A safety stool for working on a space frame and its usage method

Abstract

This invention discloses a safety stool for space frame operations and its usage method, comprising a base, a first connecting base, an elastic band, two outer clamping plates, a second connecting base, two inner clamping plates, a third connecting base, a bottom plate, a spring, an elastic waist belt, and a safety buckle; the upper assembly is fixed to the lower middle of the base, the elastic band is fixed to the front and back of the base, the elastic waist belt is fixed to the left and right sides of the base, the outer clamping plates are connected to the lower sides of the base via the first connecting base, the safety buckle is fixed to the upper front of the first section of the left outer clamping plate, the buckle is fixed to the upper front of the first section of the right outer clamping plate, the inner clamping plates are connected to the lower part of the second section of the outer clamping plates via the second connecting base, the bottom plate is connected to the upper end of the inner clamping plates via the third connecting base, the lower assembly is fixed to the upper middle of the bottom plate, and the spring is embedded between the upper and lower assemblies.

Description

Technical Field

[0001] This invention belongs to the field of space frame structure construction, and in particular to a safety stool that assists workers in space frame operations and its usage method. Background Technology

[0002] Currently, during the construction of space frame structures, whether it's space frame assembly, purlin installation, or roof panel laying, workers generally need to perform bolting and welding on the space frame. Given the high-altitude, fixed-point work, ensuring ease of construction while prioritizing worker safety is crucial.

[0003] When working on a space frame, it is often necessary to stop on a single chord for a certain period of time. During this process, it is necessary to maintain body balance while completing a series of tasks such as assembly. Without other assistance, it is extremely dangerous and slow on column members. Not only must one overcome psychological fear, but one must also pay attention to the ground at all times. Over a long period of time, it is easy to cause numbness in the legs and feet and loss of concentration. Therefore, a device is needed to assist workers in operating the space frame safely.

[0004] Existing technologies cannot solve the problem of workers being fixed in place for extended periods during space frame construction, especially in dangerous high-altitude conditions. The solution should not only save time and effort but also provide workers with a rest platform.

[0005] For example, Chinese Utility Model Patent Publication No. CN218683078U discloses a portable folding stool for an electric lifting device, including a hanging and dismantling assembly. The lower end of the hanging and dismantling assembly is provided with a foot pedal assembly via a foot pedal assembly rotation shaft. An aluminum foot pedal tube is inserted into the foot pedal assembly. The portable folding stool and the electric lifting device are fixed by a double locking mechanism, and the connection is firm and reliable. After the stool is fixed to the electric lifting device, its center of gravity is stable and will not shift due to the presence of a person, thus not affecting high-altitude operations.

[0006] Chinese invention patent publication number CN1314738A discloses a pole-mounted work quick-fix safety bearing device. The device can be used to install bearing components such as a stool, work platform, stand / sit platform, toolbox, climbing device, and tow wheel on the "T"-shaped unit bracket extending from the pole quick-fix device. This invention changes pole-mounted work from a tilted standing position to an upright position parallel to the pole, allowing for sitting or standing.

[0007] Both types of stools require an electric mechanism and do not have independent operation. However, space and load-bearing capacity are often limited when working at the top of a space frame, making it impossible to accommodate heavy or large equipment. Summary of the Invention

[0008] The present invention aims to overcome the above-mentioned defects of the prior art and provide a method for using a safety stool for space frame operations that is structurally stable, safe and reliable, easy to operate, can be used by a single person, and is highly efficient.

[0009] The objective of this invention is achieved through the following technical solution:

[0010] The system includes a base, with two first connecting bases fixed to the bottom sides of the base. Two elastic bands are fixed to the front and rear sides of the base. Two symmetrical outer clamping plates are hinged to the two first connecting bases. Each outer clamping plate includes an upper, middle, and lower part that are continuously bent inward. An upper sleeve is fixed to the bottom center of the base. A bottom plate is provided between the two outer clamping plates. A lower sleeve is provided at the top center of the bottom plate. A spring connects the upper and lower sleeves. Third connecting bases are provided on both sides of the bottom plate. Inner clamping plates are hinged to the third connecting bases. A second connecting base is provided between the middle and lower parts. The second connecting base is hinged to the end of the inner clamping plate.

