Rotary connecting piece and blood transfusion and transfusion warmer

Abstract

The utility model discloses a rotary connecting piece and a blood transfusion and transfusion warmer, and relates to the technical field of medical instruments, the rotary connecting piece is used for rotatably connecting two parts which are matched with each other, and the rotary connecting piece comprises a mounting seat, a rotating shaft and a connecting assembly; the mounting base is used for being mounted on one component, a mounting groove is formed in the left end face of the mounting base, the mounting groove is provided with a front end wall and a rear end wall which are arranged in the front-back direction, and at least one of the front end wall and the rear end wall is a first matching part; the rotating shaft is used for being installed on another component, the rotating shaft extends in the front-back direction and is arranged in the installation groove, the rotating shaft is provided with a front end part and a rear end part which are arranged in the front-back direction, and at least one of the front end part and the rear end part is a second matching part; the connecting assembly comprises at least one connecting piece coaxial with the rotating shaft, and the connecting piece is arranged on the first matching part and connected with the second matching part; according to the technical scheme, the two parts matched with each other are more convenient to install, and the service life is longer.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rotating connector and a blood transfusion and infusion warmer. Background Technology

[0002] A blood transfusion or infusion warmer is a medical device used to heat blood or fluids to near body temperature during transfusion or infusion to prevent patients from developing hypothermia due to the infusion of cold fluids.

[0003] The base and cover of a blood transfusion and infusion warmer are often connected by a hinge. However, this type of connection is complicated to assemble, requires screws for fixing, and the hinges are exposed after installation, resulting in a short service life. This affects both the assembly speed and the service life after the device is refitted.

[0004] Therefore, how to provide a convenient and concealed rotating connector is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The main purpose of this utility model is to propose a rotating connector and a blood transfusion and infusion warmer, aiming to provide a convenient and concealed rotating connector.

[0006] To achieve the above objectives, the present invention proposes a rotating connector for rotatably connecting two mating components. The rotating connector includes a mounting base, a rotating shaft, and a connecting assembly. The mounting base is used to mount one of the components. The left end face of the mounting base has a mounting groove, which has a front end wall and a rear end wall arranged in a front-rear direction. At least one of the front end wall and the rear end wall is a first mating part. The rotating shaft is used to mount the other component. The rotating shaft extends in a front-rear direction and is disposed in the mounting groove. The rotating shaft has a front end and a rear end arranged in a front-rear direction. At least one of the front end and the rear end is a second mating part. The connecting assembly includes at least one connecting member coaxially disposed with the rotating shaft. The connecting member is disposed in the first mating part and connects to the second mating part.

[0007] In one embodiment, the front end wall or the rear end wall serves as the first mating part, and the front end end or the rear end end serves as the second mating part. One of the first mating parts or the second mating part is provided with a limiting hole, and the other is used to install a connector. The two connectors are respectively inserted into the two limiting holes.

[0008] In one embodiment, the front end wall has a first connecting hole facing one of the two components; the two connecting members include a first connecting member disposed on the front end wall, and a second connecting hole extending axially from the first connecting member; the interior of the rotating shaft forms a first cavity, and the front end face of the rotating shaft has a limiting hole communicating with the first cavity, the limiting hole corresponding to the second connecting hole, and the rotating shaft has a third connecting hole facing the other of the two components.

[0009] In one embodiment, the connecting component further includes a protective sleeve, the middle part of which is disposed in the second connecting hole, and the two ends of the protective sleeve extend into the first connecting hole and the limiting hole, respectively.

[0010] In one embodiment, the protective sleeve is made of an elastomeric material.

[0011] In one embodiment, the shaft has a second cavity inside, and the rearward end face of the shaft has a through hole communicating with the second cavity; the two connecting members include a second connecting member, which includes a compression elastic member and a push-off shaft; the compression elastic member is disposed in the second cavity, and one end of the compression elastic member abuts against the cavity wall of the second cavity; the push-off shaft is movably disposed in the second cavity in the front-rear direction, with one end abutting against the compression elastic member and the other end extending out from the through hole and abutting against the rear end wall.

[0012] In one embodiment, a limiting hole is provided on the rear end wall of the mounting base, and the abutting shaft is arranged with a gradually decreasing diameter from front to back, forming an abutting section and a limiting section in sequence. The abutting section abuts against the rear end wall of the mounting base, and the limiting section is inserted into the limiting hole.

