Improved reinforcing steel bar protective layer thickness measuring device

Abstract

The utility model discloses an improved steel bar protective layer thickness measuring device, and relates to the technical field of engineering measurement. According to the improved steel bar protective layer thickness measuring device, a rotary knob is rotated to drive a bevel gear I to rotate, a bevel gear II drives a screw rod to rotate, so that a sliding block is driven to slide and descend along a sliding groove, a connecting rod drives a supporting plate to rotate to the side perpendicular to the outer shell, and the outer shell is conveniently and stably supported; an anti-skid gasket on the surface of a positioning sleeve is separated from a supporting plate by rotating the positioning sleeve, limiting on a limiting rod is relieved, an extension plate is pulled to be away from the supporting plate through a buckling groove, a guide plate is driven to slide to the outer side of the supporting plate, then the anti-skid gasket is attached to the supporting plate by rotating the positioning sleeve, limiting and fixing of the extension plate are achieved, and therefore the supporting distance is prolonged; and the rotary knob is rotated to drive the sliding block to ascend, so that the connecting rod drives the supporting plate to rotate to be attached to the side of the outer shell, the supporting plate is stored, and the whole device is convenient to store and carry.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measurement, in particular to an improved steel bar protective layer thickness measuring device. Background Art

[0002] The thicker the steel bar protective layer is, the better the bonding and anchoring performance, durability and fire resistance of the component's stressed steel bars will be. However, too large a thickness will cause the width of the cracks produced after the component is subjected to stress to be too large, which will affect its performance and cause economic waste. In order to ensure the rationality of the construction thickness of the steel bar protective layer, a thickness measuring device is required to measure it before pouring concrete.

[0003] For example, publication number CN213481259U discloses a device for measuring the thickness of a steel bar protective layer, which relates to the technical field of civil engineering measurement equipment. It includes a shell, a placement plate is fixedly connected to the side wall of the shell, a sleeve is penetrated through the lower end of the shell, and a detection mechanism for measuring the thickness of the protective layer is arranged in the shell, and the detection mechanism includes a horizontal plate fixedly connected to the side wall of the sleeve, an infrared transmitter is fixedly connected to the lower end of the horizontal plate, and an infrared receiver matched with the infrared transmitter is fixedly connected to the lower end of the placement plate; the utility model can directly display the specific value of the thickness through the display screen, and the operation is convenient and simple, which solves the problem of complicated steps and inaccurate readings in the control and measurement of the thickness of the protective layer, and greatly improves the construction speed. In addition, by setting an anti-slip sleeve and the anti-slip protrusions arranged on the side wall of the anti-slip sleeve, the friction between the palm and the anti-slip sleeve can be increased, and the possibility of the shell falling can be reduced;

[0004] The support fixing structure of the steel bar protective layer thickness measuring device in the utility model lacks an adjustment function, resulting in the inability to adjust the support length according to different gap widths. At the same time, it lacks a quick storage function, resulting in the device occupying a large space when not in use, which is not conducive to the carrying and transportation of the device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an improved steel bar protective layer thickness measuring device, which solves the problem that the supporting fixing structure of the steel bar protective layer thickness measuring device lacks an adjustment function, resulting in the inability to adjust the support length according to different gap widths, and lacks a quick storage function, resulting in the device occupying a large space when not in use, which is not conducive to the carrying and transportation of the device.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an improved steel bar protective layer thickness measuring device, comprising an outer shell, a handle is fixedly installed on the upper end of the outer shell, a detection rod is arranged on the inner side of the outer shell, slide grooves are opened on the left and right sides of the outer shell, a knob is arranged above the slide groove, a screw rod is arranged on the inner side of the slide groove, a slider is arranged on the outer side of the screw rod, support plates are arranged on the left and right sides of the lower end of the outer shell, a connecting rod is rotatably connected to the upper end of the support plate, an extension plate is arranged on the end of the support plate away from the outer shell, a guide plate is arranged on the inner side of the support plate, a limiting rod is fixedly installed on the front end of the guide plate, and a positioning sleeve is arranged at the front end of the limiting rod.

[0007] Preferably, the lower end of the detection rod extends to the outside of the outer shell through a guide groove, and the upper end of the detection rod is located on the inner side of the outer shell and is provided with a driving assembly to facilitate the control of the extension and retraction of the detection rod.

