Height distance measuring assembly and floor lamp

Abstract

The utility model discloses a height measuring assembly and a floor lamp. The height measuring assembly comprises a base; the first ends of the telescopic core pipes are connected with the base; the pressure sensing unit is mounted on the base, and the orthographic projection of the telescopic core tube on the base covers the orthographic projection of the pressure sensing unit on the base; the spring unit is arranged in the telescopic core tube, and the driving unit is arranged on the side, away from the telescopic core tube, of the base; the height measuring assembly and the floor lamp provided by the utility model have the advantages that the structure is simple, the height measurement and adjustment are realized by utilizing the change of a pressure value, the influence of external environmental factors can be reduced, the problem of measurement failure is avoided, and the accuracy of height adjustment is improved.

Description

Technical Field

[0001] This utility model relates to the field of parameter measurement technology, and in particular to a height ranging component and a floor lamp. Background Technology

[0002] As consumers demand height-adjustable home furnishings, these items are increasingly being equipped with height adjustment functions. However, the required height for adjustment still relies on experience or manual measurement, which can be inconvenient.

[0003] Existing height measurement methods for height adjustment include grating rulers and laser rangefinders. However, these measuring devices are complex in structure, expensive, and easily affected by external dust, which can cause measurement failures and lead to inaccurate height adjustment. Utility Model Content

[0004] This invention provides a height measuring component and a floor lamp. The structure is simple and utilizes changes in pressure value to achieve height measurement and adjustment. This can reduce the influence of external environmental factors, avoid measurement failure, and improve the accuracy of height adjustment.

[0005] In a first aspect, embodiments of the present invention provide a height ranging component, comprising:

[0006] Base;

[0007] At least one set of telescopic core tubes, the first end of which is connected to the base;

[0008] A pressure sensing unit is mounted on the base, and the orthographic projection of the telescopic core tube on the base covers the orthographic projection of the pressure sensing unit on the base.

[0009] A spring unit is disposed inside the telescopic core tube. The natural extension direction of the spring unit is parallel to the telescopic direction of the telescopic core tube. The first end of the spring unit is connected to the pressure sensing unit, and the second end of the spring unit is connected to the second end of the telescopic core tube.

[0010] The drive unit is located on the side of the base away from the telescopic core tube;

[0011] A screw is disposed on one side of the telescopic core tube. The base has a first through hole. The first end of the screw is connected to the drive unit through the first through hole. The second end of the screw is connected to the second end of the telescopic core tube by a thread.

[0012] Optionally, the altitude ranging component further includes:

[0013] A fixing part is provided on one side of the second end wall of the telescopic core tube;

[0014] The fixing part is integrally connected to the telescopic core tube. The fixing part has a second through hole, and the inner wall of the second through hole has a thread that is adapted to the screw. The second end of the screw passes through the second through hole.

[0015] Optionally, the height ranging component further includes: a telescopic sleeve, wherein the telescopic core tube and the screw are disposed inside the telescopic sleeve;

[0016] The first end of the telescopic sleeve is connected to the first end of the telescopic core tube, and the second end of the telescopic sleeve is connected to the second end of the telescopic core tube. The telescopic sleeve moves in conjunction with the telescopic core tube.

[0017] Optionally, the telescopic core tube includes: a first core tube and a second core tube;

[0018] The first end of the second core tube serves as the first end of the telescopic core tube, and the first end of the second core tube is connected to the base; the first end of the first core tube and the second end of the second core tube are sleeved together; the first core tube and the second core tube can move relative to each other within a preset distance; the second end of the first core tube serves as the second end of the telescopic core tube.

[0019] The inner diameter of the first core tube is greater than the diameter of the second core tube, or the inner diameter of the second core tube is greater than the diameter of the first core tube.

