CN215769046U

CN215769046U - Low-background alpha and beta measuring instrument

Info

Publication number: CN215769046U
Application number: CN202121223167.6U
Authority: CN
Inventors: 张博
Original assignee: Henan Da'an Testing Technology Co ltd
Current assignee: Henan Da'an Testing Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-02-08
Anticipated expiration: 2031-06-02

Abstract

The utility model provides a low background alpha and beta measuring instrument, which relates to the technical field of alpha and beta measuring instruments and comprises a box body, wherein a measuring instrument body is arranged in the box body, a sliding door is connected on the box body in a sliding way, an arc-shaped groove is formed in the upper end of the sliding door, fixed blocks are arranged at two ends of the upper side of the box body, the fixed blocks are hinged with one end of a connecting frame, the other end of the connecting frame is hinged with a round stop rod, an elastic reset piece is arranged at the hinged position of the connecting frame and the fixed blocks and at one side far away from the box body, the round stop rod is abutted against the sliding door through the fixed blocks and the connecting frame, when the round stop rod enters the arc-shaped groove, the round stop rod stops the sliding door from sliding on the box body, the sliding door can be quickly abutted against the box body only by moving the sliding door, and when the box body needs to be opened, the sliding door only needs to be pushed, so that the round stop rod compresses the elastic reset piece through the connecting frame, the sliding door can be opened, the operation is convenient, and the working efficiency is high.

Description

Low-background alpha and beta measuring instrument

Technical Field

The utility model relates to the technical field of alpha and beta measuring instruments, in particular to a low-background alpha and beta measuring instrument.

Background

The two-way low background alpha beta measuring instrument is provided with two independent low background alpha beta main detectors, can simultaneously measure two samples and respectively provides measurement of total alpha activity and total beta activity concentration in the two samples. The sensor has the characteristics of high sensitivity, low background, simple structure, convenient, stable and reliable operation and the like. The method can be used for measuring the total activity of the alpha beta in the fields of radiation protection, environmental samples, edible water, medical and health, agricultural science, nuclear power stations, reactors, isotope production, geological exploration, universities and colleges, scientific research and the like. The test of the national standard GB5749-2006 for the sanitary standard of the drinking water on the total alpha and total beta radioactivity indexes is met.

In the chinese patent with the publication number CN211478663U, a low background alpha and beta measuring instrument is disclosed, which comprises a box body, a measuring instrument body is arranged in the cavity of the box body, a box door is also rotatably arranged on the box body, the box door and the box body are also provided with a fastening mechanism, the fastening mechanism comprises a plurality of guide rings fixedly arranged on the outer side wall of the box door, a fastening rod is slidably arranged in the guide ring, a driving device for driving the fastening rod to slide along the guide ring is fixedly arranged on the outer side wall of the box door, a first fastening block is fixedly arranged on the side wall of one side of the fastening rod, which is far away from one end of the driving device and is close to the box body, a second fastening block is fixedly arranged on the side wall of one side of the first fastening block, which is far away from one end of the fastening rod and is close to the box door, and a fastening groove matched with the second fastening block is formed in the outer side wall of the opening of the box body in the circumferential direction.

However, the above technical scheme still has following defect, and the device is in the in-process of supporting the chamber door tightly with the box, need successively control three handle, and complex operation is inconvenient, and is inconvenient with the quick and box support tightly with the chamber door and open, influences work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low background alpha and beta measuring instrument, and aims to solve the problems that in the process of tightly abutting a box door and a box body, three handles need to be controlled in sequence, the operation is complex, the box door is not convenient to be quickly abutted against and opened from the box body, and the working efficiency is influenced in the low background alpha and beta measuring instrument in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: low background alpha, beta measuring apparatu, the power distribution box comprises a box body, the inside of box is provided with the measuring apparatu body, sliding connection has the sliding door on the box, the arc wall has been seted up to the upper end bilateral symmetry of sliding door, the upside both ends symmetry of box is provided with the fixed block, the fixed block is articulated with the one end of link, the other end and the round bar of link are articulated, link and fixed block articulated position and the one side of keeping away from the box are provided with the elasticity piece that resets.

