Intelligent ladder

Abstract

The utility model relates to an intelligent ladder. The intelligent ladder comprises a ladder frame, a connecting piece, a supporting piece and a pressure sensor, ladder feet are arranged at the bottom of the ladder frame, the connecting pieces are arranged on the ladder feet, connecting bosses are arranged on the connecting pieces, and the supporting pieces are used for abutting against the ground. The pressure sensor comprises a first contact part, a second contact part and a deformation part, the first contact part and the second contact part are connected through the deformation part, the connecting boss is connected with or abuts against the first contact part, the supporting piece is connected with or abuts against the second contact part, and the connecting boss can drive the first contact part to move relative to the second contact part under the action of external force. Therefore, the deformation part is deformed.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and more particularly to intelligent ladders. Background Technology

[0002] Ladders are primarily used to provide access to higher places. However, each ladder has its own load-bearing limit. If the weight a ladder bears exceeds its load limit during use, it can easily become damaged or collapse, potentially causing serious injury to the user and others nearby.

[0003] The ladders in the relevant technology cannot accurately show users their current load capacity. When users climb the ladder with a load, there may be a discrepancy between the actual load capacity of the ladder and the load capacity data displayed by the ladder, which may pose a safety risk. Utility Model Content

[0004] In view of this, the present invention provides an intelligent ladder to solve the problem of insufficient detection accuracy in the prior art.

[0005] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes:

[0006] Smart ladders include:

[0007] The ladder frame has feet at the bottom.

[0008] A connector is provided on the ladder foot and has a connecting boss.

[0009] Support components, used to abut against the ground;

[0010] The pressure sensor includes a first contact portion, a second contact portion, and a deformation portion. The first contact portion and the second contact portion are connected through the deformation portion. A connecting boss is connected to or abuts against the first contact portion, and a support member is connected to or abuts against the second contact portion. The connecting boss can drive the first contact portion to move relative to the second contact portion under the action of external force, so as to cause the deformation portion to deform.

[0011] In some embodiments, the projections of the first contact portion and the second contact portion in the vertical direction do not intersect.

[0012] In some embodiments, the first contact portion is disposed around the second contact portion, or the second contact portion is disposed around the first contact portion.

[0013] In some embodiments, a buffer space is provided on the connector, and the second contact portion can move within the buffer space.

[0014] In some embodiments, the first contact portion is disposed around the second contact portion;

[0015] The connector is provided with a receiving cavity for accommodating the pressure sensor, a connecting post is provided inside the receiving cavity, and a connecting boss is provided on the connecting post.

[0016] The connecting column is hollow to form a buffer space, and a through groove is also provided on the connecting column to connect the buffer space and the receiving cavity. The deformable part passes through the through groove.

[0017] In some embodiments, the connecting post is provided with a first annular limiting edge surrounding the first contact portion.

[0018] In some embodiments, the pressure sensor is located between the connector and the support, such that the connecting boss connects to or abuts against the upper surface of the first contact portion, and the support connects to or abuts against the lower surface of the second contact portion.

[0019] In some embodiments, the connector includes a connecting body and a first snap-fit ​​structure formed on the connecting body, a connecting boss formed on the connecting body, and the first snap-fit ​​structure and the connecting boss together clamp a first contact portion.

[0020] In some embodiments, the first snap-fit ​​structure includes a first connecting arm and a first fastening portion formed on the first connecting arm. The first connecting arm is connected to the connecting body. The first fastening portion has a first snap-fit ​​surface. A first contact portion is located between the first snap-fit ​​surface and the connecting boss. The distance from the first snap-fit ​​surface to the connecting boss is greater than or equal to the thickness of the first contact portion.

[0021] In some embodiments, the number of first snap-fit ​​structures is at least two, and the at least two first snap-fit ​​structures are arranged opposite each other with respect to the deformable portion.

[0022] In some embodiments, the support includes a support body and a second snap-fit ​​structure formed on the support body, wherein the support body and the second snap-fit ​​structure together clamp the second contact portion.

[0023] In some embodiments, the second snap-fit ​​structure includes a second connecting arm and a second fastening portion formed on the second connecting arm. The second connecting arm is connected to the support body. The second fastening portion has a second snap-fit ​​surface. A second contact portion is located between the second snap-fit ​​surface and the support body, and the distance from the second snap-fit ​​surface to the support body is greater than or equal to the thickness of the second contact portion.

