Operation protection assembly of concrete troweling machine

Abstract

The utility model relates to the technical field of troweling machines, in particular to a concrete troweling machine operation protection assembly which comprises a protection assembly body installed outside a troweling machine body to isolate a spatula, the protection assembly body comprises at least two protective covers, one protective cover is arranged on the inner side of the other protective cover in a sliding mode, and the other protective cover is arranged on the outer side of the troweling machine body. The protective cover is provided with a locking structure used for limiting sliding of the protective cover, and when the spatula is used, the locking structure is released so that the corresponding protective cover can slide around the other protective cover, and therefore the spatula is exposed. According to the spatula, the two protective covers which are in sliding fit with each other are arranged, the spatula can be protected when the protective covers are completely unfolded, and when the spatula needs to be replaced, only sliding limitation of the locking structure on the protective cover needs to be relieved firstly, the protective cover is pushed to rotate relative to the other protective cover till the protective cover is completely pushed into the other protective cover, and then the spatula can be replaced. And the shield does not need to be wholly disassembled, so that the spatula is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of troweling machines, in particular to an operation protection component for a concrete troweling machine. Background Art

[0002] A troweling machine is a mechanical device used for concrete floor construction. Its core structure usually includes a trowel rotor driven by a gasoline engine or an electric motor. There are 2 to 4 trowels installed on the bottom surface of the cross on the middle of the rotor. During operation, the rotating trowels driven by the motor are used to smooth the concrete floor. In order to provide safety protection for operators, existing troweling machines usually also set a protective cover outside the trowels to prevent splashing mortar or other materials from hurting the operator during the operation.

[0003] Existing technical problems: The existing protective cover is generally installed on the troweling machine in a bolt connection manner as a whole. When maintaining the trowels, the whole protective cover needs to be disassembled, which is rather troublesome. In order to save time, usually the bottom of the troweling machine is directly lifted manually to replace the trowels. However, due to the large weight of the troweling machine, it is rather laborious to lift it. At the same time, it is difficult to maintain balance and stability during the replacement process, and it is easy to shake, posing a safety hazard. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide an operation protection component for a concrete troweling machine to solve the technical problem that the existing protective cover of the troweling machine is not convenient for replacing the trowels.

[0005] Based on the above purpose, the utility model provides an operation protection component for a concrete troweling machine, including a protection component installed outside the troweling machine body to isolate the trowels. The protection component includes at least two protective covers, and one of the protective covers is slidably arranged inside the other protective cover. The protective cover is provided with a locking structure for restricting its sliding. During use, the locking structure is released so that the corresponding protective cover can slide around the other protective cover, thereby exposing the trowels.

[0006] As a preferred technical solution of the utility model, each protective cover includes a number of spaced-apart enclosing rods and auxiliary baffles for connecting adjacent enclosing rods. A chute is opened inside the enclosing rods of one of the protective covers, and a sliding block matching the chute is arranged outside the enclosing rods of the other protective cover.

[0007] As a preferred technical solution of the utility model, the locking structure includes:

[0008] A mounting bracket with one end arranged at the upper end of the enclosing rod;

[0009] A mounting plate connected to the other end of the mounting bracket. The mounting plate is provided with a first threaded groove;

[0010] A threaded rod with one end threadedly connected to the first threaded groove, and the other end of the threaded rod is threadedly connected to a second threaded groove opened outside the troweling machine body.

[0011] As a preferred technical solution of the present invention, the mounting plate is in the structure of an arc-shaped plate, so that the mounting plate fits the cylindrical outer part of the troweling machine body.

[0012] As a preferred technical solution of the present invention, each of the mounting plates is provided with at least two first threaded grooves, and correspondingly, each of the mounting plates is provided with at least two threaded rods.

[0013] As a preferred technical solution of the present invention, the protective cover is further provided with an opening and closing structure, and the opening and closing structure is used to open a part of the protective cover.

[0014] As a preferred technical solution of the present invention, the opening and closing structure includes:

[0015] A fixing plate provided between the surrounding rod and the auxiliary baffle, and a through groove is opened on the surface of the fixing plate;

[0016] A plugging member for plugging the through groove.

[0017] As a preferred technical solution of the present invention, the plugging member is a door panel rotatably connected to the fixing plate.

[0018] As a preferred technical solution of the present invention, one end of the door panel is connected with a rotating shaft, and the rotating shaft is rotatably connected with a hinge seat arranged outside the fixing plate.

[0019] As a preferred technical solution of the present invention, a locking member is arranged between the door panel and the fixing plate.

[0020] The beneficial effects of the present invention: The present invention forms protection for the trowel when the protective covers are fully unfolded by arranging two mutually sliding protective covers. When the trowel needs to be replaced, only the sliding restriction of the locking structure on the protective covers needs to be released first, and the protective cover is pushed to rotate relative to the other protective cover until the protective cover is completely pushed into the other protective cover, so that the shielding of the protective cover on the trowel can be released, and there is no need to disassemble the whole protective cover, which is convenient for replacing the trowel. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1Schematic diagram of the external three-dimensional structure of the present utility model;

[0023] Figure 2 Schematic diagram of the top-down three-dimensional structure of the present utility model;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the present utility model in the storage state;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the surrounding rod, auxiliary baffle, mounting bracket and mounting plate of the present utility model.

