An automatic measuring device for elevator door panel thickness

Abstract

This invention provides an automatic elevator door panel thickness measuring device, including a sliding column, a handle, a fixed clamp, scale lines, a sleeve, a movable clamp, a measuring box, and a pressure sensor. The sliding column has a handle and a fixed clamp fixed at both ends, and scale lines are engraved on its outer surface. A sleeve is slidably mounted on the outer surface of the sliding column, with a movable clamp and a measuring box fixed to its outer surface. The pressure sensor is embedded in the side of the movable clamp. The movable clamp not only works in conjunction with the fixed clamp to measure the elevator door panel thickness but also reduces the harmful rotational torque generated by the lever effect, ensuring stability during measurement. Furthermore, the measuring box measures and displays the elevator door panel thickness. In conjunction with the pressure sensor, it prevents damage to the elevator door panel.

Description

Technical Field

[0001] This utility model belongs to the field of elevator door panel measurement technology, and in particular relates to an automatic elevator door panel thickness measuring device. Background Technology

[0002] In fields such as steel structure manufacturing and special equipment production, elevator door panels are key components ensuring the safety and stability of elevator operation. The accuracy of their thickness directly affects the door panel's load-bearing capacity, deformation resistance, and assembly precision with the elevator car. Therefore, accurate and efficient measurement of the thickness is an essential step in the production, processing, quality inspection, installation, and commissioning of elevator door panels.

[0003] Currently, the industry primarily relies on two traditional tools for measuring elevator door panel thickness. One is the traditional vernier caliper, whose basic structure includes a main scale, a vernier scale, and measuring jaws fixed to both scales. The object is clamped by the jaws when the vernier scale is pushed, and the thickness value is read based on the difference in scale readings between the main and vernier scales. This tool meets certain accuracy requirements for measuring small parts and small, flat areas, and is relatively inexpensive and easy to operate. The other is a large ultrasonic thickness gauge. Its principle is to emit ultrasonic waves through a probe towards the object being measured, and calculate the thickness using the time difference between the reflections of the ultrasonic waves on the upper and lower surfaces of the object. This is suitable for large, inaccessible measurement scenarios.

[0004] However, these existing measuring tools have obvious limitations when facing the measurement needs of elevator door panels: for traditional vernier calipers, when operating the vernier calipers manually, the clamping force of the two measuring jaws is entirely controlled by experience. Too little force will lead to unstable clamping, while too much force may cause slight deformation of the door panel, further affecting the measurement accuracy; for large ultrasonic thickness gauges, the equipment cost is high, which is not conducive to large-scale application on the production line. At the same time, when there is local corrosion or coating on the door panel surface, the reflection of ultrasonic waves is easily interfered with, resulting in increased measurement error.

[0005] Therefore, it is essential to invent an automatic measuring device for elevator door panel thickness. Utility Model Content

[0006] To address the above problems, this utility model proposes an automatic elevator door panel thickness measuring device, and the technical solution used is as follows:

[0007] An automatic elevator door panel thickness measuring device includes a sliding column, a handle, a fixed clamp, scale lines, a sleeve, a movable clamp, a measuring box, and a pressure sensor. One end of the sliding column is welded to a handle, and the other end is welded to a fixed clamp, wherein the fixed clamp is perpendicular to the sliding column. Scale lines are engraved along the extension direction on the outer surface of the sliding column, with the starting end of the scale lines corresponding to the fixed clamp. A sleeve is slidably mounted on the outer surface of the sliding column. A movable clamp is welded to the outer surface of the sleeve, located on one side of the fixed clamp, and a pressure sensor is embedded on the side of the movable clamp closest to the fixed clamp, with the detection end of the pressure sensor higher than the corresponding side of the movable clamp. A measuring box is bolted to the outer surface of the sleeve, and the measuring box is electrically connected to the pressure sensor via a data cable.

[0008] Furthermore, the movable clamp includes a clamp body, a snap-fit ​​head, a stud, and a slide rail. The clamp body is fixed to the outer side of the sleeve by welding, and the clamp body is arranged parallel to the fixed clamp. The snap-fit ​​head is L-shaped, and one end of the snap-fit ​​head is slidably installed inside the clamp body. A pressure sensor is embedded on the side of the clamp body near the fixed clamp, wherein the detection end of the pressure sensor is higher than the corresponding side of the clamp body. A slide rail is provided on the corresponding side of the snap-fit ​​head. A stud is threadedly installed on the clamp body, wherein one end of the stud is movably disposed inside the slide rail. This arrangement allows for the measurement of the thickness of the elevator door panel in conjunction with the fixed clamp. Furthermore, the snap-fit ​​head can reduce the harmful rotational torque generated by the leverage effect, ensuring that the clamp body remains stable during the measurement process.

