Simple installation tool for satellite antenna

Abstract

The invention discloses a simple installation tool for a satellite antenna, and belongs to the technical field of satellite antenna installation tools, the simple installation tool for the satellite antenna comprises an antenna tool box, a motor is arranged on the antenna tool box, two sliding holes are formed in the surface of the antenna tool box, and the simple installation tool for the satellite antenna further comprises a sliding plate connected in the sliding holes of the antenna tool box in a sliding mode; according to the simple installation tool for the satellite antenna, four clamping plates clamp and fix the installation position of an antenna tool box by controlling a motor, so that the antenna tool box can be rapidly kept fixed, the working time of a worker in the high altitude is shortened, and the installation efficiency of the satellite antenna is improved; and in the clamping process of the clamping plates, dust, fallen leaves and the like at the installation position of the satellite antenna can be removed through jet airflow from far to near through the jet pipe, the attaching effect of the clamping plates is better, clamping is more stable, and after clamping, the motor can continue to rotate without being affected by rotation stopping of the two-way screw.

Description

Technical Field

[0001] The invention relates to the technical field of satellite antenna installation tools, and in particular to a simple installation tool for a satellite antenna. Background Art

[0002] A satellite antenna is a device used to receive or transmit satellite signals. Its main function is to capture weak signals from satellites and convert them into electrical signals that can be processed by receiving devices, or to send electrical signals generated by transmitting devices to satellites. Currently, some satellite antennas need to be installed at high places. Traditional installation methods are all done manually with the help of ladders or by climbing to high places. These are basically high-altitude operations with high risks. Moreover, most installation tools are basically placed in a backpack or box. During the installation process at high places, it is troublesome to search for tools, which increases the risk and makes it inconvenient for workers to take tools, thus reducing the efficiency of satellite antenna installation.

[0003] After searching, the Chinese patent authorization number CN218082648U discloses a base station antenna installation auxiliary tool, which includes an antenna box for loading the antenna, a clamp for fixing the antenna box is slidably provided on one side of the antenna box, and a tool box for storing installation tools is fixed on the other side of the antenna box. The above patent has the following shortcomings: when fixing the antenna box, the efficiency is low by manually rotating the bolts, and rotating the bolts at high altitudes is likely to increase the danger, and the antenna box cannot be quickly fixed, which reduces the installation efficiency of the antenna. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the antenna box cannot be quickly fixed when being fixed, resulting in low efficiency, and to propose a simple installation tool for a satellite antenna.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A simple installation tool for a satellite antenna comprises an antenna tool box, on which a motor is arranged, and on the surface of which two sliding holes are provided, and further comprises: a slide plate, which is slidably connected in the sliding hole of the antenna tool box, and the outer surface of the slide plate is threadedly connected with a bidirectional screw; a rotating rod, which is fixedly connected to the outer side of the bidirectional screw, and the outer surface of the rotating rod is sleeved with a circular cylinder, and the right side surface of the circular cylinder is fixedly connected with a driven rod, and the driven rod is fixedly connected to the output end of the motor; and a clamping plate, which is fixedly connected to the outer surface of the slide plate.

[0007] Preferably, a first L-shaped plate is fixedly connected to the right side surface of the antenna tool box, the motor is fixedly connected to the first L-shaped plate, and fixing plates are fixedly connected to both sides of the surface of the antenna tool box.

[0008] Preferably, the bidirectional screw passes through the fixed plate and is rotatably connected to the fixed plate, the bidirectional screw passes through the slide plate, the back surface of the antenna tool box is fixedly connected with a tool placement groove, the tool placement groove is arranged in grids, and a handle is fixedly connected to the antenna tool box.

[0009] Preferably, a first strip plate is hinged on the right end surface of the rotating rod, a torsion spring is fixedly connected between the first strip plate and the rotating rod, and a baffle is fixedly connected to the surface of the rotating rod.

[0010] Preferably, a second strip plate is fixedly connected to the inner wall of the circular cylinder, and the length of the second strip plate is greater than the length of the first strip plate.

