CN211824727U - Shading device for testing lighting coefficient - Google Patents

Abstract

The utility model discloses daylighting coefficient test auxiliary device field discloses a shading device for daylighting coefficient test, including the A-frame and plant the stand on the A-frame top, stand top installation chassis, the chassis includes the draw-in groove, the fixture block all turns over to the enstrophe along fixture block moving direction's outside limit with the draw-in groove and constitutes the accepting groove with the top surface, the accepting groove is joined in marriage the joint and is had the removal seat, the top of removing the seat sets up the hemisphere groove, set up the rolling ball in the hemisphere groove, remove one side spiro union bolt of seat, the bolt extends to the hemisphere inslot, the top connecting screw of rolling ball, the black shading ball of top spiro union of screw rod. The utility model discloses adjust in the time of height and angle, realize the accurate regulation of black shading ball spatial position, the demand of fully provided daylighting test.

Description

Shading device for testing lighting coefficient

Technical Field

The utility model relates to a daylighting coefficient test auxiliary device field especially relates to a light shading device is used in daylighting coefficient test.

Background

The classroom is the place that the student used eyes for a long time, study, and in the place that the light is weak, eyeball need see clearly thing, need consume a large amount of rhodopsin, easily arouse student's hypopsia, even produce myopia. Therefore, the lighting coefficient of the classroom needs to be ensured to a certain extent.

And the lighting coefficient-illuminance is tested according to the lighting measurement method in the clear day in appendix A of GB/T5699-2017 lighting measurement method. When the standard requires measuring the sky illumination of outdoor horizontal plane, the shading ball is needed to be used to block direct sunlight and make the receiver just in the shadow completely, but because of different testing environments, the positions of the shading ball in the space are also different, so a universal shading device is needed to meet the testing requirement of the lighting coefficient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide an adjustable and fixed shading ball spatial position's general shape shade.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: the utility model provides a lighting coefficient test is with shade, include the A-frame and plant the stand on the A-frame top, stand top installation chassis, the chassis includes the draw-in groove, the fixture block, fixture block and draw-in groove all turn over to the enstrophe along fixture block moving direction's outside limit and constitute the accepting groove with the top surface, the accepting groove is joined in marriage the joint and is had the removal seat, the top of removing the seat sets up the hemisphere groove, set up the turning ball in the hemisphere groove, remove one side spiro union bolt of seat, the bolt extends to the hemisphere inslot, the top connecting screw a of turning ball, the top spiro union black ball that shades of screw a.

The utility model has the advantages that: the height of the chassis and the ground can be adjusted by the relative sliding of the upright post and the triangular support, so that the position of the black shading ball is raised; the rotating ball rotates in the hemispherical groove, the bolt is utilized to abut against and position, the rotating ball drives the screw rod a, the angle of the black shading ball is adjusted, the height and the angle are adjusted simultaneously, the accurate adjustment of the spatial position of the black shading ball is achieved, and the requirement of lighting test is fully met.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a schematic structural diagram of the chassis of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a shading device for a lighting coefficient test includes a triangular bracket 10 and an upright post 20 inserted at the top end of the triangular bracket 10, a bottom plate 30 is installed at the top end of the upright post 20, the bottom plate 30 includes a slot 31 and a block 32, the outer sides of the block 32 and the slot 31 are both turned inward and form a receiving groove 34 with a top surface, the receiving groove 34 is fittingly engaged with a movable base 40, a hemispherical groove 41 is formed at the top end of the movable base 40, a rotating ball 42 is arranged in the hemispherical groove 41, a bolt 43 is screwed at one side of the movable base 40, the bolt 43 extends into the hemispherical groove 41, the top end of the rotating ball 42 is connected with a screw a50, and the top end of the screw a50 is screwed with a black. The triangular support 10 plays a role in supporting and stabilizing the ground, and the upright post 20 inserted at the top end of the triangular support 10 can move up and down relative to the triangular support 10 to change the distance between the installation chassis 30 and the ground and drive the black shading ball 60 to lift; meanwhile, as shown in fig. 1, the movable seat 40 is clamped and contained in the containing groove 34, and can slide out from the side of the containing groove when needing to be replaced; the rotating ball 42 can rotate in the hemispherical groove 41, the angle of the black shading ball 60 is adjusted through the screw a50, the height and the angle are adjusted together, the black shading ball 60 can be ensured to shade the light from the sun, the receiver is ensured to be just in the shadow completely, and the universality is realized; furthermore, the black light-shielding ball 60 is screwed to one end of the screw a50, so that a plurality of black light-shielding balls 60 with different specifications can be prepared, thereby further improving the versatility of the light-shielding device of the present embodiment.

