Instrument convenient for zero adjustment of pointer

Abstract

The utility model discloses an instrument convenient for zero adjustment of a pointer, which comprises an instrument body, a connecting pipe arranged at the bottom of the instrument body, a dial plate arranged in the instrument body, the pointer arranged on the dial plate, and instrument glass arranged in the instrument body and positioned on the outer side of the dial plate, and an adjusting device connected with the dial plate is arranged on the instrument glass. The dial plate of the instrument is adjusted through the arranged adjusting device, zero position adjustment of the pointer can be achieved without disassembly, waste of manpower and material resources is reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of instrument and meter, concretely relates to the instrument and meter of easy pointer zero adjustment. BACKGROUND

[0002] Instrument and meter application field is extensive, covers industry, agriculture, transportation, science and technology, environmental protection, national defense, culture and health, people's life and so on each aspect, bears the task of the gatekeeper and the guide in the operation process of national economic construction each line each industry. Because its special position, big function, has good market demand and huge development potential to national economy. Instrument and meter industry market demand object and coverage range can be expressed from the following several aspects: 1, instrument and meter is the source and component part of information industry, is the important basis of information technology;2, instrument and meter is widely used in equipment, the measurement and control of the process flow of traditional industry's transformation, is the important component of modernization large-scale key complete equipment, is the important link of informationization driving industrialization;3, instrument and meter has become the important component of modern national defense construction technology equipment;4, high level scientific research and high-tech industry's rapid development improve the demand of instrument and meter, instrument and meter is playing a very important role in the process of implementing the country through science and education, knowledge innovation and technological innovation. The existing instrument and meter need to be tested after assembling to ensure its accuracy, once the pointer cannot reach zero during testing, then need to be disassembled and reworked, reassembled and tested again, the process of rework greatly wastes manpower and material resources, improves production cost. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the purpose of the present application is to provide an instrument and meter convenient for pointer zero adjustment, which can realize zero adjustment of the pointer without disassembly, reduce the waste of manpower and material resources, and reduce production cost.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: an instrument and meter convenient for pointer zero adjustment, comprising an instrument and meter body, a connecting pipe arranged at the bottom of the instrument and meter body, a dial arranged in the instrument and meter body, a pointer arranged on the dial, a watch glass arranged in the instrument and meter body outside the dial, and an adjusting device arranged on the watch glass and connected with the dial.

[0005] Preferably, the adjusting device comprises a transfer column connected with the watch glass, an adjusting column arranged at the outer end of the transfer column outside the watch glass, a connecting column arranged at the inner end of the transfer column inside the watch glass, and a transmission column arranged on the connecting column and connected with the dial;The dial is provided with a jack, the transmission column is inserted into the jack, and the diameter of the jack is greater than the diameter of the transmission column.

[0006] Preferably, the connecting column is provided with a transmission plate, and the transmission column is arranged at the tail end of the transmission plate.

[0007] Preferably, the diameter of the connecting column is larger than that of the transmission column, and the transmission plate adopts an inverted trapezoidal structure.

[0008] Preferably, the edge of the transmission plate connected with the connecting column adopts an arc structure, and the edge of the transmission plate connected with the transmission column adopts an arc structure.

[0009] Preferably, the diameter of the adjusting column and the connecting column is larger than that of the adapter column.

[0010] Preferably, the adjusting column is provided with an adjusting slot.

[0011] Preferably, the adjusting slot adopts a straight line shape or a cross shape.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a convenient pointer zero position adjusting instrument, which adjusts the dial of the instrument through the adjusting device, realizes the zero position adjustment of the pointer without disassembly, reduces the waste of manpower and material resources, and reduces production cost. ACCURACY OF DRAWINGS

[0014] Fig. 1 It is a structural schematic diagram of the utility model;

[0015] Fig. 2 It is a sectional view of the utility model;

[0016] Fig. 3 It is a structural schematic diagram of the glass and the adjusting device in the utility model;

[0017] Fig. 4 It is a structural schematic diagram of the adjusting device in the utility model;

[0018] In the drawing: 1, instrument body; 2, connecting pipe; 3, dial; 4, pointer; 5, glass; 6, adjusting device; 61, adapter column; 62, adjusting column; 63, connecting column; 64, transmission column; 65, transmission plate; 66, adjusting slot; 7, jack. DETAILED DESCRIPTION

[0019] In the following, the application is further described in combination with the drawings and specific embodiments, and it should be noted that, under the premise of not conflicting, the following described embodiments or technical features can be combined to form new embodiments.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] like Figs. 1 to 4 As shown, an instrument for easy zero-point adjustment includes an instrument body 1, a connecting pipe 2 at the bottom of the instrument body 1, a dial 3 inside the instrument body 1, a pointer 4 on the dial 3, and a dial glass 5 located outside the dial 3 inside the instrument body 1. The dial glass 5 is equipped with an adjustment device 6 connected to the dial 3. During testing, gas or liquid enters the instrument body 1 through the connecting pipe 2, creating pressure and causing the pointer 4 to rotate on the dial 3 to indicate the scale. When the pressure is removed, the pointer 4 should return to zero. If the pointer 4 cannot return to zero, the dial 3 is adjusted by the adjustment device 6 to bring the pointer 4 to zero. This allows for zero-point adjustment of the pointer 4 without disassembly, reducing waste of manpower and resources and lowering production costs.