[0011] Preferably, the slide plate, bidirectional screw, rotating rod, circular cylinder, driven rod, clamping plate and fixed plate are provided in two groups, and the two groups of slide plates, bidirectional screw, rotating rod, circular cylinder, driven rod, clamping plate and fixed plate are symmetrically arranged with the center line of the antenna toolbox as the axis of symmetry, and the two groups of driven rods are connected by a first synchronous belt for transmission.

[0012] Preferably, a second L-shaped plate is fixedly connected to the lower right surface of the antenna tool box, a driven rod near the lower part of the antenna tool box is rotatably connected to the second L-shaped plate, and the clamping plate can be replaced according to the shape of the clamped object.

[0013] Preferably, a third L-shaped plate is fixedly connected to the surface of the antenna tool box, and a strip rod is rotatably connected to the surface of one end of the third L-shaped plate away from the antenna tool box, a second synchronous belt is transmission-connected between the strip rod and the rotating rod, a cam passes through the surface of the strip rod, and the cam is fixedly connected to the strip rod.

[0014] Preferably, the right side surface of the third L-shaped plate is fixedly connected to a T-shaped connecting plate, the end surface of the T-shaped connecting plate away from the third L-shaped plate is fixedly connected to a piston cylinder, the internal piston of the piston cylinder is connected to a piston plate, the top surface of the piston plate is fixedly connected to a sliding rod, the sliding rod passes through the piston cylinder and is slidably connected to the piston cylinder, the top surface of the sliding rod is fixedly connected to a resistance plate, and the surface of the sliding rod is sleeved with a first spring.

[0015] Preferably, one end of the first spring is fixedly connected to the contact plate, the other end of the first spring is fixedly connected to the piston cylinder, an injection pipe passes through the surface of the clamping plate, the injection pipe is slidably connected to the clamping plate, an output hose is fixedly connected between the injection pipe and the piston cylinder, a second spring is sleeved on the surface of the injection pipe, one end of the second spring is fixedly connected to the clamping plate, the other end of the second spring is fixedly connected to the injection pipe, an intake pipe is fixedly connected to the surface of the piston cylinder, and one-way valves are fixedly installed on the intake pipe and the output hose.

[0016] Compared with the prior art, the present invention provides a simple installation tool for a satellite antenna, which has the following beneficial effects:

[0017] The satellite antenna uses a simple installation tool. By controlling the motor, the four clamping plates are clamped and fixed to the installation position of the antenna tool box, so that the antenna tool box can be quickly fixed, which helps workers reduce working time at high altitudes and speeds up the installation efficiency of the satellite antenna. In the process of clamping the clamping plates, the jet pipe can also be used to clear the dust and fallen leaves at the installation position of the satellite antenna from far to near through the jet airflow, so that the clamping plates have a better fitting effect and the clamping is more stable. Moreover, after clamping, the motor can continue to rotate and will not be affected by the cessation of rotation of the bidirectional screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front structural schematic diagram of a simple installation tool for a satellite antenna proposed by the present invention;

[0019] Figure 2 A simple installation tool for satellite antenna proposed by the present invention Figure 1 The structural diagram of part A in the figure;

[0020] Figure 3 This is a schematic diagram of the overall structure of a simple installation tool for a satellite antenna proposed by the present invention;

[0021] Figure 4 A simple installation tool for satellite antenna proposed by the present invention Figure 3 The structural diagram of part B;

[0022] Figure 5 A schematic diagram of the side structure of a simple installation tool for a satellite antenna proposed by the present invention;

[0023] Figure 6 A simple installation tool for satellite antenna proposed by the present invention Figure 5 Schematic diagram of the structure of part C;

[0024] Figure 7 A schematic diagram of the top structure of a simple installation tool for a satellite antenna proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the inside of a circular cylinder and the surface of a rotating rod in a simple installation tool for a satellite antenna proposed by the present invention;

[0026] Fig. 9 This is a schematic diagram of the top view of a simple installation tool for a satellite antenna proposed by the present invention;

[0027] Fig.10A simple installation tool for satellite antenna proposed by the present invention Fig. 9 Schematic diagram of the structure of part D.

