CN220418484U

CN220418484U - A examine school device for centering rod

Info

Publication number: CN220418484U
Application number: CN202321912527.2U
Authority: CN
Inventors: 胡康; 梁超; 王超; 刘林华; 王斌; 杨允橹
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-01-30
Anticipated expiration: 2033-07-20

Abstract

The utility model discloses a checking device for a centering rod, which comprises an upper supporting plate and a lower supporting plate, wherein the level of the upper supporting plate and the level of the lower supporting plate are regulated by a height regulating mechanism, so that the checking device has higher checking precision and meets the requirements of various measuring precision. The adjusting component arranged on the upper supporting plate comprises a driving unit and a clamping piece, wherein the driving unit is fixed in stability through the adjustment of the centering rod realized by the cooperation of the adjusting handle, the bearing component and the compression component with the clamping piece. The utility model has the advantages of stable structure, simple and convenient operation, high adjustment precision and the like, and can be used for accurately checking and calibrating the centering rod.

Description

A examine school device for centering rod

Technical Field

The utility model belongs to the technical field of measuring instruments, and particularly relates to a checking device for a centering rod.

Background

The horizontal bubble of the centering rod is measured as the only condition for judging whether the centering rod meets the precision requirement in the use process. Whether the measuring instrument is qualified or not is a prerequisite for directly influencing engineering quality in the process of surveying and mapping according to related requirements of surveying and mapping industry. When the horizontal bubble of centering rod is checked, other measuring instruments are adopted as auxiliary tools, and a plurality of people are required to coordinate to ensure that the centering rod is stable before the horizontal bubble is corrected, so that the problems of large consumption of manpower and material resources, long checking and correcting time, incapability of ensuring precision and the like occur.

The Chinese patent No. 104729528A discloses a device for adjusting and correcting a centering rod circular bubble and a matched use method thereof, which are mainly used for correcting the centering rod circular bubble in engineering measurement. The device comprises an upper end fixing device and a lower end supporting device, wherein the upper end fixing device consists of a hollow circular ring, a conical hollow cylinder and a limit bolt, the lower end supporting device is a circular gasket, the center of the front surface of the circular gasket is provided with a conical hole, and three small conical feet are uniformly distributed on the edge of the back surface of the circular gasket. The device can be made of any metal or alloy material, and can be directly inserted into a round hole of the head of a tripod of a common instrument to correct the round bubble of the measuring centering rod. Although the centering rod round bubble adjustment can be independently completed by one person, the centering rod round bubble adjustment device is difficult to accurately fix and stabilize by adopting a limiting bolt, and can easily shake or deviate in use, so that the accuracy of a measurement result cannot be guaranteed.

Disclosure of Invention

The utility model aims to provide a checking device for a centering rod, which aims to solve the technical problems of inaccurate measurement results caused by poor fixation and stability of the centering rod.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:

the checking device for the centering rod comprises an upper supporting plate and a lower supporting plate (2), wherein the upper supporting plate and the lower supporting plate are connected through a height adjusting mechanism, and a sleeve penetrating through the upper supporting plate is arranged at the center of the upper supporting plate;

the upper surface of the upper supporting plate is provided with an adjusting assembly, the adjusting assembly comprises a driving unit and a clamping piece, the driving unit comprises an adjusting handle in threaded fit with a sleeve, a bearing assembly arranged below the adjusting handle, and a compression assembly arranged below the bearing assembly, the compression assembly comprises a shell and a sliding block arranged in the shell, the lower surface of the sliding block is an inclined surface, the adjusting handle is connected with the inner ring of the bearing assembly through a first connecting rod, and the outer ring of the bearing assembly is connected with the upper surface of the sliding block through a second connecting rod penetrating through the shell;

one end of the clamping piece penetrates through the sleeve and extends towards the inside of the sleeve, and the other end of the clamping piece penetrates through the shell and is matched with the inclined surface;

the upper surface of the upper supporting plate is provided with a horizontal detection device.

Therefore, the centering rod checking and correcting device realizes checking and correcting of the centering rod through the height adjusting mechanisms of the upper supporting plate and the lower supporting plate. The adjusting component comprises a driving unit and a clamping piece, and the driving unit adjusts and fixes the device through the adjusting handle, the bearing component and the compression component. The clamping piece is matched with the inclined surface, so that reliable clamping force is provided for the centering rod in the sleeve to fix and stabilize the centering rod. The upper supporting plate is provided with a horizontal detection device, so that the levelness of the middle rod is conveniently detected.

