A fixing device for an elevator detection apparatus

Abstract

The utility model relates to elevator detection technical field, concretely relates to a kind of fixing device for elevator detection equipment.The utility model provides a kind of fixing device for elevator detection equipment, the elevator detection equipment includes sensor and acquisition instrument, including base, magnetic switch and at least one sensor fixing mechanism, the base includes shell and at least one side plate arranged on shell, the acquisition instrument is installed on the shell by threaded fastener, the sensor fixing mechanism is installed on the side plate, for fixing sensor;The magnetic switch is installed in the shell, and the knob of the magnetic switch is located the outside of the shell.Using the fixing device for the present elevator detection equipment installation acquisition instrument and sensor is more convenient, fast, both guarantee and elevator component firm fit, it is convenient to test in quick adjustment acquisition instrument and the installation position of sensor, simplifies installation and dismounting process.

Description

Technical Field

[0001] This utility model relates to the field of elevator testing technology, specifically to a fixing device for elevator testing equipment. Background Technology

[0002] In the elevator safety operation assurance system, inspection and testing, along with parameter collection and research, are core components. The accuracy of the data directly affects the assessment of elevator operating status and the identification of safety hazards. In the elevator safety inspection system, sensors act like "nerve endings" extending to critical parts of the equipment, responsible for capturing the most basic state information, while data acquisition devices act like the "central nervous system," responsible for summarizing, analyzing, and storing all this information. Currently, the DH5902N rugged dynamic signal data acquisition device is widely used in the industry for monitoring key parameters such as elevator acceleration, vibration, and displacement due to its strong adaptability and high acquisition accuracy.

[0003] Currently, the methods for fixing data acquisition devices and sensors mostly rely on conventional clamps or straps, which makes it inconvenient to adjust the position of the data acquisition devices and sensors at any time. Utility Model Content

[0004] (I) The problem to be solved by this utility model is that the current methods of fixing the data acquisition instrument and the sensor mostly rely on conventional clamps or straps, which are not convenient for adjusting the position of the data acquisition instrument and the sensor at any time.

[0005] (II) Technical Solution

[0006] A fixing device for elevator testing equipment, the elevator testing equipment including a sensor and a data acquisition device, including a base, a magnetic switch and at least one sensor fixing mechanism, the base including a housing and at least one side plate disposed on the housing, the data acquisition device being mounted on the housing by threaded fasteners, and the sensor fixing mechanism being mounted on the side plate for fixing the sensor;

[0007] The magnetic switch is installed inside the housing, and the knob of the magnetic switch is located outside the housing.

[0008] According to one embodiment of the present invention, at least one T-shaped groove is provided on the side plate, and the T-shaped groove extends along the length direction of the side plate;

[0009] The sensor fixing mechanism includes two T-blocks, two fixing seats, and two clamping blocks; the T-blocks, fixing seats, and clamping blocks correspond one-to-one, and the two T-blocks are sequentially assembled into the same T-slot along the length direction of the T-slot;

[0010] The fixing seat has a first end and a second end opposite to each other. The fixing seat has a first inclined surface. The distance between the first inclined surface and the bottom surface of the fixing seat gradually increases from the first end to the second end. A protrusion is integrally formed on the first inclined surface. A vertically arranged first mounting hole is provided on the protrusion.

[0011] Both of the fixing seats are fixed to the two T-blocks by first locking bolts and nuts, and the distance between the first ends of the two fixing seats is less than the distance between the second ends of the two fixing seats;

[0012] The clamp block is provided with a second inclined surface, and the second inclined surface is provided with a slot that matches the protrusion. The top of the clamp block is provided with a vertically arranged second mounting hole. The two clamp blocks are respectively mounted on the two fixed seats. The clamp block can slide along the length direction of the protrusion of the clamp block. The first mounting hole and the second mounting hole are connected by bolts.