[0024] In some embodiments, the number of second snap-fit ​​structures is at least two, and the at least two second snap-fit ​​structures are arranged opposite each other with respect to the deformable portion.

[0025] In some embodiments, the support body is further provided with a second annular limiting edge surrounding the second contact portion.

[0026] In some embodiments, the support member is fixedly connected to the second contact portion by bolts.

[0027] In some embodiments, the connector is detachably mounted on the ladder foot.

[0028] In some embodiments, the connector and the ladder legs are integrally formed.

[0029] In some embodiments, the smart ladder further includes a shield connected to a connector or ladder leg, the shield cooperating with the connector or ladder leg to jointly surround the pressure sensor, and the shield having a through opening for a support member to pass through.

[0030] In some embodiments, the smart ladder also includes an early warning module mounted on the ladder frame and electrically connected to a pressure sensor.

[0031] In some embodiments, a handrail is provided at the top of the ladder frame, and a warning module is installed on the handrail.

[0032] In some embodiments, the warning module is electrically connected to the pressure sensor via a wire. The inside of the ladder frame is hollow, forming a wire passage that extends to the foot of the ladder. The wires are distributed within the wire passage.

[0033] In some embodiments, the ladder frame includes at least two support rods and a tread connecting the at least two support rods, the bottom of the support rods forming ladder feet, and the tread having anti-slip textures.

[0034] Implementing the embodiments of this utility model will have the following beneficial effects:

[0035] After adopting the above-mentioned intelligent ladder, the support component makes hard contact with the ground, so that the first contact part and the second contact part are staggered and connected through the deformation part. This allows the pressure transmitted from the ladder feet to the pressure sensor to be fully reflected in the deformation of the deformation part, thereby improving the detection accuracy of the pressure sensor. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of one embodiment.

[0038] Figure 2 This is a schematic diagram of the connector, support, and cover installed at the foot of the ladder in one embodiment;

[0039] Figure 3An exploded assembly diagram of the structure installed at the foot of a ladder, according to one embodiment;

[0040] Figure 4 This is a schematic diagram of a connector structure according to one embodiment;

[0041] Figure 5 This is a schematic diagram illustrating the installation of a connector and a pressure sensor according to one embodiment.

[0042] Figure 6 This is a schematic cross-sectional view of a portion of the structure at the foot of a ladder in one embodiment;

[0043] Figure 7 This is a schematic diagram of the mounting structure of the connector, support, and pressure sensor in one embodiment;

[0044] Figure 8 This is a schematic cross-sectional view of a connector according to one embodiment;

[0045] Figure 9 This is a schematic diagram of a pressure sensor mounted on a support in one embodiment;

[0046] Figure 10 This is a schematic diagram of the assembly structure of a pressure sensor and a support member according to one embodiment;

[0047] Figure 11 This is a schematic cross-sectional view of a support member according to one embodiment;

[0048] in:

[0049] 1-Ladder frame; 11-Ladder feet; 12-Handrail; 13-Support rod; 14-Step; 130-Cable passage;

[0050] 2-Connector; 21-Connecting boss; 22-Connecting post; 23-Connecting body; 24-First snap-fit ​​structure; 201-Receiving cavity; 202-Buffer space; 203-Through groove; 221-First annular limiting edge; 241-First connecting arm; 242-First fastening part; 2421-First snap-fit ​​surface;

[0051] 3-Support component; 31-Support body; 32-Second buckle structure; 311-Second annular limiting edge; 312-Abutting post; 321-Second connecting arm; 322-Second fastening part; 3221-Second snap-fit ​​surface;

[0052] 4-Pressure sensor; 41-First contact portion; 42-Second contact portion; 43-Deformation portion; 411-Upper surface of the first contact portion; 412-Lower surface of the first contact portion; 421-Upper surface of the second contact portion; 422-Lower surface of the second contact portion;

[0053] 5-Shielding component; 51-Exposed opening;

[0054] 6-Early warning module;

[0055] 7-Wire;

[0056] 8-Outer shell. Detailed Implementation

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0058] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0060] See appendix Figures 1 to 11 This utility model proposes an intelligent ladder, including a ladder frame 1, a connector 2, a pressure sensor 4, and a support 3. The bottom of the ladder frame 1 is provided with ladder feet 11, and the connector 2 is installed on the ladder feet 11.

