Manual source closing mechanism

Abstract

The utility model relates to a manual source closing mechanism which comprises a roller and a machine frame, the roller is arranged on the machine frame, and the manual source closing mechanism further comprises a manual source closing mechanism transmission shaft, a transition gear, a source closing motor and a source switch body. The manual source closing mechanism transmission shaft is arranged on the roller, the transition gear is arranged on the manual source closing mechanism transmission shaft, the transition gear is meshed with the source closing motor and the source switch body, and the source closing motor and the source switch body are both arranged on the roller. According to the utility model, the radioactive source can be rapidly closed in case of emergency.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a manual power-off mechanism. Background Art

[0002] The gamma knife is a large-scale radiotherapy device integrating stereotactic technology and radiosurgery technology, mainly used for treating craniocerebral diseases. Its treatment principle is similar to the focusing process of a magnifying glass. The radiation beam is cross-overlapped through a collimator so that a high dose is obtained in the lesion area. The safe utilization of the radiation source is very important here. Once power is cut off, the mechanical structure will lose power, resulting in the inability to turn off the source of the device, bringing serious consequences.

[0003] Therefore, once an emergency power failure occurs or the power-off cannot be achieved due to the inoperative electronic control system, manual power-off is required. Summary of the Utility Model

[0004] To solve the above technical problems in the background art, the utility model provides a gamma knife emergency manual power-off mechanism, aiming to quickly turn off the radiation source in case of an emergency.

[0005] The technical solution of the utility model is as follows: The utility model is a manual power-off mechanism, including a drum and a frame. The drum is arranged on the frame. The special feature is that: the manual power-off mechanism further includes a manual power-off mechanism transmission shaft, an intermediate gear, a power-off motor and a source switch body; the manual power-off mechanism transmission shaft is arranged on the drum, the intermediate gear is arranged on the manual power-off mechanism transmission shaft, and the intermediate gear meshes with the power-off motor and the source switch body respectively. The power-off motor and the source switch body are both arranged on the drum.

[0006] Further, the manual power-off mechanism further includes a manual drum mechanism. The manual drum mechanism includes a hand-operated gear and an intermediate gear. A drum gear is arranged outside the drum. The hand-operated gear and the intermediate gear are both arranged at the lower part of the frame. The hand-operated gear meshes with the intermediate gear, and the intermediate gear meshes with the drum gear.

[0007] Further, the manual drum mechanism further includes a brake. The brake is arranged at the lower part of the frame and meshes with the intermediate gear.

[0008] Further, the manual power-off mechanism further includes a special wrench, and the special wrench is connected to the manual power-off mechanism transmission shaft.

[0009] The manual power-off mechanism provided by the utility model for power failure of radiotherapy equipment, failure of the electronic control system and failure of the emergency system aims to ensure that the radiation source can be kept in the power-off state under special circumstances. The transmission mechanism therein is not limited to gears and can also be structures such as chains and belts. Description of the Drawings

[0010] Figure 1It is a schematic structural diagram of the present utility model;

[0011] Figure 2 It is a rear view schematic diagram of the present utility model;

[0012] Figure 3 It is a schematic structural diagram of the manual drum mechanism of the present utility model;

[0013] Figure 4 It is a rear view schematic diagram of the manual drum mechanism of the present utility model;

[0014] Figure 5 It is a schematic diagram of the operation position of the present utility model;

[0015] Figure 6 It is an application schematic of the present utility model Figure 1 ;

[0016] Figure 7 It is an application schematic of the present utility model Figure 2 ;

[0017] The description of the reference numerals in the drawings is as follows:

[0018] 1. Manual source cut-off mechanism, 2. Manual drum mechanism; 3. Drum; 4. Frame; 5. Operation position;

[0019] 1.1. Transmission shaft of the manual source cut-off mechanism; 1.2. Intermediate gear; 1.3. Source cut-off motor; 1.4. Source switch body; 1.5. Radiation source; 1.6. Special wrench;

[0020] 1.4.1. Collimator; 1.4.2. Shielding plug;

[0021] 2.1. Hand-operated gear; 2.2. Drum intermediate gear; 2.3. Brake; 2.4. Drum gear. Specific embodiments

[0022] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] Refer to Figure 1 , 2 , the structure of the specific embodiment of the present utility model includes a manual source cut-off mechanism 1, a drum 3 and a frame. The drum 3 is arranged on the frame. The manual source cut-off mechanism 1 includes a transmission shaft 1.1 of the manual source cut-off mechanism, an intermediate gear 1.2, a source cut-off motor 1.3, a source switch body 1.4 and a special wrench. The transmission shaft 1.1 of the manual source cut-off mechanism is arranged on the drum 3. The intermediate gear 1.2 is arranged on the transmission shaft 1.1 of the manual source cut-off mechanism. The intermediate gear 1.2 meshes with the source cut-off motor 1.3 and the source switch body 1.4 respectively. The source cut-off motor 1.3 and the source switch body 1.4 are both arranged on the drum 3. The special wrench is connected to the transmission shaft 1.1 of the manual source cut-off mechanism.