The chassis 30 further includes a second bolt 33, the latch 32 is retained in the latch slot 31, and the second bolt 33 passes through the latch 32 and extends into the cavity of the latch slot 31. The clamping block 32 is screwed with the clamping groove 31 through the second bolt 33, so that the bonding strength between the chassis 30 and the movable seat 40 can be effectively increased, and the movable seat 40 is stably clamped in the accommodating groove 34.

As shown in fig. 2, the triangular bracket 10 includes a top plate 11, three support rods 12 rotatably connected to the top plate 11 through a horizontal rotating shaft, a sleeve 13 is disposed on the top plate 11, a column 20 is disposed in the sleeve 13, a third bolt 14 is screwed on the sleeve 13, and the third bolt 14 extends inwards and butts against the column 20. The upright post 20 slides up and down in the sleeve 13, the third bolt 14 is additionally arranged on the sleeve 13, and the third bolt 14 is screwed inwards until the upright post 20 is pressed tightly, so that the positioning of the upright post 20 is realized.

As shown in fig. 3, a threaded groove is formed at the bottom end of the base plate 30, a suitable threaded block is fixedly arranged at the top end of the upright post 20, and the base plate 30 is screwed on the upright post 20. The detachable connection is convenient for the storage and transportation of the shading device of the embodiment.

As a specific structure of the supporting rod 12, the supporting rod 12 sequentially includes, from top to bottom, a screw 121, a threaded cylinder 122 screwed with the screw 121, and a non-slip mat 123 wrapped at the bottom end of the threaded cylinder 122. As shown in fig. 1, the length of the support rod 12 can be changed by rotating the threaded cylinder 122, and the top plate 11 can be easily kept horizontal on the inclined ground by adjusting the fit, and the height of the black shading ball 60 is further improved. The anti-slip pad 123 can increase the friction force between the support rod 12 and the ground, and improve the stability of the triangular bracket 10.

Certainly, for convenient transportation and installation, the whole set of device of this embodiment should select the carbon fiber material, and under the condition that does not reduce rigidity, anchor clamps weight need be light as far as possible, and this embodiment both can carry out the test of daylighting coefficient, also can utilize this platform to do other experiments, like test luminance, glare etc. easily carry, convenient switching.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. The utility model provides a shade for daylighting coefficient test, characterized in that, including A-frame (10) and insert stand (20) on A-frame (10) top, stand (20) top installation chassis (30), chassis (30) are including draw-in groove (31), fixture block (32) and draw-in groove (31) all turn over the enstrophe along the outside limit of fixture block moving direction and constitute accepting groove (34) with the top surface, accepting groove (34) are joined in marriage the joint and are had and move seat (40), the top of moving seat (40) sets up hemisphere groove (41), set up rolling ball (42) in hemisphere groove (41), move one side spiro union bolt (43) of seat (40), bolt (43) extend to in hemisphere groove (41), screw rod a (50) is connected to the top of rolling ball (42), the top spiro union black shading ball (60) of screw rod a (50).

2. The shading device for the lighting coefficient test according to claim 1, wherein the chassis (30) further comprises a second bolt (33), the latch (32) is clamped in the slot (31), and the second bolt (33) passes through the latch (32) and extends in threaded connection with the slot cavity of the slot (31).

3. The shading device for the lighting coefficient test according to claim 2, wherein the triangular bracket (10) comprises a top plate (11) and three support rods (12) rotatably connected with the side wall of the top plate (11) through a horizontal rotating shaft, a sleeve (13) is arranged on the top plate (11), the upright post (20) is arranged in the sleeve (13), a third bolt (14) is screwed on the side wall of the sleeve (13), and the third bolt (14) extends inwards to abut against the upright post (20).

4. The shading device for the lighting coefficient test according to claim 3, wherein a bottom end of the chassis (30) is provided with a threaded groove, a top end of the upright post (20) is fixedly provided with a matched threaded block, and the chassis (30) is screwed on the upright post (20).

5. The shading device for the lighting coefficient test according to claim 4, wherein the supporting rod (12) comprises a screw rod (121), a threaded cylinder (122) screwed with the screw rod (121), and a non-slip mat (123) wrapped at the bottom end of the threaded cylinder (122) in sequence from top to bottom.

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