Laser lamp adjusting device and CT machine
By designing a laser lamp adjustment device including multiple adjustment seats, the problems of limited freedom and high cost of the existing CT machine laser lamp adjustment device are solved, and high-precision laser lamp positioning and simplified adjustment process are realized.
Patent Information
- Application Number
- CN202421192852.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing CT machine laser lamp adjustment device has limited freedom and complex structure, which leads to high cost and difficult to maintain positioning accuracy.
A laser lamp adjustment device including a first adjustment seat, a second adjustment seat and a third adjustment seat is designed, and precise adjustment of the laser lamp is achieved through the rotation and translation of these adjustment seats. The device uses multiple sheet metal parts, which is compact in structure, simplifies the adjustment mechanism and reduces costs.
Simple and reliable laser lamp adjustment in three degrees of freedom ensures maintenance of positioning accuracy and maintains high accuracy even after multiple installations and disassemblies.
Smart Images
Figure CN222777322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a laser lamp adjusting device for a CT machine. Background Art
[0002] Laser light is an important electrical component of CT system and is widely used as a reference for patient positioning. When assembling a CT system in a hospital, the position accuracy of the examination table is very important for scanning. Therefore, during installation, a calibration laser line that indicates the center of the scanning plane along the moving direction of the examination table is very helpful, especially for examination tables used for radiotherapy.
[0003] In addition, the laser line is used as a reference during routine system performance checks using the phantom.
[0004] In order to center the laser line with greater accuracy as an indication of the ISO center, a mechanism is needed to support the laser light on the frame and adjust the laser line in several directions.
[0005] There are already some adjustment solutions in the industry with limited degrees of freedom, complex structures, often requiring a lot of machining, and therefore high costs. Utility Model Content
[0006] In view of this, the utility model proposes a laser lamp adjustment device and a CT machine.
[0007] According to the first aspect of the utility model, a laser lamp adjustment device is provided, comprising: a first adjustment seat, which is used to accommodate the laser lamp; a second adjustment seat, the first adjustment seat is fixed to the second adjustment seat and can rotate relative to the second adjustment seat around the longitudinal direction of the laser lamp; a third adjustment seat, the second adjustment seat is pivotally fixed to the third adjustment seat; and a base plate, the third adjustment seat can be translationally fixed to the base plate.
[0008] In one embodiment, the first adjustment seat includes a laser seat and a sleeve, the sleeve has an external hexagonal head, an external cylindrical surface and a mounting hole for accommodating the laser lamp, the laser seat has an internal cylindrical surface, a flange, a first through hole, a first threaded hole and a set screw, the external cylindrical surface of the sleeve is tightly matched with the internal cylindrical surface of the laser seat, and the first threaded hole passes through the internal cylindrical surface and is threadedly matched with the set screw.
[0009] In one embodiment, the second adjustment seat includes a first end face, a first bolt, a first nut, a turntable, and a fourth end face; the first end face has a third threaded hole threadedly matched with the first bolt, and the first nut is threadedly matched with the first bolt; the turntable has a third through hole and a rivet, the rivet is penetrated through the third through hole and pivotally fixes the second adjustment seat to the third adjustment seat, and the first nut and the first bolt are used to connect the second adjustment seat and the third adjustment seat; adjusting the depth of the first bolt screwed into the third threaded hole can change the angle of the second adjustment seat relative to the third adjustment seat; the fourth end face has a second through hole for accommodating the flange of the laser seat and a second threaded hole corresponding to the first through hole of the laser seat.
[0010] In one embodiment, the second adjustment seat includes a second nut threadably matched with the first bolt.
[0011] In one embodiment, the third adjustment seat includes a seventh through hole, a pair of fourth through holes, a second bolt, a third nut, a pair of third threaded holes, and a pair of guide pins; the rivet is passed through the seventh through hole; and the first bolt is passed through the fourth through hole.
[0012] In one embodiment, the third adjustment seat includes a gasket located between the third through hole and the seventh through hole.