[0026] The labels in the figure are: 1, surrounding rod; 2, auxiliary baffle; 3, fixing plate; 4, through groove; 5, door panel; 6, rotating shaft; 7, hinge seat; 8, mounting bracket; 9, mounting plate; 10, first thread groove; 11, threaded rod; 12, chute; 13, slider; 14, reinforcing strip; 15, troweling machine body. Specific embodiments

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0029] As Figure 1 and Figure 2 shown, a concrete troweling machine operation protection component includes a protection component installed outside the troweling machine body 15 to isolate the trowel. The protection component includes two protective covers, one of the protective covers is slidably arranged inside the other protective cover, and the protective cover is provided with a locking structure for restricting its sliding. During use, the locking structure is released so that the corresponding protective cover can slide around the other protective cover, thereby exposing the trowel;

[0030] Adopting the above technical solution can maintain the trowel without disassembling the protective cover. During use, first release the sliding restriction of the locking structure on the protective cover, and push the protective cover to rotate relative to the other protective cover until the protective cover is completely pushed into the other protective cover, and the two protective covers completely overlap, then the shielding of the protective cover on the trowel can be removed, facilitating the replacement and maintenance of the trowel. After maintenance, just rotate the protective cover to reset it, so that the left and right protective covers fully expand to form protection for the trowel, and then use the locking structure to restrict the sliding of the protective cover to prevent accidents caused by the opening of the protective cover due to external force during the operation of the power trowel, thus completing the maintenance. Compared with the prior art, this protection component does not need to disassemble and install the whole protection component from the power trowel body 15 before and after maintenance, but only partial disassembly, so the operation is more convenient.

[0031] As Figure 3 and Figure 4 shown, in this embodiment, each protective cover includes a plurality of spacing-arranged enclosing rods 1 and auxiliary baffles 2 for connecting adjacent enclosing rods 1. A chute 12 is opened on the inner side of the enclosing rod 1 of one protective cover, and a slider 13 matching the chute 12 is arranged on the outer side of the enclosing rod 1 of the other protective cover;

[0032] Adopting the above technical solution can enable the two protective covers to slide relative to each other. By arranging the slider 13 on the outer side of the enclosing rod 1 of one protective cover and opening the chute 12 on the inner side of the enclosing rod 1 of the other protective cover, the slider 13 and the chute 12 can be slidably matched, thereby realizing that the two protective covers can slide relative to each other.

[0033] As Figure 3 and Figure 4 shown, in this embodiment, the locking structure includes: a mounting frame 8 provided at one end on the upper end of the enclosing rod 1; two mounting frames 8 are provided on each enclosing rod 1, and a reinforcing bar 14 is arranged between the mounting frames 8 to improve the structural strength. A mounting plate 9 connected to the other end of the mounting frame 8, and a first thread groove 10 is opened on the mounting plate 9; a threaded rod 11 with one end threadedly connected to the first thread groove 10, and the other end of the threaded rod 11 is threadedly connected to a second thread groove opened outside the power trowel body 15;

[0034] Adopting the above technical solution can release the rotation restriction on the protective cover. When it is necessary to rotate one of the protective covers, by rotating the threaded rod 11 on the surface of the mounting plate 9 of the protective cover, the threaded rod 11 can move in a direction away from the power trowel body 15 until the threaded rod 11 is disengaged from the second thread groove outside the power trowel body 15, then the rotation restriction on the protective cover can be released. In order to facilitate the rotation of the threaded rod 11, a turning handle is arranged at the end of the threaded rod 11 away from the power trowel body 15, which is convenient for operation.

[0035] As Figure 1As shown, in this embodiment, the mounting plate 9 is preferably an arc-shaped plate structure so that the mounting plate 9 fits the cylindrical exterior of the troweling machine body 15; each mounting plate 9 is provided with two first threaded grooves 10, and correspondingly, each mounting plate 9 is provided with two threaded rods 11;

[0036] Adopting the above technical solution can facilitate the more stable fitting and fixing of the mounting plate 9 and the troweling machine body 15. Since the mounting plate 9 rotates with the surrounding rod 1 of the protective cover, the mounting plate 9 needs to avoid movement interference with the troweling machine body 15, and the arc-shaped structural design of the mounting plate 9 is conducive to its stable rotation around the cylindrical exterior of the troweling machine body 15.

[0037] As Figure 1 and Figure 2 shown, in this embodiment, the protective cover is further provided with an opening and closing structure for opening a part of the protective cover; specifically, the opening and closing structure includes: a fixing plate 3 provided between the surrounding rod 1 and the auxiliary baffle 2, and a through groove 4 is formed on the surface of the fixing plate 3; a plugging member for plugging the through groove 4;

[0038] Adopting the above technical solution can maintain the trowel without rotating the protective cover. When the fault is small and easy to handle, there is no need to unlock the locking structure. Only when the trowel needs to be completely disassembled, the protective cover needs to be rotated. When in use, open the plugging member, and the trowel can be maintained through the through groove 4 on the surface of the fixing plate 3, which is relatively convenient.

