Specialized tweezers for tissue culture inoculation
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN FREEZE BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-03
AI Technical Summary
Existing tissue culture inoculation forceps have large blind spots when dealing with culture containers of different depths, the blade extension length cannot be adjusted, and there is a lack of protection when not in use, which affects the accuracy and safety of operation.
A special cutting forceps for tissue culture inoculation was designed, comprising a first forceps body, a second forceps body, and an adjustment mechanism. The blade extension length can be adjusted by rotating a knob, and the blade can be stored in a protective shell when not in use. Precise adjustment and protection are achieved through gear transmission and sliding connection.
It improves the adaptability and efficiency of tissue culture operations, prevents blades from being contaminated with impurities and damaged, ensures operational safety, and extends service life.
Smart Images
Figure CN224439955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting forceps technology, and in particular to a special cutting forceps for tissue culture inoculation. Background Technology
[0002] Plant tissue culture is an important technology in modern agriculture and bioscience. By culturing plant cells, tissues, or organs under sterile conditions, it enables rapid plant propagation, virus-free seedling production, and the breeding of new varieties. In the tissue culture inoculation stage, explants need to be precisely cut and inoculated onto the culture medium. This process demands extremely high precision, flexibility, and safety from the tools used.
[0003] Existing technologies, such as the utility model patent with publication number CN216219383U, disclose a special cutting forceps for tissue culture inoculation, relating to the field of cutting forceps technology. It includes two cutting arms hinged at the middle, with a return spring fixedly connected between the two arms. Each cutting arm has an adjusting handle at its top, and blades are fixedly connected to the lower ends of the two arms on opposite sides. Each cutting arm has a clamping mechanism on its lower outer surface, and an adjusting mechanism between each cutting arm and the adjusting handle. This utility model, through the coordinated design of the cutting arms, blades, adjusting handle, clamping mechanism, and adjusting mechanism, allows for the trimming of excess roots and stems of seedlings with the blades. The clamping mechanism facilitates the removal of seedlings and their transfer to other culture containers. The adjusting mechanism allows for adjustment of the length of the adjusting handle, facilitating operation on seedlings in culture containers of different heights, making it convenient for operators and meeting their needs.
[0004] The aforementioned technologies can only adapt to different height culture vessels by adjusting the handle length, but the blade extension length itself cannot be adjusted. When dealing with tissues in culture containers of varying depths, especially tissues at the bottom of deeper containers, it is difficult to accurately reach and cut them, creating blind spots and significantly limiting its application. Furthermore, the blade is exposed when not in use, without any protective structure. During storage, it is highly susceptible to contamination with dust, microorganisms, and other impurities, affecting the aseptic environment for subsequent tissue culture inoculation. Additionally, the exposed blade is prone to deformation and damage from impacts, shortening its lifespan and posing a safety hazard of cutting operators. Utility Model Content
[0005] The purpose of this invention is to solve the problems in the existing technology, such as the difficulty in adjusting the extension length of the cutting forceps, its unsuitability for culture cups of different depths, and its poor protection effect when not in use. Therefore, a special cutting forceps for tissue culture inoculation is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a special cutting forceps for tissue culture inoculation, comprising a first forceps body, a second forceps body and a connecting assembly, wherein the second forceps body is slidably connected to the upper surface of the first forceps body, a connecting block is fixedly connected to one end of the first forceps body, and an operating handle is fixedly connected to one end of the second forceps body, wherein the connecting block and the operating handle are fixedly connected by a spring.
[0007] An adjustment mechanism is provided at the other end of the surface of the first clamp body and the second clamp body. The adjustment mechanism includes a protective shell, which is fixedly connected to the side of the first clamp body and the second clamp body respectively. A blade is slidably connected inside the protective shell. A retraction component is provided on the side of the protective shell, and the retraction component is threadedly connected to the blade.
[0008] Furthermore, the retraction assembly includes a lead screw, one end of which is rotatably connected to the side of the first clamp body, and the other end of which is fixedly connected to a first bevel gear. A second bevel gear meshes with the outer surface of the first bevel gear, one end of which is rotatably connected to the side of the protective shell, and the other end of which is fixedly connected to a rotary knob.