Further, a guide pipe is sleeved on the clamping piece, one end of the guide pipe is connected with the sleeve, and the other end of the guide pipe is connected with the shell.

Further, the clamping piece is provided with an arc clamping plate at one end of the sleeve.

Further, a roller is arranged at one end of the clamping piece matched with the inclined surface.

Still further, be equipped with reset spring on the holder, reset spring's one end butt is in the surface of holder, reset spring's the other end butt is on the sleeve pipe.

Still further, the height adjusting mechanism is an adjusting screw, and an adjusting screw is arranged on the adjusting screw.

Further, a bracket connecting hole is formed in the center of the lower supporting plate, and the sleeve and the bracket connecting hole are coaxially arranged.

Further, the level detecting device is a level bubble meter.

The utility model has the following advantages: the checking and correcting device has the advantages of stable structure, simple and convenient operation, high adjusting precision and the like, and can be used for accurately checking and correcting the centering rod.

Drawings

FIG. 1 is a schematic view of a calibration device for centering bars according to the present utility model;

FIG. 2 is a top view of a calibration device for centering bars of the present utility model;

fig. 3 is an installation view of the checking device for centering rod of the present utility model.

The figure indicates: 1. an upper support plate; 2. a lower support plate; 3. a sleeve; 4. a bracket connection hole; 5. an adjustment assembly; 6. a driving unit; 61. an adjusting handle; 62. a bearing assembly; 63. a compression assembly; 631. a housing; 632. a slide block; 632. an inclined surface; 64. a first connecting rod; 65. a second connecting rod; 7. a clamping member; 71. a conduit; 72. an arc clamping plate; 73. a roller; 74. a return spring; 8. adjusting a screw; 81. adjusting a screw; 9. and a level detecting device.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.

As shown in fig. 1 and 2, a checking device for centering bars of the present embodiment includes an upper support plate 1 and a lower support plate 2, which are connected by a height adjusting mechanism between the upper support plate 1 and the lower support plate 2. Preferably, the height adjusting mechanism is an adjusting screw rod 8, and an adjusting screw 81 is arranged on the adjusting screw rod 8. The center of the upper supporting plate 1 is provided with a sleeve 3 penetrating through the upper supporting plate 1, the center of the lower supporting plate 2 is provided with a bracket connecting hole 4, and the sleeve 3 and the bracket connecting hole 4 are coaxially arranged. The upper surface of the upper supporting plate 1 is provided with a horizontal bubble instrument.

The upper surface of upper supporting plate 1 still is equipped with adjusting part 5, adjusting part 5 includes drive unit 6 and holder 7, drive unit 6 include with sleeve pipe 3 screw-thread fit's adjustment handle 61, set up the bearing assembly 62 of adjustment handle 61 below, and set up the compression subassembly 63 of bearing assembly 62 below, compression subassembly 63 includes shell 631 and sets up the slider 632 in shell 631, the lower surface of slider 632 is inclined plane 633, adjustment handle 61 links to each other with the inner circle of bearing assembly 62 through head rod 64, the outer lane of bearing assembly 62 through run through shell 631 second connecting rod 65 with the upper surface of slider 632 links to each other.

One end of the clamping member 7 penetrates the sleeve 3 and extends toward the inside of the sleeve 3, and the other end of the clamping member 7 penetrates the housing 631 and is engaged with the inclined surface 633. The clamping piece 7 is sleeved with a guide pipe 71, one end of the guide pipe 71 is connected with the sleeve 3, and the other end of the guide pipe 71 is connected with the shell 631. The clamping piece 7 is provided with a return spring 74, one end of the return spring 74 is abutted against the outer surface of the clamping piece 7, and the other end of the return spring 74 is abutted against the sleeve 3. Preferably, the clamping member 7 is provided with an arc clamping plate 72 at one end of the sleeve 3, and a roller 73 is provided at one end of the clamping member 7 matched with the inclined surface 633.

The embodiment realizes the accurate fixation of the centering rod and the correction of horizontal bubbles by adjusting the spiral sleeve, the bearing assembly and the compression assembly. The device has higher adjustment precision and can meet the requirements of various measurement precision. The clamping piece of this embodiment has adopted the structure of inclined plane connecting rod and arc splint, comes further stable fastening centering rod through the arc splint, can ensure the stability of centering rod in the horizontal direction, avoids its to rock or skew to guarantee measuring result's accuracy.

