A housing construction monitoring auxiliary device

Abstract

The application provides a housing construction monitoring auxiliary device, which comprises a shell with an inner cavity, a pendulum and a scale dial in the shell; the pendulum comprises a swing rod, one end of the swing rod is provided with a weight body, the other end is rotationally connected with the shell and can freely swing left and right under the action of gravity; the scale dial is arranged on the rear sidewall of the shell, the center of the scale arc surface of the scale dial is located on the rotation axis of the pendulum, a transparent observation part is arranged on the front sidewall of the shell; an optical aligner is arranged on the pendulum, the optical aligner comprises a forwardly protruding spherical lens and a positioning mark line arranged on the spherical surface of the spherical lens, the central axis of the spherical lens intersects with the axis of the swing rod, and the positioning mark line is aligned with the axis of the swing rod front and back; the optical aligner corresponds to the scale front and back on the scale dial, and the scale behind can be observed through the spherical lens. The device can correct the line of sight through the optical aligner, so that the reading error caused by the line of sight deviation is eliminated, and the accuracy of the reading is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of building tilt detection technology, specifically to an auxiliary device for building monitoring. Background Technology

[0002] In the fields of civil engineering and building monitoring, inclinometers are essential tools for measuring the tilt angle of structures. Although some electronic inclinometers exist on the market, they are expensive and dependent on power supplies and electronic components. Their reliability and durability in harsh construction environments are sometimes insufficient. Therefore, mechanical inclinometers are still widely used. Currently, most commonly used inclinometers employ a suspension line to suspend a plumb bob. The tilt angle is read by observing the projection position of the suspension line on a scale when the plumb bob is stationary. For example, patent CN215930919U discloses an inclinometer device that measures the tilt angle of a building through the cooperation of an angle dial on the outer wall of one end of a long ruler, a retractable suspension rope, and a cone. Although this structure is simple, it requires the line of sight to be strictly aligned with the scale and the suspension line during observation; otherwise, parallax will occur, which is difficult to guarantee in practical applications, resulting in reading errors. In addition, when encountering windy weather outdoors or in high-vibration environments (such as buildings, bridges, tunnels, and construction sites near major traffic arteries), the suspension line structure is prone to swaying, leading to unreadable readings or significant errors. Furthermore, the swing sensitivity of traditional plumb bobs is fixed and cannot be adjusted according to different measurement environments, such as static measurements requiring high precision or dynamic measurements requiring fast and stable operation, thus limiting their applicability. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a building monitoring auxiliary device.

[0004] The technical solution of this utility model is as follows: A building monitoring auxiliary device includes a housing with an inner cavity and a pendulum and a scale located inside the housing; The pendulum includes a pendulum rod, one end of which is equipped with a weight, and the other end is rotatably connected to the housing, and can swing freely left and right under the action of gravity; The scale is located on the rear side wall of the housing, and the center of its scale arc is located on the rotation axis of the pendulum. A transparent observation section is provided on the front side wall of the housing. The pendulum is equipped with an optical aligner, which includes a forward-protruding spherical lens and alignment marks on the spherical surface of the spherical lens. The central axis of the spherical lens intersects with the axis of the pendulum rod, and the alignment marks are aligned with the axis of the pendulum rod front and back. The optical aligner corresponds to the scale on the dial, and the rear scale can be observed through a spherical lens.

[0005] Preferably, the optical aligner is fixed to the lever.

[0006] Preferably, the alignment marks are set on the spherical surface of the spherical lens by etching or printing.

[0007] Preferably, the counterweight body is provided with a counterweight mounting structure, and is configured to allow at least one counterweight block to be detachably mounted.

[0008] Furthermore, it includes an even number of counterweights of equal weight, and the counterweight mounting structure includes multiple mounting positions symmetrically arranged on the counterweight body.

[0009] Furthermore, the pendulum's weight body is a plate-shaped structure with its plate surface parallel to the plane of the dial. The mounting position is a first strip-shaped groove opened on the edge of the weight body. The counterweight is plate-shaped with a second strip-shaped groove that engages with the first strip-shaped groove. When the counterweight is installed on the weight body, the plate surface of the counterweight is parallel to the pendulum rod and extends back and forth.

