Fixing device for filing needle

Abstract

The utility model provides a fixing device for a filing needle. The fixing device comprises a mounting plate, a mounting frame and a limiting structure, the mounting plate used for mounting a file expanding needle is rotationally connected with the U-shaped mounting frame, and the limiting structure is used for limiting the relative position of the mounting plate and the mounting frame; by arranging the limiting structure used for limiting the relative position of the mounting plate and the mounting frame, the mounting plate and the mounting frame can be relatively fixed, and therefore the problem that when the high-pressure water gun conducts flushing and disinfection, the mounting plate and the mounting frame rotate relatively, and consequently the file expanding needle falls off can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of root canal treatment equipment, in particular to a fixing device for an expansion file needle. Background Art

[0002] Root canal therapy is the most effective treatment for pulp disease and periapical periodontitis. Reaming needles are widely used in clinical root canal therapy. They have the characteristics of good root canal shaping effect and high preparation efficiency.

[0003] Due to the high cost of the instruments, they need to be disinfected and used repeatedly in clinical practice. According to literature records, the service life of each expansion needle does not exceed 20 times on average. Clinically, expansion needles have been fatigued and broken during use. After the instrument breaks, some of the broken parts remain in the root canal, causing part of the root canal to be blocked and unable to be cleaned, leaving a large amount of bacteria, which can easily lead to treatment failure and increase the patient's pain.

[0004] At present, there is a kind of expansion needle display stand in clinical practice, which can be used to place expansion needles, so that the instruments are easy to take during use and easy to clean after use. For example, the patent with application number 201521106735.9 includes a frame body, the frame body is provided with a slot for placing root canal files, the frame body is provided with a counting mechanism for indicating the number of times the root canal files are used, and the position of the counting mechanism corresponds to the position of the slot; the counting mechanism includes a ones wheel, a tens wheel and a rotating shaft fixed on the frame body at both ends, the ones wheel and the tens wheel are rotatably mounted on the rotating shaft; the ones wheel and the tens wheel are respectively provided with digital identifications of 0-9.

[0005] The root canal file holder is improved on the existing root canal file holder, and the counting mechanism is arranged on the holder. When in use, the number of times the root canal file is used can be recorded by simply rotating the ones wheel and the tens wheel corresponding to the slot, and the operation is simple and convenient.

[0006] However, the above design has the following problems: after use, the expansion needle is generally cleaned and disinfected by flushing with a high-pressure water gun. Since there is no limiting structure between the frame and the door cover, when the high-pressure water gun impacts the frame and the door cover, it is easy to cause the two to rotate relative to each other, thereby causing the expansion needle installed between the two to fall off. The fallen expansion needle is not easy to find on the one hand, and is also easily damaged on the other.

[0007] The utility model aims to provide a fixing device for a file expansion needle to solve the problems mentioned in the above background technology. Utility Model Content

[0008] To achieve the above-mentioned purpose, the utility model provides a fixing device for an expansion and filing needle, comprising a mounting plate, a mounting frame and a limiting structure; the mounting plate used for mounting the expansion and filing needle is rotatably connected to the U-shaped mounting frame, and the limiting structure is used to limit the relative position of the mounting plate and the mounting frame.

[0009] Preferably, the left and right sides of the mounting plate are respectively provided with inwardly recessed mounting grooves, and both ends of the mounting frame respectively inserted into the mounting grooves are rotatably connected to the mounting plate through a rotating shaft, and the limiting structure includes a limiting groove and a limiting plate that cooperate with each other, the limiting groove is arranged at the lower end of the front end surface of the mounting groove, and the lower end of the limiting groove extends out of the lower end surface of the mounting plate, and the limiting plate is located at the lower end of the front end surface of the mounting frame.

[0010] Preferably, the limiting structure further includes at least one pair of mutually matching protrusions and clamping holes, and the protrusions and the clamping holes are respectively arranged on the side of the mounting groove and the two ends of the mounting frame that are close to the mounting groove.

[0011] Preferably, a counting device is also included.

[0012] Preferably, the rear end face of the mounting frame is provided with a forwardly recessed rectangular groove, the counting device comprises a counting disk and a fixing device, the middle parts of the left and right ends of the counting disk are rotatably installed in the rectangular groove via a rotating shaft, and the fixing device is used to fix the counting disk relative to the rectangular groove.

[0013] Preferably, the fixing device includes a plurality of fixing holes, a plurality of latch rods and a spring arranged at the left and right ends of the counting disk, the left and right walls of the rectangular groove are symmetrically provided with a plurality of latch holes, the latch rods are movably installed in the latch holes, the two ends of the spring are respectively fixedly connected to the latch holes and the latch rods, and the front end of the latch rod and the cross-section of the fixing hole are both arc-shaped.

