CN113018677A

CN113018677A - Auxiliary device for plugging and unplugging quick connector

Info

Publication number: CN113018677A
Application number: CN202110224161.9A
Authority: CN
Inventors: 高慧; 陈正龙; 林玲
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-06-25
Anticipated expiration: 2041-03-01
Also published as: CN113018677B

Abstract

The invention belongs to the technical field of quick connectors and discloses an auxiliary device for plugging and unplugging a quick connector, which comprises a base frame, a supporting plate, a push rod, a pressing part and a plugging part, wherein the base frame comprises a first connecting plate, a second connecting plate, a third connecting plate, a fixed handle and a fixing plate, the fixed handle is connected with a movable handle and a second driving block, the movable handle is connected with a first driving block, the push rod penetrates through a first reset spring and a second reset spring, a sucking disc is fixedly bonded on the lower side of the supporting plate, the pressing part is in sliding connection with the first connecting plate, the plugging part is in sliding connection with the second connecting plate, the third connecting plate is in rotating connection with a rotating wheel, and the rotating wheel is in rotating connection with a; the invention solves the problems that fingers of operators are easy to be damaged by clamping and are difficult to operate when the quick connector is plugged and pulled in the prior art, and is suitable for plugging and pulling the quick connector.

Description

Auxiliary device for plugging and unplugging quick connector

Technical Field

The invention relates to the technical field of quick connectors, in particular to an auxiliary device for plugging and unplugging a quick connector.

Background

The quick joint is divided into a pneumatic quick joint, a hydraulic quick joint and other various fluid quick joints, and is a connecting device for quickly connecting or disconnecting a pipeline and realizing quick assembly and disassembly; the quick connector consists of a male plug and a female plug, the male plug and the female plug are respectively equivalent to a one-way valve, a valve core is arranged in the male plug and the female plug, when the male plug and the female plug are not inserted, the one-way valve is closed under the action of a spring force, and the male plug and the female plug are in independent sealing states; after the male plug is inserted into the female plug, the spring is compressed, the valve cores of the male plug and the female plug are pushed away at the same time, the two pipelines are communicated, and fluid can circulate; the quick connector has a bidirectional non-return function, so that the pipeline is not leaked when the quick connector is disconnected, the quick connector is generally applied to an ICU (Intensive Care Unit), one end of a medical instrument such as a drainage tube, a drainage bottle, an air pressure gauge and the like is connected with a male connector, a negative pressure device is connected with a female connector, when the medical instrument is connected with the negative pressure device, a nurse worker needs to compress a spring at one end of the female connector with one hand and compress the spring at one end of the male connector with the other hand and then connect the male connector with the female connector, the quick connector is very laborious to plug and unplug, and plug the quick connector are more difficult for the nurse worker in the ICU, particularly, the majority of the; the drainage bottle, the barometer and the like are frequently disassembled and assembled in an ICU ward, the distance between a medical instrument and a negative pressure generator is narrow in the plugging and unplugging process, the sight line is shielded by the instrument and equipment, even one hand holds the instrument and equipment when the connector is plugged and unplugged, the other hand gropingly presses a female connector downwards and then plugs on or unloads the connector, the operation is inconvenient, the hand of a nurse is often pinched by the female connector when the female connector is pressed downwards in the plugging and unplugging process, fingers are pinched between the male connector and the female connector when the female connector is plugged and the instrument and equipment are also often broken or damaged, and therefore an auxiliary device for plugging and unplugging the quick connector is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide an auxiliary device for plugging and unplugging a quick connector, and aims to solve the problems that fingers of an operator are easily clamped and damaged and the operation is difficult when the quick connector is plugged and unplugged in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