[0010] Preferably, a rotating shaft is provided at the upper part of the inner cavity of the housing, and a collar is provided at the end of the pendulum away from the weight body. The pendulum is rotatably connected to the housing by the collar being sleeved on the rotating shaft.

[0011] Furthermore, the rotating shaft is provided with an annular limiting groove, and the shaft collar is axially limited within the annular limiting groove. The inner diameter of the shaft collar is greater than the bottom diameter of the annular limiting groove and less than the diameter of the rotating shaft.

[0012] Preferably, the housing is provided with a level indicator, which is configured to indicate the horizontal state of the housing in the front-back direction.

[0013] Preferably, the housing is also provided with an accessory storage compartment for storing counterweights.

[0014] This utility model provides an auxiliary device for monitoring building structures, which includes an optical aligner on a pendulum. The optical aligner consists of a spherical lens and alignment marks. During observation, the magnified scale is viewed through the spherical lens. Only when the observer's line of sight is precisely perpendicular to the plane of the scale will the alignment marks visually and precisely coincide with a certain scale line, forcing the observer to find the correct observation angle without parallax. This eliminates reading errors caused by line-of-sight deviation, significantly improving the accuracy of readings and consistency between different operators. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the device of this utility model; Figure 2 This is a side sectional view of the device of this utility model; Figure 3 This is a disassembled assembly diagram of the pendulum, optical aligner, and counterweight.

[0016] The components represented by the various reference numerals in the diagram are: 1. Housing; 11. Transparent observation section; 12. Top cover; 2. Pendulum; 21. Pendulum rod; 22. Weight body; 221. First strip-shaped slot; 23. Collar; 3. Optical aligner; 31. Spherical lens; 32. Alignment mark; 4. Dial; 5. Rotating shaft; 6. Counterweight; 61. Second strip-shaped slot; 7. Horizontal indicator; 8. Accessory storage compartment. Detailed Implementation

[0017] like Figures 1 to 3 As shown, this utility model provides a building monitoring auxiliary device, including a housing 1 with an inner cavity and a pendulum 2 and a dial 4 located inside the housing 1.

[0018] The pendulum 2 includes a pendulum rod 21, one end of which is provided with a weight body 22, and the other end is rotatably connected to the housing 1, and can swing freely left and right under the action of gravity.

[0019] The dial 4 is located on the rear side wall of the housing 1, and the center of its scale arc is located on the rotation axis of the pendulum 2. A transparent observation section 11 is provided on the front side wall of the housing 1.

[0020] The pendulum 2 is equipped with an optical aligner 3, which includes a forward-protruding spherical lens 31 and an alignment mark 32 on the spherical surface of the spherical lens 31. The central axis of the spherical lens 31 intersects with the axis of the pendulum 21, and the alignment mark 32 is aligned with the axis of the pendulum 21.

[0021] The optical aligner 3 corresponds to the scale on the dial 4, and the rear scale can be observed through the spherical lens 31.

[0022] During observation, the magnified scale 4 is viewed through the spherical lens 31. Only when the observer's line of sight is adjusted to be exactly perpendicular to the plane of the scale 4 will the alignment line 32 visually and precisely coincide with a certain scale line. Otherwise, not only will the scale line be unclear, but it will also appear as a curve instead of a straight line and will not coincide with the alignment line 32. This design forces the observer to find the correct observation angle without parallax, thereby eliminating the reading error caused by line of sight deviation, greatly improving the accuracy of the reading and the consistency between different operators.

[0023] The specific structure is described in detail below: The housing 1 is a flat rectangular body with an internal rectangular cavity for accommodating the pendulum 2 and the dial 4. A transparent observation section 11 is provided on the front sidewall of the housing 1 for observing the pendulum 2 and the dial 4. In this embodiment, the housing 1 is entirely made of transparent acrylic material, with the transparent observation section 11 directly formed on its front sidewall.

