Bellow device and anesthesia machine

Abstract

The utility model belongs to the field of medical equipment provides an anastomosis device and anesthesia machine, the anastomosis device includes: the anastomosis base, is equipped with the first installation groove and spacing structure on it, is equipped with the exhaust joint of communication with exhaust branch in the first installation groove, is equipped with the safety valve in the first installation groove and with the movable butt joint of exhaust joint, is detachably established with the anastomosis base of folding capsule mounting seat, is equipped with the second installation groove and mounting structure on it, is equipped with the airway interface of communication with folding capsule in the second installation groove, the safety valve is installed between the first installation groove with the second installation groove and with airway interface communication, the locking unlocking subassembly that can be movably set up in mounting structure and with spacing structure is set up correspondingly, it can be touched in mounting structure and be moved to separate unlocking or cooperation locking with spacing structure, make the anastomosis base and folding capsule mounting seat separate unlocking or cooperation locking. The utility model has solved the defect such as difficult dismounting, not easy to clean, more inconvenient to use of existing anastomosis assembly.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to a bellows device and an anesthesia machine. Background Technology

[0002] The bellows assembly is a crucial component of the anesthesia machine. The anesthesia respiratory system facilitates the exchange of inhaled and anesthetic gases by delivering an anesthetic gas mixture to the patient and receiving their exhaled gases. When the patient inhales, driving gas enters the bellows and compresses the pleated bag within it, propelling the gas through the breathing tubing to the patient, thus completing the inhalation process. When the patient exhales, the exhaled gas flows from the breathing tubing into the pleated bag, pushing it upwards, thus completing the exhalation process.

[0003] However, most existing bellows assemblies and anesthesia breathing systems adopt an integrated component design or use fasteners to fix the bellows assembly to the anesthesia machine, which leads to problems such as difficulty in disassembling and assembling the bellows assembly, difficulty in cleaning, and inconvenience in use. Utility Model Content

[0004] This utility model provides a bellows device, which aims to solve the technical problems of existing bellows components and anesthesia breathing systems mostly adopting an integrated component design or being fixed with fasteners, resulting in difficulties in disassembling and assembling the bellows components, difficulty in cleaning, and inconvenience in use.

[0005] The bellows device of this utility model embodiment includes:

[0006] A bellows base, wherein the bellows base is provided with a first mounting groove and a limiting structure, and the first mounting groove is provided with an exhaust connector that communicates with the exhaust branch.

[0007] A safety valve is provided on the first mounting groove, and the safety valve is movably abutting against the exhaust connector;

[0008] A folding bladder mounting base is detachably connected to the bellows base. The folding bladder mounting base has a second mounting groove and a mounting structure. The second mounting groove has an airway interface communicating with the folding bladder. The safety valve is installed between the first mounting groove and the second mounting groove and communicates with the airway interface.

[0009] A locking and unlocking component is movably disposed in the mounting structure and correspondingly disposed with respect to the limiting structure. The locking and unlocking component can be activated in the mounting structure to separate and unlock from the limiting structure or to lock with it, so that the bellows base and the folding bladder mounting seat can separate and unlock or lock with it.

[0010] Furthermore, the locking / unlocking component includes:

[0011] An actuating component, the front end of which protrudes from the mounting structure and corresponds to the limiting structure, and the end end which movably passes through the mounting structure and is limited by the mounting structure; the actuating component can be locked against the limiting structure or unlocked by separating from it; and

[0012] An elastic element is sleeved on the actuating member, one end of which abuts against the mounting structure and the other end of which abuts against the front end of the actuating member.

[0013] Furthermore, the actuating component includes:

[0014] The pressing part is located at the front end of the actuating member and has a pressing surface;

[0015] A latch is provided on the rear side of the pressing part and extends to both sides of the pressing part. Both the latch and the pressing part protrude from the mounting structure and are correspondingly arranged with respect to the limiting structure. The latch and the pressing part can be locked against the limiting structure or unlocked by separating them.

[0016] A guide post is connected to the buckle at the front end and extends into the interior of the folding bladder mounting base at the end. The guide post is located in the mounting structure, and its end is movably inserted through the mounting structure and limited by the mounting structure.

[0017] Furthermore, the guide post includes:

[0018] A first guide portion connected to the buckle, the first guide portion having a limiting strip distributed along its length direction, the limiting strip fitting into the inner wall of the mounting structure;

[0019] A second guide portion connected to the first guide portion, the second guide portion having compression grooves distributed along its length, and the cross-sectional area of ​​the first guide portion being larger than the cross-sectional area of ​​the second guide portion; and

[0020] A buckle is provided at the end of the second guide portion, the size of the buckle gradually decreases towards the end of the second guide portion, the second guide portion is movably passed through the mounting structure, and the buckle is limited by the mounting structure.

[0021] Furthermore, the mounting structure includes:

[0022] An outer mounting peripheral wall is provided with a clearance groove, and the buckle corresponds to the clearance groove and can move relative to the clearance groove;

[0023] An inner mounting peripheral wall is provided within the outer mounting peripheral wall; the guide post passes through the inner mounting peripheral wall; a guide groove is provided on the inner side of the inner mounting peripheral wall; and the limiting strip is fitted into the guide groove.

[0024] A limiting hole is provided at the connection between the inner mounting peripheral wall and the folding bladder mounting base. The second guide portion is movably passed through the limiting hole, and both the first guide portion and the buckle are limited by the limiting hole.