the basic technical scheme provided by the invention is as follows: an auxiliary device for plugging and unplugging a quick connector comprises a base frame, a support plate, a push rod, a pressing part and a plugging part, wherein the base frame comprises a first connecting plate, a second connecting plate, a third connecting plate, a fixed handle and a fixed plate, the fixed handle is rotationally connected with a movable handle, the upper end of the movable handle is rotationally connected with a first driving block, the upper end of the fixed handle is rotationally connected with a second driving block, the second driving block is provided with a through hole, the first driving block is provided with a wedge-shaped hole, the push rod is abutted against the through hole and the wedge-shaped hole, the push rod is sequentially arranged on the second driving block, the fixed handle, the first driving block and the fixed plate in a penetrating way, the push rod is also provided with a first reset spring and a second reset spring in a penetrating way, the first reset spring is arranged between the first driving block and the fixed plate, the second reset spring is arranged between the second driving block and the fixed handle, the fixed handle is further provided with a limit boss used for balancing the elasticity of the movable handle, the support plate is fixedly connected to the right end of the first connecting plate, the pressing part is connected with the right end of the push rod, the pressing part is connected with the first connecting plate in a sliding mode, the plugging part is connected with the second connecting plate in a sliding mode, the third connecting plate is connected to the lower side of the first connecting plate, the third connecting plate is rotatably connected with a rotating wheel, the rotating wheel is rotatably connected with a first crank and a second crank, the free end of the first crank is rotatably connected with the pressing part, the free end of the second crank is rotatably connected with the plugging part, the rotating wheel, the first crank, the pressing part and the first connecting plate form a crank-slider structure, and the rotating wheel, The second crank, the plugging portion and the second connecting plate also form a crank sliding block mechanism, and the second crank is a telescopic rod.

The principle of the basic technical scheme is as follows: when the device is used, the supporting plate is abutted against the surface of the negative pressure cabinet, the movable handle is rotationally connected with the first driving block, the rotating handle is pinched to enable the rotating handle to rotate, the first driving block rotates along with the first driving block, the push rod is abutted against the upper sides of the through holes of the first driving block and the second driving block, the rotating first driving block pushes the push rod to move towards the right side, the push rod drives the second driving block to rotate towards the right side, the first driving block resets under the action of the first reset spring after the movable handle rotates to the extreme position, the limit boss is used for balancing the movable handle, the second driving block resets under the action of the second reset spring, the wedge-shaped hole in the first driving block is abutted against the push rod, labor can be saved when the movable handle is rotated, the push rod can be prevented from resetting, the rotating handle is pinched repeatedly to enable the movable handle to rotate periodically, and the push rod can move; the pressing part is abutted against the convex surface of the female connector, the plugging part is abutted against the male connector, the right side of the push rod is connected with the pressing part, and the push rod pushes the pressing part to move towards the right side continuously in the process of periodically and repeatedly pinching the movable handle, so that the female connector is pressed; the rotating wheel, the first crank, the pressing part and the first connecting plate form a crank-slider structure, the rotating wheel, the second crank, the plugging part and the second connecting plate also form a crank-slider mechanism, the pressing part moving towards the right side pushes the rotating wheel to rotate, and the rotating wheel pushes the plugging part to slide on the second connecting plate under the action of the second crank; the process of connecting the quick connector comprises the following steps: the length and the connecting position of the second crank are adjusted, so that the plugging part also moves towards the right side, namely when the pressing part presses the female connector, the plugging part applies force towards the right side to the male connector to enable the male connector to be connected with the female connector, and the plugging of the quick connector is realized; in the process of pulling out the quick connector, the length and the connection position of the second crank are adjusted, so that the plugging part moves towards the left side, namely when the pressing part presses the female connector, the plugging part applies force towards the left side to the male connector to separate the male connector from the female connector, and the quick connector is pulled out.

The beneficial effects of the basic technical scheme are as follows: when the quick connector is plugged, one hand stabilizes one end of the male connector, the other hand repeatedly pinches the rotating handle to realize the plugging and unplugging of the quick connector, the visual operation is realized, the hand is not required to be groped to press the female connector, and the problems that the fingers of an operator are easily clamped and damaged and the operation is difficult when the quick connector is plugged are solved; simultaneously, when pinching the twist grip repeatedly, pressing the splenium and realizing the stepless motion with plug portion under the effect of push rod, easy operation can adapt to the quick-operation joint of different strokes through the length of adjusting the connecting plate, and application range is wide, and the stepless exerts pressure to the female joint, and effectual avoiding exerts sufficient power suddenly on the female joint, and one hand of firm male joint is too late to react, and the constraint of male joint one end loses power suddenly and accident drops.

