Anti-falling structure of plane air bearing

Abstract

The utility model discloses a plane air bearing anti-drop structure which comprises a plane air bearing, a bearing ejector rod, a spherical surface connector and an anti-drop cap, two springs are fixedly connected in the plane air bearing, one end of each spring is fixedly connected with a positioning rod, and the other end of each spring is fixedly connected with a connecting rod. The ends, away from the springs, of the two positioning rods are slidably connected with the interior of the anti-falling cap, the inner walls of the two positioning rods are slidably connected with sliding rods, the two sliding rods are slidably connected with the interior of the plane air bearing, the upper surfaces of the two sliding rods are fixedly connected with fixing rods, and the upper ends of the two fixing rods extend to the exterior of the plane air bearing. The inner wall of the plane air bearing is fixedly connected with two limiting rods, the upper surfaces of the two limiting rods are rotationally connected with rotating rods, the plane air bearing can be effectively prevented from falling off, the structure is simple and stable, operation is convenient and fast, the situation that a sliding rod slides, and consequently the plane air bearing falls off indirectly can be effectively prevented, and the service life of the plane air bearing is prolonged. The device stability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plane air bearing structures, in particular to a plane air bearing anti-falling structure. Background Art

[0002] Planar air bearings usually use a surrounding guide surface to achieve the rigidity required by the motion axis. After installation, planar air bearings are prone to falling off due to their own gravity, which makes them inconvenient to use and install. Therefore, an anti-falling structure is required to prevent the planar air bearings from falling off due to their own gravity.

[0003] An existing anti-falling structure for a planar air bearing utilizes the elasticity of an anti-falling cap to engage with the planar air bearing. The installation stability of the planar air bearing is affected by the elasticity of the anti-falling cap and the deadweight of the planar air bearing. If the elasticity of the anti-falling cap is too small or too large, the planar air bearing may fall off easily or be difficult to install, resulting in unstable structural performance. The device of the utility model can firmly install the planar air bearing, with stable installation and high installation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a planar air bearing anti-falling structure, which solves the problem that the anti-falling cap uses its own elasticity to clamp the planar air bearing, the installation stability of the planar air bearing is affected by the elasticity of the anti-falling cap and the deadweight of the planar air bearing, and the anti-falling cap is too small or too large in elasticity, which easily causes the planar air bearing to fall off easily or be difficult to install, resulting in unstable structural performance.

[0005] To achieve the above-mentioned purpose, a planar air bearing anti-falling structure is provided, comprising: a planar air bearing, a bearing push rod, a spherical connector and an anti-falling cap, wherein two springs are fixedly connected to the inside of the planar air bearing, one end of each of the two springs is fixedly connected to a positioning rod, one end of each of the two positioning rods away from the springs is slidably connected to the inside of the anti-falling cap, the inner walls of the two positioning rods are slidably connected to a sliding rod, the two sliding rods are slidably connected to the inside of the planar air bearing, the upper surfaces of the two sliding rods are fixedly connected to a fixing rod, and the upper ends of the two fixing rods extend to the outside of the planar air bearing, which can effectively prevent the planar air bearing from falling off, has a simple and relatively stable structure, and is easy to operate;

[0006] The inner wall of the planar air bearing is fixedly connected to the two limit rods, and the upper surfaces of the two limit rods are rotatably connected to the rotating rods. The lower ends of the two rotating rods extend into the interior of the limit rods, and the lower ends are fixedly connected to the gears. The inner walls of the two limit rods are slidably connected to the sliding plates, and the side surfaces of the two sliding plates are respectively meshed with the side surfaces of the two gears. The upper and lower surfaces of the two sliding plates are provided with limit slots, and the interiors of multiple limit slots are slidably connected to the card blocks, and the ends of multiple card blocks away from the sliding plates extend to the outside of the limit rod, and the ends of multiple card blocks extending to the outside of the limit rod are slidably connected to the inner wall of the sliding rod, which can effectively prevent the sliding rod from sliding, indirectly causing the planar air bearing to fall off, and effectively increase the stability of the device.

[0007] According to the anti-falling structure of a planar air bearing, the upper surfaces of the two positioning rods are provided with inclined grooves, and the side surfaces of the two sliding rods are provided with inclined surfaces matching the inclined grooves. The inclined grooves of the positioning rods and the inclined surfaces of the sliding rods cooperate with each other, so that the positioning rods can be moved when the sliding rods are slid, thereby facilitating the installation and disassembly of the planar air bearing.

[0008] According to the planar air bearing anti-drop structure, the ends of the two positioning rods away from the spring are both provided with arc surfaces, and the curvature of the side of the anti-drop cap matches the curvature of the positioning rod, thereby improving the stability of the device.

[0009] According to the anti-fall-off structure of a planar air bearing, the lower surface of the bearing push rod is fixedly connected to the upper surface of the spherical connector, a limiting ring is provided on the outer surface of the bearing push rod, and the inside of the anti-fall-off cap is fixedly connected to the side surface of the spherical connector, which facilitates the installation of the planar air bearing.