[0025] Furthermore, the folding bladder mounting base includes:

[0026] The mounting base body has the second mounting groove disposed on it;

[0027] A mounting perimeter is provided along the circumference of the mounting base body, and the mounting structure is disposed on the mounting perimeter and faces outward from the mounting perimeter; and

[0028] A positioning plate is provided on the mounting periphery and located at opposite ends of the second mounting groove, and one of the positioning plates is provided with a positioning post facing the air box base. The edge of the positioning plate extends toward the air box base to form a limiting edge. A sealing ring is fitted on the air box base, and the sealing ring is located inside the limiting edge.

[0029] Furthermore, the bellows base includes:

[0030] The base body has a first mounting groove disposed on it, and the base body is also provided with a driving gas outlet, a driving gas inlet, and a positioning part corresponding to the positioning column;

[0031] A limiting perimeter is provided on the circumferential direction of the base body, the limiting structure is provided on the limiting perimeter, and the sealing ring is sleeved outside the limiting perimeter; and

[0032] A limiting part is provided on the base body and located in the first mounting groove, and the end of the air passage interface is limited between the limiting part and the first mounting groove.

[0033] Furthermore, the limiting structure includes:

[0034] A limiting notch is provided on the periphery of the limiting part and corresponds to the pressing part, the shape of the limiting notch being adapted to the shape of the pressing part; and

[0035] The locking blocks are located on both sides of the limiting notch, with the ends of the locking blocks extending toward the limiting notch and the locking blocks having locking slots. The buckles are correspondingly embedded in the locking slots and abut against the locking blocks.

[0036] Furthermore, the inner side of the end of the card block is an inclined surface that slopes from the inside to the outside of the card block.

[0037] This invention also provides an anesthesia machine, including the bellows device according to any one of the preceding claims.

[0038] In the bellows device of this utility model embodiment, a limiting structure is provided on the bellows base, and an installation structure is provided on the folding bladder mounting seat. The locking and unlocking component is movably provided in the installation structure and is correspondingly provided with the limiting structure. The locking and unlocking component can be activated in the installation structure to separate and unlock from the limiting structure or lock with it, thereby enabling the bellows base and the folding bladder mounting seat to separate and unlock or lock with it. This realizes the detachable setting between the folding bladder mounting seat and the bellows base. Without the aid of other tools, the folding bladder mounting seat and the bellows base can be quickly disassembled and assembled by hand. That is, the bellows and the folding bladder can be easily assembled or separated by hand, effectively solving the defects of the bellows components in the prior art, such as difficulty in disassembly and assembly, difficulty in cleaning, and inconvenience in use. Attached Figure Description

[0039] Figure 1 This is a perspective view of the bellows device according to an embodiment of the present utility model;

[0040] Figure 2 This is a three-dimensional disassembly diagram of the bellows device according to an embodiment of the present utility model;

[0041] Figure 3 yes Figure 1 A schematic cross-sectional view of the bellows device along the AA direction;

[0042] Figure 4 This is a three-dimensional schematic diagram of the bellows base according to an embodiment of the present utility model;

[0043] Figure 5 This is a perspective view of the folding pouch mounting base according to an embodiment of the present utility model;

[0044] Figure 6 This is another perspective view of the folding pouch mounting base according to an embodiment of the present utility model;

[0045] Figure 7 This is a three-dimensional schematic diagram of the triggering component according to an embodiment of the present utility model.

[0046] Explanation of key component symbols:

[0047] Bellows assembly -100;

[0048] Locking / unlocking assembly - 10; Actuating component - 11; Pressing part - 111; Buckle - 112; Guide post - 113; First guide part - 1131; Limiting strip - 1132; Second guide part - 1133; Compression groove - 1134; Inverted buckle - 1135; Connecting part - 114; Elastic element - 12;

[0049] Bellows base - 20; First mounting groove - 21; Limiting structure - 22; Limiting notch - 221; Locking block - 222; Bayonet - 223; Exhaust connector - 23; Sealing ring - 24; Base body - 25; Driving gas outlet - 251; Driving gas inlet - 252; Positioning part - 26; Limiting periphery - 27; Limiting part - 28; Sealing ring groove - 29;

[0050] Safety valve-30;

[0051] Folding bag mounting base - 40; Second mounting slot - 41; Mounting structure - 42; Outer mounting peripheral wall - 421; Clearance slot - 422; Inner mounting peripheral wall - 423; Guide slot - 424; Limiting hole - 425; Airway interface - 43; Mounting base body - 44; Mounting perimeter - 45; Locking plate - 46; Limiting edge - 461; Positioning post - 47. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0053] In the description of this utility model, it should be understood that the orientation or positional relationship indicated in the description of direction and positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0056] Please see Figures 1 to 3 The bellows device 100 of this utility model embodiment includes a locking and unlocking component 10, a bellows base 20, a safety valve 30 (pop-off valve) and a folding bladder mounting base 40.

[0057] The bellows base 20 is provided with a first mounting groove 21 and a limiting structure 22. An exhaust connector 23 communicating with an exhaust branch is provided in the first mounting groove 21. A safety valve 30 is located on the first mounting groove 21 and movably abuts against the exhaust connector 23. The bellows base 20 and the folding bladder mounting seat 40 are detachably connected. The folding bladder mounting seat 40 is provided with a second mounting groove 41 and a mounting structure 42. An air passage interface 43 communicating with the folding bladder is provided in the second mounting groove 41. The safety valve 30 is installed between the first mounting groove 21 and the second mounting groove 41 and communicates with the air passage interface 43. A locking / unlocking component 10 is movably located in the mounting structure 42 and corresponds to the limiting structure 22. The locking / unlocking component 10 can be activated within the mounting structure 42 to unlock or lock with the limiting structure 22, thus allowing the bellows base 20 and the folding bladder mounting seat 40 to unlock or lock with each other.