The checking and correcting process of the centering rod is simpler and quicker through the design of the embodiment. The whole process can be independently completed by operators, the centering rod is adjusted by rotating the adjusting handle, adjusting the screw and the like, and the time and manpower resources for cooperation of multiple persons are saved.

When the embodiment is used, as shown in fig. 1 and 3, the whole calibration device is connected and fixed on the tripod through the bracket connecting hole 4 on the lower supporting plate 2, and the adjusting screw 81 in the middle of the upper supporting plate and the lower supporting plate is adjusted until the horizontal bubble is centered. The centering rod is then inserted into the sleeve 3 with the lower end centered to the center point of the support frame. Finally, by rotating the adjusting handle 61, the adjusting handle 61 moves up and down on the sleeve 3, and drives the bearing assembly 62 to move up and down, and the up and down movement of the bearing assembly 62 drives the sliding block 632 in the compression assembly 63 to move up and down, so as to push the clamping piece 7 matched with the inclined surface 633 to move left and right, and when the clamping piece 7 moves left and right, the arc clamping plates 72 are pushed, and the radius of a circle formed by the arc clamping plates 72 is changed, so that the checking and correction of horizontal bubbles of the centering rod can be performed until the centering rod is fastened. The technical problems of fixation and stability of the centering rod, inspection and correction of horizontal bubbles, simplification and rapidness of the inspection and correction process, improvement of adjustment accuracy and the like are solved through the steps. These problems are important in the field of engineering measurements, since the accuracy and stability of the centering rod directly influences the reliability and accuracy of the measurement results.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The checking device for the centering rod is characterized by comprising an upper supporting plate (1) and a lower supporting plate (2), wherein the upper supporting plate (1) and the lower supporting plate (2) are connected through a height adjusting mechanism, and a sleeve (3) penetrating through the upper supporting plate (1) is arranged at the center of the upper supporting plate (1);

the upper surface of the upper supporting plate (1) is provided with an adjusting assembly (5), the adjusting assembly (5) comprises a driving unit (6) and a clamping piece (7), the driving unit (6) comprises an adjusting handle (61) in threaded fit with a sleeve (3), a bearing assembly (62) arranged below the adjusting handle (61) and a compression assembly (63) arranged below the bearing assembly (62), the compression assembly (63) comprises a shell (631) and a sliding block (632) arranged in the shell (631), the lower surface of the sliding block (632) is an inclined surface (633), the adjusting handle (61) is connected with the inner ring of the bearing assembly (62) through a first connecting rod (64), and the outer ring of the bearing assembly (62) is connected with the upper surface of the sliding block (632) through a second connecting rod (65) penetrating through the shell (631).

One end of the clamping piece (7) penetrates through the sleeve (3) and extends towards the inside of the sleeve (3), and the other end of the clamping piece (7) penetrates through the shell (631) and is matched with the inclined surface (633);

the upper surface of the upper supporting plate (1) is provided with a horizontal detection device (9).

2. The device for centering rod calibration according to claim 1, characterized in that the clamping member (7) is sleeved with a conduit (71), one end of the conduit (71) is connected with the sleeve (3), and the other end of the conduit (71) is connected with the housing (631).

3. Calibration device for centering bars according to claim 1, characterized in that the clamping element (7) is provided with an arc-shaped clamping plate (72) at one end of the sleeve (3).

4. The device for centering bars according to claim 1, characterized in that the end of the clamping element (7) cooperating with the inclined surface (633) is provided with a roller (73).

5. The device for checking and correcting a centering rod according to claim 1, characterized in that a return spring (74) is provided on the clamping member (7), one end of the return spring (74) is abutted against the outer surface of the clamping member (7), and the other end of the return spring (74) is abutted against the sleeve (3).

6. The checking device for centering bars according to claim 1, characterized in that the height adjusting mechanism is an adjusting screw (8), on which adjusting screw (8) an adjusting screw (81) is provided.

7. The device for centering rod calibration according to claim 1, wherein a bracket connection hole (4) is formed in the center of the lower support plate (2), and the sleeve (3) and the bracket connection hole (4) are coaxially arranged.

8. Calibration device for centering bars according to claim 1, characterized in that the level detection device (9) is a level bubble meter.