CN215981806U - Equal-ratio zooming projection device for engineering surveying and mapping - Google Patents

Abstract

The utility model provides an equal-ratio scaling projection device for engineering surveying and mapping, and relates to the field of engineering measurement equipment. This engineering survey and drawing is with geometric proportion projection arrangement that zooms, including the projection arrangement body, the universal wheel is installed to the lower extreme of projection arrangement body, and the front end fixedly connected with motor of projection arrangement body, the first lead screw of output shaft fixedly connected with of motor, the rear end fixedly connected with fixed plate of projection arrangement body, the lower extreme of fixed plate rotate and are connected with the second lead screw, the equal fixedly connected with mounting panel in both ends around the projection arrangement body, the lower extreme of first lead screw and second lead screw rotates the upper end that runs through two mounting panels respectively. This engineering survey and drawing is with geometric proportion projection arrangement that zooms, through setting up elevator, lifter, dog, steadying plate, slide bar and steadying piece, reached and to have made projection arrangement both can be convenient for remove and can guarantee its stable effect again, solved traditional projection arrangement and can't both guarantee its be convenient for remove, guarantee the problem of its stability when using again.

Description

Equal-ratio zooming projection device for engineering surveying and mapping

Technical Field

The utility model relates to the field of engineering measurement equipment, in particular to an equal-ratio scaling projection device for engineering surveying and mapping.

Background

A projector is an optical instrument that magnifies the contour of a workpiece using an optical element and projects it onto a screen. It can be used for profile measurement by transmitted light, and also can be used for measuring the surface shape of a blind hole and observing the surface of a part by reflected light. The projector is particularly suitable for measuring complex contours and small workpieces, and has high inspection efficiency and convenient use.

When the projection device is used, the projection device may need to be transferred to different places for use, the traditional projection device is not convenient to transfer, or the projection device convenient to transfer is not stable enough, so that the movement and the stability of the projection device during use cannot be guaranteed, and the use experience of the projection device is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an equal-ratio zooming projection device for engineering surveying and mapping, which solves the problem that the traditional projection device cannot ensure the convenience in movement and the stability in use.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: an equal ratio zooming projection device for engineering surveying and mapping comprises a projection device body, wherein universal wheels are installed at the lower end of the projection device body, a motor is fixedly connected at the front end of the projection device body, a first lead screw is fixedly connected with an output shaft of the motor, a fixing plate is fixedly connected at the rear end of the projection device body, the lower end of the fixing plate is rotatably connected with a second lead screw, mounting plates are fixedly connected at the front end and the rear end of the projection device body respectively, the lower ends of the first lead screw and the second lead screw respectively rotatably penetrate through the upper ends of the two mounting plates, the first lead screw and the second lead screw are connected through a belt in a transmission manner, stabilizing plates are fixedly connected at the left end and the right end of the projection device body respectively, two sliding rods slidably penetrate through the upper ends of the stabilizing plates, stabilizing blocks are fixedly connected at the lower ends of the sliding rods, buffer springs are fixedly connected at the upper ends of the stabilizing blocks, and are fixedly connected at the lower ends of the stabilizing plates, the upper end fixedly connected with dog of slide bar, the elevator has been cup jointed with the equal screw thread in outside of second lead screw to first lead screw, the equal fixedly connected with lifter in both ends about the elevator, and the upper end of two elevators that are located one side slides respectively and pegs graft at the lower extreme that is located two dogs of one side.

Preferably, the rollers are fixedly sleeved at one ends of the outer parts of the first screw rod and the second screw rod, which are located below the projection device body, and the rollers are in transmission connection with the belt.

Preferably, the lower end of the stop block is provided with a square groove, and the lifting rod is just inserted in the square groove in a sliding manner.

Preferably, the number of the universal wheels is four, and the four universal wheels are respectively positioned at four corners of the projection device body.

Preferably, the first lead screw and the second lead screw are both located on a vertical central line of the projection device body, and the first lead screw and the second lead screw are distributed in a mirror image mode by taking the projection device body as a center.

Preferably, the stabilizing blocks are of a cylindrical structure, and the four stabilizing blocks are respectively located on the outer sides of four corners of the projection device body.

