Inner lead sealing structure of irradiation instrument lead chamber

Abstract

The utility model provides an inner lead seal structure of an irradiator lead chamber, which comprises a lead chamber, an inner partition plate is arranged in the middle of the lead chamber, a circular inner partition plate through hole is arranged on the inner partition plate, a bulb tube is arranged in the lead chamber, the bulb tube and the inner partition plate through hole are concentrically arranged, an inner lead seal is arranged at the position of the inner partition plate through hole, the inner lead seal is in a circular ring shape, and the inner partition plate through hole is communicated with the bulb tube. The inner diameter of the inner lead seal is matched with the outer diameter of the bulb tube, the inner lead seal and the through hole of the inner partition plate are concentrically arranged, the inner lead seal is composed of a lead plate and a sleeve shell wrapping the lead plate, a connecting base is arranged on the sleeve shell, the inner lead seal is connected with the inner partition plate through a support, and the support is connected to the connecting base. The beneficial effects of the utility model are that by adopting the above technical scheme, the X-ray passing through the tail part of the bulb tube can be effectively reduced, the influence on the bulb tube tail part wire, the cooling water pipe and each component in the lead chamber at the bulb tube tail part can be reduced, and the stability and the service life of the irradiator can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an inner lead sealing structure of a lead chamber on an irradiator. Background Art

[0002] X-ray biological irradiator is an analytical instrument used in the fields of biology, basic medicine, and pharmacy. It is mainly used in cancer biology, human genome, induced gene changes, stem cells, small animal irradiation, cell culture and division inhibition research, research on TB cells and blood cells, bone marrow transplant irradiation, transplant immunity, immunosuppressive therapy, radiation sensitivity research, DNA damage research, food irradiation, microbial inactivation, plant and seed irradiation, etc.

[0003] The irradiator's lead chamber is where the irradiated objects are irradiated. The chamber is a square box structure enclosed by lead plates to prevent the X-rays from escaping. It houses a bulb, an inner baffle, irradiation cups, and a rotating mechanism for the cups. The bulb consists of a head and a tail, with the head of the bulb primarily emitting X-rays. The tail of the bulb is connected to electrical wiring, cooling water pipes, and other structures. A circular through-hole is located in the center of the inner baffle, which houses the rotating mechanism. This mechanism drives the multiple irradiation cups within the chamber to orbit around the bulb.

[0004] Prolonged exposure to X-rays can alter the performance of components such as the wires at the end of the tube, the cooling water pipes, and the motors in the rotating mechanism, affecting the overall performance and lifespan of the equipment. Reducing the effects of X-rays on these components within the lead chamber has long been a challenge for irradiators. Utility Model Content

[0005] The utility model aims to provide an inner lead sealing structure for a lead chamber of an irradiator, which can effectively reduce the influence of X-rays on various components in the lead chamber and improve the stability and service life of the irradiator.

[0006] The technical solution of the utility model is:

[0007] An inner lead seal structure for a lead chamber of an irradiator comprises a lead chamber, an inner partition being provided in the middle of the lead chamber, a circular inner partition through-hole being provided on the inner partition, a ball tube being provided in the lead chamber, the ball tube being concentrically arranged with the inner partition through-hole, an inner lead seal being provided at the inner partition through-hole, the inner lead seal being annular, the inner diameter of the inner lead seal being matched with the outer diameter of the ball tube, the inner lead seal being concentrically arranged with the inner partition through-hole, the inner lead seal being composed of a lead plate and a shell wrapping the lead plate, the shell being provided with a connecting seat, the inner lead seal being connected to the inner partition via a bracket, and the bracket being connected to the connecting seat.

[0008] The tube is fixed to the center of the inner baffle through-hole via a tube bracket. The diameter of the inner baffle through-hole is much larger than that of the tube, resulting in a relatively high radiation intensity at the tube. This utility model incorporates an annular inner lead seal at the point of contact between the tube and the inner baffle through-hole, isolating the tube's head from its tail. This effectively isolates X-rays from the tube's head and reduces their impact on components at the tube's tail.

[0009] The inner lead seal is heavy, and the soft lead plate is difficult to provide sufficient strength to fix the inner lead seal to the bracket. Therefore, the inner lead plate is wrapped with a steel shell, and a connecting seat is provided on the shell to fix the inner lead seal to the bracket.

[0010] Specifically, the inner lead seal and the bracket are connected by screws.

[0011] A cam plate is provided on one side of the inner partition, and the cam plate is arranged parallel to the inner partition. The two ends of the bracket are respectively connected to the cam plate and the connecting seat by screws, and the through holes at both ends of the bracket that match the screws are mutually perpendicular strip holes.

[0012] The cam plate and inner partition are fixedly connected. The inner seal is annular and requires precise positioning to ensure it fits concentrically on the tube. The perpendicular holes at each end of the bracket allow for horizontal and vertical adjustment of the seal, ensuring concentricity between the seal and the tube.

[0013] Preferably, the strip-shaped hole on the bracket that matches the cam plate is arranged in the vertical direction, and the strip-shaped hole on the bracket that matches the connecting seat is arranged in the horizontal direction.

[0014] The inner seal is heavy, so the vertical strip holes need to provide sufficient friction to withstand the weight of the inner seal. The connector on the housing has certain limitations in size and thickness. Screwing the screws into the threaded holes in the cam plate provides greater clamping force for the bracket, thereby generating sufficient friction.

