CN219178778U

CN219178778U - Geotechnical engineering three-dimensional stress meter

Info

Publication number: CN219178778U
Application number: CN202320733581.4U
Authority: CN
Inventors: 鲁千红; 苏龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-06-13
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to the technical field of stress meters and discloses a geotechnical engineering three-dimensional stress meter which comprises a rod body, a position adjusting component arranged between a pressure sensor and the rod body and an auxiliary limiting component arranged at one end of the rod body, wherein the position adjusting component comprises four groups of bidirectional screw rods which are rotationally connected to the outer parts of the rod body, moving blocks which are in threaded connection with the outer parts of two sides of the bidirectional screw rods, a mounting plate which is arranged outside the bidirectional screw rods and fixedly connected with the pressure sensor, an adjusting rod hinged between the mounting plate and the moving block, a gear I fixedly connected with one end of the bidirectional screw rods, a gear II which is rotationally connected to the inner part of the rod body, and a gear III which is in meshed connection with the gear I and the gear II.

Description

Geotechnical engineering three-dimensional stress meter

Technical Field

The utility model relates to the technical field of stress meters, in particular to a geotechnical engineering three-dimensional stress meter.

Background

The stress meter is an instrument for measuring the ground stress, and has larger rigidity than the rigidity of the rock at the measured place, so that the stress meter has larger capacity for resisting the deformation of the rock, and the stress born by the stress meter mainly depends on the stress in the rock, has no great relation with the elastic constant of the rock, and has obvious effect when the stress meter is used for measuring the elastic constant of the rock.

In the chinese patent of utility model with publication No. CN211904491U, a three-dimensional stress meter for geotechnical engineering is disclosed, by placing the device in a placing groove in a geotechnical layer, making pressure sensors on three protruding blocks all adhere to a rock wall, and then driving corresponding limit posts to contact with the rock wall by rotating a pulling piece respectively, so that the detection precision of the pressure sensors is improved, and aiming at the related art, the inventor considers that the following defects exist:

the device needs the setting up size of strict accurate control standing groove when in actual use, because of pressure sensor's mounted position is fixed, when the standing groove diameter of seting up is too big, because pressure sensor can't be contacted with the rock wall, lead to being difficult to realize the detection to ground stress, when the standing groove diameter of seting up is too little, be difficult to the assembly and lead to detecting work to go on easily because of the device, simultaneously, it is comparatively troublesome to drive the operation of corresponding spacing post and rock wall contact through rotating the plectrum respectively, the quick assembly of the device of being inconvenient for, we provide a geotechnical engineering three-dimensional stress meter for this reason.

Disclosure of Invention

In order to solve the problem that the installation difficulty of the device is increased due to the fact that the installation position of the pressure sensor of the device is fixed, the opening size of the placing groove needs to be strictly and accurately controlled, and the geotechnical engineering three-dimensional stress meter is provided.

The utility model is realized by adopting the following technical scheme: the utility model provides a three-dimensional stress meter of geotechnical engineering, includes the body of rod, equidistant circumference setting at the outside pressure sensor of body of rod, sets up the position control subassembly between pressure sensor and body of rod and sets up the supplementary spacing subassembly in body of rod one end.

The position adjusting assembly comprises four groups of bidirectional screw rods which are rotationally connected to the outside of the rod body, moving blocks which are in threaded connection with the outside of two sides of the bidirectional screw rods, a mounting plate which is arranged on the outside of the bidirectional screw rods and fixedly connected with the pressure sensor, an adjusting rod which is hinged between the mounting plate and the moving blocks, a first gear fixedly connected with one end of the bidirectional screw rods, a second gear which is rotationally connected to the inside of the rod body, and a third gear which is simultaneously meshed with the first gear and the second gear.

As a further improvement of the scheme, the auxiliary limiting assembly comprises four groups of sliding grooves formed in one end of the rod body, sliding blocks which are connected inside the sliding grooves in a sliding mode, a one-way screw rod fixedly connected with the second gear, a threaded sleeve which is connected with the outer portion of the one-way screw rod in a threaded mode, a connecting rod hinged between the threaded sleeve and the sliding blocks, and limiting pieces fixedly connected with the sliding blocks, and the four groups of limiting pieces can be driven to move outwards simultaneously to enable the four groups of limiting pieces to be in contact with the rock wall, so that better contact effects of the auxiliary pressure sensor and the rock wall are achieved.

