A dental three-way gun

Abstract

This utility model discloses a three-way dental gun, including a gun body, a handle, and a quick-connect device. The gun body has a first and a second conduit connecting to the gun head. The bottom of the gun body and the top of the handle are detachably connected. The first conduit forms a first insertion hole on the bottom surface of the gun body, and the second conduit forms a second insertion hole on the bottom surface of the gun body. The quick-connect device contains a third and a fourth conduit. The third conduit has a first insertion part, and the fourth conduit has a second insertion part. When the gun body and handle are connected and clamped to the quick-connect device, the first insertion part is inserted into the first insertion hole for a sealed connection. The third conduit is connected to the first conduit, and the second insertion part is inserted into the second insertion hole for a sealed connection. The fourth conduit is connected to the second conduit. This utility model, through the quick-connect device and its connection to the conduit, and its detachable design, allows for quick installation or removal of the gun body compared to existing technologies, facilitating cleaning and disinfection. The gun body is easy to maintain, repair, and replace, reducing maintenance costs and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dental medical equipment technology, specifically to a dental three-way gun. Background Technology

[0002] Currently, commercially available dental three-way guns consist of a gun body and a handle, which are locked together. The first and second tubing inside the gun body extends directly from the handle. Generally, the first and second tubing are used to spray water, air, or mist from the nozzle, or to suction out oral fluids. Dental three-way guns are typically used in the mouth, and the gun body is close to the oral cavity, requiring prompt cleaning and disinfection after use. However, due to the limitations of the first and second tubing, the gun body is difficult to clean and disinfect independently. Furthermore, if the internal parts of the gun body are damaged, repairing a dental three-way gun is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a dental three-in-one gun that is convenient for sterilization.

[0004] The purpose of this utility model is achieved as follows.

[0005] A dental three-way gun includes a gun body and a handle. The gun body is equipped with a gun head device. The gun body has a first pipe and a second pipe connected to the gun head device. The gun body has a first control valve that controls the on / off state of the first pipe and the gun head device, and a second control valve that controls the on / off state of the second pipe and the gun head device. It also includes a quick-connect device. The bottom of the gun body and the top of the handle are detachably connected. The first pipe forms a first insertion hole on the bottom surface of the gun body, and the second pipe forms a second insertion hole on the bottom surface of the gun body. The quick-connect device has a third pipe and a fourth pipe. The third pipe has a first insertion part, and the fourth pipe has a second insertion part. When the gun body and the handle are connected and clamped to the quick-connect device, the first insertion part is inserted into the first insertion hole for a sealed connection. The third pipe is connected to the first pipe, the second insertion part is inserted into the second insertion hole for a sealed connection, and the fourth pipe is connected to the second pipe.

[0006] Furthermore, the quick-connect device includes a fixed base, a first connecting tube, and a second connecting tube. The inner cavity of the first connecting tube constitutes the third pipeline, and the second connecting tube constitutes the fourth pipeline. The top of the first connecting tube extends out of the top surface of the fixed base to form the first insertion part, the top of the first connecting tube extends out of the bottom surface of the fixed base to form the first connecting part, the top of the second connecting tube extends out of the top surface of the fixed base to form the second insertion part, and the top of the second connecting tube extends out of the bottom surface of the fixed base to form the second connecting part.

[0007] The quick-connect device has a simple structure, making it easy to form a first insertion part and a second insertion part that can be inserted and matched with the gun body. It also facilitates the connection of the first connection part and the second connection part to the corresponding pipelines.

[0008] The first insertion part has a first annular groove on its side, and a first sealing ring is provided in the first annular groove. The first insertion part is inserted into the first insertion hole, and the side wall of the first insertion hole in the first sealing ring abuts and seals. The second insertion part has a second annular groove on its side, and a second sealing ring is provided in the second annular groove. The second insertion part is inserted into the second insertion hole, and the side wall of the second insertion hole in the second sealing ring abuts and seals.

[0009] The sealing structure is reasonably designed. The first and second insertion parts are inserted into the gun body to complete the seal, and the operation is simple.