[0024] With the thickness direction of the housing 1 as the front-to-back direction, the top wall of the housing 1 is a removable cover 12, which can be detached by screws or direct snap-fit, facilitating the assembly and maintenance of the internal structure. A dial 4 is fixedly mounted on the inner side of the rear wall of the housing 1. In this embodiment, the dial 4 is a semi-circular waterproof sticker with precisely printed graduations from -90° to +90°, with the 0° graduation located directly below. The center of the graduated arc coincides with the rotation center of the pendulum 2.

[0025] A rotating shaft 5 is provided in the upper part of the inner cavity of the housing 1, and the axis of the rotating shaft 5 extends along the front-rear direction of the housing 1. Figure 2 As shown, the rotating shaft 5 is provided with a ring-shaped limiting groove.

[0026] One end of the pendulum 21 is connected to the weight body 22, and the other end is equipped with a collar 23. The pendulum 2 is rotatably connected to the housing 1 by being fitted onto the rotating shaft 5 via the collar 23. Specifically, the collar 23 is fitted into the annular limiting groove on the rotating shaft 5. The inner diameter of the collar 23 is larger than the diameter of the bottom circle of the annular limiting groove, but smaller than the diameter of the rotating shaft 5. This confines the collar 23 within the annular limiting groove, limiting the axial movement of the collar 23 and ensuring the stability of the swing plane. The gap between the inner diameter of the collar 23 and the annular limiting groove ensures the flexibility of the pendulum 2's swing.

[0027] In this embodiment, the rotating shaft 5 includes a first shaft segment and a second shaft segment that are coaxially connected. The end face of the first shaft segment facing the second shaft segment has a threaded hole, while the end face of the second shaft segment facing the first shaft segment has a coaxially extending connecting rod with a diameter smaller than that of the second shaft segment. The protruding end of the connecting rod has an external thread that mates with the threaded hole. This threaded engagement allows the first and second shaft segments to be coaxially connected, forming an annular limiting groove at their connection point. In use, the collar 23 of the pendulum 2 is first fitted onto the connecting rod, and then the first and second shaft segments are connected to complete the rotational connection between the pendulum 2 and the rotating shaft 5.

[0028] In addition, in this embodiment, the rotating shaft 5 is preferably set on the upper cover 12. The two ends of the rotating shaft 5 are fixed on the upper cover 12 after the first shaft segment and the second shaft segment are connected. Thus, the pendulum 2 can be picked up and put down together by moving the upper cover 12, which facilitates the installation and maintenance of the pendulum 2.

[0029] The weight body 22 can be threaded to the end of the pendulum rod 21 or integrally formed with the pendulum rod 21. The weight body 22 is provided with a counterweight mounting structure, and is configured to allow at least one counterweight block 6 to be detachably mounted, thereby changing the weight of the weight body 22. This allows the sensitivity of the pendulum 2 to be adjusted according to actual needs, meeting different user requirements and expanding the application range.

[0030] Furthermore, the counterweight mounting structure includes multiple mounting positions symmetrically arranged on the counterweight body 22, and the counterweight 6 consists of an even number of individuals of the same weight, which are installed on the symmetrical mounting positions during use to ensure that the center of gravity is located on the axis of the swing arm 21.

[0031] In this embodiment, the weight body 22 is a fan-shaped plate integrally formed with the pendulum rod 21. Of course, in some other embodiments, the weight body 22 can also be a plate-like structure of other shapes, and this application does not limit this. The geometric center of the weight body 22 is located on the axis of the pendulum rod 21, and it is symmetrically arranged about the axis of the pendulum rod 21, so that the center of gravity of the weight body 22 is located on the axis of the pendulum rod 21. The plate surface of the weight body 22 is designed to be parallel to the rear sidewall of the housing 1, that is, parallel to the plane where the dial 4 is located. Three parallel first strip-shaped slots 221 are evenly formed on each of the two radial straight edges of the weight body 22. Figure 3 As shown, the first strip groove 221 extends along the axis of the parallel swing rod 21 to form a notch.

