Inner diameter measurer

Abstract

The utility model discloses an inner diameter measurer which comprises a mounting plate, four clamping assemblies are arranged in the mounting plate, each clamping assembly comprises a lead screw, a moving block and a clamping plate, four moving grooves distributed at equal intervals are formed in the mounting plate, and inner cavities of the moving grooves are rotationally connected with the lead screws through bearings. By arranging a clamping assembly and a rotating disc wheel, four clamping plates drive an anti-skid pad to be close to the outer wall of a flange, so that flanges of different sizes can be conveniently clamped and fixed, and the measurement stability is improved; by arranging the rotating assembly, the four fixing screws are sequentially rotated, the fixing screws rotate to drive the two second connecting blocks to rotate, and under the action of the first connecting blocks and the fixing screws, the rotating angles of the four clamping plates and the measuring rod are fixed, so that the measuring rod and the four clamping plates are stored and folded into the mounting plate and are convenient to place; the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flange production, and in particular to an inner diameter measuring device. Background Art

[0002] Flange is a part that connects shafts to each other and is used to connect pipe ends. Flange connection or flange joint refers to a detachable connection in which flange, gasket and bolts are connected to each other as a combined sealing structure. There are holes on the flange, and bolts connect the two flanges tightly. During the production process, a measuring ruler (such as a vernier caliper or micrometer, etc.) is generally used to measure the inner diameter of the processed orifice to determine whether it meets the processing size requirements.

[0003] In the production process of the existing inner diameter measuring device flange, since the flange opening is the center of the circle, the general measuring ruler cannot be attached to the inner wall of the opening for measurement, and it is not convenient to clamp and fix flanges of different sizes. The measurement stability is poor, resulting in a deviation between the actual measured value and the inner diameter of the flange opening. Therefore, an inner diameter measuring device is proposed to address the above problems. Summary of the invention

[0004] In this embodiment, an inner diameter measuring device is provided to solve the problem that during the production process of the existing inner diameter measuring device, since the flange hole is the center of the circle, a general measuring ruler cannot be attached to the inner wall of the hole for measurement, and it is not convenient to clamp and fix flanges of different sizes. The measurement stability is poor, which leads to a deviation between the actual measured value and the inner diameter of the flange hole.

[0005] According to one aspect of the present application, an inner diameter measuring device is provided, including a mounting plate, four clamping assemblies are arranged inside the mounting plate, and the clamping assemblies include a screw rod, a movable block, and a clamping plate. Four movable grooves distributed equidistantly are opened inside the mounting plate, the inner cavity of the movable groove is rotatably connected to a screw rod through a bearing, the outer surface of the screw rod is threadedly connected to the movable block, a clamping plate is arranged at the bottom end of the movable block, sliding grooves are opened on both sides of the movable groove, and sliders are fixedly installed at both ends of the movable block, and two sliders are slidably connected to two sliding grooves respectively.

[0006] Furthermore, an anti-slip pad is fixedly installed on one side of the four clamping plates.

[0007] Furthermore, a fixing groove is provided inside the mounting plate, and one end of each of the four screw rods extends to the inner cavity of the fixing groove and a driven gear is fixedly mounted thereon.

[0008] Furthermore, a fixing cylinder is fixedly installed on the top of the mounting plate, the tops of the four driven gears are meshed and connected to the same driving gear, a rotating rod is fixedly installed on the top of the driven gear, the rotating rod passes through the mounting plate and the fixing cylinder and is fixedly installed with a disc wheel, and the rotating rod is rotatably connected to the fixing cylinder and the mounting plate through a bearing.

[0009] Furthermore, an anti-slip sleeve is fixedly connected to the outer surface of the fixing tube.

[0010] Furthermore, a measuring component is provided inside the mounting plate, and the measuring component includes a threaded rod, a threaded block, scale lines and a pointer. A mounting groove is provided inside the mounting plate, and a threaded rod is rotatably connected to the inside of the mounting plate through a bearing, and a threaded block is threadedly connected to the outer surface of the threaded rod, and limiting grooves are provided on both side walls of the mounting groove, and limiting blocks are fixedly installed on both sides of the threaded block, and the two limit blocks are respectively slidably connected to the two limit grooves, and a pointer and a measuring rod are fixedly installed on the top and bottom ends of the threaded block, respectively, and scale lines are provided on the top of the mounting plate.

