Locking device for plugging head of medical instrument

Abstract

The utility model discloses a medical instrument plugging head locking device which comprises a medical instrument body, a socket is fixedly arranged on the rear side of the medical instrument body, two symmetrical connecting cylinders are arranged on the outer side of the socket, the connecting cylinders are fixedly connected with the medical instrument body, fixing sockets are formed in the tops of the connecting cylinders, and the fixing sockets are fixedly connected with the socket. A plug is inserted into the socket, two symmetrical connecting pieces are fixedly arranged on the outer surface of the plug, the connecting pieces and the connecting cylinder are arranged in an inserted mode, and a mounting cavity is formed in the top of one end of each connecting piece. Through the design, under the clamping connection of the fixed clamping block and the fixed jack, the connecting piece and the connecting cylinder can be fixedly connected, so that the fixed connection of the plug and the socket can be realized, and meanwhile, under the action of the mounting frame, the fixed clamping block can be limited and blocked, so that the problem that the plug and the socket are loosened due to accidental touch can be solved; therefore, the stability when the plug and the socket are connected can be ensured.

Description

Technical Field

[0001] The utility model relates to the field related to medical device joints, in particular to a locking device for a plug-in head of a medical device. Background Art

[0002] Medical devices are instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items, including necessary computer software, used directly or indirectly on the human body to provide information for medical or diagnostic purposes by examining samples from the human body.

[0003] In the prior art, medical devices need to be connected to other supporting devices when in use, and the connection is completed by the cooperation between a plug head and a plug socket. The plug heads used in medical devices on the market are mainly threaded locking methods. Although the connection is stable and relatively reliable, it is quite inconvenient to disassemble and assemble.

[0004] There is an existing authorized patent number 202223111985.4 for a medical device plug-in head locking device. Although this patent solves the above-mentioned problems, the pull rod 22 in this patent lacks a limiting or blocking component. Such a locking device may cause the plug and the socket to loosen during use or when accidentally touched. Such a locking device is difficult to ensure the stability of the plug against falling off. Based on this, the utility model provides a medical device plug-in head locking device. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model proposes a locking device for a medical device plug and unplug head to solve the above problems.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a medical device plug-in head locking device, comprising a medical device body, a socket is fixedly provided on the rear side of the medical device body, two symmetrical connecting cylinders are arranged on the outside of the socket, and the connecting cylinder is fixedly connected to the medical device body, a fixed socket is opened on the top of the connecting cylinder, a plug is inserted into the inside of the socket, and two symmetrical connecting pieces are fixedly provided on the outer surface of the plug, the connecting piece is plugged into the connecting cylinder, a mounting cavity is opened on the top of one end of the connecting piece, a reset spring is fixedly provided on the inner bottom of the mounting cavity, a fixed card block is fixedly provided on the top of the reset spring, and the fixed card block is slidably connected to the mounting cavity, a mounting frame is fixedly provided on the top of the connecting cylinder, a fixed guide rail is fixedly provided on the inner side of the mounting frame, a lower plate is slidably connected to the inside of the fixed guide rail, a tension spring is fixedly provided on the top of the lower plate, and the tension spring is fixedly connected to the mounting frame, a connecting rod is fixedly provided on the bottom of the lower plate, and the connecting rod is slidably connected to the mounting frame, and a downward push block is fixedly provided at the bottom of the connecting rod.

[0007] As a preferred technical solution of the utility model, the bottom width of the downward push block is configured to match the upper cross-sectional width of the fixed clamping block.

[0008] As a preferred technical solution of the utility model, the lower height of the downward push block is set to be the same as the inner height of the fixed socket.

[0009] As a preferred technical solution of the utility model, the upper section of the fixed block is inclined, and the top of the fixed block is flat.

[0010] As a preferred technical solution of the utility model, the inner section of the fixed guide rail is set in a T-shape, and the side section of the lower plate is set in a T-shape.

[0011] As a preferred technical solution of the utility model, the internal width of the connecting tube is adapted to the cross-sectional width of the connecting piece, and the internal cross-section of the connecting tube and the cross-section of the connecting piece are both rectangular.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] 1. Through this design, the connector and the connecting tube can be fixedly connected under the snap connection between the fixed card block and the fixed socket, so that the fixed connection between the plug and the socket can be achieved. At the same time, under the action of the installation frame, the fixed card block can be limited and blocked, so that the problem of loosening of the plug and the socket caused by accidental touch can be solved, thereby ensuring the stability of the connection between the plug and the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 For the utility model Figure 1 One of the schematic diagrams of the partially separated three-dimensional structure;

[0016] Figure 3 For the utility model Figure 1 The second schematic diagram of the partially separated three-dimensional structure;

[0017] Figure 4 It is a schematic diagram of the cross-section front view structure of the connecting card block of the utility model.