[0013] According to one embodiment of the present invention, the fixing base includes a right-angled trapezoidal block and a rectangular plate connected together, the bottom surface of the rectangular plate is flush with the bottom surface of the right-angled trapezoidal block, and the inclined surface of the right-angled trapezoidal block forms the first inclined surface;

[0014] The width of the rectangular plate is greater than the width of the T-slot. A through hole is provided on the rectangular plate, and a bolt hole corresponding to the through hole is provided on the T-block.

[0015] According to one embodiment of the present invention, the clamp block has a curved surface, a bottom surface, a second inclined surface and a top surface connected in sequence, the bottom surface and the top surface are both horizontal surfaces, and the curved surface is bent toward the side where the second inclined surface is located.

[0016] According to one embodiment of the present invention, the first assembly hole includes a communicating groove and a threaded hole, the groove being higher than the threaded hole, and the projection of the threaded hole in the vertical direction falling completely into the groove;

[0017] The length of the second mounting hole is at least not less than the length of the groove.

[0018] According to one embodiment of the present invention, the top surface of the outer shell is provided with four mounting threaded holes, and the bottom four corners of the data acquisition instrument have circular holes that correspond one-to-one with the mounting threaded holes.

[0019] According to one embodiment of the present invention, at least two side plates are provided.

[0020] According to one embodiment of the present invention, the side plate has a strip hole communicating with the T-slot on its side, and the T-block has a screw hole on its side facing the strip hole.

[0021] The beneficial effects of this utility model are:

[0022] Using this elevator testing equipment, the mounting device makes it more convenient and faster to install the data acquisition unit and sensors. By rotating the knob of the magnetic switch, the adsorption or release state of the base can be quickly switched, ensuring a stable fit with the elevator components and facilitating quick adjustment of the installation position of the data acquisition unit and sensors during testing. This simplifies the installation and disassembly process and meets the high-efficiency operation requirements of inspection and testing scenarios. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A perspective view of the fixing device for elevator testing equipment provided in an embodiment of this utility model;

[0025] Figure 2 A cross-sectional view of the fixing device for elevator testing equipment provided in an embodiment of this utility model;

[0026] Figure 3 A perspective view of the fixing base and clamping block provided in an embodiment of this utility model;

[0027] Figure 4 A perspective view of the fixing base provided in an embodiment of this utility model;

[0028] Figure 5 A perspective view of the clamp block provided in an embodiment of this utility model;

[0029] Figure 6 A structural diagram of a fixing device for elevator testing equipment provided in an embodiment of this utility model.

[0030] Icons: 1. Base; 101. Mounting threaded hole; 102. Rotary magnetic switch; 103. Side plate; 104. T-slot; 105. Strip hole; 2. T-block; 3. Fixing base; 301. Right-angled trapezoidal block; 302. Rectangular plate; 303. Protrusion; 304. Groove; 305. Threaded hole; 306. First inclined surface; 307. Through hole; 4. Fixture block; 401. Second inclined surface; 402. Slot; 403. Second assembly hole; 404. Curved surface; 5. First locking bolt; 6. Second locking bolt. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] like Figures 1-6 As shown, one embodiment of this utility model provides a fixing device for elevator testing equipment. The elevator testing equipment includes a sensor and a data acquisition device, including a base 1, a magnetic switch and at least one sensor fixing mechanism. The base 1 includes a housing and at least one side plate 103 disposed on the housing. The data acquisition device is installed on the housing by threaded fasteners. The sensor fixing mechanism is installed on the side plate 103 for fixing the sensor.

[0033] The magnetic switch is installed inside the housing, while the knob of the magnetic switch is located outside the housing.