[0011] To make the safety seat easy to carry and use at any time, elastic waist belts are fixed to the left and right sides of the base. The buckle and the buckle are respectively fixed to the free end of the elastic waist belt, and the safety seat can be worn on the body through the elastic belt and elastic waist belt.

[0012] To enable the clamping and opening of the lower clamping plate of the safety stool, the inner clamping plate can rotate around the base plate. When the base plate contacts the rod and applies a certain pressure, it will drive the inner and outer clamping plates to rotate around the base and clamp the rod. When the base plate leaves the rod and the pressure disappears, it will drive the inner and outer clamping plates to rotate around the base and release the rod, thus achieving the extension and retraction of the clamping plate.

[0013] Furthermore, the first connecting base includes a first base and a first connecting rod.

[0014] Furthermore, the first connecting base includes a second base and a second connecting rod.

[0015] Furthermore, the first connecting base includes a third base and a third connecting rod.

[0016] Furthermore, one end of the safety strap is fixed to the upper part of an outer clamping plate, and the pin is fixed to the upper part of another outer clamping plate. A rubber cap is fixed to the upper part of the pin, and a limiting ring is provided at the other end of the safety strap to engage with the rubber cap. The diameter of the pin is slightly smaller than the diameter of the limiting ring, and the diameter of the rubber cap is slightly larger than the diameter of the limiting ring, ensuring that the safety strap can be secured to the pin through the limiting ring and will not fall off in a natural state, thereby ensuring personnel safety.

[0017] Furthermore, the inner clamping plate has insertion holes at both ends that mate with the second connecting base and the third connecting base, respectively.

[0018] Furthermore, the inner side of the outer clamping plate, the inner side of the inner clamping plate, and the lower surface of the bottom plate are covered with anti-slip rubber sheets. When the outer clamping plate, the inner clamping plate, and the bottom plate clamp the rod, the anti-slip rubber sheets increase the friction, so that the safety stool is firmly fixed on the rod, thereby enhancing personnel safety.

[0019] Furthermore, the first, second, and third connecting bases can all be disassembled and rotated individually.

[0020] Furthermore, the base, outer clamping plate, inner clamping plate, and bottom plate are made of lightweight aluminum alloy, which reduces the burden on workers and enhances practicality.

[0021] Furthermore, when the safety stool is in its natural state, there is a certain distance between the two outer clamping plates, preferably greater than the diameter of a conventional rod.

[0022] A safety stool for working on a space frame and its method of use include the following steps:

[0023] Step A: Connect the base, outer clamping plate, inner clamping plate, bottom plate and spring of the stool into a whole by connecting the first, second and third connecting bases and the upper and lower kits. When workers need to work or rest on the grid, they can put the safety stool on their buttocks in advance using elastic belts and elastic waist belts.

[0024] Step B: After the worker arrives at the work point on the space frame and hangs the safety rope, he can squat down so that the poles on the space frame are exactly between the two outer clamping plates. Then, he sits down and uses the spring compression to drive the outer clamping plates to clamp the poles.

[0025] Step C: When the work is completed and movement is required, the worker slowly stands up, causing the spring to return to its original position. The outer clamp then opens, allowing for the next step of movement. When the entire space frame work is completed or fixed-point work is no longer required, the worker can remove the safety stool at any time.

[0026] The beneficial effects of this invention are:

[0027] 1. When dealing with pole work, the elastic belt and elastic waistband can be worn by the worker, which is easy to carry and avoids the inconvenience of the worker walking and working on the pole. It is also very easy to put on and take off.