[0013] In one embodiment, the base plate includes a third end face, a wide groove, a pair of first grooves, and a pair of second grooves; the third end face has a fourth threaded hole that cooperates with the second bolt thread; the wide groove is used to accommodate the second adjustment seat and the third adjustment seat; the first groove is used to connect the base plate and the third adjustment seat, and the guide pin of the third adjustment seat can slide in the second groove.
[0014] In one embodiment, the bottom plate includes a storage hole for binding cables.
[0015] In one embodiment, the bottom plate includes a fifth through hole and a sixth through hole, and the fifth through hole and the sixth through hole are used to fix the laser light adjustment device to the turntable of the CT machine.
[0016] In one embodiment, the fifth through hole is elongated.
[0017] According to a second aspect of the utility model, a CT machine is provided, comprising a turntable, wherein the CT machine further comprises a laser light adjustment device as described above, wherein the laser light adjustment device is fixed to the turntable.
[0018] The laser light adjustment device and CT machine of the utility model have a compact structure and a simple and reliable adjustment mechanism in three degrees of freedom, two of which are rotation and one is translation. The adjustment mechanism can be easily adjusted by bolts or hexagonal heads. The utility model can use multiple sheet metal parts, which is more cost-effective than machining. In addition, after multiple installation and removal, the positioning accuracy of the laser light adjustment device of the utility model can still be maintained. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will be more aware of the above and other features and advantages of the present invention. In the accompanying drawings:
[0020] Figure 1 Schematic diagram of a laser light adjustment device according to an embodiment of the utility model.
[0021] Figure 2 for Figure 1 Schematic diagram of the first adjustment seat of the laser light adjustment device.
[0022] Figure 3 for Figure 1 Schematic diagram of the second adjustment seat of the laser light adjustment device.
[0023] Figure 4 for Figure 1 Schematic diagram of the third adjustment seat of the laser light adjustment device.
[0024] Figure 5 for Figure 1 Schematic diagram of the base plate of the laser light adjustment device.
[0025] In the above drawings, the reference numerals used are as follows:
[0026] 100 Laser light adjustment device 136 External cylindrical surface
[0027] 102 Base plate 138 External hexagonal head
[0028] 104 first adjustment seat 140 inner cylindrical surface
[0029] 106 Laser Light 142 Flange
[0030] 107 second adjustment seat 144 first threaded hole
[0031] 108 third adjustment seat 148 turntable
[0032] 110 rivet 150 fourth end face
[0033] 112 second end surface 154 second through hole
[0034] 114 first end surface 156 second threaded hole
[0035] 115 first bolt 158 third through hole
[0036] 116 First nut 160 Third threaded hole
[0037] 118 second nut 166 seventh through hole
[0038] 120 third end surface 168 gasket
[0039] 121 second bolt 170 fourth through hole
[0040] 122 third nut 172 third threaded hole
[0041] 124 Third bolt 174 Guide pin
[0042] 126 light hole 176 wide slot
[0043] 127 Fourth bolt 178 First slot
[0044] 128 Laser seat 180 Second slot
[0045] 129 Cable 182 Fourth threaded hole
[0046] 130 sleeve 184 storage hole
[0047] 131 first through hole 186 fifth through hole
[0048] 132 set screw 188 sixth through hole
[0049] 134 Mounting hole 190 Data surface DETAILED DESCRIPTION
[0050] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments.
[0051] Figure 1 FIG. 1 is a schematic diagram of a laser light adjustment device 100 according to an embodiment of the present utility model. Figure 1As shown, the laser lamp adjustment device 100 includes a base plate 102, a first adjustment seat 104, a second adjustment seat 107, and a third adjustment seat 108. The first adjustment seat 104 is used to accommodate the laser lamp 106, and the laser lamp 106 is powered by a cable 129. The first adjustment seat 104 is fixed to the second adjustment seat 107 and can rotate relative to the second adjustment seat 107 around the longitudinal direction of the laser lamp 106. The second adjustment seat 107 is pivotally fixed to the third adjustment seat 108. In this embodiment, the second adjustment seat 107 and the third adjustment seat 108 can be connected by a rivet 110. The third adjustment seat 108 can be fixed to the base plate 102 in a translational manner. The third adjustment seat 108 can be connected to the base plate 102, for example, by a third bolt 124.