[0011] Furthermore, a rotating assembly is provided at the bottom end of the movable block, and the rotating assembly includes a first connecting block, a second connecting block and a fixed screw. The first connecting block is fixedly installed at the bottom end of the movable block, and two second connecting blocks are fixedly installed at the top end of the clamping plate. The same fixed screw is provided inside the second connecting block and the two first connecting blocks, and the fixed screw is fixedly connected to the two second connecting blocks, and the first connecting block is threadedly connected to the fixed screw.

[0012] Through the above-mentioned embodiments of the present application, by setting a clamping assembly and rotating the disc wheel, the four clamping plates drive the anti-slip pad to approach the outer wall of the flange, thereby facilitating the clamping and fixing of flanges of different sizes, thereby improving the stability of the measurement; by setting a rotating assembly, the four fixing screws are rotated in turn, and the rotation of the fixing screws drives the two second connecting blocks to rotate. Under the action of the first connecting block and the fixing screw, the rotation angle of the four clamping plates and the measuring rod is fixed, so that the measuring rod and the four clamping plates are stored and folded into the inside of the mounting plate, which is convenient for placement, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the planar internal structure of an embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the internal structure of a mounting plate according to an embodiment of the present application;

[0017] Figure 4 This is a schematic diagram of a top view of an embodiment of the present application;

[0018] Figure 5 This is a schematic diagram of the internal structure of a mobile trousers rack and a clamping plate according to an embodiment of the present application.

[0019] In the figure: 1, clamping plate, 2, fixed screw, 3, moving block, 4, pointer, 5, mounting plate, 6, driven gear, 7, driving gear, 8, rotating rod, 9, disc wheel, 10, anti-slip sleeve, 11, fixed cylinder, 12, mounting groove, 13, screw rod, 14, movable groove, 15, first connecting block, 16, anti-slip pad, 17, threaded block, 18, threaded rod, 19, handwheel, 20, fixed groove, 21, limit groove, 22, limit block; 23, slide groove; 24, slider; 25, second connecting block; 26, scale line; 27, measuring rod. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the human resource management used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0022] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0023] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0024] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] See also Figure 1-5 As shown, an inner diameter measuring device includes a mounting plate 5, four clamping assemblies are arranged inside the mounting plate 5, and the clamping assemblies include a screw rod 13, a moving block 3, and a clamping plate 1. Four equidistantly distributed movable grooves 14 are opened inside the mounting plate 5, the inner cavity of the movable groove 14 is rotatably connected with the screw rod 13 through a bearing, the outer surface of the screw rod 13 is threadedly connected with the moving block 3, the bottom end of the moving block 3 is provided with a clamping plate 1, both sides of the movable groove 14 are opened with sliding grooves 23, both ends of the moving block 3 are fixedly installed with sliders 24, and the two sliders 24 are slidably connected with the two sliding grooves 23 respectively.

[0027] An anti-slip pad 16 is fixedly mounted on one side of the four clamping plates 1 .

[0028] A fixing groove 12 is formed inside the mounting plate 5 , and one end of each of the four screw rods 13 extends to the inner cavity of the fixing groove 12 , and a driven gear 6 is fixedly mounted thereon.

[0029] A fixed cylinder 11 is fixedly installed on the top of the mounting plate 5, and the tops of the four driven gears 6 are meshed and connected to the same driving gear 7. A rotating rod 8 is fixedly installed on the top of the driven gear 6. The rotating rod 8 passes through the mounting plate 5 and the fixed cylinder 11 and is fixedly installed with a disc wheel 9. The rotating rod 8 is rotatably connected to the fixed cylinder 11 and the mounting plate 5 through a bearing.