In order to facilitate the sliding of the sliding door on the box body, the utility model has the further technical scheme that the upper end and the lower end of one side of the box body are respectively provided with a sliding groove, and the upper end and the lower end of the sliding door are respectively provided with a sliding rail which is arranged corresponding to the sliding groove.

In order to prevent the connecting frame from rotating too much, the utility model has the further technical scheme that two sides of the upper end of the box body are symmetrically provided with the jacking blocks for limiting the connecting frame.

In order to conveniently control the position relation between the sliding door and the round stop rod, the utility model adopts the further technical scheme that the box body is fixedly connected with two ends of the U-shaped rod through the fixing block, the box body is fixedly connected with one end of the guide rod, the other end of the guide rod is fixedly connected with the U-shaped rod, and the guide rod is connected with a link mechanism which is used for controlling the connecting frame to move up and down in a penetrating manner.

In order to enable the circular stop rod and the arc-shaped groove to be clamped with each other in a normal working state, the connecting rod mechanism comprises a cross rod which is in through connection with a guide rod, the cross rod is in rotating connection with the connecting frame through a rotating rod, and a spring is arranged on the guide rod and between the U-shaped rod and the cross rod.

In order to facilitate the sliding door to be pushed, the utility model adopts the further technical scheme that a handle is arranged on the outer surface of the sliding door.

In order to prevent the vibration of the box body from influencing the stability of the measuring instrument body, the utility model has the further technical scheme that four rubber pads for damping are arranged at the bottom of the box body.

In order to clean the dust on the inner side of the sliding door conveniently, the utility model has the further technical proposal that a cleaning brush for cleaning the inner side of the sliding door is arranged on the box body,

in order to facilitate replacement and maintenance, a further technical scheme of the utility model is that the elastic reset piece is a torsion spring.

The utility model has the beneficial effects that:

1. through setting up the circle pin, the link, the fixed block, the arc wall of seting up on elasticity piece and the sliding door that resets, elasticity resets and makes circle pin and sliding door support tightly through fixed block and link, when the gliding in-process circle pin enters into the arc wall on the box of sliding door, the circle pin prevents the sliding door from sliding on the box, only need to remove the sliding door alright support tightly fast with the completion sliding door with the box, and when the box is opened to needs, only need promote the sliding door, make the circle pin pass through link compression elasticity piece that resets, alright open the sliding door, and convenient for operation, high work efficiency.

2. Through setting up the horizontal pole, the connecting rod, guide bar and spring, control horizontal pole upward movement, then drive the link upward movement through the dwang, make circle pin and arc wall break away from, the side promotes the sliding door, the guide bar can make the in-process of horizontal pole up-and-down motion more stable, the spring can be making the horizontal pole pass through dwang extrusion link under the effect of not having the external force always, make circle pin and sliding door be in and support tight state, and make, the rubber pad can reduce the harm that receives when the measuring apparatu body receives the collision, the cleaning brush can make the sliding door when the box up-motion, the surface that is close to box one side on the sliding door cleans, keep the inside clean and tidy of box, the handle can make things convenient for staff control sliding door, improve staff's work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the embodiment of the present invention.

Fig. 3 is a schematic structural view of a cleaning brush and a chute according to an embodiment of the utility model.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural view of a sliding door according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a cross bar and a rotating bar according to an embodiment of the present invention.

FIG. 7 is a schematic view of a U-shaped bar configuration of an embodiment of the present invention.

