Beam limiting cylinder fixing structure and handheld dental X-ray machine
Through the design of the fixed structure of the beam-limiting cylinder, the fixed connection between the cover and the beam-limiting cylinder and the shell, combined with the locking rod and the positioning ring, the safety problems caused by the removable protection plate are solved, and the non-removable connection of the protective plate is realized to ensure the safety of the dentist.
Patent Information
- Application Number
- CN202422088477.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, the protective plate of the handheld dental X-ray machine and the beam-limiting cylinder are threaded to be detachable, which cannot ensure safety in the dentist's professional environment.
The beam limiting cylinder fixing structure is adopted, and the beam limiting cylinder and the shell are fixedly connected through the two ends of the shell, and combined with the locking rod and positioning ring structure, the beam limiting cylinder, protective plate and shell are not detachably fixed.
The non-removable connection of the protective plate is realized to prevent the patient's skin from rays reflected on the doctor, ensuring the safety of the dentist's professional environment.
Smart Images
Figure CN223126548U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of dental medical devices, and more specifically, to a collimator fixing structure and a handheld dental X-ray machine. Background Art
[0002] In order to minimize the impact of rays on patients as much as possible, the ray generator of a handheld dental X-ray machine needs to be kept more than 20 cm away from the patient panel. Therefore, a section of collimator is generally designed at the front end of the outgoing line of a handheld dental X-ray machine. While controlling the distance, it can also limit the rays within the collimator area to ensure the imaging quality and the safety of users and patients. For cost and styling considerations, the collimator is generally connected and fixed to the main body shell as a separate part and is an important integral part of a handheld dental X-ray machine; and in order to reduce the stray radiation to users after ray reflection, a protective plate made of a transparent polymer material is usually installed at the front end of the collimator, and the carrier for installing the protective plate: the collimator and the main body are connected by threads, and users can directly rotate and remove them by hand, resulting in the protective plate being detachably connected to the handheld dental X-ray machine, thus unable to ensure the personal health in the dentist's professional environment. Summary of the Utility Model
[0003] The technical solution of this application is to provide a collimator fixing structure and a handheld dental X-ray machine, which are used to solve the problem that in the prior art, the protective plate is detachably connected to the handheld dental X-ray machine, resulting in the inability to ensure the personal health in the dentist's professional environment.
[0004] In order to solve the above technical problems, the technical solution of this application provides a collimator fixing structure, which adopts the following technical solutions:
[0005] A collimator fixing structure includes: a housing, a collimator, a protective plate, and a cover shell; a connecting pipe is provided on one side wall of the housing; the collimator is connected to the connecting pipe; the protective plate is arranged at one end of the collimator away from the connecting pipe; the cover shell has openings at both ends, a fixing part is provided on the inner wall of the cover shell, the cover shell is sleeved on the collimator, and both ends of the cover shell are respectively fixedly connected to the outer wall of the collimator and the side wall of the housing, and the fixing part is connected to the housing.
[0006] Further, jacks and locking channels are respectively provided on two adjacent side walls of the housing. The jacks and the connecting pipe are located on the same side wall of the housing, the jacks are communicated with the locking channels, the fixing part is located in the jacks, a fixing hole coaxially arranged with the locking channels is provided on the fixing part, and a locking rod is arranged in the locking channels. The locking rod penetrates through the fixing hole and is connected to the locking channels.
[0007] Further, the outer shell includes two side shells. On one side of each side shell, there is a semi-tube and a groove. The two side shells enclose to form a receiving cavity. The two semi-tubes enclose to form the connecting tube communicating with the receiving cavity. The two grooves enclose to form the jack communicating with the receiving cavity. Inside each side shell, there is a fixing post. On one of the fixing posts, there is a through groove penetrating both ends. Near one end of the other fixing post close to the groove, there is a locking hole. The through groove and the locking hole form the locking channel. The locking rod is placed in the through groove, and the locking rod penetrates the fixing hole and is connected to the locking hole.
