CN219847665U - Auxiliary push-pull tool for injector - Google Patents
Auxiliary push-pull tool for injector Download PDFInfo
- Publication number
- CN219847665U CN219847665U CN202320874596.2U CN202320874596U CN219847665U CN 219847665 U CN219847665 U CN 219847665U CN 202320874596 U CN202320874596 U CN 202320874596U CN 219847665 U CN219847665 U CN 219847665U
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- gear
- piston rod
- injector
- mounting block
- rod
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- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 17
- 210000003811 finger Anatomy 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an auxiliary push-pull tool of syringe, including the installation piece, the connecting rod, carriage release lever and joint spare, the outside of cylinder is located to the installation piece cover, go up cavity and lower cavity have been seted up along circumference to the inside of installation piece, go up cavity and lower cavity's one end sliding connection respectively have last piston rod and lower piston rod, go up the piston rod, the one end of lower piston rod is located the outside of installation piece after passing the installation piece respectively, the both ends sliding connection of connecting rod is in the other end of last cavity and lower cavity, the mounting groove has been seted up along the axial to the inside of installation piece, be provided with gear drive subassembly in the mounting groove, the connecting rod is connected in gear drive subassembly's head end through first rack meshing, the one end of carriage release lever is located the mounting groove, be connected with the joint spare after the other end of carriage release lever through the second rack meshing connection in gear drive subassembly's tail end, joint spare joint in the end of the piston rod of syringe. The design is convenient to operate and is not easy to slip.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an auxiliary push-pull tool of an injector.
Background
A syringe is a common medical device, and its common structure generally consists of a piston, a syringe and a needle.
For example, the current chinese patent (application number CN201922233242.6, application day 2019, 12/13) discloses a medicine-saving injector assembly, which comprises a syringe, a push rod, a rubber stopper of an air bag and a needle (as shown in fig. 6), wherein a pressing plate is arranged at one end of the push rod far away from the rubber stopper, and the functions of extraction and injection are realized by pulling or pressing the pressing plate. Therefore, the existing syringe has the problems of inconvenient operation and easy slipping when in use.
The disclosure of this background section is only intended to increase the understanding of the general background of the utility model and should not be taken as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to overcome the defects and problems of inconvenient operation and easy slipping in the prior art and provides an auxiliary push-pull tool of an injector, which is convenient to operate and is not easy to slip.
In order to achieve the above object, the technical solution of the present utility model is:
the utility model provides an auxiliary push-pull tool of syringe, includes installation piece, connecting rod, carriage release lever and joint spare, the outside of the cylinder of syringe is located to the installation piece cover, cavity and lower cavity have been seted up along circumference to the inside of installation piece, the one end sliding connection of cavity has last piston rod, go up the one end of piston rod pass the outside that is located the installation piece behind the installation piece, the one end sliding connection of cavity has lower piston rod down, the one end of piston rod passes the outside that is located the installation piece behind the installation piece, one end sliding connection of connecting rod in the other end of cavity, the other end sliding connection of connecting rod in the other end of cavity down, the mounting groove has been seted up along the axial to the inside of installation piece, be provided with gear drive subassembly in the mounting groove, the connecting rod for one side of gear drive subassembly is provided with first rack, first rack meshing connect in gear drive subassembly's head end, the one end of carriage release lever is located the mounting groove, the one end sliding connection has down piston rod after the other end of carriage release lever passes the installation piece, the one end sliding connection in the joint spare, the other end of carriage release lever passes the other end in the second rack meshing piece.
The clamping piece comprises a supporting rod and two clamping plates, the clamping plates are U-shaped, the two clamping plates are connected with each other through the supporting rod, one side of each clamping plate is connected with the other end of the movable rod, the other side of each clamping plate is abutted with one side of the end head of the piston rod, and the other side of each clamping plate is abutted with the other side of the end head of the piston rod.
The gear transmission assembly comprises a first connecting shaft, a second connecting shaft, a first gear and a second gear, wherein the first connecting shaft and the second connecting shaft are sequentially installed on the inner wall of the installation groove, the first connecting shaft is sleeved with the first gear, the second connecting shaft is sleeved with the second gear, the first gear is meshed with the first rack, the second gear is meshed with the first gear, and the second rack is meshed with the second gear.
