Bridge crack measuring device

Abstract

The utility model belongs to the technical field of crack measurement, and discloses a bridge crack measuring device which comprises a grab handle, a cavity is formed in the grab handle, an extension rod is fixedly connected to the center of one end face of the grab handle, and a measuring assembly is arranged at the joint of the grab handle and the extension rod. An alloy cone is fixedly installed at the center of the end, away from the grab handle, of the extension rod, a protective cover slidably sleeves the outer wall of the side, close to the alloy cone, of the extension rod, a connecting strip is fixedly connected to one side of the top end of the protective cover and slidably makes contact with the top of the extension rod, and two clamping cylinders are horizontally and fixedly installed on one side of the top of the connecting strip at intervals. A fixing frame is arranged on the outer side of the connecting strip and fixedly installed on the top of the extension rod. By means of the grab handle and the extension rod, main body bearing can be carried out on the upper structure, and by means of the alloy cone, the strength knocking judgment effect can be conveniently achieved when the crack position is measured.

Description

Technical Field

[0001] The present application relates to the technical field of crack measurement, and more specifically, to a bridge crack measurement device. Background Art

[0002] A bridge refers to a building built for roads to cross natural or artificial obstacles. It is erected across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. The bridge pavement is a systematic project from survey, design, construction to use. As the continuation and development of construction, maintenance and management play a vital role in the function of the bridge. Cracks are the most common disease of concrete bridges. The appearance of cracks not only damages the appearance of the bridge and reduces the stress-bearing area of ​​the cross-section, but also affects the structure's anti-penetration performance, leading to the infiltration of moisture and harmful substances, inducing steel corrosion or accelerating the natural aging of concrete, thereby damaging the bearing capacity of the bridge structure and adversely affecting the safety performance of the bridge. Crack width is an important parameter of crack morphology.

[0003] After searching the publication number: CN216246116U, a bridge crack width automatic measuring device is disclosed, including a handle with a cavity provided therein, and the other end of the handle is fixedly connected to an extension rod, etc.; this application solves the problem that the existing measuring devices are usually large in size, complicated to operate, and not conducive to temporary detection.

[0004] However, during use, although the application can utilize the alloy cone to facilitate tapping and judging the strength of the crack during measurement, the pointed design of the alloy cone and its exposed state can easily cause accidental injury to personnel when the overall crack measuring device is used. Safety hazards.

[0005] In order to solve the above problems, the present application provides a bridge crack measuring device. Utility Model Content

[0006] The present application provides a bridge crack measurement device that adopts the following technical solution:

[0007] A bridge crack measuring device comprises a handle, wherein a cavity is provided inside the handle, and an extension rod is fixedly connected to the center position of one end face of the handle, and a measuring assembly is commonly provided at the connection between the handle and the extension rod, an alloy cone is fixedly installed to the center of one end of the extension rod away from the handle, and a protective cover is slidably sleeved on the outer wall of the side of the extension rod close to the alloy cone, a connecting strip is fixedly connected to one side of the top of the protective cover, the connecting strip is slidably contacted with the top of the extension rod, and two cartridges are fixedly installed at horizontal intervals on one side of the top of the connecting strip, and a fixed frame is provided on the outside of the connecting strip, the fixing frame is fixedly installed on the top of the extension rod, and a clamping rod is slidably sleeved through the center position of the top of the fixing frame, a pull tab is fixedly connected to the top of the clamping rod, a spring is fixedly connected to the bottom of the pull tab, the bottom end of the spring is fixedly installed on the top of the fixing frame, and the spring is located on the outer wall on the upper side of the clamping rod.

[0008] Through the above technical solution, the pull tab can achieve the pulling and driving effect on the clamping rod.

[0009] Furthermore, the protective cover is an inverted "U"-shaped cover structure, and the lateral length of the protective cover is greater than the lateral length of the alloy cone.

[0010] Through the above technical solution, the protective cover can achieve the enclosure effect on the alloy cone.

[0011] Furthermore, the two cartridges are both cylindrical hollow barrel structures, and the inner walls of the two cartridges are both snap-fitted and matched with the bottom end of the clamping rod.

[0012] Through the above technical solution, the two clamping cylinders facilitate the cooperation between the protective cover and the clamping rod in two working states.

[0013] Furthermore, a sliding column is fixedly installed at the bottom of one side of the connecting strip away from the protective cover, and the outer wall of the sliding column is slidably sleeved with a limiting groove, and the limiting groove is opened at the top end of the extension rod.

[0014] Through the above technical solution, the sliding column and the limiting groove can achieve the effect of limiting the horizontal movement of the protective cover.