[0008] Preferably, two of the slide grooves and knobs are symmetrically arranged on the left and right sides, one end of the knob is rotatably connected to the surface of the outer shell, and extends to the inner side of the outer shell where a bevel gear 1 is fixedly installed, so as to facilitate the control of the rotation of the bevel gear 1.

[0009] Preferably, the lower end of the screw rod is rotatably connected to the inner side of the slide groove, and the upper end of the screw rod extends to the inner side of the outer shell and is fixedly mounted with bevel gear 2, and bevel gear 2 and bevel gear 1 are meshed with each other to realize the transmission of the screw rod by the knob.

[0010] Preferably, the surfaces of the slider and the screw rod are threadedly connected and slidingly connected to the inner side of the slide groove. The support plate and the connecting rod are both symmetrically arranged in two. The support plate and the surface of the outer shell are rotatably connected by a hinge. The side of the slider away from the outer shell is rotatably connected to the upper end of the connecting rod, which facilitates the control of the expansion and storage of the support plate.

[0011] Preferably, the guide plate is slidably connected to the inner side of the support plate, the end of the guide plate away from the outer shell extends to the outer side of the support plate, and is fixedly connected to the extension plate, a buckle groove is provided at the upper end of the extension plate, and wear-resistant pads are provided at the lower ends of the extension plate and the support plate to achieve support for the outer shell.

[0012] Preferably, an adjustment groove is opened on the front side of the support plate, and the front end of the limit rod extends to the outside of the support plate through the adjustment groove and is threadedly connected to the inner side of the positioning sleeve. The end of the positioning sleeve close to the support plate is tightly fitted to the surface of the support plate through an anti-slip gasket to achieve extension and fixation of the extension plate.

[0013] Beneficial Effects

[0014] The utility model provides an improved steel bar protective layer thickness measuring device. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The improved steel bar protective layer thickness measuring device is provided with a knob, a bevel gear 1, a screw rod, a bevel gear 2, a slider, and a support plate. The bevel gear 1 is driven to rotate by rotating one or both sides of the knob, so that the bevel gear 2 drives the screw rod to rotate, thereby driving the slider to slide down along the slide groove, and the connecting rod drives the support plate to rotate to the side perpendicular to the outer shell, so as to provide stable support for the outer shell.

[0016] 2. The improved steel bar protective layer thickness measuring device is provided with an extension plate, a buckle groove, a guide plate, a limit rod, and a positioning sleeve. The positioning sleeve is rotated to make the anti-skid gasket on the surface detach from the support plate, thereby releasing the limit on the limit rod. The extension plate is pulled away from the support plate through the buckle groove, driving the guide plate to slide to the outside of the support plate, and then the positioning sleeve is rotated to make the anti-skid gasket fit with the support plate, thereby achieving the limit fixation of the extension plate and extending the support spacing.

[0017] 3. The improved steel bar protective layer thickness measuring device is provided with a slide groove, a knob, a slider, a support plate, and a connecting rod. The slider is driven up by turning the knob, so that the connecting rod drives the support plate to rotate until it fits with the side of the outer shell. At this time, the connecting rod is stored in the inner side of the slide groove to realize the storage of the support plate, effectively reducing the space occupied by the device and facilitating the storage and carrying of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the extension plate, guide plate and positioning sleeve of the utility model;

[0022] Figure 5 It is a front view half-section structure schematic diagram of the utility model.

[0023] In the figure: 1. outer shell; 2. handle; 3. detection rod; 4. slide groove; 5. knob; 51. bevel gear one; 6. screw rod; 61. bevel gear two; 7. slider; 8. support plate; 81. adjustment groove; 9. connecting rod; 10. extension plate; 101. buckle groove; 11. guide plate; 12. limit rod; 13. positioning sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1-5 The utility model provides a technical solution: an improved steel bar protective layer thickness measuring device, comprising an outer shell 1, a handle 2 is fixedly installed on the upper end of the outer shell 1, a detection rod 3 is arranged on the inner side of the outer shell 1, and the lower end of the detection rod 3 extends to the outer side of the outer shell 1 through a guide groove, and the upper end of the detection rod 3 is located on the inner side of the outer shell 1 and a driving component is arranged. When the detection gap is small, the handle 2 is held to drive the device to move to a suitable position, and the support of the outer shell 1 is achieved by abutting the lower end of the outer shell 1 against the edge of the gap, and the lower end of the detection rod 3 is driven by the driving component to extend into the gap, so as to achieve rapid measurement of the steel bar protective layer thickness;

