Fabricated building assembly clearance monitoring system and method

Abstract

The invention discloses a fabricated building assembly clearance monitoring system and method, and relates to the technical field of building measurement, through the arrangement of a detection mechanism and the arrangement of the same sliding rods on the two sides of the device, the symmetry of left and right measurement structures can be ensured, and when the building assembly clearance is measured, the clearance measurement error caused by single-side stress deflection is avoided, and the measurement accuracy is improved. A graduated scale is arranged below a sliding rod, a gap width value can be directly read, a contact type end is detachably installed at the top end of the sliding rod, a mistaken touch prevention mechanism is automatically triggered after the end is installed, the measurement function can be locked when the end is not installed correctly, mistaken measurement and wrong measurement caused by loosening and not-in-place installation of the end are prevented, and the measurement reliability and safety are improved; the device can adapt to assembly gaps with different widths, the contact type end is always kept to be stably attached to the surface of the component, it is guaranteed that the measurement process is continuous and reliable, and the device is suitable for various assembly scenes.

Description

Technical Field

[0001] This invention relates to the field of building measurement technology, specifically to a system and method for monitoring assembly gaps in prefabricated buildings. Background Technology

[0002] In the assembly and construction of prefabricated building components, doors, windows, curtain walls, etc., the size of the assembly gap directly affects the installation accuracy, structural stability and sealing effect. Most measuring probes are rigid sliding contacts, which can easily scratch the surface of the components and have unstable fit, resulting in poor measurement accuracy. The probes are inconvenient to disassemble and assemble, have weak versatility, and lack anti-accidental contact structures, which can easily lead to invalid measurements due to improper installation.

[0003] Patent publication number CN212133531U relates to the field of building measurement technology, including: a measuring ruler comprising a ruler body, a sliding rod, two sliders, and an elastic element; the outer wall of the ruler body has a scale surface, and the inside of the ruler body has a sliding cavity; the sliding rod is located in the sliding cavity, and both ends of the sliding rod are fixedly connected to the ruler body; one slider is slidably connected to one end of the sliding rod, and the other slider is slidably connected to the other end of the sliding rod; the elastic element elastically connects the sliders and the ruler body; a level ruler is located on the outer wall of the ruler body; two indicating components, each including a bottom shaft, a vertical plate, a top shaft, an indicator, and an insert; a bottom shaft passes through the ruler body and is connected to a slider; both ends of the vertical plate are connected to the bottom shaft and the top shaft respectively; the indicator is connected to the top shaft and points to the scale surface; the insert is located on the side of the vertical plate away from the ruler body, solving the problem of reading errors caused by uneven wall surfaces when measuring wall joints.

[0004] The aforementioned patents have obvious limitations in practice: the probes are inconvenient to install and remove, and the lack of an anti-accidental contact structure leads to inconvenient operation, poor versatility, and a tendency to make false measurements, making it impossible to reliably and stably complete the detection of gaps in building assembly. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a prefabricated building assembly gap monitoring system and method, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated building assembly gap monitoring system, comprising a threaded mounting base, a hollow cylinder mounted on the mounting base, a sliding rod slidably mounted inside the hollow cylinder, a first spring disposed between the hollow cylinder and the sliding rod, and a scale mounted on the sliding rod. The first spring drives the sliding rod to reset. The gap monitoring system further includes: a detection mechanism mounted on the sliding rod, employing a contact measuring head for timely gap monitoring; the measuring head being quick to install and remove, and equipped with anti-accidental contact features during installation; a locking mechanism mounted on the mounting base, which mechanically limits the position of the sliding rod after measurement and is self-locking, ensuring stable readings; and an alarm mechanism mounted on the hollow cylinder, which triggers an alarm when the sliding rod reaches its maximum stroke, and features two adjustable alarm levels to improve the device's versatility.

[0007] In this embodiment, by setting identical sliding rods on both sides of the device, the left and right measuring structures can be symmetrical. The gap is detected by a detection mechanism, and the detection method is set to physical contact detection. The sliding rod can be locked by a locking mechanism when it moves, and the operator is notified in real time by triggering an alarm mechanism when the sliding rod moves.