[0039] As Figure 2 shown, in this embodiment, the plugging member is a door panel 5 rotatably connected to the fixing plate 3. One end of the door panel 5 is connected with a rotating shaft 6, and the rotating shaft 6 is rotatably connected to a hinge seat 7 arranged outside the fixing plate 3; optionally, a locking member is arranged between the door panel 5 and the fixing plate 3, and the locking member can be a spring lock;

[0040] Adopting the above technical solution can facilitate the opening and closing of the through groove 4 on the surface of the fixing plate 3. When the through groove 4 needs to be opened, only need to unlock the locking member between the door panel 5 and the fixing plate 3, then the rotational restriction on the door panel 5 can be released, and rotate the door panel 5 so that its rotating shaft 6 rotates around the hinge seat 7, thereby opening the through groove 4 on the surface of the fixing plate 3, which is convenient for maintaining the trowel inside the protective cover through the through groove 4.

[0041] Working principle: When the trowel needs to be disassembled, rotate the threaded rod 11 on the surface of the shield mounting plate 9, so that the threaded rod 11 moves away from the troweling machine body 15 until the threaded rod 11 is disengaged from the second thread groove outside the troweling machine body 15, and the rotation restriction of the shield can be released. Since a slider 13 is provided on the outer side of the surrounding rod 1 of one shield, and a sliding groove 12 is formed on the inner side of the surrounding rod 1 of the other shield, the slider 13 and the sliding groove 12 can be slidably matched, so that the two shields can slide relative to each other. Push one shield to rotate relative to the other shield until the shield is completely pushed into the other shield, and the two shields completely overlap, then the shield's shielding of the trowel can be removed, which is convenient for replacing and maintaining the trowel. After maintenance, just rotate the shield to reset it, and then connect the threaded rod 11 with the second thread groove outside the troweling machine body 15 to complete the maintenance. There is no need to disassemble the entire shield during maintenance;

[0042] When the fault is small and easy to handle, there is no need to release the locking structure. Only when the trowel needs to be completely disassembled, the shield needs to be rotated. During use, just unlock the locking part between the door panel 5 and the fixing plate 3 to release the rotation restriction of the door panel 5. Rotate the door panel 5 so that its rotating shaft 6 rotates around the hinge seat 7, thereby opening the through groove 4 on the surface of the fixing plate 3, which is convenient for maintaining the trowel inside the shield through the through groove 4.

[0043] Those of ordinary skill in the art should understand that: The discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0044] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An operation protection component for a concrete troweling machine, characterized in that, It includes a protection component installed outside the troweling machine body (15) to isolate the trowel. The protection component includes at least two shields, one of the shields is slidably arranged inside the other shield, and the shield is provided with a locking structure for restricting its sliding. During use, the locking structure is released so that the corresponding shield can slide around the other shield, thereby exposing the trowel.

2. The concrete troweling machine operation protection component according to claim 1, characterized in that, Each shield includes a number of spaced-apart enclosing rods (1) and auxiliary baffles (2) for connecting adjacent enclosing rods (1). A chute (12) is formed inside the enclosing rods (1) of one of the shields, and a slider (13) matching the chute (12) is arranged outside the enclosing rods (1) of the other shield.

3. The concrete troweling machine operation protection assembly according to claim 2, characterized in that, The locking structure includes: A mounting bracket (8) with one end arranged at the upper end of the enclosing rod (1); A mounting plate (9) connected to the other end of the mounting bracket (8), and the mounting plate (9) is provided with a first threaded groove (10); A threaded rod (11) with one end threadedly connected to the first threaded groove (10), and the other end of the threaded rod (11) is threadedly connected to a second threaded groove formed outside the troweling machine body (15).

4. The concrete troweling machine operation protection component according to claim 3, characterized in that, The mounting plate (9) is in an arc plate structure so that the mounting plate (9) fits the cylindrical exterior of the troweling machine body (15).

5. The concrete troweling machine operation protection component according to claim 4, wherein, Each mounting plate (9) is provided with at least two first threaded grooves (10), and correspondingly, each mounting plate (9) is provided with at least two threaded rods (11).

6. The concrete troweling machine operation protection assembly according to claim 3, wherein, The shield is further provided with an opening and closing structure for opening a part of the shield.

7. The concrete troweling machine operation protection component according to claim 6, characterized in that, The opening and closing structure includes: A fixing plate (3) arranged between the enclosing rod (1) and the auxiliary baffle (2), and a through groove (4) is formed on the surface of the fixing plate (3); A plugging component for plugging the through groove (4).

8. The concrete troweling machine operation protection assembly according to claim 7, wherein, The plugging component is a door panel (5) rotatably connected to the fixing plate (3).

9. The concrete troweling machine operation protection component according to claim 8, characterized in that, One end of the door panel (5) is connected with a rotating shaft (6), and the rotating shaft (6) is rotatably connected to a hinge seat (7) arranged outside the fixing plate (3).

10. The concrete troweling machine operation protection component according to claim 9, characterized in that, A locking component is arranged between the door panel (5) and the fixing plate (3).

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