[0058] In the bellows device 100 of this utility model embodiment, a limiting structure 22 is provided on the bellows base 20, and an installation structure 42 is provided on the folding bag mounting seat 40. The locking and unlocking component 10 is movably provided in the installation structure 42 and is correspondingly provided with the limiting structure 22. The locking and unlocking component 10 can be activated in the installation structure 42 to separate and unlock or engage and lock with the limiting structure 22, thereby enabling the bellows base 20 and the folding bag mounting seat 40 to separate and unlock or engage and lock. This achieves a detachable arrangement between the folding bag mounting seat 40 and the bellows base 20. Without the aid of other tools, the folding bag mounting seat 40 and the bellows base 20 can be quickly assembled and disassembled by hand. In other words, the bellows and the folding bag can be easily assembled or separated by hand, effectively solving the defects of the bellows components in the prior art, such as difficulty in assembly and disassembly, difficulty in cleaning, and inconvenience in use.

[0059] More specifically, the bellows device 100 of this embodiment includes a bellows cover (not shown) and a folded bladder (not shown) disposed in the bellows cover. The bellows cover and the bellows base 20 are detachably disposed. The shape of the bellows base 20 is adapted to the shape of the bottom of the bellows cover. The folded bladder and the folded bladder mounting seat 40 are detachably disposed and communicate with the airway interface 43. The shape of the folded bladder mounting seat 40 is adapted to the shape of the bottom of the folded bladder, thereby promoting good connection and sealing between the bellows cover and the bellows base 20 and between the folded bladder and the folded bladder mounting seat 40.

[0060] Furthermore, the size of the bellows base 20 is slightly larger than the size of the folding bladder mounting base 40, so that when the folding bladder is mounted on the folding bladder mounting base 40 and the bellows cover is mounted on the bellows base 20, the folding bladder can be located inside the bellows cover.

[0061] The above content is only to illustrate the arrangement relationship between the bellows base 20 and the bellows cover, and the folding bladder mounting seat 40 and the folding bladder. The bellows cover and the folding bladder are common mechanisms in the art. For the specific structure of the two and the detachable arrangement between the two and the bellows base 20 and the folding bladder mounting seat 40, please refer to the relevant content of the bellows cover and the folding bladder in the art. They will not be described in detail here.

[0062] Specifically, the first mounting groove 21 is formed by a protruding edge disposed on the bellows base 20. The protruding edge extends upward from the upper surface of the bellows base 20, and its shape matches the shape of the bottom of the safety valve 30 to ensure stable installation of the safety valve 30. The exhaust connector 23 is disposed in the first mounting groove 21. When the safety valve 30 is installed in the first mounting groove 21, the safety valve 30 can directly and movably abut against the exhaust connector 23, so that the exhaust connector 23 can connect or close the safety valve 30 (folded bladder) and the exhaust branch to realize the release and exhaust functions of the safety valve 30.

[0063] Furthermore, an exhaust valve and an anesthetic gas scavenging system (AGSS) connected to the exhaust valve can also be installed on the exhaust branch. The exhaust valve is connected to the exhaust connector 23 and is used to receive excess gas discharged by the safety valve 30 through the exhaust connector 23. The exhaust valve then discharges the excess gas to the anesthetic gas scavenging system for purification treatment to ensure the safe use of the anesthesia machine.

[0064] The second mounting groove 41 is located in the folding bladder mounting base 40 and corresponds to the aforementioned second mounting groove 41. It is formed by a protruding edge on the folding bladder mounting base 40, which extends downward from the lower surface of the folding bladder mounting base 40. The shape of the protruding edge is adapted to the shape of the top of the safety valve 30, so that the safety valve 30 can be stably installed between the first mounting groove 21 and the second mounting groove 41. The airway interface 43 is located in the second mounting groove 41 and communicates with the inner cavity of the folding bladder. After the safety valve 30 is aligned and inserted into the second mounting groove 41, the safety valve 30 can directly communicate with the airway interface 43, thereby directly communicating with the inner cavity of the folding bladder to control the gas in the folding bladder.

[0065] In this embodiment, the limiting structure 22 is used to limit the position of the locking and unlocking component 10, for example, it can prevent the locking and unlocking component 10 from falling off and separating to the outside of the bellows device 100. The mounting structure 42 is used to install the locking and unlocking component 10, for example, while installing the locking and unlocking component 10, it also restricts the locking and unlocking component 10 from separating from itself. The locking and unlocking component 10 is used to lock or unlock the limiting structure 22 and the mounting structure 42. It can move, slide or rotate in the mounting structure 42 to change the positional relationship / connection relationship with the limiting structure 22, so as to lock or unlock the bellows base 20 and the folding bag mounting seat 40, thereby realizing the installation or disassembly of the bellows and the folding bag.

[0066] For example, the locking / unlocking component 10 can move within the mounting structure 42 to unlock and lock the mounting structure 42 and the limiting structure 22 as follows: when the locking / unlocking component 10 moves to a first set position within the mounting structure 42, the locking / unlocking component 10 and the limiting structure 22 are unlocked, thus unlocking the mounting structure 42 and the limiting structure 22; when the locking / unlocking component 10 moves from the first set position to a second set position within the mounting structure 42, the locking / unlocking component 10 and the limiting structure 22 are locked, thus locking the mounting structure 42 and the limiting structure 22.