As a further improvement of the scheme, the guide grooves are circumferentially formed in the outer portion of the rod body at equal intervals, and the bottom of the moving block is fixedly connected with the guide block and is slidably connected with the guide grooves, so that the moving block can be guided.

As a further improvement of the scheme, notches for rotation of the first gear are circumferentially formed in the outer portion of the rod body at equal intervals, and the first gear is meshed with the third gear conveniently.

As a further improvement of the scheme, the outer part of the pressure sensor and the outer part of the auxiliary limiting assembly are positioned on the same horizontal line, so that the pressure sensor and the limiting piece can be simultaneously contacted with the rock wall.

As the further improvement of above-mentioned scheme, the locating part is arc structural design, the inner wall of the circular standing groove of better laminating of being convenient for.

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

1. according to the utility model, the gear II is driven to rotate by rotating the unidirectional screw rod, the four groups of bidirectional screw rods are driven to rotate simultaneously by the meshing action of the gear II and the gear III and the meshing action of the gear III and the gear I, the bidirectional screw rods rotate to drive the two groups of moving blocks in threaded connection with the bidirectional screw rods to move in opposite directions or relatively, and the pressure sensor is driven to move inwards or outwards under the hinged fit among the moving blocks, the mounting plate and the adjusting rod, so that the device is convenient to adapt to the placing grooves with different sizes, the practicability of the device is improved, the problem that the setting size of the placing groove needs to be strictly and accurately controlled due to the fact that the mounting position of the pressure sensor of the device is fixed is effectively avoided, and the assembly difficulty of the device is increased.

2. According to the utility model, the unidirectional screw rod is rotated, the threaded sleeve in threaded connection with the unidirectional screw rod can be driven to move on the unidirectional screw rod, and the sliding block is driven to move outwards or inwards through sliding fit of the sliding block and the sliding groove and hinged fit of the sliding block, the threaded sleeve and the connecting rod, so that the limiting piece is driven to move in cooperation with the movement of the pressure sensor, the operation is simple and convenient, and better contact effect between the auxiliary pressure sensor and the rock wall is effectively achieved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

fig. 3 is a schematic view of a longitudinal section of a rod body according to the present utility model.

Main symbol description:

1. a rod body; 2. a pressure sensor; 3. a position adjustment assembly; 4. an auxiliary limit component; 5. a guide groove; 31. a two-way screw rod; 32. a moving block; 33. an adjusting rod; 34. a first gear; 35. a second gear; 36. a third gear; 41. a slide block; 42. a unidirectional screw rod; 43. a thread sleeve; 44. a connecting rod; 45. and a limiting piece.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Example 1:

referring to fig. 1-3, the geotechnical engineering three-dimensional stress meter of the embodiment comprises a rod body 1, a pressure sensor 2 circumferentially arranged outside the rod body 1 at equal intervals, a position adjusting component 3 arranged between the pressure sensor 2 and the rod body 1, and an auxiliary limiting component 4 arranged at one end of the rod body 1, wherein the outside of the pressure sensor 2 and the outside of the auxiliary limiting component 4 are positioned on the same horizontal line, and the pressure sensor 2 and a limiting piece 45 can be simultaneously contacted with a rock wall.

The position adjusting assembly 3 comprises four groups of bidirectional screw rods 31 which are rotationally connected to the outside of the rod body 1, moving blocks 32 which are in threaded connection with the two sides of the bidirectional screw rods 31, a mounting plate which is arranged outside the bidirectional screw rods 31 and fixedly connected with the pressure sensor 2, an adjusting rod 33 which is hinged between the mounting plate and the moving blocks 32, a first gear 34 which is fixedly connected with one end of the bidirectional screw rods 31, a second gear 35 which is rotationally connected to the inside of the rod body 1, and four groups of gears three 36 which are simultaneously meshed with the first gear 34 and the second gear 35, wherein a guide groove 5 is circumferentially arranged at the outer equidistant side of the rod body 1, a guide block is fixedly connected to the bottom of the moving blocks 32 and is slidably connected with the guide groove 5, a notch for the rotation of the first gear 34 is circumferentially arranged at the outer equidistant side of the rod body 1, and the first gear 34 is conveniently meshed with the third gear 36.