[0008] Further, the outer shell is also provided with a card slot. The card slot is arranged at an interval from the connecting tube. The inner wall of the cover shell is also provided with a connecting part. At one end of the connecting part away from the cover shell, there is a buckle. The buckle is clamped with the card slot.
[0009] Furthermore, the beam limiting cylinder fixing structure further includes a positioning ring. At the end of the beam limiting cylinder away from the connecting tube, there is a supporting platform. The protective plate is connected to the supporting platform. The positioning ring is sleeved on the beam limiting cylinder and connected to the beam limiting cylinder. The supporting platform and the positioning ring clamp the protective plate.
[0010] Further, the supporting platform and the protective plate are connected through a limiting structure. The limiting structure includes a limiting protrusion and a limiting groove. One of the limiting protrusion and the limiting groove is arranged on the protective plate, and the other is arranged on the supporting platform. The limiting protrusion and the limiting groove are inserted into each other; and / or
[0011] The positioning ring is threadedly connected to the beam limiting cylinder.
[0012] Further, at one end of the beam limiting cylinder away from the protective plate, there is a positioning protrusion. On the inner wall of the cover shell at one end away from the outer shell, there is a positioning groove. The positioning protrusion cooperates with the positioning groove.
[0013] Further, the beam limiting cylinder fixing structure further includes an elastic member. The elastic member is arranged on the connecting tube. The beam limiting cylinder and the side wall of the outer shell clamp the elastic member.
[0014] Further, at the end of the beam limiting cylinder close to the outer shell, there is a limiting part. On the side wall of the outer shell, there is a stopping part corresponding to the limiting part. The side wall of the limiting part abuts against the stopping part.
[0015] To solve the above technical problems, the technical solution of the present application also provides a handheld dental X-ray machine, which adopts the following technical solution:
[0016] A handheld dental X-ray machine includes the beam limiting cylinder fixing structure as described above.
[0017] Compared with the prior art, the technical solution of the present application mainly has the following beneficial effects: Since both ends of the housing are fixedly connected to the beam limiting cylinder and the outer shell respectively, and the fixing part is connected to the outer shell, it is impossible to directly remove the beam limiting cylinder by rotation, realizing the complete fixation of the beam limiting cylinder, the protection plate and the outer shell, thereby achieving the purpose that the protection plate cannot be disassembled after installation, and the protection plate can prevent the rays reflected by the patient's skin from hitting the doctor, thus ensuring the personal health in the dental professional environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the solution of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0019] Figure 1 is an exploded view of a beam limiting cylinder fixing structure provided by an embodiment of the present application;
[0020] Figure 2 is Figure 1 a schematic structural view of the middle side shell in
[0021] Figures 3 to 9 is a schematic view of a beam limiting cylinder fixing structure provided by an embodiment of the present application at different assembly stages;
[0022] Figure 10 is Figure 7 an enlarged view of part A in
[0023] Figure 11 is Figure 8 an enlarged view of part B in
[0024] Figure 12 is Figure 8 an enlarged view of part C in
[0025] Figure 13 is Figure 9 a cross-sectional view taken along line D-D in
[0026] Reference numerals: 1. Outer shell; 11. Connecting pipe; 12. Jack; 13. Locking channel; 14. Side shell; 141. Half pipe; 142. Groove; 143. Fixed post; 144. Through groove; 145. Locking hole; 15. Card slot; 16. Stopping part; 2. Beam limiting cylinder; 21. Supporting platform; 22. Positioning protrusion; 23. Limiting part; 3. Protection plate; 4. Housing; 41. Fixing part; 411. Fixing hole; 42. Connecting part; 421. Buckle; 43. Positioning groove; 5. Locking rod; 6. Positioning ring; 71. Limiting protrusion; 72. Limiting groove; 8. Elastic member. Specific Embodiments
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.
