High-voltage ray source box

Abstract

The utility model discloses a high-voltage ray source box which comprises a draw-bar box, an elastic material and a bulb tube shell, the bulb tube shell comprises a bulb tube, an anode and a shell, and the bulb tube is provided with a center line; the interior of the shell comprises a base, a supporting plate, a bearing plate and a fixing structure. The fixing structure fixes the bulb tube on the bearing plate in the center line direction, so that the emergent window of the bulb tube is aligned with the target surface of the anode; the ball tube shell is located in the trolley case, and the elastic material is located between the outer contour of the ball tube shell and the inner wall of the trolley case so as to fix the ball tube shell. According to the utility model, the bulb tube can be kept in the vertical direction, and can be always kept in the vertical direction in the transportation, taking and placing processes, so that the relative deviation of the cathode and the anode of the bulb tube can be avoided, and the bulb tube can stably play a role when the CT machine is transported to a site.

Description

Technical Field

[0001] The utility model relates to a high-voltage ray source box, belonging to the technical field of medical equipment. Background Art

[0002] The working principle of a CT (Computed Tomography) machine can be summarized as follows: an X-ray tube (hereinafter referred to as the tube) is used as an X-ray source. The cathode of the tube generates an electron beam under the action of a high-voltage filament, and electrons are accelerated under a strong electric field. High-speed electrons hit the anode target surface of the tube to generate X-rays, and then use X-rays for scanning and imaging to achieve image diagnosis. Among them, the tube is a key device for generating X-rays in a CT machine. As a high-voltage ray source, it has a glass tube inside that is used to release rays. The release of rays requires the anode and cathode to be aligned, and the alignment accuracy requirement is very high.

[0003] like Figure 1 As shown in the figure, the traditional high-voltage radiation source box adopts a horizontal tube placement mode, in which gravity acts on the radial direction of the tube, and the tube is supported only at one end, which will cause uneven force on the tube and the position of the cathode in the tube will be tilted relative to the anode. What is more serious is that the bumps during transportation will aggravate this deviation. The cathode that has been deviated will emit less X-rays stimulated by electrons, which will affect the final tube quality, and then cause the scanning effect of the CT machine where the tube is located to be less than expected. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a high-voltage ray source box.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] A high-voltage ray source box, comprising a drawbar box, an elastic material and a bulb shell.

[0007] The ball tube shell comprises a ball tube, an anode and an outer shell, and the ball tube has a center line;

[0008] The interior of the housing includes a base, a support plate, a load-bearing plate and a fixing structure;

[0009] The fixing structure fixes the bulb to the bearing plate in the centerline direction so that the exit window of the bulb is aligned with the target surface of the anode;

[0010] The ball tube shell is located in the trolley case, and the elastic material is located between the outer contour of the ball tube shell and the inner wall of the trolley case to fix the ball tube shell.

[0011] Preferably, the base is arranged horizontally to provide support force to the support plate;

[0012] The support plate is vertically arranged and vertically connected to the base;

[0013] The load-bearing plate is perpendicular to the supporting plate and is arranged parallel to the base.

[0014] Preferably, the housing further comprises a plurality of positioning members.

[0015] The positioning pieces are symmetrically arranged on the inner wall of the shell and protrude inwardly to abut against the expanded glass tube wall of the bulb.

[0016] Preferably, the trolley case includes a case seat, a case cover, a plurality of pulleys and a handle;

[0017] The box cover is located above the box seat and is connected to the box seat in an openable and closable manner to allow the ball tube shell to be taken out or put in along a vertical direction.

[0018] Preferably, there are four pulleys, which are respectively located at four corners below the box seat.

[0019] Preferably, the elastic material conforms to the outer contour of the bulb shell.

[0020] Preferably, the elastic material is divided into at least two sections to be placed in the suitcase respectively.

[0021] Preferably, the case cover of the trolley case can be completely detached from the case seat to allow the ball tube housing to be placed into or taken out of the case seat in a vertical direction.

[0022] Preferably, the handle is located on one side or two opposite sides of the box seat and is not connected to the box cover so as not to interfere with the detachment of the box cover from the box seat.