[0061] The pressure sensor 4 includes a first contact portion 41, a second contact portion 42, and a deformation portion 43. The first contact portion 41 and the second contact portion 42 are connected through the deformation portion 43. The first contact portion 41 is configured to move relative to the second contact portion 42 under the action of an external force, so that the deformation portion 43 deforms. The deformation of the deformation portion 43 generates a corresponding electrical signal, and the load-bearing capacity of the ladder frame 1 can be detected by identifying this electrical signal.

[0062] Specifically, a connecting boss 21 is provided on the connector 2, which is connected to or abuts against the first contact portion 41. The support member 3 is connected to or abuts against the second contact portion 42, and the support member 3 is used to rest against the ground. When the ladder frame 1 is under load, the ladder foot 11 presses down, and the connector 2 and the corresponding connecting boss 21 installed on the ladder foot 11 press down synchronously. Because the support member 3 rests against the ground, the second contact portion 42 and the support member 3 are relatively fixed, so the two can be regarded as one unit, that is, the second contact portion 42 does not move. This drives the first contact portion 41 to move relative to the second contact portion 42, and the deformation portion 43 deforms.

[0063] Therefore, the intelligent ladder makes hard contact with the ground through the support member 3, so that the first contact part 41 and the second contact part 42 are staggered and connected by the deformation part 43. When the ladder frame 1 bears weight, the weight borne by the ladder frame 1 is transmitted to the pressure sensor 4 through the ladder feet 11 and is fully reflected in the degree of deformation of the deformation part 43, thereby improving the detection accuracy of the pressure sensor 4.

[0064] To further improve detection accuracy, in some embodiments, the projections of the first contact portion 41 and the second contact portion 42 in the vertical direction do not intersect each other; that is, the support member 3 is not connected to the first contact portion 41, and the connector 2 is not connected to the second contact portion 42. Therefore, when the first contact portion 41 and the second contact portion 42 move relative to each other, the deformation generated by the pressure sensor 4 is basically concentrated on the deformation portion 43.

[0065] Furthermore, at least two ladder feet 11 are provided, and at least one connector 2, pressure sensor 4, and support 3 are each provided. By combining one connector 2, one pressure sensor 4, and one support 3 and installing them on one of the ladder feet 11, the load-bearing capacity of the ladder frame 1 can be detected. To prevent localized stress on the ladder frame 1 from affecting the overall detection accuracy, the number of connectors 2, pressure sensors 4, and support 3 is set to correspond to the number of ladder feet 11, so that a pressure sensor 4 is provided at each ladder foot 11. The final load-bearing capacity of the ladder frame 1 is obtained by analyzing the detection results of all pressure sensors 4.

[0066] In some embodiments, the thickness of the pressure sensor 4 can be set to 2mm-5mm, that is, the thickness of the first contact portion 41, the second contact portion 42, and the deformation portion 43 are all between 2mm and 5mm, for example, 4mm, 3.5mm, 3mm, or 2.5mm. The thicknesses of the first contact portion 41, the second contact portion 42, and the deformation portion 43 can be the same or different. For example, the thickness of the first contact portion 41, the second contact portion 42, and the deformation portion 43 is all set to 3mm.

[0067] In some embodiments, as shown in the appendix Figure 1As shown, this smart ladder is a foldable ladder, allowing the ladder frame 1 to be folded or unfolded. When unfolded, the ladder frame 1 has four feet 11, each equipped with a pressure sensor 4 and a support member 3. The ladder frame 1 includes four support rods 13 and several steps 14. The bottom of each support rod 13 forms a foot 11. Two support rods 13 constitute the main frame, and the other two form the secondary frame, which is hinged to the main frame. Folding or unfolding the smart ladder is achieved primarily by rotating the secondary frame. The steps 14 are connected to the two support rods 13 forming the main frame. The steps 14 have anti-slip textures for greater stability when standing on them. The two support rods forming the secondary frame are interconnected and fixed by at least one stabilizing rod; for example, two stabilizing rods can be used to connect the two support rods, strengthening the structural integrity. Furthermore, two additional stabilizer bars can be installed to connect the two support bars that make up the subframe. These two additional stabilizer bars are distributed in a cross shape to form an "X", which further strengthens the structural strength of the subframe.

