Novel high stool for indoor construction

Abstract

A novel high stool for indoor construction comprises a high stool body, an electric push rod, supporting legs and a pressure sensor and further comprises a detection circuit and a prompt circuit. Supporting columns of the high stool body are of hollow structures, the upper ends of multiple sets of electric push rods are installed in the multiple supporting columns respectively, installation grooves are formed in the lower ends of supporting legs, and multiple sets of pressure sensors are installed in the installation grooves of the multiple sets of supporting legs respectively. The lower ends of the multiple sets of electric push rods and the upper ends of the multiple sets of supporting legs are hinged together. And the detection circuit and the prompt circuit are arranged in the element box and are electrically connected. According to the novel stool, the heights of the four supporting legs of the stool body can be controlled respectively, convenience is brought to a user, and the balance degree of the upper end of the stool body during use is guaranteed; when a user works on the high stool body and the high stool body inclines, sound can be made in time to prompt the user to pay attention to safety, so that the probability that the user falls from a high place is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of decoration auxiliary equipment, in particular to a novel high stool used for indoor construction. Background Art

[0002] The high stool used for indoor construction is a widely used equipment. Its main function is to provide convenience for users to climb up and install lamps, wires, paint, and polish walls.

[0003] With the development of industrial technology, the technology of high stools used for indoor construction has also developed rapidly. The authorized patent of my country with patent number "201220635574.2" and patent name "Herringbone high stool ladder" records that "the structure of this product is stable, non-slip and insulated; the workbench can be used for sitting or standing, providing workers with more comfortable choices; the table and guardrail form are adopted to effectively improve the comfort and safety of operators." As can be seen from the above, although the comparative patent improves the comfort and safety of operators, it is limited by the structure and has the following technical disadvantages as the existing technology in this field. (1): The four supporting legs do not have the function of height adjustment. In this way, when the ground on the site is uneven, the user needs to pad other supports under the four supporting legs respectively to make the high stool in a horizontal state. The above method of padding or removing the supports will bring inconvenience to the user. More importantly, when the pad supports are loose or the four supporting legs are not balanced, there is a possibility that the upper end of the high stool will tilt and the user will fall. (2): It does not have a horizontality monitoring function. That is to say, when a user stands on a high stool to work, if any of the legs at the bottom of the high stool is uneven, there is a chance that the user will fall and get injured if the top of the high stool tilts. In summary, it is particularly necessary to provide a high stool that can easily adjust the height of the four legs and monitor the balance of the four legs in real time. Utility Model Content

[0004] In order to overcome the drawbacks of existing high stools due to structural limitations as described in the background, the utility model provides a new type of high stool for indoor construction based on a high stool body. In application, the user can conveniently control the heights of the four supporting legs separately through a power switch, which brings convenience to the user and ensures the balance of the upper end of the high stool body when in use. When the user is working on the high stool body and the high stool body tilts, the user can be promptly reminded to pay attention to safety, thereby reducing the probability of the user falling from a height.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A new type of high stool for indoor construction includes a high stool body, an electric push rod, a supporting foot, and a pressure sensor, and is characterized in that it also has a detection circuit and a prompt circuit; the electric push rod, the supporting foot, the detection circuit, the prompt circuit, and the pressure sensor are respectively provided with multiple sets; the supporting column of the high stool body is a hollow structure, the upper ends of the multiple sets of electric push rods are respectively installed in the multiple supporting columns, the lower ends of the supporting feet are provided with mounting grooves, and the multiple sets of pressure sensors are respectively installed in the multiple sets of supporting foot mounting grooves; the lower ends of the multiple sets of electric push rods and the upper ends of the multiple sets of supporting feet are respectively hinged and installed together; the detection circuit and the prompt circuit are installed in a component box; the signal output ends of the multiple sets of pressure sensors and the signal input ends of the multiple sets of detection circuits are respectively electrically connected, and the signal output ends of the multiple sets of detection circuits and the signal input ends of the multiple sets of prompt circuits are respectively electrically connected.

