A continuous film replacing device and dental film machine

Abstract

The utility model relates to oral cavity medical instrument technical field especially a kind of continuous membrane replacement device and dental film machine, including tooth bar, membrane roll and empty roll and two roll rollers, two roll rollers are oppositely fixed in tooth bar both sides, the membrane roll is fixed on the roll roller of tooth bar side, the empty roll is fixed on the roll roller of tooth bar other side;Membrane of membrane roll is respectively from the upper and lower sides of tooth bar U-shaped and wrapped tooth bar, membrane and tooth bar slidingly connect, the end of membrane and empty roll fixed connection. By setting up membrane and wrapping tooth bar, saliva and bacteria virus are all left on membrane when patient bites tooth bar, this section of membrane section with residue becomes waste membrane, the utility model is collected by rotating empty roll on roll roller and pulling membrane to move to realize waste membrane, membrane roll on the roll roller of other side of tooth bar is placed with membrane, new membrane section rewraps tooth bar, to complete continuous membrane replacement action, avoid the situation that tooth bar needs to be cleaned frequently.

Description

Technical Field

[0001] This utility model relates to the field of oral medical device technology, and in particular to a continuous membrane changing device and a dental X-ray machine. Background Technology

[0002] Dental X-ray machines are commonly used in dental treatment, primarily to take X-ray images of teeth and jawbones, helping dentists to more accurately diagnose and treat oral problems. The machine has a dental rod that the patient bites down to separate the upper and lower jaws for the dentist to view the X-ray. However, the dental rod needs to be carefully cleaned and disinfected after each use. With many patients and frequent use of the machine, it is difficult to clean the rod quickly and thoroughly, leading to inadequate hygiene and, in severe cases, even the spread of viral infections. Utility Model Content

[0003] The main objective of this invention is to provide a continuous film changing device and a dental X-ray machine to solve the technical problem in the prior art where the dental X-ray machine is difficult to clean quickly and thoroughly when there are many patients and frequent use is required.

[0004] To achieve the above objectives, this utility model provides a continuous film changing device, including a toothed bar, a film roll, an empty roll, and two rollers. The two rollers are fixed relative to each other on both sides of the toothed bar. The film roll is fixed on the roller on one side of the toothed bar, and the empty roll is fixed on the roller on the other side of the toothed bar. The film of the film roll wraps around the toothed bar in a U-shape from the upper and lower sides, and the film is slidably connected to the toothed bar. The end of the film is fixedly connected to the empty roll.

[0005] Preferably, the membrane is a double-layer membrane, with one side open and the other side closed, and the double-layer membrane is located on the upper and lower sides of the toothed bar, respectively.

[0006] More preferably, it also includes a membrane divider, which is fixed on the side of the toothed bar facing the membrane roll and placed between the two membrane layers.

[0007] Furthermore, it also includes a fixed base and a rotating shaft, one end of which is fixedly connected to the roller, and the rotating shaft is rotatably connected to the fixed base.

[0008] More preferably, it also includes a handle, the other end of the rotating shaft is fixedly connected to the handle, the diameter of the handle is larger than the diameter of the rotating shaft, and the outer periphery of the handle is also provided with anti-slip patterns.

[0009] More preferably, the winding roller includes a driving roller and a driven roller, the driving roller is fixedly connected to the empty roll, the driven roller is fixedly connected to the film roll, the rotation shaft of the driving roller is connected to a motor, and the rotation direction of the driving roller is consistent with the unwinding direction of the film roll.

[0010] More preferably, the fixed base is further provided with a damping block, which abuts against the rotating shaft.

[0011] More preferably, it also includes an adjusting rod connected to the damping block, and the fixing seat has a groove, in which the damping block is disposed, and the thickness of the damping block is less than the height of the groove.

[0012] Preferably, the interior of the film roll and the empty roll is hollow, and the roller passes through it. The roller includes a fixed part and a movable part, and the fixed part and the movable part are connected by a spring.

[0013] This utility model also provides a dental X-ray machine, including the continuous film changing device as described above, and also including a head fixator and a support plate. The head fixator is connected to the continuous film changing device, and the support plate is fixed in front of the toothed bar. The distance between the support plate and the toothed bar is the same as the height of the patient's mandible.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, a membrane is used to wrap the toothed rod. When the patient bites down on the rod, saliva, bacteria, and viruses are left on the membrane. This section of the membrane with residue becomes waste membrane. This invention collects the waste membrane by rotating an empty roll on a roller to move the membrane. The membrane roll on the roller on the other side of the toothed rod is then released, and a new membrane section re-wraps the toothed rod, thus completing the continuous membrane replacement action. This avoids the need for frequent cleaning of the toothed rod, can adapt to situations with a large number of patients, improves hygiene conditions, and effectively reduces the risk of cross-infection of viruses. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model;

[0018] Figure 2 This is a top view of the overall structure in one embodiment of the present invention;

[0019] Figure 3 This is a side sectional view of the rack position in one embodiment of the present invention;

[0020] Figure 4This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present invention;

[0021] Figure 5 This is an enlarged schematic diagram of the roller and the fixed base in one embodiment of the present invention;

[0022] Figure 6 This is a cross-sectional schematic diagram of the fixing base in one embodiment of the present utility model.