[0008] According to the above technical solution, the detection mechanism includes an end detachably mounted on a slide rod, a ball bearing mounted on the end, a slot formed on the end, a hollow block mounted on the slide rod, a pin slidably mounted in the hollow block, a release button mounted on the pin, and a locking rod rotatably mounted on the slide rod; the contact surface between the pin and the end is set as an inclined surface; a second spring is provided between the pin and the hollow block; the release button is adapted to the slot of the locking rod, and the release button and the locking rod are detachably connected through elastic deformation and spring-back engagement; a torsion spring is provided between the locking rod and the slide rod, and the locking rod is reset by the torsion spring.

[0009] In this embodiment, during end-end installation, the outer wall of the end-end first contacts the inclined surface of the pin, causing the pin to slide along the inner wall of the hollow block under force, while simultaneously compressing the second spring. When the slot on the end-end overlaps with the pin, the second spring resets and simultaneously drives the pin to reset, allowing the pin to insert into the slot and limit the position of the end-end. After the end-end is installed, the locking rod is rotated and connected to the release button through elastic deformation and rebound, so that the anti-accidental contact mechanism is automatically triggered after the end-end is installed. When disassembling the end-end, the connection between the locking rod and the release button is first released, and then the release button is pulled upward, causing the release button to move the pin upward. At this time, the pin disengages from the slot, and the limitation of the end-end is released.

[0010] According to the above technical solution, the locking mechanism includes a sliding button mounted on the slide rod, a traction rod mounted on the sliding button, and a friction seat mounted on the mounting base; the friction seat is in contact with the traction rod.

[0011] In this embodiment, the friction seat can reduce the moving speed of the traction rod.

[0012] According to the above technical solution, the locking mechanism further includes a threaded rod rotatably mounted on the mounting base, a sliding frame threaded onto the threaded rod, and a lower pressure sleeve mounted on the sliding frame; the sliding frame has a groove that matches the threaded rod; the lower pressure sleeve has a groove that is the same as the friction seat.

[0013] In this embodiment, after the measurement is completed, the threaded rod is rotated, causing the sliding frame to move downward. The movement of the sliding frame drives the lower pressure sleeve to move, making it contact the traction rod. The movement of the traction rod can be forcibly restricted by the mutual clamping of the lower pressure sleeve and the friction seat.

[0014] According to the above technical solution, the locking mechanism further includes a mounting bracket mounted on the threaded rod, a toothed ring mounted on the threaded rod, a limiting ring sleeved on the mounting bracket, a No. 3 spring disposed between the limiting ring and the mounting bracket, and a stress groove formed on the sliding button; the toothed ring matches the groove formed on the limiting ring.

[0015] In this embodiment, when the threaded rod rotates, it synchronously drives the toothed ring to rotate, causing the toothed ring to contact the limiting ring. The inclined surfaces of the two contact each other, causing the limiting ring to move upward along the mounting bracket while compressing the No. 3 spring. When the threaded rod rotates in the opposite direction, the non-inclined surfaces of the two contact each other, preventing the limiting ring from moving.

[0016] According to the above technical solution, the alarm mechanism includes a connecting seat installed on the hollow cylinder, a fixed buzzer installed on the connecting seat, and a final round button slidably installed in the connecting seat; a No. 4 spring is provided between the final round button and the connecting seat, and the final round button is reset by the No. 4 spring; the final round button matches the groove opened in the stress groove.

[0017] In this embodiment, when the sliding button reaches the designed maximum travel position, the stress groove contacts the final circle button, causing the fourth spring to reset and drive the final circle button to lock into the stress groove, forcibly restricting the slide rod from continuing to extend outward. At the same time, the fixed buzzer is triggered to remind the operator that the maximum measurement distance has been reached.

[0018] According to the above technical solution, the alarm mechanism further includes a lead screw mounted on a hollow cylinder, a drive block mounted on the lead screw, a socket button sleeved on the lead screw, and a socket groove formed on the socket button; the groove formed in the socket groove matches the drive block.

[0019] In this embodiment, by pressing the socket button to engage the socket slot with the drive block, and then rotating the socket button, the socket button drives the drive block to rotate, and the rotation of the drive block drives the lead screw to rotate.