[0009] Furthermore, the measuring box includes a housing, a power supply, a displacement sensor, a locking mechanism, a display panel, and a control switch. The housing is bolted to the outer side of the sleeve, and the power supply, displacement sensor, and locking mechanism are bolted to the inside of the housing, with the output end of the locking mechanism sliding through the housing and sleeve. The display panel and control switch are bolted to the outer side of the housing, and the display panel has a built-in control module that is electrically connected to the display panel via a data cable. The power supply is electrically connected to the displacement sensor, locking mechanism, display panel, and pressure sensor via a power cable. The display panel is electrically connected to the displacement sensor, locking mechanism, control switch, and pressure sensor via a data cable. This configuration allows for the detection and display of the displacement distance of the sleeve on the sliding column. Furthermore, the cooperation of the locking mechanism and pressure sensor prevents the moving clamps from damaging the elevator door panel.

[0010] Furthermore, the locking mechanism includes a protective shell, an electric push rod, and a pressing head. The protective shell is fixed inside the housing with bolts, and the electric push rod is fixed inside the protective shell with bolts. The output end of the electric push rod is fixed to the pressing head with bolts, wherein the pressing head slides through the protective shell, the housing, and the sleeve in sequence. The electric push rod is electrically connected to the power supply via a power cord, and is also electrically connected to the display panel via a data cable. This configuration allows the pressing head to move accordingly via the electric push rod under the control of the display panel, thereby enabling the pressing head to press or separate the sliding column.

[0011] Furthermore, a rubber sleeve is fixed to the outer side of the handle, and several protrusions are evenly distributed on the outer side of the rubber sleeve. This design can improve the friction between the user's palm and the handle when the user holds the handle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The movable clamp of this utility model can be used in conjunction with the fixed clamp to measure the thickness of the elevator door panel. Secondly, the position of the fastening head inside the clamp body can be adjusted according to the thickness of the elevator door panel, so that the bending position of the fastening head can be fastened to the edge of the elevator door panel. Finally, the stud is tightened, thereby reducing the harmful rotational torque generated by the leverage effect and ensuring that the clamp body remains stable during the measurement process and will not move unexpectedly.

[0014] 2. The measuring box of this utility model can detect the displacement distance of the sleeve on the sliding column through the displacement sensor and display it through the display panel. Secondly, the cooperation of the locking mechanism and the pressure sensor can prevent the moving clamp from crushing the elevator door panel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the movable clamp of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the measuring box of this utility model.

[0019] Figure 4This is a structural schematic diagram of the locking mechanism of this utility model.

[0020] In the picture:

[0021] 1-Sliding column, 2-Handle, 3-Fixed clamp, 4-Scale line, 5-Sleeve, 6-Moving clamp, 61-Clamp body, 62-Snap-fit ​​head, 63-Stud, 64-Slide rail, 7-Measuring box, 71-Box body, 72-Power supply, 73-Displacement sensor, 74-Locking mechanism, 741-Protective shell, 742-Electric push rod, 743-Extrusion head, 75-Display panel, 76-Control switch, 8-Pressure sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Please see Figures 1 to 4 As shown, this utility model is an automatic elevator door panel thickness measuring device, including a sliding column 1, a handle 2, a fixed clamp 3, a scale line 4, a sleeve 5, a movable clamp 6, a measuring box 7, and a pressure sensor 8. One end of the sliding column 1 is fixed to the handle 2 by welding, and the other end of the sliding column 1 is fixed to the fixed clamp 3 by welding, wherein the fixed clamp 3 is arranged perpendicular to the sliding column 1; the outer side of the sliding column 1 is engraved with a scale line 4 along the extension direction, wherein the starting end of the scale line 4 is adapted to the fixed clamp 3; the sleeve 5 is slidably installed on the outer side of the sliding column 1; the movable clamp 6 is fixed to the outer side of the sleeve 5 by welding, wherein the movable clamp 6 is located on one side of the fixed clamp 3, and the pressure sensor 8 is embedded in the side of the movable clamp 6 near the fixed clamp 3, wherein the detection end of the pressure sensor 8 is higher than the corresponding side of the movable clamp 6; the measuring box 7 is fixed to the outer side of the sleeve 5 by bolts, wherein the measuring box 7 is electrically connected to the pressure sensor 8 through a data cable.