[0034] In this embodiment, when installing the elevator detection equipment, the data acquisition device is first placed on the base 1, and its position is adjusted so that the mounting holes at the four corners of the bottom of the data acquisition device are aligned with the mounting threaded holes 101 at the four corners of the top of the base 1. Then, the data acquisition device is fixed to the base 1 using four bolts. Next, the sensor fixing mechanism is assembled onto the side plate 103 of the base 1, and the sensor is fixed in place using the sensor fixing mechanism. Finally, the base 1 is attached to the elevator, and the knob of the magnetic switch is turned. Taking advantage of the characteristic that many elevator parts can be attracted by magnets, the base 1 is firmly attached to the elevator.

[0035] Previously, clamps or straps were used to fix the data acquisition device to the elevator frame or beam, and clamps or straps were used to fix the sensor to the data acquisition device or the elevator frame or beam.

[0036] Compared to previous fixing methods, using this elevator testing equipment with a fixing device to install the data acquisition instrument and sensors is more convenient and faster. By rotating the knob of the magnetic switch, the adsorption or release state of the base 1 can be quickly switched, which not only ensures a stable fit with the elevator components, but also facilitates quick adjustment of the installation position of the data acquisition instrument and sensors during testing. This simplifies the installation and disassembly process and meets the high-efficiency operation requirements of inspection and testing scenarios.

[0037] It should be noted that the DH5902N data acquisition unit has four screw holes at the four corners of its bottom, and four corresponding mounting threaded holes 101 are provided on the top of the outer shell of the base 1. In this way, the data acquisition unit can be fixedly installed on the base 1 using four bolts, ensuring that there is no relative displacement between the data acquisition unit and the base 1.

[0038] In this embodiment, the magnetic switch is a rotary magnetic switch 102, preferably a magnetic switch with a magnetic attraction force ranging from 200 kgf to 500 kgf.

[0039] Specifically, the rotary magnetic switch 102 used in this embodiment has a length, width and height of 80mm×210mm×40mm, and a maximum magnetic attraction force of 350kgf.

[0040] In this embodiment, as Figure 1 As shown, the side plate 103 and the base 1 are integrally formed, and the side plate 103 and the base 1 have the same length. At least one T-shaped groove 104 is provided on the side plate 103, and the T-shaped groove 104 extends along the length direction of the side plate 103.

[0041] In some embodiments, the sensor fixing mechanism includes two T-blocks 2, two fixing seats 3, and two clamping blocks 4. The T-blocks 2, fixing seats 3, and clamping blocks 4 correspond one-to-one. The T-blocks 2 are adapted to the T-slots 104. The two T-blocks 2 are sequentially assembled into the same T-slot 104 along the length direction of the T-slot 104; that is, the two T-blocks 2 can slide within the T-slot 104 along the length direction of the T-slot 104. In addition, a bolt hole is provided on each T-block 2.

[0042] Fixed base 3, as Figure 3 and Figure 4As shown, it includes an integrally formed right-angled trapezoidal block 301 and a rectangular plate 302. The rectangular plate 302 is connected to a vertical surface of the right-angled trapezoidal block 301, and the bottom surface of the right-angled trapezoidal block 301 and the bottom surface of the rectangular plate 302 are located in the same horizontal plane. The rectangular plate 302 is provided with a vertically arranged through hole 307. The inclined surface of the right-angled trapezoidal block 301 is named the first inclined surface 306. A protrusion 303 is integrally formed on the inclined surface of the right-angled trapezoidal block 301. The length of the protrusion 303 is the same as the length of the first inclined surface 306, and the width of the protrusion 303 is less than the width of the first inclined surface 306. In addition, a first mounting hole is provided on the right-angled trapezoidal block 301. The first mounting hole includes a connected groove 304 and a threaded hole 305. The groove 304 is located on the first inclined surface 306, and the threaded hole 305 is lower than the groove 304 and communicates with the groove 304.

[0043] Correspondingly, such as Figure 3 and Figure 4 As shown, the clamp block 4 includes a curved surface 404, a vertical surface, a bottom surface, a second inclined surface 401, and a top surface connected in sequence. The bottom surface and the top surface are both horizontal surfaces, and the curved surface 404 is curved toward the side where the second inclined surface 401 is located. A slot 402 is provided on the second inclined surface 401, which is adapted to the protrusion 303 mentioned above.

