Strain injection device capable of automatically adjusting pressure
The automatic pressure-regulating bacterial injection device solves the problem of difficulty in controlling the flow rate and pressure of the drug by manually pushing the piston, ensuring the accuracy of drug dosage and the stability of the injection process, and improving the uniformity and efficiency of bacterial culture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN KAICHENG PHARMACEUTICAL TRADING CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-05-01
AI Technical Summary
In existing bacterial injection devices, manually pushing the piston makes it difficult to precisely control the speed and pressure of the drug flow, resulting in uneven drug injection and affecting the bacterial culture effect and reproduction efficiency.
An automatic pressure-adjusting bacterial injection device was designed. The device precisely pushes the syringe piston through an adjustment structure and ensures the stability of the injection process and the consistency of the drug dosage through an auxiliary structure with properly wound wires.
This achieves accurate drug dosage and stable injection process, avoids spontaneous piston movement and wire damage caused by temperature fluctuations, and improves the uniformity and efficiency of bacterial culture.
Smart Images

Figure CN224186164U_ABST
Abstract
Description
An automatically pressure-regulated bacterial injection device Technical Field
[0001] This utility model relates to the field of bacterial inoculation equipment, and in particular to a bacterial inoculation device with automatic pressure adjustment. Background Technology
[0002] In modern agriculture, food processing, pharmaceuticals and other industries, microbial inoculation devices are one of the key pieces of equipment and are widely used in the processes of microbial cultivation, fermentation and inoculation. Especially in the process of microbial inoculation, ensuring that the injection device has high-precision pressure control is directly related to the inoculation effect and the quality of microbial growth. Therefore, microbial inoculation devices with automatic pressure adjustment play an increasingly important role in these industries.
[0003] Existing technologies, such as the utility model with publication number CN219032124U, disclose an injection device for a microbial culture medium machine. This patent includes a working platform with a groove at its top. A culture medium body is placed inside the groove. A support mechanism is fixedly installed on the top of the working platform, and an injection needle body is placed on top of the support mechanism. A baffle plate is fixedly connected to one outer wall of the injection needle body. A support plate is fixedly connected to the top of the working platform, and a fixing plate is fixedly connected to one end of the support plate. A mounting plate is fixedly connected to the bottom of the fixing plate, and an electric telescopic rod is fixedly installed at the bottom of the mounting plate. A pressure plate is fixedly connected to one end of the electric telescopic rod. This utility model relates to the field of microbial culture application technology. This utility model solves the problem that existing injection devices may aspirate the culture medium and microbial inoculum after injection, seriously affecting the culture medium's effectiveness in cultivating microorganisms.
[0004] In daily use, it has been found that during the culture process, the operator usually manually pushes the piston of the injection needle to inject the internal medicine into the culture vessel. However, manually pushing the piston makes it difficult to accurately control the speed and pressure of the medicine flow, which can easily lead to uneven injection and thus affect the growth and reproduction efficiency of the bacteria during the culture process.
[0005] Therefore, it is necessary to provide a new type of automatically pressure-adjustable bacterial injection device to solve the above-mentioned technical problems. Summary of the Invention
[0006] The purpose of this invention is to address the shortcomings of existing technologies where manual piston-driven injection makes it difficult to precisely control the speed and pressure of drug flow, which can easily lead to uneven drug injection and thus affect the growth and reproduction efficiency of the strain during the cultivation process. Therefore, this invention proposes an automatic pressure-adjusting strain injection device.
[0007] To solve the above-mentioned technical problems, this utility model provides an automatically pressure-adjustable bacterial injection device, comprising: a base plate, a support rod mounted on the upper surface of the base plate, a plurality of casters mounted on the lower surface of the base plate, an adjustment structure provided on the upper surface of the support rod, the adjustment structure including a housing, the housing and the support rod being fixedly connected, a control panel mounted on the upper surface of the housing, an electric push rod mounted on the inner wall of the housing, a sliding groove opened on one side of the housing, an auxiliary plate slidably connected to the inner wall of the sliding groove, the auxiliary plate being fixedly connected to the output end of the electric push rod, a locking block fixedly connected to one side of the auxiliary plate, a limiting block fixedly connected to one side of the housing, a connecting plate fixedly connected to one side of the locking block, a limiting plate slidably connected to the inner wall of the connecting plate, a fixing block fixedly connected to the side of the limiting plate, a pull plate fixedly connected to one side of the limiting plate, a plurality of springs fixedly connected to one side of the pull plate, and the other ends of the plurality of springs being fixedly connected to the connecting plate.