[0010] The top surface of the fixed base is provided with a first annular groove and a second annular groove corresponding to the first connecting pipe and the second connecting pipe, respectively. A first sealing ring is provided in the first annular groove and a second sealing ring is provided in the second annular groove and the second sealing ring is provided in the second connecting pipe. The first insertion part is inserted into the first insertion hole and the second insertion part is inserted into the second insertion hole. The top surface of the fixed base and the bottom surface of the gun body clamp the first sealing ring and the second sealing ring.

[0011] The sealing structure is reasonably designed, and the quick-connect device for clamping and fixing the gun body and handle completes the sealing, making it easy to operate.

[0012] The bottom of the gun body is provided with a protrusion, the bottom surface of which is provided with the first insertion hole and the second insertion hole. The side of the protrusion is provided with an external thread. The handle is hollow and the top of the inner cavity of the handle is provided with a first step. The side wall of the first step is provided with an internal thread. The protrusion is inserted into the first step, and the external thread and the internal thread are threaded together until the protrusion and the step surface of the first step abut against each other.

[0013] The gun body and handle are easy to assemble and disassemble.

[0014] The top of the inner cavity of the handle has a second step below the first step. The inner diameter of the second step is smaller than that of the first step. The quick-connect device includes a fixing seat. When the gun body and the handle are connected, the fixing seat is fixedly inserted into the handle. The bottom surface of the fixing seat sits on the step surface of the second step, and the top of the fixing seat abuts against the protrusion.

[0015] The quick-connect device is easy to disassemble and easy and secure to install.

[0016] The top of the first insertion part is provided with a first guide surface, and the top of the second insertion part is provided with a second guide surface.

[0017] The first and second insertion parts are quickly inserted into the gun body.

[0018] This invention utilizes a quick-connect device for connection to pipelines. The quick-connect device's design allows for rapid installation and removal of the gun body compared to existing technologies, facilitating cleaning and disinfection. Gun body maintenance, repair, and replacement are convenient, reducing maintenance costs and improving efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the exploded structure of Example 1.

[0020] Figure 2 This is a schematic diagram of the exploded structure of Example 1 (from another perspective).

[0021] Figure 3 This is a cross-sectional structural diagram of Example 1.

[0022] Figure 4 This is a schematic diagram of the exploded structure of Example 2.

[0023] Figure 5 This is a schematic diagram of the exploded structure of Example 2 (another perspective).

[0024] Figure 6 This is a cross-sectional structural diagram of Example 2. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1, see Figure 1-3 As shown, a dental three-way gun includes a gun body 1, a handle 3, and a quick-connect device 2. The gun body 1 has a nozzle device 11, and inside the gun body 1 are a first conduit 4 and a second conduit 5 communicating with the nozzle device 11. The gun body 1 has a first control valve 12 controlling the on / off state of the first conduit 4 and the nozzle device 11, and a second control valve 13 controlling the on / off state of the second conduit 5 and the nozzle device 11. The bottom of the gun body 1 has a protrusion 14, with a first insertion hole 40 and a second insertion hole 50 on its bottom surface, and external threads 15 on its side. The nozzle device 11, the first control valve 12, and the second control valve 13 are all existing dental three-way gun structures and will not be described in detail here. The nozzle device 11 may be used for different functions, such as a high-pressure nozzle, a low-pressure nozzle, or a suction nozzle.

[0027] The handle 3 is hollow. The top of the inner cavity of the handle 3 has a first step 31 and a second step 32 from top to bottom. The side wall of the first step 31 is provided with an internal thread 33. The inner diameter of the second step 32 is smaller than the inner diameter of the first step 31.

