged on the two vertical plates, and a supporting rod fixedly arranged on the horizontal axis, and the clamping mechanism is arranged on the vertical plates and the horizontal axis.

[0009] Furthermore, the support rod includes a limiting portion fixedly connected to the transverse axis, a bending portion fixedly arranged on the limiting portion, and a bearing portion fixedly arranged on the bending portion, and the caster is fixedly arranged under the bearing portion.

[0010] Furthermore, a support plate is fixedly provided at the bottom of the vertical plate of the protective net, and the limiting portion abuts against the support plate.

[0011] Furthermore, the clamping mechanism is provided with two groups at two ends of the horizontal axis, and the supporting mechanism is provided with at least three groups on the protective net.

[0012] Furthermore, the clamping mechanism includes a ratchet wheel fixedly arranged on the horizontal axis, a pawl rotatably arranged on the vertical plate, and a lever hand fixedly arranged on the pawl, and the ratchet wheel and the pawl are meshingly arranged.

[0013] Furthermore, a round shaft is fixedly arranged on the vertical plate, the ratchet pawl and the round shaft are rotatably connected, and a torsion spring is arranged between the ratchet pawl and the round shaft.

[0014] Furthermore, the ratchets on the two groups of the clamping mechanisms are inclined in opposite directions.

[0015] Furthermore, the trowel machine is provided with a handle, a screw is rotatably provided on the handle, a threaded hole is provided on the trowel machine, and the screw is threadedly connected to the threaded hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The portable leveling device for road construction described in the utility model ensures that the casters of the trowel machine can be lifted up when the trowel machine is in operation and can be lowered during transportation, thereby facilitating transportation. The setting of the clamping mechanism ensures that the supporting mechanism can be fixed when lifted up or lowered, thereby preventing the casters from affecting the operation of the trowel machine. The setting of the screw rod and the trowel machine ensures that the handle can be removed, thereby reducing the space during transportation and facilitating transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] In the attached picture:

[0020] Figure 1 This is a schematic diagram of the overall structure of the leveling device according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded handle portion of the embodiment of the utility model;

[0022] Figure 3 It is a partial schematic diagram of the protection net described in the embodiment of the utility model;

[0023] Figure 4 This is an exploded schematic diagram of the support mechanism described in an embodiment of the utility model;

[0024] Figure 5 This is an exploded schematic diagram of the clamping mechanism described in an embodiment of the utility model;

[0025] Figure 6 This is a diagram of the support rod in the lifted state according to the embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Trowel machine; 2. Protective net;

[0028] 3. Support mechanism; 301. Vertical plate; 302. Horizontal axis;

[0029] 303, support rod; 3031, limiting portion; 3032, bending portion; 3033, bearing portion;

[0030] 304, support board;

[0031] 4. Casters;

[0032] 5. Clamping mechanism; 501. Ratchet; 502. Paw; 503. Handle; 504. Round shaft; 505. Torsion spring;

[0033] 6. Handle; 7. Screw; 8. Threaded hole. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] This embodiment relates to a portable leveling device for road construction, the overall structure of which is as follows: Figure 1 and Figure 6 As shown, it includes a trowel machine 1, a supporting mechanism 3, casters 4, and a clamping mechanism 5.

[0039] Among them, a protective net 2 is fixedly installed at the bottom of the trowel machine 1, a supporting mechanism 3 is rotatably installed on the side of the protective net 2, a caster 4 is fixedly installed at the bottom of the supporting mechanism 3, and a clamping mechanism 5 is fixedly installed between the supporting mechanism 3 and the protective net 2.

[0040] It is worth mentioning that the trowel machine 1 in the present embodiment is a common trowel machine 1 in the prior art, which will not be described in detail here. The protective net 2 is installed around the lower side of the trowel machine 1, and the protective net 2 is coaxially arranged with the cross trowel of the trowel machine 1. Such an arrangement can improve the safety of the trowel machine 1. The support mechanism 3 can be rotated to the upper part of the protective net 2, which is a lifted state. When the trowel machine 1 is needed to operate, the support mechanism 3 is lifted to operate the trowel machine 1. The support mechanism 3 can also be rotated to the bottom of the trowel, which is a dropped state. When the trowel machine 1 is not needed in this area, the support mechanism 3 is dropped to move the trowel machine 1 to other areas. The support mechanism 3 drives the casters 4 to rotate, so that the trowel machine 1 can be moved. The function of the clamping mechanism 5 is to ensure that the support mechanism 3 can be maintained in the dropped state or the lifted state, so that the casters 4 are fixed in these two positions.