[0067] In addition, the limiting structure 22 is located at the edge of the bellows base 20, and the mounting structure 42 is located at the edge of the folding bag mounting seat 40, so that the locking and unlocking component 10 is also located at the edge of the bellows device 100. In this way, the user can directly and conveniently touch the locking and unlocking component 10 at the edge of the bellows device 100 to conveniently control the locking and unlocking between the bellows base 20 and the folding bag mounting seat 40.

[0068] Please see Figures 1 to 3 Furthermore, there are two limiting structures 22 and two mounting structures 42. The two limiting structures 22 are located on opposite sides of the first mounting groove 21, and the two mounting structures 42 are located on opposite sides of the second mounting groove 41.

[0069] That is, there are also two locking and unlocking components 10. Through the setting of two sets of limiting structures 22, mounting structures 42 and locking and unlocking components, the bellows device 100 is locked from both sides, which ensures the stability of the bellows base 20 and the folding bag mounting seat 40 when locked, and also makes it easier to operate.

[0070] When assembling the bellows base 20 and the folding bladder mounting base 40, the locking and unlocking component 10 is first pre-installed on the folding bladder mounting base 40, that is, pre-installed in the mounting structure 42. The safety valve 30 can be pre-installed in the bellows base 20, that is, pre-installed in the first mounting groove 21. Then, the bellows base 20 and the folding bladder mounting base 40 are aligned so that the top of the safety valve 30 can be aligned and fitted with the second mounting groove 41, ensuring the stability of the safety valve 30 in the bellows device 100. At the same time, the locking and unlocking component 10 can be aligned with the limiting structure 22. Then, the locking and unlocking component 10 is touched to make it move slightly so that it can be connected with the limiting structure 22, thereby locking the bellows base 20 and the folding bladder mounting base 40, that is, locking the bellows cover and the folding bladder.

[0071] When disassembling the bellows base 20 and the folding bladder mounting base 40, simply touch the locking and unlocking component 10 to separate it from the limiting structure 22 to unlock it. Then, the bellows base 20 and the folding bladder mounting base 40 can be disassembled and separated, thus allowing the bellows cover and the folding bladder to be disassembled and separated.

[0072] Please see Figures 1 to 3 and Figure 7 Furthermore, the lock / unlock component 10 includes:

[0073] The actuating component 11 has its front end exposed from the mounting structure 42 and correspondingly positioned with the limiting structure 22, while its end end movably passes through the mounting structure 42 and is limited by it. The actuating component 11 can be locked against the limiting structure 22 or unlocked by separating it.

[0074] An elastic element 12 is sleeved on the actuating member 11. One end of the elastic element 12 abuts against the mounting structure 42, and the other end abuts against the front end of the actuating member 11.

[0075] Specifically, the front end of the actuating member 11 has an arc-shaped pressing surface that protrudes from the mounting structure 42. The user can conveniently operate the actuating member 11 by pressing the pressing surface. Both sides of the pressing surface have limiting portions that extend to both sides. The limiting structure 22 restricts these portions to limit the actuating member 11, forming a locking relationship.

[0076] The actuating member 11 can move within the mounting structure 42, such as moving along the outer and inner sides of the mounting structure 42, so that the aforementioned limited portion abuts against or is separated from the limiting structure 22, thereby locking or unlocking the actuating member 11 and the limiting structure 22. The end of the actuating member 11 is limited by the mounting structure 42, which not only prevents the actuating member 11 from falling off the mounting structure 42, but also enables the connection between the mounting structure 42 and the limiting structure 22 through the actuating member 11.

[0077] The elastic element 12 is sleeved on the actuating member 11 and housed in the mounting structure 42. When the locking and unlocking component 10 is installed in the mounting structure 42, the elastic element 12 is in a compressed state, with its two ends applying force to the actuating member 11 and the mounting structure 42 respectively. When installing the bellows base 20 and the folding bladder mounting seat 40, the user first presses the actuating member 11 to retract it into the mounting structure 42. After aligning the bellows base 20 and the folding bladder mounting seat 40, the user releases the actuating member 11, which automatically resets under the action of the elastic element 12 and locks with the limiting structure 22. The locking relationship remains stable under the action of the elastic element 12, making the operation relatively simple and the locking of the bellows base 20 and the folding bladder mounting seat 40 relatively stable.

[0078] Please continue reading. Figures 1 to 3 and Figure 7 Furthermore, the actuating component 11 includes:

[0079] The pressing part 111 is located at the front end of the actuating member 11 and has a pressing surface;

[0080] A latch 112 is provided on the rear side of the pressing part 111 and extends to both sides of the pressing part 111. Both the latch 112 and the pressing part 111 protrude from the mounting structure 42 and are correspondingly provided with the limiting structure 22. The latch 112 and the pressing part 111 can be locked by abutting against the limiting structure 22 or unlocked by separating from it.

[0081] A guide post 113 is connected to the buckle 112 at the front end and extends into the interior of the folding bladder mounting base 40 at the end. The guide post 113 is located in the mounting structure 42, and its end can be movably inserted through the mounting structure 42 and limited by the mounting structure 42.

[0082] In this embodiment, the pressing part 111 is embedded in the limiting structure 22, thereby exposing the pressing surface in the limiting structure 22 and locking the pressing part 111 with the limiting structure 22, and preventing the touching member 11 from wobbling left and right. The pressing surface can be a rough surface or a smooth surface. A rough surface can increase the friction between the user's finger and the pressing part 111, while a smooth surface is easier to clean.

