CN219316938U

CN219316938U - Zero point positioning mechanism of weight indicator

Info

Publication number: CN219316938U
Application number: CN202320281913.XU
Authority: CN
Inventors: 马文亮
Original assignee: Mudanjiang Longchang Petroleum Instrument Co ltd
Current assignee: Mudanjiang Longchang Petroleum Instrument Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-07
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to the technical field of weight meters and discloses a weight meter zero point positioning mechanism which comprises a bottom shell, wherein a dial plate is fixedly connected to the top end of the bottom shell, a cavity is formed in the middle of the inside of the dial plate, a central wheel shaft is rotationally connected to the middle of the cavity, a pointer is fixedly connected to the middle of the periphery of the central wheel shaft, a transparent protective shell is fixedly connected to the top end of the dial plate, an electromagnet is fixedly connected to the bottom end of the transparent protective shell, and a rod sleeve is fixedly connected to one side of the bottom of the cavity. According to the utility model, the electromagnet is controlled, the sliding rod slides in the inner cavity of the rod sleeve under the cooperation of the electromagnet, so that the sliding rod can extend into the through groove formed by the pointer and the adsorption block can be attached to the electromagnet, thereby avoiding the condition that the pointer cannot return to zero due to shaking in the moving process of the weight indicator, avoiding manual adjustment before use in the follow-up use, and being convenient for the follow-up use of the weight indicator.

Description

Zero point positioning mechanism of weight indicator

Technical Field

The utility model relates to the technical field of weight indicators, in particular to a weight indicator zero point positioning mechanism.

Background

The weight indicator is a device for displaying weight change and weight relation of the weight change and drilling tool in drilling engineering, and has two mechanical and electronic devices, and can be used for indicating the suspension weight and weight parameter of the drilling tool.

In the in-service use, the weight indicator can lead to the dislocation of pointer and dial plate zero point position after long-time use, and then lead to the pointer to appear the mounting infirm to can cause great error to the measurement of weight indicator, can influence the accurate measurement of weight indicator and use, cause the rocking of pointer in handling easily moreover, thereby all need manual adjustment before at every turn using, inconvenient use.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a weight meter zero point positioning mechanism.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a weight table zero point positioning mechanism, includes the drain pan, drain pan top fixedly connected with dial plate, the middle part is provided with the cavity in the dial plate, dial plate top fixedly connected with transparent protective housing, transparent protective housing bottom fixedly connected with electro-magnet, cavity bottom one side fixedly connected with pole cover, be provided with the inner chamber in the pole cover, inner chamber upper portion sliding connection has the slide bar, slide bar top fixedly connected with adsorption mass, the inner chamber lower part is provided with the spring.

As a further description of the above technical solution:

the middle part of the cavity is rotationally connected with a central axle, and the middle part of the periphery of the central axle is fixedly connected with a pointer.

As a further description of the above technical solution:

the electromagnet and the sliding rod are arranged in the same vertical direction.

As a further description of the above technical solution:

the middle part is installed before drain pan one side and indicates heavy interface, the middle part is installed behind drain pan one side degree of depth interface.

As a further description of the above technical solution:

the middle part of one side of the front end of the bottom shell is provided with a needle valve, and the middle part of the other side of the front end of the bottom shell is provided with an exhaust valve.

As a further description of the above technical solution:

one end of the spring is fixedly connected to the middle of the bottom end of the sliding rod, and the other end of the spring is fixedly connected to the middle of the bottom end of the inner cavity.

As a further description of the above technical solution:

the front side of the middle part in the pointer is provided with a through groove which is matched with the slide bar

The utility model has the following beneficial effects:

according to the utility model, the electromagnet is controlled, the sliding rod slides in the inner cavity of the rod sleeve under the cooperation of the electromagnet, so that the sliding rod can extend into the through groove formed by the pointer and the adsorption block can be attached to the electromagnet, thereby avoiding the condition that the pointer cannot return to zero due to shaking in the moving process of the weight indicator, avoiding manual adjustment before use in the follow-up use, and being convenient for the follow-up use of the weight indicator.

Drawings

FIG. 1 is a schematic perspective view of a weight indicator zero point positioning mechanism according to the present utility model;

fig. 2 is a schematic diagram of the internal structure of a dial of the weight indicator zero point positioning mechanism according to the present utility model;

FIG. 3 is a top view of a weight scale zero point positioning mechanism according to the present utility model;

fig. 4 is an enlarged view at a in fig. 2.

