Sample fixing device for CT scanning

Abstract

The utility model discloses a sample fixing device for CT (Computed Tomography) scanning, which comprises a fixing block, a bolt is sleeved in the fixing block, a placing plate is fixedly arranged on the top surface of the fixing block, a clamping component forms one part, during CT scanning, the placing plate is arranged at a position needing to be scanned so as to carry out scanning work, and during CT scanning, a sample needs to be clamped so as to clamp the sample. A sample is placed on the top surface of a placing plate, a screw is rotated, the outer wall of a sleeve block is hinged to a connecting plate, the end, away from the sleeve block, of the connecting plate is hinged to a limiting block, the limiting block and a limiting groove formed in the outer wall of the placing plate are arranged in a sliding mode, and under limitation of the limiting block, the rotating screw can drive the sleeve block to move downwards; the connecting plate pulls the limiting block to slide in the limiting groove, and the vertical plate rotatably arranged at the top of the limiting block is in a gathering movement trend, so that the sliding rod slidably arranged in the vertical plate moves along with the vertical plate, the clamping plate fixedly mounted at the end part of the sliding rod is in contact with the outer wall of the sample, and the outer wall of the sample is clamped by the clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of sample fixing, in particular to a sample fixing device for CT scanning. Background Art

[0002] CT scan, the full name of which is computer tomography, is a medical imaging technology that uses X-rays to penetrate the human body and are received by detectors, then processed by computers to reconstruct images of the human body's internal structures. CT scans can provide more detailed images of tissues, bones, and blood vessels than traditional X-rays, helping doctors to have a more comprehensive understanding of the patient's physical condition. During CT scans, the sample needs to be fixed.

[0003] When scanning a sample conventionally, the sample is merely placed on a scanning platform without being clamped, resulting in the sample being unable to maintain stability during scanning.

[0004] Therefore, we propose a sample fixing device for CT scanning that can stably clamp and place the sample, improve the stability of the sample during scanning, and make the CT scanning work safer. Utility Model Content

[0005] The purpose of the utility model is to provide a sample fixing device for CT scanning to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample fixing device for CT scanning, comprising a fixing block, a bolt is sleeved inside the fixing block, a placement plate is fixedly installed on the top surface of the fixing block, and a processing component movably connected to the placement plate, the processing component comprises a clamping component movably connected to the placement plate, and an adjustment component is slidably arranged inside the clamping component.

[0007] Preferably, the clamping assembly includes a screw rod rotatably connected to the bottom of the placement plate, the outer wall of the screw rod is sleeved with a sleeve block, the outer wall of the sleeve block is hingedly connected to a connecting plate, the end of the connecting plate away from the sleeve block is hingedly connected to a limiting block, the top of the limiting block is rotatably connected to a vertical plate, a sliding rod is slidably arranged inside the vertical plate, the outer wall of the sliding rod is sleeved with a first spring, a clamping plate is fixedly installed on the end of the sliding rod, a damper is fixedly installed on the outer wall of the clamping plate, and a limiting groove is provided on the top surface of the placement plate.

[0008] Preferably, the adjustment assembly includes a clamping sleeve fixedly mounted on the top surface of the limit block, a clamping block is slidably arranged inside the clamping sleeve, a pull ring is fixedly mounted on the top surface of the clamping block, a sliding block is fixedly mounted on the inner wall of the clamping block, a connecting column is slidably arranged on the outer wall of the sliding block, a sliding groove is opened on the outer wall of the connecting column, and a second spring is sleeved on the outer wall of the connecting column.

[0009] Preferably, the clamping plate is made of rubber, and one end of the damper away from the clamping plate is fixedly mounted to the outer wall of the vertical plate. Under the restriction of the clamping plate made of rubber, the friction coefficient between the clamping plate and the sample can be increased, and under the restriction of the damper, the sample can be clamped more stably.

[0010] Preferably, the outer wall of the limit block is slidably arranged with the limit groove opened on the top surface of the placing plate, and the sleeve block is threadedly sleeved with the outer wall of the screw. Under the restriction of the sleeve block, when the screw rotates, the sleeve block can be driven to move upward, and under the restriction of the connecting plate hingedly connected to its outer wall, the limit block can be pushed to slide inside the limit groove to release the clamped sample.