[0028] In the figure: 1. antenna tool box; 2. motor; 3. slide plate; 4. bidirectional screw; 5. rotating rod; 6. circular cylinder; 601, driven rod; 7. clamping plate; 8. first L-shaped plate; 9. fixing plate; 10. tool placement slot; 11. handle; 12. first strip plate; 13. torsion spring; 14. baffle; 15. second strip plate; 16. first synchronous belt; 17. second L-shaped plate; 18. third L-shaped plate; 19. strip rod; 1901, cam; 20. second synchronous belt; 21. T-shaped connecting plate; 22. piston cylinder; 23. piston plate; 24. sliding rod; 25. contact plate; 26. first spring; 27. injection pipe; 28. output hose; 29. ​​second spring; 30. suction pipe; 31. one-way valve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Reference Figure 1-Figure 10A simple installation tool for a satellite antenna comprises an antenna tool box 1, on which a motor 2 is arranged, and two sliding holes are provided on the surface of the antenna tool box 1, and further comprises: a slide plate 3, which is slidably connected in the sliding hole of the antenna tool box 1, and a bidirectional screw 4 is threadedly connected to the outer surface of the slide plate 3; a rotating rod 5, which is fixedly connected to the outer side of the bidirectional screw 4, and a circular cylinder 6 is sleeved on the outer surface of the rotating rod 5, and a driven rod 601 is fixedly connected to the right side surface of the circular cylinder 6, and the driven rod 601 is fixedly connected to the output end of the motor 2; a clamping plate 7, which is fixedly connected to the outer surface of the slide plate 3. In the present invention, when installing a satellite antenna at a high place, the satellite antenna to be installed is placed inside the antenna tool box 1. After reaching the designated position, the clamping plate 7 is aligned with the place where the antenna tool box 1 needs to be installed, and the motor 2 is started to drive the driven rod 601 to rotate, and then the rotating rod 5 is driven to rotate, so that the bidirectional screw 4 rotates, and the two slides 3 are driven to move closer to the center of the antenna tool box 1, thereby driving the two clamping plates 7 to slide and clamp the installation position of the antenna tool box 1, so that the antenna tool box 1 can be fixed more quickly, thereby accelerating the installation efficiency of the satellite antenna; the sliding hole on the antenna tool box 1 can guide and limit the sliding of the slide 3, so that the slide 3 can slide on the bidirectional screw 4 more stably.

[0032] Reference Figure 1-Figure 9 In some embodiments, the right side surface of the antenna tool box 1 is fixedly connected with a first L-shaped plate 8, the motor 2 is fixedly connected to the first L-shaped plate 8, and both sides of the surface of the antenna tool box 1 are fixedly connected with fixing plates 9. In the present invention, the first L-shaped plate 8 can provide support for the motor 2.

[0033] The bidirectional screw 4 passes through the fixing plate 9 and is rotatably connected to the fixing plate 9. The bidirectional screw 4 passes through the slide plate 3. The back surface of the antenna tool box 1 is fixedly connected with a tool placement groove 10. The tool placement groove 10 is arranged in grids. A handle 11 is fixedly connected to the antenna tool box 1. In the present invention, the fixing plate 9 can support the bidirectional screw 4, so that the rotation of the bidirectional screw 4 is more stable. The tools can be placed in categories through the tool placement groove 10, which reduces the time for searching for tools, helps to reduce the danger of high-altitude operations, and improves the installation efficiency of satellite antennas.

[0034] Reference Figure 1-Figure 10 In some embodiments, the right end surface of the rotating rod 5 is hinged with a first strip plate 12, a torsion spring 13 is fixedly connected between the first strip plate 12 and the rotating rod 5, and a baffle 14 is fixedly connected to the surface of the rotating rod 5. In the present invention, through the action of the torsion spring 13 and the baffle 14, the first strip plate 12 can only rotate in one direction of the torsion spring 13 to compress the torsion spring 13, and the baffle 14 can prevent the first strip plate 12 from rotating in the opposite direction, so that when the bidirectional screw 4 needs to rotate in the opposite direction to release the fixation of the antenna tool box 1, the baffle 14 can make the first strip plate 12 rotate in the opposite direction.

