Pneumatic height-adjustable horse stool and use method thereof

Abstract

The invention discloses a pneumatic height-adjustable horse stool and a use method thereof, the pneumatic height-adjustable horse stool comprises: a base, two ends of the upper side are provided with a liftable upper table top through support legs, and the middle of the upper side is provided with a driving mechanism for driving the upper table top to lift; the supporting legs are arranged on the two sides of the driving mechanism respectively, the upper ends and the lower ends of the supporting legs are hinged to the upper table top and the base respectively, and anti-falling mechanisms for preventing the upper table top from falling are arranged on the supporting legs; the driving mechanism comprises a mounting plate arranged in the middle of the base, a pneumatic lifting rod is arranged on the upper side of the mounting plate, a pneumatic electromagnetic valve for controlling the gas flow direction is arranged on one side of the pneumatic lifting rod, an air pump is arranged on one side of the pneumatic electromagnetic valve, and a sensor for detecting the pressure in the pneumatic lifting rod is arranged on one side of the pneumatic lifting rod; and a controller for controlling the pneumatic electromagnetic valve and the safety mechanism is arranged on one side of the sensor. The device has the advantages of being low in cost and convenient to maintain.

Description

Technical Field

[0001] This invention relates to a pneumatic height-adjustable treadmill and its method of use, particularly a treadmill with height adjustment achieved through a pneumatic mechanism and its method of use. Background Technology

[0002] In a broad sense, a trestle refers to a traditional stool resembling a horse; in a narrow sense, it refers to a construction tool used for temporary support and working at heights in building construction. As a type of building material support equipment, its main body is mostly made of metal materials such as iron and Q235 steel. Existing trestles are generally not height-adjustable, resulting in poor applicability. Some trestles achieve height adjustment through hydraulic mechanisms, which are costly, and troubleshooting and repairing hydraulic mechanisms are more difficult. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatic height-adjustable treadmill and its method of use. It has the advantages of low cost and easy maintenance.

[0004] The technical solution of this invention: a pneumatic height-adjustable treadmill, comprising:

[0005] The base has a liftable upper platform at both ends of the upper side via support legs, and a drive mechanism for raising and lowering the upper platform is located in the middle of the upper part.

[0006] The support legs are in two sets, located on both sides of the drive mechanism. The upper and lower ends are hinged to the upper platform and the base, respectively. The support legs are equipped with a fall protection mechanism to prevent the upper platform from falling.

[0007] The drive mechanism includes a mounting plate located in the middle of the base, a pneumatic lifting rod on the upper side of the mounting plate, a pneumatic solenoid valve on one side of the pneumatic lifting rod to control the gas flow direction, an air pump on one side of the pneumatic solenoid valve, and a digital pressure switch on one side of the pneumatic lifting rod for detecting the internal pressure of the pneumatic lifting rod and having a control function.

[0008] In the aforementioned pneumatic height-adjustable treadmill, the support leg includes two sets of first support rods with their lower ends hinged to the base end, a second support rod hinged to the upper end of the first support rod, the upper end of the second support rod hinged to the upper platform, and a horizontally arranged connecting rod between the lower ends of the second support rods.

[0009] In the aforementioned pneumatic height-adjustable treadmill, the fall prevention mechanism includes racks mounted on connecting rods in the two sets of support legs. A mounting plate is provided in the middle of the two racks, and a gear meshing with the two sets of racks is provided in the mounting plate. A locking block corresponding to the gear is provided on one side of the gear, and an electromagnet is provided on one side of the locking block.

[0010] In the aforementioned pneumatic height-adjustable trestle, the mounting plate is provided with guide wheels corresponding to the rack, and a mounting shaft for mounting gears is provided between the guide wheels.

[0011] In the aforementioned pneumatic height-adjustable treadmill, the locking block includes a protrusion corresponding to the gear, a mounting part is provided on one side of the protrusion, and a spring is provided on the mounting part sleeved outside the valve core.

[0012] In the aforementioned pneumatic height-adjustable treadmill, a shelf is provided on the upper side of the upper platform.

[0013] In the aforementioned pneumatic height-adjustable treadmill, the shelf includes a mounting frame vertically mounted at one end of the upper platform. The upper half of the mounting frame is provided with a mesh frame that can be flipped relative to the mounting frame, and the lower half of the mounting frame is provided with a support platform that can be flipped relative to the mounting frame. One end of the support platform is provided with a support frame that is hinged to the support platform.

