A device for detecting a gap in an elevator

Abstract

Embodiments of the present disclosure relate to the technical field of elevator gap detection, and one embodiment of the present disclosure provides a detection device for elevator gap, which is used for detecting the gap of an elevator and comprises a magnetic body and a detection sheet. The magnetic body can be magnetically fixed to the elevator. The detection sheet is movably arranged in the magnetic body and is used for moving in the direction of penetrating into the gap to detect whether the gap exceeds a preset value when the magnetic body is magnetically fixed to the elevator. Through the above technical solution, the technical problem of low detection efficiency of the elevator gap in the prior art is solved. Compared with the traditional plug gauge detection, the detection device can quickly detect the elevator gap through the magnetic fixing and direct pushing of the detection sheet, without trying different thicknesses of the sheet one by one as using the plug gauge, so that the detection time is greatly saved and the detection efficiency is improved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of elevator gap detection technology, and more specifically, to a device for detecting elevator gaps. Background Technology

[0002] An elevator is a vertical transportation tool that uses an electric motor to drive a car up and down within a shaft to transport people or goods vertically. The elevator door system mainly includes car doors and landing doors. These doors need to maintain relative movement during opening and closing; if they were completely flush against the door frame, friction and jamming would occur. Therefore, there are certain gaps between the car door and the car frame, between two car doors, between the landing door and the door frame, and between two landing doors. Regulations stipulate specific dimensions for these gaps, whether for passenger or freight elevators, ensuring they do not exceed the prescribed size. These gaps prevent door jamming and also prevent passengers' limbs from being trapped. Therefore, it is necessary to regularly inspect these gaps for maintenance and observation.

[0003] When inspecting gaps in elevators, feeler gauges are usually used. Feeler gauges consist of multiple metal sheets of different thicknesses. After being inserted into the gap, the gap value is determined by the thickness of the largest sheet that can be inserted. However, using feeler gauges is not convenient and cannot quickly complete the gap inspection, resulting in low inspection efficiency. Summary of the Invention

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a detection device for elevator gaps, which solves the technical problem of low detection efficiency of elevator gaps in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a detection device for elevator gaps, for detecting gaps in elevators, comprising a magnetic body and a detection plate;

[0006] The magnetic suction body can be magnetically fixed to the elevator;

[0007] The detection piece is movably disposed within the magnetic body and is used to move in the direction of penetrating the gap when the magnetic body is magnetically fixed to the elevator, so as to detect whether the gap exceeds a preset value.

[0008] For example, in at least one embodiment of the present disclosure, the magnetic body has a mounting groove for accommodating the detection piece, the detection piece being movably disposed in the mounting groove.

[0009] For example, in at least one embodiment of the present disclosure, the detection device includes a limiting portion, and the inner wall of the mounting groove has a limiting groove, which can accommodate the limiting portion and cooperate with the limiting portion to limit the movement range of the detection device.

[0010] For example, in at least one embodiment of the present disclosure, the detection device includes:

[0011] The detection unit is used to penetrate the gap.

[0012] An actuator extends to the outside of the mounting groove and is used to move the detection piece;

[0013] A connecting part is used to connect the detection part and the execution part.

[0014] For example, in at least one embodiment of the present disclosure, the mounting groove extends through the magnetic body along the moving direction of the detection piece, and the execution part, the connecting part, and the detection part are arranged sequentially along the direction in which the detection piece enters the gap.

[0015] For example, in at least one embodiment of the present disclosure, the detection device has a magnetic body having a first magnetic surface perpendicular to the moving direction of the detection piece. The first magnetic surface can be magnetically fixed to the surface of the elevator, and the slot on one side of the mounting groove is located in the plane where the first magnetic surface is located.

[0016] The detection unit is configured to be located inside the mounting slot when not in use, and to extend to the outside of the slot when the gap is being detected.

[0017] For example, in at least one embodiment of the detection device provided in this disclosure, the magnetic attraction body includes:

[0018] Matrix;

[0019] A rotating body is rotatably connected to the magnetic attraction body. The base and the rotating body each have a first flipping surface and a second flipping surface.

[0020] The rotating body is capable of rotating between an open state and a closed state;

[0021] When the rotating body is in the open state, the second flipping surface is located on one side of the first flipping surface and is coplanar with the first flipping surface. The first flipping surface and the second flipping surface serve as the second magnetic surface of the magnetic body, and the second magnetic surface can be magnetically fixed to the surface of the elevator.

[0022] When the rotating body is in a closed state, the second flipping surface is in contact with the first flipping surface.

[0023] For example, in at least one embodiment of the present disclosure, the number of detection pieces is multiple, and the multiple detection pieces are stacked in the mounting groove, wherein the preset value is a positive integer multiple of the thickness of the detection pieces.