[0028] 2. When workers need to work at a fixed point or rest, the clamps of the safety stool can be extended or retracted. When sitting down, pressure is applied to compress the spring and clamp the safety belt. When finished, the clamps are released. Simply pull out the safety belt and stand up to release the spring and open the clamps. No extra complicated operations are required, which greatly improves the efficiency of workers while ensuring safety.

[0029] 3. When using the safety stool, ensure that the working rod is between the lower ends of the two outer clamps when sitting down. If the diameter of the working rod is smaller than the distance between the lower ends of the two outer clamps of the safety stool, you can sit down directly. If the diameter of the rod is too large, you need to manually pry it open and insert it. It can handle a wide range of working rod diameters and has strong versatility. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the base of the present invention;

[0033] Figure 3 This is a schematic diagram of the base of the present invention.

[0034] Figure 4 This is a schematic diagram of the outer clamping plate of the present invention;

[0035] Figure 5 This is a schematic diagram of the inner clamping plate of the present invention;

[0036] Figure 6 This is a schematic diagram of the base plate of the present invention;

[0037] The attached diagram is labeled as follows: 1. Base, 2. Upper kit, 3. First connecting base, 3-1. First base, 3-2. First connecting rod, 4. Elastic belt, 5. Outer clamp, 5-1. Left outer clamp, 5-2. Right outer clamp, 6. Second connecting base, 6-1. Second base, 6-2. Second connecting rod, 7. Anti-slip rubber sheet, 8. Inner clamp, 9. Third connecting base, 9-1. Third base, 9-2. Ground connecting rod, 10. Base plate, 11. Lower kit, 12. Spring, 13. Elastic waist belt, 14. Snap ring, 15. Buckle, 16. Pin, 17. Safety belt, 18. Limiting ring, 19. Rubber cap. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description. Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Before describing the embodiments, it is necessary to explain some essential terms. For example, if terms such as "first" and "second" are used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Therefore, the "first" element discussed below can also be referred to as the "second" element without departing from the teachings of the invention. It should be understood that when an element is referred to as "connected" or "linked" to another element, it may be directly connected or directly linked to the other element, or there may be an intermediate element. Conversely, when an element is referred to as "directly connected" or "directly linked" to another element, there is no intermediate element.

[0041] The various terms appearing in this application are used merely for the purpose of describing specific embodiments and are not intended to limit the invention. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. Terms such as “center,” “longitudinal,” “lateral,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” and “radial,” etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0042] When the terms “comprising” and / or “including” are used in this specification, these terms indicate the presence of the said feature, integral, step, operation, element and / or component, but do not exclude the presence and / or addition of more than one other feature, integral, step, operation, element, component and / or group thereof.

[0043] Please see Figure 1-6This invention provides a technical solution: a safety stool for working on a steel frame, including a base 1. An upper sleeve 2 is located at the center of the lower part of the base 1 for embedding and fixing a spring device. Two first bases 3-1 are symmetrically positioned at the middle of the two sides of the lower part of the base 1. Two elastic bands 4 are arranged at the front and rear of the base 1. One end of each elastic band 4 is symmetrically positioned at the middle of the front of the base 1, maintaining a certain distance between the two ends. The other end of each elastic band 4 is symmetrically positioned at the middle of the rear of the base 1, tightly connected to the other end. Elastic waist belts 13 are arranged on the upper left and right sides of the base 1. A retaining ring 14 and a buckle 15 are provided at the left end of each elastic waist belt 13, making it safe and convenient for the human body to wear. The two first bases 3-1 are detachably connected to two outer clamping plates 5 via two first connecting rods 3-2. The outer clamping plates 5 can rotate around the first connecting bases 3. Each outer clamping plate includes an upper, middle, and lower portion that are continuously bent inwards. Two second bases 6-1 are provided between the middle and lower portions of the two outer clamping plates 5. The two second bases 6-1 are detachably connected to two inner clamping plates 8 via two second connecting rods 6-2. One end of each inner clamping plate 8 can rotate around the second connecting base. Two third bases 9 are provided at both ends of the base plate 10. The two third bases 9-1 of each inner clamping plate are detachably connected to the two inner clamping plates 8 via two third connecting rods 9-2. The other end of each inner clamping plate 8 can rotate around the second connecting base. The lower inner side of the outer clamping plate 5, the inner side of the inner clamping plate 8, and the bottom... All plates 10 are provided with anti-slip rubber sheets 7 on their undersides, which play a role in preventing slippage and securing the rods when the safety stool is in operation. A lower assembly 11 is provided at the center of the upper part of the base plate 10. A spring 12 is provided between the lower assembly 11 and the upper assembly 2. The spring 12 is just embedded between the upper and lower assemblies, keeping them fixed and not easy to fall off, which facilitates the control of the contraction of the clamping plate. A safety strap 17 is provided at the upper front of the first section of the left outer clamping plate 5-1. A pin 16 is provided at the upper front of the first section of the right outer clamping plate 5-2. A row of limiting rings 18 is provided on the right side of the safety strap 17. A rubber cap 19 is provided on the upper part of the pin 16. The diameter of the rubber cap 19 is slightly larger than the diameter of the limiting ring 18, ensuring that the limiting ring 18 can be locked into the pin 16 without falling off naturally.

