CN201267479Y

CN201267479Y - Grid storage device

Info

Publication number: CN201267479Y
Application number: CNU200820095754XU
Authority: CN
Inventors: 张建兵; 王满强; 夏磊
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2009-07-08
Anticipated expiration: 2018-07-23

Abstract

The utility model discloses a grid storage device which comprises a bracket and a left lead rail and a right lead rail fixed on the bracket in parallel; the opposite inner sides of the left lead rail and the right lead rail are all provided with a guide slot; each guide slot is provided with a top side surface, a bottom surface and a bottom side surface in sequence; and at least one of the bottom surface and the bottom side surface of each guide slot is provided with at least one rolling body. The bottom surface and the bottom side surface of each guide slot are all provided with a rolling body. The grid is rubbed with the rolling body in a rolling way when being inserted by setting the rolling body, and thus reducing the friction resistance, the abrasion and the noise.

Description

The grid storing unit

Technical field

This utility model is about a kind of grid storing unit, especially about a kind of grid storing unit that is applied in the X ray camera chain.

Background technology

In the X ray image product,, generally all dispose the grid that is used for this scattered rays of filtering in order to reduce of the influence of X ray scattered rays to imaging.Grid has two kinds of movable grid and fixed grids.Movable grid structure complexity, cost is higher, generally seldom adopts.Fixed grid structure is simple, but generally need change the grid of different size according to the difference of taking position, in order to reach the purpose of replacing, generally storing unit need be set.General two long guideways that have gathering sill that adopt of existing storing unit, these two long guideways are arranged symmetrically on the mounting bracket, and utilize single cantilever-shaped flat spring to add buckle in the grid insertion end and come locking positioning, corresponding end of travel then is provided with the shaping piece spring as energy-storage travelling wave tube, to realize locking positioning and the purpose that ejects automatically.But, this kind storing unit has following shortcoming: 1) the grid insertion contacts with guide pass with At time of eject, frictional resistance is big and noise is big, for reducing friction, guide rail generally adopts polyformaldehyde (POM) material manufacture, grid is in the plug process, there is to fall the phenomenon of abrasive dust in guide rail, in addition, in order to guarantee that grid can eject the shell of flat panel detector assembly, need energy-storage travelling wave tube to have bigger spring force, the resistance that the spring force increase can make grid insert increases, and makes grid insert difficulty more; 2) adopt single flat spring to add the mode of buckle, buckle is generally selected stainless steel material, and the buckle quality is big, but recoil of spring power is little, and rebound velocity is low, often occur grid insert behind the guide rail can't auto lock phenomenon.

Summary of the invention

Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, provide a kind of when reducing grid and inserting frictional resistance and the grid storing unit of noise.

The technical solution adopted for the present invention to solve the technical problems is: a kind of grid storing unit, comprise support and the secured in parallel left and right guide rail on this support, this left and right guide rail inboard in opposite directions is equipped with gathering sill, each gathering sill all has top surface, basal surface and bottom side surface in turn, and at least one rolling element is housed one of at least in the basal surface of each gathering sill and the bottom side surface.

Consistent and the symmetry one by one of the number of the rolling element of the described basal surface that is loaded on left and right way is loaded on the consistent and symmetry one by one of the number of rolling element of bottom side surface of left and right way.

The described surface that rolling element is housed is provided with embedded groove, rolling element is a bearing, and this surface is stretched out in the outer ring of this rolling element, and the inner ring and the back shaft of this rolling element are fixed, this back shaft places in this embedded groove and is fixed on the bearing spider, and this bearing spider is fixed in this embedded groove.

Described right guide rail has the insertion end that is positioned at grid insertion initial position, this insertion end is provided with latch assembly, this latch assembly comprises that buckle and at least two flat springs, each flat spring stack fixing and cantilever-shaped this insertion end that is arranged on, and this buckle is arranged on the flat spring of the most close grid.

Described buckle is the low density aluminum alloy body.

Also be fixed with energy storage component on the described support, this energy storage component is between left and right guide rail and be positioned at the end that grid inserts stroke.

Described energy storage component contains any energy-storage travelling wave tube in cylindrically coiled spring, conical helical spring, disk spring or the shaping piece spring.

Described left and right guide rail has length difference.Be fixed with sense switch on the described support.