[0023] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0024] Explanation of icon numbers:

[0025] 1. Membrane roll; 2. Empty roll; 3. Roller; 301. Fixed part; 302. Moving part; 303. Spring; 4. Fixed base; 401. Groove; 5. Rotating shaft; 6. Handle; 7. Toothed rod; 8. Double-layer membrane; 9. Membrane separator; 10. Adjusting rod; 11. Damping block. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] Please see Figures 1 to 6 The following embodiment provides a continuous film changing device, including a toothed bar 7, a film roll 1, an empty roll 2, and two rollers 3. The two rollers 3 are fixed to each other on both sides of the toothed bar 7. The film roll 1 is fixed on the roller 3 on one side of the toothed bar 7, and the empty roll 2 is fixed on the roller 3 on the other side of the toothed bar 7. The film of the film roll 1 wraps around the toothed bar 7 in a U-shape from the upper and lower sides of the toothed bar 7. The film is slidably connected to the toothed bar 7, and the end of the film is fixedly connected to the empty roll 2.

[0031] The working principle of this invention is to wrap the toothed rod 7 with a membrane. When the patient bites on the toothed rod 7, saliva, bacteria, and viruses are left on the membrane. This section of the membrane with residue becomes waste membrane. This invention collects the waste membrane by rotating the empty roll 2 on the rotating roller 3 to move the membrane. The membrane roll 1 on the other side of the toothed rod 7 is released at the same time, and the new membrane section re-wraps the toothed rod 7, thereby completing the continuous membrane replacement action. This avoids the need for frequent cleaning of the toothed rod 7, can adapt to situations with a large number of patients, improves hygiene conditions, and effectively reduces the risk of cross-infection of viruses.

[0032] In this embodiment, the membrane roll 1 is formed by winding membrane segments. The membrane segments are spindle-shaped and the length of the membrane segments is greater than twice the maximum circumference of the membrane roll 1. Each time the membrane is replaced, the middle part of the membrane segment is located at the toothed bar 7, so that the contaminated area with residue can be covered by the uncontaminated area of ​​the membrane segment, thereby reducing the odor generated by the empty roll 2 not being cleaned for a long time.

[0033] In this embodiment, a housing is further provided at the empty roll 2 position to accommodate the empty roll 2, further reducing the odor of the empty roll 2 and preventing the patient from seeing the contaminated area inside the empty roll 2, which would cause discomfort.

[0034] Preferably, the membrane is a double-layer membrane 8, with one side open and the other side closed, and the double-layer membrane 8 is located on the upper and lower sides of the toothed rod 7 respectively. The double-layer membrane 8, with one side open and the other side closed, forms a U-shaped cross-section, which can more conveniently wrap the toothed rod 7 and perform membrane replacement operations.

[0035] As a further preferred embodiment, the device also includes a membrane divider 9, which is fixed to the side of the toothed rod 7 facing the membrane roll 1 and positioned between the double-layer membranes 8. Due to air pressure or viscous substances, the openings of the double-layer membranes 8 may not easily separate when wrapping the toothed rod 7, potentially causing membrane tearing during membrane replacement or causing contaminants such as saliva to be ejected due to the strong tension of the membranes. The membrane divider 9 can separate the double-layer membranes 8 in advance, reducing the membrane tension and preventing tearing and other malfunctions.

[0036] This embodiment also includes a fixed base 4 and a rotating shaft 5. One end of the rotating shaft 5 is fixedly connected to the roller 3, and the rotating shaft 5 is rotatably connected to the fixed base 4. A handle 6 is also included, with the other end of the rotating shaft 5 fixedly connected to the handle 6. The diameter of the handle 6 is larger than the diameter of the rotating shaft 5, and the outer circumference of the handle 6 is provided with anti-slip patterns. After the dental X-ray machine has been used, medical personnel can manually rotate the handle 6 on the side of the empty roll 2, thereby driving the roller 3 connected to the rotating shaft 5 to rotate, completing the film replacement operation. The fixed base 4 fixes the film roll 1 and the empty roll 2 at the same height, which is beneficial for the film replacement process of the double-layer film 8.