[0028] The quick-connect device 2 includes a fixed base 20, a first connecting tube 21, and a second connecting tube 22. The first connecting tube 21 and the second connecting tube 22 are vertically fixed to the fixed base. The inner cavity of the first connecting tube 21 forms the third conduit 6, and the second connecting tube 22 forms the fourth conduit 7. The top of the first connecting tube 21 extends beyond the top surface of the fixed base 20 to form a first insertion portion 61, and the top of the first connecting tube 21 extends beyond the bottom surface of the fixed base 20 to form a first connecting portion 62. The top of the second connecting tube 22 extends beyond the top surface of the fixed base 20 to form a second insertion portion 71, and the top of the second connecting tube 22 extends beyond the bottom surface of the fixed base 20 to form a second connecting portion 72. The first connecting portion 62 and the second connecting portion 72 are used to connect and fix with the conduits passing through the inner cavity of the handle 3.

[0029] In this embodiment, the first insertion part 61 has a first annular groove 23 on its side, and a first sealing ring 8 is provided inside the first annular groove 23. The second insertion part 71 has a second annular groove 24 on its side, and a second sealing ring 9 is provided inside the second annular groove 24. Preferably, the first insertion part 61 has a first guide surface 63 on its top, and the second insertion part 71 has a second guide surface 73 on its top. The first insertion part 61 and the second insertion part 71 are more easily inserted into the corresponding first insertion hole 40 and second insertion hole 50.

[0030] During installation, the fixed insertion part 61 is inserted into the handle 3, and the bottom surface of the fixing seat 20 sits on the stepped surface of the second step part 32. The first insertion part 61 is aligned and inserted into the first insertion hole 40, and the side wall of the first insertion hole 40 inside the first sealing ring 8 abuts and seals. The second insertion part 71 is aligned and inserted into the second insertion hole 50, and the side wall of the second insertion hole 50 inside the second sealing ring 9 abuts and seals. At the same time, the protrusion 14 is inserted into the first step part 31, and the external thread 15 and the internal thread 33 are threaded together until the protrusion 14 and the stepped surface of the first step part 31 abut. When the gun body 1 and the handle 3 are fully connected, the top of the fixing seat 20 abuts against the protrusion 14, that is, the gun body 1 and the handle 3 are connected by the quick-connect clamping device 2. At this time, the third pipe 6 is connected to the first pipe 4, and the fourth pipe 7 and the second pipe 5 are connected. Conversely, the gun body 1 can be disassembled.

[0031] Example 2, see Figure 4-6 As shown, the difference between this embodiment and the first embodiment is that the top surface of the fixing base 20 is provided with a first annular groove 23 and a second annular groove 24 corresponding to the first connecting pipe 21 and the second connecting pipe 22, respectively. The first annular groove 23 is provided with a first sealing ring 8 sleeved on the first connecting pipe 21, and the second annular groove 24 is provided with a second sealing ring 9 sleeved on the second connecting pipe 22.

[0032] During installation, the fixed insert is inserted into the handle 3, with the bottom surface of the fixing seat 20 resting on the stepped surface of the second step portion 32. The first insert portion 61 is aligned and inserted into the first insert hole 40, and the second insert portion 71 is aligned and inserted into the second insert hole 50. Simultaneously, the protrusion 14 is inserted into the first step portion 31, and the external thread 15 and internal thread 33 are threaded together until the protrusion 14 and the stepped surface of the first step portion 31 abut. When the gun body 1 and the handle 3 are fully connected, the top of the fixing seat 20 abuts against the protrusion 14, i.e., the gun body 1 and the handle 3 are connected by the quick-connect clamping device 2. The top surface of the fixing seat 20 and the bottom surface of the protrusion 14 of the gun body 1 clamp the first sealing ring 8 and the second sealing ring 9. At this time, the third pipe 6 is connected to the first pipe 4, and the fourth pipe 7 and the second pipe 5 are connected. Conversely, the gun body 1 can be disassembled.

