CN217877388U - High-precision measuring scale capable of extending measuring length range - Google Patents

Abstract

The utility model belongs to the field of rulers, in particular to a high-precision measuring ruler that can extend the measurement length range. The measurement range of the existing ruler is fixed. When measuring objects beyond the range, multiple measurements are required, and the measurement range is large. The ruler is not convenient enough to carry, the following proposal is now proposed, which includes an outer ruler, the inner wall of the outer ruler is slidably connected to an inner cylinder, one side of the inner cylinder is fixedly connected to a first fixing plate, and the first fixing plate One side of the plate is provided with a first extension assembly for extending the measurement range; the top inner wall of the inner cylinder is slidably connected with a second fixing plate, and one side of the second fixing plate is provided with a second extension for extending the measurement range Assemblies, in the utility model, the measurement range of the device can be extended through the first extension assembly and the second extension assembly, which is convenient to use. When not in use, the first inner ruler and the second inner ruler can be retracted to the inside of the outer ruler , easy to carry, does not take up space.

Description

A Highly Accurate Measuring Ruler with Extended Measuring Length Range

technical field

The utility model relates to the technical field of rulers, in particular to a high-precision measuring ruler capable of extending the measuring length range.

Background technique

A ruler, also known as a measuring ruler or a scale, is a tool used to draw line segments (especially straight ones) and measure lengths. There are usually graduations on the ruler to measure the length. Some rulers have special shapes such as letters or circular holes in the middle, which are convenient for users to draw pictures. They are usually used to measure and calculate lengths. They are generally divided into tape measures, vernier calipers, squares, and straightedges.

The existing ruler has the following defects in use:

1. The measurement range of the ruler is fixed. When measuring objects beyond the range, multiple measurements are required, which is inconvenient to use;

2. A ruler with a large measuring range is not convenient to carry; therefore, we propose a high-precision measuring ruler that can extend the measuring length range to solve the above-mentioned problems.

Utility model content

The purpose of this utility model is to solve the problem that the measurement range of the ruler in the prior art is fixed, and when measuring objects beyond the range, multiple measurements are required, it is inconvenient to use, and the ruler with a large measurement range is not convenient enough to carry. A high-precision scale that can extend the range of measuring length is proposed.

In order to achieve the above object, the utility model adopts the following technical solutions:

A high-precision measuring scale that can extend the range of measuring lengths, including an outer ruler, the inner wall of the outer ruler is slidably connected to an inner cylinder, one side of the inner cylinder is fixedly connected to a first fixing plate, and the first fixing plate One side is provided with a first extension component for extending the measurement range;

A second fixing plate is slidably connected to the top inner wall of the inner cylinder, and a second extension assembly for extending the measurement range is provided on one side of the second fixing plate.

Preferably, the first extension assembly includes two symmetrically arranged second positioning rods fixedly connected to one side of the first fixing plate, and the outer wall sliding sleeves of the two second positioning rods are provided with the same first inner ruler , Two first compression springs arranged symmetrically are fixedly connected between the first inner ruler and the first fixing plate, and the first compression springs are sheathed on the second positioning rod for extending the measuring range of the device.

Preferably, the second extension assembly includes two first positioning rods that are fixedly connected to one side of the second fixing plate and symmetrically arranged, and the outer wall sliding sleeves of the two first positioning rods are provided with the same second inner ruler, Two second compression springs arranged symmetrically are fixedly connected between the second inner ruler and the second fixing plate, a handle is fixedly connected to one side of the second inner ruler, and the second compression spring is sleeved on the second inner ruler. On a positioning rod, one side of the inner cylinder is provided with a gap used in conjunction with the second inner ruler, which is used to extend the measuring range of the device again for ease of use.

Preferably, one side of the first inner ruler is provided with a rectangular hole, the inner wall of the first inner ruler is fixedly penetrated by a clamp rod, one side of the inner cylinder is provided with a second round hole, and the second inner One side of the ruler is provided with a circular groove, the clamp rod slides through the second circular hole and engages with the circular groove, and one side of the outer ruler is provided with a first circular hole engaged with the clamp rod, which can be fixed The second inner chi can also fix the first inner chi in the inside of the outer chi.

Preferably, one side of the second inner ruler is provided with a card slot, and one side of the first inner ruler is fixedly connected with a card plate engaged with the card slot, for fixing the second inner ruler and the first inner ruler. ruler.

Preferably, one side of the outer ruler, the second inner ruler and the first inner ruler are all provided with matching scale lines, which can be connected for use.

Compared with the prior art, the beneficial effects of the utility model are:

1. Pull out the inner cylinder and the first inner ruler through the clamping plate. At this time, the clamp rod passes through the second round hole and engages with the circular groove. The second inner ruler, the inner cylinder and the first inner ruler cannot be separated. Move, when both the first inner ruler and the inner cylinder move out to the outside of the outer ruler, the first compression spring will eject the first inner ruler, and at this time, the first inner ruler drives the clamping rod into the first round hole, and the rectangular hole Cooperate with one side of the outer ruler. At this time, the first inner ruler and the outer ruler are connected together, and the scales on the first inner ruler and the outer ruler are connected to extend the measurement range;

2. At this time, the clamp rod is moved out of the circular groove, and the second inner ruler is no longer restricted. The second inner ruler and the second fixing plate can be pulled out through the handle as needed. When the second fixing plate moves out to the first inner ruler On one side of the ruler, the second inner ruler moves laterally along the gap under the elastic force of the second compression spring, and at the same time, the card groove engages with the clamping plate, and the scales on the first inner ruler and the second inner ruler side are connected. Extend the measuring range again.