[0020] According to the above technical solution, the alarm mechanism further includes an adjusting seat threaded onto a lead screw, a follower buzzer mounted on the adjusting seat, and a movable knob slidably mounted on the adjusting seat.

[0021] In this embodiment, the position of the dynamic alarm mechanism can be precisely adjusted by the lead screw, and the warning trigger point can be freely changed.

[0022] According to the above technical solution, the adjusting seat is provided with a groove that matches the lead screw, and a No. 5 spring is provided between the moving knob and the adjusting seat.

[0023] In this embodiment, the moving knob is reset by using a No. 5 spring.

[0024] Furthermore, this invention also provides an operation method for a prefabricated building assembly gap monitoring system, which uses the aforementioned prefabricated building assembly gap monitoring system and includes the following steps:

[0025] Step 1: Install the device using the mounting base. The initial state of the slide bar is set to extended, that is, the maximum movement distance in the hollow cylinder, and the No. 1 spring is stretched. Identical slide bars are set on both sides of the device to ensure the symmetry of the left and right measuring structures. A scale is set below the slide bar to directly read the gap width value.

[0026] Step 2: A contact end is detachably installed at the top of the slide rod, and multiple contact ball bearings are installed on the end, so that the friction between the end and the surface of the building component changes from sliding friction to rolling friction. After the end is installed, the locking rod is rotated and connected to the release button through elastic deformation and rebound, so that the anti-accidental touch mechanism is automatically triggered after the end is installed.

[0027] Step 3: When disassembling the end, first disconnect the locking rod from the release button, then pull the release button upwards to make the release button drive the pin out of the slot. At this time, the end is released, making it easy to replace the fitting end according to different component shapes and gap sizes, improving the device's versatility and maintenance efficiency.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. In this invention, the detection mechanism, with identical sliding rods on both sides of the device, ensures symmetry of the left and right measurement structures. When measuring gaps in building assembly, the force on both sides is uniform and the measurement direction is stable, avoiding measurement errors caused by unilateral force deviation. A scale is installed below the sliding rods, allowing direct reading of the gap width value, enabling intuitive, fast, and on-site readable gap measurement. A contact end is detachably installed at the top of the sliding rod, and an anti-misoperation mechanism is automatically triggered after the end is installed. This locks the measurement function if not installed correctly, preventing mismeasurement or incorrect measurement due to loose or improperly installed end, thus improving measurement reliability and safety. This device can adapt to assembly gaps of different widths, always maintaining a stable fit between the contact end and the component surface, ensuring a continuous and reliable measurement process, and is suitable for various assembly scenarios.

[0030] 2. In this invention, the locking mechanism ensures that the measured dimensions will not change due to loosening, shaking, or rebound after measurement, and the reading remains stable. It also mechanically locks the scale position, making it convenient to read and record the measurement after leaving the measurement site. The reading can be taken from a location with good lighting and easy observation outside the gap, instead of taking the reading on-site in a narrow, dangerous, or poorly oriented assembly gap. Furthermore, the anti-reverse rotation effect on the threaded rod prevents it from rotating in the opposite direction during force, vibration, or adjustment, ensuring that the adjustment position, measured dimensions, or locking state remain constant and secure.

[0031] 3. In this invention, the alarm mechanism enables a fixed limit alarm at the maximum movement distance, and the dynamic alarm mechanism can be adjusted by a screw to set multiple different alarm thresholds within the same warning level, meeting the measurement needs of various gap ranges. It can be adapted to different measurement scenarios without changing parts. The position of the dynamic alarm mechanism can be precisely adjusted by the screw, and the warning trigger point can be freely changed, so that one device can be adapted to the detection of building assembly gaps with various width ranges, thus expanding the scope of application. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure at the location of the stress groove and the hollow cylinder in this invention;

[0034] Figure 3 This is a schematic diagram of the structure at the position of the slide bar and the end of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure at the pin and end position of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure at the location of the threaded rod and the mounting base of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure at the position of the traction rod and the sliding frame of the present invention;

[0038] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of section A of the structure;

[0039] Figure 8 This is a schematic diagram of the structure at the position of the lead screw and the connecting seat of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure at the location of the socket groove and the drive block of the present invention.