[0018] Among them: 1. Medical device body; 3. Plug; 4. Socket; 5. Connector; 51. Mounting cavity; 52. Reset spring; 53. Fixed block; 6. Connecting tube; 61. Fixed socket; 7. Mounting frame; 71. Fixed guide rail; 72. Push block; 73. Connecting rod; 74. Lowering plate; 75. Tension spring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Embodiment:

[0021] like Figure 1-4As shown, the utility model provides a locking device for a plug-in head of a medical device, comprising a medical device body 1, a socket 4 is fixedly arranged on the rear side of the medical device body 1, two symmetrical connecting tubes 6 are arranged on the outer side of the socket 4, and the connecting tube 6 is fixedly connected to the medical device body 1, a fixed socket 61 is provided on the top of the connecting tube 6, a plug 3 is plugged into the inside of the socket 4, two symmetrical connecting members 5 are fixedly arranged on the outer surface of the plug 3, the connecting member 5 is plugged into the connecting tube 6, an installation cavity 51 is provided on the top of one end of the connecting member 5, a reset spring 52 is fixedly arranged on the inner bottom of the installation cavity 51, and a fixed block 5 is fixedly arranged on the top of the reset spring 52 3, and the fixed card block 53 is slidably connected with the installation cavity 51, the top of the connecting tube 6 is fixedly provided with a mounting frame 7, the inner side of the mounting frame 7 is fixedly provided with a fixed guide rail 71, the inner side of the fixed guide rail 71 is slidably connected with a lowering plate 74, the top of the lowering plate 74 is fixedly provided with a tension spring 75, and the tension spring 75 is fixedly connected with the mounting frame 7, the bottom of the lowering plate 74 is fixedly provided with a connecting rod 73, and the connecting rod 73 is slidably connected with the mounting frame 7, and the bottom end of the connecting rod 73 is fixedly provided with a downward push block 72; when the socket 4 and the connecting member 5 are installed, the plug 3 is plugged into the socket 4, and the connecting member 5 is connected with the connecting tube 6 at the same time. When the right-angled side of the connector 5 is fitted with the end of the connecting tube 6, the fixed card block 53 corresponds to the fixed socket 61. Under the elastic extension of the reset spring 52, the fixed card block 53 can be connected with the fixed socket 61. In this way, the plug 3 and the socket 4 are fixedly connected. At the same time, under the limit block of the mounting frame 7, accidental contact with the fixed card block 53 can be avoided, thereby ensuring the stability of the connection between the plug 3 and the socket 4. When the plug 3 and the socket 4 are separated, the downward moving plate 74 is squeezed downward. When the downward moving plate 74 moves downward, the connecting rod 73 can be driven downward, and when the connecting rod 73 moves downward, the downward pressing push block can be driven 72 moves downward, so that the push block 72 presses the fixed card block 53 and squeezes the fixed card block 53 so that the fixed card block 53 is received in the installation cavity 51. At this time, the connecting piece 5 can be pulled out from the connecting tube 6, so that the socket 4 is separated from the plug 3. Through this design, under the snap connection between the fixed card block 53 and the fixed socket 61, the connecting piece 5 and the connecting tube 6 can be fixedly connected, so that the fixed connection between the plug 3 and the socket 4 can be achieved. At the same time, under the action of the installation frame 7, the fixed card block 53 can be limited and blocked, so as to solve the problem of loosening of the plug 3 and the socket 4 caused by accidental touch, thereby ensuring the stability of the connection between the plug 3 and the socket 4.

[0022] Among them, the bottom width of the downward push block 72 is adapted to the upper cross-sectional width of the fixed block 53; by setting the sizes of the downward push block 72 and the fixed block 53 to be favorable, the downward push block 72 can be made more comprehensive and stable when squeezing the top of the fixed block 53 downward.