[0022] The adjustment device 6 includes a transition post 61 that connects to the watch glass 5, an adjustment post 62 located on the outer side of the watch glass 5 at the outer end of the transition post 61, a connecting post 63 located on the inner side of the watch glass 5 at the inner end of the transition post 61, and a transmission post 64 connected to the dial 3 on the connecting post 63. The dial 3 has a socket 7, and the transmission post 64 is inserted into the socket 7. The diameter of the socket 7 is larger than the diameter of the transmission post 64. Rotating the adjustment post 62 causes the transition post 61 to rotate, which in turn causes the connecting post 63 to rotate, causing the transmission post 64 to rotate. The transmission post 64 is inserted into the socket 7, which in turn pushes the dial 3 to rotate, thus achieving adjustment of the dial 3. The adjustment is convenient. If the socket 7 and the transmission post 64 are fixed, the dial 3 cannot be pushed. Therefore, the diameter of the socket 7 is set to be larger than the diameter of the transmission post 64, so that the transmission post 64 can move in the socket 7 to push the dial 3 to rotate around the center.

[0023] A transmission plate 65 is provided on the connecting column 63, and the transmission column 64 is located at the tail end of the transmission plate 65. The transmission plate 65 increases the swing arm length of the transmission column 64, reduces the force required to rotate the adjusting column 62, and facilitates adjustment.

[0024] The diameter of the connecting post 63 is larger than the diameter of the transmission post 64, and the transmission plate 65 adopts an inverted trapezoidal structure. The inverted trapezoidal structure can enhance the strength of the connection and improve the stability of the adjustment.

[0025] The edge of the transmission plate 65 connected with the connecting column 63 is arc-shaped, and the edge of the transmission plate 65 connected with the transmission column 64 is arc-shaped, which is convenient for manufacturing.

[0026] The diameters of the adjusting column 62 and the connecting column 63 are greater than that of the adapter column 61. The adapter column 61 is connected with the watch glass 5, and the adjusting column 62 and the connecting column 63 are respectively located on two sides of the watch glass 5 to clamp the watch glass 5, which can effectively avoid loosening and ensure the reliability of adjustment.

[0027] The adjusting column 62 is provided with an adjusting slot 66, which is convenient for inserting the head of a screwdriver into the adjusting slot 66 to rotate and adjust.

[0028] The adjusting slot 66 is in the shape of a straight line or a cross, which is suitable for the head of a screwdriver in the shape of a straight line or a cross.

[0029] The above-mentioned embodiments are only the preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. An instrument that facilitates pointer zero-point adjustment, characterized in that: It includes an instrument body (1), a connecting pipe (2) located at the bottom of the instrument body (1), a dial (3) located inside the instrument body (1), a pointer (4) located on the dial (3), and a dial glass (5) located inside the instrument body (1) on the outside of the dial (3). The dial glass (5) is provided with an adjustment device (6) connected to the dial (3).

2. The instrument for easy pointer zero-position adjustment according to claim 1, characterized in that: The adjustment device (6) includes a transition post (61) that is connected to the watch glass (5), an adjustment post (62) located on the outer side of the watch glass (5) at the outer end of the transition post (61), a connecting post (63) located on the inner side of the watch glass (5) at the inner end of the transition post (61), and a transmission post (64) connected to the dial (3) on the connecting post (63); the dial (3) is provided with a socket (7), and the transmission post (64) is inserted into the socket (7), the diameter of the socket (7) being larger than the diameter of the transmission post (64).

3. The instrument for easy pointer zero-position adjustment according to claim 2, characterized in that: The connecting column (63) is provided with a transmission plate (65), and the transmission column (64) is located at the tail end of the transmission plate (65).

4. The instrument for easy pointer zero-position adjustment according to claim 3, characterized in that: The diameter of the connecting column (63) is larger than the diameter of the transmission column (64), and the transmission plate (65) adopts an inverted trapezoidal structure.

5. The instrument for easy pointer zero-position adjustment according to claim 4, characterized in that: The edge where the transmission plate (65) connects to the connecting column (63) adopts an arc-shaped structure, and the edge where the transmission plate (65) connects to the transmission column (64) adopts an arc-shaped structure.

6. The instrument for easy pointer zero-position adjustment according to claim 2, characterized in that: The diameters of the adjusting column (62) and the connecting column (63) are both larger than the diameter of the transition column (61).

7. The instrument for easy pointer zero-position adjustment according to claim 2, characterized in that: The adjusting column (62) is provided with an adjusting slot (66).

8. The instrument for easy pointer zero-position adjustment according to claim 7, characterized in that: The adjustment slot (66) is either in the shape of a straight line or a cross.

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