[0041] Based on the above overall introduction, an exemplary structure of a portable leveling device for road construction in this embodiment is as follows: Figure 4 and Figure 6 As shown, the support mechanism 3 includes two vertical plates 301 fixedly arranged on the protective net 2, a horizontal axis 302 rotatably arranged on the two vertical plates 301, and a support rod 303 fixedly arranged on the horizontal axis 302. The clamping mechanism 5 is arranged on the vertical plates 301 and the horizontal axis 302.

[0042] It should be noted that the vertical plate 301 and the protective net 2 are arranged vertically and extend outward from the protective net 2. The horizontal axis 302 is inserted into the two vertical plates 301 and rotates on the two vertical plates 301. Since the support rod 303 and the horizontal axis 302 are fixed, the support rod 303 can rotate with the horizontal axis 302. The support rod 303 can drive the caster 4 to lift or fall. The clamping mechanism 5 rotates on the vertical plate 301 and can control the horizontal axis 302 to be fixed at the set position.

[0043] As a preferred example, Figure 4As shown, the support rod 303 of this embodiment includes a limiting portion 3031 fixedly connected to the horizontal axis 302, a bending portion 3032 fixedly arranged on the limiting portion 3031, and a bearing portion 3033 fixedly arranged on the bending portion 3032, and the caster 4 is fixedly arranged under the bearing portion 3033. A support plate 304 is fixedly arranged at the bottom of the vertical plate 301 of the protective net 2, and the limiting portion 3031 abuts against the support plate 304.

[0044] Specifically, the support plate 304 is located at the lower part of the vertical plate 301. When the support rod 303 falls, the support plate 304 supports the limiting portion 3031 to ensure that the support rod 303 remains in this position after rotating to a certain angle. At this time, the limiting portion 3031 is parallel to the side of the protective net 2, and the bearing portion 3033 is parallel to the spatula. Since the caster 4 is installed on the bearing portion 3033, it can ensure that the caster 4 is in contact with the ground, which facilitates the rotation of the caster 4. The bending portion 3032 is used to connect the limiting portion 3031 and the bearing portion 3033. Therefore, the angle of the bending portion 3032 is less than 90°. The entire support rod 303 is set in a V shape and can be formed in one piece to ensure the strength of the support rod 303.

[0045] As a preferred embodiment, Figure 5 As shown, in this embodiment, the clamping mechanism 5 includes a ratchet 501 fixedly arranged on the horizontal shaft 302, a pawl 502 rotatably arranged on the vertical plate 301, and a lever 503 fixedly arranged on the pawl 502, and the ratchet 501 and the pawl 502 are meshed. A round shaft 504 is fixedly arranged on the vertical plate 301, and the pawl 502 is rotatably connected to the round shaft 504, and a torsion spring 505 is arranged between the pawl 502 and the round shaft 504.

[0046] It should be noted that the ratchet 501 is key-connected to the horizontal shaft 302 and is located outside the vertical plate 301. The pawl 502 is located on the upper part of the ratchet 501. The pawl 502 can rotate on the vertical plate 301. When the ratchet 501 is rotated to be lifted or dropped, the ratchet 501 and the pawl 502 are engaged to ensure that the support rod 303 is fixed at this position. The dial 503 and the pawl 502 can be integrally formed or welded. The dial 503 is convenient for controlling the engagement of the pawl 502 and the ratchet 501. The pawl 502 is engaged or separated, thereby controlling the rotation and fixation of the support rod 303. The round shaft 504 and the vertical plate 301 are vertically arranged. The pawl 502 rotates on the round shaft 504, thereby realizing the engagement or separation of the pawl 502 and the ratchet 501. The torsion spring 505 is inserted on the round shaft 504, one end of which is fixed to the round shaft 504, and the other end is fixed to the pawl 502. Due to the torsion spring 505, the pawl 502 can always have a force in the direction of the ratchet 501.