[0044] When the clamp block 4 is assembled onto the right-angled trapezoidal block 301 of the fixing base 3, the protrusion 303 of the right-angled trapezoidal block 301 is precisely embedded in the slot 402 of the clamp block 4. The protrusion 303 acts as a guide, allowing the clamp block 4 to move only tilted upwards or downwards along the length direction of the protrusion 303. Furthermore, at this time, the second inclined surface 401 of the clamp block 4 is attached to the first inclined surface 306 of the fixing base 3.

[0045] In addition, such as Figure 3 As shown, a vertically arranged second assembly hole 403 is provided on the top of the clamp block 4.

[0046] It should be noted that, for example Figure 2 As shown, the groove 304 has an inner bottom surface that is parallel to the bottom surface of the fixing base 3. The projection of the threaded hole 305 in the vertical direction falls completely onto the inner bottom surface of the groove 304. That is, the length of the inner bottom surface of the groove 304 is greater than the diameter of the threaded hole 305, and the minimum width of the inner bottom surface of the groove 304 is greater than the diameter of the threaded hole 305.

[0047] In addition, such as Figure 2 As shown, the length of the second mounting hole 403 is at least not less than the length of the groove 304, and the width of the second mounting hole 403 is greater than the width of the threaded hole 305.

[0048] In this embodiment, before fixing the sensor, the two T-blocks 2 are first assembled into the same T-slot 104. Then, the two fixing seats 3 are placed on the two T-blocks 2 respectively, so that the through holes 307 on the fixing seats 3 are aligned with the bolt holes on the T-blocks 2. Then, the first locking bolt 5 is inserted into the through hole 307 of the fixing seat 3 and the first locking bolt 5 is turned. Note that at this time, it is not necessary to completely tighten the first locking bolt 5. It is only necessary to ensure that the bottom thread of the first locking bolt 5 is connected to the bolt hole of the T-block 2.

[0049] Next, place the sensor between the two fixed seats 3, and then push the two fixed seats 3 closer together to shorten the distance between the fixed seats 3 and the sensor. After the distance between the two fixed seats 3 is adjusted to a suitable range, tighten the first locking bolt 5. Finally, screw a nut on the bottom end of the first locking bolt 5 and tighten it to fix the fixed seat 3 and the T-block 2 together.

[0050] Then, slide the two clamping blocks 4 onto the two fixed seats 3 respectively. At this time, the protrusion 303 of the right trapezoidal block 301 is just embedded in the slot 402 of the clamping block 4. Then push the clamping block 4 diagonally downward, so that the clamping block 4 moves a certain distance diagonally downward along the protrusion 303, until the projection of the threaded hole 305 on the fixed seat 3 in the vertical direction falls into the second mounting hole 403 of the clamping block 4. That is to say, looking down from above the clamping block 4, you can see the second mounting hole 403. The threaded hole 305 is located below the hole 403; then the bolt is inserted into the second mounting hole 403 of the clamp block 4, so that the bottom end of the bolt enters the threaded hole 305 on the fixing seat 3. Then, the bolt is turned with a tool (such as a wrench) until it cannot be turned. Since the bolt head is pressed against the top surface of the clamp block 4, the bolt gives the clamp block 4 a vertical downward force. Under the action of this pressure, the clamp block 4 moves obliquely downward along the protrusion 303 of the fixing seat 3, so that the two clamp blocks 4 tightly clamp the sensor.

[0051] When disassembling the sensor later, simply loosen the bolts between the clamp block 4 and the fixed base 3, and then loosen the first locking bolt 5 between the fixed base 3 and the T-block 2.

[0052] As can be seen, this sensor fixing mechanism enables simple and quick installation and removal of sensors, and has a good fixing effect on the sensors, making them difficult to detach. It can also be adapted to install most types of sensors, making it widely applicable. In other words, it can be adapted to fix different types of sensors of the same size.