[0083] The latch 112 is a structure formed on the rear side of the pressing part 111 and protruding outward. Both the latch 112 and the pressing part 111 are exposed from the mounting structure 42 to facilitate engagement with the limiting structure 22. When no external force is present, under the action of the elastic element 12, the pressing part 111 can automatically embed into the limiting structure 22, and the latch 112 can abut against the inner side of the limiting structure 22 and be limited by the limiting structure 22, thereby locking the actuating member 11 and the limiting structure 22. When both the pressing part 111 and the latch 112 are separated from the limiting structure 22, the actuating member 11 is unlocked from the limiting structure 22.

[0084] The mounting structure 42 has a movable channel for accommodating the guide post 113. The extension direction of the guide post 113 is consistent with the extension direction of the movable channel, which guides the movement of the actuating member 11 in the mounting structure 42 and forms a limiting relationship with the mounting structure 42 to prevent the actuating member 11 from falling off the mounting structure 42. The elastic element 12 is sleeved on the guide post 113, with one end abutting against the buckle 112 and the other end abutting against the mounting structure 42. The elastic element 12 applies an outward force to the actuating member 11, but the end of the guide post 113 is limited by the mounting structure 42, thereby keeping the actuating member 11 in the mounting structure 42.

[0085] Furthermore, the trigger component 11 is an integral structure, that is, the pressing part 111, the buckle 112 and the guide post 113 are integrally formed. If the above three can be integrally injection molded, the overall structural strength of the trigger component 11 can be improved, and the manufacturing process and cost of the trigger component 11 can be simplified.

[0086] Of course, in other embodiments, the pressing part 111, the buckle 112 and the guide post 113 can also be separate structures, which are convenient to replace when damaged. The design can be made according to specific needs.

[0087] Please see Figure 2 , Figure 3 and Figure 7 Furthermore, the guide post 113 includes:

[0088] The first guide portion 1131 is connected to the buckle 112. The first guide portion 1131 is provided with a limiting strip 1132 distributed along its length direction. The limiting strip 1132 fits into the inner wall of the mounting structure 42.

[0089] A second guide portion 1133 connected to the first guide portion 1131, the second guide portion 1133 having compression grooves 1134 distributed along its length, and the cross-sectional area of ​​the first guide portion 1131 being larger than the cross-sectional area of ​​the second guide portion 1133; and

[0090] An undercut 1135 is provided at the end of the second guide portion 1133. The size of the undercut 1135 gradually decreases towards the end of the second guide portion 1133. The second guide portion 1133 is movably provided with the mounting structure 42, and the undercut 1135 is limited by the mounting structure 42.

[0091] In this embodiment, the guide post 113 is mainly divided into two parts: a first guide portion 1131 and a second guide portion 1133, both of which are columnar / rod-shaped and cooperate with different parts of the limiting structure 22. The first guide portion 1131 has limiting strips 1132 on both its upper and lower sides. The limiting strips 1132 fit into the inner wall of the mounting structure 42, which helps guide the movement of the first guide portion 1131 within the mounting structure 42 and prevents the first guide portion 1131 from rotating or misaligning within the mounting structure 42.

[0092] The second guide section 1133 is provided with compression grooves 1134 distributed along its length direction. The buckle 1135 is provided at the end of the second guide section 1133 away from the first guide section 1131 and the buckle 1135 is in a tapered shape. The mounting structure 42 may be provided with a limiting hole.

[0093] Thus, when the triggering member 11 is installed on the mounting structure 42, the second guide portion 1133 can be slightly compressed from both sides towards the middle, so that the size of the second guide portion 1133 and the size of the buckle 1135 are slightly reduced, making it easier to insert the buckle 1135 into the hole. After the second guide portion 1133 is released and reset, the buckle 1135 can be limited by the mounting structure 42, thereby preventing the triggering member 11 from falling off the mounting structure 42.

[0094] In addition, the cross-sectional area of ​​the aforementioned hole is similar to the size of the second guide portion 1133. The cross-sectional area of ​​the first guide portion 1131 is designed to be larger than that of the second guide portion 1133. This allows the aforementioned hole to limit the first guide portion 1131, restricting the distance that the actuating member 11 can move into the mounting structure 42. This prevents the actuating member 11 from moving further inward after the second guide portion 1133 has completely passed through the hole. During disassembly and installation, it is not necessary to press the actuating member 11 excessively, making it easier for the user to operate.

[0095] Please see Figure 3 , Figure 5 and Figure 6 Furthermore, the mounting structure 42 includes:

[0096] An outer mounting peripheral wall 421 is provided with a clearance groove 422. The buckle 112 corresponds to the clearance groove 422 and can move relative to the clearance groove 422.

[0097] An inner mounting peripheral wall 423 is provided within the outer mounting peripheral wall 421. A guide post 113 passes through the inner mounting peripheral wall 423. A guide groove 424 is provided on the inner side of the inner mounting peripheral wall 423. A limiting strip 1132 engages with the guide groove 424.

[0098] A limiting hole 425 is provided at the connection between the inner mounting peripheral wall 423 and the folding bladder mounting base 40. The second guide part 1133 is movably passed through the limiting hole 425. The first guide part 1131 and the buckle 1135 are both limited by the limiting hole 425.