[0024] See Figure 3 and 4 The structure of the specific embodiment of the present utility model further includes a manual roller mechanism 2, and the manual roller mechanism 2 includes a hand-cranked gear 2.1, a roller idler gear 2.2 and a brake 2.3. A roller gear 2.4 is arranged outside the roller 2. The hand-cranked gear 2.1, the roller idler gear 2.2 and the brake 2.3 are all arranged at the lower part of the frame 4. The hand-cranked gear 2.1 meshes with the roller idler gear 2.2 and the brake 2.3 respectively, and the roller idler gear 2.2 meshes with the roller gear 2.4.

[0025] When turning off the power source, it is necessary to rotate the roller 3 through the manual roller mechanism 2 and turn the manual power-off mechanism 1 to the operating position.

[0026] See Figures 5 to 7 The radiation source 1.5, the source switch body 1.4, and the manual power-off mechanism 1 are all arranged on the roller 3. The radiation source 1.5 is installed on the frame 4, and the source switch body 1.4 and the idler gear 1.2 are rotatable on the frame 4.

[0027] The source switch body 1.4 is a conventional structure, which is the switch for turning on and off the source. It has four collimators 1.4.1 and a shielding plug 1.4.2. When turning off the source, rotating the source switch body 1.4 can achieve turning on and off the source.

[0028] The usage process of the present utility model is as follows:

[0029] Once the electric control power-off system fails, turn off the main power switch. Two staff members enter the treatment room. One person cooperates with the patient to leave the treatment room, and the other person performs manual power-off.

[0030] Remove the outer shell cover plate at the lower right rear of the host to expose the hand-cranked gear 2.1, the roller idler gear 2.2 and the brake 2.3.

[0031] Remove the outer shell square cover plate above the upper right side of the host to expose the operating position 5 (as Figure 6 shown).

[0032] Rotate the square handle on the clutch counterclockwise to disengage the clutch from the drive motor, and then manual operation can be performed.

[0033] Pull up the handle of the brake 2.3 and use the brake release strut to hold it up to keep the brake 2.3 in the released state. Use a special wrench to hold the hand-cranked gear 2.1 and rotate it to rotate the roller 3 through the idler gear 2.2. Continue to rotate the roller 3 to make the manual power-off mechanism 1 reach the operating position 5.

[0034] When closing the source, use a special wrench 1.6 to rotate the transmission shaft 1.1 of the manual source closing mechanism. The transmission shaft 1.1 of the manual source closing mechanism drives the intermediate gear 1.2 to rotate, and the intermediate gear 1.2 drives the source switch body 1.4 to rotate. The source switch body 1.4 below the radiation source 1.5 will rotate from the collimator 1.4.1 to the shielding plug 1.4.2 part to shield the radiation source 1.5, so as to achieve the purpose of closing the source.

[0035] The technical content not specifically described in the content of the present utility model and the above embodiments is the same as the prior art.

[0036] The above is only the specific implementation manner disclosed by the present utility model, but the protection scope disclosed by the present utility model is not limited thereto. The protection scope disclosed by the present utility model shall be subject to the protection scope of the claims.

Claims

1. A manual power-off mechanism, comprising a roller and a frame, wherein the roller is arranged on the frame, and characterized in that: The manual source closing mechanism also includes a manual source closing mechanism transmission shaft, a transition gear, a source closing motor and a source switch body; the manual source closing mechanism transmission shaft is arranged on the drum, the transition gear is arranged on the manual source closing mechanism transmission shaft, the transition gear is respectively engaged with the source closing motor and the source switch body, and the source closing motor and the source switch body are both arranged on the drum.

2. The manual power-off mechanism according to claim 1, characterized in that: The manual source closing mechanism also includes a manual roller mechanism, which includes a hand-cranked gear and a roller transition gear. A roller gear is arranged on the outside of the roller. The hand-cranked gear and the roller transition gear are both arranged at the lower part of the frame. The hand-cranked gear is meshed with the roller transition gear, and the roller transition gear is meshed with the roller gear.

3. The manual power-off mechanism according to claim 2, characterized in that: The manual roller mechanism also includes a brake, which is arranged at the lower part of the frame and meshes with the transition gear.

4. The manual power-off mechanism according to any one of claims 1 to 3, characterized in that: The manual source closing mechanism also includes a special wrench, and the special wrench is connected to the transmission shaft of the manual source closing mechanism.

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