Physical mechanics experiment air cushion guide rail

Abstract

The utility model discloses an air cushion guide rail for a physical mechanics experiment, which belongs to the technical field of experimental equipment and comprises a rail, a base and an air guide component, a slider is slidably mounted on the rail, the air guide component is arranged at one end of the rail, and a buffer component is arranged at one end of the rail far away from the air guide component. A hinged support is fixedly installed at the end, close to the buffering assembly, of the base, the track is hinged to the base through the hinged support, an adjusting assembly is arranged in the base and comprises a rotary knob, a screw, an adjusting block and an adjusting supporting rod, the rotary knob is arranged at the end away from the hinged support, and the rotary knob is fixedly connected with one end of the screw. The adjusting block is sleeved on the screw rod and is in threaded connection with the screw rod; the adjusting support rod is hinged between the adjusting block and the track; by arranging the hinged support, the adjusting assembly and the angle measuring instrument, the angle of the track can be freely adjusted according to the angle measuring instrument when different experiments are carried out, different experiments can be conveniently carried out, and limitation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental equipment, and in particular relates to an air cushion guide rail for physical mechanics experiments. Background Art

[0002] The air cushion guide is a modern mechanical experimental instrument. It uses a small air source to send compressed air into the inner cavity of the guide. The air is then ejected from the small holes on the surface of the guide, forming a very thin air cushion layer between the surface of the guide and the inner surface of the slider. The slider floats on the air cushion layer and is out of contact with the rail surface, so it can move in a straight line on the rail surface with almost no resistance, greatly reducing the error caused by friction in previous mechanical experiments.

[0003] The existing Chinese patent with the announcement number CN209496526U discloses an air cushion guide rail for physics teaching, including a support block, a plurality of pads are provided at the bottom of the support block, a track is installed on the top of the support block through a plurality of support rods, a plurality of photoelectric gates are provided on one side of the track, the bottom ends of the plurality of photoelectric gates are installed on the support block, two symmetrical rail surfaces on the track are provided with a plurality of through holes, a first mounting plate and a second mounting plate are respectively installed at the openings at both ends of the track, an air guide tube is penetrated through the side surface of the first mounting plate, a first groove and a second groove extending to the top of the second mounting plate are respectively provided on the side surface of the second mounting plate, and a plurality of grooves are provided on the inner side surface of the second groove in parallel with the first groove. The cam is provided with a third groove corresponding to the first groove, and a buffer device is matched and installed inside the second groove. A plurality of second mounting rods are penetrated through the side surface of the second mounting plate, and one end of the second mounting rod extends to the inside of the first groove and corresponds to the position of the third groove. One ends of the plurality of second mounting rods successively penetrate the side surface of the first groove and the side surface of the buffer device and extend to the inside of the third groove. A long hole is opened on the surface of the second mounting rod located inside the first groove, and a fixing rod is provided inside the long hole, and a block is sleeved on the fixing rod so that the block slides along the surface of the fixing rod, and a second spring corresponding to the position of the long hole is sleeved on the second mounting rod, and the two ends of the second spring are respectively connected to the block and the inner side surface of the first groove.

[0004] With respect to the above-mentioned related technologies, the inventors found that there are at least the following problems in the technologies: since the track is fixed on the support block, the angle of the track cannot be freely adjusted according to the experimental requirements, which has limitations when conducting different experiments. Utility Model Content

[0005] The purpose of the utility model is to provide an air cushion guide rail for physical and mechanical experiments to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a physical mechanics experiment air cushion guide rail, comprising a track, a base and an air guide component, a slider is slidably installed on the track, the air guide component is arranged at one end of the track, a buffer component is provided at the end of the track away from the air guide component, a hinge seat is fixedly installed at one end of the base close to the buffer component, the track is hinged to the base through the hinge seat, an adjustment component is arranged in the base, the adjustment component comprises a knob, a screw, an adjustment block and an adjustment support rod, the knob is arranged at the end away from the hinge seat, the screw is rotatably installed in the base, and the knob is fixedly connected to one end of the screw, the adjustment block is sleeved on the screw and threadedly connected to the screw, the adjustment support rod is hinged between the adjustment block and the track, and an angle measuring instrument is fixedly installed at the bottom of the track.

[0007] As a preferred embodiment, the air guide assembly includes a compressed air pump and an air guide pipe, and the air guide pipe is connected between the compressed air pump and the track.

[0008] As a preferred embodiment, the buffer assembly includes a buffer plate, a spring and a guide rod, the buffer plate is arranged on a track, both ends of the track are fixedly connected with fixed plates, the spring is fixedly connected between the buffer plate and the fixed plate, the guide rod is passed through the spring, one end of the guide rod is fixedly connected to the buffer plate, and the other end of the guide rod slides through the fixed plate.