[0010] According to the planar air bearing anti-falling structure, one end of the two rotating rods extending to the outside of the limit rod is fixedly connected to the rotating cap, and the side surfaces of the rotating cap are provided with anti-slip grooves to increase the friction when the staff rotates, thereby increasing convenience.

[0011] According to the anti-falling structure of a planar air bearing, the outer diameter of the anti-falling cap matches the diameter of the mounting groove, and both the upper and lower surfaces of the sliding plate are provided with inclined surfaces. The extension and retraction of the card block can be controlled through the mounting groove, which is convenient for limiting the sliding rod.

[0012] According to the planar air bearing anti-falling structure, the limiting sliding groove is provided with a slope, which is the same as the slope of the inclined surface of the sliding plate, so as to facilitate the limiting of the sliding rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The sliding rod is driven by the fixed rod to move in the sliding groove inside the positioning rod. The positioning rod is moved by the cooperation between the inclined surface of the positioning rod and the inclined surface of the sliding rod, so that the positioning rod is retracted to prevent obstruction of the installation of the anti-drop cap. Then the anti-drop cap is placed inside the mounting groove on the plane air bearing, the sliding rod is reset, and then the positioning rod is pushed by the elasticity of the spring itself to clamp the anti-drop cap and limit the anti-drop cap. The structure is simple, the installation is stable and convenient, and it can effectively prevent the plane air bearing from falling off.

[0015] 2. The gear is driven to rotate by the rotating rod, and the side of the gear is engaged with the side of the sliding plate, thereby driving the sliding plate to move. The limiting slide groove on the sliding rod is used to push the card block to move along the slope of the limiting slide groove, thereby controlling the card block to extend or retract, thereby limiting the sliding rod, which can effectively prevent the sliding rod from being affected by external forces and causing the plane bearing to fall off, effectively increasing the stability of the device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional diagram of a planar air bearing anti-falling structure of the utility model;

[0019] Figure 2 This is a front cross-sectional view of a planar air bearing anti-falling structure of the utility model;

[0020] Figure 3 This is a diagram showing the internal structure of a limit rod of a planar air bearing anti-falling structure of the utility model;

[0021] Figure 4 This utility model is a planar air bearing anti-falling structure Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This is a top sectional view of a planar air bearing anti-falling structure of the utility model.

[0023] In the figure: 1. Plane air bearing; 2. Anti-drop cap; 3. Limiting ring; 4. Bearing push rod; 5. Positioning rod; 6. Spring; 7. Sliding rod; 8. Spherical connector; 9. Fixed rod; 10. Rotating rod; 11. Block; 12. Limiting rod; 13. Gear; 14. Sliding plate; 15. Limiting slide groove; 16. Mounting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the embodiment of the utility model provides a technical solution: a planar air bearing anti-falling structure, comprising: a planar air bearing 1, a bearing push rod 4, a spherical connector 8 and an anti-falling cap 2, two springs 6 are fixedly connected inside the planar air bearing 1, and the spring 6 elastically pushes the positioning rod 5 to limit the anti-falling cap 2, one end of the two springs 6 is fixedly connected to the positioning rod 5, and the positioning rod 5 is used to limit the anti-falling cap 2, one end of the two positioning rods 5 away from the spring 6 is slidably connected to the inside of the anti-falling cap 2, the inner walls of the two positioning rods 5 are slidably connected to the sliding rod 7, which is used to push the positioning rod 5 to release the limit, the two sliding rods 7 are slidably connected to the inside of the planar air bearing 1, the upper surfaces of the two sliding rods 7 are fixedly connected to the fixing rod 9, which is used to assist in pushing the sliding rod 7, and the upper ends of the two fixing rods 9 extend to the outside of the planar air bearing 1;

[0026] The inner wall of the planar air bearing 1 is fixedly connected to two limit rods 12, and the upper surfaces of the two limit rods 12 are rotatably connected to the rotating rod 10, which is used to drive the gear 13 to rotate. The lower ends of the two rotating rods 10 extend into the limit rod 12, and the lower ends are fixedly connected to the gear 13, which is used to drive the sliding plate 14 to move. The inner walls of the two limit rods 12 are slidably connected to the sliding plate 14, and the movement of the sliding plate 14 is limited by the limit rod 12, thereby increasing the movement stability of the sliding plate 14. The side surfaces of the two sliding plates 14 are respectively meshed with the side surfaces of the two gears 13. The upper and lower surfaces of the two sliding plates 14 are provided with limit slots 15, and the slope of the limit slots 15 is used to control the extension or retraction of the card block 11. The interiors of multiple limit slots 15 are slidably connected to the card blocks 11, and the ends of multiple card blocks 11 away from the sliding plate 14 extend to the outside of the limit rod 12, and the ends of multiple card blocks 11 extending to the outside of the limit rod 12 are slidably connected to the inner wall of the slide rod 7.

