Foundation pit depth measuring device for foundation pit monitoring

Abstract

The utility model relates to the technical field of foundation pit monitoring, in particular to a foundation pit depth measuring device for foundation pit monitoring, which comprises a toolbox and universal wheels arranged at the bottom of the toolbox, a transmission assembly is arranged in the toolbox and comprises a worm, and when a winding wheel rotates to wind or release a tape, an extrusion plate is driven to synchronously lift, so that the depth of the tape is measured. The extrusion fixing assembly does not need to be independently operated before the depth of the foundation pit is measured, the extrusion fixing assembly is driven through a gear and a rack, other electrical equipment does not need to serve as a driving source, the power supply problem does not need to be considered, and the operation efficiency is higher; when the gear rotates reversely, the gear continues to rotate but is not in meshing transmission with the non-full rack any more, through elastic restoring force provided by the spring, the gear can be in meshing transmission with the non-full rack again when rotating reversely, and the beneficial effect of being more convenient to use is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit monitoring, in particular to a foundation pit depth measuring device for foundation pit monitoring. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. After the foundation pit is excavated, its depth needs to be measured using a measuring device to facilitate staff to grasp the data for later construction.

[0003] The utility model patent with the authorization announcement number CN219794033U is specifically "a foundation pit depth measuring device for foundation pit monitoring". The beneficial effect section of its specification records that "the foundation pit depth measuring device for foundation pit monitoring, by setting a support assembly and a measuring assembly, rotates the worm through the turntable, so that the meshing worm wheel rotates, drives the rotating shaft and the winding drum to rotate, drives the pull rope to pull the counterweight block to move under the support of the second pulley and the first pulley, so as to facilitate the winding of the winding ruler, thereby achieving the purpose of facilitating the winding of the ruler";

[0004] Although it has the function of facilitating the winding of the measuring ruler, the stabilizing component it uses requires starting the electric push rod to push the horizontal plate downward, and push the fixed pile downward, so that its movement is more stable under the support of the vertical cylinder and the extension rod. The entire stabilizing component is completely independent of the measuring component, and the stabilizing component needs to be fixed in advance before operating the measuring component. In addition, the stabilizing component uses an electric push rod as the driving source, and its power supply stability also needs to be considered, which is not convenient for flexible mobile measurement. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a foundation pit depth measuring device for foundation pit monitoring, which can effectively solve the problem of inconvenience in use of the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a foundation pit depth measuring device for foundation pit monitoring, comprising a tool box and a universal wheel installed at the bottom of the tool box, a transmission component installed in the tool box, the transmission component comprising a worm, the worm is rotatably installed between two opposite inner side walls of the tool box, a worm wheel is meshingly installed below the worm, a first bevel gear is fixedly installed on one side of the worm wheel, a winding wheel is rotatably installed on one side of the tool box, a tape measure is wound around the outer ring wall of the winding wheel, a second bevel gear is installed on one side of the winding wheel, the second bevel gear is arranged in the tool box and meshingly installed with the first bevel gear, an extrusion fixing component is installed in the tool box, the extrusion fixing component comprises a gear, the gear is fixedly installed on the other side of the worm wheel, a non-full rack is meshingly installed on one side of the gear, an extrusion plate is vertically fixedly installed on the bottom end of the non-full rack, and a spring is installed between the top of the non-full rack and the top of the upper cavity of the tool box.

[0008] Furthermore, a shaft cylinder is fixedly installed on one side of the tool box, an opening is opened through the inner cavity at the bottom of the tool box, and the extrusion plate is installed in the opening in a lifting and sliding manner.

[0009] Furthermore, a handrail is vertically fixedly installed on one side of the tool box away from the shaft cylinder, and a material moving rod is also fixedly installed on one side of the tool box on which the shaft cylinder is installed.

[0010] Furthermore, a material-moving hole is formed at the top end of the material-moving rod and passes through the bottom end, and a plumb bob is installed at the end of the tape measure and passes through the material-moving hole.

[0011] Furthermore, one end of the worm extends through the outside of the tool box and a crank is vertically fixedly installed, and the crank and the armrest are located on the same side of the tool box.

[0012] Furthermore, the winding wheel is fixedly connected to a rotating rod at a position close to the center of a circle on one side of the tool box, and the end of the rotating rod rotates through the shaft tube and extends into the tool box and vertically fixedly installs the second bevel gear.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following advantages:

[0014] Beneficial effects:

[0015] 1. An extrusion plate that can be raised and lowered and slid is set at the bottom of the measuring tool box. When the winding wheel rotates to rewind or release the tape measure, the extrusion plate will be driven to rise and fall synchronously. There is no need to operate the extrusion fixing component separately before measuring the foundation pit depth. The extrusion fixing component is driven by a gear rack, and no other electrical equipment is required as a driving source. There is no need to consider power supply issues, which has the characteristics of higher operating efficiency and more convenient use.