[0032] To adjust the measurement sensitivity, the device is equipped with multiple counterweights 6. This embodiment provides three pairs of counterweights 6, each pair having the same weight, for example, one pair each of 5g, 10g, and 15g. Each counterweight 6 is plate-shaped, with a second strip-shaped slot 61 on one side, extending along the plate surface of the counterweight 6. Specifically, as... Figure 3 As shown, the counterweight 6 in this embodiment is a rectangular plate with a second strip groove 61 at the middle of its long side. The second strip groove 61 extends along the width of the rectangular plate, so that the weight of the rectangular plate is equal on both sides of the second strip groove 61.

[0033] During installation, select a pair of counterweights 6 of the same weight, align the second strip-shaped groove 61 on them with the first strip-shaped groove 221 on the edge of the hammer body 22, and then push them in forcefully until they are locked, so that the counterweights 6 and the hammer body 22 are connected in a "cross" shape. Through this interlocking structure, the counterweights 6 are firmly installed on both sides of the hammer body 22 and will not loosen during swinging. Furthermore, the plate surface of the counterweights 6 is parallel to the pendulum rod 21 and extends back and forth. During swinging, they generate air resistance with the air inside the housing 1, which not only dampens the swing of the pendulum 2 and shortens the time it takes for the pendulum 2 to stop swinging, but also enhances the effect of adding counterweights 6 to reduce the swing sensitivity of the pendulum 2.

[0034] The optical aligner 3 is fixed on the lever 21, and its position corresponds to the scale on the dial 4. The rear scale can be observed through the spherical lens 31. The lever 21 has a circular hole, and the optical aligner 3 is glued or interference-fitted into the circular hole of the lever 21.

[0035] The spherical lens 31 is a plano-convex lens with one side being a plane and the other a spherical surface. The spherical surface convexes forward, and its curvature is designed to effectively magnify the rear scale. The central axis of the spherical lens 31 intersects the axis of the lever 21, meaning the plane of the spherical lens 31 is parallel to the scale 4. Simultaneously, the foremost point of the spherical surface, the most convex point, is aligned with the axis of the lever 21 in the front-back direction. This design ensures that when the user reads the scale, the magnified scale lines by the spherical lens 31 are straight only when the line of sight is precisely perpendicular to the plane of the scale 4. If the line of sight is misaligned, not only will the scale lines be unclear, but they will also appear as curves instead of straight lines. This design forces the observer to find the correct viewing angle without parallax, thereby eliminating reading errors caused by line-of-sight misalignment and significantly improving the accuracy of readings and consistency between different operators.

[0036] Alignment marks 32 are also provided on the spherical surface of the spherical lens 31. These alignment marks 32 are thin lines and are etched or printed onto the spherical surface of the lens 31. The direction of the alignment marks 32 is precisely set to be completely aligned with the axis of the lever 21 in the front-to-back direction. That is, when viewed from directly in front, the alignment marks 32 coincide with the axis of the lever 21; when viewed from the left or right side, the alignment marks 32 coincide with the spherical contour of the lens 31. During reading, the alignment marks 32 are used to determine if the line of sight is in the correct position by checking if they completely coincide with the scale lines, allowing for easy adjustment of the viewing angle to improve reading accuracy.

[0037] Preferably, the alignment mark 32 is a colored line, and its color is different from the color of the scale line on the dial 4.

[0038] Additionally, when measuring angles, the actual measured angle may lie between two adjacent scale lines. In this case, the device can be slightly adjusted to align the alignment mark 32 completely with the nearest scale line to correct the line of sight and avoid excessive line of sight deviation. Then, the device can be fully aligned with the surface to be inspected to obtain the precise reading. Furthermore, the probability of the aforementioned situation occurring can be reduced by increasing the accuracy of the scale on the dial 4.