[0053] It should be noted that the clamp block 4 in this embodiment has a curved surface 404. This shape of clamp block 4 can save more material and reduce costs.

[0054] In some embodiments, the projected length of the groove 304 in the vertical direction is three to four times the diameter of the threaded hole 305.

[0055] Optionally, the bolt holes on the T-block 2 are countersunk bolt holes. Countersunk bolt holes typically include countersunk holes and through holes. The through holes are threaded holes, and the countersunk holes are conical or cylindrical pits. The countersunk holes on the T-block 2 are located on the bottom surface of the T-block 2, so that when the nut is tightened, the nut can be completely inserted into the countersunk hole and does not protrude from the bottom surface of the T-block 2.

[0056] It is important to note that elevator inspection and testing often involves extreme testing scenarios, such as high-speed lifting, emergency braking, extreme load operation, and 125% load speed limiter safety clamp linkage tests. In these scenarios, the elevator car and components experience severe vibrations, impacts, and displacements. Previously, data acquisition devices and sensors were often fixed to the elevator using conventional clamps or straps. This method of fixing the devices and sensors to the elevator is prone to loosening, leading to frequent bumps, collisions, and even displacement between the devices and the elevator. This bumping not only introduces additional vibration noise, causing data distortion and affecting the accuracy of parameter analysis, leading to misjudgments or missed detections, but also, due to continuous impacts and collisions, can damage internal components of the data acquisition device, reduce sensor sensitivity, and even cause hardware failures such as loose connections or broken interfaces. This increases equipment maintenance costs and affects the continuity and safety of inspection and testing work.

[0057] When using this elevator testing equipment to install the data acquisition device and sensors with a fixed device:

[0058] Since the data acquisition device is fixed to the base 1 with bolts, and the base 1 is attached to the elevator by strong magnets, this ensures that the data acquisition device will not cause any bumps or collisions relative to the elevator due to loosening.

[0059] In addition, the sensor fixing mechanism can firmly fix the sensor to the side plate 103 of the base 1, which has a good fixation effect and good stability of the sensor, thus avoiding a series of problems caused by poor sensor fixation.

[0060] In summary, compared with traditional fixing methods, using this elevator detection equipment to install the data acquisition device and sensors with a fixed device has at least the following advantages:

[0061] First, the data acquisition device is fixed to the base 1 with bolts, and the base 1 is attached to the elevator with a strong magnet. This effectively solves the problem of the data acquisition device shaking or colliding with the elevator during the test, thereby reducing the risk of data distortion and equipment damage.

[0062] Secondly, the magnetic switch knob can be rotated to quickly switch the adsorption or release state of the base 1, which facilitates the quick adjustment of the installation position of the data acquisition instrument and sensor during testing, simplifies the installation and disassembly process, and meets the high-efficiency operation requirements of inspection and testing scenarios.

[0063] Third, the sensor fixing mechanism enables simple and quick installation and removal of sensors, and has a good fixation effect on the sensors, making them difficult to detach and ensuring their stability. It can also be adapted to install most sensors, making it widely applicable.

[0064] In some embodiments, such as Figure 6 As shown, a strip-shaped hole 105 communicating with a T-slot 104 is provided on the side of the side plate 103 away from the outer casing. The length of the strip-shaped hole 105 is slightly less than the length of the T-slot 104. Furthermore, a screw hole is provided on the side of the T-block 2 facing the strip-shaped hole 105. After fixing the fixing seat 3 to the T-block 2 using the first locking bolt 5, the end of the second locking bolt 6 is passed through the strip-shaped hole 105 and inserted into the screw hole of the T-block 2. Then, the second locking bolt 6 is tightened until the bolt head of the second locking bolt 6 is tightly pressed against the side of the side plate 103. This, in conjunction with the first locking bolt 5, can better fix the T-block 2.