[0024] For example, in at least one embodiment of the detection device provided in this disclosure, the substrate is further connected to a magnetic auxiliary arm, which extends in a direction parallel to the first flipping surface and is used to magnetically fix with the elevator when the second magnetic surface is magnetically fixed to the surface of the elevator.

[0025] For example, in at least one embodiment of the detection device provided in this disclosure, the substrate is further connected to a magnetic alignment member. The magnetic alignment member extends from the plane where the first magnetic surface is located along the moving direction of the detection piece in a direction away from the substrate. The thickness of the magnetic alignment member in the direction perpendicular to the first flipping surface is less than the preset value so as to penetrate the gap. The magnetic alignment member has an alignment surface that is coplanar with the first flipping surface.

[0026] The beneficial effects of the embodiments disclosed herein are as follows:

[0027] In this disclosure, compared to traditional feeler gauge testing, this testing device uses magnetic fixation and direct pushing of the testing piece to quickly detect elevator gaps. Unlike using feeler gauges, it eliminates the need to try different thicknesses of the piece individually, significantly saving testing time and improving efficiency. The scale markings on one side of the testing piece clearly and accurately display the gap size, avoiding errors caused by human judgment of the maximum thickness of the inserted piece when using feeler gauges, thus improving the accuracy of the test results. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the first gap and the second gap structure in this disclosure.

[0030] Figure 2 This is a three-dimensional structural diagram of the detection device in one embodiment of the present disclosure;

[0031] Figure 3 for Figure 2 Another three-dimensional structural schematic diagram of the detection device in the embodiment;

[0032] Figure 4 for Figure 2 A top view of the detection device in the embodiment;

[0033] Figure 5 for Figure 4 Schematic diagram of the sectional structure of the middle AA section;

[0034] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the middle BB;

[0035] Figure 7 This is a three-dimensional structural schematic diagram of the detection device in yet another embodiment of this disclosure;

[0036] Figure 8 for Figure 7 A side view of the detection device in the embodiment;

[0037] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure of the middle CC section;

[0038] In the diagram: Magnetic main body – 100, mounting groove – 101, limiting groove – 1011, first magnetic surface – 102, base – 110, first flipping surface – 111, magnetic auxiliary arm – 112, magnetic alignment component – ​​113, alignment surface – 1131, rotating main body – 120, second flipping surface – 121, detection piece – 200, detection unit – 201, execution unit – 202, connecting unit – 203, limiting unit – 204. Detailed Implementation

[0039] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0040] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0042] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] like Figure 1 As shown, the elevator's two double doors have a first gap A when closed, and a second gap B between the door and the frame. Each double door has a first surface C1 and a second surface C2, which are coplanar. The two double doors also have a third surface C3 and a fourth surface C4, which are parallel to and perpendicular to the first surface C1. The first gap A is the gap between the third surface C3 and the fourth surface C4. The frame has a fifth surface D1 and a sixth surface D2, which are parallel to the first surface C1 and perpendicular to the sixth surface D2. The second gap B is the gap between the fifth surface D1 and the first surface C1.

[0046] like Figures 2-6 As shown, it illustrates a detection device for elevator gaps in one embodiment of the present disclosure, used to detect whether a first gap A and a second gap B meet the standard, i.e., whether they are less than 6mm (passenger elevator) or 8mm (freight elevator). It includes a magnetic body 100 and a detection piece 200. The magnetic body 100 can be magnetically fixed to the elevator. The detection piece 200 is movably disposed within the magnetic body 100 and is used to move in the direction of penetrating the gap when the magnetic body 100 is magnetically fixed to the elevator, so as to detect whether the gap exceeds a preset value.

[0047] The magnetic body 100 can be designed in a long, narrow shape for easy gripping and operation. Its outer shell can be made of engineering plastics, such as polycarbonate, ensuring structural strength while preventing electrical conductivity risks when adsorbed onto elevator metal parts. A strong magnet is installed inside the body to ensure a firm adhesion to the elevator's metal surface. To evenly distribute the magnetic force, the magnets are arranged in an array inside the body. The material of the magnetic body 100 can also be customized according to user needs, such as magnetic materials or ferroalloys, and is not limited here.

[0048] The test piece 200 is in the shape of a thin sheet, such as... Figures 7-9 As shown, it can have a slight curvature to improve structural strength. Its thickness is designed according to the specified dimensions of the elevator gap. The detection piece 200 is made of high-strength, corrosion-resistant metal material, such as stainless steel, and its surface is polished to allow it to move smoothly within the groove of the magnetic body 100. The width of the detection piece 200 is slightly smaller than the width of the groove on the magnetic body 100 to ensure its flexibility in moving within the groove without causing excessive wobbling.