[0068] See appendix Figure 3 , 5 In some embodiments, the pressure sensor 4 is located between the connector 2 and the support 3, such that the connecting boss 21 and the support 3 respectively contact two opposing surfaces of the pressure sensor 4. For example, the connecting boss 21 abuts against the upper surface 411 of the first contact portion 41, and the support 3 is fixed to the lower surface 422 of the second contact portion 42 by bolts. Another example is that the connecting boss 21 is fixed to the lower surface 412 of the first contact portion 41 by bolts, while the support 3 is partially located on the upper surface 421 of the second contact portion 42 and fixed by bolts.

[0069] Understandably, in other embodiments, the connecting boss 21 and the support member 3 may simultaneously contact the same side surface of the pressure sensor 4. For example, the connecting boss 21 may abut against the upper surface 411 of the first contact portion 41, and the support member 3 may be partially located on the upper surface 421 of the second contact portion 42 and fixed by bolts. This embodiment is not shown in the accompanying drawings.

[0070] Based on the above embodiments, it can be seen that regardless of whether the connecting boss 21 contacts the upper surface 411 or the lower surface 412 of the first contact portion 41, the first contact portion 41 and the connecting boss 21 should move synchronously. Similarly, regardless of whether the support member 3 contacts the upper surface 421 or the lower surface 422 of the second contact portion 42, the second contact portion 42 and the support member 3 should move synchronously.

[0071] In some embodiments, as shown in the appendix Figure 9As shown, the first contact portion 41 is arranged around the second contact portion 42, that is, the first contact portion 41 is annular and the second contact portion 42 is disposed within its ring, corresponding to the annular distribution of the connecting bosses 21. It can be understood that in other embodiments, the second contact portion 42 is arranged around the first contact portion 41, that is, the second contact portion 42 is annular and the first contact portion 41 is disposed within its ring, corresponding to the annular arrangement of the support member 3. These other embodiments are not shown in the accompanying drawings. It should be noted that the annular shape described in the above two embodiments can be either an open ring or a closed ring.

[0072] The following description is based on an embodiment in which the connecting boss 21 abuts against the upper surface 411 of the first contact portion 41, the support member 3 is connected to the lower surface 422 of the second contact portion 42, and the first contact portion 41 is arranged around the second contact portion 42.

[0073] Further, see appendix. Figure 3 , 4 6, 9. A buffer space 202 is provided on the connector 2, and the second contact part 42 can move in the buffer space 202. That is, when the first contact part 41 is pressed down relative to the second contact part 42, the second contact part 42 can enter the buffer space 202. The buffer space 202 is provided to prevent the connector 2 from making direct contact with the second contact part 42 and affecting the accuracy of the detection results.

[0074] Specifically, the connector 2 is provided with a receiving cavity 201 for accommodating the pressure sensor 4, which protects the pressure sensor 4. A connecting post 22 is disposed within the receiving cavity 201, and the connecting post 22 is hollow to form the aforementioned buffer space 202 within it. Correspondingly, connecting bosses 21 are disposed around the inner wall of the connecting post 22, and the connecting bosses 21 can be distributed in a ring on the inner wall of the connecting post 22. In other embodiments, the connecting bosses 21 can also be multiple unconnected bosses surrounding the inner wall of the connecting post 22, and the multiple connecting bosses 21 can abut against different parts of the upper surface 411 of the first contact portion 41.

[0075] In addition, a through groove 203 is provided on the connecting column 22 to connect the buffer space 202 and the receiving cavity 201, as shown in the attached figure. Figure 4 and 6 As shown, the through groove 203 also passes through the annular connecting boss 21. The through groove 203 is used for the deformable part 43 to pass through, providing space for the deformable part 43 to deform, thereby preventing the connector 2 from interfering with the deformation of the deformable part 43.

[0076] Understandably, in other embodiments, the connecting boss 21 may abut against the upper surface 411 of the first contact portion 41, the support member 3 may be connected to the lower surface 422 of the second contact portion 42, and the second contact portion may surround the first contact portion. In this other embodiment, the connector may provide a buffer space around the connecting boss, that is, the connecting boss may be located in the middle of the buffer space. The buffer space provides room for movement of the second contact portion, so that the connector will not interfere with the movement of the second contact portion. Correspondingly, an additional buffer space may be provided on the support member, which provides room for movement of the first contact portion, so that the support member will not interfere with the movement of the first contact portion.