[0008] The effect achieved by the above components is that, by setting an adjustment structure, the piston of the syringe can be precisely pushed to ensure that the dosage of the drug injected each time is accurate and to avoid the piston inside the syringe from moving on its own due to large temperature differences.
[0009] Preferably, anti-slip textures are provided on both sides of the pull plate, and the anti-slip textures are evenly distributed on both sides of the pull plate.
[0010] The effect achieved by the above components is that the anti-slip texture can increase the friction of the pull plate, preventing people's hands from slipping when moving the pull plate.
[0011] Preferably, a plurality of ball bearings are fixedly connected to both sides of the auxiliary plate, and the ball bearings have a circular cross-section.
[0012] The effect achieved by the above components is that the ball bearings can reduce the friction of the auxiliary plate, making the auxiliary plate move more smoothly in the groove.
[0013] Preferably, a limiting rod is fixedly connected to the inner wall of the chute, and the limiting rod and the auxiliary plate are slidably connected.
[0014] The effect achieved by the above components is that the limiting rod can limit the auxiliary plate and prevent the auxiliary plate from shifting during movement.
[0015] Preferably, an auxiliary structure is provided on one side of the chassis. The auxiliary structure includes a circular plate, which is fixedly connected to the chassis. Several sliding rods are fixedly connected to one side of the circular plate. The arc surfaces of the several sliding rods are slidably connected to the same fixed disk. A screw is rotatably connected to one side of the circular plate. The screw is threadedly connected to the fixed disk. One end of the screw is fixedly connected to a turntable.
[0016] The effect achieved by the above components is that by setting up auxiliary structures, excess wires can be easily wrapped and fixed, avoiding the situation where excessively long wires can easily become knotted and damage the circuit.
[0017] Preferably, a soft pad, which is a rubber pad, is fixedly connected to one side of the fixed plate.
[0018] The effect achieved by the above components is that the soft pad can prevent the fixing plate from directly contacting the wire, thus preventing the wire from being worn.
[0019] Preferably, a positioning block is fixedly connected to one end of the slide rod.
[0020] The effect achieved by the above components is that the positioning block can limit the sliding rod and prevent the sliding rod and the fixed plate from separating.
[0021] Compared with related technologies, the automatic pressure-adjusting bacterial injection device provided by this utility model has the following beneficial effects:
[0022] By setting up an adjustment structure, the syringe piston can be accurately pushed, ensuring precise and controllable piston movement, thereby guaranteeing the accuracy of the drug dosage for each injection. At the same time, this structure effectively avoids spontaneous piston movement caused by large temperature fluctuations, ensuring the stability of the injection process and the consistency of the drug dosage.
[0023] By setting up auxiliary structures, excess wires can be easily and properly wrapped and fixed, effectively avoiding knots and tangles caused by loose wires when they are too long, thereby reducing the risk of damage caused by pressure or pulling on the wires. Attached Figure Description
[0024] Figure 1 is a schematic diagram of the structure of an automatically pressure-adjustable bacterial injection device provided by this utility model;
[0025] Figure 2 is a schematic diagram of the adjustment structure shown in Figure 1;
[0026] Figure 3 is a partial structural schematic diagram of the adjustment structure shown in Figure 2;
[0027] Figure 4 is a schematic diagram of the auxiliary structure shown in Figure 1.
[0028] The following are the labeling elements in the diagram: 1. Base plate; 2. Casters; 3. Support rod; 4. Adjustment structure; 401. Chassis; 402. Control panel; 403. Electric actuator; 404. Slide groove; 405. Auxiliary plate; 406. Locking block; 407. Limiting block; 408. Connecting plate; 409. Limiting plate; 410. Fixing block; 411. Pull plate; 412. Spring; 413. Anti-slip texture; 414. Limiting rod; 415. Ball bearing; 5. Auxiliary structure; 51. Circular plate; 52. Slide rod; 53. Fixing disc; 54. Screw; 55. Turntable; 56. Soft pad; 57. Positioning block. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0031] Please refer to Figures 1 to 4. An embodiment of the present invention provides an automatic pressure-adjustable bacterial injection device, comprising: a base plate 1, a support rod 3 mounted on the upper surface of the base plate 1, a plurality of casters 2 mounted on the lower surface of the base plate 1, an adjustment structure 4 provided on the upper surface of the support rod 3, and an auxiliary structure 5 provided on one side of the housing 401.