[0007] Furthermore, a buffer pad is installed at the lower end of each set of pressure sensors, and the height of the lower end of the buffer pad is lower than the height of the lower end of the supporting foot.

[0008] Furthermore, the detection circuit includes an electrically connected adjustable resistor, a resistor, and a three-terminal voltage detector, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to the power input end of the three-terminal voltage detector, and the negative power input end of the three-terminal voltage detector is connected to the other end of the first resistor.

[0009] Furthermore, the prompt circuit includes an electrically connected resistor and a transistor, and one end of the resistor is connected to the base of the transistor.

[0010] Furthermore, the multiple prompt circuits share one buzzer, and the positive power input terminal of the buzzer is connected to the collector of the transistor.

[0011] Compared with the prior art, the utility model has the following beneficial effects: (1) The utility model is based on the high stool body. The user can conveniently control the height of the push columns of the four electric push rods through the power switch, and then control the height of the four supporting feet of the high stool body respectively, so that the corresponding one or more supporting feet can move to a suitable height, and the lower ends of the four supporting feet can effectively contact the ground. The power switch control method brings convenience to the user and ensures the balance of the upper end of the high stool body when it is in use; (2) When the user is working on the high stool body and the high stool body tilts, the corresponding set of pressure sensors, prompt circuits, and detection circuits work together to promptly sound a reminder for the user to pay attention to safety, thereby reducing the chance of the user falling from a height. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure and partial enlargement of the utility model.

[0014] Figure 2 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in, a new type of high stool for indoor construction includes a battery G1 (12V / 10Ah), a power switch SN, a high stool body 1, an electric push rod MN, a support leg 2, a pressure sensor A1N, and a detection circuit 3 and a prompt circuit 4; the electric push rod MN, the support leg 2, the detection circuit 3, the prompt circuit 4, the pressure sensor A1N, and the power switch SN are respectively provided with four sets, and the four supporting columns 101 of the high stool body 1 are respectively provided with a set of electric push rod MN, the support leg 2, the detection circuit 3, the prompt circuit 4, the pressure sensor A1N, and the power switch SN; the supporting column 101 is a hollow structure, and the cylinders of the four sets of electric push rods MN are vertically distributed and respectively welded and installed in the middle and lower ends of the four supporting columns 101, and the electric push rods MN The movable column is located at the lower end, and the lower end of the supporting foot 2 has a concave installation groove. Four sets of pressure sensors A1N are respectively installed in the installation grooves of the four sets of supporting feet 2 by bolts, and their force-bearing surfaces are located at the lower end; the lower ends of the push columns of the four sets of electric push rods MN and the upper middle parts of the four sets of supporting feet 2 are respectively hinged and installed together (a support seat with an axial hole is welded outside the upper middle part of the supporting foot 2, and the lower end of the push column has an axial hole. The push column and the support seat are hinged and installed together through the axial hole, and the supporting foot can move freely to the left or right along the lower end of the push column and is convenient to fit the ground); the battery G1, the power switch SN (the handle is located outside the front end opening of the component box), the detection circuit 3 and the prompt circuit 4 are installed on the circuit board in the component box 5, and the component box 5 is installed at the lower part of the front end support plate 102 on the upper part of the high stool body.

[0016] Figure 1 , 2 As shown, the lower end of each set of pressure sensor A1N is glued with a buffer rubber pad 6, and the lower end height of the rubber pad 6 is slightly lower than the lower end height of the support foot 2 (to ensure that the lower end of the force-bearing surface of the pressure sensor contacts the ground). Each set of detection circuits includes an adjustable resistor RP1, resistors R1 and R2, and a three-terminal voltage detector A2N connected via circuit board wiring. One end of the adjustable resistor RP1 is connected to one end of the first resistor R1 and one end of the second resistor R2. The other end of the second resistor R2 is connected to the power input terminal 2 pin of the three-terminal voltage detector A2N. The negative power input terminal 3 pin of the three-terminal voltage detector A2N is connected to the other end of the first resistor R1. The prompt circuit includes a resistor R3 and a transistor Q1 connected via circuit board wiring. One end of the resistor R1 is connected to the base of the transistor Q1. The four sets of prompt circuits share a buzzer B, and the positive power input terminal of the buzzer B is connected to the collector of the transistor Q1.