[0041] The meanings of the labels in the diagram are as follows:

[0042] 1. Mounting base; 2. Hollow cylinder; 3. Slide rod; 4. No. 1 spring; 5. Scale; 10. End; 11. Ball bearing; 12. Slot; 13. Hollow block; 14. Pin; 15. Release button; 16. Connecting rod; 20. Sliding button; 21. Traction rod; 22. Friction seat; 23. Threaded rod; 24. Sliding frame; 25. Lower pressure sleeve; 26. Mounting frame; 27. Toothed ring; 28. Limiting ring; 29. ​​No. 3 spring; 210. Stress groove; 30. Connecting seat; 31. Fixed buzzer; 32. End round button; 33. Lead screw; 34. Drive block; 35. Socket button; 36. Socket groove; 37. Adjusting seat; 38. Follow-up buzzer; 39. Moving round button. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1:

[0045] Please see Figures 1-9One embodiment of the present invention is a prefabricated building assembly gap monitoring system, including a threaded mounting base 1, a hollow cylinder 2 mounted on the mounting base 1, a slide rod 3 slidably mounted inside the hollow cylinder 2, a first spring 4 disposed between the hollow cylinder 2 and the slide rod 3, and a scale 5 mounted on the slide rod 3. The slide rod 3 is reset by the first spring 4. The gap monitoring system also includes: a detection mechanism mounted on the slide rod 3, which uses a contact measuring head to monitor the gap in a timely manner, and the measuring head can be quickly installed and removed and is designed to prevent accidental contact during installation; a locking mechanism mounted on the mounting base 1, which can mechanically limit the position of the slide rod 3 after measurement and is self-locking, so that the reading remains stable; and an alarm mechanism mounted on the hollow cylinder 2, which alarms when the slide rod 3 reaches its maximum stroke, and is equipped with two adjustable alarm levels to improve the versatility of the device.

[0046] In this embodiment, it can adapt to assembly gaps of different widths, always keeping the contact end 10 in stable contact with the component surface, ensuring a continuous and reliable measurement process, and is suitable for various assembly scenarios. The locking mechanism ensures that the measured dimensions will not change due to release, shaking, or rebound after the measurement is completed, and the reading remains stable. The alarm mechanism enables a fixed limit alarm at the maximum movement distance, and the dynamic alarm mechanism can be adjusted by the lead screw 33 to set multiple different alarm thresholds within the same warning level.

[0047] The testing mechanism includes an end 10 detachably mounted on the slide rod 3, a ball bearing 11 mounted on the end 10, a slot 12 formed on the end 10, a hollow block 13 mounted on the slide rod 3, a pin 14 slidably mounted in the hollow block 13, a release button 15 mounted on the pin 14, and a locking rod 16 rotatably mounted on the slide rod 3. The contact surface between the pin 14 and the end 10 is set as an inclined surface. A second spring is provided between the pin 14 and the hollow block 13, and the pin 14 is reset by the second spring. The release button 15 is adapted to the slot of the locking rod 16, and the release button 15 and the locking rod 16 are detachably connected by elastic deformation and spring-back engagement. A torsion spring is provided between the locking rod 16 and the slide rod 3, and the locking rod 16 is reset by the torsion spring.

[0048] In this embodiment, the end cap 10 can be quickly installed and removed, making it easy to replace the adapter end cap 10 according to different component shapes and gap sizes, thereby improving the versatility and maintenance efficiency of the device.

[0049] The locking mechanism includes a sliding button 20 mounted on the slide bar 3, a traction rod 21 mounted on the sliding button 20, and a friction seat 22 mounted on the mounting base 1; the friction seat 22 is in contact with the traction rod 21.

[0050] In this embodiment, the two traction rods 21 are configured to be sleeved together so that they do not interfere with each other's movement.

