Combined inoculating head with detachable alloy inoculating loop
By combining a detachable alloy inoculation ring with a mounting base, the problems of high cost and inflexible operation of traditional inoculation rings are solved, achieving the effect of reducing production costs and improving flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN XUDEXI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional inoculation loops have a one-piece structure, which leads to high production costs and inflexible operation of automated culture equipment, making it difficult to meet diverse streaking needs.
The system adopts a combination structure of detachable alloy inoculation ring and mounting base, including connecting cylinder, mounting base, alloy inoculation ring, magnetic head and return spring. The detachable design reduces production costs and improves flexibility.
It reduces mass production costs, simplifies assembly, improves the flexibility and lifespan of the inoculation head, and meets the diverse operational needs of automated culture equipment.
Smart Images

Figure CN224199377U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of microbial culture inoculation equipment, and in particular relates to a combined inoculation head containing a detachable alloy inoculation ring. Background Technology
[0002] Inoculation heads and loops are fundamental tools used in microbial culture to transfer various microorganisms to the culture medium or to capture the medium. Their basic structure includes an operating part and an inoculation loop. Traditional inoculation loops are usually a single unit. To meet the needs of automated microbial culture equipment, CN202122509758.6 provides a magnetic scribing head structure, which uses a movable structure and a bottom ring-shaped inoculation structure to achieve inoculation scribing. However, its overall cost is high, and the fixed operating direction of the bottom inoculation loop in a single unit structure is not conducive to more flexible and diverse automated scribing operations. Utility Model Content
[0003] The purpose of this invention is to provide a combined inoculation head containing a detachable alloy inoculation ring, based on actual needs, to reduce the cost of mass production of inoculation heads, simplify the difficulty of inoculation head production and assembly, and improve its flexibility.
[0004] To achieve the above objectives, the present invention adopts the following technical solution.
[0005] A combined inoculation head containing a detachable alloy inoculation ring includes a connecting cylinder 1, a mounting base 2, an alloy inoculation ring 3, a magnetic suction head 4, and a return spring 5;
[0006] The connecting cylinder 1 is vertically arranged, and its lower inner edge is provided with an annular limiting part 1a;
[0007] The mounting base 2 is slidably disposed in the connecting cylinder 1. The upper end of the mounting base 2 is provided with an annular positioning part 2a, which abuts against the limiting part 1a so that the upper end of the mounting base 2 remains in the connecting cylinder 1. The lower end of the mounting base 2 is provided with a connecting part 2b, and a mounting hole 2c is provided on one side of the connecting part 2b. A clamping block structure 2d is provided on the lower side of the mounting hole 2c.
[0008] The alloy inoculation ring 3 has a C-shaped structure, including a horizontal section 3a that is inserted into the mounting hole 2c at the upper end, a positioning section 3b that is vertically engaged in the clamping block structure 2d in the middle section, and an annular section 3c at the bottom.
[0009] The magnetic head 4 is embedded in the top opening of the connecting cylinder 1, and the reset spring 5 is located inside the connecting cylinder 1 with its two ends abutting against the magnetic head 4 and the mounting base 2 respectively.
[0010] In a further improvement or preferred embodiment of the aforementioned combined inoculation head containing a detachable alloy inoculation ring, the alloy inoculation ring 3 is made of 304 stainless steel, nickel-cadmium alloy wire, or platinum wire with a diameter of 0.5 mm or 0.6 mm, bent into shape.
[0011] In a further improved or preferred embodiment of the aforementioned combined inoculation head containing a detachable alloy inoculation ring, the inner diameter of the annular segment 3c is 2 mm or 3 mm.
[0012] In a further improved or preferred embodiment of the aforementioned combined inoculation head containing a detachable alloy inoculation ring, the clamping block structure 2d is provided with a cross-shaped groove 2e, the vertical groove of the cross-shaped groove 2e being directly opposite the mounting hole 2c.
[0013] In a further improved or preferred embodiment of the aforementioned combined inoculation head containing a detachable alloy inoculation ring, the annular segment 3c forms an angle of 0 to 5° with the horizontal direction.
[0014] In a further improved or preferred embodiment of the aforementioned combined inoculation head containing a detachable alloy inoculation ring, the upper section of the mounting base 2 is provided with an annular positioning groove 2f, and the lower end of the reset spring 5 is inserted into the annular positioning groove 2f.