[0044] In practical use, the following steps are included:

[0045] Step A: Connect the base, outer clamping plate, inner clamping plate, bottom plate and spring of the stool to form a whole by connecting the base and upper and lower kits. When workers need to work or rest on the grid, they can put the safety stool on their buttocks in advance using elastic belts and elastic waist belts.

[0046] Step B: Rotate the base 1 and the outer clamping plate 5 through the first connecting base 3, rotate the outer clamping plate 5 and the inner clamping plate 8 through the second connecting base 6, rotate the inner clamping plate 8 and the bottom plate 10 through the third connecting base 9, and embed the spring 12 between the upper kit 2 and the lower kit 10 for fixation.

[0047] When aerial work is required, the worker inserts his legs between the two elastic belts 4 and pulls them upwards, pulling the base 1 down to his buttocks position. He then uses the buckle 14 and the buckle 15 to fasten the elastic waist belt 13 around his waist, and the safety stool is now worn.

[0048] Step C: When the worker arrives at the work site or needs to rest, after attaching the safety rope, he slowly squats down so that the poles on the grid are exactly between the two outer clamping plates 5, and then sits down. When the bottom plate 10 contacts the poles, the spring pressure 12 will compress and drive the clamping plates to clamp the poles. The anti-slip rubber sheet 7 on it plays an anti-slip role.

[0049] Step D: When the diameter of the working rod is much larger than the distance between the two ends of the third section of the two outer clamping plates 5, the worker needs to manually pry open the outer clamping plates 5 a little so that the rod can enter smoothly.

[0050] Step E: When workers need to work and rest for a long time, while clamping the rod with the outer clamping plate 5, inner clamping plate 8 and base plate 10, the appropriate limiting ring 18 on the safety belt 17 needs to be inserted into the pin 16. This process requires a certain amount of force to ensure that the limiting ring 18 can pass through the rubber cap 19 on the pin 16, so as to further ensure the safety of workers.

[0051] Step F: When the work is completed and movement is required, pull the safety belt 17 off the clip 16, the worker slowly stands up, causing the spring 12 to return to its original position, and the outer clamp 5 opens and detaches from the rod, so that the next step of movement can be carried out. When the entire space frame work is completed or fixed-point work is not required, the worker can remove the safety stool at any time through the elastic belt 4 and elastic waist belt 13, which is very convenient.

[0052] The remaining technical features in this embodiment can be flexibly selected by those skilled in the art to meet different specific practical needs. However, it is obvious to those skilled in the art that these specific details are not necessary to implement the present invention. In other instances, to avoid obscuring the present invention, well-known components, structures, or parts are not specifically described, and all are within the scope of technical protection defined by the claims of the present invention.