[0028] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0029] To enable those skilled in the technical field to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0030] The embodiments of this application provide a collimator tube fixing structure, as Figure 1 , 5 , shown in Figure 9, including: a housing 1, a collimator tube 2, a protection plate 3, and a cover 4; a connecting tube 11 is provided on one side wall of the housing 1; the collimator tube 2 is connected to the connecting tube 11; the protection plate 3 is provided at one end of the collimator tube 2 away from the connecting tube 11; both ends of the cover 4 are open, a fixing portion 41 is provided on the inner wall of the cover 4, the cover 4 is sleeved on the collimator tube 2, and both ends of the cover 4 are respectively fixedly connected to the outer wall of the collimator tube 2 and the side wall of the housing 1, and the fixing portion 41 is connected to the housing 1.
[0031] The assembly principle of a collimator tube fixing structure provided by the embodiments of this application is as follows: First, align the protection plate 3 with the collimator tube 2, then insert the protection plate 3 onto the collimator tube 2 and connect the protection plate 3 to the collimator tube 2; then, align the cover 4 with the collimator tube 2 and sleeve the cover 4 onto the collimator tube 2; then, connect the collimator tube 2 to the connecting tube 11, and then push the cover 4 in the direction of the housing 1 so that one end of the cover 4 away from the protection plate 3 is fixedly connected to the side wall of the housing 1, and one end of the cover 4 close to the protection plate 3 is fixedly connected to the outer wall of the collimator tube 2; finally, connect the fixing portion 41 to the housing 1.
[0032] The beneficial effects of a beam limiting cylinder fixing structure provided by an embodiment of the present application are as follows: Since both ends of the cover 4 are fixedly connected to the beam limiting cylinder 2 and the outer shell 1 respectively, and the fixing part 41 is connected to the outer shell 1, it is impossible to directly remove the beam limiting cylinder 2 by rotation, realizing the complete fixation of the beam limiting cylinder 2, the protective plate 3 and the outer shell 1, thus achieving the purpose that the protective plate 3 cannot be disassembled after installation, and the protective plate 3 can prevent the rays reflected by the patient's skin from hitting the doctor, thereby ensuring the personal health in the dentist's working environment.
[0033] Specifically, an external thread (not shown) is provided on the outer wall of the connecting pipe 11, and an internal thread (not shown) is provided on the inner wall of the beam limiting cylinder 2. The beam limiting cylinder 2 is threadedly connected to the connecting pipe 11; so as to facilitate the connection between the beam limiting cylinder 2 and the connecting pipe 11.
[0034] As Figure 6 shown, further, insertion holes 12 and locking channels 13 are respectively provided on two adjacent side walls of the outer shell 1. The insertion hole 12 and the connecting pipe 11 are located on the same side wall of the outer shell 1. The insertion hole 12 communicates with the locking channel 13. The fixing part 41 is located in the insertion hole 12. A fixing hole 411 coaxial with the locking channel 13 is provided on the fixing part 41. A locking rod 5 is provided in the locking channel 13. The locking rod 5 penetrates through the fixing hole 411 and is connected to the locking channel 13.
[0035] In this embodiment, the cover 4 is pushed towards the outer shell 1, so that one end of the cover 4 away from the protective plate 3 is connected to the side wall of the outer shell 1, and one end of the cover 4 close to the protective plate 3 is connected to the outer wall of the beam limiting cylinder 2. At the same time, the fixing part 41 is inserted into the insertion hole 12, and then the locking rod 5 is sent into the locking channel 13, so that the locking rod 5 penetrates through the fixing hole 411 and is connected to the locking channel 13, to prevent the fixing part 41 from disengaging from the insertion hole 12, realizing the complete fixation of the beam limiting cylinder 2, the protective plate 3 and the outer shell 1.
[0036] Specifically, the number of the insertion holes 12, the fixing parts 41 and the locking channels 13 is two each. The insertion holes 12 and the fixing parts 41 are correspondingly arranged. The two insertion holes 12 are respectively arranged at the upper and lower ends of the side wall of the outer shell 1 having the connecting pipe 11.
