Convenient mounting structure applied to rear cover and grass combing machine

Abstract

The utility model belongs to the field of grass combing machine provides a kind of portable installation structure and grass combing machine applied to rear cover, including the rear cover body for being assembled on main body framework;Rear cover body is rotationally connected on main body framework, and the end of rear cover body close to main body framework is equipped with locking pin, and locking pin is equipped with elastic member;The side of main body framework close to rear cover body is equipped with first connecting seat, and the inner wall of rear cover body is equipped with second connecting seat close to the central position.Compared with prior art, the utility model has the advantages that the quick disassembly and assembly function between rear cover body and main body framework is realized by the cooperation of locking pin and elastic member;Meanwhile, the two ends of elastic member are connected to first connecting seat and second connecting seat respectively, and rely on the asymmetric stress generated in the action process of locking pin by elastic member, to further exert certain tension on the middle position of rear cover body, avoid the deformation of its own injection molding and affect the stability of overall structure.

Description

Technical Field

[0001] This utility model belongs to the field of grass combers, specifically relating to a convenient installation structure for the back cover and a grass comber. Background Technology

[0002] In landscaping, lawn combs are now widely used to remove dead grass and maintain the healthy growth of lawns.

[0003] Currently, most hay combers still use a screw-fastened rear cover structure, where the rear cover body is fixed to the main frame with multiple screws. This method has advantages such as high connection strength, good sealing, and structural stability, and is widely used in industrial scenarios with high reliability requirements. However, its drawbacks are also quite obvious: each disassembly and assembly requires the use of special tools (such as screwdrivers or wrenches), making the operation cumbersome and time-consuming; when there are many screws, it is easy to miss, misinstall, or strip the threads; frequent disassembly and reassembly over a long period of time can lead to thread wear, reducing connection reliability; in addition, because the overall structure of the side of the rear cover body connected to the main frame is relatively long, a certain bulge (i.e., arc-shaped setting) often occurs in the middle of the rear cover body due to injection molding or stress concentration, which seriously affects the installation and normal use of the rear cover body. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a convenient installation structure for the back cover and a grass comber that is simple in structure, has good stability, is easy to assemble and disassemble, and ensures that the back cover body is not easily deformed.

[0005] The purpose of this utility model can be achieved by addressing the following technical problem: proposing a convenient installation structure for a back cover, including a back cover body for mounting on the main frame;

[0006] The rear cover body is rotatably connected to the main frame, and a locking pin is installed at one end of the rear cover body near the main frame. The locking pin is provided with an elastic element.

[0007] The main frame is provided with a first connecting seat on the side near the back cover body, and a second connecting seat is provided on the inner wall of the back cover body near its center. One end of the elastic member is connected to the first connecting seat, and the other end is connected to the second connecting seat.

[0008] In the above-mentioned convenient installation structure for the back cover, the two side walls of the back cover body extend outward to form connecting posts, the main frame is provided with positioning grooves, the connecting posts are movably disposed in the positioning grooves, and are abutted by a cover plate that is detachably connected to the main frame to prevent the connecting posts from falling out of the positioning grooves.

[0009] In the aforementioned convenient installation structure applied to the back cover, the elastic element is a torsion spring structure.

[0010] In the above-mentioned convenient installation structure for the back cover, a flange is formed at one end of the back cover body near the main frame. The flange and the inner wall of the back cover body together form symmetrically arranged reinforcing plates. Each reinforcing plate has an installation hole, and the locking pin passes through the installation hole and abuts against the side wall of the reinforcing plate.

[0011] In the aforementioned convenient installation structure for the back cover, a clearance groove is also formed inside the flange, and a gap is reserved between the bottom wall of the clearance groove and the locking pin.

[0012] In the above-mentioned convenient installation structure applied to the back cover, the first connecting seat is provided with a first connecting hole, the second connecting seat is provided with a second connecting hole, one end of the elastic member passes through the first connecting hole and abuts against the outer wall of the first connecting seat, and the other end passes through the second connecting hole and abuts against the outer wall of the second connecting seat.

[0013] In the above-mentioned convenient installation structure applied to the back cover, a first arc-shaped abutting surface is formed on the flange, and an arc-shaped groove is formed inside the main frame, with the first arc-shaped abutting surface closely attached to the inner wall of the arc-shaped groove.

[0014] In the aforementioned convenient installation structure applied to the back cover, the distance between the locking pin and the first connecting seat is less than the distance between the locking pin and the second connecting seat.