[0013] This utility model also proposes a blood transfusion and infusion warmer, which includes a base, a cover, and a rotating connector; the base is equipped with a power connector; the cover is rotatably connected to the base; the rotating connector is used to rotatably connect two cooperating parts, and the rotating connector includes a mounting seat, a rotating shaft, and a connecting assembly; the mounting seat is used to install on one of the parts, and the left end face of the mounting seat has a mounting groove, the mounting groove having a front end wall and a rear end wall arranged in the front-rear direction, at least one of the front end wall and the rear end wall being a first mating part; the rotating shaft is used to install on the other part, the rotating shaft extends in the front-rear direction and is disposed in the mounting groove, the rotating shaft having a front end end and a rear end end arranged in the front-rear direction, at least one of the front end end and the rear end end being a second mating part; the connecting assembly includes at least one connector coaxially disposed with the rotating shaft, the connector being disposed at the first mating part and connecting to the second mating part.

[0014] In one embodiment, the front end wall has a first connecting hole facing one of the two components; the two connectors include a first connector disposed on the front end wall, and a second connecting hole extending axially from the first connector; the interior of the rotating shaft forms a first cavity, and the front end face of the rotating shaft has a limiting hole communicating with the first cavity, the limiting hole corresponding to the second connecting hole; the rotating shaft has a third connecting hole facing the other of the two components; the blood transfusion and infusion warmer also includes a first circuit board, a second circuit board, and a flexible flat cable; the first circuit board is disposed on the base; the second circuit board is disposed on the cover; the flexible flat cable passes through the first connecting hole, the second connecting hole, the first cavity, and the third connecting hole, electrically connecting the first circuit board and the second circuit board.

[0015] In one embodiment, the connecting assembly further includes a protective sleeve that is fitted over the outside of the flexible flat cable; and / or, a fastener for securing the flexible flat cable is provided at the third connecting hole.

[0016] The technical solution of this utility model sets the mounting base in one component and installs the rotating shaft in another component and sets it in the mounting groove of the mounting base. In this way, the rotating shaft can be directly placed in the mounting groove for installation. The mounting base and the rotating shaft are connected by a connecting component, which eliminates the need for other equipment and parts for installation. The assembly is convenient, and the connecting component is hidden in the mounting groove. After the connecting component is installed, it is not easily affected by the external environment and has a long service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the blood transfusion and infusion warmer provided by this utility model;

[0019] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 for Figure 2 Schematic diagram of the middle mounting base;

[0021] Figure 4 for Figure 3 Top view of the mounting base structure;

[0022] Figure 5 for Figure 2Schematic diagram of the transfer shaft;

[0023] Figure 6 for Figure 5 A top view of the structure of the transfer shaft.

[0024] Explanation of icon numbers:

[0025] 100. Rotating connector; 1. Mounting base; 11. Mounting groove; 11A. Front end wall; 11B. Rear end wall; 12. First connecting hole; 2. Rotating shaft; 2A. Front end; 2B. Rear end; 21. First cavity; 22. Second cavity; 23. Third connecting hole; 24. Through hole; 3. Connecting assembly; 31. First connector; 311. Second connecting hole; 32. Second connector; 321. Abutting shaft; 322. Compression elastic element; 33. Limiting hole; 34. Protective sleeve;

[0026] 200. Blood transfusion and infusion warmer; 201. Base; 202. Cover; 203. First circuit board; 204. Second circuit board; 205. Flexible flat cable; 206. Fixing component.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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 scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. A blood transfusion or infusion warmer is a medical device used to heat blood or fluids to near human body temperature during blood transfusion or infusion to prevent patients from developing hypothermia due to the infusion of cold fluids.

[0031] The base and cover of a blood transfusion and infusion warmer are often connected by a hinge. However, this type of connection is complicated to assemble, requires screws for fixing, and the hinges are exposed after installation, resulting in a short service life. This affects both the assembly speed and the service life after the device is refitted.

[0032] Based on this, the present invention proposes a rotating connector 100. Please refer to [link / reference needed]. Figures 2 to 4 In one embodiment of this utility model, the rotating connector 100 is used to rotatably connect two cooperating components. The rotating connector 100 includes a mounting base 1, a rotating shaft 2, and a connecting assembly 3. The mounting base 1 is used to install on one of the components. The left end face of the mounting base 1 has a mounting groove 11. The mounting groove 11 has a front end wall 11A and a rear end wall 11B arranged in the front-rear direction. At least one of the front end wall 11A and the rear end wall 11B is a first mating part. The rotating shaft 2 is used to install on the other component. The rotating shaft 2 extends in the front-rear direction and is disposed in the mounting groove 11. The rotating shaft 2 has a front end portion 2A and a rear end portion 2B arranged in the front-rear direction. At least one of the front end portion 2A and the rear end portion 2B is a second mating part. The connecting assembly 3 includes at least one connector coaxially disposed with the rotating shaft 2. The connector is disposed at the first mating part and connects to the second mating part.

