CN102607376A

CN102607376A - Simple roundness detector for balls

Info

Publication number: CN102607376A
Application number: CN2012100547071A
Authority: CN
Inventors: 陈烁
Original assignee: 陈烁
Current assignee: Pizhou Longyuan Landscape Engineering Co., Ltd
Priority date: 2012-02-25
Filing date: 2012-02-25
Publication date: 2012-07-25
Anticipated expiration: 2032-02-25
Also published as: CN102607376B

Abstract

The invention discloses a simple roundness detector for balls, which is a new technical scheme of a detector, belongs to the field of detections tools and can be used for detecting rough roundness of a ball-shaped article through simple operation so as to judge whether the ball-shaped article is unfavorable to use. According to the technical scheme provided by the invention, the simple roundness detector comprises bottom feet, a base plate and three support rods, wherein the three support rods are identical and vertically, uniformly and fixedly connected with the periphery of the round base plate, the upper ends of the support rods are fixedly connected with a backing plate which is a round plate, is as large as the base plate and is parallel to the base plate, the periphery of the backing plate is provided with three vertical through holes in which rod sleeves are inlaid, the lower half sections of three lifting rods which are identical round rods movably penetrate in the rod sleeves, the lower ends of the lifting rods are all fixedly connected with a spring plate which is a round plate and is parallel to the backing plate and the base plate, a compressed spring is arranged between the spring plate and the base plate, a movable press plate which is a round plate is arranged at the tops of the three lifting rods, is provided with a handle and is larger than the backing plate, and height scale lines and readings are arranged on the lifting rods and rod sleeves. The simple roundness detector for balls is applicable to schools or stadiums and gymnasiums.

Description

Device is surveyed in the letter of spheroid circularity

Technical field:

The present invention is relevant with measuring appliance, specifically is meant spheroid circularity letter survey device.

Background technology:

In many occasions; People need carry out simple rough roundness measurement to some article or articles for use; These article or articles for use need possess certain circularity and don't require the too high standard in the picture machinery processing detection; Various cortex such as in the sports goods are ball, bigger sphere class apparatus such as basketball, football, vollyball particularly, thereby in use because of the impact of the frequent power that receives and variation of temperature usually can cause material inhomogeneous flexible occur oval; Promptly can be reduced to the outer a certain circularity of critical field by a certain circularity numerical value in the critical field; Big-difference appearred in the diameter of spheroid different parts, and the user only was difficult to judge with visual observation and measured this intensity of variation this moment, and the occasion of relatively concentrating in the ball use of sports is such as general school, sports school and stadiums; Teacher, coach or instrument management person often feel simply helpless in the face of this kind situation; Rejected when scrapping in case some balls find out the ellipse preparation, this ball has had a strong impact on use because of deformed damaged has exceeded allowed band in this obviously is out of shape training many times before or competes in fact, and people are but also still unaware; And introduce the special-purpose roundness tester device of more accurate machining like also need not and price higher unrealistic, so these occasions very need lower, simple to operate, the practical handy circularity detecting device of a kind of cost come to use after a while ball detect screening with better service in training and competition.

Summary of the invention:

The object of the invention is that a kind of new technical scheme of measuring appliance is provided is that device is surveyed in the letter of spheroid circularity, the aforesaid problem of solution that it can be easily and effectively.

Theing contents are as follows of technical scheme of the present invention: it comprises footing, base plate, pole; Said pole is same three and vertically is fixed in the circular bottom plate periphery uniformly; Onesize and plectane that parallel is a backing plate with base plate in pole upper end then affixed; The backing plate periphery is processed with three vertical open-works, is inlaid with the bar cover in the hole, lower semisection that three same round bars are elevating lever movable through in the bar cover; It is on the spring plank with base plate with all parallel plectane of backing plate that the elevating lever lower end all is fixed in one; Device has a stage clip between spring plank and base plate, one is processed with handle, is the upper end that movable pressing board places three elevating levers than the bigger plectane of backing plate, puts at elevating lever and bar and is processed with altitude scale line and reading.

The invention has the beneficial effects as follows that the rough circularity that can detect spherical article through shirtsleeve operation is conveniently to judge whether no longer suitable the use.

Description of drawings:

Fig. 1 is the design's a front elevation.

Fig. 2 is the design's the user mode view of giving an example.

Among the figure, 1 is handle, and 2 is movable pressing board, and 3 is spheroid, and 4 is elevating lever, and 5 are scale mark (containing reading), and 6 is the bar cover, and 7 is backing plate, and 8 is spring plank, and 9 is pole, and 10 is stage clip, and 11 is base plate, and 12 is footing.