[0017] Figure 1 , 2 As shown, the two poles of the battery G1 and the two ends of the charging socket CZ are connected by wires (when the battery G1 is out of power, the external power charger plug is inserted into the charging socket to charge the battery), and are connected in series with the power input terminals 1 and 2 of the four pressure sensors A1N, the other end of the power input resistor R1 of the four detection circuits, the emitter of the power input transistor Q1 of the four prompt circuits and the negative power input terminal of the buzzer B, and the power input terminals 1 and 2 of the four power switches SN. The power output terminals 3, 4 and 5, 6 of the four power switches SN are connected to the positive and negative and negative and positive power input terminals of the four electric push rods MN respectively by wires. The signal output terminals of the four pressure sensors A1N and the other end of the adjustable resistor RP1 at the signal input terminal of the four detection circuits are connected by wires, and the output terminal 1 of the three-terminal voltage detector A2N at the signal output terminal of the four detection circuits and the other end of the resistor R3 at the signal input terminal of the four prompt circuits are connected by wires.

[0018] Figure 1 , 2 As shown, after turning on the power switch AS1, the pressure sensor, the prompt circuit, the detection circuit, and the power switch are powered on and work. After the high stool body 1 (mature technology will not be described in detail in this application) is placed on the ground, if one or more sets of the lower ends of the four supporting feet 2 are not in good contact with the ground (including the lower ends of the supporting feet not contacting the ground, or the height of the place is too high, causing the high stool body to tilt), the staff will respectively turn the handles of the four sets of power switches SN to the left or right, and the 1, 2 feet and 3, 4 feet or 5, 6 feet of the four sets of power switches SN will be connected respectively. In this way, the positive and negative or negative-positive power input ends of the four sets of electric push rods MN are powered, and after the positive and negative power input ends of the corresponding electric push rods MN are powered, its movable column pushes the supporting feet 2 to descend in height (turn off the power switch SN after it is in place), and after the negative and positive power input ends of the corresponding electric push rods MN are powered, its movable column drives the supporting feet 2 to rise in height (turn off the power switch SN after it is in place). Through the above, the new model can conveniently adjust the grounding height of the four sets of support feet at the lower end of the high stool body 1, ensuring that the support plate 102 at the upper end of the high stool body is in a horizontal state, preventing the user from falling when standing on the inclined support plate 102.

[0019] Figure 1 , 2As shown, among the four sets of pressure sensors, prompt circuits, detection circuits and four sets of support columns 101 of the high stool body, after the user stands on the support plate 102 of the high stool body, when the support feet at the lower ends of the four sets of support columns 101 and the lower ends of the force-bearing surfaces of the pressure sensors effectively contact the ground, the force acting on the force-bearing surface of the corresponding set of pressure sensors A1N is relatively large, and its 3rd foot outputs a relatively high voltage signal. The voltage signal is divided by the corresponding adjustable resistor RP1 and the corresponding resistor R1, and the corresponding resistor R2 reduces the voltage and limits the current to enter the 2nd foot signal voltage of the corresponding three-terminal voltage detector A2N, which is higher than the 4.75V voltage inside the corresponding three-terminal voltage detector A2N. The 1st foot of the corresponding three-terminal voltage detector A2N outputs a high level, the corresponding transistor Q1 will not be turned on, and the corresponding buzzer B will not be powered on to sound, indicating that the support feet at this location effectively contact the ground, and the user will not fall due to tilt after standing on the support plate 102. When the supporting feet at the lower end of the corresponding set of supporting columns 101 and the lower end of the force-bearing surface of the pressure sensor do not effectively contact the ground (the height of the supporting feet at this location is relatively high), the force acting on the force-bearing surface of the corresponding set of pressure sensor A1N is relatively small, and its 3rd pin outputs a relatively low voltage signal. The voltage signal is divided by the corresponding adjustable resistor RP1 and the corresponding resistor R1, and the corresponding resistor R2 reduces the voltage and limits the current to enter the 2nd pin signal voltage of the corresponding three-terminal voltage detector A2N, which is lower than the 4.75V voltage inside the corresponding three-terminal voltage detector A2N. The 1st pin of the corresponding three-terminal voltage detector A2N outputs a low level, and the low level is reduced and limited by the corresponding resistor R3 to enter the base of a corresponding transistor Q1. The corresponding transistor Q1 will turn on the collector to output a low level and enter the negative and positive power input terminals of the corresponding buzzer B. The corresponding buzzer B will be powered and sound, indicating that one of the sets of supporting feet does not effectively contact the ground. If the user continues to stand on the support plate 102, there is a probability of falling due to tilt.