[0099] Specifically, the mounting structure 42 is divided into two layers: an inner mounting peripheral wall 423 and an outer mounting peripheral wall 421. Both are roughly cylindrical. The clearance groove 422 is provided on the left and right sides of the outer mounting peripheral wall 421 and extends along the length of the outer mounting peripheral wall 421. The width of the clearance groove 422 can be equal to or slightly greater than the thickness of the buckle 112. When the actuating member 11 is installed on the mounting structure 42, the clearance groove 422 avoids the buckle 112, so that the buckle 112 can move smoothly through the clearance groove 422. This allows the actuating member 11 to move relative to the outer mounting peripheral wall 421 and be guided by the movement of the clearance groove 422. It also prevents the actuating member 11 from rotating and misaligning.

[0100] The guide post 113 passes through the inner mounting peripheral wall 423, meaning that both the first guide part 1131 and the second guide part 1133 can move through the inner mounting peripheral wall 423. The inner mounting peripheral wall 423 can guide the movement of the guide post 113. The guide groove 424 is provided on the upper and lower sides of the inner wall of the inner mounting peripheral wall 423 and extends along the length of the inner mounting peripheral wall 423. The guide groove 424 and the limiting strips 1132 provided on the upper and lower sides of the first guide part 1131 are correspondingly fitted and engaged, which can guide the movement of the guide post 113 and also restrict the rotational misalignment of the guide post 113 (touch member 11).

[0101] The cross-sectional area of ​​the limiting hole 425 is equal to or slightly larger than the cross-sectional area of ​​the second guide portion 1133 and larger than the cross-sectional area of ​​the buckle 1135 when it is compressed, so that the buckle 1135 can be inserted into it and the second guide portion 1133 can be movably passed through it. The cross-sectional area of ​​the limiting hole 425 is smaller than the cross-sectional area of ​​the side of the buckle 1135 facing the limiting hole 425 when it is not compressed, thereby limiting the first guide portion 1131 and the buckle 1135 at the same time. This can restrict the inward movement of the first guide portion 1131 and the outward movement of the buckle 1135, which can prevent the moving distance of the triggering member 11 from being too large and also prevent the triggering member 11 from falling off the mounting structure 42.

[0102] Furthermore, the actuating member 11 may also include a mating portion 114 located between the latch 112 and the guide post 113. The mating portion 114 is generally disc-shaped, and its shape is the same as the cross-sectional shape of the outer mounting peripheral wall 421. The cross-sectional area of ​​the mating portion 114 is larger than the cross-sectional area of ​​the guide post 113 and equal to or slightly smaller than the cross-sectional area of ​​the outer mounting peripheral wall 421. It can be embedded in the outer mounting peripheral wall 421 and limited by the inner mounting peripheral wall 423, thereby controlling the movable distance of the actuating member 11 in the mounting structure 42.

[0103] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 Furthermore, the folding bladder mount 40 includes:

[0104] Mounting base body 44, the second mounting groove 41 is provided on the mounting base body 44;

[0105] A mounting perimeter 45 is provided circumferentially along the mounting base body 44, and a mounting structure 42 is provided on the mounting perimeter 45 and faces outward from the mounting perimeter 45; and

[0106] A positioning plate 46 is provided on the mounting perimeter 45 and located at opposite ends of the second mounting groove 41, and one of the positioning plates 46 is provided with a positioning post 47 facing the air box base 20. The edge of the positioning plate 46 extends towards the air box base 20 to form a limiting edge 461. A sealing ring 24 is fitted on the air box base 20, and the sealing ring 24 is located inside the limiting edge 461.

[0107] Specifically, the second mounting groove 41 is located at the relative center of the lower surface of the mounting base body 44, and is formed by extending downward from the lower surface of the mounting base body 44. The mounting perimeter 45 is arranged around the second mounting groove 41. The mounting structure 42 is located on the opposite sides of the mounting perimeter 45. The outer mounting perimeter wall 421, the inner mounting perimeter wall 423 and the limiting hole 425 in the mounting structure 42 are all located on the mounting perimeter 45. That is, the actuating member 11 can be movably inserted through the mounting structure 42 and the mounting perimeter 45. The locking plate 46 is located on the other opposite sides of the mounting perimeter 45. The two mounting structures 42 and the two locking plates 46 are arranged alternately on the mounting perimeter 45.

[0108] In this embodiment, the positioning plate 46 is arc-shaped, and the limiting edge 461 extends downward from the lower edge of the positioning plate 46, that is, the limiting edge 461 is also arc-shaped, so as to better form a limiting fit with the sealing ring 24 sleeved on the bellows base 20, and better limit the position of the sealing ring 24. The sealing ring 24 is used to seal the bellows cover when the bellows cover is installed on the bellows base 20, thereby improving the airtightness between the bellows cover and the bellows base 20.

[0109] The positioning post 47 is located on the locking plate 46 on the side away from the airway interface 43 and extends downward. When the bellows base 20 and the folding bag mounting seat 40 are installed, the positioning post 47 can play a positioning role, making the bellows base 20 and the folding bag mounting seat 40 easier to install and more accurately positioned.

[0110] In this embodiment, the folding bladder mounting base 40 can be an integral structure, which improves the structural integrity of the folding bladder mounting base 40, facilitates manufacturing, and saves production costs.

[0111] Please see Figures 1 to 4 and Figure 6 Furthermore, the bellows base 20 includes:

[0112] The base body 25 has a first mounting groove 21 on it. The base body 25 also has a driving gas outlet 251, a driving gas inlet 252, and a positioning part 26 corresponding to the positioning post 47.

[0113] A limiting perimeter 27 is provided on the circumferential direction of the base body 25; a limiting structure 22 is provided on the limiting perimeter 27; and a sealing ring 24 is sleeved on the limiting perimeter 27; and

[0114] The limiting part 28 is provided on the base body 25 and located in the first mounting groove 21, and the end of the air passage interface 43 is limited between the limiting part 28 and the first mounting groove 21.