[0009] Furthermore, the protective shell has slots on its side, and a movable block is fixedly connected to the surface of the blade, the movable block being threadedly connected to the lead screw.
[0010] Furthermore, the adjustment mechanisms are located on the surfaces of the first clamp and the second clamp, respectively, and the adjustment mechanisms are symmetrically distributed.
[0011] Furthermore, the connecting assembly includes a first connecting rod and a second connecting rod fixedly connected to the first clamp body. Both the first connecting rod and the second connecting rod are fixedly connected to the upper surface of the first clamp body. The upper surface of the second clamp body is provided with a first connecting groove and a second connecting groove. The first connecting groove and the second connecting groove are respectively slidably connected to the first connecting rod and the second connecting rod.
[0012] Furthermore, a fixing pad is fixed to the inner wall of the operating handle, and a soft pad is provided on the surface of the connecting block. The fixing pad is wavy in shape.
[0013] Furthermore, the inner top wall of the protective shell is provided with a sliding groove, and a sliding strip is fixedly connected to the upper surface of the blade, with the sliding strip and the sliding groove cooperating with each other.
[0014] Furthermore, a fixing frame is fixedly connected to the side of the protective shell, and the shrinking component is disposed inside the fixing frame.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] In this invention, the adjustable mechanism allows operators to easily adjust the blade extension length by rotating the knob according to the depth of the culture cup, eliminating the need for frequent tool changes or laborious angle adjustments. This significantly improves the adaptability and efficiency of tissue culture inoculation operations, making it particularly suitable for diverse operational scenarios involving culture cups of different sizes. Simultaneously, the sliding connection design between the protective shell and the blade allows the blade to be completely retracted into the protective shell when the pliers are idle by rotating the knob in the opposite direction. This prevents the blade from being exposed, effectively preventing it from becoming contaminated with impurities or damaged by impacts, extending the pliers' lifespan, and eliminating the safety hazards associated with exposed blades, thus ensuring operator safety. Attached Figure Description
[0017] Figure 1 This utility model provides a three-dimensional structural diagram of a special cutting forceps for tissue culture inoculation;
[0018] Figure 2 This invention provides a schematic diagram of the structure of the first clamp body in a tissue culture inoculation scissors.
[0019] Figure 3 This utility model provides a schematic diagram of the adjustment mechanism in a special scissors for tissue culture inoculation;
[0020] Figure 4 This invention provides a partial structural diagram of the second clamp body in a tissue culture inoculation scissors.
[0021] Figure 5 This utility model provides a schematic diagram of the operating handle in a special scissors for tissue culture inoculation;
[0022] Figure 6 This utility model provides a special cutting forceps for tissue culture inoculation. Figure 4 Enlarged diagram of point A.
[0023] Legend:
[0024] 1. First clamp body; 2. Second clamp body; 3. Connecting assembly; 31. First connecting rod; 32. Second connecting rod; 33. First connecting groove; 34. Second connecting groove; 4. Connecting block; 41. Soft pad; 5. Operating handle; 51. Fixing pad; 6. Spring; 7. Adjusting mechanism; 71. Protective shell; 73. Blade; 731. Moving block; 732. Slide bar; 74. Retraction assembly; 741. Lead screw; 742. First bevel gear; 743. Second bevel gear; 744. Rotary knob. Detailed Implementation
[0025] Please see Figure 1-6 This utility model provides a technical solution: a special cutting forceps for tissue culture inoculation, including a first forceps body 1, a second forceps body 2 and a connecting component 3.
[0026] The specific settings and functions of its adjustment mechanism 7 will be explained in detail below.
[0027] In this implementation scheme: the upper surface of the first clamp body 1 is slidably connected to the second clamp body 2, one end of the first clamp body 1 is fixedly connected to the connecting block 4, one end of the second clamp body 2 is fixedly connected to the operating handle 5, and the connecting block 4 and the operating handle 5 are fixedly connected by a spring 6.
