Protective structure of hand-cranking surface grinding machine

Abstract

The utility model discloses a protective structure of a hand-cranking surface grinding machine, which comprises a protective assembly, a protective plate, a fixing rod and a driving assembly, and is characterized in that the protective assembly comprises a protective plate and a fixing rod; the auxiliary connecting assembly comprises a connecting rod, a fixing frame, a clamping groove, a sliding block and a butt joint rod; the connecting rod is fixed to the top end of the protection plate, the fixing frame is fixed to the top face of the opposite end of the fixing rod, the clamping groove is formed in one side of the transverse surface of the fixing frame, the sliding block is slidably connected to the inner side of the clamping groove, the butt-joint rod penetrates through the connecting rod and the sliding block, and one end of the butt-joint rod penetrates and extends to the outer side of the fixing frame. Through the arrangement of the auxiliary connecting assembly, when the protective plate is clamped with the guide seat through the guide rod, the protective plate drives the connecting rod to be tightly attached to the sliding block at the same time, and then the butt joint rod is inserted into the connecting position of the sliding block and the connecting rod from the back face of the fixing frame in a threaded mode, so that the connecting rod and the sliding block are stably connected together; therefore, the protection plate is stably connected with the fixing rod and the guide seat, and the protection plate is prevented from being separated from the guide seat under the influence of external force.

Description

Technical Field

[0001] This utility model relates to the field of hand-cranked surface grinder technology, and in particular to a protective structure for a hand-cranked surface grinder. Background Technology

[0002] A hand-cranked surface grinder is a machine tool used to grind flat or shaped surfaces of workpieces. It has the advantages of simple structure, convenient operation, and high machining accuracy.

[0003] A search revealed Chinese Patent Publication No. CN221248041U, which discloses a protective structure for a hand-cranked surface grinder. The structure includes a base, a fixed seat fixed to the top of the base, and a mounting seat slidably disposed on the top of the base, located on the front of the fixed seat. A grinding disc is positioned on the front of the fixed seat above the mounting seat. The structure also includes a protective plate, rotatably connected to the mounting seat via two connecting structures; and a stabilizing structure disposed between the fixed seat and the protective plate, with the protective plate detachably slidably connected to the fixed seat. This protective structure for a hand-cranked surface grinder not only protects the user and enhances safety, but also facilitates easy disassembly and assembly, making operation simple and convenient.

[0004] In the existing patent literature, the protective plate is engaged with the ball bearing inside the guide seat via a guide rod, thus connecting the protective plate to the fixed seat. The bottom end of the protective plate is connected to the mounting seat via a hinge. When the protective plate moves with the mounting seat, the guide rod moves between the inner sides of the ball bearing. However, since the surface of the guide rod is arc-shaped, when the protective plate is subjected to an outward pushing force, the guide rod will separate from the inside of the guide seat, causing the protective plate to fail to protect the device. Therefore, it is necessary to propose an auxiliary connection protective structure to ensure a stable connection between the protective plate, the guide seat, and the fixed rod. Utility Model Content

[0005] The purpose of this utility model is to provide a protective structure for a hand-cranked surface grinder, in order to solve the problem mentioned in the above-mentioned patent documents in the background art, where the protective plate is engaged with the ball bearing inside the guide seat by a guide rod, so that the protective plate is connected to the fixed seat, and the bottom end of the protective plate is connected to the mounting seat by a hinge. When the protective plate moves with the mounting seat, the guide rod moves between the inner sides of the ball bearing. However, since the surface of the guide rod is arc-shaped, when the protective plate is subjected to an outward pushing force, the guide rod will separate from the inside of the guide seat, causing the protective plate to fail to protect the device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a protective structure for a hand-cranked surface grinder, comprising:

[0008] The protective assembly includes a protective plate and a fixing rod; the fixing rod is located above one side of the protective plate.