[0115] In this embodiment, the first mounting groove 21 is located at the relative center of the upper surface of the base body 25 and extends upward from the upper surface of the base body 25. The limiting part 28 extends upward from the upper surface of the base body 25 surrounded by the first mounting groove 21. When installing the bellows base 20 and the folding bag mounting seat 40, the air passage interface 43 is aligned and engaged between the limiting part 28 and the inner wall of the first mounting groove 21, promoting accurate and stable installation of the bellows base 20 and the folding bag mounting seat 40.

[0116] The driving gas outlet 251 and driving gas inlet 252 are both located outside the first mounting groove 21 and are connected to the input source and output source of the driving gas, respectively. An air cavity is formed between the folded bag and the bellows cover. The air cavity is connected to both the driving gas outlet 251 and the driving gas inlet 252. When the driving gas flows in the air cavity, the folded bag can be driven by the driving gas and expand and contract in the bellows cover to control the output of the anesthetic gas.

[0117] In addition, the positioning part 26 is also located outside the first mounting groove 21. It is formed by extending upward from the upper surface of the base body 25. A positioning groove is formed in the positioning part 26, and the positioning post 47 can be embedded in the positioning groove to realize the positioning and guidance of the bellows base 20 and the folding bag during installation.

[0118] The limiting perimeter 27 is arranged around the first mounting groove 21 and is located approximately at the outer periphery of the base body 25. The driving gas inlet 252, the driving gas outlet 251, and the positioning part 26 are all located between the limiting perimeter 27 and the first mounting groove 21. The limiting perimeter 27 is used to set the limiting structure 22 and install the sealing ring 24. The limiting structure 22 is located on opposite sides of the limiting perimeter 27, and the sealing ring 24 is sleeved on the outside of the limiting perimeter 27.

[0119] Furthermore, the base body 25 is also provided with a sealing ring groove 29 surrounding the limiting perimeter 27. The sealing ring 24 is sleeved on the outside of the limiting perimeter 27 and embedded in the sealing ring groove 29, ensuring the stability of the sealing ring 24 on the base body 25, thereby improving the sealing effect on the bellows cover.

[0120] In this embodiment, except for the exhaust connector 23 and the sealing ring 24, the other structures on the bellows base 20 are integral, which improves the structural integrity of the bellows base 20, facilitates manufacturing, and saves production costs. Moreover, the bellows base 20 and the folding bladder mounting base 40 are independent components, which makes them easier to assemble and disassemble, and promotes the convenience of assembling and disassembling the bellows device 100.

[0121] Please see Figures 1 to 4 and Figure 7 Furthermore, the limiting structure 22 includes:

[0122] A limiting notch 221 is provided on the limiting periphery 27 and corresponds to the pressing part 111, the shape of the limiting notch 221 being adapted to the shape of the pressing part 111; and

[0123] The locking blocks 222 are located on both sides of the limiting notch 221. The ends of the locking blocks 222 extend toward the limiting notch 221, and the locking blocks 222 are provided with locking slots 223. The buckles 112 are correspondingly embedded in the locking slots 223 and abut against the locking blocks 222.

[0124] Specifically, the limiting notch 221 is a notch opened on the limiting periphery 27 with its opening direction facing upward. The latch 223 is located between the latch block 222 and the limiting periphery 27. The two latch blocks 222 and the two latches 223 are arranged opposite to each other on both sides of the limiting notch 221. The pressing part 111 is stably embedded in the limiting notch 221. The latches 112 on both sides of the pressing part 111 abut against the latch blocks 222 and the latches 223 on both sides of the limiting notch 221 and are limited. The latches 112 and the latch blocks 222 can block the latches 112 from moving outward, so that the limiting structure 22 blocks the actuating member 11 from moving outward and realizes the stable locking of the actuating member 11 and the limiting structure 22.

[0125] Please see Figure 4Furthermore, in this embodiment, the inner side of the end of the card block 222 is an inclined surface that slopes from the inside to the outside of the card block 222.

[0126] In this embodiment, the thickness of the top of the end of the locking block 222 is thinner than the thickness of the bottom. Therefore, the inner side of the end of the locking block 222 is an inclined surface that slopes from the inside of the locking block 222 to the outside. It can also be understood as an inclined surface that slopes downward from the top of the end of the locking block 22 into the bellows base 20. The edge of the buckle 112 facing the locking block 222 is also inclined. Thus, when the actuating member 11 abuts against the limiting structure 22 for locking, the inclined surface on the end of the locking block 222 will cause the buckle 112 to converge towards the middle, and cause the actuating member 11 to move towards the inside of the mounting structure 42. When installed in place, the elastic element 12 pushes the actuating member 11 outward, so that the buckle 112 engages with the latch 223, thereby realizing the quick installation of the bellows base 20 and the folding bag mounting seat 40.

[0127] The anesthesia machine of this utility model embodiment includes the bellows device 100 of any of the above embodiments.

[0128] In the anesthesia machine of this utility model embodiment, the bellows base 20 is provided with a limiting structure 22, and the folded bag mounting seat 40 is provided with a mounting structure 42. The locking and unlocking component 10 is movably disposed in the mounting structure 42 and is correspondingly disposed with respect to the limiting structure 22. The locking and unlocking component 10 can be activated in the mounting structure 42 to separate and unlock from the limiting structure 22 or to lock with it, thereby enabling the bellows base 20 and the folded bag mounting seat 40 to separate and unlock or to lock with it. This achieves a detachable arrangement between the folded bag mounting seat 40 and the bellows base 20. Without the aid of other tools, the folded bag mounting seat 40 and the bellows base 20 can be quickly assembled and disassembled by hand. In other words, the bellows and the folded bag can be easily assembled or separated by hand, effectively solving the defects of the bellows assembly in the prior art, such as difficulty in disassembly and assembly, difficulty in cleaning, and inconvenience in use.