[0020] Optionally, the altitude ranging component further includes: a mounting part and a micro switch; wherein the inner diameter of the second core tube is larger than the diameter of the first core tube;

[0021] The second end of the second core tube has a first end face extending outward around the core tube port, and the second end of the first core tube has a second end face extending outward around the core tube port;

[0022] The mounting portion is provided on the side of the first end face away from the base, and the micro switch is disposed on the mounting portion;

[0023] or,

[0024] The mounting portion is provided on the side of the second end face near the base, and the micro switch is disposed on the mounting portion.

[0025] Optionally, the height ranging component further includes at least one limiting unit, which is disposed on one side of the mounting portion.

[0026] Optionally, the first end of the spring unit is connected to a power supply, and the second end of the spring unit is directly or indirectly connected to an external load.

[0027] Optionally, the height ranging component further includes a wiring harness, a connecting terminal, and a wiring harness conduit;

[0028] The second end of the telescopic sleeve is further provided with an extension tube on the side away from the base, and the wire harness conduit is disposed in the extension tube.

[0029] The wire harness conduit has a third end face near the base, and a third through hole is provided on the third end face. The connecting terminal is disposed in the third through hole. The second end of the spring unit is electrically connected to the wire harness through the connecting terminal. The wire harness is electrically connected to an external load.

[0030] Optionally, the height ranging component further includes a base housing that provides a receiving space for accommodating the base and the drive unit;

[0031] The base housing has a countersunk hole on its surface, at least part of which is located within the countersunk hole and connected to the base through the countersunk hole.

[0032] Secondly, this utility model provides a floor lamp, including the height measuring component described in any embodiment of this utility model.

[0033] The height measuring component and floor lamp provided in this embodiment of the invention utilize a spring unit installed inside a telescopic core tube. The first end of the spring unit is connected to a pressure sensing unit, and a drive unit and a screw drive the telescopic core tube to extend and retract. During the extension and retraction of the core tube, the spring unit generates a corresponding elastic force along the extension direction. The pressure sensing unit detects the pressure value at this time. Based on the different pressure values ​​corresponding to changes in the height of the telescopic core tube, different heights can be measured and adjusted. The height measuring component provided in this embodiment of the invention has a simpler structure and utilizes changes in pressure to achieve height measurement and adjustment, reducing the influence of external environmental factors, avoiding measurement failures, and improving the accuracy of height adjustment. Attached Figure Description

[0034] Figure 1 This invention provides a schematic cross-sectional view of a height measuring component according to an embodiment of the present invention.

[0035] Figure 2 for Figure 1 A partially enlarged schematic diagram of the height ranging component shown;

[0036] Figure 3 for Figure 1 A magnified view of the structure within the dashed box area;

[0037] Figure 4 for Figure 1A magnified view of the structure of the area within the dashed circle.

[0038] Figure 5 for Figure 4 A structural diagram from another perspective;

[0039] Figure 6 This invention provides a schematic diagram of the initial startup process during a complete reset.

[0040] Figure 7 This invention provides a flowchart illustrating real-time height adjustment in an embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] Figure 1 This invention provides a cross-sectional structural diagram of a height measuring component according to an embodiment of the present invention. Figure 2 for Figure 1 The diagram shows a partially enlarged view of the altitude ranging component. (See attached image.) Figure 1 and Figure 2 ,include:

[0043] Base 110;

[0044] At least one set of telescopic core tubes 120, with the first end of the telescopic core tube 120 connected to the base 110;

[0045] The pressure sensing unit 130 is mounted on the base 110, and the orthographic projection of the telescopic core tube 120 on the base 110 covers the orthographic projection of the pressure sensing unit 130 on the base 110.

[0046] A spring unit 140 is disposed inside the telescopic core tube 120. The natural extension direction of the spring unit 140 is parallel to the telescopic direction of the telescopic core tube 120. The first end of the spring unit 140 is connected to the pressure sensing unit 130. The second end of the spring unit 140 is connected to the second end of the telescopic core tube 120.