[0028] An adjustment mechanism 7 is provided at the other end of the surface of the first clamp body 1 and the second clamp body 2. The adjustment mechanism 7 includes a protective shell 71, which is fixedly connected to the side of the first clamp body 1 and the second clamp body 2 respectively. A blade 73 is slidably connected inside the protective shell 71. A shrinking component 74 is provided on the side of the protective shell 71, and the shrinking component 74 is threadedly connected to the blade 73.
[0029] The effects achieved by the above components are as follows: the first clamp body 1 and the second clamp body 2 are slidably connected, and with the elastic action of the spring 6, the pliers open and close smoothly during use. The operator only needs to press the operating handle 5 lightly to drive the second clamp body 2 to slide relative to the first clamp body 1, realizing the opening and closing action of the pliers, which is labor-saving and convenient. At the same time, the restoring force provided by the spring 6 can make the pliers automatically return to the initial state after the operator releases the handle, which is convenient for the next operation. The protective shell 71 provides a protective space for the blade 73. When the pliers are not in use, the blade 73 can be stored in it, effectively preventing the blade 73 from being contaminated with dust and impurities, avoiding damage or deformation of the blade due to collision, and eliminating the safety hazards caused by exposed blades.
[0030] Specifically, the retraction assembly 74 includes a lead screw 741, one end of which is rotatably connected to the side of the first clamp body 1, and the other end of which is fixedly connected to a first bevel gear 742. A second bevel gear 743 meshes with the outer surface of the first bevel gear 742. One end of the second bevel gear 743 is rotatably connected to the side of the protective shell 71, and the other end of the second bevel gear 743 is fixedly connected to a rotary knob 744.
[0031] The effect achieved by the above components is as follows: by rotating the rotary knob 744, the second bevel gear 743 is driven to rotate. Since the first bevel gear 742 meshes with the second bevel gear 743, the first bevel gear 742 rotates, thereby driving the lead screw 741 to rotate. The rotation of the lead screw 741 converts the rotational motion into the linear motion of the blade 73, realizing the extension and retraction adjustment of the blade 73 within the protective shell 71. This gear transmission structure can achieve relatively precise adjustment and is easy to operate. Operators can easily and accurately control the extension length of the blade 73 according to actual needs.
[0032] Specifically, the protective shell 71 has a slot on its side, and a movable block 731 is fixedly connected to the surface of the blade 73. The movable block 731 is threadedly connected to the lead screw 741.
[0033] The effect achieved by the above components is as follows: the slot provides a guiding space for the movement of the moving block 731. When the lead screw 741 rotates, the moving block 731, which is threadedly connected to the lead screw 741, moves linearly in the slot, thereby driving the blade 73 to extend and retract stably within the protective shell 71. The cooperation between the slot and the moving block 731 ensures that the blade 73 will not shake or deviate during the movement, thus improving the stability of the blade 73 adjustment and the accuracy of the shearing.
[0034] Specifically, the adjustment mechanism 7 is located on the surface of the first clamp 1 and the second clamp 2 respectively, and the adjustment mechanism 7 is symmetrically distributed.
[0035] The effects achieved by the above components are as follows: the symmetrically distributed adjustment mechanism 7 makes the force on the shears more even during use, ensuring the overall balance and reliability of the shears whether adjusting the length of the blade 73 or performing a cutting operation; when adjusting the extension length of the blade 73, the adjustment mechanisms 7 on both sides adjust synchronously, ensuring that the two blades 73 always remain parallel, ensuring consistent cutting effect; during the cutting operation, the symmetrical structure can effectively disperse the cutting force, preventing the shears from deforming or being damaged due to uneven force, and extending the service life of the shears.
[0036] Specifically, the connecting component 3 includes a first connecting rod 31 and a second connecting rod 32 fixedly connected to the first clamp body 1. The first connecting rod 31 and the second connecting rod 32 are both fixedly connected to the upper surface of the first clamp body 1. The upper surface of the second clamp body 2 is provided with a first connecting groove 33 and a second connecting groove 34. The first connecting groove 33 and the second connecting groove 34 are slidably connected to the first connecting rod 31 and the second connecting rod 32 respectively.