[0049] One end of the detection piece 200 allows the operator to easily move it within the groove by pushing it with their finger. The surface of the detection piece 200 may be engraved with scale markings along its length, with an accuracy of 1mm, to visually display the depth to which the detection piece 200 is inserted into the gap, thereby determining whether the gap exceeds a preset value.

[0050] The magnetic field generated by the powerful magnet inside the magnetic body 100 can attract the metal parts of the elevator, so that the magnetic body 100 is firmly fixed to the elevator and will not easily fall off, thus providing a basis for the stable detection of the detection piece 200.

[0051] After the magnetic main body 100 is fixed to the elevator, the operator pushes the detection plate 200 in the direction of inserting it into the gap. Since the thickness of the detection plate 200 is known, when the number of detection plates 200 inserted into the gap can no longer be increased, the condition of the gap can be determined based on the number of detection plates 200, and compared with the preset value, thereby quickly determining whether the gap exceeds the specified size.

[0052] During testing, after the magnetic main body 100 is attached to the elevator, the operator can push the detection piece 200 with their finger, causing it to slowly move towards the gap. During this movement, the insertion of the detection piece 200 should be closely observed. When the detection piece 200 is just fully inserted into the gap, pushing should be stopped, and the scale value on the surface of the detection piece 200, aligned with the edge of the magnetic main body 100, should be checked. This value indicates the size of the gap. Then, this value should be compared with the preset value for elevator gaps to determine if the gap meets the requirements.

[0053] Compared to traditional feeler gauge testing, this testing device can quickly test elevator gaps by magnetically fixing and directly pushing the testing piece 200. Unlike using feeler gauges, it eliminates the need to try different thicknesses of the pieces one by one, greatly saving testing time and improving testing efficiency.

[0054] The scale markings on one side of the test piece 200 can intuitively and accurately display the size of the gap, avoiding the errors caused by human judgment of the maximum thickness of the inserted thin piece when using a feeler gauge, thus improving the accuracy of the test results.

[0055] The rectangular shape and easy-to-grip design of the magnetic main body 100, along with the structure of the detection plate 200, allow operators to easily operate the detection device. The entire device is small in size and lightweight, making it convenient for inspectors to carry and allowing them to inspect elevator gaps anytime, anywhere.

[0056] Because it uses a magnetic fixation method, this detection device can be used to detect different gaps in various types of elevators. As long as the elevator parts are made of ferromagnetic materials, they can be firmly attracted and detected, making it highly versatile.

[0057] In some examples, the magnetic body 100 has a mounting groove 101 for receiving the detection piece 200, which is movably disposed in the mounting groove 101.

[0058] The mounting slot 101 can be rectangular, and its length, width, and depth are precisely designed according to the dimensions of the detection piece 200. The length direction must allow the detection piece 200 to move smoothly within it.

[0059] The two sides of the detection piece 200 are chamfered. A clearance fit is used between the detection piece 200 and the mounting groove 101, with the clearance size controlled between 0.1 and 0.2 mm. This ensures that the detection piece 200 can slide easily within the groove without causing significant wobbling during movement due to excessive clearance, which would affect detection accuracy. To further optimize sliding performance, a small amount of lubricant, such as silicone oil, is applied to the two sides of the detection piece 200, making its movement within the mounting groove 101 even smoother.

[0060] The mounting slot 101 provides a stable space for the detection piece 200, and the rectangular shape of the mounting slot 101 guides the movement of the detection piece 200. Within the mounting slot 101, the detection piece 200 can only move along the length of the slot, ensuring the accuracy of the detection direction and improving detection precision.

[0061] The appropriate clearance between the detection piece 200 and the mounting groove 101 allows the detection piece 200 to move freely with minimal resistance, facilitating operator movement for gap detection. Meanwhile, the limiting blocks at both ends of the mounting groove 101 ensure the movement range of the detection piece 200 within the groove, preventing accidental dislodgement and guaranteeing the reliability and safety of the detection device. This design satisfies both the need for flexible movement of the detection piece 200 and ensures its stable placement within the device.

[0062] In some examples, the detection piece 200 also includes a limiting part 204, and the inner wall of the mounting groove 101 has a limiting groove 1011, which can accommodate the limiting part 204 and cooperate with the limiting part 204 to limit the movement range of the detection piece 200.

[0063] The limiting part 204 is provided on both sides of the detection piece 200. It is rectangular in shape and its length is basically the same as that of the detection piece 200. This ensures that the limiting part 204 and the limiting groove 1011 fit well, and does not have too much impact on the overall structure of the detection piece 200 and its movement in the mounting groove 101.