Preferably, the pressing portion comprises a first clamping plate and a first sliding block, and the first clamping plate is fixedly connected with the first sliding block.

Through the setting, to the quick-operation joint of different pipe diameters, select the first grip block that suits and can realize pressing down female joint, and need not to change whole splenium, change convenient and fast.

Preferably, the first connecting plate is provided with a first sliding groove, the first sliding block is provided with a first guide block, and the first guide block is in sliding connection with the first sliding groove.

Through the arrangement, the first guide block and the first sliding groove are matched, so that the first sliding block is guaranteed to do horizontal linear motion along the first connecting plate, and the pressing effect of the female joint is guaranteed.

Preferably, the inserting and pulling part comprises a second clamping plate and a second sliding block, and the second clamping plate is fixedly connected with the second sliding block.

Through the arrangement, the second clamping plate which is adaptive to the quick connectors with different pipe diameters is selected to realize the plugging and unplugging of the male connector, the whole plugging and unplugging part does not need to be replaced, and the replacement is convenient and quick.

Preferably, the second connecting plate is provided with a second sliding groove, the second sliding block is provided with a second guide block, and the second guide block is in sliding connection with the second sliding groove.

Through the arrangement, the second guide block is matched with the second sliding groove, so that the second sliding block is guaranteed to do horizontal linear motion along the second connecting plate, and the plugging effect on the male connector is guaranteed.

Preferably, an anti-slip rubber is connected to the inner side of the second clamping plate.

Through the setting, when the second grip block plug male joint, what rely on is the frictional force between second grip block and the male joint, and anti-skidding rubber has great coefficient of friction, and under the effect of the equal positive pressure of expert, the effect of plug male joint is better.

Preferably, the number of the first clamping plate and the second clamping plate is two, and the first clamping plate and the second clamping plate are connected through bolts and nuts.

Through the setting, first grip block and second grip block are adjustable size, when the quick-operation joint of the different pipe diameters of adaptation, can adapt to through adjusting two grip blocks, and need not to change the grip block, have further improved the application scope of device, have saved medical personnel's time and energy.

Preferably, the second crank comprises a first connecting rod, a second connecting rod and a spherical hinge head, one end of the first connecting rod is rotatably connected with the rotating wheel, the other end of the first connecting rod is connected with one end of the second connecting rod through threads, the other end of the second connecting rod is hinged with the spherical hinge head, and the spherical hinge head is rotatably connected with the plugging part.

Through the above-mentioned setting, one of them: the first connecting rod and the second connecting rod are connected through threads to form a telescopic rod, and the length requirement of the device on the second crank under two working conditions of plugging and unplugging the quick connector can be met; the second step is as follows: the second crank is connected with the plugging portion through the spherical hinge head in a rotating mode, the length of the second crank can be adjusted without being disassembled, the length of the second crank is adjusted, namely the length of the crank of the slider-crank mechanism is adjusted, the relationship between the rotating angle of the rotating wheel and the sliding distance of the plugging portion on the second connecting plate is directly affected, the length of the second crank is adjusted to adapt to different instruments, and the plugging effect is better.

Preferably, a suction cup is attached to the underside of the support plate.

Through the setting, under the effect of sucking disc for the backup pad is fixed with the surface contact position of negative pressure cabinet, avoids when plug quick-operation joint, and the backup pad slides to shift and leads to medical personnel injured or bump bad instrument and equipment, has improved the security performance of device.

