Steel bar spacing detection device

Abstract

The utility model discloses a steel bar spacing detection device which comprises a shell and a measuring scale, the top of the shell is provided with an installation cavity, the top wall of the installation cavity is fixedly provided with a fixing shaft, a sleeve is rotatably arranged in the installation cavity, a clockwork spring is arranged between the inner wall of the sleeve and the fixing shaft, and the outer wall of the installation cavity is fixedly provided with a fixing rod. A pull wire is slidably arranged in the fixing rod, one end of the pull wire is wound around the sleeve and fixedly connected with the side wall of the sleeve, sliding grooves are formed in the front side and the rear side in the shell in the left-right direction respectively, first through grooves are formed in the bottoms of the sliding grooves respectively, the two measuring rulers are slidably arranged in the sliding grooves respectively, and first scale marks are arranged at the tops of the measuring rulers. A holding frame penetrating through the first through groove is fixedly arranged at the bottoms of the sides, close to each other, of the two measuring rulers, a positioning groove is formed in the bottom of the holding frame, a first observation window penetrating to the top of the sliding groove is formed in the top of the shell, and the sleeve drives the two measuring rulers to move in the opposite directions through a transmission mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering detection, and in particular relates to a steel bar spacing detection device. Background Art

[0002] Rebar is one of the indispensable materials in construction projects. It is mainly used to improve the compression and tensile resistance of buildings. During the construction of steel bars, the spacing of the steel bars directly affects the overall stability and safety of the building. If the spacing is too large, it will lead to poor connectivity between the steel bars; if the spacing is too small, it will cause the steel bars to be misplaced, affecting the seismic resistance of the building. Therefore, it is necessary to provide a steel bar spacing detection device to measure the steel bar spacing.

[0003] A Chinese patent with publication number CN220288498U discloses an adjustable steel bar spacing measuring tool, which includes a shell, a fixed rod and a movable rod. The above scheme uses a first clamping groove provided on the fixed rod and a second clamping groove provided on the movable rod to respectively clamp two steel bars whose spacing needs to be measured. Since the movable rod is provided with scale lines, the spacing between the two steel bars can be quickly obtained by reading the scale lines on the movable rod during measurement.

[0004] When checking the spacing between steel bars on site, it is usually necessary to check the designed spacing between steel bars in conjunction with the drawings. However, when using the above solution, one needs to hold the shell with one hand and pull or press the moving rod with the other hand. It cannot be operated with one hand, resulting in the inspection personnel being unable to flip through the drawings while measuring the spacing between steel bars, resulting in low work efficiency. Utility Model Content

[0005] The utility model aims to provide a steel bar spacing detection device to solve the problem that the above solution cannot be operated with one hand.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A steel bar spacing detection device comprises a shell and a measuring ruler, the shell top has an installation cavity, the installation cavity top wall is fixedly provided with a fixed shaft, a sleeve is arranged in the installation cavity and rotates along the axial direction of the fixed shaft outside the fixed shaft, a clockwork spring is arranged between the inner wall of the sleeve and the fixed shaft, a fixed rod is fixedly provided on the outer wall of the installation cavity, a traction line is slidably arranged in the fixed rod, one end of the traction line is wound around the sleeve and fixedly connected with the side wall of the sleeve, the other end of the traction line is located in the fixed rod, the front and rear sides of the shell are respectively provided with slide grooves along the left and right directions, the bottom of the slide groove is respectively provided with a first through groove, the measuring ruler is provided with two, and is slidably arranged in one slide groove respectively, the top of the measuring ruler is provided with a first scale line, the bottom of the two measuring rulers close to each other is fixedly provided with a fixed holder penetrating the first through groove, the bottom of the fixed holder has a positioning groove, the top of the shell is provided with a first observation window that passes through to the top of the slide groove, and the sleeve drives the two measuring rulers to move in opposite directions through a transmission mechanism.

[0008] The principle and effect of this technical solution:

[0009] During measurement, the fixing rod is held so that the shell is located directly above the steel bar to be measured, and the traction line is pulled at the same time to make the traction line drive the sleeve to rotate, and then the two measuring rulers are driven to move in opposite directions through the transmission mechanism, until the fixing frames at the bottom of the two measuring rulers move directly above the corresponding steel bars to be measured and make the positioning groove clamp the corresponding steel bars, and the data of the first scale line is read through the first observation window located on the top of the shell to obtain the spacing between the corresponding steel bars to be measured.