[0026] The outer shell 1 is provided with a slide groove 4 on the left and right sides, and a knob 5 is provided above the slide groove 4. The slide groove 4 and the knob 5 are both symmetrically provided with two. One end of the knob 5 is rotatably connected to the surface of the outer shell 1, and extends to the inner side of the outer shell 1 to be fixedly installed with a bevel gear 1 51. A screw rod 6 is provided on the inner side of the slide groove 4. The lower end of the screw rod 6 is rotatably connected to the inner side of the slide groove 4. The upper end of the screw rod 6 extends to the inner side of the outer shell 1 and is fixedly installed with a bevel gear 2 61. The bevel gear 2 61 and the bevel gear 1 51 are meshed with each other. A slider 7 is provided on the outer side of the screw rod 6. Support plates 8 are provided on the left and right sides of the lower end of the outer shell 1. Support plates 8 are provided on the inner side of the outer shell 1. The upper end of the support plate 8 is rotatably connected with a connecting rod 9, the surfaces of the slider 7 and the screw rod 6 are threadedly connected, and are slidably connected to the inner side of the slide groove 4. The support plate 8 and the connecting rod 9 are both symmetrically arranged with two, and the support plate 8 and the surface of the outer shell 1 are rotatably connected by a hinge. The side of the slider 7 away from the outer shell 1 is rotatably connected to the upper end of the connecting rod 9. By rotating one or both sides of the knob 5, the bevel gear 1 51 is driven to rotate, and the bevel gear 2 61 drives the screw rod 6 to rotate, thereby driving the slider 7 to slide down along the slide groove 4, so that the connecting rod 9 drives the support plate 8 to rotate to the side perpendicular to the outer shell 1, so as to facilitate stable support of the outer shell 1;

[0027] An extension plate 10 is provided at one end of the support plate 8 away from the outer shell 1, and the guide plate 11 is slidably connected to the inner side of the support plate 8. The end of the guide plate 11 away from the outer shell 1 extends to the outer side of the support plate 8 and is fixedly connected to the extension plate 10. A buckle groove 101 is provided at the upper end of the extension plate 10. Wear-resistant pads are provided at the lower ends of the extension plate 10 and the support plate 8. A guide plate 11 is provided on the inner side of the support plate 8. A limit rod 12 is fixedly installed at the front end of the guide plate 11. A positioning sleeve 13 is provided at the front end of the limit rod 12. An adjustment groove 81 is provided on the front side of the support plate 8. The front end of the limit rod 12 passes through the adjustment groove 8 1 extends to the outside of the support plate 8 and is threadedly connected with the inner side of the positioning sleeve 13. The end of the positioning sleeve 13 close to the support plate 8 is tightly fitted with the surface of the support plate 8 through the anti-skid washer. When the edge of the required support gap is far away, the positioning sleeve 13 is rotated to make the anti-skid washer on its surface separate from the support plate 8, so as to release the limit of the limit rod 12, and the extension plate 10 is pulled away from the support plate 8 through the buckle groove 101, so as to drive the guide plate 11 to slide to the outside of the support plate 8, and then the positioning sleeve 13 is rotated to make the anti-skid washer fit with the support plate 8, so as to realize the limit fixation of the extension plate 10, thereby realizing the extension of the support spacing.