[0009] An auxiliary connection assembly includes a connecting rod, a fixing frame, a slot, a slider, and a docking rod. The connecting rod is fixed to the top of the protective plate, the fixing frame is fixed to the top surface of the opposite end of the fixing rod, the slot is opened on one side of the transverse surface of the fixing frame, the slider is slidably connected to the inside of the slot, and the docking rod passes through the connecting rod and the slider, with one end extending through to the outside of the fixing frame.

[0010] Furthermore, the fixing frame has a connecting hole at the penetration point of the docking rod, the docking rod is slidably connected to the connecting hole, and a limit ring is threadedly connected to the outer end of the docking rod.

[0011] Furthermore, the connecting rod has a circular groove at its penetration point with the docking rod, the slider has a circular hole at its penetration point with the docking rod, and the inner end of the docking rod is threadedly connected to the circular groove.

[0012] Furthermore, the protective assembly also includes a base, a connecting seat, a mounting seat, and a guide seat; the connecting seat is fixed to the top of the base, the mounting seat is slidably connected to the center of the top of the connecting seat, the guide seat is fixed to the opposite end of the fixing rod, and the protective plate is engaged with the ball bearing inside the guide seat via the guide rod on one side above.

[0013] Furthermore, it also includes protective components;

[0014] The protective assembly includes a docking groove, a plug-in rod, and a baffle. The docking groove is located at the inner corner and the lower middle of the protective plate. The plug-in rod is inserted into the docking groove, and the baffle is fixed to the outer end of the plug-in rod.

[0015] Furthermore, a groove is provided on one side of the baffle, and the outer side of the baffle is coated with paint.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] I. This utility model, by setting an auxiliary connecting component, when the protective plate is engaged with the guide seat through the guide rod, the protective plate simultaneously drives the connecting rod to be tightly attached to the slider. Then, the connecting rod is threaded into the connection between the slider and the connecting rod from the back of the fixing frame, so that the connecting rod and the slider are firmly connected together, thereby stabilizing the connection between the protective plate and the fixing rod and the guide seat, preventing the protective plate from being separated from the guide seat due to external forces. At the same time, when the mounting seat moves the protective plate, the connecting rod moves together through the slider.

[0018] Second, based on the first beneficial effect, by setting up a protective component, the plug rod is inserted into the docking groove, so that the baffle and the inner side of the protective plate are firmly connected together. When the device is in use, the dust will rush to the inner side of the baffle. Since the outer side of the baffle is coated with paint, the dust will slide down along the paint surface, thereby preventing the dust from remaining on the inner side of the baffle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the inner structure of the protective plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the auxiliary connection component structure of this utility model;

[0023] Figure 4 This is an exploded structural diagram of the auxiliary connection component of this utility model;

[0024] Figure 5 This is a schematic diagram of the protective component structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 11. Base; 12. Connecting seat; 13. Mounting seat; 14. Protective plate; 15. Fixing rod; 16. Guide seat; 21. Connecting rod; 22. Fixing bracket; 23. Slot; 24. Slider; 25. Connecting hole; 26. Connecting rod; 27. Limiting ring; 28. Circular hole; 29. ​​Circular groove; 31. Connecting groove; 32. Insertion rod; 33. Baffle; 34. Paint finish; 35. Groove. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figures 1-4 As shown, this embodiment is a protective structure for a hand-cranked surface grinder, comprising:

[0031] The protective assembly includes a protective plate 14 and a fixing rod 15; the fixing rod 15 is located above one side of the protective plate 14.

[0032] The protective assembly also includes a base 11, a connecting seat 12, a mounting seat 13, and a guide seat 16; the connecting seat 12 is fixed to the top of the base 11, the mounting seat 13 is slidably connected to the center of the top of the connecting seat 12, the guide seat 16 is fixed to the opposite end of the fixing rod 15, and the protective plate 14 is engaged with the ball bearing inside the guide seat 16 through the guide rod on one side above.

