Upper hanging rod

Abstract

This utility model relates to the field of dental treatment machine technology, and in particular to an upper hanging rod, which includes a pull rod, a folding assembly, and a swing arm. One end of the pull rod is fixed to the instrument tray; the folding assembly includes a flexible folding sleeve and two elastic elements. One end of the folding sleeve is detachably connected to the other end of the pull rod, and the other end of the folding sleeve is detachably connected to one end of the swing arm, the other end of which supports the handpiece's tubing. The folding sleeve has a through-hole mounting groove on both sides along its length, and each mounting groove contains an elastic element. Pulling the tubing moves the swing arm; under external tension and the action of the elastic elements, the swing arm can fold towards the pull rod to adapt to different working positions of the handpiece. The elastic elements are inserted into the corresponding mounting grooves, resulting in high processing efficiency and even higher installation and disassembly efficiency. The presence of an elastic element on each side of the folding sleeve increases load-bearing strength, reduces the quality requirements of the elastic elements, and saves costs.

Description

Technical Field

[0001] This utility model relates to the field of dental treatment machine technology, and in particular to an upper hanging rod. Background Technology

[0002] Dental treatment machines come in a variety of structures and shapes, and the requirements for instrument operation are becoming increasingly comprehensive and convenient. During oral treatment, the unique structure and operating principles of dental equipment, especially in terms of usage, limit the dentist's operating space. Hanging instrument trays are used to hold instruments such as handpieces; the dentist needs to pull a lever to extend these instruments to the vicinity of the patient's mouth for easier operation.

[0003] Existing hanging instrument trays have a folding mechanism at the bend of the pull rod for resetting. A spring is located in the center of this mechanism and is fixed in place by injection molding. This central spring has high load-bearing capacity, requiring high-quality springs and resulting in higher costs. Furthermore, the injection molding adhesive can easily seep into the spring's gaps, affecting its performance and making replacement and maintenance complex. Utility Model Content

[0004] In order to address the technical deficiencies mentioned in the background section, the purpose of this utility model is to provide an upper hanging rod.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hanging rod includes a pull rod, a folding assembly, and a swing arm; one end of the pull rod is fixed to an instrument tray; the folding assembly includes a flexible folding sleeve and two elastic elements; one end of the folding sleeve is detachably connected to the other end of the pull rod, and the other end of the folding sleeve is detachably connected to one end of the swing arm, the other end of the swing arm being used to support a mobile phone tube; the folding sleeve has a through-hole mounting groove on both sides along its length, and one of the elastic elements is placed in each mounting groove.

[0007] By adopting the above technical solution, pulling the pipe can drive the swing arm to move. Under the action of external tension and the elastic element, the swing arm can fold towards the pull rod to adapt to different working positions of the mobile phone. Moreover, the elastic element, due to the properties of its elastic material, can swing in a small range in the horizontal direction to more accurately adjust the position of the mobile phone. The structure is simple, flexible in use, and has stronger compatibility. The elastic element is inserted into the corresponding mounting slot, resulting in high processing efficiency and even higher installation and disassembly efficiency. An elastic element is provided on both sides of the folding sleeve, which can improve the load-bearing strength and has lower quality requirements for the elastic element, saving costs.

[0008] Furthermore, a fixing groove is provided at both ends of the folding sleeve. The folding assembly also includes two connecting pieces, with one connecting piece fixed in each fixing groove. The other end of one connecting piece is inserted into the other end of the pull rod and fixedly connected by a screw, while the other end of the other connecting piece is inserted into one end of the swing arm and fixedly connected by a screw, resulting in higher installation and disassembly efficiency and a more stable connection.

[0009] Furthermore, the central axis of the fixing groove is offset from the central axis of the folding sleeve and is located on the side of the folding sleeve away from the bending direction. This helps to ensure the thickness of the folding sleeve on the bending side of the connecting piece and extend its service life.

[0010] Furthermore, the elastic element is configured as a spring structure, which is simple in structure, has a greater degree of bending, and improves the usability of the mobile phone.

[0011] Furthermore, each of the pull rod and the swing rod has a slot at one end relative to the mounting groove, and both ends of the elastic element are located in the corresponding slots, which facilitates fixing the elastic element and prevents it from shifting.

[0012] Furthermore, the end face area of ​​the slot is smaller than that of the mounting groove, making the snap-fit ​​installation more convenient.

[0013] Furthermore, a first connecting portion protrudes from one end of the pull rod, and a second connecting portion protrudes from one end of the swing arm. The ends of the first connecting portion and the second connecting portion are fitted together. The lower surfaces of both the first and second connecting portions are fitted together with the upper surface of the folding sleeve, preventing the folding sleeve from bending in the opposite direction.

[0014] Furthermore, a support block is provided protruding from the end of the second connecting part along its length direction, and a cover plate is provided protruding from the first connecting part. The cover plate covers the upper surface of the support block, and a gap is provided between the end face of the support block and the inner side of the cover plate to avoid mutual interference when bending or resetting, making it more convenient to use.