[0037] In one embodiment, the winding roller 3 includes a driving roller and a driven roller. The driving roller is fixedly connected to the empty roll 2, and the driven roller is fixedly connected to the film roll 1. The rotation shaft 5 of the driving roller is connected to a motor, and the rotation direction of the driving roller is consistent with the unwinding direction of the film roll 1. The motor drives the driving roller to rotate, thereby causing the empty roll 2 to pull the double-layer film 8, and the film roll 1 on the driven roller is unwound accordingly, thus completing continuous film changing. In this embodiment, the motor movement time is consistent with the film changing time, ensuring that the middle position of the film segment is located at the toothed bar 7.

[0038] In a further preferred embodiment, the fixed base 4 is further provided with a damping block 11, which abuts against the rotating shaft 5. When the motor stops outputting, the damping block 11 acts as a brake, preventing the driven roller from unwinding excessively due to rotational inertia. This embodiment also includes an adjusting rod 10, which is connected to the damping block 11. The fixed base 4 has a groove 401, and the damping block 11 is disposed within the groove 401, with the thickness of the damping block 11 being less than the height of the groove 401. The adjusting rod 10 adjusts the height of the damping block 11, thereby adjusting the braking force.

[0039] Preferably, the interiors of the film roll 1 and the empty roll 2 are hollow, and the roller 3 passes through them. The roller 3 includes a fixed part 301 and a movable part 302, which are connected by a spring 303. Compressing the spring 303 presses the fixed part 301 and the movable part 302 together, minimizing the diameter of the roller 3. After placing the film roll 1 or the empty roll 2 on the roller 3, releasing the spring 303 allows the fixed part 301 and the movable part 302 to open, thus fixing the film roll 1 or the empty roll 2. In this embodiment, three springs 303 are provided between the fixed part 301 and the movable part 302 to ensure stable spring force.

[0040] This utility model also provides a dental X-ray machine, including the continuous film changing device as described above, and also includes a head fixator and a support plate. The head fixator is connected to the continuous film changing device, and the support plate is fixed in front of the toothed bar 7. The distance between the support plate and the toothed bar 7 is the same as the height of the patient's mandible.

[0041] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A continuous film replacing device characterized by comprising: It includes a toothed bar, a film roll, an empty roll, and two rollers. The two rollers are fixed to each other on both sides of the toothed bar. The film roll is fixed on the roller on one side of the toothed bar, and the empty roll is fixed on the roller on the other side of the toothed bar. The film of the film roll wraps around the toothed bar in a U-shape from the upper and lower sides respectively. The film is slidably connected to the toothed bar, and the end of the film is fixedly connected to the empty roll.

2. The continuous film changer according to claim 1, wherein The membrane is a double-layer membrane, with one side open and the other side closed, and the double membrane is located on the upper and lower sides of the toothed rod respectively.

3. The continuous film changer as claimed in claim 2, wherein It also includes a membrane divider, which is fixed on the side of the toothed bar facing the membrane roll and placed between the two membrane layers.

4. The continuous film changer of claim 1, wherein It also includes a fixed base and a rotating shaft, one end of which is fixedly connected to the roller, and the rotating shaft is rotatably connected to the fixed base.

5. The continuous film changer as claimed in claim 4, wherein It also includes a handle, the other end of which is fixedly connected to the handle. The diameter of the handle is larger than that of the rotating shaft, and the outer circumference of the handle is provided with anti-slip patterns.

6. The continuous film changer of claim 4, wherein The winding roller includes a drive roller and a driven roller. The drive roller is fixedly connected to the empty roll, and the driven roller is fixedly connected to the film roll. The rotation shaft of the drive roller is connected to a motor, and the rotation direction of the drive roller is consistent with the unwinding direction of the film roll.

7. The continuous film changing device according to claim 5 or 6, characterized in that, The fixed base is also provided with a damping block, which abuts against the rotating shaft.

8. The continuous film changing device according to claim 7, characterized in that, It also includes an adjusting rod, which is connected to the damping block. The fixed base has a groove, and the damping block is disposed in the groove. The thickness of the damping block is less than the height of the groove.

9. The continuous film changing device according to claim 1, characterized in that, The film roll and the empty roll are hollow inside, and the roller passes through them. The roller includes a fixed part and a movable part, and the fixed part and the movable part are connected by a spring.

10. A dental X-ray machine, characterized in that, The continuous membrane changing device as described in any one of claims 1-9 further includes a head fixator and a support plate, wherein the head fixator is connected to the continuous membrane changing device, the support plate is fixed in front of the toothed bar, and the distance between the support plate and the toothed bar is the same as the height of the patient's mandible.

Images