The invention has the beneficial effects as follows 1) by rolling element is set, when grid is inserted and the rolling element rolling friction, reduced frictional resistance, reduce the abrasive dust wearing and tearing, and reduced noise.2) adopt at least two flat springs stacks, improved the locking resilience force, shortened the time of buckle resilience, guarantee that the time difference that grid pushes time and buckle resilience satisfies the requirement that buckle springs into, and has solved the problem of grid locking inefficacy.3), make the horizontal storage that this storing unit can the simultaneous adaptation grid and vertically deposit by at the basal surface of gathering sill and bottom side surface installing rolling element.4) left and right guide rail has length difference, can play the effect that grid inserts guiding.5), under same flat spring resilience force effect, guarantee not to be prone to the situation that locking was lost efficacy after grid inserts because buckle is the low density aluminum alloy body.

Description of drawings

Fig. 1 is the structural representation of present embodiment grid storing unit;

Fig. 2 is the partial enlarged drawing at A indication place among Fig. 1;

Fig. 3 is the cutaway view of Fig. 1 along the B-B direction;

Fig. 4 is the cutaway view of Fig. 1 along the C-C direction;

Fig. 5 is the structural representation of present embodiment grid storing unit when being in level;

Fig. 6 is the structural representation of present embodiment grid storing unit when being in vertical state.

The specific embodiment

To shown in Figure 6, present embodiment grid storing unit places in the shell of flat panel detector assembly as Fig. 1, and it comprises support 1, left rail 7, right guide rail 4, energy storage component, latch assembly and sense switch 5.This support 1 is fixed in the shell of this flat panel detector assembly, and the fixed distance that this left and

right guide rail

7,4 is parallel to each other and the interval is certain is on this support 1, and this left rail 7 inserts the effect of leading than right guide rail 4 length thereby play grid 6.This left and

right guide rail

7,4 inboard in opposite directions is equipped with gathering sill 20, the gathering sill 20 of this left and

right guide rail

7,4 all has top surface 201, basal surface 202 and the bottom side surface 203 that connects in turn, and the basal surface 202 of each gathering sill 20 and bottom side surface 203 are embedded with first rolling element 14 and second rolling element 11 respectively.The basal surface 202 of each gathering sill 20 all is concaved with first embedded groove 204, this first rolling element 14 is a bearing, the outer ring part of this first rolling element 14 is stretched out this basal surface 202, the tight cover of the inner ring of this first rolling element 14 first back shaft 15, this first back shaft 15 places in this first embedded groove 204 and is fixed on the clutch shaft bearing bearing 16, and this clutch shaft bearing bearing 16 is fixed in this first embedded groove 204.The bottom side surface 203 of each gathering sill 20 is concaved with second embedded groove 205, this second rolling element 11 is a bearing, the outer ring part of this second rolling element 11 is stretched out this bottom side surface 203, the tight cover of the inner ring of this second rolling element 11 second back shaft 13, this second back shaft 13 places in this second embedded groove 205 and is fixed on second bearing spider 12, and this second bearing spider 12 is fixed in this second embedded groove 205.This left and

right guide rail

7,4 all has the insertion end that is positioned at grid 6 insertion initial positions and is positioned at the energy storage end that grid inserts terminal position, the insertion end of this left and

right guide rail

7,4 and energy storage end are respectively arranged with each one of first rolling element 14 and second rolling element 11, four first rolling elements 14 and four second rolling elements 11 symmetric arrangement in left and right guide rail 7,4.The spacing of first rolling element 14 of setting-in when it vertically inserts at grid 6, supports two sides of grid 6 according to the width design of grid 6 respectively in left rail 7 and the right guide rail 4.When grid 6 levels were inserted, second rolling element 11 of setting-in was used to support the bottom surface of grid 6 jointly in left rail 7 and the right guide rail 4.

Energy storage component is fixed on the support 1, and it is between the energy storage end of left and right guide rail 7,4.This energy storage component comprises fixed block 2 and energy-storage travelling wave tube 3, and this fixed block 2 is fixing with support 1, and this energy-storage travelling wave tube 3 is connected with this fixed block 2, this energy-storage travelling wave tube 3 as existing shaping piece spring, cylindrically coiled spring, conical helical spring or disk spring etc.Latch assembly is arranged on the insertion end of right guide rail 4, this latch assembly comprises first flat spring 9 and the second short flat spring 8 of length that buckle 10, length are long, this first and second flat spring 9,8 stacks fixing and the cantilever-shaped insertion end that is installed in this right side guide rail 4, this buckle 10 is installed on this first flat spring 9, and this buckle 10 is made by low-density aluminum alloy materials.Sense switch 5 is fixed on the support 1.

The difference that position is taken in photography according to X ray, the flat panel detector assembly has level and vertical two kinds of positioning states.