[0016] 2. The extrusion plate is driven by the meshing of the non-full rack and the gear to achieve synchronous lifting. When the extrusion plate drops to a state in contact with the ground or rises to a state where it is completely stored in the tool box, the gear continues to rotate but no longer meshes with the non-full rack for transmission. The elastic restoring force provided by the spring will enable the gear to mesh with the non-full rack again for transmission when rotating in the opposite direction, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the tool box of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the winding wheel of the utility model;

[0021] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] The numbers in the figure represent: 1. Tool box; 11. Shaft cylinder; 12. Opening; 13. Handrail; 14. Material pusher rod; 15. Universal wheel; 2. Transmission assembly; 21. Worm; 22. Worm wheel; 23. First bevel gear; 24. Crank; 3. Winding wheel; 31. Tape measure; 32. Plumb block; 33. Turning rod; 34. Second bevel gear; 4. Extrusion fixing assembly; 41. Gear; 42. Partial rack; 43. Extrusion plate; 44. Spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a foundation pit depth measuring device for foundation pit monitoring, including a tool box 1 and a universal wheel 15 installed at the bottom of the tool box 1. Figure 1 It can be known that four universal wheels 15 are provided, which are respectively located at the four corners of the bottom of the toolbox 1. The transmission assembly 2 is installed in the toolbox 1. The transmission assembly 2 includes a worm 21, which is rotatably installed between the two opposite inner side walls of the toolbox 1. A worm wheel 22 is meshedly installed below the worm 21, and a first bevel gear 23 is fixedly installed on one side of the worm wheel 22. The winding wheel 3 is rotatably installed on one side of the toolbox 1. A tape measure 31 is wrapped around the outer ring wall of the winding wheel 3, and scale lines are provided on the tape measure 31. The depth of the foundation pit can be known by the scale of the released tape measure 31. A second bevel gear 34 is installed on one side of the winding wheel 3, and the second bevel gear 34 is arranged in the toolbox 1 and meshed with the first bevel gear 23. The extrusion fixing assembly 4 is installed in the toolbox 1, and the extrusion fixing assembly 4 includes a gear 41, which is fixedly installed on the other side of the worm wheel 22, and a non-full rack 42 is meshedly installed on one side of the gear 41. The instructions are attached. Figure 2 It can be known that the non-full rack 42 is a strip-shaped structure with only partial meshing teeth. When the top or bottom meshing teeth are engaged with the gear 41, they will not continue to mesh and rise and fall, but the elastic restoring force provided by the spring 44 makes the non-full rack 42 mesh with the gear 41 again for transmission when the gear 41 rotates in the opposite direction. The bottom end of the non-full rack 42 is vertically fixed with an extrusion plate 43, and a spring 44 is installed between the top of the non-full rack 42 and the top of the upper cavity of the toolbox 1.

[0027] Example 2

[0028] Reference Figure 1-4, which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a shaft cylinder 11 is fixedly installed on one side of the tool box 1, and an opening 12 is opened through the inner cavity at the bottom of the tool box 1. The extrusion plate 43 is lifted and slidably installed in the opening 12. The design of the opening 12 facilitates the lifting and sliding of the extrusion plate 43. An armrest 13 is vertically fixedly installed on the side of the tool box 1 away from the shaft cylinder 11, which is convenient for pushing the tool box 1 to flexibly turn and move. A material-pickup rod 14 is also fixedly installed on one side of the tool box 1 with the shaft cylinder 11. A material-pickup hole is opened at the top end of the material-pickup rod 14, and a plumb block 32 is installed at the end of the tape measure 31 through the material-pickup hole. The tape measure 31 will pass through the dialing hole during the winding process. The material hole will be cleaned by the material removing rod 14 to scrape away large particles of pollutants such as mud attached to the surface, so as to avoid the scale lines on the tape measure 31 being blocked and affecting the measurement. One end of the worm 21 extends through the outside of the tool box 1, and a crank 24 is vertically fixedly installed to facilitate the rotation of the worm 21. The crank 24 and the handrail 13 are located on the same side of the tool box 1. The winding wheel 3 is fixedly connected to the rotating rod 33 at the center position of one side of the tool box 1. The end of the rotating rod 33 rotates through the shaft cylinder 11 and extends into the tool box 1 and a second bevel gear 34 is vertically fixedly installed to improve the rotation stability of the rotating rod 33 and make the winding wheel 3 extend outside the tool box 1, so that the plumb block 32 can be conveniently lowered and extended to the bottom of the foundation pit.