[0033] The base 11 is used to connect to the connecting seat 12, the connecting seat 12 is used to connect to and move the mounting seat 13, the mounting seat 13 is used for grinding, the protective plate 14 is used for protection, the fixing rod 15 is used to connect to the guide seat 16, the fixing rod 15 is used to connect to the guide seat 16, and the guide seat 16 is used to connect to the protective plate 14.

[0034] The auxiliary connection assembly includes a connecting rod 21, a fixing frame 22, a slot 23, a slider 24, and a docking rod 26. The connecting rod 21 is fixed to the top of the protective plate 14, the fixing frame 22 is fixed to the top surface of the opposite end of the fixing rod 15, the slot 23 is opened on one side of the transverse surface of the fixing frame 22, the slider 24 is slidably connected to the inside of the slot 23, and the docking rod 26 passes through the connecting rod 21 and the slider 24, with one end extending through to the outside of the fixing frame 22.

[0035] The connecting rod 21 is used to connect the protective plate 14 and the fixed frame 22. The fixed frame 22 is used to open the slot 23. The slot 23 is used to connect and move the slider 24. The slider 24 is used to connect above the connecting rod 21. The docking rod 26 is used to connect and limit the connecting rod 21 and the slider 24.

[0036] The fixing bracket 22 has a connecting hole 25 at the through point of the connecting rod 26. The connecting rod 26 is slidably connected to the connecting hole 25, and the outer end of the connecting rod 26 is threadedly connected to a limit ring 27.

[0037] The connecting rod 21 has a circular groove 29 at the point where it passes through the docking rod 26, and the slider 24 has a circular hole 28 at the point where it passes through the docking rod 26. The inner end of the docking rod 26 is threadedly connected to the circular groove 29.

[0038] The connecting hole 25 is used for connecting and moving the docking rod 26. The limiting ring 27 limits the docking rod 26 to prevent it from separating from the connecting hole 25. The circular groove 29 and the circular hole 28 are used together for inserting the docking rod 26. When the slider 24 moves, the slider 24 drives the docking rod 26 to move within the connecting hole 25. At the same time, the limiting ring 27 moves to the outside to prevent the connecting rod 21 from separating from the slider 24 when it moves.

[0039] Working principle: When the component is not in use, the protective plate 14 is connected to the guide seat 16. When the component is in use, push the protective plate 14 by hand. The protective plate 14 is engaged with the guide seat 16 through the guide rod. At this time, the protective plate 14 drives the connecting rod 21 to be in close contact with the slider 24, so that the circular groove 29 is aligned with the circular hole 28. Then, hold the docking rod 26 and insert the docking rod 26 into the inner side of the circular groove 29 and the circular hole 28 through the connecting hole 25 on the back of the fixing frame 22. Then rotate the docking rod 26 so that the docking rod 26 is firmly connected to the circular groove 29 through the thread. Then, the limiting ring 27 and the... The outer ends of the docking rod 26 are connected together by a threaded rotation, so that the connecting rod 21 and the slider 24 are firmly connected together, thereby stabilizing the connection between the protective plate 14, the fixed rod 15, and the guide seat 16. When the mounting seat 13 moves the protective plate 14, the force of movement pushes the slider 24 to move in the slot 23 through the connecting rod 21, so that the connecting rod 21 moves with the protective plate 14 through the slider 24. At the same time, the slider 24 drives the docking rod 26 to move in the connecting hole 25. At this time, the limiting ring 27 moves on the outside, thereby preventing the connecting rod 21 from separating from the slider 24 when it moves.

[0040] The above steps prevent the protective plate 14 from separating from the guide seat 16 due to external forces.

[0041] Please see Figures 1-2 , Figure 5 As shown, this embodiment, based on the above embodiment, further includes:

[0042] Protection components;

[0043] The protective components include a docking groove 31, a plug rod 32, and a baffle 33; the docking groove 31 is opened at the inner corner and the lower middle of the protective plate 14, the plug rod 32 is inserted into the docking groove 31, and the baffle 33 is fixed to the outer end of the plug rod 32.