[0023] Compared with the prior art, the utility model utilizes a tube shell, EVA foam and a trolley case with an upper opening to keep the tube in a vertical direction and ensure that it is always kept in this direction during transportation and placement, so that the gravity direction and the supporting force direction of the tube are both located on the center line of the tube, which will not cause relative displacement of the cathode and anode of the tube, thereby ensuring that the CT machine can function stably when transported to the site and ensuring the quality of CT scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a force diagram of the horizontal placement mode of the ball tube in the prior art;

[0025] Figure 2 This is a schematic diagram of the structure of the ball tube shell and the elastic material in the embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a trolley case in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The technical content of the present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The technical concept of the embodiment of the utility model is to use the tube shell, EVA foam and the upper opening trolley case to keep the tube in a vertical direction and ensure that it is always in this direction during transportation and placement. Therefore, the gravity direction and the support force direction of the tube are both located on the center line of the tube, which will not cause the relative deviation of the cathode and anode of the tube, thereby ensuring that the CT machine can function stably when transported to the site and avoiding adverse effects on the CT scanning quality.

[0029] Combination Figure 2 and Figure 3 The embodiment of the utility model provides a high-voltage radiation source box, which includes a pull rod box 100, a fixing elastic material (such as EVA foam) 200, and a tube shell 300. The tube shell 300 includes a tube 10, an anode 20 and a shell 30. The tube 10 is a conventional component, which has a center line (as shown by the dotted line in the figure).

[0030] The housing 30 is a box-shaped structure, and includes a support plate 31, a load-bearing plate 32, a fixing structure 33, a positioning member 34, and a base 35. The base 35 is horizontally arranged to provide support for the support plate 31. The support plate 31 is vertically arranged and vertically connected to the base 35, so that it can be supported by the base 35 and reliably fixed in the vertical direction.

[0031] The load-bearing plate 32 is perpendicular to the support plate 31, and is arranged parallel to the base 35, also in the horizontal direction. There is a spacing between the load-bearing plate 32 and the base 35, which is used as the installation space of the fixed structure 33. That is, the fixed structure 33 passes through the load-bearing plate from the bottom of the load-bearing plate 32 (between the load-bearing plate 32 and the base 35), and is detachably connected to the ball tube 10, so as to vertically fix the ball tube 10 to the load-bearing plate 32. Usually, the fixing structure 33 is a bolt, but other fixing methods, such as clamping, etc., can also be used, as long as the reliability of the connection is guaranteed. In short, the fixing structure fixes the ball tube to the load-bearing plate in the center line direction so that the exit window of the ball tube is aligned with the target surface of the anode.

[0032] The positioning member 34 is connected to the inner wall of the housing 30 and protrudes inward to abut against the expanded glass wall of the bulb 10 to provide a force toward the center line (dashed line in the figure) on the glass wall. Since there are multiple positioning members 34 and they are symmetrically arranged, symmetrical forces can be applied to the glass wall to ensure that the horizontal component of the full force of the multiple positioning members 34 applied to the bulb is 0 (that is, the bulb does not deviate in the horizontal direction).

[0033] The anode 20 is fixed on the support plate 31, and the target surface of the anode 20 is aligned with the exit window of the tube 10 to ensure that the electrons from the tube can bombard the target surface and stimulate X-rays. This is a conventional design and will not be described in detail here.

[0034] like Figure 2 As shown, when the ball tube shell 300 is located in the trolley case, an elastic material 200 is also provided on the outer periphery of the ball tube shell 300. The elastic material is usually EVA foam, but it can also be a filling material such as an inflatable column. The elastic material 200 is located between the inner wall of the trolley case 100 and the outer wall of the ball tube shell 300 to position the ball tube shell 300. The elastic material 200 is divided into a plurality of sections, at least two sections. First, the first section of the fixed base 35 is placed in the trolley case 100, and then the ball tube shell 300 is placed in a manner of maintaining a vertical direction, and finally the second section of the elastic material 200 is placed. The elastic material 200 is elastic and conforms to the outer contour of the ball tube shell 300, so the ball tube shell 300 can be reliably positioned to prevent the ball tube shell 300 from moving relative to the inside of the trolley case 100.

[0035] Since the combined weight of the tube and the tube shell is often about 40 kilograms, a convenient means of transportation is required to carry it. Moreover, the tube is preferably kept in a vertical direction during transportation to avoid relative deviation. Therefore, a trolley case 100 is used in the embodiment of the utility model. The appearance of the trolley case 100 is similar to that of an ordinary trolley case, so that people can drag and move it easily. However, the opening direction of the trolley case 100 in the embodiment of the utility model is upward. Figure 3 As shown, the suitcase 100 includes a box base 101 , a box cover 102 , a plurality of pulleys 103 and a handle 104 .