[0015] Furthermore, a supporting plate is provided at the lower part of the cam plate, a threaded hole is provided on the supporting plate, a screw is provided in the threaded hole, and the tail of the screw is abutted against the lower end of the bracket.

[0016] The bracket can be supported by the support plate and the screws on the support plate, so that the inner lead seal can be fixed more stably in the vertical direction.

[0017] The bracket is Z-shaped.

[0018] The Z-shaped bracket allows the inner seal and the cam plate to be located in different planes, thereby providing a larger optional space for setting the position of the inner seal in the horizontal direction.

[0019] The advantages and positive effects of the utility model are as follows: due to the adoption of the above technical solution, the penetration of X-rays to the tail of the tube can be effectively reduced, the influence on the wires, cooling water pipes and various components in the lead chamber at the tail of the tube can be reduced, and the stability and service life of the irradiator can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structural principle inside the lead chamber

[0021] Figure 2 This is a schematic diagram of the structural principle of the inner lead plate bracket

[0022] Figure 3 This is a schematic diagram of the structural principle of the inner lead plate

[0023] Figure 4 This is the main view of the inner lead plate

[0024] Figure 5 yes Figure 4 Cross-sectional view at AA

[0025] In the picture:

[0026] 1. Inner partition 2. Ball tube 3. Inner lead seal

[0027] 4. Bracket 5. Cam plate 6. Support plate

[0028] 11. Inner partition through hole 31, lead plate 32, casing

[0029] 321, connector DETAILED DESCRIPTION

[0030] like Figure 1-5 As shown, the utility model:

[0031] An inner lead seal structure of an irradiator lead chamber includes a lead chamber, an inner partition 1 is provided in the middle of the lead chamber, a circular inner partition through hole 11 is provided on the inner partition, a ball tube 2 is provided in the lead chamber, the ball tube 2 is concentrically arranged with the inner partition through hole 11, an inner lead seal 3 is provided at the inner partition through hole 11, the inner lead seal 3 is annular, the inner diameter of the inner lead seal 3 matches the outer diameter of the ball tube 2, and the inner lead seal 3 is concentrically arranged with the inner partition through hole 11.

[0032] like Figure 3-5 As shown,

[0033] The inner lead seal 3 is composed of a lead plate 31 and a casing 32 that wraps the lead plate. A connecting seat 321 is provided on the casing. The inner lead seal is connected to the inner partition 1 through a bracket 4, and the bracket 4 is connected to the connecting seat 321.

[0034] A cam plate 5 is provided on one side of the inner partition 1, parallel to the inner partition 1. The ends of the bracket 4 are connected to the cam plate 5 and the connecting seat 321 via screws. The through holes at both ends of the bracket 4, which accommodate the screws, are perpendicular strip-shaped holes. The sleeve 32 is relatively thin, and a connecting seat 321 is provided on the sleeve 32. A threaded hole can be provided on the connecting seat 321 to facilitate the connection between the inner seal 3 and the bracket 4.

[0035] like Figure 2 As shown, there are three brackets, which are arranged in a herringbone shape. The strip holes on the bracket 4 that match the cam plate 5 are arranged in the vertical direction, and the strip holes on the bracket 4 that match the connecting seat 321 are arranged in the horizontal direction.

[0036] A supporting plate 6 is provided at the lower portion of the cam plate 5 . A threaded hole is provided on the supporting plate. A screw is provided in the threaded hole. The tail of the screw abuts against the lower end of the bracket 4 .

[0037] The bracket 4 is Z-shaped.

[0038] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. An inner lead seal structure for a lead chamber of an irradiator, comprising a lead chamber, an inner partition provided in the middle of the lead chamber, a circular inner partition through-hole provided on the inner partition, a bulb provided in the lead chamber, the bulb concentrically arranged with the inner partition through-hole, and characterized in that: An inner lead seal is provided at the through hole of the inner partition. The inner lead seal is in a circular ring shape. The inner diameter of the inner lead seal matches the outer diameter of the bulb. The inner lead seal is concentrically arranged with the through hole of the inner partition. The inner lead seal consists of a lead plate and a shell wrapping the lead plate. A connecting seat is provided on the shell. The inner lead seal is connected to the inner partition through a bracket, and the bracket is connected to the connecting seat.

2. The inner lead seal structure of the lead chamber of the irradiator according to claim 1, characterized in that: A cam plate is provided on one side of the inner partition, and the cam plate is arranged parallel to the inner partition. The two ends of the bracket are respectively connected to the cam plate and the connecting seat by screws, and the through holes at both ends of the bracket that match the screws are mutually perpendicular strip holes.

3. The inner lead seal structure of the lead chamber of the irradiator according to claim 2, characterized in that: The strip-shaped hole on the bracket that matches the cam plate is arranged along the vertical direction, and the strip-shaped hole on the bracket that matches the connecting seat is arranged along the horizontal direction.

4. The inner lead seal structure of the lead chamber of the irradiator according to claim 3, characterized in that: A supporting plate is provided at the lower part of the cam plate, a threaded hole is provided on the supporting plate, a screw is provided in the threaded hole, and the tail of the screw is against the lower end of the bracket.

5. The inner lead seal structure of the lead chamber of the irradiator according to any one of claims 2 to 4, characterized in that: The bracket is Z-shaped.

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