[0011] Preferably, the end of the connecting column close to the sleeve is rotatably connected to the top surface of the limit block, and the end of the connecting column away from the limit block is fixedly installed on the bottom of the vertical plate. Under its restriction, when the block and the sleeve are no longer engaged, the connecting column can be rotated to adjust the clamping surface of the clamping plate.

[0012] Preferably, the slider fixedly mounted on the inner wall of the block is slidably arranged with the slide groove opened on the outer wall of the connecting column, and one end of the second spring is fixedly mounted on the top surface of the block. Under its restriction, when the pull ring is pulled, the block and the sleeve are no longer engaged. At this time, the connecting column is rotated, and the block can follow the rotation under the restriction of the sliding of the slider and the slide groove. When the adjustment is completed, the pull ring is released to engage the block and the sleeve, thereby limiting the adjusted clamping plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The sample fixing device for CT scanning is composed of a clamping assembly as one component. When CT scanning is performed, the placement plate is installed at the desired scanning position to perform scanning. When CT scanning is performed, the sample needs to be clamped and placed on the top surface of the placement plate. The screw is rotated. Since the outer wall of the sleeve block is hingedly connected to the connecting plate, and the end of the connecting plate away from the sleeve block is hingedly connected to the limit block, and the limit block is slidably arranged with the limit groove opened on the outer wall of the placement plate, under its restriction, the rotating screw can drive the sleeve block to move downward, and the connecting plate pulls the limit block to slide inside the limit groove, and the vertical plate set on the top of the limit block rotates accordingly. The movement trend is to converge, so that the sliding rod slidingly arranged inside the vertical plate moves accordingly, so that the clamping plate fixedly installed at the end of the sliding rod contacts the outer wall of the sample, and the clamping plate clamps the outer wall of the sample. Due to the different shapes of the samples, the clamping plate can fit the outer wall of the sample under the restriction of the sliding of the sliding rod, so that the first spring sleeved on the outer wall of the sliding rod is compressed, so that the clamping plate can clamp samples of different shapes. When the first spring applies pressure to the clamping plate to clamp the sample, the first spring will generate shaking force, which needs to be processed at this time, and can be offset by a damper to ensure the stability of the sample clamping.

[0015] 2. The sample fixing device for CT scanning is composed of an adjustment component as one of its parts. When the sample has different shapes, the clamping plate needs to be clamped to the sample as closely as possible, and the clamping plate needs to be rotated. At this time, the pull ring is pulled to drive the clamping block to slide from the inside of the clamping sleeve, and the clamping block compresses the second spring. At this time, the connecting column is rotated. Since one end of the connecting column is rotatably connected to the top surface of the limit block, and the other end is fixedly installed to the bottom of the vertical plate, under its restriction, the vertical plate can drive the clamping plate to rotate, so that the clamping plate and the sample obtain the maximum clamping area to ensure the stability of the clamping. After adjusting the outer wall, the clamping block is released to engage the clamping block with the clamping sleeve, so that the sample can be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of the structure of the utility model.

[0017] Figure 2 It is a three-dimensional exploded diagram of the structure of the utility model.

[0018] Figure 3 This is a diagram of the structural clamping assembly of the utility model.

[0019] Figure 4 It is an exploded schematic diagram of the structural clamping assembly of the utility model.

[0020] Figure 5 This is a diagram of the structural adjustment components of the utility model.

[0021] Figure 6 This is an exploded schematic diagram of the structural adjustment component of the utility model.

[0022] In the figure: 1. fixing block; 2. bolt; 3. placement plate; 4. processing assembly; 41. clamping assembly; 42. adjusting assembly; 411. screw; 412. sleeve block; 413. connecting plate; 414. limiting block; 415. vertical plate; 416. sliding rod; 417. first spring; 418. clamping plate; 419. damper; 4111. limiting groove; 421. clamping sleeve; 422. clamping block; 423. pull ring; 424. second spring; 425. sliding block; 426. connecting column; 427. sliding groove. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] Example 1

[0025] A preferred embodiment of a sample fixing device for CT scanning provided by the utility model is as follows Figures 1 to 6 As shown: a sample fixing device for CT scanning, comprising a fixing block 1;

[0026] The fixing block 1 is sleeved with bolts 2;

[0027] A placement plate 3 is fixedly mounted on the top surface of the fixing block 1;