[0014] Preferably, a limiting hole is provided in the latch hole, and one end of the latch rod extending into the limiting hole is provided with a limiting ring that cooperates with the limiting hole.

[0015] Preferably, the rear end surface of the mounting frame is provided with a cover plate groove corresponding one-to-one to the rectangular groove, and a rotatable sealing plate is provided in the cover plate groove.

[0016] Preferably, the sealing plate is provided with a viewing port for displaying the counting disk reading.

[0017] Preferably, a handle is provided on the rear end surface of the sealing plate.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] By providing a limiting structure for limiting the relative position of the mounting plate and the mounting frame, the mounting plate and the mounting frame can be relatively fixed, thereby preventing the mounting plate and the mounting frame from rotating relative to each other and causing the expansion needle to fall off during flushing and disinfection with a high-pressure water gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a fixing device for a file expansion needle of the utility model;

[0021] Figure 2 It is a side view of the mounting plate of the utility model;

[0022] Figure 3 It is a side view of the mounting frame of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the counting device of the utility model;

[0024] Figure 5 for Figure 4 A magnified view of area A in;

[0025] Figure 6 It is an enlarged view of the sealing plate of the utility model;

[0026] Figure 7 It is a three-dimensional structural diagram of the counting disk of the utility model.

[0027] In the figure: 1. mounting plate; 11. mounting groove; 2. mounting frame; 21. cover plate groove; 22. sealing plate; 221. observation port; 222. handle; 3. limiting structure; 31. limiting groove; 32. limiting plate; 33. convex point; 34. clamping hole; 4. counting device; 41. rectangular groove; 42. counting disk; 5. fixing device; 51. fixing hole; 52. latch rod; 521. limiting ring; 53. spring; 54. latch hole; 541. limiting hole. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1

[0033] See also Figure 1-7 A fixing device for an expansion and filing needle comprises a mounting plate 1, a mounting frame 2 and a limiting structure 3; the mounting plate 1 for mounting the expansion and filing needle is rotatably connected to the U-shaped mounting frame 2, and the limiting structure 3 is used to limit the relative positions of the mounting plate 1 and the mounting frame 2.

[0034] Please pay attention to Figure 2 , Figure 3 , the left and right sides of the mounting plate 1 are respectively provided with mounting grooves 11 recessed inwards, and both ends of the mounting frame 2 respectively inserted into the mounting grooves 11 are rotatably connected with the mounting plate 1 through a rotating shaft, and the limiting structure 3 includes a limiting groove 31 and a limiting plate 32 that cooperate with each other, the limiting groove 31 is arranged at the lower end of the front end surface of the mounting groove 11, and the lower end of the limiting groove 31 extends out of the lower end surface of the mounting plate 1, and the limiting plate 32 is located at the lower end of the front end surface of the mounting frame 2. By arranging the limiting groove 31 in the mounting groove 11 and cooperating with the limiting plate 32 arranged on the front end surface of the mounting frame 2, when the high-pressure water gun impacts the mounting plate 1 or the mounting frame 2, the upper end surface of the limiting plate 32 can support the upper wall of the limiting groove 31 to prevent the two from rotating relative to each other;

[0035] By providing at least one pair of mutually matching protrusions 33 and locking holes 34 , the mounting frame 2 and the mounting plate 1 can be further relatively fixed.

[0036] Please pay attention to Figure 4 , Figure 5 , Figure 6 , Figure 7By setting the counting device 4, the number of times the expansion needle is used can be conveniently counted; by setting the fixing device 5 to cooperate with the counting disk 42, the counting disk 42 can be fixed relative to the rectangular groove 41 to prevent the counting disk 42 from rotating, thereby avoiding the situation where the data recorded on the counting disk 42 does not match the actual number of times used; by setting the fixing hole 51, the latch rod 52 and the spring 53, the latch rod 52 can be pushed by the spring 53 to be inserted into the fixing hole 51, so that the counting disk 42 is relatively fixed; by setting the front end of the latch rod 52 and the cross section of the fixing hole 51 to be arc-shaped, when the counting disk 42 needs to be rotated, The arc-shaped guide drives the latch rod 52 into the latch hole 54, thereby disengaging from the fixing hole 51, and realizing the rotation of the counting disk 42; by setting the limiting hole 541 and the limiting ring 521, the latch rod 52 can be prevented from falling out of the latch hole 54: by providing a rotatable sealing plate 22 in the cover plate groove 21 corresponding to the rectangular groove 41, the rectangular groove 41 can be sealed to prevent the counting disk 42 from being accidentally touched; by providing an observation port 221 on the sealing plate 22, the number of times the expansion needle is used recorded on the counting disk 42 can be easily observed; by providing a handle 222, the sealing plate 22 can be easily pulled.