[0015] Its beneficial effects are as follows:
[0016] This application presents a combined inoculation head with a detachable alloy inoculation ring to meet the needs of mass production and rapid assembly of automated scribing heads. It provides a structure with a detachable alloy inoculation ring, which retains the advantages of alloy inoculation ring manufacturing and materials, while providing an effective way to meet the connection and assembly of automated scribing structures. As a detachable independent structure, the alloy inoculation ring can be manufactured, processed, sterilized, and maintained independently, and then assembled and used uniformly, which can effectively reduce the cost of using and maintaining mass scribing equipment. Attached Figure Description
[0017] Figure 1 It is a side view of the combined inoculation head containing a detachable alloy inoculation ring;
[0018] Figure 2 This is a front view of a combined inoculation head containing a detachable alloy inoculation ring;
[0019] Figure 3 It is a cross-sectional view of a combined inoculation head containing a detachable alloy inoculation ring;
[0020] Figure 4 This is a front view of the combined inoculation head containing a detachable alloy inoculation ring;
[0021] The reference numerals in the attached figures include:
[0022] Connecting cylinder (1), limiting part (1a), mounting base (2), positioning part (2a), connecting part (2b), mounting hole (2c), clamping block structure (2d), cross-shaped slot (2e), annular positioning groove (2f), alloy inoculation ring (3), horizontal section (3a), positioning section (3b), annular section (3c), magnetic suction head (4), and return spring (5). Detailed Implementation
[0023] The present invention will be described in detail below with reference to specific embodiments.
[0024] Compared to existing automated line inoculation heads, this invention provides a combined inoculation head with a detachable alloy inoculation ring. The detachable alloy inoculation ring, combined with a mounting base, offers a longer lifespan and a more mature and simpler manufacturing process. It also allows for quick assembly and replacement, improving the efficiency of automated production assembly. In mass production assembly, it effectively reduces material and processing costs while increasing service life and structural stability. The detachable alloy inoculation ring provides greater flexibility, customizability, and free combination capabilities, allowing for the use of inoculation rings of different sizes and types according to production assembly needs, effectively enhancing the flexibility of automated line marking equipment.
[0025] like Figure 1 , Figure 2 As shown, the main structure of a combined inoculation head containing a detachable alloy inoculation ring according to this application includes a connecting cylinder 1, a mounting base 2, an alloy inoculation ring 3, a magnetic suction head 4, and a return spring 5.
[0026] The connecting cylinder 1 and the magnetic head 4 are used to construct the basic support connection structure. The magnetic head can be directly attached to the magnetic head of the automatic scribing device for fixation. The return spring is used to provide reset and control the scribing force during the scribing process to prevent the scribing head from directly pressing against the culture medium.
[0027] like Figure 3 As shown, the connecting cylinder 1 is arranged vertically, and its lower inner edge is provided with an annular limiting part 1a;
[0028] The mounting base 2 is slidably disposed in the connecting cylinder 1. The upper end of the mounting base 2 is provided with an annular positioning part 2a, which abuts against the limiting part 1a so that the upper end of the mounting base 2 remains in the connecting cylinder 1. The lower end of the mounting base 2 is provided with a connecting part 2b, and a mounting hole 2c is provided on one side of the connecting part 2b. A clamping block structure 2d is provided on the lower side of the mounting hole 2c.
[0029] The alloy inoculation ring 3 has a C-shaped structure, including a horizontal section 3a that is inserted into the mounting hole 2c at the upper end, a positioning section 3b that is vertically engaged in the clamping block structure 2d in the middle section, and an annular section 3c at the bottom.
[0030] The magnetic head 4 is embedded in the top opening of the connecting cylinder 1, and the reset spring 5 is located inside the connecting cylinder 1 with its two ends abutting against the magnetic head 4 and the mounting base 2 respectively.
[0031] The design of the detachable inoculation ring allows for easy assembly and disassembly. The alloy inoculation ring 3 with metal structure can be removed separately for high-temperature sterilization and other treatments. At the same time, its simple structure and easy processing make it suitable for mass production.
[0032] The alloy inoculation ring 3 can be quickly clamped and fixed through the horizontal section 3a and the positioning section 3b, achieving vertical and left-right lateral positioning, and ensuring that the alloy inoculation ring 3 maintains its relatively fixed position during the automatic marking process.
[0033] Compared to inoculation rings made of plastic or other materials, alloy inoculation rings can better control the shape and size of the ring segment by making full use of mature and efficient metal processing technology, achieving more precise customization and processing design. At the same time, the alloy ring has better adhesion ability, and the connection gap at the end of the metal inoculation ring provides an additional attachment surface, giving it better microbial carrying capacity. During the streaking process, it can release microbial samples more evenly and stably, thereby meeting the needs of more refined streaking processes and improving the basic capabilities of automated streaking culture equipment in terms of structure and performance.