[0037] In this embodiment, two insertion holes 12, two fixing parts 41 and two locking channels 13 are provided to improve the stability of the cover 4.
[0038] As Figure 2 、 13As shown, further, the housing 1 includes two side shells 14. On one side of each side shell 14, there is a semi-tube 141 and a groove 142. The two side shells 14 enclose to form a receiving cavity (not shown). The two semi-tubes 141 enclose to form the connecting pipe 11 communicating with the receiving cavity, and the two grooves 142 enclose to form the jack 12 communicating with the receiving cavity. Inside each side shell 14, there is a fixing post 143. A through slot 144 penetrating both ends is provided on one of the fixing posts 143, and a locking hole 145 is provided at one end of the other fixing post 143 adjacent to the groove 142. The through slot 144 and the locking hole 145 form the locking channel 13. The locking rod 5 is placed in the through slot 144, and the locking rod 5 penetrates the fixing hole 411 and is connected to the locking hole 145.
[0039] In this embodiment, the assembly principle of the beam limiting cylinder fixing structure is as follows: First, the two side shells 14 are assembled together to form a receiving cavity for installing the fuel tank. The two semi-tubes 141 enclose to form the connecting pipe 11, and the two grooves 142 enclose to form the jack 12. Then, align the protective plate 3 with the beam limiting cylinder 2, and then insert the protective plate 3 onto the beam limiting cylinder 2 and connect the protective plate 3 to the beam limiting cylinder 2. Next, align the cover shell 4 with the beam limiting cylinder 2 and sleuth the cover shell 4 onto the beam limiting cylinder 2. Then, connect the beam limiting cylinder 2 to the connecting pipe 11. Immediately afterwards, push the cover shell 4 towards the housing 1 so that one end of the cover shell 4 away from the protective plate 3 is fixedly connected to the side wall of the housing 1, and one end of the cover shell 4 adjacent to the protective plate 3 is fixedly connected to the outer wall of the beam limiting cylinder 2. At the same time, the fixing part 41 is inserted into the jack 12. Then, send the locking rod 5 into the through slot 144 so that the locking rod 5 penetrates the fixing hole 411 and is connected to the locking hole 145, which realizes the fixation of the two side shells 14 and also prevents the fixing part 41 from disengaging from the jack 12, achieving the complete fixation of the beam limiting cylinder 2, the protective plate 3 and the housing 1.
[0040] Specifically, the locking rod 5 is a screw, and the locking rod 5 is threadedly connected to the locking hole 145 to facilitate locking the two side shells 14 and the fixing part 41.
[0041] As Figure 5 、 10 As shown in FIGS. 11, further, the housing 1 is further provided with a card slot 15, the card slot 15 is arranged at an interval from the connecting pipe 11, the inner wall of the cover shell 4 is further provided with a connecting part 42, and a buckle 421 is provided at one end of the connecting part 42 away from the cover shell 4. The buckle 421 is snap-fitted with the card slot 15.
[0042] In this embodiment, the push cover 4 is moved towards the outer shell 1. One end of the cover 4 adjacent to the protection plate 3 is fixedly connected to the outer wall of the beam limiting cylinder 2. When the fixing part 41 is inserted into the jack 12, the buckle 421 at the end of the connecting part 42 is inserted into the clamping groove 15, realizing the fixation of the cover 4, so as to facilitate the connection between the fixing part 41 and the outer shell 1. In addition, the cooperation between the buckle 421 and the clamping groove 15, and the cooperation between the beam limiting cylinder 2 and the cover 4 prevent the beam limiting cylinder 2 from rotating, thus forming a fixing structure.
[0043] As Figures 3 to 5 shown, further, the beam limiting cylinder fixing structure further includes a positioning ring 6. A supporting platform 21 is provided at the end of the beam limiting cylinder 2 away from the connecting pipe 11. The protection plate 3 is connected to the supporting platform 21. The positioning ring 6 is sleeved on the beam limiting cylinder 2 and connected to the beam limiting cylinder 2. The supporting platform 21 and the positioning ring 6 clamp the protection plate 3.