[0053] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" are used in a broad sense and should be interpreted broadly by those skilled in the art. For example, a connection can be a fixed connection, a movable connection, an integral connection, or a partial connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components, etc. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. That is, the expression of the written language can flexibly correspond to the implementation of the actual technology. The expression of the written language (including the drawings) in this specification does not constitute any single limiting interpretation of the claims.

[0054] Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this invention should be within the protection scope of the appended claims. In the above description, numerous specific details have been set forth to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other instances, to avoid obscuring the invention, well-known techniques, such as specific construction details, operating conditions, and other technical conditions, have not been specifically described.

Claims

1. A safety stool for working on a space frame, characterized in that: The base includes a base (1), two first connecting bases (3) are fixed to the bottom sides of the base, two elastic bands (4) are fixed to the front and rear sides of the base, two symmetrical outer clamps (5) are hinged on the two first connecting bases, the outer clamps include an upper part, a middle part and a lower part that are continuously bent inward, an upper sleeve (2) is fixed to the bottom center of the base, a bottom plate (10) is provided between the two outer clamps, a lower sleeve (11) is provided at the top center of the bottom plate, a spring (12) is connected between the upper sleeve and the lower sleeve, a third connecting base (9) is provided on both sides of the bottom plate, an inner clamp (8) is hinged to the third connecting base, a second connecting base (6) is provided between the middle part and the lower part, and the second connecting base is hinged to the end of the inner clamp.

2. The safety stool for working on a space frame according to claim 1, characterized in that, Elastic waistbands (13) are fixed to the left and right sides of the base (1), and the free ends of the elastic waistbands are respectively fixed with a retaining ring (14) and a buckle (15).

3. The safety stool for working on a space frame according to claim 1, characterized in that, The first connecting base includes a first base (3-1) and a first connecting rod (3-2).

4. The safety stool for working on a space frame according to claim 1, characterized in that, The second connecting base includes a second base (6-1) and a second connecting rod (6-2).

5. The safety stool for working on a space frame according to claim 1, characterized in that, The third connecting base includes a third base (9-1) and a third connecting rod (9-2).

6. The safety stool for working on a space frame according to claim 1, characterized in that, A safety strap (17) is provided on the upper front part of the first section of the left outer clamp, and a buckle (16) is provided on the upper front part of the first section of the other outer clamp. A rubber cap (19) is fixed on the upper part of the buckle (16), and a limiting ring (18) that engages with the rubber cap is provided on the other end of the safety strap (17).

7. The safety stool for working on a space frame according to claim 1, characterized in that, The inner clamping plate (8) has insertion holes at both ends that mate with the second connecting base and the third connecting base, respectively.

8. The safety stool for working on a space frame according to claim 1, characterized in that, The inner side of the outer clamping plate (5), the inner side of the inner clamping plate, and the lower surface of the bottom plate (10) are covered with anti-slip rubber sheets (7).

9. The safety stool for space frame operation according to claim 1, characterized in that when the spring is compressed, it can cause the inner and outer clamping plates to contract and clamp, and when the spring is relaxed, it can cause the inner and outer clamping plates to open.

10. A method of using a safety stool for space frame operations as described in any one of claims 1-9, characterized in that: Includes the following steps: Step A: Connect the base, outer clamping plate, inner clamping plate, bottom plate and spring of the stool into a whole by connecting the first, second and third connecting bases and the upper and lower kits. When workers need to work or rest on the grid, they can put the safety stool on their buttocks in advance using elastic belts and elastic waist belts. Step B: After the worker arrives at the work point on the space frame and hangs the safety rope, he can squat down so that the poles on the space frame are exactly between the two outer clamping plates. Then, he sits down and uses the spring compression to drive the outer clamping plates to clamp the poles. Step C: When the work is completed and movement is required, the worker slowly stands up, causing the spring to return to its original position. The outer clamp then opens, allowing for the next step of movement. When the entire space frame work is completed or fixed-point work is no longer required, the worker can remove the safety stool at any time.

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