[0051] The locking mechanism also includes a threaded rod 23 rotatably mounted on the mounting base 1, a sliding frame 24 threadedly mounted on the threaded rod 23, and a lower pressure sleeve 25 mounted on the sliding frame 24; the sliding frame 24 has a groove that matches the threaded rod 23; the lower pressure sleeve 25 has a groove that is the same as the friction seat 22.

[0052] In this embodiment, the scale 5 position is mechanically locked, making it convenient to read and record the measurement after leaving the measurement site. The reading can be taken from outside the gap, in a well-lit and easily observable position, without having to read the measurement on-site in a narrow, dangerous assembly gap with poor visibility.

[0053] The locking mechanism also includes a mounting bracket 26 mounted on the threaded rod 23, a toothed ring 27 mounted on the threaded rod 23, a limiting ring 28 sleeved on the mounting bracket 26, a third spring 29 disposed between the mounting bracket 26 and the limiting ring 28, and a stress groove 210 formed on the sliding button 20. The third spring 29 is used to drive the limiting ring 28 to reset. The toothed ring 27 matches the groove formed on the limiting ring 28.

[0054] In this embodiment, the threaded rod 23 can be prevented from rotating in the opposite direction during force, vibration or adjustment, ensuring that the adjustment position, measurement size or locking state remains constant and does not loosen.

[0055] The alarm mechanism includes a connecting seat 30 mounted on the hollow cylinder 2, a fixed buzzer 31 mounted on the connecting seat 30, and a final round button 32 slidably mounted in the connecting seat 30; a No. 4 spring is provided between the final round button 32 and the connecting seat 30, and the final round button 32 is reset by the No. 4 spring; the final round button 32 matches the groove opened in the stress groove 210.

[0056] In this embodiment, a self-locking protection is implemented at the end of the stroke to prevent the slide bar 3 from being pulled beyond its stroke, prevent the structure from detaching, and simultaneously indicate to the operator that the maximum measurement distance has been reached.

[0057] The alarm mechanism also includes a lead screw 33 mounted on the hollow cylinder 2, a drive block 34 mounted on the lead screw 33, a socket button 35 sleeved on the lead screw 33, and a socket groove 36 opened on the socket button 35; the groove of the socket groove 36 matches the drive block 34.

[0058] In this embodiment, the lead screw 33 can only be adjusted after a specified second unlocking action is completed, which structurally avoids accidental adjustment and improves the reliability of the device.

[0059] The alarm mechanism also includes an adjusting seat 37 threaded onto the lead screw 33, a follow-up buzzer 38 mounted on the adjusting seat 37, and a movable knob 39 slidably mounted on the adjusting seat 37.

[0060] In this embodiment, a fixed limit alarm can be triggered at the maximum travel distance, while the dynamic alarm mechanism can be adjusted via the lead screw 33 to set multiple different alarm thresholds within the same warning level, thus meeting the measurement requirements of various gap ranges.

[0061] The adjusting seat 37 has a groove that matches the lead screw 33, and a No. 5 spring is provided between the moving knob 39 and the adjusting seat 37.

[0062] In this embodiment, the moving knob 39 is reset by the No. 5 spring.

[0063] Based on Example 1, this example uses the monitoring system of Example 1. The operation method of the prefabricated building assembly gap monitoring system provided in this example includes the following steps:

[0064] Step 1: Install the device using mounting base 1. The initial state of the slide bar 3 is set to extended, that is, the maximum moving distance in the hollow cylinder 2, and the first spring 4 is stretched. The same slide bar 3 is set on both sides of the device to ensure the symmetry of the left and right measuring structures. A scale 5 is set below the slide bar 3 to directly read the gap width value.

[0065] Step 2: A contact end 10 is detachably installed at the top of the slide bar 3, and multiple contact ball bearings 11 are installed on the end 10, so that the sliding friction between the end 10 and the surface of the building component is changed from sliding friction to rolling friction. After the end 10 is installed, the locking rod 16 is rotated and connected to the release button 15 through elastic deformation and rebound, so that the anti-accidental touch mechanism is automatically triggered after the end 10 is installed.

[0066] Step 3: When disassembling end 10, first disconnect the connection between the locking rod 16 and the release button 15, then pull the release button 15 upwards so that the release button 15 drives the pin 14 to disengage from the slot 12. At this time, the limit of end 10 is released, making it easy to replace the adapter end 10 according to different component shapes and gap sizes, thereby improving the versatility of the device and maintenance efficiency.