[0029] The remaining structures are the same as those of Example 1.

[0030] First, the measuring device is moved to the vicinity of the foundation pit by means of the universal wheel 15, and the position directly below the plumb bob 32 is opposite to the bottom of the foundation pit;

[0031] Secondly, rotate the crank 24, thereby driving the worm 21 to rotate, thereby driving the worm wheel 22 to rotate, and the rotation of the worm wheel 22 will synchronously drive the gear 41 and the first bevel gear 23 to rotate, wherein the rotation of the gear 41 will drive the non-full rack 42 to mesh and descend, thereby driving the extrusion plate 43 to extend from the opening 12 to the bottom of the toolbox 1, and finally squeeze and contact the ground near the foundation pit, and the descent of the non-full rack 42 will pull the corresponding spring 44, so that the corresponding spring 44 obtains elastic restoring force, and at the same time, when the first bevel gear 23 will mesh and drive the second bevel gear 34 to rotate, that is, drive the winding wheel 3 to rotate, thereby starting to release the tape measure 31, the tape measure 31 is always kept vertical to the horizontal plane because the plumb block 32 is installed at the end, until the plumb block 32 contacts the bottom of the foundation pit, and the depth of the foundation pit can be known by observing the current scale of the tape measure 31;

[0032] Finally, due to the different depths of the foundation pit, the number of times the winding wheel 3 needs to be rotated to release is also different. However, no matter how many times the winding wheel 3 rotates, when the non-full rack 42 drops to the meshing position of the last meshing tooth and the gear 41, it will not continue to mesh and drop due to the rotation of the gear 41. Therefore, during the rotation of the winding wheel 3, the extrusion plate 43 will maintain an extrusion and contact state after it contacts the ground, ensuring that the measurement process can proceed smoothly.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foundation pit depth measuring device for foundation pit monitoring, comprising a tool box (1) and a universal wheel (15) installed at the bottom of the tool box (1), characterized in that: Also includes: A transmission assembly (2) is installed in the tool box (1), the transmission assembly (2) comprises a worm (21), the worm (21) is rotatably installed between two opposite inner side walls of the tool box (1), a worm wheel (22) is meshingly installed below the worm (21), and a first bevel gear (23) is fixedly installed on one side of the worm wheel (22); A winding wheel (3) is rotatably mounted on one side of the tool box (1), a tape measure (31) is wound around the outer ring wall of the winding wheel (3), a second bevel gear (34) is mounted on one side of the winding wheel (3), the second bevel gear (34) is arranged in the tool box (1) and meshed with the first bevel gear (23); An extrusion fixing assembly (4) is installed in a tool box (1), the extrusion fixing assembly (4) comprising a gear (41), the gear (41) being fixedly installed on the other side of the worm gear (22), a non-full rack (42) being meshed and installed on one side of the gear (41), an extrusion plate (43) being vertically fixedly installed at the bottom end of the non-full rack (42), and a spring (44) being installed between the top end of the non-full rack (42) and the top of the upper cavity of the tool box (1).

2. A foundation pit depth measuring device for foundation pit monitoring according to claim 1, characterized in that: A shaft cylinder (11) is fixedly mounted on one side of the tool box (1), an opening (12) is provided through the inner cavity at the bottom of the tool box (1), and the squeezing plate (43) is installed in the opening (12) in a lifting and sliding manner.

3. A foundation pit depth measuring device for foundation pit monitoring according to claim 2, characterized in that: A handrail (13) is vertically fixedly installed on the side of the tool box (1) away from the shaft cylinder (11), and a material moving rod (14) is also fixedly installed on the side of the tool box (1) on which the shaft cylinder (11) is installed.

4. A foundation pit depth measuring device for foundation pit monitoring according to claim 3, characterized in that: The top end of the material-moving rod (14) passes through the bottom end to form a material-moving hole, and the end of the tape measure (31) passes through the material-moving hole to be installed with a plumb block (32).

5. A foundation pit depth measuring device for foundation pit monitoring according to claim 4, characterized in that: One end of the worm (21) extends through the outside of the tool box (1) and a crank (24) is vertically fixedly installed. The crank (24) and the armrest (13) are located on the same side of the tool box (1).

6. A foundation pit depth measuring device for foundation pit monitoring according to claim 5, characterized in that: The winding wheel (3) is fixedly connected to a rotating rod (33) at a position close to the center of a circle on one side of the tool box (1); the end of the rotating rod (33) rotates through the shaft tube (11) and extends into the tool box (1) and is vertically fixedly mounted with a second bevel gear (34).

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