[0033] The technical solution of this utility model is to set the mounting base 1 in one component and install the rotating shaft 2 in another component and set it in the mounting groove 11 of the mounting base 1. In this way, the rotating shaft 2 can be directly placed in the mounting groove 11 for installation. The mounting base 1 and the rotating shaft 2 are connected by the connecting component 3. No other equipment or parts are needed for installation. The assembly is convenient. Moreover, the connecting component 3 is hidden in the mounting groove 11. After installation, it is not easily affected by the external environment and has a long service life.

[0034] It should be noted that the first mating part and the second mating part need to be connected for mating. The mating occurs when the end wall of the mounting groove 11 and the end face of the rotating shaft 2 face each other. Therefore, when the front end 2A of the rotating shaft 2 is the first mating part, the front end wall 11A of the mounting groove 11 is the second mating part; when the rear end wall 11B of the mounting groove 11 is the first mating part, the front end wall 11A of the mounting groove 11 is the second mating part. In one embodiment, both the front end wall 11A and the rear end wall 11B of the mounting groove 11 are first mating parts, and both the front end 2A and the rear end 2B of the rotating shaft 2 are second mating parts. In another embodiment, the front end wall 11A of the mounting groove 11 is the first mating part, the rear end wall 11B is the second mating part, and both the front end 2A and the rear end 2B of the rotating shaft 2 are second mating parts.

[0035] Furthermore, to facilitate rotation, the mounting groove 11 is vertically continuous, meaning the mounting groove 11 only has a front wall 11A and a rear wall 11B. This allows for a larger rotation angle of the rotating shaft 2, facilitating installation and operation.

[0036] The connecting component 3 can be a rotating shaft structure or a bearing structure, as long as it can realize the mating connection between the first mating part and the second mating part. In one embodiment of this utility model, the front end wall 11A or the rear end wall 11B both serve as the first mating part, and the front end 2A or the rear end 2B both serve as the second mating part. One of the first mating parts or the second mating part is provided with a limiting hole 33, and the other is equipped with a connecting member. The two connecting members are respectively inserted into the two limiting holes 33.

[0037] The connector can be rod-shaped or hollow column-shaped to enable rotational engagement between the first and second mating parts. In one embodiment, when the connector is hollow column-shaped, the front end wall 11A is the first mating part, the front end 2A is the second mating part that mates with the front end wall 11A, the rear end wall 11B is the second mating part, and the rear end 2B is the second mating part that mates with the rear end wall 11B. The front end wall 11A and rear end wall 11B of the mounting groove 11 each form an inwardly projecting post, which is the connector.

[0038] In conjunction with the above embodiments, and referring to... Figures 5 to 6In one embodiment of this utility model, the front end wall 11A has a first connecting hole 12, which faces one of the two components; the two connecting members include a first connecting member 31, which is disposed on the front end wall 11A, and a second connecting hole 311 extending axially from the first connecting member 31; the interior of the rotating shaft 2 forms a first cavity 21, and the front end face of the rotating shaft 2 has a limiting hole 33 communicating with the first cavity 21, which corresponds to the second connecting hole 311; the rotating shaft 2 has a third connecting hole 23, which faces the other of the two components. Thus, a connecting channel hidden between the two components is formed, unaffected by rotation. The connecting channel allows components to pass through. Taking the blood transfusion and infusion warmer 200 as an example, this connecting channel allows cables to pass through, thereby improving the service life of the cables.

[0039] In one embodiment of the present invention, the connecting component 3 further includes a protective sleeve 34, the middle part of which is disposed in the second connecting hole 311, and the two ends of the protective sleeve 34 extend into the first connecting hole 12 and the limiting hole 33, respectively.

[0040] In one embodiment of this utility model, the protective sleeve 34 is made of an elastomer material. Elastomer materials possess good elasticity and flexibility, and are a type of material that can recover its original shape after being deformed by an applied external force, thus protecting components passing through the connecting channel from external forces. Specifically, the protective sleeve 34 can be made of elastomer materials such as nitrile rubber or silicone rubber.