[0014] In the aforementioned pneumatic height-adjustable treadmill, the base has first rollers on both sides at one end and a second roller in the middle at the other end. The second roller has screws on both sides and a support foot on the lower side of the screws.

[0015] The method for using a pneumatic height-adjustable treadmill includes the following steps:

[0016] S1. When driving the upper platform to rise, firstly, the locking block is separated from the gear by the electromagnet, air is supplied by the air pump, and the pneumatic solenoid valve is controlled to make the pneumatic lifting rod rise, thereby realizing the lifting and lowering of the upper platform. Then, the electromagnet is turned off, so that the locking block is engaged with the gear under the action of the spring.

[0017] S2. The pressure inside the pneumatic lifting rod is detected in real time by a digital pressure switch. When the pressure inside the pneumatic lifting rod decreases, the air pump and pneumatic solenoid valve are controlled to replenish the air to the pneumatic lifting rod to maintain a constant pressure.

[0018] S3. When the upper platform descends, the locking block is separated from the gear by the electromagnet, and the pneumatic lifting rod is released by switching the pneumatic solenoid valve passage to achieve the height adjustment of the upper platform.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This application utilizes a pneumatic lifting rod as a power source to raise and lower the height of the trestle, which is cost-effective and easy to maintain. Furthermore, a digital pressure switch detects the internal pressure of the pneumatic lifting rod in real time, controlling the operation of the pneumatic solenoid valve and air pump to maintain a constant internal pressure, preventing safety hazards caused by pressure fluctuations during use. A fall prevention mechanism is also included; in the event of a sudden drop in pressure on the pneumatic lifting rod, a locking block blocks the gear, preventing the gear and rack from rotating and thus preventing the platform height from decreasing, ensuring good safety. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the fall protection mechanism of the present invention.

[0024] The labels in the attached diagram are as follows: 1-base, 2-support leg, 2.1-first support rod, 2.2-second support rod, 2.3-connecting rod, 3-upper platform, 4-mounting plate, 5-pneumatic lifting rod, 6-pneumatic solenoid valve, 7-air pump, 8-digital pressure switch, 10-rack, 11-mounting plate, 12-gear, 13-locking block, 14-electromagnet, 15-guide wheel, 16-mounting shaft, 17-protrusion, 18-mounting part, 19-spring, 20-shelf, 21-mounting frame, 22-net frame, 23-support platform, 24-support frame, 25-first roller, 26-second roller, 27-screw, 28-support foot. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0026] Example: A pneumatic height-adjustable trestle, configured as follows... Figure 1-3 As shown, it includes:

[0027] The base 1 has a liftable upper platform 3 at both ends of the upper side via support legs 2, and a drive mechanism for lifting the upper platform 3 is provided in the middle of the upper part.

[0028] Support legs 2, there are two sets, the support legs 2 are located on both sides of the drive mechanism, and the upper and lower ends are respectively hinged to the upper platform 3 and the base 1. The support legs 2 are equipped with a fall prevention mechanism to prevent the upper platform 3 from falling.

[0029] The drive mechanism includes a mounting plate 4 located in the middle of the base 1. A pneumatic lifting rod 5 is provided on the upper side of the mounting plate 4. A pneumatic solenoid valve 6 for controlling the gas flow direction is provided on one side of the pneumatic lifting rod 5. An air pump 7 is provided on one side of the pneumatic solenoid valve 6. A digital pressure switch 8 for detecting the internal pressure of the pneumatic lifting rod 5 and having a control function is provided on one side of the pneumatic lifting rod 5.

[0030] The supporting leg 2 includes two sets of first support rods 2.1 with their lower ends hinged to the end of the base 1. The upper end of the first support rod 2.1 is hinged to a second support rod 2.2. The upper end of the second support rod 2.2 is hinged to the upper platform 3. A horizontally arranged connecting rod 2.3 is provided between the lower ends of the second support rods 2.2.