[0025] Furthermore, the movable clamp 6 includes a clamp body 61, a snap-fit ​​head 62, a stud 63, and a slide 64. The clamp body 61 is fixed to the outer side of the sleeve 5 by welding, and the clamp body 61 is arranged parallel to the fixed clamp 3. The snap-fit ​​head 62 is L-shaped, and one end of the snap-fit ​​head 62 is slidably installed inside the clamp body 61. A pressure sensor 8 is embedded on the side of the clamp body 61 near the fixed clamp 3, wherein the detection end of the pressure sensor 8 is higher than the corresponding side of the clamp body 61. In this application, "higher than" in "the detection end of the pressure sensor is higher than the corresponding side of the clamp body 61" can be understood as slightly higher, that is, while ensuring that it is not Pressure detection is achieved simultaneously without affecting the measurement; a slide 64 is provided on the corresponding side of the clamping head 62; a stud 63 is installed on the clamping body 61 by thread engagement, wherein one end of the stud 63 is movably disposed inside the slide 64. During use, the stud 63 can be loosened, and then the position of the clamping head 62 inside the clamping body 61 can be adjusted according to the width of the elevator door panel, so that the clamping head 62 can be bent to engage with the edge of the elevator door panel. Finally, the stud 63 is tightened, thereby reducing the harmful rotational torque generated by the leverage effect and ensuring that the clamping body 61 remains stable during the measurement process and will not move unexpectedly.

[0026] Further, the measuring box 7 includes a box body 71, a power supply 72, a displacement sensor 73, a locking mechanism 74, a display panel 75, and a control switch 76. The box body 71 is fixed to the outer side of the sleeve 5 by bolts, and the power supply 72, displacement sensor 73, and locking mechanism 74 are fixed inside the box body 71 by bolts, wherein the output end of the locking mechanism 74 slides through the box body 71 and the sleeve 5; the display panel 75 and control switch 76 are fixed to the outer side of the box body 71 by bolts, wherein the display panel 75 has a built-in control module, which is electrically connected to the display panel 75 via a data cable; the power supply 72 is electrically connected to the displacement sensor 73, locking mechanism 74, display panel 75, and pressure sensor 8 via a power cable; the display panel 75 is connected to the pressure sensor 8 via a data cable. The data cable is electrically connected to the displacement sensor 73, the locking mechanism 74, the control switch 76, and the pressure sensor 8, respectively. During use, the working state of the display panel can be controlled by the control switch 76. Secondly, the displacement sensor 73 can detect the displacement distance of the sleeve 5 on the sliding column 1 and transmit it to the display panel 75. The control module built into the display panel 75 analyzes the data to determine the distance between the fixed clamp 3 and the movable clamp 6. Finally, the analysis data is displayed on the display panel 75. In addition, the pressure sensor 8 can transmit the detected data to the display panel 75. The control module built into the display panel 75 controls the locking mechanism 74 to work accordingly, thereby locking or unlocking the position of the sleeve 5 on the sliding column 1.

[0027] Furthermore, the locking mechanism 74 includes a protective shell 741, an electric push rod 742, and a pressing head 743. The protective shell 741 is fixed inside the housing 71 by bolts, and the electric push rod 742 is fixed inside the protective shell 741 by bolts. The pressing head 743 is fixed to the output end of the electric push rod 742 by bolts. The pressing head 743 slides through the protective shell 741, the housing 71, and the sleeve 5 in sequence. The electric push rod 742 is electrically connected to the power supply 72 via a power cord, and is also electrically connected to the display panel 75 via a data cable. In use, the electric push rod 742 can drive the pressing head 743 to move accordingly under the control of the display panel 75, thereby causing the pressing head 743 to press or separate the sliding column 1.

[0028] Furthermore, a rubber sleeve is fixed to the outer side of the handle 2, and several protrusions are evenly arranged on the outer side of the rubber sleeve. This arrangement can improve the friction between the palm and the handle 2 when the user holds the handle 2.