[0047] The drive unit 150 is located on the side of the base 110 away from the telescopic core tube 120;

[0048] The screw 160 is disposed on one side of the telescopic core tube 120. The base 110 has a first through hole 111. The first end of the screw 160 is connected to the drive unit 150 through the first through hole 111. The second end of the screw 160 is connected to the second end of the telescopic core tube 120 through a thread 161.

[0049] Specifically, the base 110 provides a mounting structure for the telescopic core tube 120 for fixed installation. For example, the mounting structure can be a groove into which the wall of the telescopic core tube 120 can be inserted to form a connection; alternatively, it can be inserted and then bonded together with adhesive to form a connection. The mounting structure can also be a screw hole, where the telescopic core tube 120 is mounted on the base 110 using screws. The telescopic core tube 120 is a hollow tubular structure that can extend and shorten. For example, the telescopic core tube 120 can consist of at least two connected core tube segments that can move relative to each other, thus providing a telescopic function. The telescopic core tube 120 can be installed perpendicular to the base 110, therefore, the extension and retraction of the telescopic core tube 120 allows for height adjustment.

[0050] The pressure sensing unit 130 is mounted on the base 110. For example, the base 110 can provide a corresponding mounting position; for instance, a mounting groove is provided on the base 110, and the pressure sensing unit 130 can be fixed within the groove. The orthographic projection of the telescopic core tube 120 on the base 110 overlaps with the orthographic projection of the pressure sensing unit 130 on the base 110, meaning the pressure sensing unit 130 is positioned below the telescopic core tube 120. Therefore, when the spring unit 140 is positioned within the telescopic core tube 120, the first end of the spring unit 140 can be connected to the pressure sensing unit 130. The natural extension direction of the spring unit 140 is parallel to the extension / retraction direction of the telescopic core tube 120. Here, the natural extension direction refers to the extension direction of the spring unit 140 in its uncompressed and unextended natural state. The spring unit 140 can maintain its naturally extended state while connecting with the pressure sensing unit 130, preventing bending of the spring unit 140 from affecting the accuracy of the pressure measurement by the pressure sensing unit 130. The telescopic core tube 120 can also limit the spring unit 140, preventing it from bending under tension or compression, and further improving the accuracy of pressure measurement by the pressure sensing unit 130. In some embodiments, multiple sets of telescopic core tubes 120 can be configured according to the number of spring units 140. In this embodiment, for example, two sets of telescopic core tubes 120 are provided, with one spring unit 140 corresponding to each set of core tubes 120, and each spring unit 140 is connected to one pressure sensing unit 130. By setting multiple sets of spring units 140, the accuracy of the data can be improved by using multiple sets of data, and multiple sets of spring units 140 can also improve the uniformity of force during the compression and extension process of the core tube.

[0051] The screw 160 is positioned on the side adjacent to the telescopic core tube 120. The drive unit 150 provides driving force to rotate the screw 160 clockwise or counterclockwise, thereby enabling the screw 160 to drive the telescopic core tube 120 to extend or retract. For example, the drive unit 150 may include a stepper motor 151 and a reduction gear set 152. The screw 160 is connected to the stepper motor 151 via the reduction gear set 152. The stepper motor 151 provides rotational driving force, thereby driving the reduction gear set 152 to rotate, which in turn drives the screw 160 to rotate. Depending on the arrangement direction of the thread 161, the rotation of the screw 160 can drive the telescopic core tube 120 to extend or retract.

[0052] For example, when multiple sets of telescopic core tubes 120 are provided, the multiple sets of telescopic core tubes 120 can be connected, for example, the same end of the telescopic core tubes 120 has an extending end face. It can also be understood that multiple sets of telescopic core tubes 120 extend in the telescopic direction on the same end face, and the space between the multiple sets of telescopic core tubes 120 can accommodate the screw 160. For example, when multiple sets of telescopic core tubes 120 are provided, the telescopic core tubes 120 can be symmetrically distributed about the screw 160, so that the force on each telescopic core tube 120 can be more stable, improving the stability of the telescopic movement.