[0028] And a processing component (4) movably connected to the placement plate (3), characterized in that: the processing component (4) includes a clamping component (41) movably connected to the placement plate (3), the clamping component 41 includes a screw rod 411 rotatably connected to the bottom of the placement plate 3, the outer wall of the screw rod 411 is sleeved with a sleeve block 412, the outer wall of the sleeve block 412 is hingedly connected with a connecting plate 413, the end of the connecting plate 413 away from the sleeve block 412 is hingedly connected to a limiting block 414, the top of the limiting block 414 is rotatably connected with a vertical plate 415, a sliding rod 416 is slidably arranged inside the vertical plate 415, the outer wall of the sliding rod 416 is sleeved with a first spring 417, the end of the sliding rod 416 is fixedly installed with a clamping plate 418, the outer wall of the clamping plate 418 is fixedly installed with a damper 419, and a limiting groove 4111 is provided on the top surface of the placement plate 3.

[0029] In this embodiment, when CT scanning is performed, the placement plate 3 is installed at the desired scanning position to perform the scanning work. When CT scanning is performed, the sample needs to be clamped and placed on the top surface of the placement plate 3. The screw 411 is rotated. Since the outer wall of the sleeve block 412 is hingedly connected to the connecting plate 413, and the end of the connecting plate 413 away from the sleeve block 412 is hingedly connected to the limit block 414, and the limit block 414 is slidably arranged with the limit groove 4111 opened on the outer wall of the placement plate 3, under its restriction, the rotating screw 411 can drive the sleeve block 412 to move downward, and the connecting plate 413 pulls the limit block 414 to slide inside the limit groove 4111, and the vertical plate 415 rotatably arranged on the top of the limit block 414 tends to move together. The sliding bar 416 slidingly arranged inside the vertical plate 415 moves accordingly, so that the clamping plate 418 fixedly installed at the end of the sliding bar 416 contacts the outer wall of the sample, and the clamping plate 418 clamps the outer wall of the sample. Due to the different shapes of the samples, the clamping plate 418 can fit with the outer wall of the sample under the restriction of the sliding of the sliding bar 416, so that the first spring 417 sleeved on the outer wall of the sliding bar 416 is compressed, so that the clamping plate 418 can clamp samples of different shapes. When the first spring 417 applies pressure to the clamping plate 418 to clamp the sample, the first spring 417 will generate shaking force, which needs to be processed at this time, and can be offset by the damper 419 to ensure the stability of the sample clamping.

[0030] Furthermore, the clamping plate 418 is made of rubber, and one end of the damper 419 away from the clamping plate 418 is fixedly installed on the outer wall of the vertical plate 415. Under the restriction of the clamping plate 418 made of rubber, the friction coefficient between it and the sample can be increased, and under the restriction of the damper 419, the sample can be clamped more stably.

[0031] Furthermore, the outer wall of the limit block 414 is slidably arranged with the limit groove 4111 opened on the top surface of the placement plate 3, and the sleeve block 412 is threadedly sleeved with the outer wall of the screw 411. Under its restriction, when the screw 411 rotates, the sleeve block 412 can be driven to move upward. Under the restriction of the connecting plate 413 hingedly connected to its outer wall, the limit block 414 can be pushed to slide inside the limit groove 4111 to release the clamped sample.

[0032] Example 2

[0033] Based on Example 1, a preferred embodiment of a sample fixing device for CT scanning provided by the utility model is as follows: Figures 1 to 6 As shown: the adjustment component 42 includes a clamping sleeve 421 fixedly installed on the top surface of the limit block 414, a clamping block 422 is slidably arranged inside the clamping sleeve 421, a pull ring 423 is fixedly installed on the top surface of the clamping block 422, a slider 425 is fixedly installed on the inner wall of the clamping block 422, a connecting column 426 is slidably arranged on the outer wall of the slider 425, a sliding groove 427 is opened on the outer wall of the connecting column 426, and a second spring 424 is sleeved on the outer wall of the connecting column 426.

[0034] In this embodiment, when the samples have different shapes, the clamping plate 418 needs to be clamped to the maximum extent, and the clamping plate 418 needs to be rotated. At this time, the pull ring 423 is pulled to drive the block 422 to slide from the inside of the sleeve 421. The block 422 compresses the second spring 424. At this time, the connecting column 426 is rotated. Since one end of the connecting column 426 is rotatably connected to the top surface of the limit block 414, and the other end is fixedly installed at the bottom of the vertical plate 415, under its restriction, the vertical plate 415 can drive the clamping plate 418 to rotate, so that the clamping plate 418 and the sample obtain the maximum clamping area to ensure the stability of the clamping. After adjusting the outer wall, the block 422 is released to engage the block 422 with the sleeve 421, so that the sample can be clamped.

