Actual measurement device for project quality acceptance

Abstract

The utility model relates to the technical field of engineering quality acceptance, in particular to an actual measurement device for engineering quality acceptance, which comprises a protective shell, a laser emission component and a lens protection piece, wherein the laser emission component and the lens protection piece are arranged in the protective shell; the laser emitting assembly comprises a laser emitting lens arranged at one end of the protective shell and a laser receiving lens arranged at the same end adjacent to the laser emitting lens, and movable grooves are annularly formed in the circumferential sides of the laser emitting lens and the laser receiving lens; the lens protection piece is movably arranged in the movable groove and can stretch out and draw back along the movable groove. According to the utility model, the lens protection piece surrounds the laser emission lens and the laser receiving lens and can stretch out and draw back along the movable groove, so that the lens is covered by the protection piece during use, and normal emission and receiving of laser are not hindered; and during cleaning, the lens can be retracted into the shell, so that the lens can be conveniently cleaned, and the convenience of protection and maintenance can be considered.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering quality acceptance technical field especially relates to a kind of engineering quality acceptance surveying device. BACKGROUND

[0002] In the field of construction and civil engineering, with the continuous expansion of project scale and the increasing complexity, ensuring engineering quality becomes a crucial issue. Surveying is the process of measuring physical dimensions, positions, flatness, perpendicularity and other specific indicators of engineering entities on site using measuring tools such as laser range finders during the post-construction acceptance stage, and comparing them with design drawings, specification requirements or standard values to verify whether the engineering quality meets the expected standards.

[0003] When using a laser range finder for surveying, considering the complex construction site, the equipment is prone to being knocked or falling. The existing laser range finder has a laser lens embedded in a protective shell. However, it is found that there is a lot of dust on the construction site, and during surveying, these dusts inevitably enter the shell and contaminate the lens, and the lens is recessed in the shell, making it difficult to clean. INVENTION CONTENTS

[0004] To solve the problems in the background art, the utility model provides a kind of engineering quality acceptance surveying device.

[0005] The utility model solves the technical problems by adopting the following scheme: a kind of engineering quality acceptance surveying device, including protective shell, laser emission component and lens protection piece in protective shell, the laser emission component includes laser emission lens in one end of the protective shell and laser receiving lens adjacent to laser emission lens and set in the same end, the laser emission lens and the laser receiving lens are all annularly provided with movable slot, the lens protection piece is movably arranged in the movable slot and can be telescoped along the movable slot.

[0006] By adopting the above technical scheme, when in normal use, the lens protection piece is set to the extended state, which can completely cover and protect the laser emission lens and the laser receiving lens from being knocked, and will not interfere with the emission and reception of laser. When cleaning the lens, the operator can simply retract the lens protection piece into the movable slot of the shell to expose the lens for direct cleaning.

[0007] Further, the outer wall of the lens protection piece is provided with external threads, and the movable slot is provided with internal threads matching the external threads.

[0008] By adopting the above technical scheme, the lens protection piece can be rotated to make the external threads interact with the internal threads, pushing the protection piece to move outward or inward along the movable slot.

[0009] Further, the protective shell is further provided with a hand-held handle.

[0010] By adopting the technical scheme, additional holding points are provided to make the operation more stable.

[0011] Further, the protective shell is further provided with a hand-held handle.

[0012] By adopting the technical scheme, when the handle is needed, the handle is unfolded to the middle to facilitate holding; when the handle is not needed, the handle can be folded and embedded in the storage groove.

[0013] Further, the protective shell is further provided with a hand-held handle.

[0014] By adopting the technical scheme, the dust cover can effectively isolate external dust and impurities when the laser range finder is not used, and prevent dust from entering the inside of the shell.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The present application is provided with a movable groove surrounding the two lenses on the side of the laser emitting lens and the laser receiving lens, and a lens protection piece is threadedly connected in the movable groove and can be moved in and out of the movable groove. When the lens protection piece is in the extended state, the lens is protected from being bumped during normal use, and when cleaning is needed, the lens protection piece can be retracted into the movable groove of the shell to expose the lens for cleaning.

[0017] 2. The present application is provided with a hand-held handle on both sides of the protective shell, which can be unfolded to the top to provide additional holding points to make the measurement more stable.

[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the present embodiment is shown in the exploded view;

[0020] Figure 2 The overall structure of the present embodiment is shown in the schematic view.

[0021] As shown in the figure: 1, the protective shell; 11, the movable slot; 111, the internal thread; 12, the containing groove; 2, the laser emission assembly; 21, the laser emission lens; 22, the laser receiving lens; 3, the lens protection piece; 31, the external thread; 4, the handheld handle; 5, the dust cover. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model can be more easily and clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained.

[0023] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0025] As Figures 1 to 2 shown, an engineering quality acceptance measured quantity device, wherein the embodiment includes a protective shell 1, a laser emission assembly 2 arranged in the protective shell 1 and a lens protection piece 3, and the laser emission assembly 2 includes a laser emission lens 21 arranged at one end of the protective shell 1 and a laser receiving lens 22 arranged at the same end adjacent to the laser emission lens 21, the laser emission lens 21 and the laser receiving lens 22 are both annularly arranged with movable slots 11, and the lens protection piece 3 is movably arranged in the movable slots 11 and can be extended and retracted along the movable slots 11.