[0032] In an embodiment of this utility model, please refer to Figures 2 and 3. The adjustment structure 4 includes a housing 401, which is fixedly connected to a support rod 3. A control panel 402 is mounted on the upper surface of the housing 401. An electric actuator 403 is mounted on the inner wall of the housing 401. A sliding groove 404 is provided on one side of the housing 401. An auxiliary plate 405 is slidably connected to the inner wall of the sliding groove 404. The auxiliary plate 405 is fixedly connected to the output end of the electric actuator 403. One side of the auxiliary plate 405... A locking block 406 is fixedly connected to one side of the chassis 401. A limiting block 407 is fixedly connected to one side of the locking block 406. A connecting plate 408 is fixedly connected to one side of the locking block 406. A limiting plate 409 is slidably connected to the inner wall of the connecting plate 408. A fixing block 410 is fixedly connected to the side of the limiting plate 409. A pull plate 411 is fixedly connected to one side of the limiting plate 409. Several springs 412 are fixedly connected to one side of the pull plate 411. The other ends of the several springs 412 are connected to the connecting plate 408. The fixed connection, through the setting of the adjustment structure 4, can precisely push the piston of the syringe, ensuring the accuracy of the drug dosage injected each time, and avoiding the piston inside the syringe from moving on its own due to large temperature differences. The pull plate 411 has anti-slip textures 413 on both sides, which are evenly distributed on both sides of the pull plate 411. The anti-slip textures 413 can increase the friction of the pull plate 411 and prevent the personnel from slipping when moving the pull plate 411. Several balls 415 are fixedly connected to both sides of the auxiliary plate 405. The cross-section of the balls 415 is circular. The balls 415 can reduce the friction of the auxiliary plate 405, making the auxiliary plate 405 move more smoothly in the slide groove 404. The inner wall of the slide groove 404 is fixedly connected to the limit rod 414. The limit rod 414 and the auxiliary plate 405 are slidably connected. The limit rod 414 can limit the auxiliary plate 405 and prevent the auxiliary plate 405 from deviating during the movement.
[0033] In an embodiment of this utility model, please refer to Figure 4. The auxiliary structure 5 includes a circular plate 51, which is fixedly connected to the chassis 401. A plurality of sliding rods 52 are fixedly connected to one side of the circular plate 51. The arc surfaces of the plurality of sliding rods 52 are slidably connected to the same fixed disk 53. A screw 54 is rotatably connected to one side of the circular plate 51. The screw 54 is threadedly connected to the fixed disk 53. A turntable 55 is fixedly connected to one end of the screw 54. By setting the auxiliary structure 5, excess wires can be easily wrapped and fixed, avoiding the situation where the wires are too long and easily get tangled, causing damage to the circuit. A soft pad 56 is fixedly connected to one side of the fixed disk 53. The soft pad 56 is a rubber pad. The soft pad 56 can prevent the fixed disk 53 from directly contacting the wires, thus avoiding the phenomenon of wire wear. A positioning block 57 is fixedly connected to one end of the sliding rod 52. The positioning block 57 can limit the sliding rod 52 and prevent the sliding rod 52 and the fixed disk 53 from separating.
[0034] The working principle of the automatically pressure-adjustable bacterial injection device provided by this utility model is as follows: By setting the adjustment structure 4, the pull plate 411 is first pulled by the anti-slip texture 413, causing the pull plate 411 to move the limiting plate 409 inside the connecting plate 408. At the same time, the fixing block 410 on the limiting plate 409 will limit it to prevent it from falling off. When the pull plate 411 moves, it will drive the spring 412 to stretch. At this time, the injection needle is inserted into the locking block 406 and the limiting block 407. Then, the pull plate 411 is released. When the pull plate 411 is released, the spring 412 will drive it to move. The pull plate 411 will then drive the limiting plate 409 to move inside the connecting plate 408, so that the limiting plate 409 limits the injection needle. Finally, the device is started using the button on the control panel 402. The electric push rod 403 inside the housing 401 drives the auxiliary plate 405 to move within the slide groove 404. As the auxiliary plate 405 moves, it also drives the locking block 406 to move, which in turn drives the piston of the injection needle. The piston's movement speed is controlled by the control chip inside the housing 401 to ensure the stability of the injection process and the consistency of the drug dosage. The anti-slip texture 413 increases the friction of the pull plate 411, preventing the operator's hand from slipping when moving the pull plate 411. The ball bearing 415 reduces the friction of the auxiliary plate 405, allowing it to move more smoothly within the slide groove 404. The limiting rod 414 limits the auxiliary plate 405 to prevent it from shifting during movement.