[0077] Further, see appendix. Figures 3 to 5 The connecting post 22 is provided with a first annular limiting edge 221 surrounding the first contact part 41. The first annular limiting edge 221 is used to position the first contact part 41, so that the pressure sensor 4 can be correctly installed on the connector 2, and the first contact part 41 and the connecting boss 21 can be in correct contact.

[0078] Regarding the connection structure between pressure sensor 4 and connector 2, a detachable design can be adopted, primarily for convenient maintenance or replacement of pressure sensor 4. (See appendix) Figures 3 to 8 For example, in some embodiments, the connector 2 includes a connecting body 23 and a first snap-fit ​​structure 24 formed on the connecting body 23. The connecting boss 21 and the first snap-fit ​​structure 24 are both formed on the connecting post 22, and the first contact portion 41 is clamped by the first snap-fit ​​structure 24 and the connecting boss 21.

[0079] Specifically, the first snap-fit ​​structure 24 includes a first connecting arm 241 and a first engaging portion 242 formed on the first connecting arm 241. The first connecting arm 241, the first engaging portion 242, and the connecting body 23 are integrally formed. The first engaging portion 242 has a first engaging surface 2421, and a first contact portion 41 is located between the first engaging surface 2421 and the connecting boss 21. The distance D1 from the first engaging surface 2421 to the connecting boss 21 is greater than or equal to the thickness H1 of the first contact portion 41, as shown in the attached figure. Figure 8 As shown in the attached diagram, the distance D1 is... Figure 10 As shown. Correspondingly, the connecting boss 21 abuts against the upper surface 411 of the first contact portion 41, and the first snap-fit ​​surface 2421 abuts against the lower surface 412 of the first contact portion 41, thereby locking the first contact portion 41 and the connector 2 relative to each other in the vertical direction. The first snap-fit ​​structure 24, in conjunction with the first annular limiting edge 221, can prevent the first contact portion 41 from detaching from the connector 2. Specifically, the first connecting arm 241 can be a cantilever structure connected to the connecting body 23. This cantilever structure can undergo elastic deformation under external force, facilitating the installation of the first contact portion 41.

[0080] To ensure a more balanced installation between the pressure sensor 4 and the connector 2, at least two first snap-fit ​​structures 24 are provided, and these at least two first snap-fit ​​structures 24 are arranged opposite each other with respect to the deformable part 43. They can be symmetrical or asymmetrical. For example, see attached... Figure 4 and 5 As shown, two first snap-fit ​​structures 24 are provided, and the two first snap-fit ​​structures 24 are mirror-symmetrical about the deformable part 43 or its extension. Alternatively, three first snap-fit ​​structures 24 are provided, with two of them mirror-symmetrical about the deformable part 43, and the remaining first snap-fit ​​structure 24 snaps onto the side of the first contact part 41 opposite to the deformable part 43 (not shown in the figure). It is understood that when multiple first snap-fit ​​structures 24 are provided around the first contact part 41, the first annular limiting edge 221 is not required; in this case, the multiple first connecting arms 241 will collectively achieve the function of the first annular limiting edge 221.

[0081] Of course, a fixed connection structure can also be used between the pressure sensor 4 and the connector 2. For example, in other embodiments, the first contact part 41 is fixed to the connecting boss 21 by bolts or glue.

[0082] Regarding the connection structure between the support member 3 and the pressure sensor 4, in some embodiments, see the appendix. Figures 9 to 11 The support member 3 includes a support body 31 and a second snap-fit ​​structure 32 formed on the support body 31. The support body 31 and the second snap-fit ​​structure 32 together clamp the second contact portion 42.