[0009] As a preferred implementation, a buffer pad is fixedly connected to a side of the buffer plate away from the spring, and the buffer pad is a sponge pad.

[0010] As a preferred implementation, one end of the guide rod away from the buffer plate is threadedly sleeved with a limiting nut.

[0011] As a preferred implementation, a scale is provided on one side of the track, and two spaced-apart photoelectric gates are provided on a side of the track away from the scale.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The air cushion guide rail for physical mechanics experiments is provided with a hinge seat, an adjustment component and an angle measuring instrument. When conducting different experiments, the screw rod can be rotated by using a knob, so that the screw rod drives the adjustment block to slide along the base, and the adjustment block drives the track to rotate around the hinge seat through the adjustment support rod. The angle of the track can be freely adjusted according to the angle measuring instrument, which is convenient for conducting different experiments and reduces limitations.

[0014] The physical mechanics experiment air cushion guide rail is provided with a buffer assembly. When the slider slides to the end along the track, the slider will hit the buffer pad of the buffer plate, causing the spring to deform under force, thereby buffering and reducing the impact force of the slider, thereby preventing the slider from being damaged due to excessive force when it stops. By providing a limit nut, on the one hand, it can have a limiting effect on the guide rod, and on the other hand, after the limit nut is twisted off, the buffer assembly can be disassembled, thereby facilitating the disassembly and assembly of the buffer assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the track of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the base of the utility model.

[0019] In the figure: 1. track; 11. slider; 12. buffer assembly; 121. buffer plate; 122. spring; 123. guide rod; 124. buffer pad; 125. limit nut; 13. scale; 14. photoelectric door; 2. base; 21. hinge seat; 22. adjustment assembly; 221. knob; 222. screw; 223. adjustment block; 224. adjustment support rod; 23. angle measuring instrument; 3. air guide assembly; 31. compressed air pump; 32. air guide tube. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] See also Figure 1-4The utility model provides an air cushion guide rail for physical mechanics experiments, comprising a track 1, a base 2 and an air guide component 3. A slider 11 is slidably mounted on the track 1. The air guide component 3 is arranged at one end of the track 1. The air guide component 3 comprises a compressed air pump 31 and an air guide pipe 32. The air guide pipe 32 is connected between the compressed air pump 31 and the track 1. By setting the air guide component 3, the compressed air pump 31 can be started to transport compressed air along the air guide pipe 32 to the track 1, and the air is then ejected from the small holes on the surface of the track 1 to form a very thin air cushion layer between the surface of the track 1 and the inner surface of the slider 11, so that the slider 11 can slide along the track 1. A scale 13 is provided on one side of the track 1, and two spaced photoelectric gates 14 are provided on the side of the track 1 away from the scale 13. By setting the scale 13 and the photoelectric gate 14, the experimental data of the slider can be recorded.

[0023] Reference Figure 2 and Figure 3 A buffer assembly 12 is provided at one end of the track 1 away from the air guide assembly 3. The buffer assembly 12 includes a buffer plate 121, a spring 122 and a guide rod 123. The buffer plate 121 is provided on the track 1. Both ends of the track 1 are fixedly connected with a fixed plate. The spring 122 is fixedly connected between the buffer plate 121 and the fixed plate. The guide rod 123 is inserted into the spring 122. One end of the guide rod 123 is fixedly connected to the buffer plate 121. The other end of the guide rod 123 slides through the fixed plate. A buffer pad 124 is fixedly connected to the side of the buffer plate 121 away from the spring 122. The buffer pad 124 is a sponge pad. A buffer assembly 12 is provided. When the slider 11 slides to the end along the track 1, the slider 11 will hit the buffer pad 124 of the buffer plate 121, causing the spring 122 to deform under force, thereby buffering and reducing the impact force of the slider 11, and preventing the slider 11 from being damaged due to excessive force when it stops; a limiting nut 125 is threadedly sleeved on one end of the guide rod 123 away from the buffer plate 121. By providing the limiting nut 125, on the one hand, a limiting effect can be exerted on the guide rod 123, and on the other hand, after the limiting nut 125 is twisted off, the buffer assembly 12 can be disassembled, which is convenient for disassembly and assembly of the buffer assembly 12.

