Vernier caliper capable of automatically locking vernier scale

Abstract

The utility model relates to the field of measuring tools, and particularly discloses a vernier caliper capable of automatically locking a vernier scale, which comprises a main scale and the vernier scale, a groove is arranged at the bottom of the vernier scale, a pressing rod is arranged in the groove, one end of the pressing rod is provided with a positioning column and a driving lever, the positioning column is used for abutting against the side surface of the main scale, and the driving lever can be pressed by a user after penetrating through the vernier scale. The vernier scale and the main scale are only in sliding connection, the positioning column is attached to the side face of the main scale by applying pressure through the pressing rod, and the position of the vernier scale is temporarily fixed. When the vernier scale is used, the vernier scale can be slid by a single hand and the deflector rod is pressed by a thumb, so that the positioning column is temporarily separated from the main scale, and the vernier scale can slide smoothly.

Description

Technical Field

[0001] The utility model belongs to the field of measuring tools, and particularly relates to a vernier caliper capable of automatically locking a vernier scale. Background Art

[0002] A vernier caliper is a commonly used measuring tool, which includes a main scale and a vernier scale that can slide on the main scale. The main scale is provided with outer jaws and inner jaws, and the vernier scale is also provided with corresponding outer jaws, inner jaws and a depth gauge. A set screw is arranged on the vernier scale. After rotating the set screw, it can abut against the main scale to fix the vernier scale. Most vernier calipers need to be picked up for reading after measurement. In order to avoid accidental shaking of the vernier scale, it is necessary to tighten the set screw first. Repeatedly rotating the set screw during use is rather troublesome, and a more convenient locking method is needed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a vernier caliper capable of automatically locking a vernier scale and being convenient to use.

[0004] To achieve the above purpose, the utility model provides a vernier caliper capable of automatically locking a vernier scale, which includes a main scale and a vernier scale that can slide on the main scale. Outer jaws and inner jaws are arranged on both the main scale and the vernier scale. A groove is arranged at the bottom of the vernier scale, and the tail end of the groove sinks further so that the tail end of the vernier scale penetrates through to the surface of the main scale; an elastically deformable pressure bar and a mounting seat located at the tail of the pressure bar are arranged in the groove. The head of the pressure bar is connected to the head of the groove. In the initial state, the pressure bar drives the mounting seat to approach the main scale. A positioning post for abutting against the side of the main scale and a dial rod penetrating through to the surface of the vernier scale are arranged on one side of the mounting seat close to the main scale.

[0005] As an improvement of the above scheme, the pressure bar is a spring sheet body. One side of the pressure bar is fixed to the head of the groove by a bolt. The positioning post abuts against the side of the main scale so that the initial state of the pressure bar is a bent state.

[0006] As an improvement of the above scheme, the upper end of the dial rod extends horizontally to increase the size of the upper end of the dial rod.

[0007] As an improvement of the above scheme, the positioning post is made of rubber.

[0008] As an improvement of the above scheme, the notch at the middle position of the dial rod wrapped by the vernier scale is in a vertical state, so that the dial rod moves in the vertical direction.

[0009] The utility model has the following beneficial effects: The vernier scale and the main scale are only slidably connected. The positioning column is pressed by the pressing rod and thus fits against the side of the main scale, realizing the temporary fixation of the position of the vernier scale. When using the vernier scale, the vernier scale can be slid with one hand while pressing the toggle lever with the thumb, so that the positioning column is temporarily separated from the main scale, and the vernier scale can slide smoothly. Description of the Drawings

[0010] Figure 1 is a cross-sectional view of the pressing rod area in an embodiment;

[0011] Figure 2 is an overall view of the vernier caliper in an embodiment.

[0012] Description of the reference numerals: 11, main scale; 12, vernier scale; 21, pressing rod; 22, mounting seat; 23, positioning column; 24, toggle lever. Detailed Description of the Embodiment

[0013] In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top part", "bottom part", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0014] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there are descriptions of the terms "first", "second", "third", etc., they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0015] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The embodiments of the present utility model will be described below according to its overall structure.

[0016] Reference Figure 1 and Figure 2 Figure 2

[0017] As an improvement of the above solution, the pressing rod 21 is a spring sheet body, one side of the pressing rod 21 is fixed to the head of the groove by a bolt, and the positioning column 23 abuts against the side of the main scale 11 so that the initial state of the pressing rod 21 is a bent state, so as to maintain sufficient pre-pressure.

[0018] As an improvement of the above solution, the upper end of the dial rod 24 extends horizontally to increase the size of the upper end of the dial rod 24. With the above solution, there is a larger contact area between the thumb and the dial rod 24, and the pressing feel is better. Further, a rounded corner is provided at the edge of the dial rod 24.

[0019] As an improvement of the above solution, the positioning column 23 is made of rubber material, and when the positioning column 23 abuts against the main scale 11, it can be appropriately deformed to fit more comprehensively.

[0020] As an improvement of the above solution, the notch at the middle position of the dial rod 24 wrapped by the vernier scale 12 is in a vertical state, so that the dial rod 24 moves in the vertical direction. With the above solution, the up and down movement of the dial rod 24 is more stable and the feel is better.

[0021] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and modifications. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A vernier caliper capable of automatically locking the vernier scale, comprising a main scale and a vernier scale slidable on the main scale, wherein external jaws and internal jaws are provided on both the main scale and the vernier scale, and it is characterized in that: A groove is provided at the bottom of the vernier scale, and the tail end of the groove continues to sink so that the tail end of the vernier scale penetrates through to the surface of the main scale; an elastically deformable pressure rod and a mounting seat located at the tail of the pressure rod are provided in the groove. The head of the pressure rod is connected to the head of the groove. In the initial state, the pressure rod drives the mounting seat to approach the main scale. A positioning post for abutting against the side of the main scale and a dial rod penetrating through to the surface of the vernier scale are provided on one side of the mounting seat close to the main scale.

2. The vernier caliper with an automatically lockable vernier scale according to claim 1, characterized in that: The pressure rod is a spring sheet body. One side of the pressure rod is fixed to the head of the groove by a bolt. The positioning post abuts against the side of the main scale so that the initial state of the pressure rod is a bent state.

3. The vernier caliper capable of automatically locking the vernier scale according to claim 2, wherein: The upper end of the dial rod extends in the horizontal direction to increase the size of the upper end of the dial rod.

4. The vernier caliper capable of automatically locking the vernier scale according to claim 3, characterized in that: The positioning post is made of rubber.

5. The vernier caliper capable of automatically locking the vernier scale according to claim 4, wherein: The notch at the middle position of the dial rod wrapped by the vernier scale is in a vertical state so that the dial rod moves in the vertical direction.

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