[0010] Through the above arrangement, the sleeve is driven to rotate by pulling the traction line, and then the two measuring rulers are driven to move in opposite directions through the transmission mechanism, so that the surveyor can move the measuring ruler while holding the fixed rod, thereby achieving the purpose of measuring the spacing between steel bars with one hand and improving work efficiency.

[0011] In the utility model, the transmission mechanism includes a main gear, a rotating shaft, a first slave gear, a second slave gear and a rack, the main gear is fixedly arranged at the bottom of the sleeve in the horizontal direction, the rotating shaft is arranged in the housing in the vertical direction, the first slave gear is fixedly sleeved at the top of the rotating shaft and meshes with the main gear, the second slave gear is fixedly sleeved at the bottom of the rotating shaft, and the rack is fixedly arranged at the top of the measuring ruler in the left-right direction and meshes with the second slave gear. Through the above arrangement, the purpose of using the rotating sleeve to drive the two measuring rulers to move in opposite directions is achieved.

[0012] In the utility model, the fixed rod is arranged at an angle, an inner cavity is arranged on the upper part of the fixed rod, a second through groove is opened on the bottom wall of the inner cavity and penetrates to the outer wall of the fixed rod, a slider is slidably arranged in the inner cavity, a lever passing through the second through groove is fixedly arranged at the bottom of the slider, the other end of the traction line is fixedly connected to the slider, and a handle is fixedly arranged on the side wall of the fixed rod above the second through groove.

[0013] The principle and effect of this technical solution:

[0014] The lever is moved to drive the slider to slide in the inner cavity, thereby driving the traction line to move in the fixed rod. Through the above arrangement, the purpose of moving the lever to drive the sleeve to rotate is achieved.

[0015] In the utility model, the fixing rod is arranged at an angle, an inner cavity is arranged on the upper part of the fixing rod, a second through groove which penetrates to the outer wall of the fixing rod is opened on the bottom wall of the inner cavity, a slider is slidably arranged in the inner cavity, a lever which passes through the second through groove is fixedly arranged at the bottom of the slider, the other end of the traction line is wrapped around the slider and fixedly connected to the lower part of the inner cavity side wall, and a handle is fixedly arranged on the side wall of the fixing rod above the second through groove.

[0016] The principle and effect of this technical solution:

[0017] The lever is pushed to drive the slider to slide in the inner cavity, thereby opening the traction rope and causing the traction rope to move in the fixed rod.

[0018] Through the above arrangement, the stroke of the slider is shortened without reducing the upper limit of the measurable width, which further facilitates the detection personnel to move the slider and improves the practicality of the utility model.

[0019] In the present invention, a second scale line is arranged at the rear side of the measuring ruler, and a second observation window is arranged at the rear side of the housing, which penetrates the side wall of the chute. Through the above arrangement, when measuring the spacing of steel bars at a higher position, it is convenient for the inspection personnel to read the readings, further improving the practicality of the present invention.

[0020] In the present invention, convex lenses are fixedly arranged at both the first observation window and the second observation window. Through the above arrangement, the verticality of the first scale line or the second scale line can be magnified, which is convenient for the inspection personnel to read, and further improves the practicality of the present invention.

[0021] In the present invention, the positioning groove is arranged in a V shape. Through the above arrangement, it can be ensured that the center of the positioning groove and the axis of the steel bar are located in the same vertical plane, further improving the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front axonometric view of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a rear axonometric view of the first embodiment of the utility model;

[0024] Figure 3 This is an axonometric cross-sectional view of the first embodiment of the utility model;

[0025] Figure 4 This is a bottom-up axonometric view of Embodiment 1 of the present utility model;

[0026] Figure 5 This is an exploded view of some parts of the utility model;

[0027] Figure 6 This is an axonometric sectional view of the second embodiment of the utility model. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings and implementation methods: the figure numerals in the drawings of the specification include: 10, shell; 11, installation cavity; 111, fixed shaft; 12, sleeve; 13, spring; 14, fixed rod; 141, traction line; 142, inner cavity; 143, second through groove; 144, slider; 145, lever; 146, handle; 15, slide groove; 151, first through groove; 16, first observation window; 17, second observation window; 20, measuring ruler; 21, first scale line; 22, fixed support; 221, positioning groove; 23, second scale line; 31, main gear; 32, rotating shaft; 33, first slave gear; 34, second slave gear; 35, rack.