A third gear is coaxially arranged on one side of the second gear, the third gear is sleeved on the second connecting shaft, and the second rack is meshed and connected with the third gear.
The diameter of the second gear is smaller than the diameter of the first gear.
The diameter of the third gear is larger than the diameter of the second gear.
The one end that goes up the piston rod and keep away from the installation piece is provided with the connecting block, the one end that the lower piston rod kept away from the installation piece is provided with the connecting block, two the outside of connecting block is convex.
The outside of connecting block has seted up the recess, the appearance phase-match of recess and finger.
The mounting block is semi-cylindrical, and the outer diameter of the mounting block is larger than the outer diameter of a clamping block of the injector.
An elastic pad is arranged between the mounting block and the syringe.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the auxiliary push-pull tool for the injector, the upper piston rod and the lower piston rod are arranged, the upper piston rod can slide in the upper cavity, the lower piston rod can slide in the lower cavity, and the connecting rod is arranged between the upper cavity and the lower cavity, so that when the upper piston rod is pressed, air in the upper cavity can drive the connecting rod to move, meanwhile, air in the lower cavity is extruded, the lower piston rod moves outwards, meanwhile, the connecting rod is meshed and connected with the gear transmission assembly through the first rack, the moving rod is meshed and connected with the gear transmission assembly through the second rack, when the connecting rod moves, the first rack is driven to move synchronously, force is transmitted to the moving rod through the gear transmission assembly, the moving rod moves, the moving rod drives the end of the piston rod to move through the clamping piece, and the connecting rod can move up and down through pressing the upper piston rod and the lower piston rod. Therefore, the utility model has convenient operation and is not easy to slip.
2. In the auxiliary push-pull tool of the injector, the clamping plate is arranged into the U shape, so that the clamping plate can conveniently penetrate through the piston rod of the injector; the gear transmission assembly adopts a mode of meshing a first gear with a second gear, and the transmission process is stable; through setting up the third gear, make the movable rod not contact first gear and second gear in the removal in-process, the scope of movable rod removal is bigger like this, is favorable to the syringe to carry out injection and extraction of large capacity. Therefore, the utility model has the advantages of convenient use, stable structure and wide application range.
3. In the auxiliary push-pull tool for the injector, the diameter of the second gear is smaller than that of the first gear, and when the first gear rotates for one circle during gear transmission, the second gear rotates for a plurality of circles, so that the connecting rod only needs to move for a small distance, and the moving rod moves for a large distance; the diameter of the third gear is larger than that of the second gear, and as the third gear and the second gear are coaxially arranged, after one circle of rotation, the circumference of the rotation of the third gear is larger than that of the rotation of the second gear, so that the moving distance of the moving rod is relatively increased. Therefore, the utility model has small structure and convenient use.
4. In the auxiliary push-pull tool for the injector, the hand is held on the mounting block during injection, and the arc-shaped connecting block is arranged, so that the contact area between the connecting block and the finger is enlarged, the force is more convenient to bear when the upper piston rod or the lower piston rod is pressed, meanwhile, the connecting block is provided with the groove, the finger can be placed in the groove, and the finger can be prevented from sliding during pressing. Therefore, the utility model has high reliability and convenient use.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic front view of the present utility model.
Fig. 3 is a schematic cross-sectional view in elevation of the present utility model.
Fig. 4 is a schematic cross-sectional view in a side view of the present utility model.
Fig. 5 is a schematic structural view of the clamping member in the present utility model.
Fig. 6 is a schematic view of a prior art drug-saving syringe assembly.