In the utility model, the measuring range of the device can be extended through the first extension assembly and the second extension assembly, which is convenient for use. When not in use, the first inner ruler and the second inner ruler can be retracted to the inside of the outer ruler, which is convenient Portable, does not take up space.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a high-precision measuring ruler that can extend the measurement length range proposed by the utility model;

Fig. 2 is a three-dimensional cross-sectional structural schematic diagram of a high-precision measuring ruler that can extend the measurement length range proposed by the utility model;

Fig. 3 is the structural representation when the device is deployed in the utility model;

Fig. 4 is a partial structural schematic diagram of the first angle of view of the first inner ruler and the second inner ruler in the utility model;

Fig. 5 is a partial structural schematic diagram of the second viewing angle of the first inner ruler and the second inner ruler in the present invention.

In the figure: 1. Outer ruler; 2. First round hole; 3. Clamping plate; 4. Second inner ruler; 5. First inner ruler; 6. Rectangular hole; 7. Handle; 8. First fixing plate; 9. The first compression spring; 10. The second fixed plate; 11. The second compression spring; 12. The inner cylinder; 13. The clamp rod; 14. The second round hole; Notch; 18, the first positioning rod; 19, the second positioning rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying 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 them. example.

Embodiment one

Referring to Figures 1-5, a high-precision measuring scale that can extend the measurement length range includes an outer ruler 1, the inner wall of the outer ruler 1 is slidably connected to an inner cylinder 12, and one side of the inner cylinder 12 is fixedly connected to a first fixing plate 8 One side of the first fixed plate 8 is provided with a first extension assembly for extending the measurement range, the first extension assembly includes two second positioning rods 19 fixedly connected to one side of the first fixed plate 8 and symmetrically arranged, the two The outer wall sliding sleeve of the second positioning rod 19 is provided with the same first inner chi 5, and is fixedly connected with two first compression springs 9 that are symmetrically arranged between the first inner chi 5 and the first fixed plate 8, and the first compression spring 9 is sleeved on the second positioning rod 19 for extending the measurement range of the device;

The top inner wall of the inner cylinder 12 is slidably connected with a second fixed plate 10, and one side of the second fixed plate 10 is provided with a second extension assembly for extending the measurement range, and the second extension assembly includes a fixed connection on one side of the second fixed plate 10. The two first positioning rods 18 that are symmetrically arranged, the outer wall sliding sleeves of the two first positioning rods 18 are provided with the same second inner ruler 4, and the second inner ruler 4 and the second fixed plate 10 are fixedly connected with a symmetrical arrangement. There are two second compression springs 11, one side of the second inner ruler 4 is fixedly connected with the handle 7, the second compression spring 11 is sleeved on the first positioning rod 18, and one side of the inner tube 12 is provided with the second inner tube. The notch 17 used in conjunction with the ruler 4 is used to extend the measuring range of the device again for ease of use.

Embodiment two

Referring to Figures 1-5, a high-precision measuring scale that can extend the measurement length range includes an outer ruler 1, the inner wall of the outer ruler 1 is slidably connected to an inner cylinder 12, and one side of the inner cylinder 12 is fixedly connected to a first fixing plate 8 One side of the first fixed plate 8 is provided with a first extension assembly for extending the measurement range, the first extension assembly includes two second positioning rods 19 fixedly connected to one side of the first fixed plate 8 and symmetrically arranged, the two The outer wall sliding sleeve of the second positioning rod 19 is provided with the same first inner chi 5, and is fixedly connected with two first compression springs 9 that are symmetrically arranged between the first inner chi 5 and the first fixed plate 8, and the first compression spring 9 is sleeved on the second positioning rod 19 for extending the measurement range of the device;

The top inner wall of the inner cylinder 12 is slidably connected with a second fixed plate 10, and one side of the second fixed plate 10 is provided with a second extension assembly for extending the measurement range, and the second extension assembly includes a fixed connection on one side of the second fixed plate 10. The two first positioning rods 18 that are symmetrically arranged, the outer wall sliding sleeves of the two first positioning rods 18 are provided with the same second inner ruler 4, and the second inner ruler 4 and the second fixed plate 10 are fixedly connected with a symmetrical arrangement. There are two second compression springs 11, one side of the second inner ruler 4 is fixedly connected with the handle 7, the second compression spring 11 is sleeved on the first positioning rod 18, and one side of the inner tube 12 is provided with the second inner tube. The notch 17 used in conjunction with the ruler 4 is used to extend the measuring range of the device again for ease of use. One side of the first inner ruler 5 is provided with a rectangular hole 6, and the inner wall of the first inner ruler 5 is fixedly penetrated by a clamping rod 13, and the inner cylinder One side of 12 is provided with a second circular hole 14, and one side of the second inner ruler 4 is provided with a circular groove 16. The locking rod 13 slides through the second circular hole 14 and engages with the circular groove 16. One part of the outer ruler 1 The side is provided with the first round hole 2 which engages with the clamp rod 13, which can fix the second inner ruler 4, and at the same time fix the first inner ruler 5 inside the outer ruler 1. One side of the second inner ruler 4 is opened There is a card slot 15, and one side of the first inner ruler 5 is fixedly connected with a card plate 3 engaged with the card groove 15, which is used to fix the second inner ruler 4 and the first inner ruler 5, the outer ruler 1, the second inner ruler One side of the ruler 4 and the first inner ruler 5 are provided with matching scale lines, which can be connected for use.