[0052] like Figure 1 As shown, the second adjustment seat 107 has a first end surface 114 , the third adjustment seat 108 has a second end surface 112 , and the base plate 102 has a third end surface 120 .
[0053] The first bolt 115 passes through the second end face 112 and is threadedly engaged with the first end face 114, thereby connecting the second adjustment seat 107 and the third adjustment seat 108. The first nut 116 is threadedly engaged with the first bolt 115, so that the first bolt 115 can rotate, ensuring that it can form a whole with the side of the second end face 112 during adjustment, and will not get stuck during the adjustment process. Rotating the first bolt 115 can change the distance between the first end face 114 and the second end face 112, so that the second adjustment seat 107 rotates around the rivet 110 relative to the third adjustment seat 108. The second adjustment seat 107 can also include a second nut 118 threadedly engaged with the first bolt 115 to prevent the first bolt 115 from loosening.
[0054] The second bolt 121 passes through the second end surface 112 and is threadedly matched with the third nut 122 and the third end surface 120. The third bolt 124 is loosened and the second bolt 121 is adjusted, so that the third adjustment seat 108 can translate relative to the base 102.
[0055] like Figure 1 As shown, the fourth bolt 127 can fix the laser lamp adjustment device 100 on the turntable in the frame of the CT machine.
[0056] Figure 2 for Figure 1 Schematic diagram of the first adjustment seat 104 of the laser light adjustment device 100. Figure 2As shown, the first adjustment seat 104 includes a laser seat 128 and a sleeve 130, the sleeve 130 has an outer hexagonal head 138, an outer cylindrical surface 136 and a mounting hole 134 for accommodating the laser lamp 106, and the laser seat 128 has an inner cylindrical surface 140, a flange 142, a first through hole 131, a first threaded hole 144 and a set screw 132. In this embodiment, the mounting hole 134 is cylindrical. The laser lamp 106 can be tightly matched with the mounting hole 134, preferably, it can be glued. The outer cylindrical surface 136 of the sleeve 130 is tightly matched with the inner cylindrical surface 140 of the laser seat 128, and the first threaded hole 144 passes through the inner cylindrical surface 140 and is threadedly matched with the set screw 132. Preferably, the laser lamp 106 is cylindrical and coaxial with the outer cylindrical surface 136 of the sleeve 130 and the inner cylindrical surface 140 of the laser seat 128. Loosen the set screw 132 and use an open-end wrench to operate the outer hexagonal head 138 of the sleeve 130, so that the laser plane rotates around the axis of the laser lamp 106, and the first level of adjustment is achieved. After adjustment, the set screw 132 can be used to lock it.
[0057] Figure 3 for Figure 1 Schematic diagram of the second adjustment seat 107 of the laser light adjustment device 100. Figure 3 As shown, the second adjustment seat 107 includes a first end face 114, a first bolt 115, a first nut 116, a turntable 148, and a fourth end face 150. The first end face 114 has a third threaded hole 160 threadedly matched with the first bolt 115, and the first nut 116 is threadedly matched with the first bolt 115. The turntable 148 has a third through hole 158 and a rivet 110, and the rivet 110 is penetrated through the third through hole 158 and pivotally fixes the second adjustment seat 107 to the third adjustment seat 108. The first nut 116 and the first bolt 115 are used to connect the second adjustment seat 107 and the third adjustment seat 108. Figure 1 and Figure 3 , adjusting the depth of the first bolt 115 screwed into the third threaded hole 160 can change the angle of the second adjustment seat 107 relative to the third adjustment seat 108, and realize the second-level adjustment of the laser light adjustment device 100, that is, the rotation of the second adjustment seat 107 relative to the third adjustment seat 108. The fourth end face 150 has a second through hole 154 for accommodating the flange 142 of the laser seat 128, and a second threaded hole 156 corresponding to the first through hole 131 of the laser seat 128. The flange 142 of the laser seat 128 is placed in the second through hole 154 of the fourth end face 150, and the first through hole 131 of the laser seat 128 and the second threaded hole 156 of the fourth end face 150 are aligned, so that the laser seat 128 can be fixed to the fourth end face 150 of the second adjustment seat 107 with screws.