[0064] The limiting grooves 1011 are symmetrically arranged on the inner walls of both sides of the mounting groove 101, corresponding to the position of the limiting part 204 of the detection piece 200, so as to limit the movement.

[0065] The cooperation between the limiting part 204 and the limiting groove 1011 restricts the movement range of the detection piece 200 within the mounting groove 101. When the detection piece 200 moves within the mounting groove 101, the limiting part 204 moves synchronously within the limiting groove 1011. Due to the length of the limiting groove 1011 and the boundary limits at both ends, the limiting part 204 can only move within the range specified by the limiting groove 1011, thereby preventing excessive movement of the detection piece 200 within the mounting groove 101 and ensuring that the detection piece 200 remains within the effective detection range. This avoids detection errors or equipment damage caused by uncontrolled movement of the detection piece 200.

[0066] The limiting part 204 moves within the limiting groove 1011, not only serving a limiting function but also providing additional guidance for the movement of the detection piece 200 within the mounting groove 101. The cooperation between the limiting part 204 and the limiting groove 1011 restricts the swaying of the detection piece 200 in the width direction, making the detection piece 200 more stable during movement and further improving detection accuracy. Simultaneously, this cooperation also helps maintain the positional accuracy of the detection piece 200 within the mounting groove 101, ensuring that the detection piece 200 can accurately measure the gap size when inserted into the elevator gap.

[0067] In some examples, such as Figure 9As shown, the detection piece 200 includes a detection part 201 for inserting into the gap, an execution part 202 extending to the outside of the mounting groove 101 for moving the detection piece 200, and a connecting part 203 for connecting the detection part 201 and the execution part 202.

[0068] The detection unit 201 is the part of the detection plate 200 used to insert into the elevator gap. When inserted into the gap, it must be long enough for accurate measurement, but not too long to affect operational flexibility. The front end of the detection unit 201 can be chamfered to facilitate its smooth insertion into narrow elevator gaps and reduce resistance during insertion.

[0069] The actuator 202 extends to the outside of the mounting groove 101 for easy operation. It can be rectangular in shape, with a thickness identical to the detection piece 200. This size design allows the operator to easily pinch or push the actuator 202 with their fingers, thereby moving the detection piece 200 within the mounting groove 101. The surface of the actuator 202 is designed with anti-slip textures, such as intersecting stripes, to increase friction between the operator's fingers and the actuator 202, preventing slippage during operation and ensuring operational accuracy.

[0070] The connecting part 203 serves to connect the detection part 201 and the execution part 202, ensuring the stability of the overall structure of the detection piece 200. It is a long, thin rectangular strip, the length of which is determined by the depth of the mounting groove 101 and the positional relationship between the detection part 201 and the execution part 202. The width of the connecting part 203 is the same as the thickness of the detection part 201 and the execution part 202, ensuring the consistency of the overall structure. A limiting part 204 may be provided on the connecting part 203.

[0071] The design of the detection unit 201, execution unit 202, and connecting unit 203 achieves a reasonable allocation of functions. The detection unit 201 is used to insert into elevator gaps for detection, and can accurately measure the gap size. The execution unit 202 is easy to operate; its design on the outside of the mounting slot 101 allows the operator to easily control the movement of the detection piece 200. The connecting unit 203 firmly connects the detection unit 201 and the execution unit 202, ensuring the stability of the overall structure of the detection piece 200 during movement, enabling the detection unit 201 to accurately respond to the operating commands of the execution unit 202, and achieving precise detection.

[0072] The actuator 202 improves the convenience and accuracy of operation for the operator. The operator can more steadily pinch or push the actuator 202, precisely controlling the movement speed and position of the detection piece 200, thereby enabling the detection unit 201 to accurately insert into the elevator gap and read the precise gap size. The chamfered design and good surface treatment of the detection unit 201 further reduce insertion resistance, improving the accuracy and efficiency of the detection.

[0073] In some examples, such as Figure 9 As shown, the mounting groove 101 passes through the magnetic body 100 along the moving direction of the detection piece 200, and the execution part 202, the connecting part 203 and the detection part 201 are arranged sequentially along the direction of the detection piece 200 entering the gap.

[0074] The mounting groove 101 extends completely through the magnetic body 100 along the moving direction of the detection piece 200. This design allows the detection piece 200 to move more smoothly and without obstruction within the mounting groove 101. The cross-sectional shape of the mounting groove 101 is rectangular, which is adapted to the shape of the detection piece 200.