Drawings

FIG. 1 is a front view of an auxiliary device for inserting and removing a quick connector according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a portion of FIG. 1 taken along direction B;

FIG. 4 is a partial view of a rotating wheel portion of an auxiliary device for inserting and removing a quick connector according to the present invention;

FIG. 5 is a partial view of a pressing portion of an auxiliary device for inserting and removing a quick connector according to the present invention;

FIG. 6 is a partial cross-sectional view of an auxiliary device inserting and pulling portion for inserting and pulling a quick connector according to the present invention;

the names of corresponding labels in the drawings are:

the base frame 1, the first connecting plate 1A, the second connecting plate 1B, the third connecting plate 1C, the fixed handle 1D, the fixed plate 1E, the supporting plate 2, the movable handle 3, the push rod 4, the second driving block 5, the second return spring 6, the first driving block 7, the first return spring 8, the pressing part 9, the inserting and pulling part 10, the rotating wheel 11, the first crank 12, the second crank 13, the first connecting rod 13A, the second connecting rod 13B, the spherical hinge 13C, the sucking disc 14, the second sliding block 15, the second guide block 15A, the second clamping plate 16, the anti-skidding rubber 17, the first sliding block 18, the first guide block 18A and the first clamping plate 19.

Detailed Description

The invention is described in further detail below with reference to the following figures and embodiments:

as shown in fig. 1 to 6, an auxiliary device for inserting and pulling a quick coupling comprises a base frame 1, a support plate 2, a push rod 4, a pressing part 9 and an inserting and pulling part 10, wherein the base frame 1 comprises a first connecting plate 1A, a second connecting plate 1B, a third connecting plate 1C, a fixed handle 1D and a fixing plate 1E, the fixed handle 1D is rotatably connected with a movable handle 3 through a pin shaft, the upper end of the movable handle 3 is rotatably connected with a first driving block 7 through a pin shaft, the upper end of the fixed handle 1D is rotatably connected with a second driving block 5 through a pin shaft, the second driving block 5 is provided with a through hole, the first driving block 7 is provided with a wedge-shaped hole, the push rod 4 is simultaneously abutted against the through hole and the wedge-shaped hole, the push rod 4 sequentially penetrates through the second driving block 5, the fixed handle 1D, the first driving block 7 and the fixing plate 1E from left to right, the push rod, the first reset spring 8 is arranged between the first driving block 7 and the fixed plate 1E, the second reset spring 6 is arranged between the second driving block 5 and the fixed handle 1D, the fixed handle 1D is also integrally formed with a limiting boss for balancing the elasticity of the first reset spring 8 to the movable handle 3, the support plate 2 is fixedly welded on the upper side of the right end of the first connecting plate 1A, the lower side of the support plate 2 is fixedly bonded with a sucker 14, the pressing part 9 comprises two first clamping plates 19 and a first sliding block 18, the two first clamping plates 19 are fixedly connected with the first sliding block 18 through bolts and nuts, the pressing part 9 is fixedly connected with the right end of the push rod 4 through screws, the lower side of the first sliding block 18 is integrally formed with a first guide block 18A, the first connecting plate 1A is provided with a first sliding groove, the first guide block 18A is slidably connected with the first sliding groove, the plugging part 10 comprises two second clamping plates 16 and a second sliding block 15, two second clamping plates 16 are fixedly connected with a second sliding block 15 through bolts and nuts, a second guide block 15A is integrally formed on the lower side of the second sliding block 15, a second sliding groove is formed in a second connecting plate 1B, the second guide block 15A is in sliding connection with the second sliding groove, a third connecting plate 1C is fixedly welded on the lower side of the right end of the first connecting plate 1A, the third connecting plate 1C is rotatably connected with a rotating wheel 11 through a pin shaft, the rotating wheel 11 is provided with a plurality of connecting pin shafts, the rotating wheel 11 is rotatably connected with a first crank 12 and a second crank 13 through pin shafts, the upper end of the first crank 12 is rotatably connected with a pressing part 9, the second crank 13 comprises a first connecting rod 13A, a second connecting rod 13B and a spherical hinge 13C, the lower end of the first connecting rod 13A is rotatably connected with the rotating wheel 11 through a pin shaft, the upper end of the first connecting rod 13A is in threaded connection with the lower end of the second connecting rod 13B, and the upper end of the second connecting rod 13, the ball-and-socket joint 13C is rotatably connected to the inserting and extracting portion 10, the rotating wheel 11, the first crank 12, the pressing portion 9 and the first connecting plate 1A constitute a crank-and-slider mechanism, and the rotating wheel 11, the second crank 13, the inserting and extracting portion 10 and the second connecting plate 1B also constitute a crank-and-slider mechanism.

