Building surveying level gauge with dustproof structure

Abstract

The utility model is applicable to the technical field of level gauges, and provides a building surveying level gauge with a dustproof structure, which comprises a device base, an adjusting structure arranged at the top end of the device base, a connecting seat fixedly connected to the top end of the adjusting structure, and a mounting frame fixedly connected to the top end of the connecting seat, and a measuring eyepiece is transversely and fixedly connected into the mounting frame. According to the building surveying level gauge with the dustproof structure, through the arrangement of the device ring and the micro air pump, when the device is actually used, the micro air pump needs to be synchronously opened after a surveying eyepiece is opened, after the micro air pump is opened, the micro air pump can inflate air into the device ring through a communicating pipe, and under the action of air pressure, the device ring is prevented from being blocked; when the device is used, the gas in the device ring is sprayed outwards through the plurality of gas spraying holes, so that an annular ventilation wall is formed on the outer edge of the measuring eyepiece, and external dust is blown away when approaching the measuring eyepiece, so that the dust can be prevented from influencing the normal use of the device, and the observation effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of levels, and in particular relates to a level for building measurement with a dustproof structure. Background Art

[0002] A level is an instrument that establishes a horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between points on the ground according to the principle of leveling. The main components include the level body (telescope), base and foot screws. The front and rear ends of the level body have an eyepiece and an objective lens. The objective lens is a lens close to one end of the object. The objective lens has a large area and is exposed to the outside world.

[0003] In engineering surveying, the construction environment is complex and there are often some dusty areas (outdoor exposed soil layer measurement). The measurement environment is relatively harsh, and dust pollution is more serious in multi-point measurement, so in order to protect the objective lens, a dust cover is set on the outside, but the dust cover needs to be opened during measurement, and external dust will still enter the surface of the objective lens and cause pollution. In order to remove dust impurities from the objective lens during outdoor use, testers generally use soft paper towels to wipe it, but dust particles will scratch the lens during wiping, affecting the observation effect. Utility Model Content

[0004] The utility model provides a building measurement level with a dustproof structure, aiming to solve the problem that a general level is easily affected by external dust during actual use.

[0005] The utility model is implemented as follows: a building measurement level with a dustproof structure comprises a device base, the top of the device base is provided with an adjustment structure, the top of the adjustment structure is fixedly connected with a connecting seat, the top of the connecting seat is fixedly connected with a mounting frame, and the inside of the mounting frame is laterally fixedly connected with a measuring eyepiece;

[0006] The front end of the measuring eyepiece is fixedly connected to a dustproof collar, the outer surface of the dustproof collar is fixedly connected to an internal hollow device ring, the front end surface of the device ring is evenly spaced and laterally penetrated with a plurality of air jet holes along the circumferential direction of its cross section, the plurality of air jet holes are all connected to the internal cavity of the device ring, the top end of the mounting frame is fixedly connected to a micro air pump, and a connecting pipe is connected between the air outlet end of the micro air pump and the device ring.

[0007] Preferably, a dust cover is detachably mounted on the front end of the dustproof collar.

[0008] Preferably, the front end of the inner ring surface of the dustproof collar is provided with an internal thread, the rear end surface of the dustproof cover is fixedly connected with a connecting ring, the outer surface of the connecting ring is provided with an external thread matching the internal thread, and the dustproof cover is detachably mounted on the front end of the dustproof collar through the connecting ring.

[0009] Preferably, the front end of the dust cover is laterally rotatably connected with a rotating block.

[0010] Preferably, an anti-lost rope is fixedly connected to the bottom end of the rotating block, and the other end of the anti-lost rope is fixedly connected to the lower surface of the front end of the measuring eyepiece.

[0011] Preferably, a plurality of connection holes are vertically penetrated through the bottom end of the device base.

[0012] Beneficial Effects

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is a building measurement level with a dustproof structure. By setting a device ring and a micro air pump, when the device is actually used, after opening the measuring eyepiece, the micro air pump needs to be turned on synchronously. After the micro air pump is turned on, it will fill gas into the interior of the device ring through the connecting pipe. Under the action of air pressure, the gas inside the device ring will be ejected outward through multiple air jet holes, thereby forming an annular wind wall at the outer edge of the measuring eyepiece. When external dust approaches the measuring eyepiece, it will be blown away, thereby preventing dust from affecting the normal use of the device, thereby ensuring the observation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the dust cover connection structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the device ring in the utility model.

[0017] In the figure: 1-device base, 2-adjustment structure, 3-connecting seat, 4-mounting frame, 5-measuring eyepiece, 6-dustproof sleeve ring, 7-device ring, 8-jet hole, 9-micro air pump, 10-connecting pipe, 11-internal thread, 12-connecting ring, 13-dust cover, 14-rotating block, 15-anti-lost rope. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a building measurement level with a dustproof structure, comprising a device base 1, an adjustment structure 2 is arranged on the top of the device base 1, a connecting seat 3 is fixedly connected to the top of the adjusting structure 2, a mounting frame 4 is fixedly connected to the top of the connecting seat 3, and a measuring eyepiece 5 is fixedly connected to the inside of the mounting frame 4 in a transverse direction;

[0020] A dustproof collar 6 is fixedly connected to the front end of the measuring eyepiece 5, and an internally hollow device ring 7 is fixedly connected to the outer surface of the dustproof collar 6. A plurality of air jet holes 8 are uniformly and transversely penetrated through the front end surface of the device ring 7 along the circumferential direction of its cross section, and the plurality of air jet holes 8 are all connected to the internal cavity of the device ring 7. A micro air pump 9 is fixedly connected to the top end of the mounting frame 4, and a connecting pipe 10 is connected between the air outlet end of the micro air pump 9 and the device ring 7.