[0083] Specifically, the second latching structure 32 includes a second connecting arm 321 and a second fastening portion 322 formed on the second connecting arm 321. The second connecting arm 321, the second fastening portion 322, and the support body 31 are integrally formed. The second fastening portion 322 has a second engaging surface 3221, and a second contact portion 42 is located between the second engaging surface 3221 and the support body 31. The distance D2 from the second engaging surface 3221 to the support body 31 is greater than or equal to the thickness H2 of the second contact portion 42, as shown in the attached figure. Figure 10 As shown in the attached diagram, the distance D2 is... Figure 11As shown. Correspondingly, the support body 31 abuts against the lower surface 422 of the second contact portion 42, and the second snap-fit ​​surface 3221 abuts against the upper surface 421 of the second contact portion 42, thereby locking the second contact portion 42 and the connector 2 relative to each other in the vertical direction. Simultaneously, a second annular limiting edge 311 can be provided on the support body 31, surrounding the second contact portion 42. The second annular limiting edge 311 is used to position the second contact portion 42, facilitating the correct installation of the pressure sensor 4 onto the support member 3. The cooperation of the second snap-fit ​​structure 32 and the second annular limiting edge 311 prevents the second contact portion 42 from detaching from the support member 3. Specifically, the second connecting arm 321 can be a cantilever structure connected to the support body 31. This cantilever structure can undergo elastic deformation under external force, facilitating the installation of the second contact portion 321.

[0084] To ensure a more balanced installation between the pressure sensor 4 and the support member 3, at least two second snap-fit ​​structures 32 are provided, and these at least two second snap-fit ​​structures 32 are arranged opposite to the deformable part 43. The positional distribution of these second snap-fit ​​structures 32 can be set with reference to the positional distribution of the first snap-fit ​​structure 24 described above. It is understood that when multiple second snap-fit ​​structures 32 are provided around the second contact part 42, it is not necessary to provide a second annular limiting edge 311, in which case the multiple second connecting arms 321 will jointly achieve the function of the second annular limiting edge 311.

[0085] Furthermore, the second snap-fit ​​structure 32 is disposed in the gap between the first contact portion 41 and the second contact portion 42. The thickness of the second snap-fit ​​structure 32 is less than the width of the gap, so as to avoid the second snap-fit ​​structure 32 interfering with the mutual movement between the first contact portion 41 and the second contact portion 42 and affecting the detection accuracy of the pressure sensor 4.

[0086] Based on the second snap-fit ​​structure 32, the second contact part 42 can also be locked to the support body 31 using bolts or glue. That is, an abutment post 312 can be provided on the support body 31, as shown in the attached figure. Figure 10 and 11 As shown, the second contact part 42 abuts against the abutment post 312, and the bolt penetrates the second contact part 42 and is threadedly connected to the abutment post 312. Therefore, the aforementioned distance D2 is actually the distance from the second snap-fit ​​surface 3221 to the abutment post 312.

[0087] In other embodiments, the second snap-fit ​​structure 32 and the second annular limiting edge 311 may be omitted, and the second contact part 42 may be directly fixed to the support member 3 using bolts.

[0088] In some embodiments, the connector 2 is detachably installed on the ladder leg 11, for example, by bolting, snap-fitting, or adhesive bonding, or it is cylindrical and directly sleeved on the ladder leg 11. The purpose is also to facilitate maintenance and replacement of old parts. Of course, in other embodiments, the connector 2 and the ladder leg 11 can be integrally formed, that is, the connecting boss 21 is directly formed on the ladder leg 11, and the pressure sensor 4 can be installed on the ladder leg 11, saving installation steps.

[0089] In some embodiments, the smart ladder further includes a housing 8, which is fitted onto the ladder legs 11, and a connector 2 is connected to the housing 8. Preferably, the connector 2 and the housing 8 are integrally formed, specifically made of plastic. In another embodiment, the connector 2 is detachably connected to the housing 8, and the connector 2 is indirectly connected to the ladder legs 11 through the housing 8, specifically by fixing the connector 2 to the bottom surface of the housing 8 with bolts.

[0090] In some embodiments, as shown in the appendix Figure 2 and 3 As shown, the smart ladder also includes a shielding member 5, which is connected to the connector 2 or the ladder foot 11. The shielding member 5 cooperates with the connector 2 or the ladder foot 11 to jointly surround the pressure sensor 4. The shielding member 5 has a through-hole 51, allowing the support member 3 to extend to the outside from the through-hole 51. For example, in one embodiment, the connector 2 has a receiving cavity 201 inside for accommodating the pressure sensor 4. The bottom of the receiving cavity 201 is through-hole to form an opening, and the shielding member 5 is installed on the connector 2 and covers the opening. The support member 3 extends from the through-hole 51 to below the shielding member 5.