(III) advantageous effects

The utility model provides an equal-ratio scaling projection device for engineering surveying and mapping. The method has the following beneficial effects:

1. the isometric zooming projection device for engineering surveying and mapping comprises a lifting block, a lifting rod, a stop block, a stabilizing plate, a sliding rod and a stabilizing block, wherein when the device needs to be transferred, an external power supply of a motor is firstly switched on, the motor is controlled to rotate forwards, the motor drives a first lead screw and a second lead screw to rotate forwards, so that the lifting block is driven to move upwards, the lifting block drives the lifting rod to move upwards, the stop block drives the sliding rod to move upwards, the sliding rod drives the stabilizing block to move upwards, the stabilizing block compresses a buffer spring and leaves the ground, so that the device is moved by a universal wheel, after the device is moved to a target position, the motor can be controlled to rotate backwards, so that the lifting block is driven to move downwards, when the lifting block drives the lifting rod to move downwards, the stop block can move downwards under the action of the buffer spring, until a moving block moves downwards to a maximum distance, the stabilizing block is contacted with the ground, the stabilizing block supports the device, the effect that the projection device can be conveniently moved and can be ensured to be stable is achieved, and the problem that the traditional projection device cannot be conveniently moved and can be ensured to be stable in use is solved.

2. This engineering survey and drawing is with geometric proportion projection arrangement that zooms, through setting up the steadying plate, buffer spring and steady piece, when supporting the device, when the elevator moves down, the steady piece can be automatic hugs closely ground under buffer spring's effect, thereby make four effectual supporting the device of steady piece, reached the steady piece can be automatic and ground contact under buffer spring's effect, thereby the effect of supporting the device, the distance of having solved steady piece downstream is not good to be controlled, lead to the unsatisfactory problem of steady piece to the device's stable effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a bottom view of the present invention;

FIG. 4 is a schematic view of a portion of the structure of the present invention.

The projector comprises a projection device body 1, universal wheels 2, a motor 3, a first screw rod 4, a fixing plate 5, a second screw rod 6, a mounting plate 7, a belt 8, a stabilizing plate 9, a sliding rod 10, a stabilizing block 11, a buffer spring 12, a stop block 13, a lifting block 14, a lifting rod 15, a roller 16 and a square groove 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the utility model provides an equal-ratio zooming projection device for engineering surveying and mapping, which comprises a projection device body 1, wherein universal wheels 2 are arranged at the lower end of the projection device body 1, the number of the universal wheels 2 is four, the four universal wheels 2 are respectively positioned at four corners of the projection device body 1, the device can be moved through the universal wheels 2, so that the device can be rapidly transferred, a motor 3 is fixedly connected at the front end of the projection device body 1, an output shaft of the motor 3 is fixedly connected with a first screw rod 4, a fixing plate 5 is fixedly connected at the rear end of the projection device body 1, the lower end of the fixing plate 5 is rotatably connected with a second screw rod 6, the first screw rod 4 and the second screw rod 6 are both positioned on a vertical central line of the projection device body 1, and the first screw rod 4 and the second screw rod 6 are distributed in a mirror image mode by taking the projection device body 1 as a center, the front end and the rear end of the projection device body 1 are fixedly connected with mounting plates 7, the lower ends of a first lead screw 4 and a second lead screw 6 respectively penetrate through the upper ends of the two mounting plates 7 in a rotating manner, the first lead screw 4 and the second lead screw 6 are in transmission connection through a belt 8, one ends of the outer parts of the first lead screw 4 and the second lead screw 6, which are positioned below the projection device body 1, are respectively fixedly sleeved with a roller 16, the roller 16 is in transmission connection with the belt 8, so that the first lead screw 4 and the second lead screw 6 can synchronously rotate, the roller 16 can enable the first lead screw 4 and the second lead screw 6 to more smoothly transmit, the left end and the right end of the projection device body 1 are respectively and fixedly connected with stabilizing plates 9, the upper ends of the stabilizing plates 9 are in sliding penetration with two sliding rods 10, the lower ends of the sliding rods 10 are fixedly connected with stabilizing blocks 11, the stabilizing blocks 11 are in cylindrical structures, and the four stabilizing blocks 11 are respectively positioned at the outer sides of four corners of the projection device body 1, the stabilizing blocks 11 are uniformly distributed around the projection device body 1, so that the stabilizing blocks 11 can effectively support the device when contacting the ground, the upper ends of the stabilizing blocks 11 are fixedly connected with buffer springs 12, the upper ends of the buffer springs 12 are fixedly connected with the lower ends of the stabilizing plates 9, the upper ends of the sliding rods 10 are fixedly connected with stop blocks 13, the outer parts of the first lead screw 4 and the second lead screw 6 are in threaded sleeve connection with lifting blocks 14, the left end and the right end of each lifting block 14 are fixedly connected with lifting rods 15, the upper ends of the two lifting blocks 14 positioned on one side are respectively in sliding insertion connection with the lower ends of the two stop blocks 13 positioned on one side, the lower ends of the stop blocks 13 are provided with square grooves 17, the lifting rods 15 are just in sliding insertion connection with the inside of the square grooves 17, the lifting blocks 14 move up and down, the lifting rods 15 are always positioned inside the square grooves 17 under the action of the buffer springs 12, so as to limit the lifting blocks 14, preventing the elevator block 14 from rotating.

