Rebar diameter measuring pliers

Abstract

The utility model provides a pair of steel bar diameter measuring pliers, and belongs to the technical field of steel bar diameter measurement. The steel bar diameter measuring clamp comprises a box body and a clamp handle, a measuring mechanism comprises a penetrating groove, an upper clamping clamp, a lower clamping clamp and a graduated scale, the penetrating groove is formed in the side wall of the box body, the upper clamping clamp is fixedly installed at the top of the inner wall of the box body, the lower clamping clamp is installed in the box body in a sliding mode, and the graduated scale is arranged in the penetrating groove. And the graduated scale is fixedly mounted at the bottom of the lower clamping forceps. According to the utility model, through the arrangement of the measuring mechanism, the reinforcing steel bar passes through the through groove, the lower clamping clamp is moved upwards, the graduated scale is driven to move upwards until the reinforcing steel bar is stably clamped, and the diameter of the reinforcing steel bar is obtained through calculation by observing the scales on the graduated scale and through the distance between the upper clamping clamp and the lower clamping clamp in an initial state; due to the fact that the width of the upper clamping pincers and the width of the lower clamping pincers are large, the area of the clamped reinforcing steel bar is larger, and obtained data are more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar diameter measurement, in particular to a steel bar diameter measuring pliers. Background Art

[0002] In construction projects, steel bar diameter measurement is a common data collection method. In order to ensure the quality of the project, the diameter requirements of steel bars are often very strict. During the construction process, the accuracy of the steel bar diameter is directly related to the bonding strength between concrete and steel bars and the bearing capacity of the components.

[0003] In the prior art, the diameter of steel bars is often measured with the help of some tools, such as steel bar diameter measuring pliers. However, when using this tool, due to the small jaws, the area of the steel bar that can be wrapped between the upper and lower jaws is limited. In addition, due to the influence of the threaded surface of the steel bar, the results obtained are often not accurate enough. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a steel bar diameter measuring pliers that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a steel bar diameter measuring pliers, comprising a box body and a pliers handle.

[0007] A measuring mechanism, comprising:

[0008] A through groove, the through groove being formed on the side wall of the box body;

[0009] An upper clamping clamp, wherein the upper clamping clamp is fixedly mounted on the top of the inner wall of the box body;

[0010] A lower clamping clamp is slidably mounted inside the box body;

[0011] A scale, the scale being fixedly mounted on the bottom of the lower clamping jaws, and the bottom of the scale penetrating to the bottom of the box body;

[0012] The shape of the bottom of the upper clamping clamp and the shape of the top of the lower clamping clamp are both set to be arc-shaped;

[0013] The locking mechanism is arranged inside the box body and is used to lock the lower clamping pliers.

[0014] In a preferred embodiment, the locking mechanism includes:

[0015] A moving rod, the moving rod being slidably disposed inside the box body and being located below the lower clamping jaw;

[0016] A locking wedge, the locking wedge being slidably disposed inside the moving rod;

[0017] The locking groove is formed at the bottom of the inner wall of the box body, and the locking wedge penetrates into the interior of the locking groove.

[0018] In a preferred embodiment, guide grooves are provided on the front and rear sides of the lower clamping clamp, and the shape of the guide groove is set to be a straight slot shape. A guide shaft is slidably installed inside the guide groove, and a guide rod is fixedly installed on the side of the guide shaft away from the central axis of the lower clamping clamp, and the bottom of the guide rod is fixedly connected to the top of the movable rod.

[0019] In a preferred solution, a limiting groove is provided on the inner wall of the box body, a limiting block is slidably installed inside the limiting groove, and the limiting block is fixedly connected to the lower clamping clamp.

[0020] In a preferred solution, the front side of the moving rod and the rear side of the pliers handle are fixedly connected, a receiving cavity is provided at the bottom of the moving rod, and the locking wedge is slidably installed inside the receiving cavity.

[0021] In a preferred solution, a spring is fixedly mounted on the top of the inner wall of the accommodating cavity, and the other end of the spring is fixedly connected to the top of the locking wedge.