In the figure: injector 1, cylinder 11, piston rod 12, head 13, fixture block 14, mounting block 2, upper cavity 21, lower cavity 22, mounting groove 23, connecting rod 24, upper piston rod 25, lower piston rod 26, gear drive assembly 3, first connecting shaft 31, second connecting shaft 32, first gear 33, second gear 34, third gear 35, elastic pad 4, moving rod 5, joint 6, joint plate 61, supporting rod 62, first rack 7, second rack 8, connecting block 9, groove 10.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 5, an auxiliary push-pull tool for an injector comprises a mounting block 2, a connecting rod 24, a moving rod 5 and a clamping piece 6, wherein the mounting block 2 is sleeved on the outer side of a needle cylinder 11 of the injector 1, an upper cavity 21 and a lower cavity 22 are formed in the mounting block 2 along the circumferential direction, one end of the upper cavity 21 is slidably connected with an upper piston rod 25, one end of the upper piston rod 25 penetrates through the mounting block 2 and then is positioned on the outer side of the mounting block 2, one end of the lower cavity 22 is slidably connected with a lower piston rod 26, one end of the lower piston rod 26 penetrates through the mounting block 2 and then is positioned on the outer side of the mounting block 2, one end of the connecting rod 24 is slidably connected with the other end of the upper cavity 21, the other end of the connecting rod 24 is slidably connected with the other end of the lower cavity 22, a mounting groove 23 is formed in the inner side of the mounting block 2 along the axial direction, a gear transmission assembly 3 is arranged in the mounting groove 23, one side of the connecting rod 24 opposite to the gear transmission assembly 3 is provided with a first rack 7, one end 7 is meshed with the first rack transmission assembly 3 and then is meshed with the end of the first rack transmission assembly 3 and then is positioned on the clamping piece 5 and then is meshed with the end of the moving rod 5, and is meshed with the end of the injector 1 through the clamping piece 6, and is meshed with the end of the clamping piece 6.
The clamping piece 6 comprises a supporting rod 62 and two clamping plates 61, the clamping plates 61 are in a U shape, the two clamping plates 61 are connected with each other through the supporting rod 62, one side of each clamping plate 61 is connected with the other end of the corresponding movable rod 5, the other side of each clamping plate 61 is abutted with one side of the corresponding end 13 of the corresponding piston rod 12, and the other side of each clamping plate 61 is abutted with the other side of the corresponding end 13 of the corresponding piston rod 12.
The gear assembly 3 comprises a first connecting shaft 31, a second connecting shaft 32, a first gear 33 and a second gear 34, the first connecting shaft 31 and the second connecting shaft 32 are sequentially installed on the inner wall of the installation groove 23, the first gear 33 is sleeved on the first connecting shaft 31, the second gear 34 is sleeved on the second connecting shaft 32, the first gear 33 is in meshed connection with the first rack 7, the second gear 34 is in meshed connection with the first gear 33, and the second rack 8 is in meshed connection with the second gear 34.
A third gear 35 is coaxially arranged on one side of the second gear 34, the third gear 35 is sleeved on the second connecting shaft 32, and the second rack 8 is in meshed connection with the third gear 35.
The diameter of the second gear 34 is smaller than the diameter of the first gear 33.
The diameter of the third gear 35 is larger than the diameter of the second gear 34.
The one end that goes up piston rod 25 and leaves mounting block 2 is provided with connecting block 9, the one end that goes down piston rod 26 and leaves mounting block 2 is provided with connecting block 9, two the outside of connecting block 9 is convex.
The outside of connecting block 9 has seted up recess 10, recess 10 matches with the appearance of finger.
The mounting block 2 is semi-cylindrical, and the outer diameter of the mounting block 2 is larger than the outer diameter of the clamping block 14 of the injector 1.
An elastic cushion 4 is arranged between the mounting block 2 and the cylinder 11 of the injector 1.
The principle of the utility model is explained as follows:
before use, the mounting block 2 is firstly mounted on the needle cylinder 11 of the injector 1, the position of the moving rod 5 is adjusted, the two clamping plates 61 are clamped with the end 13 of the piston rod 12, then the mounting block 2 is rotated, the scales of the injector 1 are exposed outside, after the mounting is completed, the mounting block 2 is held by hands, and simultaneously, the index finger and the thumb are placed in the grooves 10 of the two connecting blocks 9, and the scales on the needle cylinder 11 of the injector 1 can be observed by naked eyes. When the syringe 1 is used, the upper piston rod 2512 is pressed to enable the connecting rod 24 to move downwards, the first gear 33 is driven to rotate clockwise, the second gear 34 and the third gear 35 rotate anticlockwise, the moving rod 5 is enabled to move inwards, and the syringe 1 is used for injection; by pressing the lower piston rod 2612, the connecting rod 24 moves upward, driving the first gear 33 to rotate counterclockwise, the second gear 34 and the third gear 35 to rotate clockwise, and the moving rod 5 moves outward, so that the syringe 1 performs the operation of extracting the accumulated liquid or the injection.