[0020] Figure 1 , 2 As shown, through all the above technical solutions, the utility model can conveniently control the heights of the four supporting feet of the high stool body separately, so that the corresponding one or more supporting feet can move to a suitable height, and the lower ends of the four supporting feet can effectively contact the ground. The power switch control brings convenience to the user and ensures the balance of the upper end of the high stool body when it is in use; when the user is working on the high stool body and the high stool body tilts, the utility model can promptly sound to remind the user to pay attention to safety, thereby reducing the chance of the user falling from a height. Figure 2In the figure, the resistance values ​​of resistors R1, R2 and R3 are 4.7K, 10K and 10K respectively; the transistor Q1 is a PNP transistor of model 9012; the buzzer B is a finished active continuous sound buzzer alarm of model FM12V; the three-terminal voltage detector A2N is of model AN051A; the resistance value of the adjustable resistor RP1 is 10K (adjusted to 9.1K in this embodiment); the pressure sensor A1N is a finished weighing pressure sensor of model ZNHM-I, which has two power input terminals and one signal output terminal. When working, the greater the pressure detected by the force-bearing surface, the higher the voltage signal output by the signal output terminal, and vice versa.

[0021] Those skilled in the art should understand that although this specification is described in accordance with the implementation methods, the implementation methods do not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. Therefore, the scope of protection of this application is defined by the claims.

Claims

1. A new type of high stool for indoor construction, comprising a high stool body, an electric push rod, a supporting foot, and a pressure sensor, characterized in that: It also has a detection circuit and a prompt circuit; there are multiple sets of electric push rods, supporting feet, detection circuits, prompt circuits, and pressure sensors; the supporting columns of the high stool body are hollow structures, the upper ends of multiple sets of electric push rods are respectively installed in multiple supporting columns, the lower ends of the supporting feet have installation grooves, and multiple sets of pressure sensors are respectively installed in multiple sets of supporting foot installation grooves; the lower ends of the multiple sets of electric push rods and the upper ends of the multiple sets of supporting feet are respectively hinged and installed together; the detection circuit and prompt circuit are installed in a component box; the signal output ends of the multiple sets of pressure sensors and the signal input ends of the multiple sets of detection circuits are respectively electrically connected, and the signal output ends of the multiple sets of detection circuits and the signal input ends of the multiple sets of prompt circuits are respectively electrically connected.

2. The new high stool for indoor construction according to claim 1 is characterized in that: A buffer pad is installed at the lower end of each set of pressure sensors, and the height of the lower end of the buffer pad is lower than the height of the lower end of the supporting foot.

3. The new high stool for indoor construction according to claim 1 is characterized in that: The detection circuit includes an electrically connected adjustable resistor, a resistor, and a three-terminal voltage detector, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to the power input end of the three-terminal voltage detector, and the negative power input end of the three-terminal voltage detector is connected to the other end of the first resistor.

4. The new high stool for indoor construction according to claim 1 is characterized in that: The prompt circuit comprises an electrically connected resistor and a transistor, wherein one end of the resistor is connected to the base of the transistor.

5. The new high stool for indoor construction according to claim 4 is characterized in that: A plurality of prompt circuits share one buzzer, and the positive power input terminal of the buzzer is connected to the collector of the transistor.

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