[0026] The laser emitting lens 21 of the embodiment emits laser pulses, the laser pulses are reflected back after reaching the target, received by the laser receiving lens 22, and the distance of the target is calculated according to the time difference of the laser round trip through the internal circuit board. And the laser emitting lens 21 and the laser receiving lens 22 are provided with a ring-shaped movable groove 11 surrounding the two lenses, and a lens protection piece 3 with an inner diameter larger than the outer diameter of the two lenses is connected inside the movable groove 11, and the lens protection piece 3 can be moved in and out of the movable groove 11. When the laser range finder is normally used, the lens protection piece 3 can be set to the extended state to cover the lens and does not affect the lens emission and reception of laser; when the lens needs to be cleaned, the lens can be retracted into the shell movable groove 11, and then the lens can be exposed for cleaning, which is convenient and fast.

[0027] As shown in Figure 1 , the outer wall of the lens protection piece 3 of the embodiment is provided with external threads 31, and the inner wall of the movable groove 11 is provided with internal threads 111 matched with the external threads 31. The outer wall of the lens protection piece 3 is machined with external threads 31, and the inner wall of the movable groove 11 is machined with internal threads 111 matched with the external threads 31. The two threaded surfaces are engaged with each other. When the lens protection piece 3 rotates relative to the movable groove 11, the inclined surface of the thread promotes the protection piece to move axially to realize extension and retraction. That is, when the lens protection piece 3 needs to be extended, the user can rotate the lens protection piece 3 to make the external threads 31 interact with the internal threads 111, push the protection piece to move outward along the movable groove 11 until it reaches the desired position. Conversely, when the protection piece needs to be retracted, rotate the lens protection piece 3 in the opposite direction, and the interaction of the threads will make the protection piece move axially inward until it is completely retracted into the shell. At this time, the threaded connection between the protection piece and the movable groove 11 can also form a seal to prevent dust and moisture from entering.

[0028] As shown in Figure 2 , the protective shell 1 of the embodiment is also provided with a hand-held handle 4, which is arranged on the top of the protective shell 1. Considering the measurement at the corner, the user often needs to place the laser range finder at a certain point in the corner, and make the laser range finder parallel to the wall surface, and then measure the distance to another point, but simply holding the hand is difficult to adjust and keep the device angle stable, which leads to inconvenience in measurement. The top hand-held handle 4 can provide an additional holding point to make the operation more stable. Further, the hand-held handle 4 is provided with two, and the two hand-held handles 4 are hinged on the two sides of the protective shell 1, and the two sides of the protective shell 1 are also provided with accommodating grooves 12 matched with the hand-held handles 4. The two hand-held handles 4 are arranged on the two sides of the protective shell 1 through rotating shafts to form a rotatable movable connection. When needed, unfold the handles in the middle for easy holding; when not needed, fold them into the storage groove.

[0029] As shown in Figure 1As shown, the protective shell 1 of the embodiment is also provided with a dust cover 5 at one end of the laser emitting assembly 2 for preventing dust from contaminating the lens when not in use, and the dust cover 5 is detachably connected with the protective shell 1. The dust cover 5 can effectively isolate the external dust and impurities when the laser range finder is not in use, so as to avoid dust from entering the inside of the shell, especially to protect the laser emitting lens 21 and the receiving lens from being contaminated.

[0030] In summary, the beneficial effects of the embodiment are as follows: the embodiment is provided with the movable groove 11 surrounding the two lenses at the side of the laser emitting lens 21 and the laser receiving lens 22, and the lens protection piece 3 is threadedly movably connected inside the movable groove 11, and the lens protection piece 3 can be movably extended and retracted in the movable groove 11. When normally used, the lens protection piece 3 is in the extended state to protect the lens from being bumped, and when cleaned, it can be retracted into the movable groove 11 of the shell to expose the lens for cleaning. The hand-held handle 4 is provided on both sides of the protective shell 1 and can be expanded to the top, which can provide an additional holding point to make the measurement more stable.

[0031] The above-described embodiments are only preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application. Any non-substantial changes and modifications made by those skilled in the art on the basis of the present application shall fall within the protection scope of the present application.

Claims

1. An engineering quality acceptance survey device, characterized by, The utility model provides a laser protection device, including protective shell, be located in the laser emission subassembly of protective shell and lens protection piece, the laser emission subassembly includes the laser emission lens of being located in one end of the protective shell and the laser receiving lens of being located in the same end with laser emission lens adjacent, laser emission lens and laser receiving lens all ring the movable groove of side, the lens protection piece movable setting in movable groove and can along movable groove telescopic.

2. The device for acceptance of engineering quality according to claim 1, characterized in that, The outer wall of the lens protection piece is provided with external threads, and the movable groove is provided with internal threads matched with the external threads.

3. The device for acceptance of engineering quality according to claim 1, characterized in that, The protective shell is further provided with a hand-held handle.

4. The device for acceptance of engineering quality according to claim 3, characterized in that, The hand-held handle is provided with two, and the two hand-held handles are hinged to the two sides of the protective shell.

5. The device for acceptance of engineering quality according to claim 1, characterized in that, The protective shell is further provided with a dust cover at one end of the laser emission assembly for preventing dust from contaminating the lens when not in use, and the dust cover is detachably connected with the protective shell.

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