[0044] In this embodiment, after the protection plate 3 is inserted into the beam limiting cylinder 2, the protection plate 3 is moved towards the supporting platform 21 until the protection plate 3 is connected to the supporting platform 21. Then, the positioning ring 6 is sleeved on the beam limiting cylinder 2, and the positioning ring 6 is moved towards the supporting platform 21 so that the positioning ring 6 abuts against the side surface of the protection plate 3 and the positioning ring 6 is connected to the beam limiting cylinder 2. The positioning ring 6 presses the protection plate 3 against the supporting platform 21, thus realizing the fixation of the protection plate 3.
[0045] Further, the positioning ring 6 is threadedly connected to the beam limiting cylinder 2, so as to facilitate the installation of the positioning ring 6.
[0046] Specifically, the inner wall of the positioning ring 6 is provided with internal threads, and the outer wall of the end of the beam limiting cylinder 2 away from the outer shell 1 is provided with external threads.
[0047] In this embodiment, after the positioning ring 6 is sleeved on the beam limiting cylinder 2, the positioning ring 6 is pushed to the external thread of the beam limiting cylinder 2 for rotation. After the positioning ring 6 rotates to the limit position (i.e., the position where it cannot be further rotated), the positioning ring 6 presses the protection plate 3.
[0048] Further, glue can be applied to the external thread of the beam limiting cylinder 2, thereby realizing the non-detachable effect of the positioning ring 6.
[0049] As Figure 3 shown, further, the supporting platform 21 and the protection plate 3 are connected through a limiting structure. The limiting structure includes a limiting protrusion 71 and a limiting groove 72. One of the limiting protrusion 71 and the limiting groove 72 is provided on the protection plate 3, and the other is provided on the supporting platform 21. The limiting protrusion 71 and the limiting groove 72 are inserted into each other.
[0050] In this embodiment, during installation, the protection plate 3 is aligned with the beam limiting cylinder 2, and the limiting protrusion 71 is inserted into the limiting groove 72, thereby restricting the positions of the protection plate 3 and the beam limiting cylinder 2 and preventing the protection plate 3 from rotating around the outer wall of the beam limiting cylinder 2, playing a role in preventing the rotation of the protection plate 3.
[0051] Preferably, the limiting protrusion 71 is provided on the supporting table 21, and the limiting groove 72 is provided on the inner wall of the protection plate 3.
[0052] As Figure 5 、 8 As shown in Figures 12, further, a positioning protrusion 22 is provided at one end of the beam limiting cylinder 2 away from the protection plate 3, and a positioning groove 43 is provided on the inner wall of the cover 4 at one end away from the housing 1. The positioning protrusion 22 cooperates with the positioning groove 43.
[0053] In this embodiment, the cover 4 is pushed towards the housing 1, so that one end of the cover 4 away from the protection plate 3 is fixedly connected to the side wall of the housing 1. When the fixing portion 41 is connected to the housing 1, the positioning protrusion 22 is inserted into the positioning groove 43; through the cooperation of the cover 4 and the housing 1 and the cooperation of the positioning protrusion 22 and the positioning, the beam limiting cylinder 2 cannot rotate, thus forming a fixing structure.
[0054] As Figure 8 shown, further, the beam limiting cylinder fixing structure further includes an elastic member 8. The elastic member 8 is provided on the connecting pipe 11, and the side walls of the beam limiting cylinder 2 and the housing 1 clamp the elastic member 8.
[0055] In this embodiment, the elastic member 8 is first arranged on the connecting pipe 11. When the beam limiting cylinder 2 is connected to the connecting pipe 11, the elastic body is squeezed, so that in addition to generating a clearance eliminating force in the circumferential direction, the elastic body also plays a further role in stabilizing the beam limiting cylinder 2 in the radial direction, that is, the elastic body is in contact with the inner wall of the beam limiting cylinder 2 and the outer wall of the connecting pipe 11 at the same time, thereby further improving the reliability of the fixation of the beam limiting cylinder 2.