[0035] The inner wall of the circular cylinder 6 is fixedly connected with a second strip plate 15, and the length of the second strip plate 15 is greater than the length of the first strip plate 12. In the present invention, when the motor 2 drives the driven rod 601 to rotate, the driven rod 601 drives the circular cylinder 6 to rotate, and the circular cylinder 6 drives the second strip plate 15 on the inner wall to rotate, and contacts the first strip plate 12 to rotate, thereby driving the rotating rod 5 to rotate, and then the bidirectional screw 4 to rotate. After the two clamping plates 7 clamp the antenna installation position, the clamping plates 7 can no longer slide, so that the bidirectional screw 4 stops rotating, so that the rotating rod 5 and the first strip plate 12 on its surface can no longer rotate. However, at this time, the motor 2 is still in the working state, so that the second strip plate 15 is driven by the circular cylinder 6 to continue to contact the first strip plate 12, so that the first strip plate 12 compresses the torsion spring 13 and rotates, so that the second strip plate 15 slides over the first strip plate 12, so that the circular cylinder 6 can continue to rotate, and at the same time, it can prevent the clamping plates 7 from being excessively clamped on the installation position, and it can also prevent the motor 2 from getting stuck.

[0036] There are two groups of slide plates 3, bidirectional screw rods 4, rotating rods 5, circular cylinders 6, driven rods 601, clamping plates 7, and fixed plates 9, and the two groups of slide plates 3, bidirectional screw rods 4, rotating rods 5, circular cylinders 6, driven rods 601, clamping plates 7, and fixed plates 9 are symmetrically arranged with the center line of the antenna tool box 1 as the symmetry axis, and the first synchronous belt 16 is connected between the two groups of driven rods 601. In the present invention, the first synchronous belt 16 can control the four clamping plates 7 to clamp the installation position of the antenna tool box 1 at the same time when the motor 2 is started, so that the antenna tool box 1 is more stable, thereby making the satellite antenna installation process more stable.

[0037] The second L-shaped plate 17 is fixedly connected to the right side surface of the lower part of the antenna tool box 1, and the driven rod 601 near the lower part of the antenna tool box 1 is rotatably connected to the second L-shaped plate 17. The clamping plate 7 can be replaced according to the shape of the clamped object. In the present invention, the second L-shaped plate 17 can support the driven rod 601 at the bottom when it rotates, so that the driven rod 601 rotates more stably. If the shape of the place where the antenna tool box 1 needs to be fixed is different, the antenna tool box 1 can be fixed to the installation places of different shapes by changing the shape of the clamping plate 7.

[0038] Reference Figure 1-Figure 10In some embodiments, the surface of the antenna tool box 1 is fixedly connected with a third L-shaped plate 18, and the surface of the third L-shaped plate 18 at one end away from the antenna tool box 1 is rotatably connected with a strip rod 19, and a second synchronous belt 20 is transmission-connected between the strip rod 19 and the rotating rod 5, and a cam 1901 is passed through the surface of the strip rod 19, and the cam 1901 is fixedly connected to the strip rod 19. In the present invention, the third L-shaped plate 18 can support the strip rod 19, and when the rotating rod 5 rotates, the second synchronous belt 20 can drive the strip rod 19 to rotate synchronously, thereby driving the cam 1901 to rotate.

[0039] The right side surface of the third L-shaped plate 18 is fixedly connected with a T-shaped connecting plate 21, and the end surface of the T-shaped connecting plate 21 away from the third L-shaped plate 18 is fixedly connected with a piston cylinder 22, and the internal piston of the piston cylinder 22 is connected with a piston plate 23, and the top surface of the piston plate 23 is fixedly connected with a sliding rod 24, which penetrates the piston cylinder 22 and is slidably connected with the piston cylinder 22, and the top surface of the sliding rod 24 is fixedly connected with a contact plate 25, and the surface of the sliding rod 24 is sleeved with a first spring 26. In the present invention, the piston cylinder 22 can be supported by the T-shaped connecting plate 21; since the sliding rod 24 can only slide up and down in the piston cylinder 22, when the cam 1901 contacts the contact plate 25, it helps the sliding rod 24 to slide up and down.