[0067] In this embodiment, the device is installed via mounting base 1. The initial state of the slide rod 3 is set to extended, i.e., at its maximum movement distance within the hollow cylinder 2, and it is stretched by spring 4. Identical slide rods 3 are installed on both sides of the device to ensure symmetry of the left and right measurement structures. When measuring gaps in building assembly, the force is evenly distributed on both sides, and the measurement direction is stable, avoiding gap measurement errors caused by unilateral force deviation. A scale 5 is installed below the slide rod 3, allowing direct reading of the gap width value without additional adapters or calculations, achieving intuitive, fast, and on-site readable gap measurement. The measuring rod 3 has a detachable contact end 10 at its top, with multiple contact ball bearings 11 mounted on it. This changes the friction between the end 10 and the building component surface from sliding friction to rolling friction. This reduces resistance and prevents scratching the component surface when moving along the gap for detection or fine-tuning, while ensuring stable contact and accurate measurement. During installation, the end 10's outer wall first contacts the inclined surface of the pin 14, causing the pin 14 to slide along the inner wall of the hollow block 13 under pressure, simultaneously compressing the second spring. When the end 10... When the slot 12 and pin 14 overlap, the second spring resets and simultaneously drives the pin 14 to reset, allowing the pin 14 to insert into the slot 12 and limit the position of the end 10. After the end 10 is installed, rotating the locking rod 16 connects it to the release button 15 through elastic deformation and rebound, automatically triggering the anti-misoperation mechanism after the end 10 is installed. This locks the measurement function even if the end 10 is not installed correctly, preventing mismeasurements or incorrect measurements due to loose or improper installation of the end 10, thus improving measurement reliability and safety. When the end 10 is disassembled... First, disconnect the locking rod 16 from the release button 15. Then, pull the release button 15 upwards, causing the release button 15 to move the pin 14 upwards. At this time, the pin 14 disengages from the slot 12, and the limit of the end head 10 is released. This allows for easy replacement of the fitting end head 10 according to different component shapes and gap sizes, improving the versatility and maintenance efficiency of the device. In summary, this device can adapt to assembly gaps of different widths, always maintaining a stable fit between the contact end head 10 and the component surface, ensuring continuous and reliable measurement, and is suitable for various assembly scenarios.

[0068] Example 2:

[0069] Please see Figures 1-9 Based on the above embodiments, in another embodiment of the present invention, the prefabricated building assembly gap monitoring system further includes a locking mechanism.

[0070] In this embodiment, as the slide rod 3 moves, it drives the sliding button 20 to move as well. The movement of the sliding button 20 drives the traction rod 21 to move synchronously. The two traction rods 21 are sleeved together to prevent them from interfering with each other's movement. The traction rod 21 moves along the friction seat 22, but the friction seat 22 is not enough to stop the traction rod 21; it only reduces the moving speed of the traction rod 21. After the measurement is completed, the threaded rod 23 is rotated, causing the slide frame 24 to move downwards. The movement of the slide frame 24 drives the lower pressure sleeve 25 to move, making it contact with the traction rod 21. The mutual clamping of the lower pressure sleeve 25 and the friction seat 22 can forcibly restrict the movement of the traction rod 21, that is, mechanically limit the position of the slide rod 3. This ensures that after the measurement is completed, the measured dimension will not change due to release, shaking, or rebound, and the reading remains stable. At the same time, it also ensures that the engraving... The 5th position of the ruler is mechanically locked, facilitating reading and recording after leaving the measurement site. Readings can be taken from a well-lit and easily observable location outside the gap, eliminating the need for on-site readings in narrow, dangerous, or poorly oriented assembly gaps. When the threaded rod 23 rotates, it simultaneously drives the toothed ring 27 to rotate, causing the toothed ring 27 to contact the limiting ring 28. The inclined surfaces of both contact each other, causing the limiting ring 28 to move upward along the mounting bracket 26 while compressing the No. 3 spring 29. When the threaded rod 23 rotates in the opposite direction, the non-inclined surfaces of both contact each other, preventing the limiting ring 28 from moving. In other words, the limiting ring 28 restricts the reverse rotation of the toothed ring 27, thus preventing the threaded rod 23 from reversing during stress, vibration, or adjustment, ensuring that the adjustment position, measurement size, or locking state remains constant and secure.