Embodiment:

As shown in Figure 1; Select a circular sheet metal to make base plate 11 such as steel plate; Stability when the footing 12 of three tapers is put or used to increase on the peripheral device of its bottom surface; The periphery on plane then vertically is connected with three same poles 9 uniformly on base plate, and onesize and plectane that parallel is a backing plate 7 with base plate in pole upper end affixed again; The backing plate periphery is processed with equally distributed three vertical open-works; Be inlaid with bar cover 6 in the hole; For well, inner wall surface thereof is done the finishing of higher smooth finish to the height of bar cover, installs the stability that this bar cover can be given its interior bar direction of motion when moving up and down with the thickness that slightly exceeds backing plate; Choosing three same round bars is elevating lever 4 is also made higher smooth finish on its surface processing; The bar footpath is near the internal diameter of bar cover; Make it in cover, up-down smoothly slide and to have only atomic little negligible rocking in the horizontal direction in 6 movable the overlapping of the lower semisection of elevating lever through bar; It is on the spring plank 8 with base plate 11 with all parallel plectane of backing plate 7 that the lower end of elevating lever all is fixed in one; This structural design can guarantee three synchronisms in the lifter rod lifting motion to greatest extent; The top end face that guarantees elevating lever is to the distance of the spring plank of bar lower end determinacy and the homogeneity at any lifting position; Also can guarantee the parallel all the time of spring plank 8 and backing plate 7, we know, desire utilizes two planes that the diameter of spheroid is detected; Must satisfy two conditions: two planes remain and are parallel to each other and contact spherome surface, and aforesaid elevating lever and each parts that is connected comprise that the acting in conjunction of backing plate, bar cover and following movable pressing board, spring plank, stage clip etc. satisfied these conditions to greatest extent; Device has a stage clip 10 so that spring plank 8 is done flexible support between spring plank and base plate, and stage clip can be pressed down or upsprings with spring plank and elevating lever when pressure applies or removes; One be processed with handle 1, be the upper end that movable pressing board 2 places three elevating levers than the bigger plectane of backing plate; At this moment, movable pressing board 2 also is that parallel and under it does not break away from the prerequisite of upper surface of three elevating levers, also can remain parastate with backing plate 7 undoubtedly; Be processed with altitude scale line and reading on the bar cover of an elevating lever therein and the facade outwardly of upper semisection elevating lever with convenient observation measurement; When elevating lever can reflect through scale mark when moving up and down with respect to the bar cover clearly; So, the letter of the design's spheroid circularity is surveyed device and is just processed assembled.When manipulating; Spheroid 3 to be detected is placed in the space below top, the movable pressing board 2 of backing plate 7; The actuating handle 1 slight application of force presses down movable pressing board 2 and impels it that three elevating levers 4 are pressed down synchronously after the lower plane of movable pressing board touches detection ball end face; Actuating movable pressing board rotating or other multidirectional reciprocal craspedodrome of big ringlet in the horizontal direction again when keeping this slight pressure to guarantee that the upper surface of lower plane and sphere and three elevating levers of movable pressing board 2 contacts constantly; So just, the pressing plate that innervates presses spherome surface as much as possible and obtains the whole actual state of spheroid circularity with detection, again since the area of movable pressing board in its horizontal motion, can not be separated from easily greatly and the contacting of the upper surface of three elevating levers yet; When spheroid is rolled to less diameter place by bigger diameter place or is rolled to bigger diameter place by less diameter place; Three elevating levers can the elastic anchorage force that overcomes stage clip under the pressure of movable pressing board descend synchronously thereupon or support at ball under rise synchronously thereupon; As shown in Figure 2; Movable pressing board, backing plate can keep in touch with spheroid to be detected and be parallel to each other all the time; The operator on one side actuating handle rolling ball body on one side through overlapping the cheer and bright difference in change variant pronunciation number that draws size diameter of variation at place suitable for reading at bar scale mark (containing reading) 5 of observing on the elevating lever, come to use after a while ball carry out promptly and accurately screening detection with better service in training and competition.Survey the difference that this device can detect the minimax diameter factually and change, can satisfy circularity detection fully inflation class ball bigger in the sports at 1-2mm and above circularity; The detection easy and simple to handle of the design's simple in structure and low in cost is clear, and being applicable to manyly has requirement but not too high occasion to article circularity.

Claims

1. device is surveyed in a spheroid circularity letter; It comprises footing, base plate, pole; It is characterized in that said pole is same three and vertically is fixed in the circular bottom plate periphery uniformly, onesize and plectane that parallel is a backing plate with base plate in pole upper end then affixed, and the backing plate periphery is processed with three vertical open-works; Be inlaid with the bar cover in the hole; The lower semisection that three same round bars are elevating lever movable through in the bar cover, it is on the spring plank with base plate with all parallel plectane of backing plate that the elevating lever lower end all is fixed in one, device has a stage clip between spring plank and base plate; One be processed with handle, be the upper end that movable pressing board places three elevating levers, put at elevating lever and bar and be processed with altitude scale line and reading than the bigger plectane of backing plate.