[0041] In one embodiment of this utility model, the rotating shaft 2 has a second cavity 22 inside, and the rearward end face of the rotating shaft 2 has a through hole 24 communicating with the second cavity 22; the two connecting members include a second connecting member 32, which includes a compression elastic member 322 and a push-off shaft 321; the compression elastic member 322 is disposed in the second cavity 22, and one end of the compression elastic member 322 abuts against the cavity wall of the second cavity 22; the push-off shaft 321 is movably disposed in the second cavity 22 in the front-rear direction, one end abuts against the compression elastic member 322, and the other end extends out from the through hole 24 and abuts against the rear end wall 11B. Thus, during installation, only the push-off shaft 321 needs to be pressed to compress the push-off shaft 321 into the second cavity 22, and then the rotating shaft 2 is placed in the mounting groove 11, so as to facilitate installation, disassembly and replacement.

[0042] It should be noted that the first cavity 21 and the second cavity 22 are arranged in the front-rear direction, and their specific positional relationship depends on the materials of the compression elastic element 322 and the abutment shaft 321. In one embodiment, the rotating shaft 2 has a cavity inside, and the cavity is separated by a partition to form the first cavity 21 and the second cavity 22.

[0043] In one embodiment of the present invention, a limiting hole 33 is provided in the rear end wall 11B of the mounting base 1, and the abutting shaft 321 is arranged with a gradually decreasing diameter from front to back, forming an abutting section and a limiting section in sequence. The abutting section abuts against the rear end wall 11B of the mounting base 1, and the limiting section is inserted into the limiting hole 33.

[0044] In conjunction with the above embodiments, and referring to... Figure 1 This utility model also proposes a blood transfusion and infusion warmer 200, which includes a base 201, a cover 202, and a rotating connector 100; the base 201 is equipped with a power connector; the cover 202 is rotatably connected to the base 201; the rotating connector 100 is used to rotatably connect two cooperating parts, and the rotating connector 100 includes a mounting base 1, a rotating shaft 2, and a connecting assembly 3; the mounting base 1 is used to install one of the parts, and a mounting groove 11 is provided on the left end face of the mounting base 1. The device includes a front end wall 11A and a rear end wall 11B arranged in a front-rear direction, at least one of which is a first mating part; a rotating shaft 2 is used for mounting on another component, the rotating shaft 2 extends in a front-rear direction and is disposed in a mounting groove 11, the rotating shaft 2 has a front end portion 2A and a rear end portion 2B arranged in a front-rear direction, at least one of which is a second mating part; a connecting assembly 3 includes at least one connector coaxially arranged with the rotating shaft 2, the connector is disposed at the first mating part and connects to the second mating part. With this configuration, the connecting assembly 3 reduces the overall size of the blood transfusion and infusion warmer 200, resulting in a compact structure and aesthetically pleasing appearance. Since the blood transfusion and infusion warmer 200 adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0045] It should be noted that the mounting base 1 can be installed on the base 201 or on the cover 202; furthermore, the mounting base 1 and the base 201 are integrally formed, and the rotating shaft 2 and the cover 202 are integrally formed. In this way, the installation of the blood transfusion and infusion warmer 200 is achieved by its own structure, without the need for other tools and parts, resulting in low material and assembly costs.

[0046] In one embodiment of this utility model, the front end wall 11A is provided with a first connecting hole 12, which faces one of the two components; the two connecting members include a first connecting member 31, which is disposed on the front end wall 11A and has a second connecting hole 311 extending along its axial direction; the interior of the rotating shaft 2 forms a first cavity 21, and the front end face of the rotating shaft 2 is provided with a limiting hole 33 communicating with the first cavity 21, which corresponds to the second connecting hole 311; the rotating shaft 2 is provided with a third connecting hole 23, which faces the other of the two components; the blood transfusion and infusion warmer 200 also includes a first circuit board 203, a second circuit board 204, and a flexible flat cable 205; the first circuit board 203 is disposed on the base 201; the second circuit board 204 is disposed on the cover 202; the flexible flat cable 205 passes through the first connecting hole 12, the second connecting hole 311, the first cavity 21, and the third connecting hole 23, and electrically connects the first circuit board 203 and the second circuit board 204. Thus, the flexible flat cable 205 connecting the first circuit board 203 and the second circuit board 204 is concealed through the first connecting hole 12, the second connecting hole 311, the first cavity 21, and the third connecting hole 23. The route of the flexible flat cable 205 is not visible from the outside. The blood transfusion and infusion warmer 200 has a neat and beautiful appearance. Moreover, because the flexible flat cable 205 passes through the inside of the rotating shaft 2, the bending and rotation angles of the flexible flat cable 205 are smaller, resulting in a longer service life.