[0015] In the aforementioned convenient installation structure for a back cover, a protrusion is also formed on the inner wall of the back cover body.

[0016] The technical solution adopted by this utility model to solve its technical problem is to also propose a grass comber, including one of the above-mentioned convenient installation structures applied to the back cover.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention provides a convenient installation structure for the back cover and a combing machine. Through the cooperation of the locking pin and the elastic element, the back cover body and the main frame are quickly disassembled and assembled. At the same time, the two ends of the elastic element are respectively connected to the first connecting seat and the second connecting seat. The elastic element generates asymmetrical force during the locking pin action, thereby applying a certain tension force to the middle part of the back cover body, so as to avoid the deformation of the body during injection molding from affecting the stability of the overall structure.

[0019] (2) By limiting the radial position of the connecting column by the cover plate, a stable rotational connection between the rear cover body and the main frame is achieved, which simplifies the assembly process, reduces the manufacturing cost, and effectively prevents the rear cover body from shaking or shifting, thus affecting the durability and safety of the overall structure.

[0020] (3) The reserved gap avoids jamming caused by assembly errors or thermal expansion and contraction of materials, improves the action sensitivity and reliability of the locking structure, and further ensures the smoothness and stability of the back cover body when it moves. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this application applied to a hay comber;

[0022] Figure 2 This is a schematic diagram of the installation structure between the back cover body and the main frame;

[0023] Figure 3 This is a schematic diagram of the installation structure between the back cover body, the locking pin, and the elastic element;

[0024] Figure 4 It is an exploded view of the back cover body, main frame, and cover plate.

[0025] In the figure, 1 is the main frame; 10 is the first connecting seat; 100 is the first connecting hole; 11 is the positioning groove; and 12 is the arc-shaped groove.

[0026] 2. Rear cover body; 20. Locking pin; 21. Elastic element; 22. Second connecting seat; 220. Second connecting hole; 23. Connecting post; 24. Flanged edge; 240. Circumventing groove; 241. First arc-shaped abutting surface; 25. Reinforcing plate; 250. Mounting hole; 26. Protrusion block;

[0027] 3. Cover plate. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] like Figure 1As shown, this solution mainly describes a convenient installation structure for the back cover on a grass comber. However, this convenient installation structure for the back cover is not limited to the grass comber and can also be applied to other equipment that requires back cover installation.

[0031] like Figures 1 to 4 As shown, a convenient installation structure for a back cover includes a back cover body 2 for mounting on a main frame 1; the back cover body 2 is rotatably connected to the main frame 1, and a locking pin 20 is installed at one end of the back cover body 2 near the main frame 1, with an elastic element 21 on the locking pin 20; a first connecting seat 10 is provided on one side of the main frame 1 near the back cover body 2, and a second connecting seat 22 is provided on the inner wall of the back cover body 2 near its center position, with one end of the elastic element 21 connected to the first connecting seat 10 and the other end connected to the second connecting seat 22.

[0032] like Figures 1 to 4 As shown, in this embodiment, the rear cover body 2 and the main frame 1 are installed by a rotating connection, as follows: Figure 2 As shown, during installation, the worker can snap one end of the elastic element 21 into the first connection, and as the locking pin 20 passes through the inner wall of the rear cover body 2, it simultaneously passes through the elastic element 21, so that the elastic element 21 is fixed to the rear cover body 2 along with the locking pin 20; as the rear cover body 2 moves and presses against one side end of the main frame 1 (refer to...) Figure 2 As shown in the diagram, the worker can snap the other end of the elastic element 21 into the second connecting seat 22, thereby providing support for the rear cover body 2 to rotate and connect to the main frame 1, and also completing the stable installation between the two. The entire operation is convenient, reduces the difficulty of disassembly and assembly, and improves assembly efficiency and the stability of assembly quality; Figure 2 As shown, in this embodiment, the second mounting base is located near the middle of the rear cover body 2. Compared to the position between the elastic element 21 on the locking pin 20 and the first connecting seat 10, the connection between the second connecting seat 22 and the elastic element 21 can release the force applied by the elastic element 21. That is, the force applied by the elastic element 21 mainly acts at the connection position between it and the first connecting seat 10, thereby effectively preventing the rear cover body 2 from deforming. At the same time, by utilizing the generated asymmetrical force, a certain tension force is applied to the middle position of the rear cover body 2, avoiding the deformation during injection molding from affecting the stability of the overall structure.