[0022] In a preferred embodiment, an unlocking groove is provided on one side of the moving rod close to the central axis of the box body, the unlocking groove is communicated with the accommodating cavity, a plurality of locking grooves are provided, and the shape of the cross section of the locking groove is the same as the shape of the cross section of the lower part of the locking wedge.

[0023] In a preferred solution, an unlocking rod is slidably installed inside the unlocking groove, and the unlocking rod is fixedly connected to the locking wedge.

[0024] The utility model provides a steel bar diameter measuring pliers, the beneficial effects of which include:

[0025] 1. By setting up a measuring mechanism, pass the steel bar through the through slot, move the lower clamp upward, drive the scale upward, until the steel bar is firmly clamped, observe the scale on the scale, and calculate the diameter of the steel bar by the distance between the upper clamp and the lower clamp in the initial state. Since the width of the upper clamp and the lower clamp is larger, the area of the clamped steel bar is larger, and the data obtained is more accurate.

[0026] 2. By setting up a locking mechanism, the two moving rods are moved in opposite directions at the same time, driving the guide rod and the guide shaft to move in opposite directions. The guide shaft squeezes the inner wall of the guide groove, causing the lower clamp to move upward. When the moving rod moves, the locking wedge and the locking groove cooperate to prevent the moving rod from moving back, so that the staff does not need to watch the scale while continuing to exert force with the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the utility model;

[0029] Figure 2 A partial cross-sectional view of the box body is provided for an embodiment of the utility model;

[0030] Figure 3 An exploded view of a moving rod and a locking wedge is provided for an embodiment of the present utility model;

[0031] Figure 4 Provided for the implementation of the utility model Figure 3 A partial enlarged view of point A in the middle.

[0032] In the figure: 1. Box body; 2. Clamp handle; 3. Through slot; 4. Upper clamp; 5. Lower clamp; 6. Scale; 7. Moving rod; 8. Locking wedge; 9. Locking slot; 10. Guide slot; 11. Guide shaft; 12. Guide rod; 13. Limiting slot; 14. Limiting block; 15. Accommodating chamber; 16. Spring; 17. Unlocking slot; 18. Unlocking rod. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1-4The utility model provides a technical solution: a steel bar diameter measuring pliers, comprising a box body 1 and a clamp handle 2, a measuring mechanism comprising a through slot 3, an upper clamping clamp 4, a lower clamping clamp 5 and a scale 6, the through slot 3 is opened on the side wall of the box body 1, the upper clamping clamp 4 is fixedly mounted on the top of the inner wall of the box body 1, the lower clamping clamp 5 is slidably mounted inside the box body 1, the scale 6 is fixedly mounted on the bottom of the lower clamping clamp 5, and the bottom of the scale 6 passes through the bottom of the box body 1; the shape of the bottom of the upper clamping clamp 4 and the shape of the top of the lower clamping clamp 5 are both set to arc shape, and a locking mechanism is set inside the box body 1 for locking the lower clamping clamp 5. By setting the measuring mechanism, since the through slot 3 is set as the left and right through holes of the box body 1, The steel bar is passed through the through slot 3 and the lower clamping clamp 5 is moved upward. Since the shape of the bottom of the upper clamping clamp 4 and the shape of the top of the lower clamping clamp 5 are both set to be arc-shaped, it is easier to clamp the steel bar, and the upper clamping clamp 4 and the lower clamping clamp 5 are installed on the opposite sides thereof with anti-slip pads to increase the friction between the steel bar and the lower clamping clamp 5. When the lower clamping clamp 5 moves upward, it drives the scale 6 to move upward until the steel bar is firmly clamped. By observing the scale on the scale 6 and the distance between the upper clamping clamp 4 and the lower clamping clamp 5 in the initial state, the diameter of the steel bar is calculated. Since the width of the upper clamping clamp 4 and the lower clamping clamp 5 is large, the area of the clamped steel bar is larger, and the data obtained is more accurate.