[0056] Specifically, the elastic body is an elastic ring, a spring or a metal elastic sheet.
[0057] As Figure 7 、 10 shown, further, a limiting portion 23 is provided at the end of the beam limiting cylinder 2 close to the housing 1, and a stopping portion 16 corresponding to the limiting portion 23 is provided on the side wall of the housing 1. The side wall of the limiting portion 23 abuts against the stopping portion 16.
[0058] In this embodiment, during the process of assembling the collimator tube 2 and the connecting pipe 11, when the limiting portion 23 abuts against the stopping portion 16, the collimator tube 2 cannot move further, which means the collimator tube 2 is installed in place. In addition, the abutment of the stopping portion 16 and the limiting portion 23 also positions the end face of the collimator tube 2, avoiding the shaking caused by the non-fitting of the end of the collimator tube 2 and the side wall of the housing 1, and further improving the fixing reliability of the collimator tube 2.
[0059] In summary, the assembly principle of the collimator tube fixing structure provided by the embodiment of the present application is as follows:
[0060] Refer to Figure 3 , first, insert the protective plate 3 onto the collimator tube 2, and move the protective plate 3 towards the direction of the supporting platform 21, so that the limiting protrusion 71 enters the limiting groove 72, realizing the connection between the protective plate 3 and the supporting platform 21;
[0061] Refer to Figure 4 , then, sleuth the positioning ring 6 onto the collimator tube 2, move the positioning ring 6 towards the direction of the supporting platform 21, push the positioning ring 6 to the external thread of the collimator tube 2 and rotate it. When the positioning ring 6 rotates to the limit position, make the positioning ring 6 abut against the side surface of the protective plate 3, and the positioning ring 6 presses the protective plate 3 against the supporting platform 21;
[0062] Refer to Figure 5 , then, align the housing 4 with the collimator tube 2, and sleuth the housing 4 onto the collimator tube 2;
[0063] Refer to Figure 6 , then, fit the two side shells 14 together to form a receiving cavity, the two half tubes 141 enclose to form the connecting pipe 11, the two grooves 142 enclose to form the insertion hole 12, and arrange the elastic member 8 on the connecting pipe 11;
[0064] Refer to Figure 7 、 10 , then, connect the collimator tube 2 and the connecting pipe 11 by thread. Rotate the collimator tube 2 until the limiting portion 23 abuts against the stopping portion 16, and the collimator tube 2 cannot move further, which means the collimator tube 2 is installed in place;
[0065] Refer to Figure 8 、 11 、12, then, push the housing 4 towards the direction of the housing 1, so that the buckle 421 at the end of the connecting portion 42 is inserted into the card slot 15, realizing the connection between the end of the housing 4 far from the protective plate 3 and the side wall of the housing 1; and make the positioning protrusion 22 inserted into the positioning groove 43, realizing the connection between the end of the housing 4 close to the protective plate 3 and the outer wall of the collimator tube 2; meanwhile, the fixing portion 41 is inserted into the insertion hole 12;
[0066] Refer to Figure 13, Finally, the locking rod 5 is inserted into the through groove 144, so that the locking rod 5 penetrates through the fixing hole 411 and is connected to the locking hole 145, which realizes the fixation of the two side shells 14 and also prevents the fixing part 41 from disengaging from the jack 12, thus realizing the complete fixation of the beam limiting cylinder 2, the protection plate 3 and the outer shell 1.
[0067] The embodiment of the present application also provides a handheld dental X-ray machine, and the handheld dental X-ray machine includes the beam limiting cylinder fixing structure as described above.
[0068] The beneficial effect of a handheld dental X-ray machine provided by the embodiment of the present application is that since both ends of the cover shell 4 are fixedly connected to the beam limiting cylinder 2 and the outer shell 1 respectively, and the fixing part 41 is connected to the outer shell 1, it is impossible to directly remove the beam limiting cylinder 2 by rotation, realizing the complete fixation of the beam limiting cylinder 2, the protection plate 3 and the outer shell 1, thereby achieving the purpose that the protection plate 3 cannot be disassembled after installation.
