Medicine injection device based on suppository lever principle
By using a suppository lever principle injection device, combined with clamping, filling, and driving devices, the performance deficiencies of existing suppository filling equipment have been solved, achieving high-precision injection, good sealing, and long-life injection effects.
Patent Information
- Application Number
- CN202421546675.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing suppository infusion equipment has poor performance, inaccurate injection, troublesome drug metering adjustment, poor sealing performance, and is prone to wall adhesion and leakage. It also requires frequent replacement of vulnerable parts.
The injection device, which adopts the suppository lever principle, includes a clamping device, an injection device, a first drive device, a second drive device, and a third drive device. It achieves material suction and injection through automated movement. A sealing ring is set on the injection rod, and the pump body is designed with a material storage ring groove to reduce leakage. The clamping device has a simple structure and stable clamping.
It achieves convenient drug metering adjustment, high injection accuracy, good sealing, high working efficiency, long service life, reduces wall adhesion and leakage, and reduces the replacement frequency of vulnerable parts.
Smart Images
Figure CN223615140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of infusion equipment technology, specifically to an injection device based on the lever principle of suppositories. Background Technology
[0002] Currently, existing suppository infusion equipment has poor performance, inaccurate injection, troublesome drug metering adjustment, unstable filling volume, wall adhesion and leakage, poor sealing performance, and high frequency of replacement of vulnerable parts. Utility Model Content
[0003] The purpose of this invention is to provide a suppository lever principle injection device with a simple structure, convenient drug metering adjustment, high injection accuracy, good sealing, high working efficiency, and long service life.
[0004] This utility model provides a suppository lever principle injection device, which has the following features: a frame;
[0005] The clamping device includes two guide columns fixed on the frame, a front template, a rear template, and a pouring material rack disposed between the front template and the rear template;
[0006] The filling device, mounted on the frame and located above the clamping device, includes a pump body, a suction piston assembly, and an injection assembly.
[0007] The pump body has an inlet and several injection channels. Each injection channel includes a suction chamber and an injection chamber. The suction chamber is connected to the inlet through the injection chamber.
[0008] The suction piston assembly includes several injection piston rods movably disposed in corresponding suction chambers, and the injection piston rods are driven by the first driving device described below.
[0009] The injection assembly includes several injection rods that are movably disposed in corresponding injection chambers. The outer wall of the injection rod is provided with a feed groove. The injection rod is driven by the second driving device described below.
[0010] The first driving device includes a first driving member mounted on a frame and a first driving assembly connected to the output end of the first driving member. The first driving member drives the injection piston rod to move up and down through the first driving assembly.
[0011] The second driving device includes a second driving member mounted on a frame and a second driving assembly connected to the output end of the second driving member. The second driving member drives the injection rod to move up and down through the second driving assembly.
[0012] During material suction, the suction chamber is connected to the feed inlet through the feed groove, and the injection rod has an injection channel inside; during material injection, the suction chamber is connected to the injection head through the injection channel.
[0013] The suppository lever principle injection device provided by this utility model also has the following features: both ends of the injection rod are provided with a first sealing ring, and a second sealing ring is provided between the feed groove and the liquid inlet end of the injection channel.
[0014] The suppository lever principle injection device provided by this utility model also has the following features: a main overflow channel is provided at the bottom of the pump body, a storage ring groove is provided at the bottom of the injection rod, the storage ring groove is connected to the main overflow channel through an overflow hole, and a third sealing ring is provided between the storage ring groove and the feed groove.
[0015] The suppository lever principle injection device provided by this utility model also has the following features: the first driving component includes a driving piston component mounted on the frame and a connecting plate connected to the injection piston rod. The driving piston component is connected to the output end of the first driving component, and the connecting plate is sleeved on the driving piston component, so that the driving piston component drives the injection piston rod to move up and down through the connecting plate under the drive of the first driving component.
[0016] The suppository lever principle injection device provided by this utility model also has the following features: the second driving component includes two levers, a driving rod, a connecting rod, and four support rods. The two levers are rotatably mounted on the frame. Two fulcrum slots are provided on the lower wall of each of the two levers. The driving rod is located on the output end of the second driving component. The two ends of the driving rod are respectively connected to one end of the two levers. The connecting rod is connected to the injection rod. The two ends of the connecting rod are respectively connected to the other end of the two levers. The four support rods are all mounted on the frame and are divided into two groups located below the corresponding levers.