[0035] Reference Figure 1-4 The locking mechanism includes a moving rod 7, a locking wedge 8 and a locking groove 9. The moving rod 7 is slidably arranged inside the box body 1. The moving rod 7 is located below the lower clamping clamp 5. The locking wedge 8 is slidably arranged inside the moving rod 7. The locking groove 9 is opened at the bottom of the inner wall of the box body 1. The locking wedge 8 passes through the interior of the locking groove 9. The front and rear sides of the lower clamping clamp 5 are provided with guide grooves 10. The shape of the guide groove 10 is set as a straight slot shape. A guide shaft 11 is slidably installed inside the guide groove 10. A guide rod 12 is fixedly installed on the side of the guide shaft 11 away from the central axis of the lower clamping clamp 5. The bottom of the guide rod 12 and The top of the moving rod 7 is fixedly connected, and a locking mechanism is provided to move the two moving rods 7 in opposite directions at the same time, driving the guide rod 12 and the guide shaft 11 to move in opposite directions. Since the guide groove 10 is tilted as a whole, the guide shaft 11 squeezes the inner wall of the guide groove 10, causing the lower clamping jaw 5 to move upward. When the moving rod 7 moves, the cooperation between the locking wedge 8 and the locking groove 9 prevents the moving rod 7 from moving back, so that after the lower clamping jaw 5 and the upper and lower clamping jaws 5 clamp the steel bar, the staff does not need to watch the scale while continuing to exert force with the other hand;

[0036] Reference Figure 1-4The inner wall of the box body 1 is provided with a limit groove 13, and a limit block 14 is slidably installed inside the limit groove 13. The limit block 14 is fixedly connected to the lower clamping clamp 5. By setting the limit groove 13 and the limit block 14, the moving stroke of the lower clamping clamp 5 is limited so that the lower clamping clamp 5 can only move in the up and down directions;

[0037] Reference Figure 1-4 The front side of the moving rod 7 is fixedly connected to the rear side of the clamp handle 2, and an accommodating chamber 15 is opened at the bottom of the moving rod 7, and the locking wedge 8 is slidably installed in the interior of the accommodating chamber 15. A spring 16 is fixedly installed on the top of the inner wall of the accommodating chamber 15, and the other end of the spring 16 is fixedly connected to the top of the locking wedge 8. By setting the accommodating chamber 15, the moving rod 7 drives the locking wedge 8 to move when it moves. Because the shape of the locking groove 9 fits the lower half of the locking wedge 8, and one side is set to an arc shape, the locking wedge 8 is squeezed by the locking groove 9 and retracted into the interior of the accommodating chamber 15, and then pops out by the rebound force of the spring 16, and so on. Because the other side of the locking wedge 8 is against the locking groove 9, the locking wedge 8 cannot move in the opposite direction, thereby making the moving rod 7 and the lower clamping clamp 5 unable to return to their original position;

[0038] Reference Figure 1-4 , an unlocking groove 17 is opened on the side of the moving rod 7 close to the central axis of the box body 1, and the unlocking groove 17 is communicated with the accommodating cavity 15. There are multiple locking grooves 9, and the shape of the cross section of the locking groove 9 is the same as the shape of the cross section of the lower part of the locking wedge 8. An unlocking rod 18 is slidably installed inside the unlocking groove 17, and the unlocking rod 18 is fixedly connected to the locking wedge 8. By setting the unlocking groove 17 and the unlocking rod 18, when the measurement is completed, the staff moves the unlocking rod 18 upward, thereby driving the locking wedge 8 to move upward, so that the locking wedge 8 is free from the restriction of the locking groove 9. At this time, the moving rod 7 is moved back to its original position, so that the lower clamping clamp 5 returns to its original position and the steel bar is removed.