[0075] The actuator 202 is located at one end of the detection piece 200 and outside the mounting groove 101, allowing for direct contact and operation by the operator. The actuator 202 is rectangular and has the same thickness as the detection piece 200. The connecting part 203 connects the actuator 202 and the detection part 201 and is a long, thin rectangular strip. The detection part 201 is located at the other end of the detection piece 200 and is used to insert into the elevator gap for detection.

[0076] The through-type structure of the mounting slot 101 eliminates potential obstacles during the movement of the detection piece 200, allowing the detection piece 200 to move freely back and forth within the mounting slot 101, thus improving the smoothness of operation. The actuator 202 is located on the outside of the mounting slot 101, making it convenient for the operator to pinch and push the actuator 202, thereby moving the entire detection piece 200 within the mounting slot 101, greatly improving the convenience of operation.

[0077] The actuator 202, connecting part 203, and detection part 201 of the detection piece 200 are arranged sequentially along the direction in which the detection piece 200 passes through the gap, ensuring the stability of the overall structure of the detection piece 200. During the detection process, when the operator pushes the actuator 202, the stable structure ensures that the detection part 201 accurately responds to the operation of the actuator 202 and precisely inserts into the elevator gap, thereby improving the accuracy of the detection.

[0078] In some examples, the magnetic body 100 has a first magnetic surface 102 perpendicular to the moving direction of the detection piece 200. The first magnetic surface 102 can be magnetically fixed to the surface of the elevator. The slot on one side of the mounting groove 101 is located in the plane where the first magnetic surface 102 is located. The detection part 201 is in the mounting groove 101 when not being detected, and extends to the outside of the slot when detecting gaps.

[0079] The first magnetic surface 102 is located on the magnetic body 100, perpendicular to the moving direction of the detection plate 200. It is a flat plane, the area of ​​which is determined according to the overall size of the magnetic body 100 and the required magnetic fixing strength. A strong magnet can be embedded inside the first magnetic surface 102 to ensure that a uniform and sufficient attraction force is generated when in contact with the elevator surface. The number of strong magnets can be multiple to increase the attraction force of the magnetic body 100, and the distribution of the strong magnets can be set according to the user's needs.

[0080] The slot on one side of the mounting slot 101 is located in the plane of the first magnetic surface 102. This design allows the detection piece 200 to directly face the elevator gap when it extends out of the slot for detection, reducing the angular deviation of the detection.

[0081] When not in use, the detection unit 201 is completely retracted into the mounting slot 101, ensuring the compactness and safety of the detection device in its non-use state. When it is necessary to inspect elevator gaps, the detection unit 201 can be smoothly extended to the outside of the slot by pushing the actuator 202.

[0082] The first magnetic surface 102, through its internally embedded strong magnet, magnetically attracts the elevator surface, firmly fixing the magnetic body 100 to the elevator. Since the first magnetic surface 102 is perpendicular to the moving direction of the detection piece 200 and the slot on one side of the mounting groove 101 is located within this plane, the detection piece 200, when extending from the slot for detection, can accurately align its moving direction with the elevator gap, providing guidance for the detection and helping to improve its accuracy.

[0083] When not in use, the detection unit 201 is housed within the mounting slot 101, making the entire detection device compact and easy to carry and store. When detection is required, the detection unit 201 can be easily extended to the outside of the slot for gap detection by pushing the actuator 202. The operation is simple and convenient, improving detection efficiency. This design not only meets the usage requirements of the detection device in different states but also ensures the smoothness of the detection process.

[0084] In some examples, the magnetic body 100 includes a base 110 and a rotating body 120, which is rotatably connected to the magnetic body 100. The base 110 and the rotating body 120 each have a first flip surface 111 and a second flip surface 121. The rotating body 120 can rotate between an open state and a closed state. When the rotating body 120 is in the open state, the second flip surface 121 is located on one side of the first flip surface 111 and is coplanar with the first flip surface 111. At this time, the first flip surface 111 and the second flip surface 121 can serve as the second magnetic surface of the magnetic body 100, which can be magnetically fixed to the surface of the elevator. When the rotating body 120 is in the closed state, the second flip surface 121 is in contact with the first flip surface 111.

[0085] To ensure the stability of the rotating body 120 in both open and closed states, positioning and locking mechanisms are provided on the base 110 and the rotating body 120. In the open state, the latches and slots at the contact points of the base 110 and the rotating body 120 ensure a tight connection and coplanarity, preventing accidental rotation of the rotating body 120 during testing. In the closed state, a magnetic locking structure is employed, where small magnets are embedded at corresponding positions on the first flip surface 111 and the second flip surface 121. When the two surfaces are in contact, they attract each other through magnetic force, ensuring a tight closure and preventing loosening.

[0086] The first flipping surface 111 is located on the base 110, and the mounting groove 101 passes through this surface. The first flipping surface 111 is embedded with an array of powerful magnets.