1) when level, grid 6 levels are inserted in the gathering sill 20 of left and

right guide rail

7,4, the head of grid 6 touches buckle 10 and outwards breaks into two with one's hands, push away before grid 6 continues and touch second rolling element 11, and drive second rolling element 11 around 13 rotations of second back shaft, grid 6 is contacted by face with guide rail and becomes the line contact, the resistance that pushes of grid 6 becomes rolling frictional resistance, further promote grid 6 and make its compressed energy-storage element 3, the kinetic energy that pushes grid 6 is converted to the potential energy of energy-storage travelling wave tube 3; When the recess of grid 6 handles was about to contact with buckle 10, under the resilience force effect of synergetic first and second flat spring 9,8, buckle 10 was inwardly replied, and buckle 10 left ends buckle into the recess of grid handle, thereby locked this grid 6.When grid 6 is pushed into sense switch 5 positions, can the detection trigger switch, obtain the signal that grid inserts.When needs are changed grid 6, buckle 10 is outwards broken into two with one's hands, grid 6 breaks away from the constraint of buckle 10, energy-storage travelling wave tube 3 potential energy discharge, promoting grid 6 outwards slides along left and

right guide rail

7,4 levels, under the rolling action of second rolling element 11 in each gathering sill 20, frictional resistance is very little, the potential energy major part of energy-storage travelling wave tube 3 is converted to the kinetic energy of grid 6, very little ejection elastic force just can make the handle of grid 6 expose the shell of flat panel detector assembly fully, reaches the purpose that is convenient for changing grid.

2) when vertical state, operation principle is with basic identical when level, difference is that it mainly is first rolling element 14 that grid 6 inserts what play the guiding role with At time of eject, especially be installed in two first rolling elements 14 on the right guide rail 4, first rolling element 14 becomes rolling friction to the sliding friction between existing grid and the guide rail, reduce the energy loss of energy-storage travelling wave tube 3, make grid 6 push and eject more smooth and easy.

In the present embodiment, the basal surface 202 of the gathering sill 20 of left and right guide rail and bottom side surface 203 are embedded with first rolling element 14 and second rolling element 11 respectively; Certainly, also can be only at basal surface setting-in first rolling element or only at bottom side surface setting-in second rolling element.This rolling element can symmetry be installed, and also can asymmetricly install; This rolling element can adopt embedded installation, also can not adopt the mode of embedding to install.In each gathering sill first and second rolling element of setting-in can have one, two or more.This rolling element can be a bearing, also can be existing roller or ball, or other can realize the rolling element with the grid rolling friction.Locking device has buckle and two flat springs, also plural flat spring can be arranged certainly.

Above content be in conjunction with concrete preferred implementation to further describing that this utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from this utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. grid storing unit, comprise support and the secured in parallel left and right guide rail on this support, this left and right guide rail inboard in opposite directions is equipped with gathering sill, each gathering sill all has top surface, basal surface and bottom side surface in turn, it is characterized in that: at least one rolling element is housed one of at least in the basal surface of each gathering sill and the bottom side surface.

2. grid storing unit according to claim 1 is characterized in that: the basal surface of described each gathering sill and bottom side surface all are equipped with rolling element.

3. grid storing unit according to claim 2, it is characterized in that: the consistent and symmetry one by one of the number of the rolling element of the described basal surface that is loaded on left and right way is loaded on the consistent and symmetry one by one of the number of rolling element of bottom side surface of left and right way.

4. according to any described grid storing unit among the claim 1-3, it is characterized in that: the described surface that rolling element is housed is provided with embedded groove, rolling element is a bearing, this surface is stretched out in the outer ring of this rolling element, the inner ring and the back shaft of this rolling element are fixed, this back shaft places in this embedded groove and is fixed on the bearing spider, and this bearing spider is fixed in this embedded groove.

5. grid storing unit according to claim 1, it is characterized in that: described right guide rail has the insertion end that is positioned at grid insertion initial position, this insertion end is provided with latch assembly, this latch assembly comprises buckle and at least two flat springs, each flat spring stacks fixing and cantilever-shaped this insertion end that is arranged on, and this buckle is arranged on the flat spring of the most close grid.

6. grid storing unit according to claim 5 is characterized in that: described buckle is the low density aluminum alloy body.

7. according to any described grid storing unit among the claim 1-3,5,6, it is characterized in that: also be fixed with energy storage component on the described support, this energy storage component is between left and right guide rail and be positioned at the end that grid inserts stroke.

8. grid storing unit according to claim 7 is characterized in that: described energy storage component contains any energy-storage travelling wave tube in cylindrically coiled spring, conical helical spring, disk spring or the shaping piece spring.

9. grid storing unit according to claim 1 is characterized in that: described left and right guide rail has length difference.

10. grid storing unit according to claim 1 is characterized in that: be fixed with sense switch on the described support.