Top hanging type swing rod for oral treatment machine

Abstract

The utility model discloses a top hanging type swing rod for an oral cavity treatment machine, which comprises a fixed base, a first swing rod is connected to the surface of the fixed base, a second swing rod is arranged at one end of the first swing rod, a silica gel sheath is connected between the first swing rod and the second swing rod, and a pneumatic switch is connected in the fixed base through a fixed support. A swing assembly is arranged in the first swing rod and the silica gel protective sleeve, the large spring drives the small spring sliding rod to slide and reset in the swing rod supporting rod after resetting and rebounding and makes contact with the pneumatic switch to enable the pneumatic switch to be turned off, the pneumatic switch is integrated on the swing rod, and gas on-off is directly controlled through the swing assembly of the swing rod; according to the utility model, gas driving control of treatment tools such as a dental drill or a spray gun connected to the swing rod can be realized only by holding the swing rod with a hand and performing normal swing action, and a gas control button or a valve at a fixed position on the treatment machine does not need to be distracted to find and operate, so that the convenience and the smoothness of operation are greatly improved, and the operation is relatively convenient.

Description

Technical Field

[0001] This utility model belongs to the field of dental treatment machine technology, specifically relating to a hanging swing arm for a dental treatment machine. Background Technology

[0002] Dental treatment machines are essential equipment in dental clinics. Throughout the dental treatment process, they serve as the device that carries the patient. Dental treatment machines typically use a top-suspended swing arm design, on which tools such as gas-driven dental drills or spray guns can be connected. The swing arm is connected to the top support or crossbeam of the treatment machine through a special connector. This suspension method allows the swing arm to move the tools of the dental treatment machine freely within a certain range, providing flexible operating space for dental instruments.

[0003] In order to further improve the flexibility and adaptability of the swing arm, the existing hanging swing arm is usually designed with multiple joints. These joints are usually flexible joints. Through soft connection and spring cooperation, the swing arm can bend and swing flexibly. The dental drill or spray gun treatment tools driven by the swing arm need to be gas driven. However, the gas drive control switch of these tools is usually fixed on the dental treatment machine. This requires the doctor to be distracted during the treatment to find and operate the gas control button or valve. This not only increases the difficulty of operation, but may also lead to untimely or inaccurate gas supply control, which is quite inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a hanging swing arm for a dental treatment machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hanging swing arm for a dental treatment machine, comprising:

[0006] A fixed base is provided, with a first swing arm connected to its surface. A second swing arm is provided at one end of the first swing arm, and a silicone sleeve is connected between the first and second swing arms. A pneumatic switch is connected inside the fixed base via a fixed bracket. A swing assembly for controlling the on / off state of the pneumatic switch is provided inside the first swing arm and the silicone sleeve. When the large spring of the swing assembly is bent and compressed, it pulls the small spring sliding rod to slide inside the swing arm support rod, so that one end of the small spring sliding rod is disengaged from the pneumatic switch, thereby opening the pneumatic switch.

[0007] After the large spring returns to its original position, it drives the small spring sliding rod to slide back to its original position within the rocker arm support rod, and then contacts the pneumatic switch to close it.

[0008] Preferably, the swing assembly includes nylon spring strips and spring plates, the swing arm support rods are provided in two sets and are both located inside the first swing arm, the large springs are provided in two sets and the two ends of the two sets of large springs are fitted with fixing pins.

[0009] Preferably, the other ends of the two sets of fixing pins are connected to the second swing arm and the swing arm support rod, respectively.

[0010] Preferably, one end of the small spring sliding rod is connected to the fixed pin, and the other end extends through one of the large springs and the fixed pin and then into the swing arm support rod.

[0011] Preferably, the two ends of the nylon spring strip are sleeved on the surfaces of two sets of fixing pins, and the spring sheet is disposed on the surface of the nylon spring strip.

[0012] Preferably, the top of the second swing arm is connected to a pulley frame, and a pulley is rotatably connected to the surface of the pulley frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By integrating the pneumatic switch into the swing arm, the gas flow can be directly controlled by the swing arm's swing component. During operation, the doctor only needs to hold the swing arm and make normal swinging movements to achieve gas drive control of the treatment tools such as dental drills or spray guns connected to the swing arm. There is no need to search for and operate the gas control button or valve in a fixed position on the treatment machine, which greatly improves the convenience and smoothness of operation and is more convenient.