[0035] By setting up the auxiliary structure 5, the base plate 1 is first moved with the help of the casters 2, so that the base plate 1 moves the support rod 3 to a suitable position. While the support rod 3 is moving, it also moves the entire adjustment structure 4. Then, the excess wire is wound around the slide rod 52 of the circular plate 51. Then, the turntable 55 drives the screw 54 to rotate. When the screw 54 rotates, it drives the fixed plate 53 to move, so that the fixed plate 53 limits the wire. The soft pad 56 can prevent the fixed plate 53 from directly contacting the wire, thus preventing the wire from being worn. The positioning block 57 can limit the slide rod 52, preventing the slide rod 52 and the fixed plate 53 from separating.
[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An automatically pressure-adjustable bacterial injection device, characterized in that, include: A base plate (1) is provided, on the upper surface of which a support rod (3) is installed, and on the lower surface of which several casters (2) are installed. An adjustment structure (4) is provided on the upper surface of the support rod (3). The adjustment structure (4) includes a housing (401), which is fixedly connected to the support rod (3). A control panel (402) is installed on the upper surface of the housing (401). An electric push rod (403) is installed on the inner wall of the housing (401). A sliding groove (404) is provided on one side of the housing (401). An auxiliary plate (405) is slidably connected to the inner wall of the sliding groove (404). The auxiliary plate (405) and the electric push rod (403) are connected to each other. The output end of 03) is fixedly connected, a locking block (406) is fixedly connected to one side of the auxiliary plate (405), a limiting block (407) is fixedly connected to one side of the chassis (401), a connecting plate (408) is fixedly connected to one side of the locking block (406), a limiting plate (409) is slidably connected to the inner wall of the connecting plate (408), a fixing block (410) is fixedly connected to the side of the limiting plate (409), a pull plate (411) is fixedly connected to one side of the limiting plate (409), a plurality of springs (412) are fixedly connected to one side of the pull plate (411), and the other end of the plurality of springs (412) is fixedly connected to the connecting plate (408).
2. The automatically pressure-adjustable bacterial injection device according to claim 1, characterized in that, The pull plate (411) has anti-slip textures (413) on both sides, and the anti-slip textures (413) are evenly distributed on both sides of the pull plate (411).
3. The automatically pressure-adjustable bacterial injection device according to claim 1, characterized in that, Several balls (415) are fixedly connected to both sides of the auxiliary plate (405), and the cross-section of the balls (415) is circular.
4. The automatically pressure-adjustable bacterial injection device according to claim 1, characterized in that, The inner wall of the slide (404) is fixedly connected to a limiting rod (414), and the limiting rod (414) is slidably connected to the auxiliary plate (405).
5. The automatically pressure-adjustable bacterial injection device according to claim 1, characterized in that, An auxiliary structure (5) is provided on one side of the chassis (401). The auxiliary structure (5) includes a circular plate (51). The circular plate (51) is fixedly connected to the chassis (401). A plurality of sliding rods (52) are fixedly connected to one side of the circular plate (51). The arc surfaces of the plurality of sliding rods (52) are slidably connected to the same fixed disk (53). A screw (54) is rotatably connected to one side of the circular plate (51). The screw (54) is threadedly connected to the fixed disk (53). A turntable (55) is fixedly connected to one end of the screw (54).
6. The automatically pressure-adjustable bacterial injection device according to claim 5, characterized in that, A soft pad (56) is fixedly connected to one side of the fixed plate (53), and the soft pad (56) is a rubber pad.
7. The automatically pressure-adjustable bacterial injection device according to claim 5, characterized in that, A positioning block (57) is fixedly connected to one end of the slide rod (52).
Citation Information
Patent Citations
Injection device for strain culture medium machine
CN219032124U