[0023] Among them, the lower height of the downward push block 72 is set to be the same as the internal height of the fixed socket 61; by setting the dimensions of the downward push block 72 and the fixed socket 61, when the downward push block 72 is inserted into the fixed socket 61, the fixed clamping block 53 can be squeezed, and at the same time, the bottom of the downward push block 72 is flush with the top of the connecting member 5. At this time, the connecting member 5 can be taken out from the inside of the connecting tube 6, and the fixed clamping block 53 will not cause any obstruction to the connecting tube 6.

[0024] Among them, the upper section of the fixed block 53 is set in an inclined manner, and the top of the fixed block 53 is set in a flat manner; by setting the upper inclined surface of the fixed block 53, when the connecting member 5 is inserted into the connecting tube 6, the end of the connecting tube 6 is squeezed, and the inclined surface of the fixed block 53 can be squeezed to be retracted into the installation cavity 51. At this time, the connecting member 5 is inserted into the connecting tube 6, and when the fixed block 53 corresponds to the fixed socket 61, the fixed block 53 can be engaged and fixed with the fixed socket 61 under the elastic extension of the reset spring 52.

[0025] Among them, the internal section of the fixed guide rail 71 is set in a T-shape, and the side section of the lower plate 74 is set in a T-shape; by setting the shape of the fixed guide rail 71 and the side of the lower plate 74, the stability of the lower plate 74 and the fixed guide rail 71 when they are slidingly connected can be ensured, and at the same time, the lower plate 74 can be limited to avoid the position of the lower plate 74 from being offset.

[0026] Among them, the internal width of the connecting tube 6 is adapted to the cross-sectional width of the connecting piece 5, and the internal cross-section of the connecting tube 6 and the cross-section of the connecting piece 5 are both rectangular settings; by setting the cross-sectional size and shape of the connecting piece 5 and the connecting tube 6, the stability of the connecting piece 5 and the connecting tube 6 when plugged in can be guaranteed, and at the same time, the fixed block 53 on the connecting piece 5 and the fixed socket 61 on the connecting tube 6 can be accurately positioned, so that the fixed block 53 and the fixed socket 61 can be more firmly engaged.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A locking device for a medical device plug-in head, comprising a medical device body (1), characterized in that: A socket (4) is fixedly provided on the rear side of the medical device body (1), two symmetrical connecting tubes (6) are provided on the outer side of the socket (4), and the connecting tube (6) is fixedly connected to the medical device body (1), a fixed socket (61) is provided on the top of the connecting tube (6), a plug (3) is inserted into the interior of the socket (4), two symmetrical connecting members (5) are fixedly provided on the outer surface of the plug (3), the connecting members (5) are plugged into the connecting tube (6), a mounting cavity (51) is provided on the top of one end of the connecting member (5), a reset spring (52) is fixedly provided on the inner bottom of the mounting cavity (51), and the top end of the reset spring (52) is fixedly provided. A fixed card block (53) is provided, and the fixed card block (53) is slidably connected to the installation cavity (51); a mounting frame (7) is fixedly provided on the top of the connecting tube (6); a fixed guide rail (71) is fixedly provided on the inner side of the mounting frame (7); a downward plate (74) is slidably connected inside the fixed guide rail (71); a tension spring (75) is fixedly provided on the top of the downward plate (74), and the tension spring (75) is fixedly connected to the installation frame (7); a connecting rod (73) is fixedly provided on the bottom of the downward plate (74), and the connecting rod (73) is slidably connected to the installation frame (7); a downward push block (72) is fixedly provided at the bottom end of the connecting rod (73).

2. A medical device plug-in head locking device according to claim 1, characterized in that: The bottom width of the downward push block (72) is configured to match the upper cross-sectional width of the fixed clamping block (53).

3. A medical device plug-in head locking device according to claim 1, characterized in that: The lower height of the downward push block (72) is set to be the same as the inner height of the fixed socket (61).

4. A medical device plug-in head locking device according to claim 1, characterized in that: The upper section of the fixed block (53) is arranged in an inclined manner, and the top of the fixed block (53) is arranged in a flat manner.

5. A medical device plug-in head locking device according to claim 1, characterized in that: The internal section of the fixed guide rail (71) is arranged in a T-shape, and the side section of the downward moving plate (74) is arranged in a T-shape.

6. A medical device plug-in head locking device according to claim 1, characterized in that: The internal width of the connecting tube (6) is matched to the cross-sectional width of the connecting piece (5), and the internal cross-section of the connecting tube (6) and the cross-section of the connecting piece (5) are both rectangular.

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