The implementation principle of the geotechnical engineering three-dimensional stress meter in the embodiment of the application is as follows: firstly, the device is placed in a prepared placing groove, then the unidirectional screw rod 42 is rotated, the unidirectional screw rod 42 rotates to drive the gear II 35 to rotate, the meshing effect of the gear III 36 and the gear III 36 is adopted, the meshing effect of the gear III 36 and the gear I34 enables the four groups of bidirectional screw rods 31 to be driven to rotate simultaneously, the bidirectional screw rods 31 rotate to drive the two groups of moving blocks 32 in threaded connection with the bidirectional screw rods to move oppositely or relatively, and under the hinged fit of the moving blocks 32, the mounting plate and the adjusting rod 33, the pressure sensor 2 is driven to move inwards or outwards to be in contact with the inner wall of the placing groove, so that the placing groove with different sizes is convenient to apply, the practicability of the device is improved, and finally the placing groove is filled.

Example 2:

the further improvement of this embodiment on the basis of embodiment 1 is that: the auxiliary limiting component 4 comprises four groups of sliding grooves formed in one end of the rod body 1, sliding blocks 41 which are in sliding connection with the sliding grooves, one-way screw rods 42 which are fixedly connected with the second gear 35, threaded sleeves 43 which are in threaded connection with the outer portions of the one-way screw rods 42, connecting rods 44 hinged between the threaded sleeves 43 and the sliding blocks 41 and limiting pieces 45 which are fixedly connected with the sliding blocks 41, wherein the limiting pieces 45 are of arc-shaped structural design, are convenient to better fit with the inner walls of circular placing grooves, can drive the threaded sleeves 43 which are in threaded connection with the one-way screw rods 42 to move on the one-way screw rods 42 when the one-way screw rods 42 are rotated, and can drive the sliding blocks 41 to move outwards or inwards through sliding fit of the sliding blocks 41, hinged fit of the threaded sleeves 43 and the connecting rods 44, so that the limiting pieces 45 are convenient to drive the movement of the pressure sensors 2 to move, and the auxiliary pressure sensors 2 and rock walls are convenient to operate.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The geotechnical engineering three-dimensional stress meter is characterized by comprising a rod body (1), pressure sensors (2) circumferentially arranged outside the rod body (1) at equal intervals, a position adjusting assembly (3) arranged between the pressure sensors (2) and the rod body (1) and an auxiliary limiting assembly (4) arranged at one end of the rod body (1);

the position adjusting assembly (3) comprises four groups of bidirectional screw rods (31) which are rotationally connected to the outside of the rod body (1), moving blocks (32) which are in threaded connection with the two sides of the bidirectional screw rods (31), a mounting plate which is arranged outside the bidirectional screw rods (31) and fixedly connected with the pressure sensor (2), an adjusting rod (33) which is hinged between the mounting plate and the moving blocks (32), a first gear (34) which is fixedly connected with one end of the bidirectional screw rods (31), a second gear (35) which is rotationally connected to the inside of the rod body (1), and a third gear (36) which is simultaneously meshed with the first gear (34) and the second gear (35).

2. The geotechnical engineering three-dimensional stress meter according to claim 1, wherein the auxiliary limiting assembly (4) comprises four groups of sliding grooves formed in one end of the rod body (1), sliding blocks (41) which are connected inside the sliding grooves in a sliding mode, one-way screw rods (42) fixedly connected with the second gears (35), threaded sleeves (43) which are connected with the outer portions of the one-way screw rods (42) in a threaded mode, connecting rods (44) hinged between the threaded sleeves (43) and the sliding blocks (41) and limiting pieces (45) fixedly connected with the sliding blocks (41).

3. The geotechnical engineering three-dimensional stress meter according to claim 1, wherein guide grooves (5) are formed in the outer equidistant circumference of the rod body (1), and the bottom of the moving block (32) is fixedly connected with the guide block and is in sliding connection with the guide grooves (5).

4. A geotechnical engineering three-dimensional stress meter according to claim 1, wherein the outer part of the rod body (1) is provided with notches for rotation of the first gear (34) in the equidistant circumferential direction.

5. A geotechnical engineering three-dimensional stress meter according to claim 1, characterized in that the exterior of the pressure sensor (2) is on the same level as the exterior of the auxiliary limit assembly (4).

6. A geotechnical engineering three-dimensional stress meter according to claim 2, wherein the limiting element (45) is of an arc-shaped structural design.