[0091] The shield 5 serves a protective function, such as preventing the pressure sensor 4 from being exposed to the outside; additionally, the shield 5 serves an aesthetic purpose. The shield 5 is equivalent to an extension of the ladder leg 11 or the connector 2, and its weight is still borne solely by the support member 3.

[0092] In some embodiments, see Appendix Figure 1 The smart ladder also includes an early warning module 6, which is installed on the ladder frame 1 and electrically connected to the pressure sensor 4. The early warning module 6 includes a display unit, a buzzer unit, a light-emitting unit, and a voice unit, which can be used to present the load-bearing information of the ladder frame 1 to the user and to issue an alarm when the load-bearing capacity of the ladder frame 1 exceeds a preset warning value. Of course, the display unit can also display other information, such as time, temperature, and humidity.

[0093] Regarding the warning function of the warning module 6, it can specifically include changes in the sound of the buzzer unit, changes in the light of the light-emitting unit, or voice prompts. The buzzer unit does not operate when the load-bearing capacity of the ladder frame 1 is within a safe range. Different buzzer sounds can be set for two different situations: when the load-bearing capacity of the ladder frame 1 is close to the preset warning value and when it exceeds the preset warning value.

[0094] Similarly, the light-emitting unit does not emit light when the load-bearing capacity of the ladder frame 1 is within a safe range. Different lights can be set for two different situations: when the load-bearing capacity of the ladder frame 1 is close to the preset warning value and when it exceeds the preset warning value, so as to remind users to pay attention to safety in real time.

[0095] The voice unit can set different voice prompts for two different situations: when the load-bearing capacity of the ladder frame 1 is close to the preset warning value and when it exceeds the preset warning value.

[0096] In addition, a handrail 12 is provided at the top of the ladder frame 1, which users can use to carry the smart ladder or to stabilize their body while climbing it. Preferably, the warning module 6 is installed at the handrail 12, and the height of the ladder frame 1 is set to 1.5 meters to 2.5 meters. Therefore, when users climb the smart ladder, it is easier for them to see the content on the display unit.

[0097] In some embodiments, as shown in the appendix Figure 6 As shown, the warning module 6 is electrically connected to the pressure sensor 4 via wires 7. The interior of the ladder frame 1 is hollow, forming a wire passage 130 that extends to the ladder foot 11. The wires 7 are distributed within the wire passage 130. Furthermore, the wires 7 also connect to the pressure sensor 4 after passing through the connector 2. The wire passage 130 houses the wires 7 primarily for aesthetic purposes, preventing them from being exposed.

[0098] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A smart ladder, characterized in that, include: A ladder frame (1), wherein the bottom of the ladder frame (1) is provided with ladder feet (11); Connector (2), the connector (2) is disposed on the ladder foot (11), and the connector (2) is provided with a connecting boss (21); Support member (3), the support member (3) is used to abut against the ground; The pressure sensor (4) includes a first contact portion (41), a second contact portion (42), and a deformation portion (43). The first contact portion (41) and the second contact portion (42) are connected through the deformation portion (43). The connecting boss (21) is connected to or abuts against the first contact portion (41). The support member (3) is connected to or abuts against the second contact portion (42). The connecting boss (21) can drive the first contact portion (41) to move relative to the second contact portion (42) under the action of external force, so that the deformation portion (43) deforms.

2. The smart ladder of claim 1, wherein, The projections of the first contact portion (41) and the second contact portion (42) in the vertical direction do not intersect each other.

3. The smart ladder of claim 1, wherein, The first contact portion (41) is disposed around the second contact portion (42), or the second contact portion (42) is disposed around the first contact portion (41).

4. The smart ladder of claim 1, wherein, The connector (2) is provided with a buffer space (202), and the second contact part (42) can move in the buffer space (202).

5. The smart ladder of claim 4, wherein, The first contact portion (41) is disposed around the second contact portion (42); The connector (2) is provided with a receiving cavity (201) for accommodating the pressure sensor (4), and a connecting post (22) is provided in the receiving cavity (201), and a connecting boss (21) is provided on the connecting post (22); The connecting column (22) is hollow to form the buffer space (202). The connecting column (22) is also provided with a through groove (203) that connects the buffer space (202) and the receiving cavity (201). The deformable part (43) passes through the through groove (203).