[0033] The two side walls of the rear cover body 2 extend outward to form connecting posts 23. The main frame 1 has a positioning groove 11. The connecting posts 23 are movably disposed in the positioning groove 11 and are pressed against by the cover plate 3 which is detachably connected to the main frame 1 to prevent the connecting posts 23 from falling out of the positioning groove 11.

[0034] like Figure 1and Figure 4 As shown, during installation, the worker aligns the back cover body 2 with the main frame 1, aligning the connecting posts 23 on both sides with the entrances of the positioning grooves 11. As the connecting posts 23 are pushed into the positioning grooves 11 until the back cover body 2 is completely fitted against the main frame 1, the connecting posts 23 are deeply embedded in the positioning grooves 11 (with a portion still outside the positioning grooves 11). As the worker installs the cover plate 3 onto the main frame 1, pressing its inner side against the outer end of the connecting posts 23 and securing it with screws, bolts, or other fastening structures, the connecting shaft can be effectively disengaged from the positioning grooves 11 along its radial direction, achieving a stable rotational connection between the back cover and the main frame 1. This structure eliminates the need for additional bearings or complex hinges, simplifying the assembly process and reducing manufacturing costs. Simultaneously, the cooperation between the connecting posts 23 and the positioning grooves 11 ensures the stability of the back cover during opening and closing, preventing shaking or displacement, and improving the overall durability and safety of the structure.

[0035] like Figure 2 As shown, the elastic element 21 in this embodiment preferably adopts a torsion spring structure. The torsion spring has the advantages of compact structure, stable rebound force and long service life. At the same time, the torsion spring can be arranged around the axis of the locking pin 20, making full use of the internal space of the back cover body 2 without occupying additional installation area. Meanwhile, its torsional characteristics can provide a continuous and uniform locking force, ensuring that the back cover body 2 can be released smoothly, enhancing the reliability of the structure and the user experience.

[0036] The distance between the locking pin 20 and the first connecting seat 10 is less than the distance between the locking pin 20 and the second connecting seat 22.

[0037] like Figure 2 and Figure 3 As shown, by reasonably setting the distance relationship between the locking pin 20 and the two connecting seats, the elastic element 21 generates asymmetrical force during the movement of the rear cover body 2 after the locking pin 20, thus optimizing the direction and magnitude of the elastic force. That is, the shorter first connection distance helps to improve the sensitivity of the elastic response, and the force is applied to the main frame 1. The longer second connection distance can disperse the force on the rear cover body 2 to a position away from the locking pin 20 (i.e., away from the end wall at the connection between the rear cover body 2 and the main frame 1), effectively preventing the deformation of the middle position at the connection between the rear cover body 2 and the main frame 1 due to the torsion of the elastic element 21, and improving the stability of the overall structure.

[0038] The rear cover body 2 has a flange 24 at one end near the main frame 1. The flange 24 and the inner wall of the rear cover body 2 together form symmetrically arranged reinforcing plates 25. Each reinforcing plate 25 has a mounting hole 250. The locking pin 20 passes through the mounting hole 250 and abuts against the side wall of the reinforcing plate 25.

[0039] like Figure 2 and Figure 3 As shown, the symmetrical reinforcing plate 25 formed by the flange 24 and the inner wall significantly improves the structural strength of the back cover body 2 in the locking area, avoiding deformation or breakage caused by frequent opening and closing (rotation) or external force. In addition, the mounting hole 250 is provided on the reinforcing plate 25, providing a stable mounting base for the locking pin 20, which not only improves the mechanical strength of the back cover body 2, but also ensures the reliability of the locking pin 20 under long-term use and extends the service life of the product.

[0040] Preferably, a clearance groove 240 is also formed within the flange 24, with a gap reserved between the bottom wall of the clearance groove 240 and the locking pin 20. This clearance groove 240 design provides sufficient space for the installation of the locking pin 20 and the elastic element 21, preventing interference with the flange 24 during operation and thus affecting normal use. Therefore, the reserved gap between them avoids jamming caused by assembly errors or thermal expansion and contraction of materials, improving the reliability of the structure and further ensuring the smoothness and stability of the rear cover body 2 during operation.

[0041] The first connecting seat 10 is provided with a first connecting hole 100, and the second connecting seat 22 is provided with a second connecting hole 220. One end of the elastic member 21 passes through the first connecting hole 100 and abuts against the outer wall of the first connecting seat 10, and the other end passes through the second connecting hole 220 and abuts against the outer wall of the second connecting seat 22.