[0047] As a preferred example, Figure 5 and Figure 6As shown, the clamping mechanism 5 of this embodiment is relatively arranged with two groups at both ends of the horizontal axis 302, and the support mechanism 3 is arranged with at least three groups on the protective net 2. The ratchet wheels 501 on the two groups of clamping mechanisms 5 are tilted in opposite directions. Specifically, the three groups of support mechanisms 3 are arranged in this embodiment, which can ensure the stability of the trowel 1 when it moves, and facilitate the flipping of the support rod 303. The support mechanism 3 can be flipped by lifting one side of the support mechanism 3 in sequence. Of course, multiple groups of support mechanisms 3 can also be arranged according to actual conditions. The purpose of setting two groups of clamping mechanisms 5 is to ensure that the support mechanism 3 can be fixed in the position when it is lifted or dropped, so as to avoid the support mechanism 3 being flipped by external force when the trowel 1 is in operation or when the caster 4 is rotating, thereby improving the safety of the trowel 1. It should be noted that the teeth of the ratchet wheels 501 of the two groups of clamping mechanisms 5 are tilted in opposite directions, so that the support mechanism 3 can be fixed when it is lifted or dropped.

[0048] As a preferred example, Figure 2 and Figure 3 As shown, the trowel machine 1 of this embodiment is provided with a handle 6, a screw 7 is rotatably provided on the handle 6, a threaded hole 8 is provided on the trowel machine 1, and the screw 7 and the threaded hole 8 are screwed together. Specifically, the handle 6 is in the shape of a long rod, the screw 7 is inserted in the central axis of the handle 6 and rotates at the central axis, a fixing block is welded on the trowel machine 1, the threaded hole 8 is provided on the fixing block, and the screw 7 is screwed in the threaded hole 8, so as to ensure that the handle 6 can be fixed on the trowel machine 1, and the trowel machine 1 is convenient to control.

[0049] The portable leveling device for road construction in this embodiment ensures that the casters 4 can be lifted when the trowel machine 1 is in operation and can be lowered during transportation, thereby facilitating transportation. The clamping mechanism 5 is provided to ensure that the support mechanism 3 can be fixed when lifted or lowered to prevent the casters 4 from affecting the operation of the trowel machine 1. The screw rod 7 and the trowel machine 1 are provided to ensure that the handle 6 can be removed to reduce space during transportation and facilitate transportation.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable leveling device for road construction, characterized in that: include: A trowel machine (1), wherein a protective net (2) is fixedly arranged at the bottom of the trowel machine (1); A supporting mechanism (3) rotatably arranged on a side of the protective net (2); Casters (4) fixedly arranged at the bottom of the support mechanism (3); A clamping mechanism (5) fixedly arranged between the supporting mechanism (3) and the protective net (2); The support mechanism (3) comprises two vertical plates (301) fixedly arranged on the protective net (2), a horizontal axis (302) rotatably arranged on the two vertical plates (301), and a support rod (303) fixedly arranged on the horizontal axis (302); the clamping mechanism (5) is arranged on the vertical plates (301) and the horizontal axis (302); The clamping mechanism (5) comprises a ratchet wheel (501) fixedly arranged on the horizontal shaft (302), a pawl (502) rotatably arranged on the vertical plate (301), and a lever (503) fixedly arranged on the pawl (502); the ratchet wheel (501) and the pawl (502) are arranged in meshing engagement.

2. The portable leveling device for road construction according to claim 1, characterized in that: The support rod (303) comprises a limiting portion (3031) fixedly connected to the transverse axis (302), a bending portion (3032) fixedly arranged on the limiting portion (3031), and a bearing portion (3033) fixedly arranged on the bending portion (3032), and the caster (4) is fixedly arranged under the bearing portion (3033).

3. The portable leveling device for road construction according to claim 2, characterized in that: A support plate (304) is fixedly provided at the bottom of the vertical plate (301) of the protective net (2), and the limiting portion (3031) abuts against the support plate (304).

4. The portable leveling device for road construction according to claim 1, characterized in that: The clamping mechanism (5) is provided in two groups at two opposite ends of the horizontal axis (302), and the supporting mechanism (3) is provided in at least three groups on the protective net (2).

5. The portable leveling device for road construction according to claim 1, characterized in that: A round shaft (504) is fixedly arranged on the vertical plate (301), the ratchet (502) and the round shaft (504) are rotatably connected, and a torsion spring (505) is arranged between the ratchet (502) and the round shaft (504).

6. The portable leveling device for road construction according to claim 4, characterized in that: The ratchets (501) on the two sets of the clamping mechanisms (5) are inclined in opposite directions.

7. The portable leveling device for road construction according to any one of claims 1 to 6, characterized in that: The trowel machine (1) is provided with a handle (6), a screw rod (7) is rotatably provided on the handle (6), a threaded hole (8) is provided on the trowel machine (1), and the screw rod (7) and the threaded hole (8) are threadedly connected.

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