Working principle: when in use, the inner cylinder 12 and the first inner ruler 5 are pulled out through the clamping plate 3, at this time the clamp rod 13 passes through the second round hole 14 and engages with the circular groove 16, the second inner ruler 4 , the inner cylinder 12 and the first inner ruler 5 cannot be separated and move together. When the first inner ruler 5 and the inner cylinder 12 are both moved out to the outside of the outer ruler 1, the first compression spring 9 will eject the first inner ruler 5, and then At this time, the first inner ruler 5 drives the clamping rod 13 to snap into the inside of the first round hole 2, and the rectangular hole 6 cooperates with one side of the outer ruler 1. At this time, the first inner ruler 5 and the outer ruler 1 are connected together, and the first The scale on one side of the inner ruler 5 and the outer ruler 1 is connected to extend the measurement range. At this time, the clamping rod 13 is removed from the circular groove 16, and the second inner ruler 4 is no longer restricted. The second inner ruler 4 can be moved by the handle 7 as required. The second inner ruler 4 and the second fixing plate 10 are pulled out, and when the second fixing plate 10 moves out to one side of the first inner ruler 5, the second inner ruler 4 moves along the notch 17 under the elastic force of the second compression spring 11. Move laterally, and at the same time, the slot 15 is engaged with the clamping plate 3, and the scales on one side of the first inner ruler 5 and the second inner ruler 4 are connected to extend the measuring range again, which is convenient to use.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. a kind of high-accuracy scale that can extend measuring length range, comprises outer ruler (1), it is characterized in that, the inwall of described outer ruler (1) is slidably connected with inner cylinder (12), and described inner cylinder (12 ) is fixedly connected with a first fixed plate (8), and one side of the first fixed plate (8) is provided with a first extension assembly for extending the measurement range; The top inner wall of the inner cylinder (12) is slidably connected with a second fixing plate (10), and one side of the second fixing plate (10) is provided with a second extension assembly for extending the measuring range. 2. A kind of high-precision measuring scale that can extend the range of measuring length according to claim 1, characterized in that, the first extension assembly includes two symmetrically arranged fixedly connected on one side of the first fixing plate (8). a second positioning rod (19), the outer wall sliding sleeves of the two second positioning rods (19) are provided with the same first inner ruler (5), and the first inner ruler (5) is connected with the first fixed plate Two symmetrically arranged first compression springs (9) are fixedly connected between (8), and the first compression springs (9) are sheathed on the second positioning rod (19). 3. A kind of high-precision scale that can extend the measurement length range according to claim 2, characterized in that, the second extension assembly includes two symmetrically arranged on one side of the second fixed plate (10) that are fixedly connected. The first positioning rod (18), the outer wall sliding sleeves of two described first positioning rods (18) are provided with the same second inner chi (4), and the second inner chi (4) and the second fixed plate ( 10) are fixedly connected with two second compression springs (11) arranged symmetrically, one side of the second inner ruler (4) is fixedly connected with a handle (7), and the second compression spring (11) sets It is arranged on the first positioning rod (18), and a notch (17) for cooperating with the second inner ruler (4) is opened on one side of the inner cylinder (12). 4. A kind of high-precision measuring ruler that can extend the range of measuring length according to claim 3, characterized in that, one side of the first inner ruler (5) is provided with a rectangular hole (6), and the first inner ruler (5) is provided with a rectangular hole (6). The inner wall of the inner ruler (5) is fixedly penetrated with a clamping rod (13), and one side of the inner tube (12) is provided with a second round hole (14), and one side of the second inner ruler (4) is provided with a A circular groove (16), the clamping rod (13) slides through the second circular hole (14) and engages with the circular groove (16), and one side of the outer ruler (1) is provided with a clamping rod (13) ) the first circular hole (2) that engages with each other. 5. A kind of high-precision measuring ruler that can extend the range of measuring length according to claim 3, characterized in that, one side of the second inner ruler (4) is provided with a draw-in groove (15), and the first One side of the inner ruler (5) is fixedly connected with a clamping plate (3) engaged with the clamping groove (15). 6. A kind of high-precision measuring ruler that can extend the measurement length range according to any one of claims 1-5, characterized in that, the outer ruler (1), the second inner ruler (4) and the first inner ruler One side of ruler (5) is all provided with the scale mark that cooperates with.

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