[0015] Furthermore, a controller is fixedly installed at a top position of the handle close to the extension rod, and a display screen and a switch are respectively provided on the upper surface of the controller.

[0016] Through the above technical solution, the controller realizes the control of the electrical device and the response of the measurement data.

[0017] Furthermore, a lighting strip is fixedly mounted on the front side of the extension rod, and the lighting strip is located on one side of the protective cover.

[0018] Through the above technical solution, the lighting strip can provide auxiliary lighting for crack measurement work when needed.

[0019] Furthermore, an end cap is provided at the open end of the handle away from the extension rod, a heat dissipation net is fixedly installed through the inner cavity of the end cap, and three mounting screws are evenly screwed on the outer circumference of the end cap, and the end cap is fixedly installed on one end of the handle by the three mounting screws.

[0020] Through the above technical solution, the installation screws facilitate the disassembly, assembly and positioning of the end cover.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] Through the provided handle and extension rod, the upper structure can be supported by the main body, and the provided alloy cone can be used to facilitate the knocking judgment when measuring the strength of the crack. Through the provided protective cover and connecting strips, clamping cylinders, fixed frames, clamping rods, pull tabs, and springs, after the alloy cone is used, it can be isolated and protected to prevent accidental injuries to relevant personnel, thereby improving the overall safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 A partial semi-exploded diagram of this application;

[0025] Figure 3 This is a partial structural diagram of this application.

[0026] Description of the numbers in the figure:

[0027] 1. Handle; 2. Extension rod; 3. Alloy cone; 4. Protective cover; 5. Connecting strip; 6. Clamp cylinder; 7. Fixed frame; 8. Clamp rod; 9. Pull tab; 10. Spring; 11. Sliding column; 12. Limiting groove; 13. Controller; 14. Light strip; 15. End cover; 16. Heat dissipation net; 17. Mounting screws. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Example:

[0032] The present application embodiment discloses a bridge crack measurement device, see Figure 1 , Figure 2 and Figure 3 , including a handle 1, a cavity is opened inside the handle 1, and an extension rod 2 is fixedly connected to the center of one end face of the handle 1, and a measuring component is commonly provided at the connection between the handle 1 and the extension rod 2, an alloy cone 3 is fixedly installed at the center of one end of the extension rod 2 away from the handle 1, and a protective cover 4 is slidably sleeved on the outer wall of one side of the extension rod 2 close to the alloy cone 3, a connecting strip 5 is fixedly connected to one side of the top of the protective cover 4, the connecting strip 5 is slidably contacted with the top of the extension rod 2, and two cartridges 6 are fixedly installed horizontally at intervals on one side of the top of the connecting strip 5, and a fixing frame 7 is provided on the outer side of the connecting strip 5, the fixing frame 7 is fixedly installed on the top of the extension rod 2, and a clamping rod 8 is slidably sleeved through the center of the top of the fixing frame 7, a pull tab 9 is fixedly connected to the top of the clamping rod 8, a spring 10 is fixedly connected to the bottom of the pull tab 9, the bottom end of the spring 10 is fixedly installed on the top of the fixing frame 7, and the spring 10 is located on the outer wall of the upper side of the clamping rod 8;

[0033] The protective cover 4 is an inverted "U"-shaped cover structure, and the lateral length of the protective cover 4 is greater than the lateral length of the alloy cone 3. The two cartridges 6 are both cylindrical hollow cylinder structures, and the inner walls of the two cartridges 6 are snap-fitted with the bottom ends of the clamping rods 8. A sliding column 11 is fixedly installed at the bottom of the connecting strip 5 away from the protective cover 4. The outer wall of the sliding column 11 is slidably sleeved with a limiting groove 12, and the limiting groove 12 is opened at the top end of the extension rod 2.

[0034] See also Figure 1 and Figure 3 A controller 13 is fixedly installed at the top of the handle 1 near the extension rod 2. A display screen and a switch are respectively provided on the upper surface of the controller 13. A lighting strip 14 is fixedly installed on the front side of the extension rod 2. The lighting strip 14 is located on one side of the protective cover 4.

[0035] An end cap 15 is provided at the open end of the handle 1 on the side away from the extension rod 2, and a heat dissipation net 16 is fixedly installed through the inner cavity of the end cap 15, and three mounting screws 17 are evenly screwed on the outer circumference of the end cap 15, and the end cap 15 is fixedly installed on one end of the handle 1 by the three mounting screws 17. The end cap 15 and the heat dissipation net 16 arranged at the open end of the handle 1 can effectively dissipate heat for the electrical components arranged inside the handle 1, and can also prevent external dust from entering the handle 1. The mounting screws 17 facilitate the disassembly and assembly of the end cap 15 and can also clean the heat dissipation net 16 when necessary.