[0129] In the description of this specification, the references to terms such as "Embodiment 1," "Embodiment 2," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0130] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 bellows device, characterized in that, include: A bellows base, wherein the bellows base is provided with a first mounting groove and a limiting structure, and the first mounting groove is provided with an exhaust connector that communicates with the exhaust branch. A safety valve is provided on the first mounting groove, and the safety valve is movably abutting against the exhaust connector; A folding bladder mounting base is detachably connected to the bellows base. The folding bladder mounting base is provided with a second mounting groove and a mounting structure. The second mounting groove is provided with an airway interface communicating with the folding bladder. The safety valve is installed between the first mounting groove and the second mounting groove and communicates with the airway interface. as well as A locking and unlocking component is movably disposed in the mounting structure and correspondingly disposed with respect to the limiting structure. The locking and unlocking component can be activated in the mounting structure to separate and unlock from the limiting structure or to lock with it, so that the bellows base and the folding bladder mounting seat can separate and unlock or lock with it.

2. The bellows device according to claim 1, characterized in that, The locking / unlocking component includes: An actuating component, the front end of which protrudes from the mounting structure and corresponds to the limiting structure, and the end end which movably passes through the mounting structure and is limited by the mounting structure; the actuating component can be locked against the limiting structure or unlocked by separating from it; and An elastic element is sleeved on the actuating member, one end of which abuts against the mounting structure and the other end of which abuts against the front end of the actuating member.

3. The bellows device according to claim 2, characterized in that, The actuating component includes: The pressing part is located at the front end of the actuating member and has a pressing surface; A latch is provided on the rear side of the pressing part and extends to both sides of the pressing part. Both the latch and the pressing part protrude from the mounting structure and are correspondingly arranged with respect to the limiting structure. The latch and the pressing part can be locked against the limiting structure or unlocked by separating them. A guide post is connected to the buckle at the front end and extends into the interior of the folding bladder mounting base at the end. The guide post is located in the mounting structure, and its end is movably inserted through the mounting structure and limited by the mounting structure.

4. The bellows device according to claim 3, characterized in that, The guide post includes: A first guide portion connected to the buckle, the first guide portion having a limiting strip distributed along its length direction, the limiting strip fitting into the inner wall of the mounting structure; A second guide portion connected to the first guide portion, the second guide portion having compression grooves distributed along its length, and the cross-sectional area of ​​the first guide portion being larger than the cross-sectional area of ​​the second guide portion; and A buckle is provided at the end of the second guide portion, the size of the buckle gradually decreases towards the end of the second guide portion, the second guide portion is movably passed through the mounting structure, and the buckle is limited by the mounting structure.

5. The bellows device according to claim 4, characterized in that, The mounting structure includes: An outer mounting peripheral wall is provided with a clearance groove, and the buckle corresponds to the clearance groove and can move relative to the clearance groove; An inner mounting peripheral wall is provided within the outer mounting peripheral wall; the guide post passes through the inner mounting peripheral wall; a guide groove is provided on the inner side of the inner mounting peripheral wall; and the limiting strip is fitted into the guide groove. A limiting hole is provided at the connection between the inner mounting peripheral wall and the folding bladder mounting base. The second guide portion is movably passed through the limiting hole, and both the first guide portion and the buckle are limited by the limiting hole.

6. The bellows device according to claim 3, characterized in that, The folding bladder mounting base includes: The mounting base body has the second mounting groove disposed on the mounting base body; A mounting perimeter is provided along the circumference of the mounting base body, and the mounting structure is disposed on the mounting perimeter and faces outward from the mounting perimeter; and A positioning plate is provided on the mounting periphery and located at opposite ends of the second mounting groove, and one of the positioning plates is provided with a positioning post facing the air box base. The edge of the positioning plate extends toward the air box base to form a limiting edge. A sealing ring is fitted on the air box base, and the sealing ring is located inside the limiting edge.

7. The bellows device according to claim 6, characterized in that, The bellows base includes: The base body has a first mounting groove disposed on it, and the base body is also provided with a driving gas outlet, a driving gas inlet, and a positioning part corresponding to the positioning column; A limiting perimeter is provided on the circumferential direction of the base body, the limiting structure is provided on the limiting perimeter, and the sealing ring is sleeved outside the limiting perimeter; and A limiting part is provided on the base body and located in the first mounting groove, and the end of the air passage interface is limited between the limiting part and the first mounting groove.

8. The bellows device according to claim 7, characterized in that, The limiting structure includes: A limiting notch is provided on the periphery of the limiting part and corresponds to the pressing part, the shape of the limiting notch being adapted to the shape of the pressing part; and The locking blocks are located on both sides of the limiting notch, with the ends of the locking blocks extending toward the limiting notch and the locking blocks having locking slots. The buckles are correspondingly embedded in the locking slots and abut against the locking blocks.

9. The bellows device according to claim 8, characterized in that, The inner side of the end of the card block is an inclined surface that slopes from the inside to the outside of the card block.

10. An anesthesia machine, characterized in that, Includes the bellows device according to any one of claims 1 to 9.

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