CN114383482B - Limiting alarm device with controllable alarm threshold - Google Patents
Limiting alarm device with controllable alarm threshold Download PDFInfo
- Publication number
- CN114383482B CN114383482B CN202111440808.8A CN202111440808A CN114383482B CN 114383482 B CN114383482 B CN 114383482B CN 202111440808 A CN202111440808 A CN 202111440808A CN 114383482 B CN114383482 B CN 114383482B
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- rope
- alarm
- measuring
- limit
- movable
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- 238000004804 winding Methods 0.000 claims abstract description 18
- 230000001960 triggered effect Effects 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a limit alarm device with a controllable alarm threshold value, and belongs to the technical field of limit alarm devices. The technical proposal is as follows: the limit alarm device with the controllable alarm threshold comprises a fixed shell, wherein a rope measuring winding device, a limit adjusting device and an alarm device are arranged in the fixed shell; the limiting and adjusting device comprises a fixed column and two movable limiting columns which are arranged on two sides of the fixed column in a sliding manner, wherein a rope measuring channel capable of allowing the rope to pass through is arranged on the movable limiting columns, and a clamping mechanism capable of fixing the rope is arranged on the movable limiting columns; and limiting points are arranged on the fixed columns, and when any movable limiting column is displaced to the limiting point, the alarm device is triggered and the clamping mechanism is released. The beneficial effects of the invention are as follows: the deformation or relative displacement between two objects can be detected, and an alarm threshold value is set, and when the alarm threshold value reaches the threshold value, an alarm signal is sent out, so that the cost is low and the cost performance is high; the measuring precision is high, and the measuring precision can be accurate to millimeter level.
Description
Technical Field
The invention relates to the technical field of limit alarm devices, in particular to a limit alarm device with a controllable alarm threshold value.
Background
In the building construction process, the problems of retaining wall deformation, template support frame deformation, foundation pit displacement and the like can become potential safety hazards if the problems cannot be found in time, the hidden danger in the construction is an important ring in daily work, but manual detection is easier to observe at a position with larger relative deformation, a visual and effective detection means is often lacking when the position is compared with the situation in the initial stage of establishment, and the manners of a meter ruler, a range finder and the like are generally adopted, and the positions needing to be monitored are usually more because of manual operation and slightly different detection positions each time, so that the problems are not found in time, the early warning is not easy to be caused, the situation can not be prevented, and the hidden danger continuously exists to finally cause the occurrence of a safety accident.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a limit alarm device with controllable alarm threshold, which can detect deformation or relative displacement between two objects, set the alarm threshold, and send an alarm signal when the threshold is reached.
The invention is realized by the following technical scheme: the limit alarm device with the controllable alarm threshold comprises a fixed shell, wherein a rope winding device capable of winding a rope, a limit adjusting device and an alarm device are arranged in the fixed shell; the limiting and adjusting device comprises a fixed column and two movable limiting columns which are arranged on two sides of the fixed column in a sliding manner, wherein a rope measuring channel which can allow the rope to pass through is arranged on the movable limiting columns, and a clamping mechanism which can fix the rope is arranged on the movable limiting columns and at the position of the rope measuring channel; the measuring rope passes through the measuring rope channel and then passes through the mounting shell, and when the clamping mechanism clamps, the movable limiting column can be displaced along with the elongation of the measuring rope; the fixed column is provided with a limit point, when any movable limit column is displaced to the limit point, an alarm device is triggered, and the fixed column can jack the clamping mechanism to release the measuring rope;
the fixed shell and the free end of the measuring rope are respectively arranged on two building bodies, and the alarm threshold can be adjusted by adjusting the distance between the movable limiting column and the limiting point.
The measuring rope winding device comprises a cylinder, and a winding reed similar to the measuring tape is arranged on the cylinder and can be used for winding the measuring rope into the device.
Further, the alarm device comprises an alarm, a battery, a public end conducting strip arranged on the fixed column and a movable end conducting strip arranged on the movable limiting column, wherein the alarm is triggered when any movable end conducting strip is communicated with the public end conducting strip through a wire connection loop.
The alarm device can also form an alarm loop through limit switches, two limit switches are respectively arranged on the movable limit posts, limit baffles are arranged on the fixed posts, and the limit baffles are used for extruding the limit switches to switch on the alarm loop.