6. The smart ladder of claim 5, wherein, The connecting post (22) is provided with a first annular limiting edge (221) surrounding the first contact portion (41).

7. The smart ladder of claim 1, wherein, The pressure sensor (4) is located between the connector (2) and the support (3), such that the connecting boss (21) is connected to or abuts against the upper surface (411) of the first contact portion (41), and the support (3) is connected to or abuts against the lower surface (422) of the second contact portion (42).

8. The smart ladder of claim 1, wherein, The connector (2) includes a connecting body (23) and a first snap-fit ​​structure (24) formed on the connecting body (23). The connecting boss (21) is formed on the connecting body (23). The first snap-fit ​​structure (24) and the connecting boss (21) together clamp the first contact portion (41).

9. The smart ladder of claim 8, wherein, The first snap-fit ​​structure (24) includes a first connecting arm (241) and a first fastening portion (242) formed on the first connecting arm (241). The first connecting arm (241) is connected to the connecting body (23). The first fastening portion (242) has a first snap-fit ​​surface (2421). The first contact portion (41) is located between the first snap-fit ​​surface (2421) and the connecting boss (21). The distance from the first snap-fit ​​surface (2421) to the connecting boss (21) is greater than or equal to the thickness of the first contact portion (41).

10. The smart ladder of claim 8, wherein, The number of the first snap-fit ​​structure (24) is at least two, and at least two of the first snap-fit ​​structures (24) are arranged opposite to the deformable part (43).

11. The smart ladder of claim 1, wherein, The support member (3) includes a support body (31) and a second snap-fit ​​structure (32) formed on the support body (31), wherein the support body (31) and the second snap-fit ​​structure (32) together clamp the second contact portion (42).

12. The smart ladder of claim 11, wherein, The second snap-fit ​​structure (32) includes a second connecting arm (321) and a second fastening portion (322) formed on the second connecting arm (321). The second connecting arm (321) connects to the support body (31). The second fastening portion (322) has a second snap-fit ​​surface (3221). The second contact portion (42) is located between the second snap-fit ​​surface (3221) and the support body (31). The distance from the second snap-fit ​​surface (3221) to the support body (31) is greater than or equal to the thickness of the second contact portion (42).

13. The smart ladder of claim 11, wherein, The number of the second snap-fit ​​structure (32) is at least two, and at least two of the second snap-fit ​​structures (32) are arranged opposite to the deformable part (43).

14. The smart ladder of claim 11, wherein, The support body (31) is also provided with a second annular limiting edge (311) surrounding the second contact portion (42).

15. The smart ladder of claim 1, wherein, The support member (3) is fixedly connected to the second contact part (42) by bolts.

16. The smart ladder of claim 1, wherein, The connector (2) is detachably installed at the ladder foot (11).

17. The smart ladder of claim 1, wherein, The connector (2) and the ladder foot (11) are integrally formed.

18. The smart ladder of claim 1, wherein, It also includes a shield (5), which is connected to the connector (2) or the ladder foot (11). The shield (5) cooperates with the connector (2) or the ladder foot (11) to jointly surround the pressure sensor (4). The shield (5) has a through-hole (51) for the support member (3) to pass through.

19. The smart ladder of claim 1, wherein, It also includes an early warning module (6), which is installed on the ladder (1) and is electrically connected to the pressure sensor (4).

20. The smart ladder of claim 19, wherein, The top of the ladder (1) is provided with a handrail (12), and the warning module (6) is installed on the handrail (12).

21. The smart ladder of claim 19, wherein, The early warning module (6) is electrically connected with the pressure sensor (4) through a wire (7), the ladder frame (1) is internally hollow and forms a wire passing channel (130), the wire passing channel (130) penetrates to the ladder leg (11), and the wire (7) is distributed in the wire passing channel (130).

22. The smart ladder of claim 1, wherein, The ladder frame (1) comprises at least two supporting rods (13) and a stepping plate (14) connected with the at least two supporting rods (13), the bottom of the supporting rod (13) forms the ladder leg (11), and the stepping plate (14) is provided with anti-skid lines.

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