[0047] In one embodiment of this utility model, the connecting component 3 further includes a protective sleeve 34, which is fitted over the outside of the flexible flat cable 205. Thus, the protective sleeve 34 can protect the flexible flat cable 205 passing through the connecting channel from external forces, thereby improving the service life of the flexible flat cable 205.

[0048] In one embodiment of this utility model, a fixing member 206 for fixing the flexible flat cable 205 is provided at the third connecting hole 23. The fixing member 206 can be sponge or rubber, which presses the flexible flat cable 205 and adheres it to the base 201 or cover 202 of the hole wall of the third connecting hole 23, allowing the flexible flat cable 205 to only twist at a small angle, thereby extending the service life of the flexible flat cable 205.

[0049] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A rotating connector for rotatably connecting two mating parts, characterized in that, include: A mounting base is provided for mounting one of the components. The left end face of the mounting base is provided with a mounting groove. The mounting groove has a front end wall and a rear end wall arranged in a front-rear direction. At least one of the front end wall and the rear end wall is a first mating part. A pivot for mounting on another component, the pivot extending in a front-to-back direction and disposed within the mounting groove, the pivot having a front end and a rear end disposed in a front-to-back direction, at least one of the front end and the rear end being a second mating portion; and... A connecting assembly, the connecting assembly including at least one connector coaxially disposed with the rotating shaft, the connector being disposed at the first mating part and connected to the second mating part.

2. The rotating connector as described in claim 1, characterized in that, The front end wall or the rear end wall both serve as the first mating part, and the front end or the rear end both serve as the second mating part. One of the first mating parts or the second mating part is provided with a limiting hole, and the other is used to install the connector. The two connectors are respectively inserted into the two limiting holes.

3. The rotating connector as described in claim 2, characterized in that, The front end wall is provided with a first connection hole, which faces one of the two components; The two connectors include a first connector disposed on the front end wall, and a second connecting hole extending axially from the first connector. The shaft has a first cavity inside, and a limiting hole communicating with the first cavity is provided on the front end face of the shaft. The limiting hole is corresponding to the second connecting hole. The shaft has a third connecting hole facing the other of the two components.

4. The rotating connector as described in claim 3, characterized in that, The connecting assembly also includes a protective sleeve, the middle part of which is disposed in the second connecting hole, and the two ends of which extend into the first connecting hole and the limiting hole, respectively.

5. The rotating connector as described in claim 4, characterized in that, The protective sleeve is made of an elastomer material.

6. The rotating connector as described in claim 2, characterized in that, The rotating shaft has a second cavity inside, and the rearward end face of the rotating shaft has a through hole communicating with the second cavity; the two connecting members include a second connecting member, which includes: A compression elastic element is disposed in the second cavity, with one end of the compression elastic element abutting against the cavity wall of the second cavity; and, The abutting shaft is movably disposed in the second cavity along the front-back direction, with one end abutting against the compression elastic element and the other end extending out from the through hole and abutting against the rear end wall.

7. The rotating connector as described in claim 6, characterized in that, The rear end wall of the mounting base has a limiting hole, and the abutting shaft is arranged with a gradually decreasing diameter from front to back to form an abutting section and a limiting section in sequence. The abutting section abuts against the rear end wall of the mounting base, and the limiting section is inserted into the limiting hole.

8. A blood transfusion and infusion warmer, characterized in that, include: The base is equipped with a power connector. The cover is rotatably connected to the base; as well as, The rotating connector as described in any one of claims 1-7 is used to rotatably connect the mating base and the cover.

9. The blood transfusion and infusion warmer as described in claim 8, characterized in that, The front end wall has a first connecting hole facing one of the two components; the two connecting members include a first connecting member disposed on the front end wall, and a second connecting hole extending axially from the first connecting member; the interior of the rotating shaft forms a first cavity, and the front end face of the rotating shaft has a limiting hole communicating with the first cavity, the limiting hole corresponding to the second connecting hole; the rotating shaft has a third connecting hole facing the other of the two components. The blood transfusion and infusion warmer also includes: A first circuit board is disposed on the base; A second circuit board is disposed on the cover; and, A flexible flat cable passes through the first connecting hole, the second connecting hole, the first cavity, and the third connecting hole to electrically connect the first circuit board and the second circuit board.

10. The blood transfusion and infusion warmer as described in claim 9, characterized in that, The connection assembly further includes a protective sleeve fitted over the outside of the flexible flat cable; and / or, A fixing element for securing the flexible flat cable is provided at the third connecting hole.

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