[0027] The upper surfaces of the two positioning rods 5 are provided with bevel grooves, and the sides of the two sliding rods 7 are provided with bevels matching the bevel grooves. The bevels of the sliding rods 7 can be used to move the positioning rods 5. The ends of the two positioning rods 5 away from the spring 6 are provided with arc surfaces, and the curvature of the side of the anti-slip cap 2 matches the curvature set by the positioning rod 5 to increase the stability of the device. The lower surface of the bearing push rod 4 is fixedly connected to the upper surface of the spherical connector 8, and the outer surface of the bearing push rod 4 is provided with a limiting ring 3. The inside of the anti-slip cap 2 is fixedly connected to the side surface of the spherical connector 8. The two rotating rods 10 extend to one end of the outside of the limiting rod 12 and are fixedly connected to the rotating cap, which is convenient for rotating the rotating rod 10. The sides of the rotating cap are provided with anti-slip grooves to increase friction. The outer diameter of the anti-slip cap 2 matches the diameter of the mounting groove 16. The upper and lower surfaces of the sliding plate 14 are provided with bevels, and the limiting slide groove 15 is provided with a slope, and has the same slope as the bevel of the sliding plate 14.

[0028] Working principle: When in use, first drive the sliding rod 7 to move in the sliding groove inside the positioning rod 5 through the fixing rod 9, and use the inclined surface of the positioning rod 5 to cooperate with the inclined surface of the sliding rod 7 to move the positioning rod 5, thereby compressing the spring 6, and then place the anti-drop cap 2 into the mounting groove 16 on the plane air bearing 1, reset the sliding rod 7, and then use the elasticity of the spring 6 itself to push the positioning rod 5 to clamp the anti-drop cap 2. The structure is simple, the installation is stable and relatively convenient, and it can effectively prevent the plane air bearing 1 from falling off. After the sliding rod 7 is reset, the rotating rod 10 drives the gear 13 to rotate, thereby driving the sliding plate 14 to move, and the inclined surface of the sliding plate 14 is used to push the card block 11 to extend the limit rod 12, thereby restricting the sliding rod 7, which can effectively prevent the sliding rod 7 from being affected by external forces and causing the plane bearing to fall off, effectively increasing the stability of the device.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A planar air bearing anti-falling structure, comprising: A planar air bearing (1), a bearing top rod (4), a spherical connector (8) and an anti-drop cap (2), characterized in that two springs (6) are fixedly connected inside the planar air bearing (1), one end of each of the two springs (6) is fixedly connected to a positioning rod (5), one end of each of the two positioning rods (5) away from the spring (6) is slidably connected to the inside of the anti-drop cap (2), the inner walls of each of the two positioning rods (5) are slidably connected to a sliding rod (7), each of the two sliding rods (7) is slidably connected to the inside of the planar air bearing (1), the upper surfaces of each of the two sliding rods (7) are fixedly connected to a fixing rod (9), and the upper ends of each of the two fixing rods (9) extend to the outside of the planar air bearing (1); The inner wall of the planar air bearing (1) is fixedly connected to two limit rods (12), the upper surfaces of the two limit rods (12) are rotatably connected to the rotating rod (10), the lower ends of the two rotating rods (10) extend to the inside of the limit rod (12), and the lower ends are fixedly connected to the gear (13), the inner walls of the two limit rods (12) are slidably connected to the sliding plate (14), the side surfaces of the two sliding plates (14) are respectively meshed with the side surfaces of the two gears (13), and the upper and lower surfaces of the two sliding plates (14) are provided with limit slots (15), and the interiors of the plurality of limit slots (15) are slidably connected to the card blocks (11), and the ends of the plurality of card blocks (11) away from the sliding plate (14) extend to the outside of the limit rod (12), and the ends of the plurality of card blocks (11) extending to the outside of the limit rod (12) are slidably connected to the inner wall of the slide rod (7).

2. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: The upper surfaces of the two positioning rods (5) are both provided with inclined grooves, and the side surfaces of the two sliding rods (7) are both provided with inclined surfaces matching the inclined grooves.

3. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: The ends of the two positioning rods (5) away from the spring (6) are both provided with an arc surface, and the curvature of the side surface of the anti-drop cap (2) matches the curvature of the positioning rod (5).

4. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: The lower surface of the bearing push rod (4) is fixedly connected to the upper surface of the spherical connector (8), a limiting ring (3) is provided on the outer surface of the bearing push rod (4), and the interior of the anti-drop cap (2) is fixedly connected to the side surface of the spherical connector (8).

5. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: One end of each of the two rotating rods (10) extending to the outside of the limiting rod (12) is fixedly connected to a rotating cap, and the side surfaces of the rotating cap are provided with anti-slip grooves.

6. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: The outer diameter of the anti-drop cap (2) matches the diameter of the mounting groove (16), and both the upper and lower surfaces of the sliding plate (14) are provided with inclined surfaces.

7. The anti-falling structure of a planar air bearing according to claim 1, characterized in that: The position-limiting sliding groove (15) is provided with a slope, which is the same as the slope of the inclined surface of the sliding plate (14).

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