[0024] Reference Figure 1 and Figure 4The base 2 is fixedly installed with a hinge seat 21 at one end close to the buffer assembly 12, and the track 1 is hinged to the base 2 through the hinge seat 21. An adjustment assembly 22 is provided in the base 2, and the adjustment assembly 22 includes a knob 221, a screw rod 222, an adjustment block 223 and an adjustment support rod 224. The knob 221 is arranged at the end away from the hinge seat 21, and the screw rod 222 is rotatably installed in the base 2, and the knob 221 is fixedly connected to one end of the screw rod 222, the adjustment block 223 is sleeved on the screw rod 222 and is threadedly connected to the screw rod 222, and the adjustment support rod 224 is hinged at An angle measuring instrument 23 is fixedly installed at the bottom of the track 1 between the adjustment block 223 and the track 1. By setting the hinge seat 21, the adjustment component 22 and the angle measuring instrument 23, when conducting different experiments, the knob 221 can be used to rotate the screw 222, so that the screw 222 drives the adjustment block 223 to slide along the base 2, and the adjustment block 223 drives the track 1 to rotate around the hinge seat 21 through the adjustment support rod 224. The angle of the track 1 can be freely adjusted according to the angle measuring instrument 23, which is convenient for conducting different experiments and reduces limitations.

[0025] The working principle and use process of the utility model are as follows: first, by setting the hinge seat 21, the adjustment component 22 and the angle measuring instrument 23, when conducting different experiments, the knob 221 can be used to rotate the screw rod 222, so that the screw rod 222 drives the adjustment block 223 to slide along the base 2, so that the adjustment block 223 drives the track 1 to rotate around the hinge seat 21 through the adjustment support rod 224, and the angle of the track 1 can be freely adjusted according to the angle measuring instrument 23, which is convenient for conducting different experiments and reduces limitations; by setting the buffer component 12, when the slider 11 slides to the end along the track 1, the slider 11 will hit the buffer pad 124 of the buffer plate 121, so that the spring 122 is deformed by force, and the impact force of the slider 11 is buffered and reduced, so as to avoid the slider 11 being damaged by excessive force when it stops. By setting the limit nut 125, on the one hand, it can have a limiting effect on the guide rod 123, and on the other hand, after the limit nut 125 is twisted off, the buffer component 12 can be disassembled, which is convenient for disassembly and assembly of the buffer component 12.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A physical mechanics experiment air cushion guide rail, comprising a track (1), a base (2) and an air guide assembly (3), characterized in that: A slider (11) is slidably mounted on the track (1), the air guide component (3) is arranged at one end of the track (1), a buffer component (12) is arranged at the end of the track (1) away from the air guide component (3), a hinge seat (21) is fixedly mounted at the end of the base (2) close to the buffer component (12), the track (1) is hinged to the base (2) via the hinge seat (21), an adjustment component (22) is arranged inside the base (2), and the adjustment component (22) comprises a knob (221), a screw rod (222), an adjustment member (221), and a plurality of adjustment members (222). The invention relates to a base (220) and a track (1) comprising a knob (221) and an adjusting support rod (224), wherein the knob (221) is arranged at one end away from the hinge seat (21), the screw rod (222) is rotatably mounted in the base (2), and the knob (221) is fixedly connected to one end of the screw rod (222), the adjusting block (223) is sleeved on the screw rod (222) and is threadedly connected to the screw rod (222), the adjusting support rod (224) is hinged between the adjusting block (223) and the track (1), and an angle measuring instrument (23) is fixedly mounted at the bottom of the track (1).

2. The physical mechanics experiment air cushion guide according to claim 1, characterized in that: The air guide component (3) comprises a compressed air pump (31) and an air guide pipe (32), and the air guide pipe (32) is connected between the compressed air pump (31) and the track (1).

3. The physical mechanics experiment air cushion guide according to claim 1, characterized in that: The buffer assembly (12) comprises a buffer plate (121), a spring (122) and a guide rod (123); the buffer plate (121) is arranged on the track (1); both ends of the track (1) are fixedly connected to fixed plates; the spring (122) is fixedly connected between the buffer plate (121) and the fixed plate; the guide rod (123) is inserted into the spring (122); one end of the guide rod (123) is fixedly connected to the buffer plate (121); and the other end of the guide rod (123) slides through the fixed plate.

4. The physical mechanics experiment air cushion guide rail according to claim 3, characterized in that: A buffer pad (124) is fixedly connected to the side of the buffer plate (121) away from the spring (122), and the buffer pad (124) is a sponge pad.

5. The physical mechanics experiment air cushion guide rail according to claim 3, characterized in that: One end of the guide rod (123) away from the buffer plate (121) is threadedly sleeved with a limiting nut (125).

6. The physical mechanics experiment air cushion guide according to claim 1, characterized in that: A scale (13) is provided on one side of the track (1), and two photoelectric gates (14) arranged at intervals are provided on a side of the track (1) away from the scale (13).

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