[0034] Based on practical needs, the alloy inoculation ring 3 in this utility model is preferably made of 304 stainless steel, or nickel-cadmium alloy wire, or platinum wire, and is prepared by bending, and the necessary surface treatment is carried out according to its use requirements.
[0035] It can usually be prepared using alloy wires with diameters of 0.5 mm, 0.6 mm, or other sizes as needed.
[0036] To meet the necessary control accuracy, the inner diameter of the annular segment 3c needs to be optimized accordingly. Commonly, it can be designed with an inner diameter of 2mm or 3mm. In other cases, an annular segment with a maximum inner diameter of 5mm can also be used.
[0037] The clamping structure is used to prevent the alloy inoculation ring 3 from swinging left and right, and to ensure that the positioning section 3b of the alloy inoculation ring remains vertical during the scribing process, so as to facilitate the control of the scribing process.
[0038] As a simple and efficient design solution, in this embodiment, the clamping block structure 2d is provided with a cross-shaped slot 2e, and the vertical groove of the cross-shaped slot 2e is directly opposite the mounting hole 2c.
[0039] During actual assembly, after inserting the horizontal section 3a into the mounting hole 2c, the positioning section 3b can be locked in place by the vertical groove.
[0040] To ensure the accuracy of the streaking of the annular segment 3c and to guarantee the uniform extraction of microorganisms from the annular segment 3c, the annular segment 3c forms an angle of 0–5° with the horizontal direction (i.e., Figure 3 (included angle a).
[0041] like Figure 4 As shown, specifically, to facilitate the installation and positioning of the return spring and provide sufficient elastic deformation range, an annular positioning groove 2f is provided on the upper section of the mounting base 2, and the lower end of the return spring 5 is inserted into the annular positioning groove 2f. The annular positioning groove 2f can limit and guide the spring, improving the performance of the scribing head.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A combined inoculation head containing a detachable alloy inoculation ring, characterized in that, Includes a connecting cylinder (1), a mounting base (2), an alloy inoculation ring (3), a magnetic suction head (4), and a return spring (5); The connecting cylinder (1) is vertically arranged, and its lower inner edge is provided with an annular limiting part (1a); The mounting base (2) is slidably disposed in the connecting cylinder (1). The upper end of the mounting base (2) is provided with an annular positioning part (2a), which abuts against the limiting part (1a) so that the upper end of the mounting base (2) remains in the connecting cylinder (1). The lower end of the mounting base (2) is provided with a connecting part (2b), and a mounting hole (2c) is provided on one side of the connecting part (2b). A clamping block structure (2d) is provided on the lower side of the mounting hole (2c). The alloy inoculation ring (3) has a C-shaped structure, including a horizontal section (3a) inserted into the mounting hole (2c) at the top, a positioning section (3b) that is vertically engaged in the clamping block structure (2d) in the middle, and an annular section (3c) at the bottom; The magnetic head (4) is embedded in the top opening of the connecting cylinder (1), and the reset spring (5) is located inside the connecting cylinder (1) with its two ends abutting against the magnetic head (4) and the mounting base (2) respectively.
2. The combined inoculation head containing a detachable alloy inoculation ring according to claim 1, characterized in that, The alloy inoculation ring (3) is made of 304 stainless steel, nickel-cadmium alloy wire, or platinum wire with a diameter of 0.5 mm or 0.6 mm.
3. The combined inoculation head containing a detachable alloy inoculation ring according to claim 1, characterized in that, The inner diameter of the annular segment (3c) is 2 mm or 3 mm.
4. The combined inoculation head containing a detachable alloy inoculation ring according to claim 1, characterized in that, The clamping block structure (2d) is provided with a cross-shaped slot (2e), and the vertical groove of the cross-shaped slot (2e) is directly opposite the mounting hole (2c).
5. The combined inoculation head containing a detachable alloy inoculation ring according to claim 1, characterized in that, The annular segment (3c) forms an angle of 0 to 5° with the horizontal direction.
6. The combined inoculation head containing a detachable alloy inoculation ring according to claim 1, characterized in that, The upper section of the mounting base (2) is provided with an annular positioning groove (2f), and the lower end of the reset spring (5) is inserted into the annular positioning groove (2f).
Citation Information
Patent Citations
Magnetic scribing head
CN216274113U