[0040] One end of the first spring 26 is fixedly connected to the contact plate 25, and the other end of the first spring 26 is fixedly connected to the piston cylinder 22. An injection pipe 27 passes through the surface of the clamping plate 7, and the injection pipe 27 is slidably connected to the clamping plate 7. An output hose 28 is fixedly connected between the injection pipe 27 and the piston cylinder 22. A second spring 29 is sleeved on the surface of the injection pipe 27, and one end of the second spring 29 is fixedly connected to the clamping plate 7, and the other end of the second spring 29 is fixedly connected to the injection pipe 27. An intake pipe 30 is fixedly connected to the surface of the piston cylinder 22, and a one-way valve 31 is fixedly installed on the intake pipe 30 and the output hose 28. In the present invention, while the strip rod 19 rotates with the rotating rod 5, in the process of clamping the installation position of the antenna tool box 1, since there may be dust on the surface of the installation position of the antenna tool box 1 and the wind speed is relatively high in the high altitude, there is a high possibility that there are some particles such as fallen leaves and dust on the surface. The strip rod 19 drives the cam 1901 to rotate during the rotation process. When the protrusion of the cam 1901 rotates to the contact plate 25, the contact plate 25 will slide downward, thereby driving the sliding rod 24 to slide downward. The sliding rod 24 pushes the piston plate 23 to perform a piston movement in the piston cylinder 22, so that the gas in the piston cylinder 22 is squeezed out through the output hose 28 and enters the inside of the injection pipe 27, and then the air flow is sprayed at the installation position of the antenna tool box 1 to blow away impurities such as dust and fallen leaves. When the sliding rod 24 slides downward, the first spring 26 is compressed. When the protrusion of the cam 1901 does not conflict with the contact plate 25, the contact plate 25 will automatically pull the sliding rod 24 under the action of the first spring 26 The movable piston plate 23 is reset upward, so that the piston plate 23 inhales air in the piston cylinder 22, and inhales the internal gas of the piston cylinder 22 through the suction pipe 30, and then sprays it out again from the injection pipe 27, and reciprocates in this way, so as to repeatedly spray and blow away dust and the like at the installation location of the antenna tool box 1, so that the clamping plate 7 clamps the installation location of the antenna tool box 1 more stably and firmly, and when removing dust and fallen leaves, the jet airflow from the injection pipe 27 from far to near can make the dust removal more thorough, making the antenna tool box 1 more stable, so that the satellite antenna installation process is more stable; the one-way valve 31 can prevent the gas from being blown out from the suction pipe 30 when blowing out, and prevent the gas from being sucked from the injection pipe 27 when inhaling; the hose setting of the output hose 28 can be unaffected in the process of the clamping plate 7 driving the injection pipe 27 to move, and when the injection pipe 27 conflicts with the clamped object, it will automatically compress the second spring 29 to slide toward the outside direction of the clamping plate 7, thereby not affecting the clamping of the clamping plate 7.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A simple installation tool for a satellite antenna, comprising an antenna tool box (1), characterized in that: The antenna tool box (1) is provided with a motor (2), the surface of the antenna tool box (1) is provided with two sliding holes, and further comprises: A slide plate (3) is slidably connected in the slide hole of the antenna tool box (1), and a bidirectional screw (4) is threadedly connected to the outer surface of the slide plate (3); A rotating rod (5) is fixedly connected to the outside of the bidirectional screw rod (4); a circular cylinder (6) is sleeved on the outer surface of the rotating rod (5); a driven rod (601) is fixedly connected to the right side surface of the circular cylinder (6); and the driven rod (601) is fixedly connected to the output end of the motor (2); A clamping plate (7) is fixedly connected to the outer surface of the slide plate (3).

2. A simple installation tool for a satellite antenna according to claim 1, characterized in that: A first L-shaped plate (8) is fixedly connected to the right side surface of the antenna tool box (1), the motor (2) is fixedly connected to the first L-shaped plate (8), and fixing plates (9) are fixedly connected to both sides of the surface of the antenna tool box (1).