[0017] When the second driving component drives the two levers to rotate via the driving rod, the two fulcrum slots on the levers alternately engage with the corresponding two support rods.
[0018] The suppository lever principle injection device provided by this utility model also includes: a third driving device for controlling the front template and the rear template to slide on the two guide posts, thereby clamping or releasing the suppository shell. The third driving device includes a front guide rod fixed on the front template, a rear connecting rod hinged to the back of the rear template, and a rotating sleeve rotatably mounted on the frame. The rotating sleeve is driven by the third driving component. A spring is sleeved on the outside of the front guide rod and movably mounted on the frame. The outer end of the front guide rod is hinged to a front connecting rod. The front connecting rod and the rear connecting rod are respectively hinged to the rotating sleeve. The rotation of the rotating sleeve enables the front template and the rear template to move in the same direction or in opposite directions.
[0019] The outstanding and beneficial technical effects of this utility model compared to the prior art are:
[0020] 1. The suction piston assembly of this utility model realizes suction and injection by moving, and the injection assembly realizes the switching between suction channel and injection channel by moving. All the above movements are automated by the control system.
[0021] 2. The sealing ring on the injection rod of this utility model can effectively increase the sealing performance of the equipment, and the design of the material storage ring groove can reduce the phenomenon of wall adhesion and leakage.
[0022] 3. The clamping device of this utility model has a simple structure, stable clamping, and is easy to use. Attached Figure Description
[0023] Figure 1 This is a front view structural schematic diagram of this utility model;
[0024] Figure 2 This is a rear view structural diagram of the present invention;
[0025] Figure 3 This is a schematic diagram of the pump body during material suction of this utility model;
[0026] Figure 4 This is a schematic diagram of the pump body during injection of this utility model;
[0027] Figure 5 This is a schematic diagram of the pump body of this utility model;
[0028] Figure 6 This is a schematic diagram of the filling channel in the pump body of this utility model;
[0029] Figure 7 This is a schematic diagram of the material clamping device of this utility model.
[0030] Explanation of reference numerals in the attached figures:
[0031] 10. Rack;
[0032] 20. Clamping device; 21. Guide column; 22. Front template; 23. Rear template; 24. Injection rack;
[0033] 30. Filling device; 31. Pump body; 311. Feed inlet; 312. Filling channel; 3121. Suction chamber; 3122. Injection chamber; 3123. Connecting hole; 313. Main overflow channel; 3131. Storage ring groove; 3132. Third sealing ring; 32. Suction piston assembly; 321. Filling piston rod; 33. Injection assembly; 331. Injection rod; 332. Feed groove; 333. First sealing ring; 334. Second sealing ring; 335. Injection channel;
[0034] 40. First drive device; 41. First drive component; 42. First drive assembly; 421. Drive piston component; 422. Connecting plate; 50. Second drive device; 51. Second drive component; 52. Second drive assembly; 521. Lever plate; 5211. Pivot slot; 522. Drive rod; 523. Connecting rod; 524. Support rod;
[0035] 60. Third drive unit; 61. Front guide rod; 62. Rear connecting rod; 63. Rotating sleeve; 64. Spring; 65. Front connecting rod; 66. Third drive component. Detailed Implementation
[0036] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.
[0037] Example
[0038] Figure 1 This is a front view structural diagram of this utility model. Figure 2 This is a rear view structural diagram of the present invention. Figure 3 This is a schematic diagram of the pump body during material suction of this utility model. Figure 4 This is a schematic diagram of the pump body during injection of this utility model. Figure 5 This is a schematic diagram of the pump body of this utility model. Figure 6 This is a schematic diagram of the filling channel in the pump body of this utility model. Figure 7 This is a schematic diagram of the material clamping device of this utility model.
[0039] like Figure 1 and Figure 2 As shown, this embodiment provides a suppository lever principle injection device, including: frame 10, clamping device 20, filling device 30, first driving device 40, second driving device 50 and third driving device 60.
[0040] like Figure 7 As shown, the clamping device 20 includes two guide columns 21 fixed on the frame 10, a front template 22, a rear template 23, and a pouring material rack 24 disposed between the front template 22 and the rear template 23.