[0015] Furthermore, the cross-section of the folding sleeve along its width is configured as an arc shape, with one side of the folding sleeve protruding towards the first connecting portion and the other side recessed. The inner surfaces of both the first and second connecting portions are recessed to fit the outer surface of the folding sleeve, ensuring accurate repositioning of the swing arm and preventing displacement of the swing arm and the folding sleeve.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] This invention uses a pull tube to drive a swing arm. Under external tension and the action of an elastic element, the swing arm can fold towards the pull rod to adapt to different working positions of the mobile phone. Furthermore, the elastic element, due to the properties of its elastic material, can swing within a small range in the horizontal direction for more precise adjustment of the phone's position. The structure is simple, flexible in use, and has stronger compatibility. The elastic element inserts into the corresponding mounting slot, resulting in high processing efficiency and even higher installation and disassembly efficiency. An elastic element is provided on both sides of the folding sleeve, which can improve the load-bearing strength and reduces the quality requirements of the elastic element, thus saving costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the present invention, in which the upper hanging rod is installed on the instrument tray.

[0019] Figure 2 This is a structural schematic diagram of one embodiment of the upper hanging rod of this utility model.

[0020] Figure 3 This is a front view of one embodiment of the upper hanging rod of this utility model.

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of AA.

[0022] Figure 5 This is a schematic diagram of the structure of one embodiment of the upper hanging rod of this utility model.

[0023] Figure 6 This is a schematic diagram of one embodiment of the folding sleeve of the upper hanging rod of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of one embodiment of the swing arm of the upper hanging rod of this utility model.

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Upper hanging rod; 2. Pull rod; 21. First connecting part; 22. Cover plate; 3. Folding assembly; 31. Folding sleeve; 311. Mounting groove; 312. Fixing groove; 4. Swing rod; 41. Second connecting part; 42. Support block; 5. Slot; 6. Instrument tray. Detailed Implementation

[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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0028] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0029] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0030] The following is in conjunction with the appendix Figure 1-7 The embodiments of this utility model will be described in further detail below.

[0031] A type of hanging rod 1, such as Figure 1 , Figure 2 , Figure 6 As shown, it includes a pull rod 2, a folding assembly 3, and a swing rod 4. One end of the pull rod 2 is fixed to the instrument tray 6. The folding assembly 3 includes a flexible folding sleeve 31 and two elastic elements. One end of the folding sleeve 31 is detachably connected to the other end of the pull rod 2, and the other end of the folding sleeve 31 is detachably connected to one end of the swing rod 4. The other end of the swing rod 4 is used to support the tube of the mobile phone. A through-hole mounting groove 311 is provided on both sides of the folding sleeve 31 along its length, and an elastic element is placed in each mounting groove 311.

[0032] Specifically, pulling the pipe can move the swing arm 4. Under the action of external pulling force and elastic elements, the swing arm 4 can fold relative to the pull rod 2 to adapt to different working positions of the mobile phone. Moreover, due to the properties of its elastic material, the elastic element can swing in a small range in the horizontal direction to more accurately adjust the position of the mobile phone. The structure is simple, flexible in use, and more compatible. The elastic element is inserted into the corresponding mounting slot 311, which has high processing efficiency and higher installation and disassembly efficiency. An elastic element is provided on both sides of the folding sleeve 31, which can improve the load-bearing strength and has lower quality requirements for the elastic element, saving costs. After the force is removed, under the elastic restoring force of the two elastic elements, the folding sleeve drives the swing arm to return to its original position.

[0033] In some embodiments, please refer to Figure 5 , Figure 6 , Figure 7 The folding sleeve 31 has a fixing groove 312 at both ends. The folding assembly 3 also includes two connecting pieces, with one connecting piece fixed in each fixing groove 312. The other end of one connecting piece is inserted into the other end of the pull rod 2 and fixed with screws, while the other end of the other connecting piece is inserted into one end of the swing rod 4 and fixed with screws, resulting in higher installation and disassembly efficiency and a more stable connection. The ends of the connecting pieces connecting the swing rod 4 and the pull rod 2 are both pre-grooved with a groove, allowing the connecting piece to be inserted into the groove and then fixed with screws.

[0034] Specifically, the connecting piece can be a steel sheet structure, and its shape corresponds to that of the folding sleeve 31. A screw hole is provided at the other end of the connecting piece for easy assembly with the pull rod 2 and the swing rod 4. The structure of the connecting piece and the elastic element is not shown in the figure.

[0035] For preferred options, please refer to [the provided text]. Figure 6 The central axis of the fixing groove 312 is parallel and offset from the central axis of the folding sleeve 31, and is located on the side of the folding sleeve 31 away from the bending direction. This helps to ensure the thickness of the folding sleeve 31 on the bending side of the connecting piece and extend its service life.

[0036] Preferably, the elastic element is a spring structure, which is simple in structure, has a greater degree of bending, and improves the usability of the mobile phone. Of course, the elastic element can also be a spring post, spring plunger, or other structures.