[0069] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the scope of the patent of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields shall be equally within the scope of the patent protection of the present application.
Claims
1. A collimator fixing structure, characterized in that, Comprising: A housing, a collimator tube, a protective plate and a cover; a connecting pipe is provided on one side wall of the housing; The collimator tube is connected to the connecting pipe; The protective plate is provided at one end of the collimator tube away from the connecting pipe; both ends of the cover are open, a fixing part is provided on the inner wall of the cover, the cover is sleeved on the collimator tube, and both ends of the cover are respectively fixedly connected to the outer wall of the collimator tube and the side wall of the housing, and the fixing part is connected to the housing.
2. The beam limiting cylinder fixing structure according to claim 1, characterized in that, On two adjacent side walls of the housing, a jack and a locking channel are respectively provided. The jack and the connecting pipe are on the same side wall of the housing. The jack is communicated with the locking channel. The fixing part is located in the jack. A fixing hole coaxially arranged with the locking channel is provided on the fixing part. A locking rod is provided in the locking channel. The locking rod penetrates through the fixing hole and is connected to the locking channel.
3. The beam limiting cylinder fixing structure according to claim 2, characterized in that, The housing includes two side shells. On one side of each side shell, a half pipe and a groove are provided. The two side shells enclose to form an accommodation cavity. The two half pipes enclose to form the connecting pipe communicated with the accommodation cavity. The two grooves enclose to form the jack communicated with the accommodation cavity; A fixing column is provided in each side shell. A through groove penetrating through both ends is provided on one of the fixing columns. A locking hole is provided at one end of the other fixing column close to the groove. The through groove and the locking hole form the locking channel. The locking rod is placed in the through groove, and the locking rod penetrates through the fixing hole and is connected to the locking hole.
4. The collimator fixing structure according to any one of claims 1 to 3, characterized in that The housing is further provided with a card slot. The card slot is arranged at an interval from the connecting pipe. A connecting part is further provided on the inner wall of the cover. A buckle is provided at one end of the connecting part away from the cover. The buckle is clamped with the card slot.
5. The beam limiting cylinder fixing structure according to any one of claims 1 to 3, characterized in that The collimator tube fixing structure further includes a positioning ring; a supporting platform is provided at the end of the collimator tube away from the connecting pipe. The protective plate is connected to the supporting platform. The positioning ring is sleeved on the collimator tube and connected to the collimator tube. The supporting platform and the positioning ring clamp the protective plate.
6. The beam limiting cylinder fixing structure according to claim 5, wherein The supporting platform and the protective plate are connected by a limiting structure. The limiting structure includes a limiting protrusion and a limiting groove. One of the limiting protrusion and the limiting groove is provided on the protective plate, and the other is provided on the supporting platform. The limiting protrusion and the limiting groove are inserted; and / or The positioning ring is threadedly connected to the collimator tube.
7. The beam limiting cylinder fixing structure according to any one of claims 1 to 3, characterized in that, A positioning protrusion is provided at the end of the collimator tube away from the protective plate. A positioning groove is provided on the inner wall of the cover at the end away from the housing. The positioning protrusion cooperates with the positioning groove.
8. The beam limiting cylinder fixing structure according to any one of claims 1 to 3, characterized in that, The collimator tube fixing structure further includes an elastic member. The elastic member is provided on the connecting pipe. The collimator tube and the side wall of the housing clamp the elastic member.
9. The collimator fixing structure according to any one of claims 1 to 3, characterized in that, A limiting part is provided at the end of the collimator tube close to the housing. A stopping part corresponding to the limiting part is provided on the side wall of the housing. The side wall of the limiting part abuts against the stopping part.
10. A handheld dental X-ray machine, characterized in that, Comprising the collimator tube fixing structure according to any one of claims 1 to 9.