[0053] When the telescopic core tube 120 is at its longest position, the overall height of the machine is the highest, the compression of the spring unit 140 is the lowest, and the pressure on the pressure sensing unit 130 is the weight and elastic force of the spring unit 140. The total first pressure at this time is F1, and the corresponding height is H1. When the telescopic core tube 120 is at its shortest position, the overall height of the machine is the lowest, the compression of the spring unit 140 is the highest, and the pressure on the pressure sensing unit 130 is the highest. The pressure on the pressure sensing unit 130 is the weight and elastic force of the spring unit 140. The total second pressure at this time is F2, and the corresponding height is H2. Therefore, when the user's required height HA is known, the quantitative relationship between the required lifting height and the pressure value can be obtained, for example: target pressure value FA = (HA - H2)(F2 - F1) / (H1 - H2). The drive unit 150 outputs driving force according to the target pressure value, and adjusts the extension and retraction of the telescopic core tube 120 so that the pressure sensor unit 130 is subjected to the target pressure value, thereby enabling the whole machine to reach the height required by the user.

[0054] The height measuring component provided in this embodiment of the invention uses a spring unit 140 installed inside a telescopic core tube 120. The first end of the spring unit 140 is connected to a pressure sensing unit 130. A drive unit 150 and a screw 160 drive the telescopic core tube 120 to extend and retract. During the extension and retraction of the telescopic core tube 120, the spring unit 140 generates a corresponding elastic force along the extension direction. The pressure sensing unit 130 can detect the pressure value at this time. Based on the different pressure values ​​corresponding to changes in the height of the telescopic core tube 120, different heights can be measured and adjusted. The height measuring component provided in this embodiment of the invention has a simpler structure and utilizes changes in pressure values ​​to achieve height measurement and adjustment, reducing the influence of external environmental factors, avoiding measurement failures, and improving the accuracy of height adjustment.

[0055] Figure 3 for Figure 1 See the enlarged structural diagram of the area within the dashed box. Figure 3 The height measuring component also includes a fixing part 210, which is disposed on one side of the second end wall of the telescopic core tube 120; wherein the fixing part 210 is integrally connected with the telescopic core tube 120. For example, the fixing part 210 can extend outward from the edge of the second end of the telescopic core tube 120 to form the fixing part 210. When multiple sets of telescopic core tubes 120 are provided, the edge extension portions of the telescopic core tubes 120 can be connected to form an integral structure, that is, the side wall extension portions together form the fixing part 210. The fixing part 210 is provided with a through second through hole 211, and the inner wall of the second through hole 211 is provided with a thread 161. The thread 161 in the second through hole 211 is adapted to the thread on the screw 160, and the second end of the screw 160 can pass through the second through hole 211. Therefore, when the screw 160 rotates, under the action of the thread 161, the telescopic core tube 120 can be driven to achieve the telescopic function.

[0056] See also Figure 1 Optionally, the height ranging assembly also includes: a telescopic sleeve 170, a telescopic core tube 120 and a screw 160 disposed within the telescopic sleeve 170;

[0057] The first end of the telescopic sleeve 170 is connected to the first end of the telescopic core tube 120, and the second end of the telescopic sleeve 170 is connected to the second end of the telescopic core tube 120. The telescopic sleeve 170 moves in conjunction with the telescopic core tube 120.

[0058] Specifically, the telescopic sleeve 170 also has a telescopic function. The telescopic core tube 120 and the screw 160 are disposed inside the telescopic sleeve 170 to provide a seal and protect the telescopic core tube 120 and the screw 160. The first end of the telescopic core tube 120 can be connected to the first end of the telescopic sleeve 170, and the telescopic core tube 120 and the telescopic sleeve 170 can be mounted together on the base 110. The second end of the telescopic core tube 120 is connected to the second end of the telescopic sleeve 170. Therefore, when the telescopic core tube 120 is subjected to the force of the screw 160 for telescopic movement, it can drive the telescopic sleeve 170 to move.