Example 1
Referring to fig. 1 to 5, an auxiliary push-pull tool for an injector comprises a mounting block 2, a connecting rod 24, a moving rod 5 and a clamping piece 6, wherein the mounting block 2 is sleeved on the outer side of a needle cylinder 11 of the injector 1, an upper cavity 21 and a lower cavity 22 are formed in the mounting block 2 along the circumferential direction, one end of the upper cavity 21 is slidably connected with an upper piston rod 25, one end of the upper piston rod 25 penetrates through the mounting block 2 and then is positioned on the outer side of the mounting block 2, one end of the lower cavity 22 is slidably connected with a lower piston rod 26, one end of the lower piston rod 26 penetrates through the mounting block 2 and then is positioned on the outer side of the mounting block 2, one end of the connecting rod 24 is slidably connected with the other end of the upper cavity 21, the other end of the connecting rod 24 is slidably connected with the other end of the lower cavity 22, a mounting groove 23 is formed in the inner side of the mounting block 2 along the axial direction, a gear transmission assembly 3 is arranged in the mounting groove 23, one side of the connecting rod 24 opposite to the gear transmission assembly 3 is provided with a first rack 7, one end 7 is meshed with the first rack transmission assembly 3 and then is meshed with the end of the first rack transmission assembly 3 and then is positioned on the clamping piece 5 and then is meshed with the end of the moving rod 5, and is meshed with the end of the injector 1 through the clamping piece 6, and is meshed with the end of the clamping piece 6.
The clamping piece 6 comprises a supporting rod 62 and two clamping plates 61, the clamping plates 61 are in a U shape, the two clamping plates 61 are connected with each other through the supporting rod 62, one side of each clamping plate 61 is connected with the other end of the corresponding movable rod 5, the other side of each clamping plate 61 is abutted with one side of the corresponding end 13 of the corresponding piston rod 12, and the other side of each clamping plate 61 is abutted with the other side of the corresponding end 13 of the corresponding piston rod 12.
The gear assembly 3 comprises a first connecting shaft 31, a second connecting shaft 32, a first gear 33 and a second gear 34, the first connecting shaft 31 and the second connecting shaft 32 are sequentially installed on the inner wall of the installation groove 23, the first gear 33 is sleeved on the first connecting shaft 31, the second gear 34 is sleeved on the second connecting shaft 32, the first gear 33 is in meshed connection with the first rack 7, the second gear 34 is in meshed connection with the first gear 33, and the second rack 8 is in meshed connection with the second gear 34.
Example 2
The basic content is the same as in example 1, except that:
referring to fig. 4, a third gear 35 is coaxially disposed on one side of the second gear 34, the third gear 35 is sleeved on the second connecting shaft 32, and the second rack 8 is engaged with and connected to the third gear 35. The diameter of the second gear 34 is smaller than the diameter of the first gear 33. The diameter of the third gear 35 is larger than the diameter of the second gear 34.
Example 3
The basic content is the same as in example 1, except that:
referring to fig. 1 to 3, a connecting block 9 is disposed at an end of the upper piston rod 25 away from the mounting block 2, a connecting block 9 is disposed at an end of the lower piston rod 26 away from the mounting block 2, and outer sides of the two connecting blocks 9 are arc-shaped. The outside of connecting block 9 has seted up recess 10, recess 10 matches with the appearance of finger.
Example 4
The basic content is the same as in example 1, except that:
referring to fig. 2 to 3, the mounting block 2 has a semi-cylindrical shape, and the outer diameter of the mounting block 2 is larger than the outer diameter of the clamping block 14 of the syringe 1. An elastic cushion 4 is arranged between the mounting block 2 and the cylinder 11 of the injector 1.
The above description is merely of preferred embodiments of the present utility model, and the scope of the present utility model is not limited to the above embodiments, but all equivalent modifications or variations according to the present disclosure will be within the scope of the claims.