Legend description:

1. a bottom case; 2. a dial; 3. a transparent protective shell; 4. a pointer; 5. an electromagnet; 6. a finger weight interface; 7. a depth interface; 8. a needle valve; 9. an exhaust valve; 10. a center axle; 11. a through groove; 12. an adsorption block; 13. a cavity; 14. a rod sleeve; 15. a slide bar; 16. a spring; 17. an inner cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a weight indicator zero point positioning mechanism, including drain pan 1, drain pan 1 top fixedly connected with dial plate 2, through setting up dial plate 2, and be provided with evenly distributed's scale mark on the dial plate 2, can assist the staff to carry out the reading to measuring result, make things convenient for the staff to know the measuring result of weight indicator, the middle part is provided with cavity 13 in the dial plate 2, dial plate 2 top fixedly connected with transparent protective housing 3, owing to set up transparent protective housing 3, on the one hand can protect dial plate 2, avoid pointer 4 and scale mark on the dial plate 2 to suffer wearing and tearing, and then influence weight indicator normal use, on the other hand can make things convenient for the staff to carry out the reading, transparent protective housing 3 bottom fixedly connected with electro-magnet 5, the staff passes through control electro-magnet 5, at this moment, after the electro-magnet 5 circular telegram, can produce magnetic force, and then can adsorb absorption piece 12, the electromagnet 5 can generate upward adsorption force to the adsorption block 12 on the slide bar 15 due to the characteristic of the electromagnet 5, so that the slide bar 15 can move upwards under the assistance of the adsorption block 12, the spring 16 in the cavity 13 can be pulled upwards, one side of the bottom of the cavity 13 is fixedly connected with the bar sleeve 14, the inner cavity 17 is arranged in the bar sleeve 14, the upper part of the inner cavity 17 is slidably connected with the slide bar 15, the top end of the slide bar 15 is fixedly connected with the adsorption block 12, under the cooperation of the electromagnet 5, the slide bar 15 extends into the through groove 11 formed by the pointer 4 and the adsorption block 12 can be attached to the electromagnet 5, the pointer 4 can be fixed at the zero scale mark of the dial 2 due to the fact that the slide bar 15 is clamped in the through groove 11 of the pointer 4, so that the situation that the pointer 4 cannot return to zero due to shaking in the moving process of the weight meter is avoided, manual adjustment is not needed in the subsequent use, can make things convenient for follow-up use of weight table, inner chamber 17 lower part is provided with spring 16, because spring 16's characteristic, spring 16 atress can upwards take place deformation, at this moment, according to hooke's law can know, spring 16 can produce a force that can slide bar 15 pull back, after electro-magnet 5 is closed, absorption piece 12 can lose the restriction of external effort this moment, and then can realize that slide bar 15 can retract in the inner chamber 17 of bar cover 14, pointer 4 can rotate along central shaft 10 axial at this moment, and then can normally rotate directional scale mark, the convenience staff reading.

The middle part of the cavity 13 is rotationally connected with the center wheel axle 10, the middle part of the periphery of the center wheel axle 10 is fixedly connected with the pointer 4, through the arrangement of the center wheel axle 10 and the pointer 4, the pointer 4 points to the scale mark in the dial 2 under the mutual cooperation of an internal driving element and a plurality of precision control elements, the detection value of the weight indicator can be displayed to a certain extent, a worker can conveniently and intuitively read the detection value of the weight indicator, the electromagnet 5 and the slide bar 15 are arranged in the same vertical direction, the slide bar 15 can be ensured to vertically move along the bar sleeve 14 under the adsorption of the electromagnet 5, the slide bar 15 is prevented from deviating in the moving process, the slide bar 15 cannot fix the pointer 4 at the zero scale mark, the front middle part of one side of the bottom shell 1 is provided with the weight indicating interface 6, the middle part is installed behind one side of the bottom shell 1 and is provided with the depth connector 7, one side middle part of the front end of the bottom shell 1 is provided with the needle valve 8, the other side middle part of the front end of the bottom shell 1 is provided with the exhaust valve 9, through the arrangement of the finger weight connector 6, the depth connector 7, the exhaust valve 9 and the needle valve 8, the stable work of the weight indicator in the use process can be ensured, the influence of the weight indicator in the work process is avoided, the weight indicator cannot normally work, the influence of the use is avoided, one end of the spring 16 is fixedly connected in the middle of the bottom end of the sliding rod 15, the other end of the spring 16 is fixedly connected in the middle of the bottom end of the inner cavity 17, the firmness of the spring 16 can be increased by fixing the spring 16 in the sliding rod 15 and the inner cavity 17, the spring 16 can be ensured to stably reset the sliding rod 15, the through groove 11 is formed in the front side of the middle part in the pointer 4, the through groove 11 is matched with the sliding rod 15, the upward movement of the sliding rod 15 can be realized through the arrangement of the through groove 11, the pointer 4 is penetrated, and the pointer 4 can be fixed at the zero graduation mark position.