[0059] Figure 4 for Figure 1 See the enlarged structural diagram of the area within the dashed circular frame. Figure 4 The telescopic core tube 120 includes: a first core tube 121 and a second core tube 122;

[0060] The first end of the second core tube 122 serves as the first end of the telescopic core tube 120, and is connected to the base 110. The first end of the first core tube 121 is sleeved with the second end of the second core tube 122. Therefore, the first core tube 121 and the second core tube 122 can move relative to each other within a preset distance to achieve a telescopic function. The preset distance can be selected based on the stretchable and compressible amounts of the spring unit 140, and is not specifically limited here. The second end of the first core tube 121 serves as the second end of the telescopic core tube 120. In some embodiments, the inner diameter of the first core tube 121 is larger than the diameter of the second core tube 122, meaning that the second core tube 122 is inserted into the inner diameter of the first core tube 121 to form a sleeve. In this embodiment of the present invention, the inner diameter of the second core tube 122 is larger than the diameter of the first core tube 121, meaning that the first core tube 121 is inserted into the inner diameter of the second core tube 122 to form a sleeve. For example, when multiple sets of telescopic core tubes 120 are provided, multiple sets of first core tubes 121 can be integrally formed, multiple sets of second core tubes 122 can be integrally formed, and the second core tubes 122 are installed on the base 110, which can form multiple sets of sockets to improve assembly efficiency.

[0061] For example, the telescopic sleeve 170 may also include a first sleeve and a second sleeve, which are sleeved together. The first end of the second sleeve serves as the first end of the telescopic sleeve 170, and the second end of the first sleeve serves as the second end of the telescopic sleeve 170. Since the first end of the first sleeve and the second end of the second sleeve are sleeved together, the first sleeve and the second sleeve can move relative to each other within a preset distance to achieve the telescopic function. In some embodiments, the inner diameter of the first sleeve is larger than the diameter of the second sleeve; that is, the second sleeve is inserted into the inner diameter of the first sleeve to form a sleeve connection. In some embodiments, the inner diameter of the second sleeve is larger than the diameter of the first sleeve; that is, the first sleeve is inserted into the inner diameter of the second sleeve to form a sleeve connection.

[0062] Figure 5 for Figure 4 Another perspective on the structural diagram, combined with Figure 4 See Figure 5 The altitude ranging component also includes a mounting part 310 and a micro switch 320. The inner diameter of the second core tube 122 is larger than the diameter of the first core tube 121, meaning the first core tube 121 is inserted into the inner diameter of the second core tube 122 to form a sleeve. The second end of the second core tube 122 has a first end face 330 extending outward around the core tube port. The edge of the first end face 330 can abut against the inner wall of the telescopic sleeve 170, thereby reducing the vibration of the second core tube 122 and increasing its stability during the telescopic movement of the first core tube 121. Similarly, the second end of the first core tube 121 has a second end face (not shown in the figure) extending outward around the core tube port. The edge of the second end face can abut against the inner wall of the telescopic sleeve 170, thereby reducing the vibration of the first core tube 121 and increasing its stability during the telescopic movement of the first core tube 121.

[0063] The first end face 330 and the second end face can provide a certain bearing space. For example, a mounting part 310 can be provided on the side of the first end face 330 away from the base 110. For example, the mounting part 310 can be a mounting boss or a mounting groove, etc., for mounting the micro switch 320. The side of the micro switch 320 away from the base 110 has a trigger lever. When the first core tube 121 descends to the lowest height, the height of the whole machine is at its minimum. The second end face of the first core tube 121 or the fixing part 210 on one side of the first core tube 121 contacts the trigger lever, so the micro switch 320 will send a trigger signal to indicate that the first core tube 121 has reached the lowest position, and the drive unit 150 can stop the drive screw 160 from rotating. At this time, the micro switch 320 is set on the first end face 330. When the first core tube 121 moves in extension and retraction, the position of the micro switch 320 and the control main board is relatively fixed, which is beneficial for setting the corresponding circuit wiring of the micro switch 320.