[0021] In this embodiment, when the device is actually used, after opening the measuring eyepiece 5, it is necessary to simultaneously turn on the micro air pump 9. After the micro air pump 9 is turned on, it will fill the inside of the device ring 7 with gas through the connecting pipe 10. Under the action of air pressure, the gas inside the device ring 7 will be ejected outward through multiple air jet holes 8, thereby forming an annular wind wall at the outer edge of the measuring eyepiece 5. When external dust approaches the measuring eyepiece 5, it will be blown away, thereby preventing dust from affecting the normal use of the device, thereby ensuring the observation effect.

[0022] Furthermore, a dust cover 13 is detachably mounted on the front end of the dustproof collar 6 .

[0023] An internal thread 11 is provided at the front end of the inner ring surface of the dustproof collar 6, and a connecting ring 12 is fixedly connected to the rear end surface of the dust cover 13. An external thread matching the internal thread 11 is provided on the outer surface of the connecting ring 12, and the dust cover 13 is detachably mounted on the front end of the dustproof collar 6 through the connecting ring 12.

[0024] In this embodiment, the dustproof ring 6 and the dustproof cover 13 cooperate with each other to completely seal the front end lens of the measuring eyepiece 5, so that the lens can be fully protected when the device is not in use to prevent the entry of dust and other impurities. When it is needed, the dustproof cover 13 can be rotated to remove it, which is convenient and quick. At the same time, the rear end lens of the device is also provided with the same protective structure.

[0025] Furthermore, the front end of the dust cover 13 is laterally rotatably connected to a rotating block 14 .

[0026] The bottom end of the rotating block 14 is fixedly connected with an anti-lost rope 15 , and the other end of the anti-lost rope 15 is fixedly connected to the lower surface of the front end of the measuring eyepiece 5 .

[0027] In this embodiment, the anti-lost rope 15 is connected to the dust cover 13 through the rotating block 14, which will not affect the rotation of the dust cover 13 and can also prevent it from being lost.

[0028] Furthermore, a plurality of connection holes are vertically provided through the bottom end of the device base 1 .

[0029] In this embodiment, a plurality of connection holes facilitates installation of the device on a support frame or other supporting equipment.

[0030] The working principle and use process of the utility model: after the utility model is installed, when the device is actually used, after opening the measuring eyepiece 5, it is necessary to simultaneously turn on the micro air pump 9. After the micro air pump 9 is turned on, it will fill the inside of the device ring 7 with gas through the connecting pipe 10. Under the action of air pressure, the gas inside the device ring 7 will be ejected outward through multiple air jet holes 8, thereby forming an annular wind wall at the outer edge of the measuring eyepiece 5. When external dust approaches the measuring eyepiece 5, it will be blown away, thereby preventing dust from affecting the normal use of the device, thereby ensuring the observation effect.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A level for building measurement with a dustproof structure, characterized in that: The device comprises a device base (1), the top of the device base (1) is provided with an adjustment structure (2), the top of the adjustment structure (2) is fixedly connected to a connection seat (3), the top of the connection seat (3) is fixedly connected to a mounting frame (4), and the interior of the mounting frame (4) is laterally fixedly connected to a measuring eyepiece (5); The front end of the measuring eyepiece (5) is fixedly connected to a dustproof collar (6), the outer surface of the dustproof collar (6) is fixedly connected to an internally hollow device ring (7), the front end surface of the device ring (7) is evenly spaced and laterally penetrated with a plurality of air jet holes (8) along the circumferential direction of its cross section, the plurality of air jet holes (8) are all connected to the internal cavity of the device ring (7), the top end of the mounting frame (4) is fixedly connected to a micro air pump (9), and a connecting pipe (10) is connected between the air outlet end of the micro air pump (9) and the device ring (7).

2. A level for building surveying with a dustproof structure as claimed in claim 1, characterized in that: A dust cover (13) is detachably mounted on the front end of the dustproof collar (6).

3. A level for building surveying with a dustproof structure as claimed in claim 2, characterized in that: The front end of the inner ring surface of the dustproof collar (6) is provided with an internal thread (11); the rear end surface of the dustproof cover (13) is fixedly connected to a connecting ring (12); the outer surface of the connecting ring (12) is provided with an external thread matching the internal thread (11); the dustproof cover (13) is detachably mounted on the front end of the dustproof collar (6) via the connecting ring (12).

4. A level for building surveying with a dustproof structure as claimed in claim 2, characterized in that: The front end of the dust cover (13) is laterally rotatably connected to a rotating block (14).

5. A level for building surveying with a dustproof structure as claimed in claim 4, characterized in that: The bottom end of the rotating block (14) is fixedly connected to an anti-lost rope (15), and the other end of the anti-lost rope (15) is fixedly connected to the lower surface of the front end of the measuring eyepiece (5).

6. A level for building surveying with a dustproof structure as claimed in claim 1, characterized in that: A plurality of connection holes are vertically penetrated through the bottom end of the device base (1).

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