[0087] The second flipping surface 121 is located on the rotating body 120, and the distribution and performance of the magnets inside it are the same as those of the first flipping surface 111. When the rotating body 120 is in the open state, the second flipping surface 121 and the first flipping surface 111 are coplanar, together forming the second magnetic attraction surface, which increases the attraction area with the elevator surface and improves the attraction stability. When in the closed state, the second flipping surface 121 and the first flipping surface 111 are tightly fitted, which not only protects the internal magnets but also makes the overall device more compact.

[0088] When the powerful magnets inside the first flipping surface 111 and the second flipping surface 121 come into contact with the metal surface of the elevator, they attract each other through magnetic force, causing the magnetic suction body 100 to be firmly attached to the elevator surface. When detecting the first gap A, the first magnetic suction surface 102, i.e., the portion of the first flipping surface 111 or its closed position with the second flipping surface 121, is attached to the first surface C1 or the second surface C2, using the magnetic attraction to provide stable support so that the detection piece 200 can slide into the first gap A for detection. When detecting the second gap B, the rotating body 120 is activated, causing the second magnetic suction surface formed by the first flipping surface 111 and the second flipping surface 121 to be attached to the first surface C1 or the second surface C2. The larger suction area ensures that the magnetic suction body 100 will not fall off due to vibration or other factors during the detection process, ensuring the accuracy and stability of the detection.

[0089] The detection unit 201 can meet the detection requirements for gaps of different sizes. By observing the number of gaps that the detection unit 200 can insert into, it can be determined whether the gap meets the standard. A scale line can be provided on one side of the actuator 202 on the base 110. The scale line is located at the edge of the mounting groove 101. The scale value can be read through the scale line, and the scale value can reflect the number of gaps that the detection unit 200 can insert into.

[0090] When detecting the first gap A, ensure that the rotating body 120 is in a closed state, at which time the first magnetic surface 102 is an adsorption surface. Adsorb the first magnetic surface 102 of the magnetic body 100 onto the first surface C1 or the second surface C2 of the two double doors of the elevator, near the first gap A.

[0091] The operator pushes the actuator 202 of the detection piece 200 with their finger, causing the detection piece 201 to slide out along the mounting groove 101 and move towards the first gap A. The detection piece 201 is slowly inserted, and its insertion is observed. When the number of detection pieces 201 inserted into the first gap A is such that no more detection pieces 201 can be inserted, that is, when the maximum number of insertions is reached, the scale value of the scale line on the detection piece 201 aligned with the edge of the mounting groove 101 is read and compared with the standard value to determine whether the first gap A meets the standard.

[0092] After the test is completed, slide the test piece 200 back to its initial position along the mounting groove 101, and then remove the magnetic body 100 from the elevator door.

[0093] When testing the second gap B, the rotating body 120 is rotated from the closed state to the open state, so that the first flipping surface 111 and the second flipping surface 121 form the second magnetic attraction surface. The flatness and magnetic attraction performance of the second magnetic attraction surface are checked to ensure that the rotating body 120 is accurately and stably positioned in the open state.

[0094] The second magnetic surface is attached to either the first surface C1 or the second surface C2 of the two double doors of the elevator, near the second gap B. Because the area of ​​the second magnetic surface is increased, it can adhere more firmly to the elevator door.

[0095] Similar to the detection of the first gap A, the operator pushes the actuator 202 of the detection piece 200, causing the detection unit 201 to slide out and insert into the second gap B. The scale value corresponding to the maximum number of times the detection unit 201 is inserted into the second gap B is read and compared with the standard value to determine whether the second gap B meets the standard.

[0096] After the test is completed, first slide the test piece 200 back to its initial position, then rotate the rotating body 120 back to the closed state, and finally remove the magnetic body 100.

[0097] In some examples, there are multiple detection pieces 200, which are stacked in the mounting slot 101, with the preset value being a positive integer multiple of the thickness of the detection piece 200.

[0098] Multiple test pieces 200 are stacked in the mounting groove 101 in a parallel and tightly fitted manner. Each test piece 200 has the same dimensions, with its width and length adapted to the width and accommodateable length of the mounting groove 101, respectively, to ensure neat arrangement and free sliding within the groove. To facilitate differentiation between test pieces 200 of different thicknesses, the thickness value is marked on the side of each test piece 200 with different colored paint; for example, a test piece 200 with a total thickness of 6mm is marked in red, and another with a total thickness of 6mm is marked in orange, for easy identification by operators.