[0036] The box seat 101 is a box body with an upper opening, and the box cover 102 is connected to the top of the box seat 101 in an openable manner. Four pulleys 103 are respectively connected to the four corners below the box seat 101 so that the box seat 101 can slide. The internal space enclosed by the box seat 101 and the box cover 102 is used to accommodate the elastic material 200 and the ball tube shell 300 to fix the ball tube in the vertical direction. The bottom of the box seat 101 is horizontally arranged to keep the base 35 of the ball tube shell 300 still horizontal inside the box seat 101; the support plate 31 still remains vertical. Just because the box cover 102 opens and closes above the box seat 101, when taking and placing the ball tube shell 300, the ball tube shell 300 can be kept in the vertical direction, taken out vertically upward from the box seat 101 or placed vertically downward into the box seat 101. The design of the four pulleys 103 is also to ensure that the box seat 101 remains horizontally placed and slides.

[0037] In one embodiment of the present invention, the pull rod 104 is arranged on one side of the box seat 101, which is consistent with the design of a conventional trolley case to meet existing practices. Preferably, the pull rod 104 is arranged on both sides of the box seat 101, so that when the trolley case 100 is pulled, the box seat 101 can be ensured to be evenly stressed and move forward in a straight line, without causing the box seat 101 to tilt due to unilateral stress. It should be noted that the pull rod 104 is not connected to the box cover 102, so that the box cover 102 can be removed from the box seat 101 or placed on top of the box seat.

[0038] In summary, the high-voltage radiation source box provided by the embodiment of the utility model is designed to keep the tube in a vertical direction during transportation, thereby avoiding product quality problems caused by relative displacement of the cathode and anode of the tube. Compared with the prior art, the relative displacement of the cathode and anode caused by uneven force during transportation is avoided, thereby improving the accuracy of CT scanning.

[0039] It should be noted that the above-mentioned multiple embodiments are only examples, and the technical solutions of the various embodiments can be combined, all of which are within the protection scope of the present utility model.

[0040] In addition, the terms "upper", "lower", "horizontal", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0041] The high-voltage radiation source box provided by the utility model is described in detail above. For those skilled in the art, any obvious changes made to the utility model without departing from the essence of the utility model will constitute an infringement of the patent right of the utility model and will bear corresponding legal responsibilities.

Claims

1. A high voltage radiation source box, characterized in that It includes a trolley case, an elastic material and a ball tube shell; wherein, The ball tube shell comprises a ball tube, an anode and an outer shell, and the ball tube has a center line; The interior of the housing includes a base, a support plate, a load-bearing plate and a fixing structure; The fixing structure fixes the bulb to the bearing plate in the centerline direction so that the exit window of the bulb is aligned with the target surface of the anode; The ball tube shell is located in the trolley case, and the elastic material is located between the outer contour of the ball tube shell and the inner wall of the trolley case to fix the ball tube shell.

2. The high voltage radiation source box according to claim 1, characterized in that: The base is arranged horizontally to provide support force to the support plate; The support plate is vertically arranged and vertically connected to the base; The load-bearing plate is perpendicular to the supporting plate and is arranged parallel to the base.

3. The high voltage radiation source box according to claim 2, characterized in that: The housing further comprises a plurality of positioning members, The positioning pieces are symmetrically arranged on the inner wall of the shell and protrude inwardly to abut against the expanded glass tube wall of the bulb.

4. The high voltage radiation source box according to claim 3, characterized in that: The trolley case comprises a case seat, a case cover, a plurality of pulleys and a handle; The box cover is located above the box seat and is connected to the box seat in an openable and closable manner to allow the ball tube shell to be taken out or put in along a vertical direction.

5. The high voltage radiation source box according to claim 4, characterized in that: There are four pulleys, which are respectively located at four corners below the box seat.

6. The high voltage radiation source box according to claim 5, characterized in that: The elastic material conforms to the outer contour of the bulb shell.

7. The high voltage radiation source box according to claim 6, characterized in that: The elastic material is divided into at least two sections, so as to be placed in the suitcase respectively.

8. The high voltage radiation source box according to claim 6, characterized in that: The case cover of the trolley case can be completely detached from the case seat to allow the ball tube housing to be placed into or taken out of the case seat in a vertical direction.

9. The high voltage radiation source box according to claim 6, characterized in that: The handle is located on one side or two opposite sides of the box seat and is not connected to the box cover so as not to interfere with the box cover being separated from the box seat.

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