[0064] In some embodiments, the mounting part 310 may also be located on the side of the second end face near the base 110. When the first core tube 121 descends to the lowest height, the height of the whole machine is at its minimum. The second end face of the second core tube 122 contacts the trigger lever, so that the micro switch 320 will send a trigger signal to indicate that the first core tube 121 has reached the lowest position, and the drive unit 150 can stop the drive screw 160 from rotating.

[0065] In some embodiments, when the second core tube 122 is inserted into the inner diameter of the first core tube 121 to form a sleeve, a second end face extending outward around the core tube port can be provided only at the second end of the first core tube 121, and the mounting part 310 is provided on the side of the second end face near the base 110. Furthermore, a protrusion is provided on the inner wall of the telescopic sleeve 170 corresponding to the position of the micro switch 320 when the first core tube 121 descends to its lowest height. When the first core tube 121 descends to its lowest height, the protrusion will contact the trigger lever, thereby the micro switch 320 will send a trigger signal to indicate that the first core tube 121 has reached its lowest position, and the drive unit 150 can stop the drive screw 160 from rotating.

[0066] Based on the above embodiments, the altitude measuring component further includes at least one limiting unit 340, which is disposed on one side of the mounting portion 310. Figure 4 As shown in the example, the limiting unit 340 is disposed on the second end face and located on one side of the mounting part 310. For example, the limiting unit 340 adopts a limiting post. The limiting post can limit the first core tube 121 to descend to the lowest height and prevent the first core tube 121 from continuing to descend, thereby avoiding excessive relative movement between the first core tube 121 and the second core tube 122.

[0067] Optionally, the first end of the spring unit 140 is connected to a power supply, and the second end of the spring unit 140 is directly or indirectly connected to an external load. That is, the spring unit 140 is made of conductive material, and can be reused as a power supply conductor to supply power to the external load, thus eliminating the need for rewiring within the telescopic sleeve 170 or telescopic core tube 120, saving wiring. Correspondingly, the telescopic core tube 120 can be made of insulating material, providing insulation protection.

[0068] See also Figure 3 Optionally, the height ranging assembly also includes a wiring harness 410, a connecting terminal 420, and a wiring harness conduit 430;

[0069] The second end of the telescopic sleeve 170, on the side away from the base 110, is also provided with an extension tube 171. The extension tube 171 is used to accommodate the wire harness conduit 430, which provides space for the wire harness 410 to run. The wire harness conduit 430 has a third end face 431 on the side near the base 110. That is, the wire harness conduit 430 has a third end face 431 adjacent to the second end of the first core tube 121. The third end face 431 can be provided with screw holes for fixing the second end of the first core tube 121. The third end face 431 can isolate the internal space of the first core tube 121 and can also provide insulation protection when the spring unit 140 is reused as a power conductor. A third through hole 432 is provided on the third end face 431, and a connecting terminal 420 is disposed in the third through hole 432. The second end of the spring unit 140 is electrically connected to the wire harness 410 through the connecting terminal 420, and the wire harness 410 is electrically connected to an external load. In other words, when the spring unit 140 is reused as a power supply conductor, the wiring harness 410 can be used to extend the wiring, facilitating connection with the circuit wiring of external loads. Furthermore, to prevent the screw 160 from affecting the wiring harness 410 when it enters the wiring harness conduit 430, a screw channel 440 can be provided in the wiring harness conduit 430 in the extension direction of the screw 160, and the sidewall of the screw channel 440 can be used to isolate the screw 160 and the wiring harness 410.