[0029] Example:

[0030] As attached Figure 1-5 As shown, the utility model discloses a steel bar spacing detection device, including a housing 10 and a measuring ruler 20, wherein the housing 10 has an installation cavity 11 on the top, a fixed shaft 111 is fixedly arranged on the top wall of the installation cavity 11, a sleeve 12 is arranged in the installation cavity 11 outside the fixed shaft 111 and axially rotates along the fixed shaft 111, a spring 13 is arranged between the inner wall of the sleeve 12 and the fixed shaft 111, a fixed rod 14 is fixedly arranged on the outer wall of the installation cavity 11, a traction line 141 is slidably arranged in the fixed rod 14, one end of the traction line 141 is wound around the sleeve 12 and fixedly connected to the side wall of the sleeve 12, and the other end of the traction line 141 is located at the fixed Inside the fixed rod 14, the front and rear sides of the shell 10 are respectively provided with a slide groove 15 along the left and right directions, and the bottom of the slide groove 15 is respectively provided with a first through groove 151. The measuring ruler 20 is provided with two, and is slidably set in one slide groove 15 respectively. The top of the measuring ruler 20 is provided with a first scale line 21. The bottom of the two measuring rulers 20 close to each other is fixed with a fixed holder 22 penetrating the first through groove 151, and the bottom of the fixed holder 22 has a positioning groove 221. The top of the shell 10 is provided with a first observation window 16 that passes through the top of the slide groove 15, and the sleeve 12 drives the two measuring rulers 20 to move in opposite directions through a transmission mechanism.

[0031] In this embodiment, the transmission mechanism includes a main gear 31, a rotating shaft 32, a first slave gear 33, a second slave gear 34 and a rack 35. The main gear 31 is fixedly arranged at the bottom of the sleeve 12 in the horizontal direction, the rotating shaft 32 is arranged in the housing 10 for vertical rotation, the first slave gear 33 is fixedly sleeved on the top of the rotating shaft 32 and meshes with the main gear 31, the second slave gear 34 is fixedly sleeved on the bottom of the rotating shaft 32, and the rack 35 is fixedly arranged at the top of the measuring ruler 20 in the left-right direction and meshes with the second slave gear 34.

[0032] In this embodiment, the fixing rod 14 is arranged at an angle, and an inner cavity 142 is arranged on the upper part of the fixing rod 14. A second through groove 143 which penetrates to the outer wall of the fixing rod 14 is opened on the bottom wall of the inner cavity 142. A slider 144 is slidably arranged in the inner cavity 142, and a lever 145 which passes through the second through groove 143 is fixedly arranged at the bottom of the slider 144. The other end of the traction line 141 is fixedly connected to the slider 144, and a handle 146 is fixedly arranged on the side wall of the fixing rod 14 above the second through groove 143.

[0033] In this embodiment, a second scale line 23 is disposed at the rear side of the measuring ruler 20 , and a second observation window 17 penetrating to the side wall of the slide slot 15 is disposed at the rear side of the housing 10 .

[0034] In this embodiment, convex lenses (not shown in the figure) are fixedly disposed at both the first observation window 16 and the second observation window 17 .

[0035] In this embodiment, the positioning groove 221 is configured to be V-shaped.

[0036] The specific implementation process is as follows:

[0037] During measurement, the fixing rod 14 is held so that the housing 10 is located directly above the steel bar to be measured, and the traction line 141 is pulled at the same time, so that the traction line 141 drives the sleeve 12 to rotate, and then the two measuring rulers 20 are driven to move in opposite directions through the transmission mechanism, until the fixing frames 22 at the bottom of the two measuring rulers 20 respectively move directly above the corresponding steel bars to be measured and the positioning grooves 221 clamp the corresponding steel bars, and the data of the first scale line 21 is read through the first observation window 16 located at the top of the housing 10, so as to obtain the spacing between the corresponding steel bars to be measured.

[0038] The lever 145 is moved to drive the slider 144 to slide in the inner cavity 142 , thereby driving the pulling wire 141 to move in the fixing rod 14 .