In the figure: 1. a box body; 2. a sliding door; 3. an arc-shaped slot; 4. a fixed block; 5. a round bar; 6. a connecting frame; 7. an elastic reset member; 8. a chute; 9. a slide rail; 10. a top block; 11. a U-shaped rod; 12. a guide bar; 13. a link mechanism; 1301. a cross bar; 1302. rotating the rod; 1303. a spring; 14. a handle; 15. a rubber pad; 16. a cleaning brush.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-7, a low background alpha, beta measuring apparatu, including box 1, the inside of box 1 is provided with the measuring apparatu body, sliding connection has sliding door 2 on the box 1, the arc wall 3 has been seted up to sliding door 2's upper end bilateral symmetry, the upside both ends symmetry of box 1 is provided with fixed block 4, fixed block 4 is articulated with the one end of link 6, the other end and the round bar 5 of link 6 are articulated, link 6 and the articulated position of fixed block 4 and keep away from one side of box 1 and be provided with elasticity reset piece 7.

In the embodiment, when data is measured by the measuring instrument body, the sliding door 2 is controlled first, in the process that the sliding door 2 slides on the box body 1, when the arc-shaped grooves 3 formed on two sides of the upper end of the sliding door 2 slide to the lower side of the circular blocking rod 5, under the action of the elastic reset piece 7, namely the torsion spring, the fixed block 4 and the connecting frame 6, the circular blocking rod 5 is clamped with the arc-shaped grooves 3, at the moment, the sliding door 2 seals the box body 1, the elastic reset piece 7 enables the circular blocking rod 5 to be tightly abutted with the sliding door 2 through the fixed block 4 and the connecting frame 6, when the circular blocking rod 5 enters the arc-shaped grooves 3 in the process that the sliding door 2 slides on the box body 1, the circular blocking rod 5 prevents the sliding door 2 from sliding on the box body 1, the sliding door 2 can be quickly tightly abutted with the box body 1 only by moving the sliding door 2, and when the box body 1 needs to be opened, the sliding door 2 is pushed, the circular blocking rod 5 compresses the elastic reset piece 7 through the connecting frame 6, the sliding door 2 can be opened, the operation is convenient, and the working efficiency is high.

In another embodiment of the present invention, the upper end and the lower end of one side of the box body 1 are respectively provided with a sliding chute 8, the upper end and the lower end of the sliding door 2 are respectively provided with a sliding rail 9 arranged corresponding to the sliding chute 8, and the sliding door 2 can slide on the box body 1 through the sliding rail 9 and the sliding chute 8 arranged on the box body 1.

Specifically, the upper end bilateral symmetry of box 1 is provided with and is used for the spacing kicking block 10 of link 6, and when sliding door 2 slided on box 1, when one of them arc wall 3 can drive operating condition and its corresponding round bar 5 to the direction motion of being close to 2 middle part positions of sliding plate, kicking block 10 can prevent to be too big with the 6 rotation amplitude of 5 articulated links of round bar, leads to the device to damage or become invalid.

Further, the box body 1 is fixedly connected with two ends of the U-shaped rod 11 through the fixing block 4, the box body 1 is fixedly connected with one end of the guide rod 12, the other end of the guide rod 12 is fixedly connected with the U-shaped rod 11, the guide rod 12 is connected with a link mechanism 13 for controlling the link frame 6 to move up and down in a penetrating manner, the link mechanism 13 comprises a cross rod 1301 in a penetrating manner with the guide rod 12, the cross rod 1301 is rotatably connected with the link frame 6 through a rotating rod 1302, a spring 1303 is arranged on the guide rod 12 and between the U-shaped rod 11 and the cross rod 1301, the cross rod 1301 in the link mechanism 13 is controlled to move along the guide rod 12 in a direction close to the upper end of the U-shaped rod 11, at the moment, the cross rod 1301 drives the rotating rod 1302 to move in a direction close to the upper end of the U-shaped rod 11, the rotating rod 1302 drives the connecting frame 6 to move in a direction close to the upper end of the U-shaped rod 11, and the connecting frame 6 drives the circular blocking rod 5 to move in a direction close to the upper end of the U-shaped rod 11, thereby make the arc wall 3 separation on round pin 5 and the sliding door 2, can control sliding door 2 and control this moment and remove on box 1, when the device was in operating condition, torsion spring and link 6 made round pin 5 be located arc wall 3, and the spring 1303 that cup joints on the guide bar 12 makes horizontal pole 1301 to the direction motion that is close to sliding door 2, and horizontal pole 1301 drives the cooperation that dwang 1303 and link 6 lasted round pin 5 and arc wall 3.