Further, a chute is arranged on the fixed shell, the fixed column is arranged in the chute in a sliding manner, and the lower end of the fixed column penetrates out of the chute.
Further, the outside of fixed box just for the position of limit point is equipped with zero scale, uses zero scale as the starting point to the extension of both sides is equipped with millimeter scale mark, millimeter scale mark sets up the both sides of spout.
Further, the spacing passageway comprises the recess of crossing movable spacing post one side, fixture is including articulating the clamp plate on the movable spacing post, the clamp plate is close to the one end of recess is equipped with the layering, the other end through spring or torsion structure with movable spacing post is connected, the layering can with the measuring rope compresses tightly the locking in the recess.
Further, the outside of clamp plate is equipped with arc boss one, be equipped with arc boss two on the fixed column, when the alarm was triggered, arc boss one can by arc boss one extrudees, presses down the clamp plate and then drives the layering breaks away from the recess.
Further, a baffle plate is arranged in the fixed box to separate the rope measuring winding device from the limiting and adjusting device.
Further, the baffle is provided with a threading hole allowing the measuring rope to pass through, a guide wheel is arranged at the position, close to the threading hole, of the sliding groove, and the measuring line vertically passes through the measuring rope channel after passing through the guide wheel.
Further, end bosses are arranged at the positions of the two ends of the sliding groove, and when the movable limiting columns move to the two ends of the sliding groove, the end bosses can squeeze the pressing plate to enable the pressing bar to be separated from the groove.
When the device is used, the free end of the measuring rope is pulled out, the measuring rope is temporarily positioned outside the measuring rope channel, and the free end of the measuring rope and the fixed shell are respectively fixed on two building structures needing displacement monitoring; the distance between the movable limiting column and the fixed column, namely an alarm threshold, is adjusted according to the maximum displacement of the building structure, and the measuring rope is clamped through the clamping mechanism; when the space of the building mechanism is displaced, when the space is enlarged, the movable limit column far away from the free end is close to the fixed column, when the space is reduced, the movable limit column close to the free end is close to the fixed column, when any one movable limit column reaches a limit point, the corresponding conducting strip is conducted, the loop of the alarm device is conducted to give an alarm, the displacement reaches an alarm threshold value, the pressing plate drives the pressing strip to be separated from the groove, the movable limit column which is currently connected with the conducting strip can keep the current position, when the displacement continues to be increased, the measuring rope continues to be elongated, the other movable limit column continues to be positioned along with the pressing plate, when the movable limit column slides to the end part of the sliding groove, the end part protrusion can press down the pressing plate, the measuring rope is further released, once the alarm is continuously operated, and the alarm is reset manually in the whole process until the movable limit column is reset.
The beneficial effects of the invention are as follows: the device has low cost and high cost performance; the measurement accuracy is high, and the measurement accuracy can be up to millimeter level; the operation is easy, the alarm can be continuously given, and the alarm is suitable for constructional engineering; the alarm threshold value is adjustable, and the application range is wide; the winding device for the measuring rope is provided, and the length of the measuring rope can meet different building intervals.
Drawings
Fig. 1 is a schematic diagram of the whole structure of the device.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic structural view of the movable limiting column.
Reference numerals: 1. a fixed case; 11. a chute; 12. millimeter scale marks; 13. a baffle; 2. a rope measuring winding device; 21. rope measurement; 3. an alarm device; 31. an alarm; 32. a battery; 33. a wire; 34. a common terminal conductive sheet; 35. a movable end conductive sheet; 4. a movable limit column; 41. a groove; 42. pressing strips; 43. a pressing plate; 44. a spring; 45. arc boss I; 5. fixing the column; 51. arc boss two.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
The first embodiment of the invention is realized by the following technical scheme: the limit alarm device 3 with the controllable alarm threshold comprises a fixed shell 1, wherein a rope measuring winding device 2 capable of winding a rope measuring 21, a limit adjusting device and the alarm device 3 are arranged in the fixed shell 1; the limiting and adjusting device comprises a fixed column 5 and two movable limiting columns 4 which are arranged on two sides of the fixed column 5 in a sliding manner, wherein a rope 21 channel which can allow a rope 21 to pass through is arranged on the movable limiting columns 4, and a clamping mechanism which can fix the rope 21 is arranged on the movable limiting columns 4 and at the position of the rope 21 channel; the measuring rope 21 passes through the channel of the measuring rope 21 and then passes through the mounting shell, and when the clamping mechanism clamps, the movable limiting column 4 can be moved along with the elongation of the measuring rope 21; the fixed column 5 is provided with a limit point, when any movable limit column 4 moves to the limit point, the alarm device 3 is triggered, and the fixed column 5 can jack up the clamping mechanism to release the measuring rope 21;
The free ends of the fixed shell 1 and the measuring rope 21 are respectively arranged on two building bodies, and the alarm threshold can be adjusted by adjusting the distance between the movable limiting column 4 and the limiting point.