[0071] Example 3:

[0072] Please see Figures 1-9 Based on the above embodiments, in another embodiment of the present invention, the prefabricated building assembly gap monitoring system further includes an alarm mechanism.

[0073] In this embodiment, when the sliding button 20 reaches its designed maximum stroke position, it moves along the inner wall of the connecting seat 30 after contacting the end-round button 32, compressing the fourth spring. When the stress groove 210 contacts the end-round button 32, the fourth spring resets, causing the end-round button 32 to engage in the stress groove 210, forcibly restricting the slide rod 3 from extending further, achieving self-locking protection at the end of the stroke, preventing the slide rod 3 from being pulled beyond its stroke, and preventing the structure from detaching. The spring force of the fourth spring is set lower than that of the first spring 4 to prevent the self-locking mechanism from continuously pressing against the sliding button 20, causing high resistance, jamming, inaccurate measurement, or even inability to move normally. When the end-round button 32 moves, it contacts the button of the fixed buzzer 31, triggering the fixed buzzer 31 to alert the operator that the maximum measurement distance has been reached. Within the stroke of the sliding button 20, an adjustable multi-level alarm mechanism is provided. Specifically, pressing the socket button 35 causes the socket 3... After the drive block 34 is engaged, the socket button 35 is rotated, causing the socket button 35 to drive the drive block 34 to rotate. The rotation of the drive block 34 drives the lead screw 33 to rotate, so that the lead screw 33 can only be adjusted after a specified second unlocking action is completed. This structurally avoids accidental adjustment and improves the reliability of the device. The rotation of the lead screw 33 drives the adjustment seat 37 to move. The movement of the adjustment seat 37 drives the follow-up buzzer 38 and the moving knob 39 to move. The triggering method is the same as that of the fixed buzzer 31 mentioned above, which allows for a fixed limit alarm at the maximum movement distance. The dynamic alarm mechanism can also be adjusted by the lead screw 33. Multiple different alarm thresholds can be set within the same warning level to meet the measurement needs of various gap ranges. It can be adapted to different measurement scenarios without changing parts. The position of the dynamic alarm mechanism can be precisely adjusted by the lead screw 33, and the warning trigger point can be freely changed. This allows one device to be adapted to the detection of building assembly gaps with various width ranges, thus expanding the scope of application.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building assembly gap monitoring system, comprising a threaded mounting base (1), a hollow cylinder (2) mounted on the mounting base (1), a sliding rod (3) slidably mounted inside the hollow cylinder (2), a first spring (4) disposed between the hollow cylinder (2) and the sliding rod (3), and a scale (5) mounted on the sliding rod (3), characterized in that, The gap monitoring system also includes: The detection mechanism is installed on the slide bar (3) and uses a contact measuring head to monitor the gap in a timely manner. The measuring head can be quickly installed and removed and is designed to prevent accidental contact during installation. The locking mechanism is installed on the mounting base (1). After the measurement is completed, the position of the slide rod (3) can be mechanically limited and it can be self-locked, so that the reading remains stable. An alarm mechanism is installed on the hollow cylinder (2) and triggers an alarm when the slide bar (3) reaches its maximum stroke. Two adjustable alarm levels are provided to improve the versatility of the device.

2. The prefabricated building assembly gap monitoring system according to claim 1, characterized in that: The detection mechanism includes an end (10) detachably mounted on the slide rod (3), a ball bearing (11) mounted on the end (10), a slot (12) opened on the end (10), a hollow block (13) mounted on the slide rod (3), a pin (14) slidably mounted in the hollow block (13), a release button (15) mounted on the pin (14), and a locking rod (16) rotatably mounted on the slide rod (3). The contact surface between the pin (14) and the end (10) is set as an inclined surface; A second spring is provided between the pin (14) and the hollow block (13); The release button (15) is adapted to the groove of the locking rod (16), and the release button (15) and the locking rod (16) are detachably connected through elastic deformation and spring-back locking. A torsion spring is provided between the snap-fit ​​rod (16) and the slide rod (3).