Claims (10)
1. An auxiliary push-pull tool of an injector is characterized in that: the device comprises a mounting block (2), a connecting rod (24), a moving rod (5) and a clamping piece (6), wherein the mounting block (2) is sleeved on the outer side of a needle cylinder (11) of an injector (1), an upper cavity (21) and a lower cavity (22) are formed in the mounting block (2) along the circumferential direction, an upper piston rod (25) is slidably connected to one end of the upper cavity (21), one end of the upper piston rod (25) penetrates through the mounting block (2) and then is positioned on the outer side of the mounting block (2), a lower piston rod (26) is slidably connected to one end of the lower cavity (22), one end of the lower piston rod (26) penetrates through the mounting block (2) and then is positioned on the outer side of the mounting block (2), one end of the connecting rod (24) is slidably connected to the other end of the upper cavity (21), a mounting groove (23) is formed in the mounting block (2) along the axial direction, a gear assembly (3) is arranged in the mounting groove (23), one end of the lower piston rod (24) penetrates through the mounting block (2) and is meshed with one first gear assembly (7) relative to one side of the gear assembly (7), one end of the moving rod (5) is located in the mounting groove (23), the other end of the moving rod (5) penetrates through the mounting block (2) and then is connected with the clamping piece (6), the moving rod (5) is connected to the tail end of the gear transmission assembly (3) in a meshed mode through the second rack (8), and the clamping piece (6) is clamped to the end (13) of the piston rod (12) of the injector (1).
2. The injector assisted push-pull tool of claim 1 wherein: the clamping piece (6) comprises a supporting rod (62) and two clamping plates (61), the clamping plates (61) are U-shaped, the two clamping plates (61) are connected with each other through the supporting rod (62), one side of each clamping plate (61) is connected with the other end of the corresponding movable rod (5), the other side of each clamping plate (61) is abutted with one side of the end (13) of the corresponding piston rod (12), and the other side of each clamping plate (61) is abutted with the other side of the end (13) of the corresponding piston rod (12).
3. The injector assisted push-pull tool of claim 1 wherein: the gear transmission assembly (3) comprises a first connecting shaft (31), a second connecting shaft (32), a first gear (33) and a second gear (34), wherein the first connecting shaft (31) and the second connecting shaft (32) are sequentially installed on the inner wall of the installation groove (23), the first connecting shaft (31) is sleeved with the first gear (33), the second connecting shaft (32) is sleeved with the second gear (34), the first gear (33) is connected with the first rack (7) in a meshing manner, the second gear (34) is connected with the first gear (33) in a meshing manner, and the second rack (8) is connected with the second gear (34) in a meshing manner.
4. A syringe accessory push-pull tool as claimed in claim 3, wherein: a third gear (35) is coaxially arranged on one side of the second gear (34), the third gear (35) is sleeved on the second connecting shaft (32), and the second rack (8) is connected with the third gear (35) in a meshing mode.
5. The syringe accessory push-pull tool of claim 4 wherein: the diameter of the second gear (34) is smaller than the diameter of the first gear (33).
6. The syringe accessory push-pull tool of claim 4 wherein: the diameter of the third gear (35) is larger than the diameter of the second gear (34).
7. The injector assisted push-pull tool of claim 1 wherein: the one end that goes up piston rod (25) and keep away from installation piece (2) is provided with connecting block (9), the one end that lower piston rod (26) kept away from installation piece (2) is provided with connecting block (9), two the outside of connecting block (9) is convex.
8. The injector assist push-pull tool of claim 7 wherein: the outer side of the connecting block (9) is provided with a groove (10), and the groove (10) is matched with the shape of a finger.
9. The injector assisted push-pull tool of claim 1 wherein: the mounting block (2) is semi-cylindrical, and the outer diameter of the mounting block (2) is larger than the outer diameter of a clamping block (14) of the injector (1).
10. The injector assisted push-pull tool of claim 9 wherein: an elastic pad (4) is arranged between the mounting block (2) and the needle cylinder (11) of the injector (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320874596.2U CN219847665U (en) | 2023-04-17 | 2023-04-17 | Auxiliary push-pull tool for injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320874596.2U CN219847665U (en) | 2023-04-17 | 2023-04-17 | Auxiliary push-pull tool for injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219847665U true CN219847665U (en) | 2023-10-20 |
Family
ID=88318329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320874596.2U Active CN219847665U (en) | 2023-04-17 | 2023-04-17 | Auxiliary push-pull tool for injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219847665U (en) |
-
2023
- 2023-04-17 CN CN202320874596.2U patent/CN219847665U/en active Active
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