[0058] like Figure 3As shown, the second adjustment seat 107 may further include a second nut 118 threadably matched with the first bolt 115 , and the second nut 118 may prevent the first bolt 115 from loosening.
[0059] Figure 4 for Figure 1 Schematic diagram of the third adjustment seat 108 of the laser light adjustment device 100. Figure 5 for Figure 1 Schematic diagram of the base plate 102 of the laser light adjustment device 100.
[0060] like Figure 4 As shown, the third adjustment seat 108 has a second end surface 112, and the third adjustment seat 108 includes a seventh through hole 166, a pair of fourth through holes 170, a second bolt 121, a third nut 122, a pair of third threaded holes 172, and a pair of guide pins 174. Figure 1 , 3 As shown in FIG. 4 , the first bolt 115 and the second bolt 121 pass through the fourth through hole 170 on the second end surface 112, and the tightness of the first nut 116 and the third nut 122 is adjusted to ensure the movement of the first bolt 115 and the second bolt 121 relative to the third adjustment seat 108 during the adjustment process. The rivet 110 is inserted into the seventh through hole 166. Preferably, the third adjustment seat 108 may also include a gasket 168, which is located between the seventh through hole 166 and the third through hole 158 of the turntable 148, and the gasket 168 allows the turntable 148 and the third adjustment seat 108 to be kept tight and rotate freely. The first bolt 115 is inserted into the fourth through hole 170.
[0061] like Figure 5 As shown, the bottom plate 102 includes a third end surface 120, a wide groove 176, a pair of first grooves 178, and a pair of second grooves 180. The third end surface 120 has a fourth threaded hole 182 threadedly matched with the second bolt 121. The wide groove 176 is used to accommodate the second adjustment seat 107 and the third adjustment seat 108. Figure 1 , Figure 4 and Figure 5 , the third bolt 124 passes through the first groove 178 of the bottom plate 102 and is threadedly matched with the third threaded hole 172 of the third adjustment seat 108, so as to connect the bottom plate 102 and the third adjustment seat 108. The third bolt 124 is loosened, and the depth of the second bolt 121 in the fourth threaded hole 182 is adjusted, so that the guide pin 174 of the third adjustment seat 108 can slide in the second groove 180 of the bottom plate 102, thereby realizing the third-level adjustment of the laser light adjustment device 100, that is, the translation of the third adjustment seat 108 relative to the bottom plate 102.
[0062] refer to Figure 1 ,like Figure 5 As shown, the bottom plate 102 may further include a storage hole 184 for tying the cable 129 .
[0063] like Figure 5 As shown, the bottom plate 102 may include a fifth through hole 186 and a sixth through hole 188, which are used to fix the laser light adjustment device 100 to the turntable of the CT machine. Preferably, the sixth through hole 188 is smaller and used for precise positioning, while the fifth through hole 186 can be an elongated slot for easy installation.
[0064] The bottom plate 102 may further include a light hole 126 and a datum plane 190. The light hole 126 ensures sufficient outgoing light of the laser lamp 106. The datum plane 190 may be used to place a measuring instrument, such as a level, during adjustment.
[0065] According to a second aspect of the present invention, a CT machine is provided, comprising a turntable and a laser light adjusting device 100, wherein the laser light adjusting device 100 is fixed to the turntable.
[0066] The laser light adjustment device and CT machine of the utility model have a compact structure and a simple and reliable adjustment mechanism in three degrees of freedom, two of which are rotation and one is translation. The adjustment mechanism can be easily adjusted by bolts or hexagonal heads. The utility model can use multiple sheet metal parts, which is more cost-effective than machining. In addition, after multiple installation and removal, the positioning accuracy of the laser light adjustment device of the utility model can still be maintained.