[0041] like Figures 3 to 6 As shown, the injection device 30 is mounted on the frame 10 and located above the clamping device 20. The injection device 30 includes a pump body 31, a suction piston assembly 32, and an injection assembly 33.
[0042] The pump body 31 has an inlet 311 and several injection channels 312. Each injection channel 312 includes a suction chamber 3121 and an injection chamber 3122. The suction chamber 3121 is connected to the inlet 311 through the injection chamber 3122. The suction chamber 3121 is connected to the injection chamber 3122 through a connecting hole 3123.
[0043] The suction piston assembly 32 includes several filling piston rods 321 movably disposed in the corresponding suction chambers 3121. The number of filling piston rods 321 is the same as the number of suction chambers 3121. Both ends of the filling piston rods 321 are provided with sealing rings. The filling piston rods 321 are raised and lowered by the first drive device 40.
[0044] The injection assembly 33 includes several injection rods 331 movably disposed in corresponding injection chambers 3122, the number of injection rods 331 being the same as the number of injection chambers 3122. A feed groove 332 is formed on the outer wall of each injection rod 331. During material suction, the suction chamber 3121 is connected to the feed inlet 311 through the feed groove 332. An injection channel 335 is formed inside each injection rod 331; during material injection, the suction chamber 3121 is connected to the injection head through the injection channel 335. The injection rods 331 are driven by a second driving device 50.
[0045] In this embodiment, both ends of the injection rod 331 are fitted with first sealing rings 333 to seal the injection chamber 3122, which prevent leakage from the injection chamber 3122. Two second sealing rings 334 are fitted between the feed trough 332 and the liquid inlet end of the injection channel. The second sealing rings 334 increase the sealing performance of the feed channel and the discharge channel, prevent them from affecting each other, and increase the accuracy of the infusion dosage.
[0046] During use, if the injection rod 331 is not properly sealed, the suppository will drip down the inner wall of the injection chamber 3122 onto the suppository shell surface, affecting the product's appearance. Therefore, in this embodiment, a main overflow channel 313 is provided at the bottom of the pump body 31, and a storage ring groove 3131 is provided at the bottom of the injection rod 331. The storage ring groove 3131 is connected to the main overflow channel 313 through an overflow hole, and a third sealing ring 3132 is provided between the storage ring groove 3131 and the feed groove 332. The storage ring groove 3131 can temporarily store suppositories that leak due to sealing problems. When the injection rod 331 moves upward, the suppository in the storage ring groove 3131 will flow out through the overflow hole.
[0047] In this embodiment, the first driving device 40 includes a first driving member 41 mounted on the frame 10 and a first driving assembly 42 connected to the output end of the first driving member 41. The first driving member 41 drives the filling piston rod 321 to move up and down through the first driving assembly 42. The first driving assembly 42 includes a driving piston member 421 mounted on the frame 10 and a connecting plate 422 connected to the filling piston rod 321. The driving piston member 421 is connected to the output end of the first driving member 41, and the connecting plate 422 is sleeved on the driving piston member 421. Thus, under the drive of the first driving member 41, the driving piston member 421 drives the filling piston rod 321 to move up and down through the connecting plate 422.
[0048] In this embodiment, the second driving device 50 includes a second driving member 51 disposed on the frame 10 and a second driving assembly 52 connected to the output end of the second driving member 51. The second driving member 51 drives the injection rod 331 to move up and down through the second driving assembly 52. The second drive assembly 52 includes two lever plates 521, a drive rod 522, a connecting rod 523, and four support rods 524. The two lever plates 521 are rotatably mounted on the frame 10. Each of the two lever plates 521 has two fulcrum slots 5211 on its lower wall. The drive rod 522 is located at the output end of the second drive member 51, and its two ends are connected to one end of each of the two lever plates 521. The connecting rod 523 is connected to the injection rod 331, and its two ends are connected to the other end of each of the two lever plates 521. The four support rods 524 are mounted on the frame 10 and are arranged in two groups below the corresponding lever plates 521. Specifically, when the second drive member 51 drives the two lever plates 521 to rotate via the drive rod 522, the two fulcrum slots 5211 on the lever plates 521 alternately engage with the corresponding two support rods 524.