3. A simple installation tool for a satellite antenna according to claim 2, characterized in that: The bidirectional screw (4) passes through the fixing plate (9) and is rotatably connected to the fixing plate (9). The bidirectional screw (4) passes through the sliding plate (3). The back surface of the antenna tool box (1) is fixedly connected with a tool placement groove (10). The tool placement groove (10) is arranged in grids. The antenna tool box (1) is fixedly connected with a handle (11).

4. A simple installation tool for a satellite antenna according to claim 1, characterized in that: A first strip plate (12) is hingedly connected to the right end surface of the rotating rod (5); a torsion spring (13) is fixedly connected between the first strip plate (12) and the rotating rod (5); and a baffle plate (14) is fixedly connected to the surface of the rotating rod (5).

5. The simple installation tool for a satellite antenna according to claim 1, characterized in that: A second strip plate (15) is fixedly connected to the inner wall of the circular cylinder (6), and the length of the second strip plate (15) is greater than the length of the first strip plate (12).

6. A simple installation tool for a satellite antenna according to claim 1, characterized in that: The slide plate (3), the bidirectional screw rod (4), the rotating rod (5), the circular cylinder (6), the driven rod (601), the clamping plate (7), and the fixed plate (9) are provided in two groups, and the two groups of slide plates (3), the bidirectional screw rod (4), the rotating rod (5), the circular cylinder (6), the driven rod (601), the clamping plate (7), and the fixed plate (9) are symmetrically arranged with the center line of the antenna tool box (1) as the symmetry axis, and the two groups of the driven rods (601) are transmission-connected with a first synchronous belt (16).

7. A simple installation tool for a satellite antenna according to claim 1, characterized in that: A second L-shaped plate (17) is fixedly connected to the right side surface of the lower part of the antenna tool box (1), a driven rod (601) close to the lower part of the antenna tool box (1) is rotatably connected to the second L-shaped plate (17), and the clamping plate (7) can be replaced according to the shape of the clamped object.

8. The simple installation tool for a satellite antenna according to claim 1, characterized in that: A third L-shaped plate (18) is fixedly connected to the surface of the antenna tool box (1); a strip rod (19) is rotatably connected to the surface of one end of the third L-shaped plate (18) away from the antenna tool box (1); a second synchronous belt (20) is transmission-connected between the strip rod (19) and the rotating rod (5); a cam (1901) passes through the surface of the strip rod (19); and the cam (1901) is fixedly connected to the strip rod (19).

9. A simple installation tool for a satellite antenna according to claim 8, characterized in that: The right side surface of the third L-shaped plate (18) is fixedly connected to a T-shaped connecting plate (21), and the end surface of the T-shaped connecting plate (21) away from the third L-shaped plate (18) is fixedly connected to a piston cylinder (22), the internal piston of the piston cylinder (22) is connected to a piston plate (23), and the top surface of the piston plate (23) is fixedly connected to a sliding rod (24), the sliding rod (24) passes through the piston cylinder (22) and is slidably connected to the piston cylinder (22), the top surface of the sliding rod (24) is fixedly connected to a contact plate (25), and the surface of the sliding rod (24) is sleeved with a first spring (26).

10. A simple installation tool for a satellite antenna according to claim 9, characterized in that: One end of the first spring (26) is fixedly connected to the contact plate (25), and the other end of the first spring (26) is fixedly connected to the piston cylinder (22). A spray pipe (27) runs through the surface of the clamping plate (7), and the spray pipe (27) is slidably connected to the clamping plate (7). An output hose (28) is fixedly connected between the spray pipe (27) and the piston cylinder (22). A second spring (29) is sleeved on the surface of the spray pipe (27), and one end of the second spring (29) is fixedly connected to the clamping plate (7), and the other end of the second spring (29) is fixedly connected to the spray pipe (27). An air intake pipe (30) is fixedly connected to the surface of the piston cylinder (22), and a one-way valve (31) is fixedly installed on both the air intake pipe (30) and the output hose (28).

Images