[0028] During use, when the detection gap is small, hold the handle 2 to drive the device to a suitable position, and support the outer shell 1 by abutting the lower end of the outer shell 1 against the edge of the gap. Drive the lower end of the detection rod 3 into the gap through the driving component to achieve rapid measurement of the thickness of the steel bar protective layer. When the gap is large, turn the knob 5 on one side or both sides to drive the bevel gear 1 51 to rotate, so that the bevel gear 2 61 drives the screw 6 to rotate, thereby driving the slider 7 to slide down along the slide groove 4, so that the connecting rod 9 drives the support plate 8 to rotate to the side perpendicular to the outer shell 1, so as to facilitate stable support of the outer shell 1. When the edge of the gap required for support is far away, the outer shell 1 can be supported by rotating the knob 5 on one side or both sides. The positioning sleeve 13 causes the anti-skid gasket on its surface to separate from the support plate 8, releasing the limit on the limit rod 12, and pulling the extension plate 10 away from the support plate 8 through the buckle groove 101, driving the guide plate 11 to slide to the outside of the support plate 8, and then rotating the positioning sleeve 13 to make the anti-skid gasket fit with the support plate 8, thereby achieving the limit fixation of the extension plate 10, thereby achieving the extension of the support distance, and subsequently turning the knob 5 to drive the slider 7 to rise, so that the connecting rod 9 drives the support plate 8 to rotate until it fits with the side of the outer shell 1. At this time, the connecting rod 9 is stored in the inner side of the slide groove 4, so that the support plate 8 is stored, which effectively reduces the space occupied by the device and facilitates the storage and carrying of the entire device.

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved steel bar protective layer thickness measuring device, comprising an outer shell (1), characterized in that: A handle (2) is fixedly mounted on the upper end of the outer shell (1), a detection rod (3) is arranged on the inner side of the outer shell (1), a slide groove (4) is opened on the left and right sides of the outer shell (1), a knob (5) is arranged above the slide groove (4), a screw rod (6) is arranged on the inner side of the slide groove (4), a slider (7) is arranged on the outer side of the screw rod (6), support plates (8) are arranged on the left and right sides of the lower end of the outer shell (1), a connecting rod (9) is rotatably connected to the upper end of the support plate (8), an extension plate (10) is arranged at one end of the support plate (8) away from the outer shell (1), a guide plate (11) is arranged on the inner side of the support plate (8), a limiting rod (12) is fixedly mounted on the front end of the guide plate (11), and a positioning sleeve (13) is arranged on the front end of the limiting rod (12).

2. The improved steel bar protective layer thickness measuring device according to claim 1 is characterized in that: The lower end of the detection rod (3) extends to the outside of the outer shell (1) through the guide groove, and the upper end of the detection rod (3) is located on the inner side of the outer shell (1) and is provided with a driving component.

3. The improved steel bar protective layer thickness measuring device according to claim 1 is characterized in that: The sliding groove (4) and the knob (5) are both symmetrically arranged in two, one end of the knob (5) is rotatably connected to the surface of the outer shell (1), and extends to the inner side of the outer shell (1) where a bevel gear (51) is fixedly installed.

4. The improved steel bar protective layer thickness measuring device according to claim 3 is characterized in that: The lower end of the screw rod (6) is rotatably connected to the inner side of the slide groove (4), and the upper end of the screw rod (6) extends to the inner side of the outer shell (1) where a second bevel gear (61) is fixedly installed. The second bevel gear (61) and the first bevel gear (51) are meshed with each other.

5. The improved steel bar protective layer thickness measuring device according to claim 1 is characterized in that: The surfaces of the slider (7) and the screw rod (6) are threadedly connected, and are slidably connected to the inner side of the slide groove (4). The support plate (8) and the connecting rod (9) are both symmetrically arranged in two. The support plate (8) and the surface of the outer shell (1) are rotatably connected via a hinge. The side of the slider (7) away from the outer shell (1) is rotatably connected to the upper end of the connecting rod (9).

6. The improved steel bar protective layer thickness measuring device according to claim 1 is characterized in that: The guide plate (11) is slidably connected to the inner side of the support plate (8); one end of the guide plate (11) away from the outer shell (1) extends to the outer side of the support plate (8) and is fixedly connected to the extension plate (10); a buckle groove (101) is provided at the upper end of the extension plate (10); and wear-resistant pads are provided at the lower ends of the extension plate (10) and the support plate (8).

7. The improved steel bar protective layer thickness measuring device according to claim 1 is characterized in that: The front side of the support plate (8) is provided with an adjustment slot (81), the front end of the limit rod (12) extends to the outside of the support plate (8) through the adjustment slot (81), and is threadedly connected to the inside of the positioning sleeve (13), and one end of the positioning sleeve (13) close to the support plate (8) is tightly fitted to the surface of the support plate (8) via an anti-slip gasket.

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