[0035] Furthermore, one end of the connecting column 426 close to the sleeve 421 is rotatably connected to the top surface of the limit block 414, and the other end of the connecting column 426 away from the limit block 414 is fixedly installed on the bottom of the vertical plate 415. Under its restriction, when the block 422 and the sleeve 421 are no longer engaged, the connecting column 426 can be rotated to adjust the clamping surface of the clamping plate 418.

[0036] In addition, a slider 425 fixedly installed on the inner wall of the block 422 is slidably arranged with a slide groove 427 opened on the outer wall of the connecting column 426, and one end of the second spring 424 is fixedly installed on the top surface of the block 422. Under its restriction, when the pull ring 423 is pulled, the block 422 and the sleeve 421 are no longer engaged. At this time, the connecting column 426 is rotated, and under the restriction of the sliding of the slider 425 and the slide groove 427, the block 422 can follow the rotation. When the adjustment is completed, the pull ring 423 is released to engage the block 422 with the sleeve 421, thereby limiting the adjusted clamping plate 418.

[0037] The above is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A sample fixing device for CT scanning, comprising a fixing block (1); The fixing block (1) is sleeved with a bolt (2); A placement plate (3) is fixedly mounted on the top surface of the fixed block (1); and a processing assembly (4) movably connected to the placement plate (3), characterized in that: The processing assembly (4) comprises a clamping assembly (41) movably connected to the placement plate (3), and an adjusting assembly (42) is slidably arranged inside the clamping assembly (41).

2. A sample fixing device for CT scanning according to claim 1, characterized in that: The clamping assembly (41) comprises a screw rod (411) rotatably connected to the bottom of the placement plate (3); a sleeve block (412) is sleeved on the outer wall of the screw rod (411); a connecting plate (413) is hingedly connected to the outer wall of the sleeve block (412); an end of the connecting plate (413) away from the sleeve block (412) is hingedly connected to a limit block (414); a vertical plate (415) is rotatably connected to the top of the limit block (414); a sliding rod (416) is slidably arranged inside the vertical plate (415); a first spring (417) is sleeved on the outer wall of the sliding rod (416); a clamping plate (418) is fixedly installed at the end of the sliding rod (416); a damper (419) is fixedly installed on the outer wall of the clamping plate (418); and a limit groove (4111) is provided on the top surface of the placement plate (3).

3. The sample fixing device for CT scanning according to claim 1, characterized in that: The adjustment component (42) includes a clamping sleeve (421) fixedly mounted on the top surface of the limit block (414), a clamping block (422) is slidably mounted inside the clamping sleeve (421), a pull ring (423) is fixedly mounted on the top surface of the clamping block (422), a slider (425) is fixedly mounted on the inner wall of the clamping block (422), a connecting column (426) is slidably mounted on the outer wall of the slider (425), a sliding groove (427) is formed on the outer wall of the connecting column (426), and a second spring (424) is sleeved on the outer wall of the connecting column (426).

4. The sample fixing device for CT scanning according to claim 2, characterized in that: The clamping plate (418) is made of rubber, and one end of the damper (419) away from the clamping plate (418) is fixedly mounted on the outer wall of the vertical plate (415).

5. The sample fixing device for CT scanning according to claim 2, characterized in that: The outer wall of the limiting block (414) is slidably arranged with a limiting groove (4111) provided on the top surface of the placement plate (3), and the sleeve block (412) is threadedly sleeved with the outer wall of the screw rod (411).

6. The sample fixing device for CT scanning according to claim 3, characterized in that: One end of the connecting column (426) close to the clamping sleeve (421) is rotatably connected to the top surface of the limit block (414), and one end of the connecting column (426) away from the limit block (414) is fixedly installed to the bottom of the vertical plate (415).

7. The sample fixing device for CT scanning according to claim 3, characterized in that: The sliding block (425) fixedly mounted on the inner wall of the clamping block (422) is slidably arranged with a sliding groove (427) provided on the outer wall of the connecting column (426), and one end of the second spring (424) is fixedly mounted on the top surface of the clamping block (422).

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