The measuring rope winding device 2 comprises a cylinder, and a winding reed similar to a measuring tape is arranged on the cylinder and can be used for winding the measuring rope 21 into the device.
The alarm device 3 comprises an alarm 31, a battery 32, a public end conducting strip 34 arranged on the fixed column 5 and a movable end conducting strip 35 arranged on the movable limit column 4, wherein the movable end conducting strip 35 is connected with a loop through a lead 33, and the alarm 31 is triggered when any movable end conducting strip 35 is communicated with the public end conducting strip 34.
The alarm device 3 can also form an alarm loop through limit switches, two limit switches are respectively arranged on the movable limit column 4, a limit baffle 13 is arranged on the fixed column 5, and the alarm loop is connected when the limit baffle 13 extrudes the limit switches.
The fixed shell 1 is provided with a chute 11, the fixed column 5 is arranged in the chute 11 in a sliding way, and the lower end of the fixed column 5 penetrates out of the chute 11.
The outside of the fixed box and the position relative to the limiting point are provided with zero graduations, millimeter graduation marks 12 are extended to two sides by taking the zero graduations as starting points, and the millimeter graduation marks 12 are arranged on two sides of the chute 11.
The spacing passageway comprises recess 41 that traverses movable spacing post 4 one side, and fixture includes the clamp plate 43 of articulated on movable spacing post 4, and the one end that clamp plate 43 is close to recess 41 is equipped with layering 42, and the other end passes through spring 44 or torsion structure and is connected with movable spacing post 4, and layering 42 can compress tightly the locking in recess 41 with measuring rope 21.
The outside of clamp plate 43 is equipped with arc boss one 45, is equipped with arc boss two 51 on the fixed column 5, and when alarm 31 was triggered, arc boss one 45 can be pressed by arc boss one 45, presses clamp plate 43 and then drives layering 42 and breaks away from recess 41.
A baffle 13 is arranged in the fixed box to separate the rope measuring winding device 2 from the limiting and adjusting device.
The baffle 13 is provided with a threading hole allowing the measuring rope 21 to pass through, the position of the chute 11 close to the threading hole is provided with a guide wheel, and the measuring line vertically passes through the channel of the measuring rope 21 after passing through the guide wheel.
End bosses are arranged at the two ends of the sliding groove 11, and when the movable limiting column 4 moves to the two ends of the sliding groove 11, the end bosses can press the pressing plates 43 to enable the pressing bars 42 to be separated from the grooves 41.
When the device is used, the free end of the measuring rope 21 is pulled out, the measuring rope 21 is temporarily positioned outside a channel of the measuring rope 21, and the free end of the measuring rope 21 and the fixed shell 1 are respectively fixed on two building structures needing displacement monitoring; the distance between the movable limiting column 4 and the fixed column 5, namely an alarm threshold value, is adjusted according to the maximum displacement of the building structure, and the measuring rope 21 is clamped by the clamping mechanism; when the space of the building mechanism is displaced, when the space is increased, the movable limit post 4 far away from the free end is close to the fixed post 5, when the space is reduced, the movable limit post 4 close to the free end is close to the fixed post 5, when any one movable limit post 4 reaches a limit point, the corresponding conducting plate is conducted, the loop of the alarm device 3 is conducted to give an alarm, the displacement reaches an alarm threshold value, the pressing plate 43 drives the pressing strip 42 to be separated from the groove 41, the movable limit post 4 which is currently connected with the conducting plate keeps the current position, when the displacement is continuously increased, the measuring rope 21 is continuously lengthened, the other movable limit post 4 is continuously positioned, when the movable limit post 4 slides to the end part of the chute 11, the end part bulge can press the pressing plate 43, the measuring rope 21 is further released, and once the alarm 31 alarms, the alarm can continuously work in the whole process until the movable limit post 4 is manually reset; the device can also be independently arranged to monitor the expansion or lengthening of the building structures according to the requirements.