[0031] The fall protection mechanism includes racks 10 mounted on connecting rods 2.3 in the two sets of support legs 2. A mounting plate 11 is provided in the middle of the two racks 10. A gear 12 that meshes with the two sets of racks 10 is provided in the mounting plate 11. A locking block 13 corresponding to the gear 12 is provided on one side of the gear 12. An electromagnet 14 is provided on one side of the locking block 13.

[0032] The mounting plate 11 is provided with guide wheels 15 corresponding to the rack 10, and a mounting shaft 16 for mounting the gear 12 is provided between the guide wheels 15.

[0033] The locking block 13 includes a protrusion 17 corresponding to the gear 12, and a mounting part 18 is provided on one side of the protrusion 17. The mounting part 18 is provided with a spring 19 sleeved on the valve core.

[0034] The base 1 has first rollers 25 on both sides at one end and second rollers 26 in the middle at the other end. The second rollers 26 have screws 27 on both sides and support feet 28 on the lower side of the screws 27.

[0035] A shelf 20 is provided on the upper side of the upper table surface 3.

[0036] The storage rack 20 includes a mounting frame 21 vertically arranged at one end of the upper table 3. The upper half of the mounting frame 21 is provided with a mesh frame 22 that can be flipped relative to the mounting frame 21. The lower half of the mounting frame 21 is provided with a support table 23 that can be flipped relative to the mounting frame 21. One end of the support table 23 is provided with a support frame 24 that is hinged to the support table 23.

[0037] The aforementioned space frame 22 and support platform 23 include a stowed state and an unfolded state. In the stowed state, the space frame 22, support platform 23, and support frame 24 are parallel to the mounting frame 21. In the unfolded state, the space frame 22 and support platform 23 are perpendicular to the mounting frame 21, and the support frame 24 is perpendicular to the support platform 23 and its lower end abuts against the upper platform 3.

[0038] The method for using a pneumatic height-adjustable treadmill includes the following steps:

[0039] S1. When the upper platform 3 is driven to rise, the locking block 13 is first separated from the gear 12 by the electromagnet 14, the air pump 7 supplies air and controls the pneumatic solenoid valve 6 to lift the pneumatic lifting rod 5, thereby lifting the upper platform 3. The electromagnet 14 is then closed, so that the locking block 13 engages with the gear 12 under the action of the spring 19.

[0040] S2. The pressure inside the pneumatic lifting rod 5 is detected in real time by the digital display pressure switch 8. When the pressure inside the pneumatic lifting rod 5 decreases, the air pump 7 and the pneumatic solenoid valve 6 are controlled to replenish the air to the pneumatic lifting rod 5 to maintain a constant pressure.

[0041] S3. When the upper platform 3 descends, the locking block 13 is separated from the gear 12 by the electromagnet 14. At the same time, the air is released by switching the pneumatic solenoid valve 6, so as to realize the height adjustment of the upper platform 3.

[0042] In this embodiment, the pneumatic lifting rod 5 serves as the power source to raise or lower the upper platform 3. Compared to conventional hydraulic lifting devices, the pneumatic lifting rod 5 is less expensive and easier to maintain. During the raising and lowering of the upper platform 3, the electromagnet 14 exerts a force on the locking block 13, which is made of magnetic metal. The locking block 13 separates from the gear 12, allowing the gear 12 to rotate. As the pneumatic lifting rod 5 pushes the upper platform up and down, the rack moves relative to the gear, causing the angle of the support leg 2 to change. After the height of the upper platform 3 is adjusted, the electromagnet 14 stops working, the locking block resets under the action of the spring, and engages with the gear 12, so that the gear 12 cannot rotate, thus locking the rack position. The spacing between the connecting rods 2.3 of the support leg 2 cannot be changed, thus locking the support leg 2. At the same time, the pressure inside the pneumatic lifting rod 5 is detected in real time by the digital display pressure switch 8. When the pressure change reaches the threshold, the digital display pressure switch 8 controls the air pump 7 and the pneumatic solenoid valve 6 to replenish the air to the pneumatic lifting rod 5, preventing the height of the upper platform from changing during operation, thus ensuring good reliability and safety.