[0099] The design of stacking multiple detection pieces 200 allows for the rapid identification of the detection piece 200 that best matches the gap width when inspecting elevator gaps. Since the preset value is a positive integer multiple of the thickness of the detection piece 200, by sequentially trying detection pieces 200 of different thicknesses, it can be quickly determined whether the gap exceeds the preset value. This method avoids the tedious process of trying each thin piece individually in traditional inspections, greatly improving inspection efficiency.

[0100] In some examples, the base 110 is also connected to a magnetic auxiliary arm 112, which extends in a direction parallel to the first flipping surface 111 and is used to magnetically fix the second magnetic surface to the surface of the elevator.

[0101] The magnetic auxiliary arm 112 is designed in a cuboid shape, with its length determined according to actual testing requirements. It extends from the base 110 along a direction parallel to the first flipping surface 111 and is firmly connected to the base 110. The magnetic auxiliary arm 112 and the base 110 are manufactured using an integrated injection molding process. The side of the magnetic auxiliary arm 112 that contacts the elevator surface is embedded with multiple strong magnets, thereby providing reliable magnetic attraction and fixing force.

[0102] The magnetic auxiliary arm 112 extends from the side of the base 110 near the rotating body 120, and its bottom surface is on the same plane as the first flip surface 111 and the second flip surface 121. When the rotating body 120 is in the open state and forms the second magnetic surface, the bottom surface of the magnetic auxiliary arm 112 and the second magnetic surface work together on the elevator surface. This positional relationship ensures that the magnetic auxiliary arm 112 can work in coordination with the second magnetic surface, enhancing the overall magnetic fixation effect.

[0103] When the second magnetic surface adheres to the elevator surface, the bottom surface of the magnetic auxiliary arm 112 simultaneously contacts the elevator surface and generates a magnetic attraction. Since the magnetic auxiliary arm 112 extends along a direction parallel to the first flipping surface 111, it can further increase the force on the device on the elevator surface based on the second magnetic surface, increasing the stability of the fixation. Especially for elevator components with uneven surfaces or slight curvatures, the magnetic auxiliary arm 112 can better fit, compensating for any potential insufficient adhesion of the second magnetic surface and ensuring that the detection device will not loosen due to vibration or other external forces during the detection process.

[0104] The magnetic auxiliary arm 112 alters the force distribution on the elevator surface by adding additional magnetic fixing points on top of the second magnetic surface. Multiple evenly distributed small, powerful magnets generate a strong attraction between the magnetic auxiliary arm 112 and the elevator surface, working together with the second magnetic surface to form a more stable fixing structure.

[0105] In some examples, the substrate 110 is also connected to a magnetic alignment member 113. The magnetic alignment member 113 extends from the plane where the first magnetic surface 102 is located along the moving direction of the detection piece 200 in a direction away from the substrate 110. The thickness of the magnetic alignment member 113 in the direction perpendicular to the first flip surface 111 is less than a preset value so as to penetrate into the gap. The magnetic alignment member 113 has an alignment surface 1131 that is coplanar with the first flip surface 111.

[0106] The magnetic alignment member 113 can be in the shape of a cuboid, extending from the plane of the first magnetic surface 102 along the moving direction of the detection piece 200 in a direction away from the base 110. The thickness in the direction perpendicular to the first flipping surface 111 is less than a preset value. This size design ensures that the magnetic alignment member 113 can pass through the elevator gap, but its excessive thickness will not affect its positioning effect in the gap.

[0107] The magnetic alignment component 113 and the substrate 110 are manufactured by injection molding. A strong magnet can be embedded inside the magnetic alignment component 113 to achieve magnetic attraction.

[0108] The magnetic alignment member 113 is connected to the base 110, and its alignment surface 1131 is coplanar with the first flipping surface 111. When the magnetic body 100 is attracted to the elevator surface, the alignment surface 1131 is in contact with the elevator surface, and the magnetic alignment member 113 can penetrate the elevator gap. This positional relationship allows the detection piece 200 to accurately insert into the gap for detection by using the magnetic alignment member 113 as a reference during movement.

[0109] Because the thickness of the magnetic alignment member 113 is less than the preset value and can penetrate the gap, it plays a role in positioning and guiding within the gap. When the detection piece 200 moves towards the gap, the operator can observe the relative position of the detection piece 200 and the magnetic alignment member 113 to ensure that the detection piece 200 is parallel to the magnetic alignment member 113, thereby inserting it into the gap more accurately. At the same time, the magnetic attraction of the magnetic alignment member 113 further enhances the fixing effect of the magnetic body 100 on the elevator surface, ensuring the stability of the device during the detection process.