The technical features of the present invention that are not described in the present invention may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be within the scope of the present invention by those skilled in the art.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
Claims (6)
1. The limit alarm device with the controllable alarm threshold is characterized by comprising a fixed shell, wherein a rope measuring winding device capable of winding a rope, a limit adjusting device and an alarm device are arranged in the fixed shell; the limiting and adjusting device comprises a fixed column and two movable limiting columns which are arranged on two sides of the fixed column in a sliding manner, wherein a rope measuring channel which can allow the rope to pass through is arranged on the movable limiting columns, and a clamping mechanism which can fix the rope is arranged on the movable limiting columns and at the position of the rope measuring channel; the measuring rope passes through the measuring rope channel and then passes through the fixed shell, and when the clamping mechanism clamps, the movable limiting column can be displaced along with the elongation of the measuring rope; when any movable limiting column is displaced to the position of the fixed column, triggering an alarm device, wherein the fixed column can jack the clamping mechanism to release the measuring rope;
The free ends of the fixed shell and the measuring rope are respectively arranged on two building bodies, and the alarm threshold can be adjusted by adjusting the distance between the movable limiting column and the limiting point;
The alarm device comprises an alarm, a battery, a public end conducting strip arranged on the fixed column and a movable end conducting strip arranged on the movable limiting column, wherein the alarm is triggered when any movable end conducting strip is communicated with the public end conducting strip through a wire connection loop;
The rope measuring channel is formed by a groove traversing one side of the movable limiting column, the clamping mechanism comprises a pressing plate hinged on the movable limiting column, one end of the pressing plate, which is close to the groove, is provided with a pressing strip, the other end of the pressing plate is connected with the movable limiting column through a spring or torsion structure, and the pressing strip can press and lock the rope measuring in the groove;
the outside of clamp plate is equipped with arc boss one, be equipped with arc boss two on the fixed column, when the alarm was triggered, arc boss one can by arc boss two extrudees, presses down the clamp plate and then drives the layering breaks away from the recess.
2. The limit alarm device with controllable alarm threshold according to claim 1, wherein a chute is arranged on the fixed shell, the fixed column is slidably arranged in the chute, and the lower end of the fixed column penetrates out of the chute.
3. The limit alarm device with controllable alarm threshold according to claim 2, wherein zero graduations are arranged on the outer side of the fixed shell and opposite to the limiting point, millimeter graduation lines are arranged on the two sides of the chute in an extending mode with the zero graduations as starting points.
4. The limit alarm device with controllable alarm threshold according to claim 2, wherein a baffle is arranged inside the fixed shell to separate the rope winding device from the limit adjusting device.
5. The limit alarm device with controllable alarm threshold value according to claim 4, wherein a threading hole allowing the measuring rope to pass through is formed in the baffle, a guide wheel is arranged at a position, close to the threading hole, of the sliding groove, and the measuring rope vertically passes through the measuring rope channel after passing through the guide wheel.
6. The limit alarm device with controllable alarm threshold according to claim 2, wherein end bosses are provided at positions at both ends of the chute, and when the movable limit post moves to both ends of the chute, the end bosses can press the pressing plate to separate the pressing bar from the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440808.8A CN114383482B (en) | 2021-11-30 | 2021-11-30 | Limiting alarm device with controllable alarm threshold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440808.8A CN114383482B (en) | 2021-11-30 | 2021-11-30 | Limiting alarm device with controllable alarm threshold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114383482A CN114383482A (en) | 2022-04-22 |
| CN114383482B true CN114383482B (en) | 2024-05-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111440808.8A Active CN114383482B (en) | 2021-11-30 | 2021-11-30 | Limiting alarm device with controllable alarm threshold |
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| CN (1) | CN114383482B (en) |
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| Publication number | Publication date |
|---|---|
| CN114383482A (en) | 2022-04-22 |
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