[0039] Second embodiment:

[0040] As attached Figure 6As shown, compared with the first embodiment, the difference of this embodiment is that: in this embodiment, the fixing rod 14 is arranged obliquely, an inner cavity 142 is arranged on the upper part of the fixing rod 14, and a second through groove 143 which penetrates to the outer wall of the fixing rod 14 is opened on the bottom wall of the inner cavity 142, a slider 144 is slidably arranged in the inner cavity 142, and a lever 145 which passes through the second through groove 143 is fixedly arranged at the bottom of the slider 144, the other end of the traction line 141 is wrapped around the slider 144 and fixedly connected to the lower part of the side wall of the inner cavity 142, and a handle 146 is fixedly arranged on the side wall of the fixing rod 14 above the second through groove 143.

[0041] The specific implementation process is as follows:

[0042] The lever 145 is moved to drive the slider 144 to slide in the inner cavity 142 , thereby opening the traction rope and causing the traction rope to move in the fixing rod 14 .

[0043] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A steel bar spacing detection device, characterized in that: include: A housing, wherein the top of the housing has an installation cavity, a fixed shaft is fixedly arranged on the top wall of the installation cavity, a sleeve is arranged in the installation cavity and rotates along the axial direction of the fixed shaft outside the fixed shaft, a spring is arranged between the inner wall of the sleeve and the fixed shaft, a fixed rod is fixedly arranged on the outer wall of the installation cavity, a traction line is slidably arranged in the fixed rod, one end of the traction line is wound around the sleeve and fixedly connected to the side wall of the sleeve, and the other end of the traction line is located in the fixed rod, and slide grooves are respectively arranged on the front and rear sides of the housing along the left and right directions, and the bottom of the slide grooves are respectively provided with first through grooves; The measuring ruler is provided with two measuring rulers, and is slidably arranged in a slide groove respectively, a first scale line is arranged on the top of the measuring ruler, a fixed holder penetrating the first through groove is fixedly arranged on the bottom of the two measuring rulers close to each other, the bottom of the fixed holder has a positioning groove, a first observation window penetrating to the top of the slide groove is arranged on the top of the shell body, and the sleeve drives the two measuring rulers to move in opposite directions through a transmission mechanism.

2. The steel bar spacing detection device according to claim 1, characterized in that: The transmission mechanism includes a main gear, a rotating shaft, a first slave gear, a second slave gear and a rack. The main gear is fixedly arranged at the bottom of the sleeve in the horizontal direction, the rotating shaft is arranged in the shell for vertical rotation, the first slave gear is fixedly sleeved on the top of the rotating shaft and meshes with the main gear, the second slave gear is fixedly sleeved on the bottom of the rotating shaft, and the rack is fixedly arranged on the top of the measuring ruler in the left-right direction and meshes with the second slave gear.

3. The steel bar spacing detection device according to claim 2, characterized in that: The fixing rod is arranged at an angle, an inner cavity is arranged on the upper part of the fixing rod, a second through groove is opened on the bottom wall of the inner cavity and penetrates to the outer wall of the fixing rod, a slider is slidably arranged in the inner cavity, a lever passing through the second through groove is fixedly arranged at the bottom of the slider, the other end of the traction line is fixedly connected to the slider, and a handle is fixedly arranged on the side wall of the fixing rod above the second through groove.

4. The steel bar spacing detection device according to claim 2, characterized in that: The fixing rod is arranged at an angle, an inner cavity is arranged on the upper part of the fixing rod, a second through groove which penetrates to the outer wall of the fixing rod is opened on the bottom wall of the inner cavity, a slider is arranged for sliding in the inner cavity, a lever which passes through the second through groove is fixedly arranged at the bottom of the slider, the other end of the traction line is wound around the slider and fixedly connected to the lower part of the side wall of the inner cavity, and a handle is fixedly arranged on the side wall of the fixing rod above the second through groove.

5. The steel bar spacing detection device according to claim 3 or 4, characterized in that: The rear side of the measuring ruler is provided with a second scale line, and the rear side of the shell is provided with a second observation window penetrating to the side wall of the slide slot.

6. The steel bar spacing detection device according to claim 5, characterized in that: Convex lenses are fixedly arranged at both the first observation window and the second observation window.

7. The steel bar spacing detection device according to claim 6, characterized in that: The positioning groove is arranged in a V shape.

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