[0110] The magnetic alignment member 113, by inserting into the elevator gap and having an alignment surface 1131 coplanar with the first flipping surface 111, adheres to the elevator surface, providing a precise positioning reference for the detection piece 200. During the detection process, the detection piece 200, using the magnetic alignment member 113 as a reference, can more accurately align with the gap, reducing angular deviations caused by human operation and thus improving detection accuracy. For example, when detecting the gap between the car door and the car frame, the magnetic alignment member 113 first inserts into the gap and adheres to the elevator surface, and the detection piece 200 moves along a direction parallel to the magnetic alignment member 113, ensuring that the detection piece 200 can accurately insert into the gap for measurement.

[0111] The magnet inside the magnetic alignment component 113 works in conjunction with the magnets on the first flipping surface 111 and the second flipping surface 121 to enhance the fixation effect of the magnetic body 100 on the elevator surface. During elevator operation, vibrations and shaking are inevitable. The magnetic alignment component 113 effectively resists these external forces, preventing the detection device from falling off the elevator surface and ensuring smooth detection operations. Simultaneously, the positioning function of the magnetic alignment component 113 in the gap makes the detection piece 200 more stable when inserted into the gap, reducing detection errors caused by uneven gaps or device shaking.

[0112] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A device for detecting elevator gaps, used to detect gaps in elevators, characterized in that, Includes a magnetic main body (100) and a detection piece (200); The magnetic body (100) can be magnetically fixed to the elevator. The detection piece (200) is movably disposed inside the magnetic body (100) and is used to move in the direction of penetrating the gap when the magnetic body (100) is magnetically fixed to the elevator, so as to detect whether the gap exceeds a preset value.

2. The detection device according to claim 1, characterized in that, The magnetic body (100) has a mounting groove (101) for accommodating the detection piece (200), which is movably disposed in the mounting groove (101).

3. The detection device according to claim 2, characterized in that, The detection piece (200) includes a limiting part (204), and the inner wall of the mounting groove (101) has a limiting groove (1011). The limiting groove (1011) can accommodate the limiting part (204) and cooperate with the limiting part (204) to limit the movement range of the detection piece (200).

4. The detection device according to claim 2, characterized in that, The detection strip (200) includes: The detection unit (201) is used to penetrate the gap; An actuator (202) extends to the outside of the mounting groove (101) and is used to move the detection piece (200); A connecting part (203) is used to connect the detection part (201) and the execution part (202).

5. The detection device according to claim 4, characterized in that, The mounting groove (101) passes through the magnetic body (100) along the moving direction of the detection piece (200), and the execution part (202), the connecting part (203) and the detection part (201) are arranged sequentially along the direction in which the detection piece (200) enters the gap.

6. The detection device according to claim 4, characterized in that, The magnetic body (100) has a first magnetic surface (102) perpendicular to the moving direction of the detection piece (200). The first magnetic surface (102) can be magnetically fixed to the surface of the elevator. The slot on one side of the mounting groove (101) is located in the plane where the first magnetic surface (102) is located. The detection unit (201) is configured to be located inside the mounting groove (101) when not in use, and to extend to the outside of the groove when the gap is being detected.

7. The detection device according to claim 6, characterized in that, The magnetic attraction body (100) includes: Matrix (110); A rotating body (120) is rotatably connected to the magnetic body (100). The base (110) and the rotating body (120) have a first flipping surface (111) and a second flipping surface (121), respectively. The rotating body (120) is capable of rotating between an open state and a closed state; When the rotating body (120) is in the open state, the second flipping surface (121) is located on one side of the first flipping surface (111) and is coplanar with the first flipping surface (111). The first flipping surface (111) and the second flipping surface (121) serve as the second magnetic surface of the magnetic body (100). The second magnetic surface can be magnetically fixed to the surface of the elevator. When the rotating body (120) is in a closed state, the second flipping surface (121) is in contact with the first flipping surface (111).

8. The detection device according to any one of claims 2 to 7, characterized in that, The number of the detection pieces (200) is multiple, and the multiple detection pieces (200) are stacked in the mounting groove (101). The preset value is a positive integer multiple of the thickness of the detection pieces (200).

9. The detection device according to claim 7, characterized in that, The base (110) is also connected to a magnetic suction auxiliary arm (112), which extends in a direction parallel to the first flipping surface (111) and is used to magnetically fix the elevator when the second magnetic suction surface is magnetically fixed to the surface of the elevator.

10. The detection device according to claim 7, characterized in that, The substrate (110) is also connected to a magnetic alignment member (113). The magnetic alignment member (113) extends from the plane where the first magnetic surface (102) is located along the moving direction of the detection piece (200) away from the substrate (110). The thickness of the magnetic alignment member (113) in the direction perpendicular to the first flip surface (111) is less than the preset value so as to penetrate the gap. The magnetic alignment member (113) has an alignment surface (1131) that is coplanar with the first flip surface (111).

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