[0039] Specifically, the working process or working principle of the steel bar diameter measuring pliers is as follows: when in use, the steel bar is passed through the through slot 3, and the two moving rods 7 are moved in opposite directions at the same time, driving the guide rod 12 and the guide shaft 11 to move in opposite directions. Since the guide slot 10 is tilted as a whole, the guide shaft 11 squeezes the inner wall of the guide slot 10, causing the lower clamping clamp 5 to move upward, driving the scale 6 to move upward until the steel bar is firmly clamped. By observing the scale on the scale 6 and the distance between the upper clamping clamp 4 and the lower clamping clamp 5 in the initial state, the diameter of the steel bar is calculated, and the moving rod 7 drives the lock when moving. The stop wedge 8 moves. Since the shape of the locking groove 9 matches the lower half of the locking wedge 8, and one side is set to an arc shape, the locking wedge 8 is squeezed by the locking groove 9 and retracted into the interior of the accommodating cavity 15. Then it pops out by the rebound force of the spring 16, and this process is repeated. Since the other side of the locking wedge 8 is against the locking groove 9, the locking wedge 8 cannot move in the opposite direction. When the measurement is completed, the staff moves the unlocking rod 18 upward, thereby driving the locking wedge 8 to move upward, so that the locking wedge 8 is free from the restriction of the locking groove 9. At this time, the moving rod 7 is moved back to its original position, so that the lower clamping clamp 5 returns to its original position and the steel bar is removed.

Claims

1. A steel bar diameter measuring pliers, comprising a box body (1) and a pliers handle (2), characterized in that: A measuring mechanism, comprising: A through groove (3), wherein the through groove (3) is provided on the side wall of the box body (1); An upper clamping clamp (4), wherein the upper clamping clamp (4) is fixedly mounted on the top of the inner wall of the box body (1); A lower clamping clamp (5), wherein the lower clamping clamp (5) is slidably mounted inside the box body (1); A scale (6), wherein the scale (6) is fixedly mounted on the bottom of the lower clamp (5), and the bottom of the scale (6) passes through the bottom of the box body (1); The shape of the bottom of the upper clamping clamp (4) and the shape of the top of the lower clamping clamp (5) are both set to be arc-shaped; A locking mechanism is provided inside the box body (1) and is used to lock the lower clamping pliers (5).

2. A steel bar diameter measuring pliers according to claim 1, characterized in that: The locking mechanism comprises: A moving rod (7), the moving rod (7) being slidably arranged inside the box body (1), the moving rod (7) being located below the lower clamping jaw (5); A locking wedge (8) is slidably arranged inside the moving rod (7); A locking groove (9) is provided at the bottom of the inner wall of the box body (1), and the locking wedge (8) penetrates into the interior of the locking groove (9).

3. A steel bar diameter measuring pliers according to claim 2, characterized in that: The front and rear sides of the lower clamping clamp (5) are both provided with guide grooves (10), the shape of the guide grooves (10) is set to be a straight slot shape, a guide shaft (11) is slidably installed inside the guide groove (10), a guide rod (12) is fixedly installed on the side of the guide shaft (11) away from the central axis of the lower clamping clamp (5), and the bottom of the guide rod (12) is fixedly connected to the top of the moving rod (7).

4. A steel bar diameter measuring pliers according to claim 1, characterized in that: A limiting groove (13) is provided on the inner wall of the box body (1), a limiting block (14) is slidably installed inside the limiting groove (13), and the limiting block (14) is fixedly connected to the lower clamping clamp (5).

5. The steel bar diameter measuring pliers according to claim 2, characterized in that: The front side of the moving rod (7) and the rear side of the clamp handle (2) are fixedly connected, and a receiving cavity (15) is provided at the bottom of the moving rod (7), and the locking wedge (8) is slidably installed inside the receiving cavity (15).

6. A steel bar diameter measuring pliers according to claim 5, characterized in that: A spring (16) is fixedly mounted on the top of the inner wall of the accommodating cavity (15), and the other end of the spring (16) is fixedly connected to the top of the locking wedge (8).

7. The steel bar diameter measuring pliers according to claim 5, characterized in that: An unlocking groove (17) is provided on one side of the moving rod (7) close to the central axis of the box body (1), and the unlocking groove (17) is communicated with the accommodating cavity (15). A plurality of locking grooves (9) are provided, and the shape of the cross section of the locking groove (9) is the same as the shape of the cross section of the lower part of the locking wedge (8).

8. The steel bar diameter measuring pliers according to claim 7, characterized in that: An unlocking rod (18) is slidably mounted inside the unlocking groove (17), and the unlocking rod (18) is fixedly connected to the locking wedge (8).

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