[0033] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0034] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0035] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0036] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. A dental three-way gun, comprising a gun body (1) and a handle (3), wherein the gun body (1) is provided with a gun head device (11), and the gun body (1) is provided with a first pipe (4) and a second pipe (5) communicating with the gun head device (11), the gun body (1) is provided with a first control valve (12) controlling the on / off state of the first pipe (4) and the gun head device (11), and the gun body (1) is provided with a second control valve (13) controlling the on / off state of the second pipe (5) and the gun head device (11), characterized in that, It also includes a quick-connect device (2), the bottom of the gun body (1) and the top of the handle (3) are detachably connected, the first pipe (4) forms a first insertion hole (40) on the bottom surface of the gun body (1), the second pipe (5) forms a second insertion hole (50) on the bottom surface of the gun body (1), the quick-connect device (2) is provided with a third pipe (6) and a fourth pipe (7), the third pipe (6) is provided with a first insertion part (61), the fourth pipe (7) is provided with a second insertion part (71), when the gun body (1) and the handle (3) are connected and clamped to the quick-connect device (2), the first insertion part (61) is inserted into the first insertion hole (40) and sealed, the third pipe (6) and the first pipe (4) are connected, the second insertion part (71) is inserted into the second insertion hole (50) and sealed, and the fourth pipe (7) and the second pipe (5) are connected.

2. The dental three-way gun according to claim 1, characterized in that, The quick-connect device (2) includes a fixed base (20), a first connecting tube (21) and a second connecting tube (22). The inner cavity of the first connecting tube (21) forms the third pipeline (6), and the second connecting tube (22) forms the fourth pipeline (7). The top of the first connecting tube (21) extends out of the top surface of the fixed base (20) to form the first insertion part (61). The top of the first connecting tube (21) extends out of the bottom surface of the fixed base (20) to form the first connecting part (62). The top of the second connecting tube (22) extends out of the top surface of the fixed base (20) to form the second insertion part (71), and the top of the second connecting tube (22) extends out of the bottom surface of the fixed base (20) to form the second connecting part (72).

3. The dental three-way gun according to claim 2, characterized in that, The first insertion part (61) has a first annular groove (23) on its side, and a first sealing ring (8) is provided in the first annular groove (23). The first insertion part (61) is inserted into the first insertion hole (40), and the side wall of the first insertion hole (40) in the first sealing ring (8) abuts and seals. The second insertion part (71) has a second annular groove (24) on its side, and a second sealing ring (9) is provided in the second annular groove (24). The second insertion part (71) is inserted into the second insertion hole (50), and the side wall of the second insertion hole (50) in the second sealing ring (9) abuts and seals.

4. The dental three-way gun according to claim 2, characterized in that, The top surface of the fixing base (20) is provided with a first annular groove (23) and a second annular groove (24) corresponding to the first connecting pipe (21) and the second connecting pipe (22). The first annular groove (23) is provided with a first sealing ring (8) sleeved on the first connecting pipe (21), and the second annular groove (24) is provided with a second sealing ring (9) sleeved on the second connecting pipe (22). The first insertion part (61) is inserted into the first insertion hole (40), and the second insertion part (71) is inserted into the second insertion hole (50). The top surface of the fixing base (20) and the bottom surface of the gun body (1) clamp the first sealing ring (8) and the second sealing ring (9).

5. The dental three-way gun according to claim 1, characterized in that, The gun body (1) has a protrusion (14) at the bottom. The bottom surface of the protrusion (14) has the first insertion hole (40) and the second insertion hole (50). The side of the protrusion (14) has an external thread (15). The handle (3) is hollow. The top of the inner cavity of the handle (3) has a first step (31). The side wall of the first step (31) has an internal thread (33). The protrusion (14) is inserted into the first step (31). The external thread (15) and the internal thread (33) are threaded together until the protrusion (14) and the step surface of the first step (31) abut against each other.

6. The dental three-way gun according to claim 4, characterized in that, The top of the inner cavity of the handle (3) is provided with a second step (32) below the first step (31). The inner diameter of the second step (32) is smaller than the inner diameter of the first step (31). The quick-connect device (2) includes a fixing seat (20). When the gun body (1) and the handle (3) are connected, it is fixedly inserted into the handle (3). The bottom surface of the fixing seat (20) sits on the step surface of the second step (32), and the top of the fixing seat (20) abuts against the protrusion (14).

7. The dental three-way gun according to claim 1, characterized in that, The first insertion part (61) has a first guide surface (63) at its top, and the second insertion part (71) has a second guide surface (73) at its top.

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