[0029] Please see Figure 1-4 As shown, this utility model is an automatic elevator door panel thickness measuring device. Its working principle is as follows: When in use, the fixing clamp 3 and the clamp body 61 are first attached to the two sides of the elevator door panel, and the fastening head 62 is attached to the corner of the elevator door panel. At this time, the user can detect the thickness of the elevator door panel by observing the position of the sleeve 5 on the scale line 4. Secondly, the thickness of the elevator door panel can be displayed by the cooperation of the displacement sensor 73 and the display panel 75. In addition, when the clamp body 61 exerts a large squeezing force on the elevator door panel, the sleeve 5 can be locked on the sliding column 1 by the cooperation of the pressure sensor 8 and the locking mechanism 74, so as to prevent the clamp body 61 from damaging the elevator door panel.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic elevator door panel thickness measuring device, comprising a sliding column (1), a handle (2), a fixed clamp (3), a scale line (4), a sleeve (5), a movable clamp (6), a measuring box (7), and a pressure sensor (8), characterized in that: One end of the sliding column (1) is fixed with a handle (2) by welding, and the other end of the sliding column (1) is fixed with a clamp (3), wherein the clamp (3) is set perpendicular to the sliding column (1); the outer side of the sliding column (1) is engraved with scale lines (4) along the extension direction, wherein the starting end of the scale lines (4) is adapted to the clamp (3); a sleeve (5) is slidably installed on the outer side of the sliding column (1); a movable clamp (6) is fixed on the outer side of the sleeve (5), wherein the movable clamp (6) is set on one side of the clamp (3), and a pressure sensor (8) is embedded on the side of the movable clamp (6) near the clamp (3), wherein the detection end of the pressure sensor (8) is higher than the corresponding side of the movable clamp (6); a measuring box (7) is fixed on the outer side of the sleeve (5), wherein the measuring box (7) is electrically connected to the pressure sensor (8) through a data cable.

2. The automatic elevator door panel thickness measuring device as described in claim 1, characterized in that: The movable clamp (6) includes a clamp body (61), a snap-fit ​​head (62), a stud (63), and a slide (64). The clamp body (61) is fixed to the outer side of the sleeve (5), and the clamp body (61) is arranged parallel to the fixed clamp (3). The snap-fit ​​head (62) is L-shaped, and one end of the snap-fit ​​head (62) is slidably installed inside the clamp body (61). A pressure sensor (8) is embedded on the side of the clamp body (61) near the fixed clamp (3), wherein the detection end of the pressure sensor (8) is higher than the corresponding side of the clamp body (61). A slide (64) is provided on the corresponding side of the snap-fit ​​head (62). A stud (63) is installed on the clamp body (61) by thread engagement, wherein one end of the stud (63) is movably arranged inside the slide (64).

3. The automatic elevator door panel thickness measuring device as described in claim 1, characterized in that: The measuring box (7) includes a box body (71), a power supply (72), a displacement sensor (73), a locking mechanism (74), a display panel (75), and a control switch (76). The box body (71) is fixed to the outer side of the sleeve (5), and the power supply (72), displacement sensor (73), and locking mechanism (74) are fixed inside the box body (71). The output end of the locking mechanism (74) slides through the box body (71) and the sleeve (5). The outer side of the box body (71) is fixed with a display panel (76). The display panel (75) and control switch (76) are provided. The control module is built into the display panel (75) and is electrically connected to the display panel (75) via a data cable. The power supply (72) is electrically connected to the displacement sensor (73), the locking mechanism (74), the display panel (75) and the pressure sensor (8) via a power cable. The display panel (75) is electrically connected to the displacement sensor (73), the locking mechanism (74), the control switch (76) and the pressure sensor (8) via a data cable.

4. The automatic elevator door panel thickness measuring device as described in claim 3, characterized in that: The locking mechanism (74) includes a protective shell (741), an electric push rod (742), and a pressing head (743). The protective shell (741) is fixed inside the housing (71), and the electric push rod (742) is fixed inside the protective shell (741). The pressing head (743) is fixed at the output end of the electric push rod (742), and the pressing head (743) slides through the protective shell (741), the housing (71), and the sleeve (5) in sequence. The electric push rod (742) is electrically connected to the power supply (72) through a power cord, and the electric push rod (742) is electrically connected to the display panel (75) through a data cable.

5. The automatic elevator door panel thickness measuring device as described in claim 1, characterized in that: The outer side of the handle (2) is fixed with a rubber sleeve, and the outer side of the rubber sleeve is evenly provided with several protrusions.

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