[0065] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device for elevator testing equipment, the elevator testing equipment comprising sensors and a data acquisition instrument, characterized in that, The device includes a base (1), a magnetic switch, and at least one sensor fixing mechanism. The base (1) includes a housing and at least one side plate (103) disposed on the housing. The data acquisition device is mounted on the housing by threaded fasteners. The sensor fixing mechanism is mounted on the side plate (103) for fixing the sensor. The magnetic switch is installed inside the housing, and the knob of the magnetic switch is located outside the housing.

2. The fixing device for elevator testing equipment according to claim 1, characterized in that, At least one T-slot (104) is provided on the side plate (103), and the T-slot (104) extends along the length direction of the side plate (103); The sensor fixing mechanism includes two T-blocks (2), two fixing seats (3), and two clamping blocks (4); the T-blocks (2), the fixing seats (3), and the clamping blocks (4) correspond one-to-one, and the two T-blocks (2) are sequentially assembled in the same T-slot (104) along the length direction of the T-slot (104); The fixing seat (3) has a first end and a second end opposite to each other. The fixing seat (3) has a first inclined surface (306). From the first end to the second end of the fixing seat (3), the distance between the first inclined surface (306) and the bottom surface of the fixing seat (3) gradually increases. A protrusion (303) is integrally formed on the first inclined surface (306). A vertically arranged first mounting hole is provided on the protrusion (303). Both of the fixing seats (3) are fixed to the two T-blocks (2) by the first locking bolt (5) and the nut. The distance between the first ends of the two fixing seats (3) is less than the distance between the second ends of the two fixing seats (3). The clamp block (4) is provided with a second inclined surface (401), and the second inclined surface (401) is provided with a slot (402) that matches the protrusion (303). The top of the clamp block (4) is provided with a vertically arranged second mounting hole (403). The two clamp blocks (4) are respectively mounted on the two fixed seats (3). The clamp block (4) can slide along the length direction of the protrusion (303) of the clamp block (4). The first mounting hole and the second mounting hole (403) are connected by bolts.

3. The fixing device for elevator testing equipment according to claim 2, characterized in that, The fixed base (3) includes a right-angled trapezoidal block (301) and a rectangular plate (302) connected to each other. The bottom surface of the rectangular plate (302) is flush with the bottom surface of the right-angled trapezoidal block (301), and the inclined surface of the right-angled trapezoidal block (301) forms the first inclined surface (306). The width of the rectangular plate (302) is greater than the width of the T-slot (104). The rectangular plate (302) has a through hole (307), and the T-block (2) has a bolt hole corresponding to the through hole (307).

4. The fixing device for elevator testing equipment according to claim 3, characterized in that, The clamp block (4) has a curved surface (404), a bottom surface, a second inclined surface (401) and a top surface connected in sequence. The bottom surface and the top surface are both horizontal surfaces, and the curved surface (404) is bent toward the side where the second inclined surface (401) is located.

5. The fixing device for elevator testing equipment according to claim 4, characterized in that, The first assembly hole includes a communicating groove (304) and a threaded hole (305), wherein the groove (304) is higher than the threaded hole (305), and the projection of the threaded hole (305) in the vertical direction falls completely into the groove (304); The length of the second mounting hole (403) is at least not less than the length of the groove (304).

6. The fixing device for elevator testing equipment according to claim 1, characterized in that, The top surface of the outer casing has four mounting threaded holes (101), and the bottom four corners of the data acquisition instrument have circular holes that correspond one-to-one with the mounting threaded holes (101).

7. A fixing device for elevator testing equipment according to claim 1, characterized in that, The side plate (103) has at least two.

8. A fixing device for elevator testing equipment according to claim 2, characterized in that, The side plate (103) has a strip hole (105) that communicates with the T-slot (104) on its side, and the T-block (2) has a screw hole on the side facing the strip hole (105).

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