[0042] like Figure 2 and Figure 3 As shown, this embodiment achieves quick and reliable fixing of the elastic element 21 by opening connecting holes on both the first and second connecting seats 22 and inserting both ends of the elastic element 21 through and pressing it against the outer wall of the connecting seat. This connection method eliminates the need for welding or bonding, facilitates assembly and replacement, and effectively prevents the elastic element 21 from falling off or loosening during use. Both ends are pressed together (both ends of the elastic element 21 are L-shaped, see reference). Figure 3 The design of the structure shown ensures effective transmission of elastic force, improves the response speed and stability of the movement, and enhances the overall durability of the structure.

[0043] A first arc-shaped abutting surface 241 is formed on the flange 24, and an arc-shaped groove 12 is formed inside the main frame 1. The first arc-shaped abutting surface 241 is in close contact with the inner wall of the arc-shaped groove 12.

[0044] like Figure 1 and Figure 4As shown, during the installation of the back cover body 2, the first arc-shaped abutting surface 241 cooperates with the arc-shaped groove 12 on the main frame 1 to form a surface contact limiting structure. This structure not only improves the sealing and stability between the back cover body 2 and the main frame 1, but also compensates for assembly errors to a certain extent, ensuring the correct positioning of the back cover body 2 and improving the overall assembly accuracy and appearance quality.

[0045] like Figure 3 As shown, in this embodiment, a protrusion 26 is also formed on the inner wall of the back cover body 2. The protrusion 26 can be made into a shape that matches the actual needs. At the same time, the protrusion 26 can also be used as a reinforcing rib to improve the local strength of the back cover body 2 and enhance the overall structural rigidity. In addition, when other components are installed on the back cover body 2, the protrusion 26 can reduce the contact area between the other components and the back cover body 2, preventing them from damaging the structure and quality of the back cover body 2, and playing a certain role in avoidance and protection.

[0046] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A convenient mounting structure for a back cover, comprising a back cover body for mounting on a main frame, characterized in that: The rear cover body is rotatably connected to the main frame, and a locking pin is installed at one end of the rear cover body near the main frame. The locking pin is provided with an elastic element. The main frame is provided with a first connecting seat on the side near the back cover body, and a second connecting seat is provided on the inner wall of the back cover body near its center. One end of the elastic member is connected to the first connecting seat, and the other end is connected to the second connecting seat.

2. The convenient installation structure for a back cover according to claim 1, characterized in that, The two side walls of the rear cover body extend outward to form connecting posts. The main frame has a positioning groove. The connecting posts are movably disposed in the positioning groove and are abutted by a cover plate that is detachably connected to the main frame to prevent the connecting posts from falling out of the positioning groove.

3. The convenient installation structure for a back cover according to claim 1, characterized in that, The elastic element is a torsion spring structure.

4. The convenient installation structure for a back cover according to claim 2, characterized in that, The rear cover body has a flange at one end near the main frame. The flange and the inner wall of the rear cover body together form symmetrically arranged reinforcing plates. Each reinforcing plate has a mounting hole. The locking pin passes through the mounting hole and abuts against the side wall of the reinforcing plate.

5. A convenient installation structure for a back cover according to claim 4, characterized in that, An avoidance groove is also formed inside the flange, and a gap is reserved between the bottom wall of the avoidance groove and the locking pin.

6. The convenient installation structure for a back cover according to claim 1, characterized in that, The first connecting seat is provided with a first connecting hole, and the second connecting seat is provided with a second connecting hole. One end of the elastic member passes through the first connecting hole and abuts against the outer wall of the first connecting seat, and the other end passes through the second connecting hole and abuts against the outer wall of the second connecting seat.

7. A convenient installation structure for a back cover according to claim 5, characterized in that, A first arc-shaped abutting surface is formed on the flange, and an arc-shaped groove is formed inside the main frame, with the first arc-shaped abutting surface closely attached to the inner wall of the arc-shaped groove.

8. The convenient installation structure for a back cover according to claim 1, characterized in that, The distance between the locking pin and the first connecting seat is less than the distance between the locking pin and the second connecting seat.

9. A convenient installation structure for a back cover according to claim 1, characterized in that, The inner wall of the rear cover body also has protrusions.

10. A hay comber, characterized in that, Includes a convenient mounting structure for a back cover as described in any one of claims 1-9.

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