Specifically, the handle 14 is arranged on the outer surface of the sliding door 2, and when the sliding door 2 needs to be pushed, the handle 14 is used for controlling the movement of the sliding door 2 on the box body 1, so that the sliding door 2 is conveniently adjusted.

Specifically, the bottom of box 1 is provided with four rubber pads 15 that are used for the shock attenuation, and rubber pads 15 can be so that when placing box 1 and measuring apparatu body on the workstation, prevent because of the harm that box 1 and workstation bump lead to the measuring apparatu body.

Further, the box body 1 is provided with a cleaning brush 16 for cleaning the inner side of the sliding door 2, when the sliding door 2 slides on the box body 1, the cleaning brush 16 cleans the inner side of the sliding door 2, and dust on the inner side of the sliding door 2 is prevented from influencing the measuring instrument body.

Preferably, the elastic reset piece 7 is a torsion spring, the torsion spring contacts the circular stop lever 5 with the sliding door through the connecting frame 6, and when the arc-shaped groove 3 is located below the sliding lever 5, the torsion spring drives the connecting frame 6 to extrude the circular stop lever 5 into the arc-shaped groove 3, so as to position and fix the sliding door 2.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a low background alpha, beta measuring apparatu, includes box (1), the inside of box (1) is provided with the measuring apparatu body, characterized by, sliding connection has sliding door (2) on box (1), arc wall (3) have been seted up to the upper end bilateral symmetry of sliding door (2), the upside both ends symmetry of box (1) is provided with fixed block (4), fixed block (4) are articulated with the one end of link (6), the other end and the round pin (5) of link (6) are articulated, link (6) and fixed block (4) articulated position just keep away from one side of box (1) and be provided with elasticity piece (7) that resets.

2. The low background alpha and beta measuring instrument according to claim 1, wherein the upper and lower ends of one side of the box body (1) are respectively provided with a sliding chute (8), and the upper and lower ends of the sliding door (2) are respectively provided with a sliding rail (9) which is arranged corresponding to the sliding chute (8).

3. The low background alpha and beta measuring instrument according to claim 2, wherein two sides of the upper end of the box body (1) are symmetrically provided with top blocks (10) for limiting the connecting frame (6).

4. The low background alpha and beta measuring instrument according to claim 1, wherein the box body (1) is fixedly connected with two ends of a U-shaped rod (11) through a fixing block (4), the box body (1) is fixedly connected with one end of a guide rod (12), the other end of the guide rod (12) is fixedly connected with the U-shaped rod (11), and a link mechanism (13) for controlling the connecting frame (6) to move up and down is connected to the guide rod (12) in a penetrating manner.

5. The low background alpha and beta measuring instrument according to claim 4, wherein the link mechanism (13) comprises a cross bar (1301) which is connected with a guide rod (12) in a penetrating way, the cross bar (1301) is connected with the connecting frame (6) in a rotating way through a rotating rod (1302), and a spring (1303) is arranged on the guide rod (12) and between the U-shaped rod (11) and the cross bar (1301).

6. The low background α, β meter according to claim 1, wherein the outer surface of the sliding door (2) is provided with a handle (14).

7. The low background alpha, beta measuring instrument according to claim 1, characterized in that the bottom of the box body (1) is provided with four rubber pads (15) for shock absorption.

8. The low background alpha, beta measuring instrument according to claim 1, characterized in that a cleaning brush (16) for cleaning the inner side of the sliding door (2) is provided on the box body (1).

9. The low background α, β meter according to any of claims 1-8, wherein the resilient return member (7) is a torsion spring.