The working principle is that when the device needs to be transferred, firstly, an external power supply of a motor 3 is switched on, then the motor 3 is controlled to rotate forwards, the motor 3 drives a first lead screw 4 to rotate forwards, the first lead screw 4 drives a second lead screw 6 to rotate forwards through a belt 8, the first lead screw 4 and the second lead screw 6 rotate forwards simultaneously, so that two lifting blocks 14 are driven to move upwards, a lifting block 14 drives a lifting rod 15 to move upwards, a stop block 13 jacks up a stop block 13, the stop block 13 drives a sliding rod 10 to move upwards, the sliding rod 10 drives a stabilizing block 11 to move upwards, the stabilizing block 11 compresses a buffer spring 12 and leaves the ground, so that the device is moved through a universal wheel 2, after the device is moved to a target position, the motor 3 can be controlled to rotate backwards, the motor 3 drives the first lead screw 4 and the second lead screw 6 to rotate backwards, so that the lifting block 14 is driven to move downwards, when the lifting block 14 drives the lifting rod 15 to move downwards, the stop block 13 can move downwards under the action of the buffer spring 12, thereby guarantee the inside of lifter 15 square groove 17 all the time, when the movable block moves down to the maximum distance, stable piece 11 contact ground this moment to support the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an engineering survey and drawing is with scaling projection arrangement, includes projection arrangement body (1), its characterized in that: the universal wheel (2) is installed at the lower end of the projection device body (1), the motor (3) is fixedly connected to the front end of the projection device body (1), a first lead screw (4) is fixedly connected to an output shaft of the motor (3), a fixing plate (5) is fixedly connected to the rear end of the projection device body (1), a second lead screw (6) is rotatably connected to the lower end of the fixing plate (5), mounting plates (7) are fixedly connected to the front end and the rear end of the projection device body (1), the lower ends of the first lead screw (4) and the second lead screw (6) are respectively rotatably penetrated through the upper ends of the two mounting plates (7), the first lead screw (4) and the second lead screw (6) are in transmission connection through a belt (8), stabilizing plates (9) are fixedly connected to the left end and the right end of the projection device body (1), two sliding rods (10) are slidably penetrated through the upper ends of the stabilizing plates (9), and a stabilizing block (11) is fixedly connected to the lower ends of the sliding rods (10), the upper end fixedly connected with buffer spring (12) of stabilizer block (11), the upper end fixed connection of buffer spring (12) is at the lower extreme of stabilizer plate (9), the upper end fixedly connected with dog (13) of slide bar (10), the equal screw thread in outside of first lead screw (4) and second lead screw (6) has cup jointed lifter (14), the equal fixedly connected with lifter (15) in both ends about lifter (14), the upper end of two lifters (14) that are located one side slides respectively and pegs graft at the lower extreme that is located two dogs (13) of one side.

2. The device of claim 1, wherein the projection device comprises: and one ends of the outer parts of the first screw rod (4) and the second screw rod (6) which are positioned below the projection device body (1) are fixedly sleeved with idler wheels (16), and the idler wheels (16) are in transmission connection with the belt (8).

3. The device of claim 1, wherein the projection device comprises: the lower end of the stop block (13) is provided with a square groove (17), and the lifting rod (15) is just inserted in the square groove (17) in a sliding manner.

4. The device of claim 1, wherein the projection device comprises: the number of the universal wheels (2) is four, and the four universal wheels (2) are respectively positioned at four corners of the projection device body (1).

5. The device of claim 1, wherein the projection device comprises: the first screw rod (4) and the second screw rod (6) are both located on a vertical central line of the projection device body (1), and the first screw rod (4) and the second screw rod (6) are distributed in a mirror image mode by taking the projection device body (1) as a center.

6. The device of claim 1, wherein the projection device comprises: the stabilizing blocks (11) are of cylindrical structures, and the four stabilizing blocks (11) are respectively positioned on the outer sides of four corners of the projection device body (1).

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