[0070] Optionally, the altitude ranging assembly also includes a base housing 510, which provides a receiving space for accommodating the base 110 and the drive unit 150;

[0071] The base housing 510 has a countersunk hole 511 on its surface, at least part of the telescopic core tube 120 is located in the countersunk hole 511 and is connected to the base 110 through the countersunk hole 511.

[0072] Specifically, the base housing 510 is used to house components such as the base 110, the drive unit 150, and the circuit board for control. For example, the base housing 510 can be cylindrical, with the area of ​​the lower surface being larger than the area of ​​the upper surface, thereby providing better stability. A countersunk hole 511 is provided on the upper surface of the base housing 510. At least part of the telescopic sleeve 170 and the telescopic core tube 120 are connected to the base 110 inside the base housing 510 through the countersunk hole 511. The sidewall of the countersunk hole 511 can provide lateral support for the telescopic sleeve 170 and the telescopic core tube 120, avoiding excessive lateral stress on the telescopic sleeve 170 and the telescopic core tube 120, which could cause breakage.

[0073] Based on the above embodiments, taking the example of a micro switch 320 being installed on the first end face 330 of the second core tube 122, and the drive unit 150 including a stepper motor 151 and a reduction gear set 152, the initial zeroing start-up and height adjustment process of the height ranging component will be explained:

[0074] For example, stepper motor 151 rotates clockwise, causing the first core tube 121 to shorten relative to the second core tube 122, and stepper motor 151 rotates counterclockwise, causing the first core tube 121 to extend relative to the second core tube 122.

[0075] Figure 6 This invention provides a flowchart illustrating the initial reset and startup process in an embodiment of the present invention. (See attached diagram.) Figure 6 During the initial zeroing and startup, S1, stepper motor 151 rotates clockwise; S2, when the first core tube 121 descends to its lowest height, the overall height of the machine is at its minimum, and micro switch 320 is triggered to send a trigger signal to indicate that the first core tube 121 has reached its lowest position; S3, stepper motor 151 can stop for time t1; S4, at this time the overall height of the machine is at its minimum, corresponding to height H2, and pressure sensing unit 130 detects the second pressure F2;

[0076] S5. Stepper motor 151 rotates counterclockwise; S6. When the first core tube 121 rises to its highest height, the overall height of the machine is at its maximum. The first core tube 121 is stopped, and the motor experiences resistance, causing the current to increase. By detecting the current of stepper motor 151, if the current of stepper motor 151 is greater than the preset value, S7. Stepper motor 151 can stop for time t2; S8. At this time, the overall height of the machine is at its highest, corresponding to H1. The pressure sensing unit 130 detects the first pressure F1; S9. The user inputs the required height HA, and the microcontroller unit can calculate the quantitative relationship between the required lifting height and the pressure value, for example: target pressure value FA = (HA-H2)(F2-F1) / (H1-H2). S10. Stepper motor 151 rotates clockwise or counterclockwise until the pressure sensing unit 130 detects the target pressure value FA.

[0077] Figure 7 This invention provides a flowchart illustrating real-time height adjustment in an embodiment of the present invention. (See attached diagram.) Figure 7 During real-time height adjustment, S11, the user can input the required height HB, S12, based on the quantitative relationship between height and pressure value, the target pressure value is obtained, and the stepper motor 151 rotates clockwise or counterclockwise until the pressure sensing unit 130 detects the target pressure value FB=(HB-H2)(F2-F1) / (H1-H2).