[0037] The specific operation method of the first embodiment of the utility model is as follows:

[0038] After installing the expansion needle into the corresponding storage hole on the mounting plate 1, pull the mounting frame 2 downward so that the rear end of the expansion needle is supported by the mounting frame 2. When using a high-pressure water gun for cleaning, the cooperation between the limiting plate 32 and the limiting groove 31, and the cooperation between the clamping hole 34 and the protrusion 33 can prevent the mounting frame 2 and the mounting plate 1 from rotating relative to each other, thereby preventing the expansion needle from being washed away.

[0039] After using the expander needle, push the handle 222 upward, the handle 222 drives the sealing plate 22 to rotate upward, thereby opening the sealed rectangular groove 41, and the counting disk 42 is rotated upward. The arc-shaped fixing hole 51 drives the latch rod 52 to move into the latch hole 54, so that the latch rod 52 is separated from the fixing hole 51. At this time, the spring 53 is compressed, and after rotating a predetermined distance (the number of fixing holes 51 and latch rods 52 that cooperate with each other in the utility model is ten, so as to ensure that after each rotation of the counting disk 42, a number one larger than the last displayed number is displayed on the observation port 221), the spring 53 restores its deformation, drives the latch rod 52 to insert into the fixing hole 51, and after completing the counting, push the sealing plate 22 downward to fit into the cover plate groove 21, thereby sealing the rectangular groove 41.

[0040] It should be noted that the counting disks 42 are arranged in two groups, and the maximum value that can be counted by using the two groups together is ninety-nine. The life span of a set of expansion needles is about twenty times, which can fully meet the counting requirements.

[0041] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A fixing device for a file expansion needle, characterized in that: It comprises a mounting plate (1), a mounting frame (2) and a limiting structure (3); The mounting plate (1) for mounting the expansion needle is rotatably connected to the U-shaped mounting frame (2); the limiting structure (3) is used to limit the relative position of the mounting plate (1) and the mounting frame (2); the left and right sides of the mounting plate (1) are respectively provided with inwardly recessed mounting grooves (11); both ends of the mounting frame (2) respectively inserted into the mounting grooves (11) are rotatably connected to the mounting plate (1) via a rotating shaft; the limiting structure (3) comprises a limiting groove (31) and a limiting plate (32) that cooperate with each other; the limiting groove (31) is arranged at the lower end of the front end surface of the mounting groove (11), and the lower end of the limiting groove (31) extends out of the lower end surface of the mounting plate (1); the limiting plate (32) is located at the lower end of the front end surface of the mounting frame (2).

2. A fixing device for a file expansion needle according to claim 1, characterized in that: The limiting structure (3) further comprises at least one pair of mutually matching protrusions (33) and clamping holes (34), wherein the protrusions (33) and the clamping holes (34) are respectively arranged on the side of the two ends of the installation slot (11) and the installation frame (2) close to the installation slot (11).

3. A fixing device for a file expansion needle according to claim 1, characterized in that: It also includes a counting device (4).

4. A fixing device for a file expansion needle according to claim 3, characterized in that: The rear end surface of the mounting frame (2) is provided with a forwardly recessed rectangular groove (41); the counting device (4) comprises a counting disk (42) and a fixing device (5); the middle parts of the left and right ends of the counting disk (42) are rotatably mounted in the rectangular groove (41) via a rotating shaft; and the fixing device (5) is used to fix the counting disk (42) relative to the rectangular groove (41).

5. A fixing device for a file expansion needle according to claim 4, characterized in that: The fixing device (5) comprises a plurality of fixing holes (51) arranged at the left and right ends of the counting disk (42), a plurality of latch rods (52) and a spring (53); the left and right walls of the rectangular slot (41) are symmetrically provided with a plurality of latch holes (54); the latch rods (52) are movably mounted in the latch holes (54); the two ends of the spring (53) are respectively fixedly connected to the latch holes (54) and the latch rods (52); and the front end of the latch rod (52) and the cross section of the fixing hole (51) are both arc-shaped.

6. A fixing device for a file expansion needle according to claim 5, characterized in that: A limiting hole (541) is provided in the latch hole (54), and a limiting ring (521) matching with the limiting hole (541) is provided at one end of the latch rod (52) extending into the limiting hole (541).

7. A fixing device for a file expansion needle according to claim 6, characterized in that: The rear end surface of the mounting frame (2) is provided with a cover plate groove (21) corresponding to the rectangular groove (41) one by one, and a rotatable sealing plate (22) is provided in the cover plate groove (21).

8. A fixing device for a file expansion needle according to claim 7, characterized in that: The sealing plate (22) is provided with a viewing port (221) for displaying the reading of the counting disk (42).

9. A fixing device for a file expansion needle according to claim 8, characterized in that: A handle (222) is provided on the rear end surface of the sealing plate (22).

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