The specific implementation process is as follows:

this embodiment is the quick-operation joint between medical instrument and the negative pressure device in the plug ICU ward: before the device is used, the sizes of the openings of the two first clamping plates 19 and the two second clamping plates 16 are adjusted according to the pipe diameter of the quick connector and the distance between the instrument equipment and the surface of the negative pressure cabinet, so that the two second clamping plates 16 are just in good contact with the pipe wall of the male connector of the quick connector, the anti-skid rubber 17 is beneficial to increasing the friction force between the second clamping plates 16 and the pipe wall, the two first clamping plates 19 are in good contact with the female connector, then the suction cup 14 and the surface of the negative pressure cabinet are stably adsorbed under the condition that the supporting plate 2 is ensured to be in good contact with the surface of the negative pressure cabinet, and the device is prevented from sliding and shifting in the process of plugging and unplugging; in the process of inserting and pulling the quick connector, one hand of a nurse stabilizes instrument equipment, the other hand holds the auxiliary device, a finger pinches the movable handle 3 to rotate, the first driving block 7 is rotationally connected with the movable handle 3, the first driving block 7 rotates along with the movable handle 3, the rotating first driving block 7 pushes the push rod 4 to move towards the right side, the push rod 4 drives the second driving block 5 to rotate towards the right side, after the movable handle 3 rotates to a polar position, the first driving block 7 resets under the action of the first reset spring 8, the second driving block 5 resets under the action of the second reset spring 6, the wedge-shaped hole enables the movable handle 3 to be pinched more labor-saving, and the limiting boss balances the elasticity of the movable handle 3 due to the first reset spring 8; the movable handle 3 is repeatedly pinched to periodically rotate, so that the push rod 4 is continuously moved towards the right side, and the push rod 4 pushes the pressing part 9 to continuously move towards the right side in the continuous rightward movement process, so that the female joint is pressed; the rotating wheel 11, the first crank 12, the pressing part 9 and the first connecting plate 1A form a crank-slider structure, the rotating wheel 11, the second crank 13, the plugging part 10 and the second connecting plate 1B also form a crank-slider mechanism, the pressing part 9 moving towards the right side pushes the rotating wheel 11 to rotate, and the rotating wheel 11 pushes the plugging part 10 to slide on the second connecting plate 1B under the action of the second crank 13; if need connect quick-operation joint: the second connecting rod 13B is rotated to adjust the connection length and the connection position with the first connecting rod 13A, so that the plugging part 10 also moves towards the right side, namely when the pressing part 9 presses the female connector down, the plugging part 10 applies a force towards the right side to the male connector to enable the male connector to be connected with the female connector, and the plugging of the quick connector is realized; if need extract quick-operation joint, rotate second connecting rod 13B according to instrument and equipment's needs and adjust length of connection and hookup location with first connecting rod 13A, make plug portion 10 move to the left side, press splenium 9 promptly when pressing down female joint, plug portion 10 is applyed to the male joint and is made it separately with female joint to left power, realize quick-operation joint's extraction, at plug quick-operation joint's in-process, the guide block slides in the spout, can effectually guarantee that the slider is linear motion along the connecting plate, plug quick-operation joint is quick-operation reliable.