[0044] A groove 35 is provided on one side of the baffle 33, and the outer side of the baffle 33 is coated with paint 34.

[0045] The mating groove 31 is used for the insertion of the plug rod 32, the plug rod 32 is used for the connection between the baffle 33 and the protective plate 14, the baffle 33 covers the inner side of the protective plate 14, the groove 35 is used for the connection of the guide seat 16, which facilitates the disassembly of the baffle 33, and the paint surface 34 is used for dust to fall off.

[0046] Working principle: When the component is not in use, the plug rod 32 is not inserted into the docking groove 31. When the component is in use, hold the baffle 33 by hand and insert the plug rod 32 into the docking groove 31, so that the baffle 33 is firmly connected to the inner side of the protective plate 14. When the device is in use, dust will fly towards the inner side of the baffle 33. Since the outer side of the baffle 33 is coated with paint 34, the dust will slide down along the paint 34, thereby preventing dust from remaining on the inner side of the baffle 33. When the component is disassembled, pull the baffle 33 by hand to separate the plug rod 32 from the docking groove 31, and then push the baffle 33 to one side, so that the baffle 33 is separated from the guide seat 16 through the groove 35, thereby facilitating the replacement of the baffle 33.

[0047] The above steps can improve its functionality.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hand-operated surface grinder guard structure, characterized by, Include: The protection assembly includes a protection plate (14) and a fixed rod (15); the fixed rod (15) is located on one side of the protection plate (14) above; The auxiliary connecting assembly includes a connecting rod (21), a fixed frame (22), a clamping groove (23), a sliding block (24) and a butt joint rod (26); the connecting rod (21) is fixed to the top end of the protection plate (14), the fixed frame (22) is fixed to the top surface of the opposite end of the fixed rod (15), the clamping groove (23) is opened on one side of the horizontal surface of the fixed frame (22), the sliding block (24) is slidingly connected to the inside of the clamping groove (23), and the butt joint rod (26) penetrates the connecting rod (21) and the sliding block (24), and one end penetrates and extends to the outside of the fixed frame (22).

2. A hand-operated surface grinder guard according to claim 1, wherein The fixed frame (22) is provided with a connecting hole (25) at the penetration of the butt joint rod (26), the butt joint rod (26) is slidingly connected with the connecting hole (25), and the outside end of the butt joint rod (26) is threadedly connected with a limiting ring (27).

3. A hand planer guard according to claim 1, wherein The connecting rod (21) is provided with a circular groove (29) at the penetration of the butt joint rod (26), the sliding block (24) is provided with a circular hole (28) at the penetration of the butt joint rod (26), and the inside end of the butt joint rod (26) is threadedly connected with the circular groove (29).

4. The hand planer guard structure according to claim 1, wherein The protection assembly further includes a base (11), a connecting seat (12), a mounting seat (13) and a guide seat (16); the connecting seat (12) is fixed to the top end of the base (11), the mounting seat (13) is slidingly connected to the top end of the connecting seat (12), the guide seat (16) is fixed to the opposite end of the fixed rod (15), and the protection plate (14) is clamped with the inside of the guide seat (16) through the guide rod on one side above and the rolling ball.

5. The hand planer guard structure according to claim 1, wherein Also include protection assembly; The protection assembly includes a butt joint groove (31), a plug-in rod (32) and a baffle (33); the butt joint groove (31) is opened at the inside corner of the protection plate (14) and the middle below, the plug-in rod (32) is inserted into the inside of the butt joint groove (31), and the baffle (33) is fixed to the outside end of the plug-in rod (32).

6. A hand planer guard according to claim 5, wherein, One side of the baffle (33) is provided with a groove (35), and the outside surface of the baffle (33) is coated with a paint surface (34).

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