Claims

1. A pneumatic height-adjustable treadmill, characterized in that, include: The base (1) has a liftable upper platform (3) at both ends of the upper side via support legs (2), and a drive mechanism for driving the upper platform (3) to rise and fall is provided in the middle of the upper part; Support legs (2) are in two sets. The support legs (2) are located on both sides of the drive mechanism. The upper and lower ends are respectively hinged to the upper platform (3) and the base (1). The support legs (2) are equipped with a fall prevention mechanism to prevent the upper platform (3) from falling. The drive mechanism includes a mounting plate (4) located in the middle of the base (1), a pneumatic lifting rod (5) on the upper side of the mounting plate (4), a pneumatic solenoid valve (6) for controlling the gas flow direction on one side of the pneumatic lifting rod (5), an air pump (7) on one side of the pneumatic solenoid valve (6), and a digital pressure switch (8) for detecting the internal pressure of the pneumatic lifting rod (5) and having a control function on one side of the pneumatic lifting rod (5).

2. The pneumatic height-adjustable treadmill according to claim 1, characterized in that: The support leg (2) includes two sets of first support rods (2.1) with their lower ends hinged to the end of the base (1). The upper end of the first support rod (2.1) is hinged to a second support rod (2.2). The upper end of the second support rod (2.2) is hinged to the upper platform (3). A horizontally arranged connecting rod (2.3) is provided between the lower ends of the second support rod (2.2).

3. The pneumatic height-adjustable treadmill according to claim 1, characterized in that: The fall protection mechanism includes racks (10) set on connecting rods (2.3) in two sets of support legs (2), a mounting plate (11) is provided in the middle of the two racks (10), a gear (12) is provided in the mounting plate (11) to mesh with the two sets of racks (10), a locking block (13) corresponding to the gear (12) is provided on one side of the gear (12), and an electromagnet (14) is provided on one side of the locking block (13).

4. The pneumatic height-adjustable treadmill according to claim 3, characterized in that: The mounting plate (11) is provided with guide wheels (15) corresponding to the rack (10), and a mounting shaft (16) for mounting gears (12) is provided between the guide wheels (15).

5. The pneumatic height-adjustable treadmill according to claim 3, characterized in that: The locking block (13) includes a protrusion (17) corresponding to the gear (12), and a mounting part (18) is provided on one side of the protrusion (17). The mounting part (18) is provided with a spring (19) sleeved on the valve core.

6. The pneumatic height-adjustable treadmill according to claim 1, characterized in that: The upper side of the tabletop (3) is provided with a shelf (20).

7. The pneumatic height-adjustable treadmill according to claim 6, characterized in that: The storage rack (20) includes a mounting frame (21) vertically mounted at one end of the upper table (3). The upper half of the mounting frame (21) is provided with a mesh frame (22) that can be flipped relative to the mounting frame (21). The lower half of the mounting frame (21) is provided with a support table (23) that can be flipped relative to the mounting frame (21). One end of the support table (23) is provided with a support frame (24) that is hinged to the support table (23).

8. The pneumatic height-adjustable treadmill according to claim 1, characterized in that: The base (1) has a first roller (25) on both sides at one end and a second roller (26) in the middle at the other end. The second roller (26) has a screw (27) on both sides and a support foot (28) on the lower side of the screw (27).

9. The pneumatic height-adjustable treadmill according to claim 1, characterized in that: The pneumatic solenoid valve (6) is a three-position five-way solenoid valve.

10. The method of using the pneumatic height-adjustable treadmill according to any one of claims 1-9, characterized in that: Includes the following steps: S1. When the upper platform (3) is driven to rise, the locking block (13) is first separated from the gear (12) by the electromagnet (14), the air pump (7) supplies air and controls the pneumatic solenoid valve (6) to lift the pneumatic lifting rod (5) to achieve the lifting of the upper platform (3), and the electromagnet (14) is closed so that the locking block (13) is engaged with the gear (12) under the action of the spring (19); S2. The pressure inside the pneumatic lifting rod (5) is detected in real time by the digital display pressure switch (8). When the pressure inside the pneumatic lifting rod (5) decreases, the air pump (7) and the pneumatic solenoid valve (6) are controlled to replenish the air to the pneumatic lifting rod (5) to maintain constant pressure. S3. When the upper platform (3) descends, the locking block (13) is separated from the gear (12) by the electromagnet (14), and the pneumatic lifting rod (5) is released by switching the pneumatic solenoid valve (6) passage to achieve the height adjustment of the upper platform (3).

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