[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A laser light adjustment device (100), characterized in that: include: A first adjustment seat (104) for accommodating a laser lamp (106); a second adjustment seat (107), wherein the first adjustment seat (104) is fixed to the second adjustment seat (107) and can rotate relative to the second adjustment seat (107) around the longitudinal direction of the laser lamp (106); a third adjustment seat (108), the second adjustment seat (107) being pivotally fixed to the third adjustment seat (108); The bottom plate (102) is provided with a third adjustment seat (108) which is fixed to the bottom plate (102) in a translationally movable manner.
2. The laser light adjustment device (100) according to claim 1, characterized in that: The first adjustment seat (104) comprises a laser seat (128) and a sleeve (130); the sleeve (130) has an external hexagonal head (138), an external cylindrical surface (136) and a mounting hole (134) for accommodating a laser lamp (106); the laser seat (128) has an internal cylindrical surface (140), a flange (142), a first through hole (131), a first threaded hole (144) and a set screw (132); the external cylindrical surface (136) of the sleeve (130) is tightly matched with the internal cylindrical surface (140) of the laser seat (128); the first threaded hole (144) passes through the internal cylindrical surface (140) and is threadedly matched with the set screw (132).
3. The laser light adjustment device (100) according to claim 2, characterized in that: The second adjustment seat (107) comprises a first end surface (114), a first bolt (115), a first nut (116), a turntable (148), and a fourth end surface (150); The first end surface (114) has a third threaded hole (160) threadably matched with the first bolt (115), and the first nut (116) threadably matches with the first bolt (115); The turntable (148) has a third through hole (158) and a rivet (110), wherein the rivet (110) is inserted into the third through hole (158) and pivotally fixes the second adjustment seat (107) to the third adjustment seat (108), and the first nut (116) and the first bolt (115) are used to connect the second adjustment seat (107) and the third adjustment seat (108); by adjusting the depth of the first bolt (115) screwed into the third threaded hole (160), the angle of the second adjustment seat (107) relative to the third adjustment seat (108) can be changed; The fourth end surface (150) has a second through hole (154) for accommodating the flange (142) of the laser seat (128) and a second threaded hole (156) corresponding to the first through hole (131) of the laser seat (128).
4. The laser light adjustment device (100) according to claim 3, characterized in that: The second adjustment seat (107) includes a second nut (118) threadedly matched with the first bolt (115).
5. The laser light adjustment device (100) according to claim 3, characterized in that: The third adjustment seat (108) comprises a seventh through hole (166), a pair of fourth through holes (170), a second bolt (121), a third nut (122), a pair of third threaded holes (172), and a pair of guide pins (174); The rivet (110) is inserted into the seventh through hole (166); The first bolt (115) is inserted into the fourth through hole (170).
6. The laser light adjustment device (100) according to claim 5, characterized in that: The third adjustment seat (108) includes a gasket (168) which is located between the third through hole (158) and the seventh through hole (166).
7. The laser light adjustment device (100) according to claim 5, characterized in that: The bottom plate (102) includes a third end surface (120), a wide groove (176), a pair of first grooves (178), and a pair of second grooves (180); The third end surface (120) has a fourth threaded hole (182) threadably matched with the second bolt (121); The wide groove (176) is used to accommodate the second adjustment seat (107) and the third adjustment seat (108); The first groove (178) is used to connect the bottom plate (102) and the third adjustment seat (108), and the guide pin (174) of the third adjustment seat (108) can slide in the second groove (180).
8. The laser light adjustment device (100) according to claim 7, characterized in that: The bottom plate (102) includes a storage hole (184) for binding cables (129).
9. The laser light adjustment device (100) according to claim 1, characterized in that: The bottom plate (102) comprises a fifth through hole (186) and a sixth through hole (188), and the fifth through hole (186) and the sixth through hole (188) are used to fix the laser light adjustment device (100) to a turntable of a CT machine.
10. The laser light adjustment device (100) according to claim 9, characterized in that: The fifth through hole (186) is elongated.
11. A CT machine, comprising a turntable, characterized in that: It also comprises a laser light adjustment device (100) as claimed in any one of claims 1 to 10, wherein the laser light adjustment device (100) is fixed to the turntable.