Working principle: after the use of the indicator is completed, the pointer 4 can stay at the zero scale mark of the dial 2, at this moment, staff can control the electromagnet 5, because the characteristic of the electromagnet 5, can produce ascending adsorption force to the adsorption block 12 on the slide bar 15, and then make the slide bar 15 slide in the inner cavity 17 of the rod sleeve 14, and the spring 16 in the inner cavity 17 of the rod sleeve 14 can be stretched, under the cooperation of the electromagnet 5, the slide bar 15 extends into the through groove 11 formed by the pointer 4 and the adsorption block 12 can be attached to the electromagnet 5, because the slide bar 15 is clamped in the through groove 11 of the pointer 4, the pointer 4 can be fixed at the zero scale mark of the dial 2, thereby avoiding the condition that the pointer 4 can not return to zero due to shaking in the moving process of the indicator, in the follow-up use, without manual adjustment before use, can facilitate the follow-up use of the indicator, when the indicator is used, the staff breaks off the electromagnet 5, can realize that the electromagnet 5 loses adsorption force to the adsorption block 12, under the cooperation of the spring 16, the 15 can retract in the inner cavity 14 of the slide bar sleeve, the inner cavity 17 can be retracted, the pointer 4 can point to the normal rotation along the axial direction of the axle 10, and the normal rotation of the pointer can be further read by the staff.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a weight table zero point positioning mechanism, includes drain pan (1), its characterized in that: the utility model discloses a novel electric meter is characterized in that a dial plate (2) is fixedly connected with the top of a bottom shell (1), a cavity (13) is formed in the middle of the dial plate (2), a transparent protective shell (3) is fixedly connected with the top of the dial plate (2), an electromagnet (5) is fixedly connected with the bottom of the transparent protective shell (3), a rod sleeve (14) is fixedly connected with one side of the bottom of the cavity (13), an inner cavity (17) is formed in the rod sleeve (14), a slide bar (15) is connected with the upper portion of the inner cavity (17) in a sliding mode, an adsorption block (12) is fixedly connected with the top of the slide bar (15), and a spring (16) is arranged on the lower portion of the inner cavity (17).

2. The weight scale zero point positioning mechanism according to claim 1, wherein: the middle part of the cavity (13) is rotationally connected with a central wheel shaft (10), and the middle part of the periphery of the central wheel shaft (10) is fixedly connected with a pointer (4).

3. The weight scale zero point positioning mechanism according to claim 1, wherein: the electromagnet (5) and the sliding rod (15) are arranged in the same vertical direction.

4. The weight scale zero point positioning mechanism according to claim 1, wherein: the middle part is installed before drain pan (1) one side and indicates heavy interface (6), middle part is installed behind drain pan (1) one side and is had degree of depth interface (7).

5. The weight scale zero point positioning mechanism according to claim 1, wherein: the middle part of one side of the front end of the bottom shell (1) is provided with a needle valve (8), and the middle part of the other side of the front end of the bottom shell (1) is provided with an exhaust valve (9).

6. The weight scale zero point positioning mechanism according to claim 1, wherein: one end of the spring (16) is fixedly connected to the middle of the bottom end of the sliding rod (15), and the other end of the spring (16) is fixedly connected to the middle of the bottom end of the inner cavity (17).

7. The weight scale zero point positioning mechanism according to claim 2, wherein: a through groove (11) is formed in the front side of the middle part in the pointer (4), and the through groove (11) is matched with the sliding rod (15).