[0036] Among them, the measuring component set up (not fully shown in the accompanying drawings) is summarized as the existing technology with the same structure and principle as the comparative document publication number: CN216246116U, and includes: a slide groove, a slider, a first measuring head, a second measuring head, a motor, a mobile power supply, a threaded rod and a laser ranging sensor. The specific structural distribution, connection relationship, and the measurement process of the width of the bridge crack in conjunction with the set controller 13 can be referred to the contents in the comparative document, and no further details will be given here.

[0037] The implementation principle of this embodiment is as follows: when in use, the protective cover 4 does not surround the alloy cone 3, so that it is completely sleeved on the outer wall of one side of the extension rod 2, and the bottom end of the clamping rod 8 is plugged and positioned with the inner wall of one of the clamping cylinders 6. At this time, the strength of the crack to be measured can be knocked and judged by the action of the alloy cone 3;

[0038] When the alloy cone 3 is used, the pull tab 9 can be used to lift the clamping rod 8 vertically, and the clamping rod 8 can be separated from one of the cartridges 6 under the deformation of the spring 10 itself. Then, the protective cover 4 can be slid horizontally to fully protect the alloy cone 3. At this time, when the slide column 11 slides to the other side of the limit groove 12, the clamping rod 8 and the other cartridge 6 are linearly corresponding. When the spring 10 is in its own reset state, the clamping rod 8 and the other cartridge 6 can be re-inserted and positioned, so that the protective cover 4 can be used to protect the alloy cone 3 and prevent safety hazards such as accidental injury to personnel during subsequent measurements.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bridge crack measuring device, comprising a handle (1), characterized in that: The handle (1) has a cavity formed inside, and an extension rod (2) is fixedly connected to the center of one end face of the handle (1), and a measuring assembly is provided at the connection between the handle (1) and the extension rod (2), an alloy cone (3) is fixedly installed at the center of one end of the extension rod (2) away from the handle (1), and a protective cover (4) is slidably sleeved on the outer wall of one side of the extension rod (2) close to the alloy cone (3), and a connecting strip (5) is fixedly connected to one side of the top of the protective cover (4), and the connecting strip (5) is in sliding contact with the top of the extension rod (2), and the connecting strip (5) is connected to the top of the extension rod (2). Two clamping cylinders (6) are fixedly installed horizontally and spaced apart on one side of the top of the strip (5), and a fixing frame (7) is provided on the outer side of the connecting strip (5). The fixing frame (7) is fixedly installed on the top of the extension rod (2), and a clamping rod (8) is slidably sleeved through the center position of the top of the fixing frame (7). A pull tab (9) is fixedly connected to the top of the clamping rod (8), and a spring (10) is fixedly connected to the bottom of the pull tab (9). The bottom end of the spring (10) is fixedly installed on the top of the fixing frame (7), and the spring (10) is located on the outer wall of the upper side of the clamping rod (8).

2. A bridge crack measuring device according to claim 1, characterized in that: The protective cover (4) is an inverted "U"-shaped cover structure, and the transverse length of the protective cover (4) is greater than the transverse length of the alloy cone (3).

3. A bridge crack measuring device according to claim 1, characterized in that: The two cartridges (6) are both cylindrical hollow barrel structures, and the inner walls of the two cartridges (6) are both snap-fitted and matched with the bottom end of the clamping rod (8).

4. A bridge crack measuring device according to claim 1, characterized in that: A sliding column (11) is fixedly mounted on the bottom of one side of the connecting strip (5) away from the protective cover (4); the outer wall of the sliding column (11) is slidably sleeved on a limiting groove (12); and the limiting groove (12) is arranged at the top end of the extension rod (2).

5. The bridge crack measuring device according to claim 1, characterized in that: A controller (13) is fixedly mounted on the handle (1) near the top end of the extension rod (2), and a display screen and a switch are respectively arranged on the upper surface of the controller (13).

6. A bridge crack measuring device according to claim 1, characterized in that: A lighting strip (14) is fixedly mounted on the front side of the extension rod (2), and the lighting strip (14) is located on one side of the protective cover (4).

7. A bridge crack measuring device according to claim 1, characterized in that: An end cap (15) is provided at the open end of the handle (1) facing away from the extension rod (2); a heat dissipation net (16) is fixedly installed through the inner cavity of the end cap (15); and three mounting screws (17) are evenly screwed on the outer circumference of the end cap (15); and the end cap (15) is fixedly installed on one end of the handle (1) by means of the three mounting screws (17).

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