[0039] Other examples Figure 1 As shown, a tubular level indicator 7 is provided on the top surface of the housing 1. A common bubble level indicator can be used to calibrate the horizontal state of the device in the front-back direction before measurement. In use, the left or right side of the device is pressed against the wall of the structure being measured. Observe the level indicator 7 and slightly adjust the device's posture to center its bubble, thereby ensuring that the device is horizontal in the front-back direction, that is, the swing plane of the pendulum 2 is parallel to the plane of the scale 4.

[0040] In addition, a storage compartment 8 with a flip-top is provided on the top of the housing 1 for storing unused counterweights 6 and other spare small parts, making it convenient to carry and manage.

[0041] The device of this application can monitor the vertical tilt not only by attaching its left or right side to the wall of the structure being measured, but also by attaching its bottom side to a horizontal monitoring surface, such as a balcony, to monitor the horizontal tilt of the structure.

Claims

1. A building monitoring auxiliary device, characterized in that, It includes a housing (1) with an inner cavity and a pendulum (2) and a dial (4) located inside the housing (1); The pendulum (2) includes a pendulum rod (21), one end of which is provided with a weight body (22), and the other end is rotatably connected to the shell (1), and can swing freely left and right under the action of gravity; The dial (4) is located on the rear side wall of the housing (1), and the center of its scale arc surface is located on the rotation axis of the pendulum (2). A transparent observation part (11) is provided on the front side wall of the housing (1). The pendulum (2) is provided with an optical aligner (3), which includes a forward-protruding spherical lens (31) and an alignment mark (32) on the spherical surface of the spherical lens (31). The central axis of the spherical lens (31) intersects with the axis of the pendulum (21), and the alignment mark (32) is aligned with the axis of the pendulum (21). The optical aligner (3) corresponds to the scale on the dial (4) and the rear scale can be observed through the spherical lens (31).

2. The building monitoring auxiliary device as described in claim 1, characterized in that, The optical aligner (3) is fixed to the lever (21).

3. The building monitoring auxiliary device as described in claim 2, characterized in that, The alignment mark (32) is set on the spherical surface of the spherical lens (31) by etching or printing.

4. The auxiliary device for monitoring building structures as described in claim 1, characterized in that, The counterweight body (22) is provided with a counterweight mounting structure and is configured to allow at least one counterweight block (6) to be detachably mounted.

5. The building monitoring auxiliary device as described in claim 4, characterized in that, It includes an even number of counterweights (6) of equal weight, and the counterweight mounting structure includes multiple mounting positions symmetrically arranged on the weight body (22).

6. The building monitoring auxiliary device as described in claim 5, characterized in that, The weight body (22) of the pendulum (2) is a plate-shaped structure with its plate surface parallel to the plane of the dial (4). The mounting position is the first strip groove (221) opened on the edge of the weight body (22). The counterweight (6) is plate-shaped with a second strip groove (61) that engages with the first strip groove (221). When the counterweight (6) is installed on the weight body (22), the plate surface of the counterweight (6) is parallel to the pendulum rod (21) and extends back and forth.

7. The auxiliary device for monitoring building structures as described in claim 1, characterized in that, The upper part of the inner cavity of the housing (1) is provided with a rotating shaft (5), and the end of the swing rod (21) away from the weight body (22) is provided with a collar (23). The pendulum (2) is rotatably connected to the housing (1) by the collar (23) sleeved on the rotating shaft (5).

8. The building monitoring auxiliary device as described in claim 7, characterized in that, The rotating shaft (5) is provided with an annular limiting groove, and the shaft collar (23) is axially limited within the annular limiting groove. The inner diameter of the shaft collar (23) is greater than the bottom diameter of the annular limiting groove and less than the diameter of the rotating shaft (5).

9. The auxiliary device for monitoring building structures as described in claim 1, characterized in that, The housing (1) is provided with a horizontal indicator (7) and is configured to indicate the horizontal state of the housing (1) in the front-back direction.

10. A building monitoring auxiliary device as described in claim 1, characterized in that, The housing (1) is also provided with an accessory storage compartment (8) that can store the counterweight (6).

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