[0037] In some embodiments, please refer to Figure 5 , Figure 6 , Figure 7 The pull rod 2 and the swing rod 4 are each provided with a slot 5 at one end relative to the mounting groove 311. Both ends of the elastic element are located in the corresponding slot 5, which facilitates fixing the elastic element and prevents the elastic element from shifting.

[0038] Preferably, the end face area of ​​the slot 5 is smaller than the end face area of ​​the mounting groove 311, making the snap-fit ​​installation more convenient. During installation, the elastic element passes through the corresponding mounting groove 311, and then the two ends of the elastic element protruding from the folding sleeve 31 are inserted and fixed into the corresponding slot 5.

[0039] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 7 The other end of the pull rod 2 has a protruding first connecting part 21, and one end of the swing rod 4 has a protruding second connecting part 41. The end of the first connecting part 21 and the end of the second connecting part 41 are fitted together. The lower surfaces of the first connecting part 21 and the lower surfaces of the second connecting part 41 are fitted together with the upper surface of the folding sleeve 31, which can prevent the folding sleeve 31 from bending in the opposite direction.

[0040] For details, please refer to Figure 4 , Figure 5 , Figure 7 The second connecting part 41 has a support block 42 protruding from its end along its length, and the first connecting part 21 has a cover plate 22 protruding from its end. The cover plate 22 covers the upper surface of the support block 42, and a gap is provided between the end face of the support block 42 and the inner side of the cover plate 22 to avoid interference during bending or resetting, making it more convenient to use. The cross-section of the support block 42 is set as an inverted T-shaped structure. The width of the support block 42 decreases along its length to provide clearance space and prevent interference between the first connecting part 21 and the second connecting part 41 during resetting.

[0041] Preferably, the cross-section of the folding sleeve 31 along its width direction is set as an arc-shaped structure. The side of the folding sleeve 31 facing the first connecting part 21 protrudes, while the other side of the folding sleeve 31 is recessed. The inner surfaces of both the first connecting part 21 and the second connecting part 41 are recessed to fit the outer surface of the folding sleeve 32, which can ensure that the swing arm 4 is accurately reset and prevent the swing arm 4 from shifting away from the folding sleeve 31.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An overhang bar, characterized in that The device includes a pull rod (2), a folding assembly (3), and a swing rod (4); one end of the pull rod (2) is fixed to the instrument tray (6); the folding assembly (3) includes a flexible folding sleeve (31) and two elastic elements; one end of the folding sleeve (31) is detachably connected to the other end of the pull rod (2), and the other end of the folding sleeve (31) is detachably connected to one end of the swing rod (4), and the other end of the swing rod (4) is used to support the pipe of the mobile phone; the folding sleeve (31) is provided with a through mounting groove (311) on both sides along the length direction, and one of the elastic elements is placed in each mounting groove (311).

2. The overhang bar according to claim 1, characterized in that Both ends of the folding sleeve (31) are provided with a fixing groove (312); the folding assembly (3) also includes two connecting pieces, and each fixing groove (312) has a connecting piece fixed in it; one end of the connecting piece is inserted into the other end of the pull rod (2) and fixed by screws, and the other end of the connecting piece is inserted into one end of the swing rod (4) and fixed by screws.

3. The upper hanging rod according to claim 2, characterized in that, The central axis of the fixing groove (312) is parallel and offset from the central axis of the folding sleeve (31), and is located on the side of the folding sleeve (31) away from the bending direction.

4. The upper hanging rod according to claim 1, characterized in that, The elastic element is configured as a spring structure.

5. The upper hanging rod according to claim 1, characterized in that, The pull rod (2) and the swing rod (4) are each provided with a slot (5) at one end of the mounting groove (311), and both ends of the elastic element are located in the corresponding slot (5).

6. The upper hanging rod according to claim 5, characterized in that, The end face area of ​​the slot (5) is smaller than the end face area of ​​the mounting slot (311).

7. The upper hanging rod according to claim 1, characterized in that, The other end of the pull rod (2) is provided with a first connecting part (21), and one end of the swing rod (4) is provided with a second connecting part (41). The end of the first connecting part (21) is fitted and connected to the end of the second connecting part (41). The lower surface of the first connecting part (21) and the lower surface of the second connecting part (41) are both fitted and connected to the upper surface of the folding sleeve (31).

8. The upper hanging rod according to claim 7, characterized in that, The end of the second connecting part (41) is provided with a support block (42) protruding along its length direction, and the first connecting part (21) is provided with a cover plate (22) protruding. The cover plate (22) covers the upper surface of the support block (42), and a gap is provided between the end face of the support block (42) and the inner side of the cover plate (22).

9. The upper hanging rod according to claim 7, characterized in that, The cross-section of the folding sleeve (31) along the width direction is set as an arc structure. The folding sleeve (31) protrudes on one side facing the first connecting part (21), and the other side of the folding sleeve (31) is recessed. The inner surfaces of the first connecting part (21) and the second connecting part (41) are both recessed to fit the outer surface of the folding sleeve (31).

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