3. The prefabricated building assembly gap monitoring system according to claim 1, characterized in that: The locking mechanism includes a sliding button (20) mounted on the slide bar (3), a traction rod (21) mounted on the sliding button (20), and a friction seat (22) mounted on the mounting base (1). The friction seat (22) is in contact with the traction rod (21).

4. The prefabricated building assembly gap monitoring system according to claim 1, characterized in that: The locking mechanism further includes a threaded rod (23) rotatably mounted on the mounting base (1), a sliding bracket (24) threadedly mounted on the threaded rod (23), and a lower pressure sleeve (25) mounted on the sliding bracket (24). The sliding frame (24) has a groove that matches the threaded rod (23); The lower pressure sleeve (25) has a groove that is the same as that of the friction seat (22).

5. The prefabricated building assembly gap monitoring system according to claim 4, characterized in that: The locking mechanism also includes a mounting bracket (26) mounted on the threaded rod (23), a toothed ring (27) mounted on the threaded rod (23), a limiting ring (28) sleeved on the mounting bracket (26), a No. 3 spring (29) disposed between the mounting bracket (26) and the limiting ring (28), and a stress groove (210) formed on the sliding button (20). The toothed ring (27) matches the groove opened in the limiting ring (28).

6. The prefabricated building assembly gap monitoring system according to claim 1, characterized in that: The alarm mechanism includes a connecting seat (30) mounted on the hollow cylinder (2), a fixed buzzer (31) mounted on the connecting seat (30), and a terminal knob (32) slidably mounted in the connecting seat (30). A No. 4 spring is provided between the final round button (32) and the connecting seat (30); The end round button (32) matches the groove opened in the stress groove (210).

7. The prefabricated building assembly gap monitoring system according to claim 1, characterized in that: The alarm mechanism also includes a lead screw (33) mounted on the hollow cylinder (2), a drive block (34) mounted on the lead screw (33), a socket button (35) sleeved on the lead screw (33), and a socket groove (36) opened on the socket button (35). The slot of the socket (36) is matched with the drive block (34).

8. The prefabricated building assembly gap monitoring system according to claim 7, characterized in that: The alarm mechanism also includes an adjustment seat (37) threaded onto a lead screw (33), a follow-up buzzer (38) mounted on the adjustment seat (37), and a movable knob (39) slidably mounted on the adjustment seat (37).

9. The prefabricated building assembly gap monitoring system according to claim 8, characterized in that: The adjusting seat (37) has a groove that matches the lead screw (33), and a No. 5 spring is provided between the moving knob (39) and the adjusting seat (37).

10. The operation method of the prefabricated building assembly gap monitoring system, characterized in that, The prefabricated building assembly gap monitoring system according to any one of claims 1-9 includes the following steps: Step 1: Install the device using the mounting base (1). The initial state of the slide bar (3) is set to extended, that is, the maximum moving distance in the hollow cylinder (2), and the No. 1 spring (4) is stretched. The same slide bar (3) is set on both sides of the device to ensure that the left and right measuring structures are symmetrical. A scale (5) is set below the slide bar (3) so that the gap width value can be read directly. Step 2: A contact end (10) is detachably installed at the top of the slide bar (3), and multiple contact ball bearings (11) are installed on the end (10) to change the sliding friction between the end (10) and the surface of the building component from sliding friction to rolling friction. After the end (10) is installed, the locking rod (16) is rotated to make it connect with the release button (15) through elastic deformation and rebound, so that the anti-accidental touch mechanism is automatically triggered after the end (10) is installed. Step 3: When disassembling the end (10), first disconnect the connection between the locking rod (16) and the release button (15), then pull the release button (15) upwards so that the release button (15) drives the pin (14) to disengage from the slot (12). At this time, the limit of the end (10) is released, which makes it easier to replace the suitable end (10) according to different component shapes and gap sizes, thereby improving the versatility of the device and maintenance efficiency.

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