[0015] (2) The pendulum consists of a first pendulum and a second pendulum, which are connected by a silicone sleeve and are equipped with pulleys to allow the pendulum to swing at approximately 150 degrees in the forward and left and right directions at the silicone sleeve, thus providing doctors with convenient operating space. The spring plate has certain elasticity and shape memory characteristics. When it swings backward, its bending direction is opposite to the designed deformation direction. It will be restricted by its own structure and cannot bend smoothly, thus preventing the pendulum from moving backward. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the pneumatic switch and the fixed base of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pneumatic switch of this utility model.

[0020] In the diagram: 1. Fixed base; 2. First swing arm; 3. Second swing arm; 4. Silicone sheath; 5. Pneumatic switch; 6. Large spring; 7. Small spring sliding rod; 8. Swing arm support rod; 9. Nylon spring strip; 10. Spring plate; 11. Fixing pin; 12. Pulley frame; 13. Pulley; 14. Fixed bracket; 15. Valve core. Detailed Implementation

[0021] 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.

[0022] This utility model provides, for example Figure 1-4 The above-disc swing arm for a dental treatment machine includes:

[0023] A fixed base 1 is provided, and a first swing rod 2 is connected to the surface of the fixed base 1. A second swing rod 3 is provided at one end of the first swing rod 2, and a silicone sleeve 4 is connected between the first swing rod 2 and the second swing rod 3. A pneumatic switch 5 is connected inside the fixed base 1 through a fixed bracket 14. A swing assembly for controlling the opening and closing of the pneumatic switch 5 is provided inside the first swing rod 2 and the silicone sleeve 4. When the large spring 6 of the swing assembly is bent and compressed, it pulls the small spring sliding rod 7 to slide inside the swing rod support rod 8, so that one end of the small spring sliding rod 7 is disengaged from the pneumatic switch 5, thereby opening the pneumatic switch 5.

[0024] After the large spring 6 returns to its original position, it drives the small spring sliding rod 7 to slide back to its original position within the rocker arm support rod 8, and then contacts the pneumatic switch 5 to close the pneumatic switch 5.

[0025] The swing assembly includes a nylon spring strip 9 and a spring sheet 10. The swing arm support rod 8 is provided in two sets and is located inside the first swing arm 2. The large spring 6 is provided in two sets and both ends of the two sets of large springs 6 are fitted with fixing pins 11.

[0026] The other ends of the two sets of fixing pins 11 are connected to the second swing arm 3 and the swing arm support rod 8, respectively.

[0027] One end of the small spring sliding rod 7 is connected to the fixed pin 11, and the other end extends through a set of large springs 6 and the fixed pin 11 and then into the swing arm support rod 8.

[0028] The two ends of the nylon spring strip 9 are sleeved on the surfaces of two sets of fixing pins 11, and the spring sheet 10 is disposed on the surface of the nylon spring strip 9. The elasticity and shape memory characteristics of the spring sheet 10 prevent the swing arm from swinging backward.

[0029] The top of the second swing arm 3 is connected to a pulley frame 12, and a pulley 13 is rotatably connected to the surface of the pulley frame 12.

[0030] This dental treatment machine uses an overhead swing arm. In the initial state, the swing arm is in a stationary position, the large spring 6 is in a natural state, and the small spring sliding rod 7 is in the initial position inside the swing arm support rod 8. One end of the rod is in contact with the pneumatic switch 5, so that the pneumatic switch 5 is in the closed state. At this time, the gas cannot flow through the pneumatic switch 5 to the treatment tool (dental drill or spray gun).