[0030] The outer surface of the fixing tube 11 is fixedly connected with an anti-slip sleeve 10 .

[0031] A measuring assembly is provided inside the mounting plate 5, and the measuring assembly includes a threaded rod 18, a threaded block 17, scale lines 26 and a pointer 4. A mounting groove 20 is provided inside the mounting plate 5, and the threaded rod 18 is rotatably connected to the inside of the mounting plate 5 through a bearing, and the threaded block 17 is threadedly connected to the outer surface of the threaded rod 18, and limiting grooves 21 are provided on both side walls of the mounting groove 20, and limiting blocks 22 are fixedly installed on both sides of the threaded block 17, and the two limiting blocks 22 are respectively slidably connected to the two limiting grooves 21, and the pointer 4 is fixedly installed on the top of the threaded block 17, and scale lines 26 are provided on the top of the mounting plate 5.

[0032] A rotating assembly is provided at the bottom end of the movable block 3, and the rotating assembly includes a first connecting block 15, a second connecting block 25 and a fixed screw 2. The first connecting block 15 is fixedly installed at the bottom end of the movable block 3, and two second connecting blocks 25 are fixedly installed at the top end of the clamping plate 1. The same fixed screw 2 is provided inside the second connecting block 25 and the two first connecting blocks 15. The fixed screw 2 is fixedly connected to the two second connecting blocks 25, and the first connecting block 15 is threadedly connected to the fixed screw 2.

[0033] When the present application is in use, the electronic components appearing in the present application are all externally connected to a power supply and a control switch, and the device is moved to a suitable area so that the four clamping plates 1 are located outside the flange, and at the same time; the disc wheel 9 is rotated, and the rotation of the disc wheel 9 drives the rotating rod 8 to rotate, and the rotation of the rotating rod 8 drives the driving gear 7 to rotate, and the rotation of the driving gear 7 drives the four driven gears 6 to rotate, and the four driven gears 6 respectively drive the four screw rods 13 to rotate. Under the action of the slide groove 23 and the slider 24, the moving block 3 does not rotate with the rotation of the screw rod, and the screw rod 13 rotates, and the moving block 3 moves linearly along the surface of the screw rod 13, so that the four clamping plates 1 drive the anti-slip pad 16 to approach the outer wall of the flange, thereby facilitating the clamping and fixing of flanges of different sizes, thereby improving the stability of the measurement; when measuring, turn the hand wheel 19 The rotation of the handwheel 19 drives the threaded rod 18 to rotate. Under the cooperation of the limit block 22 and the limit groove 21, the threaded block 17 does not rotate with the rotation of the threaded rod 18. The threaded rod 18 rotates, and the threaded block 17 moves linearly along the surface of the threaded rod 18. The threaded block 17 drives the measuring rod 1 to move, so that the measuring rod 1 abuts against the inner wall of the flange, thereby facilitating the measurement of the inner diameter of the flange; when the measuring rod 1 and the clamping plate 1 need to be stored, the four fixed screws 2 are rotated in turn, and the rotation of the fixed screws 2 drives the two second connecting blocks 25 to rotate. Under the action of the first connecting block 15 and the fixed screw 2, the rotation angles of the four clamping plates 1 and the measuring rod 27 are fixed, so that the measuring rod 27 and the four clamping plates 1 are stored and folded into the inside of the mounting plate 6, which is convenient for placement and improves the practicality of the device.

[0034] The benefits of this application are:

[0035] 1. By setting a clamping assembly, the disc wheel 9 is rotated, the disc wheel 9 drives the rotating rod 8 to rotate, the rotating rod 8 drives the driving gear 7 to rotate, the driving gear 7 drives the four driven gears 6 to rotate, and the four driven gears 6 respectively drive the four screw rods 13 to rotate. Under the action of the slide groove 23 and the slider 24, the moving block 3 does not rotate with the rotation of the screw rod. The screw rod 13 rotates, and the moving block 3 moves linearly along the surface of the screw rod 13, so that the four clamping plates 1 drive the anti-slip pad 16 to approach the outer wall of the flange, so as to facilitate the clamping and fixing of flanges of different sizes, thereby improving the stability of measurement;

[0036] 2. By setting a rotating component, the four fixed screws 2 are rotated in sequence. The rotation of the fixed screws 2 drives the two second connecting blocks 25 to rotate. Under the action of the first connecting block 15 and the fixed screws 2, the rotation angles of the four clamping plates 1 and the measuring rod 27 are fixed, so that the measuring rod 27 and the four clamping plates 1 can be stored and folded into the inside of the mounting plate 6 for easy placement, thereby improving the practicability of the device.