[0049] like Figure 7 As shown, the third driving device 60 is used to control the front template 22 and the rear template to slide on the two guide posts 21, thereby clamping or releasing the bolt shell. The third driving device 60 includes a front guide rod 61 fixed on the front template 22, a rear connecting rod 62 hinged to the back of the rear template 23, and a rotating sleeve 63 rotatably mounted on the frame 10. The rotating sleeve 63 is driven by the third driving member 66. A spring 64 is sleeved on the outside of the front guide rod 61 and movably mounted on the frame 10. A front connecting rod 65 is hinged to the outer end of the front guide rod 61. The front connecting rod 65 and the rear connecting rod 62 are respectively hinged to the rotating sleeve 63. The rotation of the rotating sleeve 63 enables the front template 22 and the rear template 23 to move in the same direction or in opposite directions.
[0050] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A suppository lever-based injection device, characterized in that, include: frame; The clamping device includes two guide columns fixed on the frame, a front template, a rear template, and a pouring material rack disposed between the front template and the rear template; A filling device, mounted on the frame and located above the clamping device, includes a pump body, a suction piston assembly, and an injection assembly. The pump body is provided with a feed inlet and several injection channels. Each injection channel includes a suction chamber and an injection chamber. The suction chamber is connected to the feed inlet through the injection chamber. The suction piston assembly includes a plurality of filling piston rods movably disposed in the corresponding suction chambers, and the filling piston rods are driven by the first driving device described below. The injection assembly includes a plurality of injection rods movably disposed in the corresponding injection chambers. The outer wall of each injection rod is provided with a feed groove. The injection rods are driven by the second driving device described below. The first driving device includes a first driving member disposed on the frame and a first driving assembly connected to the output end of the first driving member. The first driving member drives the injection piston rod to move up and down through the first driving assembly. The second driving device includes a second driving member disposed on the frame and a second driving assembly connected to the output end of the second driving member. The second driving member drives the injection rod to move up and down through the second driving assembly. During material suction, the suction chamber is connected to the feed inlet through the feed groove, and the injection rod has an injection channel inside; during material injection, the suction chamber is connected to the injection head through the injection channel.
2. The suppository lever principle injection device according to claim 1, characterized in that: in, Both ends of the injection rod are provided with a first sealing ring, and a second sealing ring is provided between the feed groove and the liquid inlet end of the injection channel.
3. The suppository lever principle injection device according to claim 1, characterized in that: in, The pump body has a main overflow channel at the bottom, and the injection rod has a storage ring groove at the bottom. The storage ring groove is connected to the main overflow channel through an overflow hole, and a third sealing ring is provided between the storage ring groove and the feed groove.
4. The suppository lever principle injection device according to claim 1, characterized in that: in, The first drive assembly includes a drive piston mounted on the frame and a connecting plate connected to the injection piston rod. The drive piston is connected to the output end of the first drive assembly, and the connecting plate is sleeved on the drive piston, so that the drive piston, driven by the first drive assembly, drives the injection piston rod to move up and down through the connecting plate.
5. The suppository lever principle injection device according to claim 1, characterized in that: The second drive assembly includes two levers, a drive rod, a connecting rod, and four support rods. The two levers are rotatably mounted on the frame. Each of the two levers has two fulcrum slots on its lower wall. The drive rod is mounted on the output end of the second drive assembly. Both ends of the drive rod are connected to one end of each of the two levers. The connecting rod is connected to the injection rod. Both ends of the connecting rod are connected to the other end of each of the two levers. The four support rods are mounted on the frame and are arranged in two groups below the corresponding levers. When the second driving member drives the two levers to rotate via the driving rod, the two fulcrum slots on the levers alternately engage with the corresponding two support rods.
6. The suppository lever principle injection device according to claim 1, characterized in that, Also includes: The third driving device is used to control the front template and the rear template to slide on the two guide posts, thereby clamping or releasing the bolt shell. The third driving device includes a front guide rod fixed on the front template, a rear connecting rod hinged to the back of the rear template, and a rotating sleeve rotatably mounted on the frame. The rotating sleeve is driven by the third driving component. A spring is sleeved on the outside of the front guide rod and movably mounted on the frame. The outer end of the front guide rod is hinged to a front connecting rod. The front connecting rod and the rear connecting rod are respectively hinged to the rotating sleeve. The rotation of the rotating sleeve enables the front template and the rear template to move in the same direction or in opposite directions.