The above description is only an example of the present invention, and the common general knowledge of the technical solutions or characteristics known in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides an auxiliary device for quick-operation joint plug which characterized in that: comprises a base frame (1), a support plate (2), a push rod (4), a pressing part (9) and a plugging part (10), wherein the base frame (1) comprises a first connecting plate (1A), a second connecting plate (1B), a third connecting plate (1C), a fixed handle (1D) and a fixed plate (1E), the fixed handle (1D) is rotatably connected with a movable handle (3), the upper end of the movable handle (3) is rotatably connected with a first driving block (7), the upper end of the fixed handle (1D) is rotatably connected with a second driving block (5), the second driving block (5) is provided with a through hole, the first driving block (7) is provided with a wedge-shaped hole, the push rod (4) is abutted against the through hole and the wedge-shaped hole, and the push rod (4) sequentially penetrates through the second driving block (5), the fixed handle (1D), the first driving block (7) and the fixed plate (1E), the push rod (4) is further provided with a first reset spring (8) and a second reset spring (6) in a penetrating manner, the first reset spring (8) is arranged between the first driving block (7) and the fixed plate (1E), the second reset spring (6) is arranged between the second driving block (5) and the fixed handle (1D), the fixed handle (1D) is further provided with a limiting boss used for balancing the elastic force of the first reset spring (8) on the movable handle (3), the support plate (2) is fixedly connected at the right end of the first connecting plate (1A), the pressing part (9) is connected with the right end of the push rod (4), the pressing part (9) is further connected with the first connecting plate (1A) in a sliding manner, and the plugging part (10) is connected with the second connecting plate (1B) in a sliding manner, third connecting plate (1C) is connected the downside of first connecting plate (1A), third connecting plate (1C) rotates and is connected with and rotates wheel (11), it rotates and is connected with first crank (12) and second crank (13) to rotate wheel (11), the free end of first crank (12) with press splenium (9) to rotate and connect, the free end of second crank (13) with plug portion (10) rotates and connects, rotate wheel (11) first crank (12) press splenium (9) with first connecting plate (1A) constitutes the slider-crank structure, rotate wheel (11) second crank (13) plug portion (10) with second connecting plate (1B) also constitutes slider-crank mechanism, second crank (13) is the telescopic link.

2. The auxiliary device for quick connector plugging and unplugging of claim 1, wherein: the pressing portion (9) comprises a first clamping plate (19) and a first sliding block (18), and the first clamping plate (19) is fixedly connected with the first sliding block (18).

3. The auxiliary device for inserting and pulling the quick connector as claimed in claim 2, wherein: first spout has been seted up to first connecting plate (1A), first slider (18) are equipped with first guide block (18A), first guide block (18A) with first spout sliding connection.

4. An auxiliary device for quick connector plug according to claim 3, wherein: the plugging portion (10) comprises a second clamping plate (16) and a second sliding block (15), and the second clamping plate (16) is fixedly connected with the second sliding block (15).

5. An auxiliary device for quick connector plug according to claim 4, wherein: the second connecting plate (1B) is provided with a second sliding groove, the second sliding block (15) is provided with a second guide block (15A), and the second guide block (15A) is in sliding connection with the second sliding groove.

6. An auxiliary device for quick connector plug according to claim 5, wherein: the inner side of the second clamping plate (16) is connected with an antiskid rubber (17).

7. The auxiliary device for inserting and pulling the quick connector as claimed in claim 6, wherein: the number of the first clamping plates (18) is two, the number of the second clamping plates (16) is two, and the first clamping plates (18) are connected with the second clamping plates (16) through bolts and nuts.

8. An auxiliary device for quick connector plug according to claim 7, wherein: second crank (13) include first connecting rod (13A), second connecting rod (13B) and ball pivot head (13C), the one end of first connecting rod (13A) with it rotates to rotate wheel (11) and connects, the other end of first connecting rod (13A) with threaded connection is passed through to the one end of second connecting rod (13B), the other end of second connecting rod (13B) with ball pivot head (13C) are articulated, ball pivot head (13C) with plug portion (10) rotate and connect.

9. An auxiliary device for quick connector plug according to claim 8, wherein: the lower side of the supporting plate (2) is connected with a sucker (14).