[0031] When a doctor needs to use a treatment tool, since the tool's tubing is wound around the surface of pulley 13, pulling the tool and moving the tubing can apply external force to the swing arm, pulling the second swing arm 3 to move. Since one end of the second swing arm 3 is connected to the silicone sleeve 4, the second swing arm 3 can swing forward or left and right through the silicone sleeve 4. Since the second swing arm 3 is connected to the fixing pin 11 at one end of the large spring 6, the movement of the second swing arm 3 causes the large spring 6 inside the silicone sleeve 4 to bend and compress. Since the bending radius of the large spring 6 and the small spring sliding rod 7 is different, during the bending and compression process, the large spring 6 pulls the small spring sliding rod 7 to slide inside the swing arm support rod 8 through the fixing pin 11. During the sliding process, one end of the small spring sliding rod 7 gradually disengages from the pneumatic switch 5. When it disengages to a certain extent, the valve core 15 inside the pneumatic switch 5 opens the gas passage. Gas flows from the gas source through the connecting pipe to the pneumatic switch 5, and then through the tubing to the treatment tool, thereby providing gas power to the treatment tool and enabling it to start working.

[0032] When the treatment is completed or the doctor needs to stop the gas supply, the treatment tool is released. The large spring 6 begins to return to its original position under its own elastic restoring force. The return of the large spring 6 causes the fixing pin 11 to move in the opposite direction, which in turn pushes the small spring sliding rod 7 to slide in the opposite direction within the swing arm support rod 8, so that one end of it re-contacts the pneumatic switch 5. After the small spring sliding rod 7 contacts the pneumatic switch 5, it pushes the valve core 15 of the pneumatic switch 5 back to the closed position, cuts off the gas channel, stops the gas supply, and the treatment tool stops working.

[0033] The nylon spring strip 9 and spring plate 10 in the swing assembly play an auxiliary role in orientation and stability during the swing of the swing arm. The two ends of the nylon spring strip 9 are sleeved on the surface of the fixing pin 11, and the spring plate 10 is set on the surface of the nylon spring strip 9. Together, they can limit the swing direction of the swing arm, so that the swing arm can only swing forward and left and right at an angle of about 150 degrees each. Under the elasticity and shape memory characteristics of the spring plate 10, the swing arm cannot swing backward, ensuring the predictability and stability of the swing arm movement, which is beneficial to the doctor's accurate operation.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hanging swing arm for a dental treatment machine, characterized in that, include: A fixed base (1) is provided with a first swing rod (2) connected to the surface of the fixed base (1). A second swing rod (3) is provided at one end of the first swing rod (2) and a silicone sleeve (4) is connected between the first swing rod (2) and the second swing rod (3). A pneumatic switch (5) is connected inside the fixed base (1) through a fixed bracket (14). A swing assembly for controlling the opening and closing of the pneumatic switch (5) is provided inside the first swing rod (2) and the silicone sleeve (4). When the large spring (6) of the swing assembly is bent and compressed, it pulls the small spring sliding rod (7) to slide inside the swing rod support rod (8) so that one end of the small spring sliding rod (7) is disengaged from the pneumatic switch (5) and the pneumatic switch (5) is opened. After the large spring (6) returns to its original position, it drives the small spring sliding rod (7) to slide back to its original position within the swing arm support rod (8) and contact the pneumatic switch (5) to close the pneumatic switch (5).

2. The hanging swing arm for a dental treatment machine according to claim 1, characterized in that: The swing assembly includes a nylon spring strip (9) and a spring sheet (10). The swing arm support rod (8) is provided in two sets and is located inside the first swing arm (2). The large spring (6) is provided in two sets and both ends of the two sets of large springs (6) are fitted with fixing pins (11).

3. The hanging swing arm for a dental treatment machine according to claim 2, characterized in that: The other ends of the two sets of fixing pins (11) are connected to the second swing rod (3) and the swing rod support rod (8), respectively.

4. The hanging swing arm for a dental treatment machine according to claim 2, characterized in that: One end of the small spring sliding rod (7) is connected to the fixed pin (11), and the other end extends into the swing rod support rod (8) after passing through a set of large springs (6) and the fixed pin (11).

5. The hanging swing arm for a dental treatment machine according to claim 2, characterized in that: The two ends of the nylon spring strip (9) are sleeved on the surfaces of two sets of fixing pins (11), and the spring sheet (10) is disposed on the surface of the nylon spring strip (9).

6. The hanging swing arm for a dental treatment machine according to claim 1, characterized in that: The top of the second rocker arm (3) is connected to a pulley frame (12), and a pulley (13) is rotatably connected to the surface of the pulley frame (12).

Images