[0078] This utility model embodiment also provides a floor lamp, including a height measuring component according to any embodiment of this utility model. The lighting load of the floor lamp can be directly connected to the power supply via the wiring harness 410, or, when the spring unit 140 is reused as a power conductor, the lighting load of the floor lamp can be connected to the spring unit 140 via the wiring harness 410, thus connecting the lighting load to the power supply. The floor lamp provided in this utility model embodiment has the same beneficial effects because it includes the height measuring component according to any embodiment of this utility model, and will not be described in detail here.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A height ranging component, characterized in that, include: Base; At least one set of telescopic core tubes, the first end of which is connected to the base; A pressure sensing unit is mounted on the base, and the orthographic projection of the telescopic core tube on the base covers the orthographic projection of the pressure sensing unit on the base. A spring unit is disposed inside the telescopic core tube. The natural extension direction of the spring unit is parallel to the telescopic direction of the telescopic core tube. The first end of the spring unit is connected to the pressure sensing unit, and the second end of the spring unit is connected to the second end of the telescopic core tube. The drive unit is located on the side of the base away from the telescopic core tube; A screw is disposed on one side of the telescopic core tube. The base has a first through hole. The first end of the screw is connected to the drive unit through the first through hole. The second end of the screw is connected to the second end of the telescopic core tube by a thread.

2. The altitude ranging component according to claim 1, characterized in that, Also includes: A fixing part is provided on one side of the second end wall of the telescopic core tube; The fixing part is integrally connected to the telescopic core tube. The fixing part has a second through hole, and the inner wall of the second through hole has a thread that is adapted to the screw. The second end of the screw passes through the second through hole.

3. The altitude ranging component according to any one of claims 1-2, characterized in that, Also includes: A telescopic sleeve, wherein the telescopic core tube and the screw are disposed inside the telescopic sleeve; The first end of the telescopic sleeve is connected to the first end of the telescopic core tube, and the second end of the telescopic sleeve is connected to the second end of the telescopic core tube. The telescopic sleeve moves in conjunction with the telescopic core tube.

4. The altitude ranging component according to claim 3, characterized in that, The telescopic core tube includes: a first core tube and a second core tube; The first end of the second core tube serves as the first end of the telescopic core tube, and the first end of the second core tube is connected to the base; the first end of the first core tube and the second end of the second core tube are sleeved together; the first core tube and the second core tube can move relative to each other within a preset distance; the second end of the first core tube serves as the second end of the telescopic core tube. The inner diameter of the first core tube is greater than the diameter of the second core tube, or the inner diameter of the second core tube is greater than the diameter of the first core tube.

5. The altitude ranging component according to claim 4, characterized in that, It also includes: a mounting section and a micro switch; wherein the inner diameter of the second core tube is larger than the diameter of the first core tube; The second end of the second core tube has a first end face extending outward around the core tube port, and the second end of the first core tube has a second end face extending outward around the core tube port; The mounting portion is provided on the side of the first end face away from the base, and the micro switch is disposed on the mounting portion; or, The mounting portion is provided on the side of the second end face near the base, and the micro switch is disposed on the mounting portion.

6. The altitude ranging component according to claim 5, characterized in that, It also includes at least one limiting unit, which is disposed on one side of the mounting portion.

7. The altitude ranging component according to claim 3, characterized in that, The first end of the spring unit is connected to a power supply, and the second end of the spring unit is directly or indirectly connected to an external load.

8. The altitude ranging component according to claim 7, characterized in that, It also includes wire harnesses, connecting terminals, and wire harness conduits; The second end of the telescopic sleeve is further provided with an extension tube on the side away from the base, and the wire harness conduit is disposed in the extension tube. The wire harness conduit has a third end face near the base, and a third through hole is provided on the third end face. The connecting terminal is disposed in the third through hole. The second end of the spring unit is electrically connected to the wire harness through the connecting terminal. The wire harness is electrically connected to an external load.

9. The altitude ranging component according to claim 8, characterized in that, It also includes a base housing that provides a receiving space for accommodating the base and the drive unit; The base housing has a countersunk hole on its surface, at least part of which is located within the countersunk hole and connected to the base through the countersunk hole.

10. A floor lamp, characterized in that, Includes the altitude ranging component as described in any one of claims 1-9.

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