[0037] The circuits, electronic components and modules involved are all prior art, and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods. The above is only a preferred embodiment of this application and is not intended to limit this application. For those skilled in the art, this application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. An inner diameter measuring device, comprising a mounting plate (5), characterized in that: Four clamping assemblies are arranged inside the mounting plate (5), and the clamping assemblies include a screw rod (13), a movable block (3), and a clamping plate (1). Four movable grooves (14) are arranged inside the mounting plate (5) and are distributed at equal intervals. The inner cavity of the movable groove (14) is rotatably connected to the screw rod (13) through a bearing. The outer surface of the screw rod (13) is threadedly connected to the movable block (3). The bottom end of the movable block (3) is provided with a clamping plate (1). Slide grooves (23) are arranged on both sides of the movable groove (14). Slide blocks (24) are fixedly installed at both ends of the movable block (3). The two slide blocks (24) are respectively slidably connected to the two slide grooves (23).

2. The inner diameter measuring device according to claim 1, characterized in that: An anti-slip pad (16) is fixedly mounted on one side of each of the four clamping plates (1).

3. The inner diameter measuring device according to claim 1, characterized in that: A fixing groove (12) is provided inside the mounting plate (5), and one end of each of the four screw rods (13) extends to the inner cavity of the fixing groove (12) and is fixedly mounted with a driven gear (6).

4. The inner diameter measuring device according to claim 3, characterized in that: A fixing cylinder (11) is fixedly mounted on the top of the mounting plate (5); the tops of the four driven gears (6) are meshedly connected to the same driving gear (7); a rotating rod (8) is fixedly mounted on the top of the driven gear (6); the rotating rod (8) passes through the mounting plate (5) and the fixing cylinder (11) and is fixedly mounted with a disc wheel (9); the rotating rod (8) is rotatably connected to the fixing cylinder (11) and the mounting plate (5) via a bearing.

5. The inner diameter measuring device according to claim 4, characterized in that: An anti-slip sleeve (10) is fixedly connected to the outer surface of the fixing cylinder (11).

6. The inner diameter measuring device according to claim 1, characterized in that: A measuring assembly is arranged inside the mounting plate (5), and the measuring assembly comprises a threaded rod (18), a threaded block (17), a scale line (26) and a pointer (4). A mounting groove (20) is arranged inside the mounting plate (5), and the threaded rod (18) is rotatably connected to the mounting plate (5) through a bearing. The threaded block (17) is threadedly connected to the outer surface of the threaded rod (18). Limiting grooves (21) are arranged on both side walls of the mounting groove (20), and limiting blocks (22) are fixedly installed on both sides of the threaded block (17). The two limiting blocks (22) are respectively slidably connected to the two limiting grooves (21). A pointer (4) is fixedly installed on the top of the threaded block (17), and a scale line (26) is arranged on the top of the mounting plate (5).

7. The inner diameter measuring device according to claim 1, characterized in that: A rotating assembly is arranged at the bottom end of the movable block (3), and the rotating assembly comprises a first connecting block (15), a second connecting block (25) and a fixed screw (2); the first connecting block (15) is fixedly mounted at the bottom end of the movable block (3); two second connecting blocks (25) are fixedly mounted at the top end of the clamping plate (1); the same fixed screw (2) is arranged inside the second connecting block (25) and the two first connecting blocks (15); the fixed screw (2) is fixedly connected to the two second connecting blocks (25); and the first connecting block (15) is threadedly connected to the fixed screw (2).

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