[0037] The effect achieved by the above components is as follows: the connecting assembly 3 realizes a stable and flexible sliding connection between the first clamp body 1 and the second clamp body 2. The cooperation between the first connecting rod 31, the second connecting rod 32 and the first connecting groove 33, the second connecting groove 34 restricts the relative movement direction of the first clamp body 1 and the second clamp body 2, so that they can only slide in a predetermined direction, thus ensuring the stability of the shearing clamp during the opening and closing process.
[0038] Specifically, a fixing pad 51 is fixed to the inner wall of the operating handle 5, and a soft pad 41 is provided on the surface of the connecting block 4. The fixing pad 51 is wavy in shape.
[0039] The effect achieved by the above components is that the wave-shaped fixing pad 51 and the soft pad 41 can better conform to the contour of the operator's hand, increase the contact area between the handle and the hand, thereby increasing the friction, preventing the hand from slipping during use, and improving the safety of operation.
[0040] Specifically, the inner top wall of the protective shell 71 is provided with a sliding groove, and the upper surface of the blade 73 is fixedly connected with a sliding strip 732, which cooperates with the sliding groove.
[0041] The effects achieved by the above components are as follows: the cooperation between the slide groove and the slide bar 732 further guides and limits the movement of the blade 73. During the extension and retraction of the blade 73, the slide bar 732 slides in the slide groove to ensure that the blade 73 always moves in a straight line, preventing the blade 73 from tilting or swaying, and further improving the accuracy of blade 73 adjustment and cutting operation; and when the pliers are not in use, this cooperation structure can make the blade 73 more stably stored in the protective shell 71, enhancing the protection effect of the blade 73.
[0042] Specifically, a fixed frame is fixedly connected to the side of the protective shell 71, and the retractable component 74 is disposed inside the fixed frame.
[0043] The effect achieved by the above components is that the fixed frame provides a protective barrier for the shrink assembly 74, which can effectively prevent the shrink assembly 74 from being damaged by external forces such as collision and squeezing during the use, storage or transportation of the shears, thus ensuring the normal working performance of the shrink assembly 74.
[0044] Working principle: Before performing tissue culture inoculation, if it is necessary to adjust the extension length of the scissor blade 73 to adapt to the position of tissue in culture cups at different depths, the operator can turn the rotary knob 744. The rotary knob 744 drives the second bevel gear 743 to rotate, which in turn causes the first bevel gear 742 and the lead screw 741 to rotate. The moving block 731, which is threaded to the lead screw 741, moves in the slot, thereby driving the blade 73 to extend and retract within the protective shell 71 until the extension length of the blade 73 meets the operational requirements.
[0045] After adjustment, the operator holds the operating handle 5, using the wavy fixing pad 51 and the soft pad 41 to increase the stability and comfort of the grip. By pressing the operating handle 5, the second clamp 2 slides relative to the first clamp 1, the spring 6 is compressed, and the two blades 73 close to cut the tissue in the culture cup. After cutting, the operating handle 5 is released, the spring 6 returns to its elastic deformation, drives the second clamp 2 to reset, and the cutting forceps return to the initial state.
[0046] When the pliers are not in use, turn the rotary knob 744 in the opposite direction to store the blade 73 inside the protective housing 71. The protective housing 71, the sliding groove and the sliding bar 732 work together to effectively protect the blade 73 and prevent the blade from being damaged or cutting others.
Claims
1. A special cutting forceps for tissue culture inoculation, comprising a first forceps body (1), a second forceps body (2), and a connecting assembly (3), characterized in that: The upper surface of the first clamp body (1) is slidably connected to the second clamp body (2). One end of the first clamp body (1) is fixedly connected to the connecting block (4), and one end of the second clamp body (2) is fixedly connected to the operating handle (5). The connecting block (4) and the operating handle (5) are fixedly connected by a spring (6). An adjustment mechanism (7) is provided at the other end of the surface of the first clamp body (1) and the second clamp body (2). The adjustment mechanism (7) includes a protective shell (71). The protective shell (71) is fixedly connected to the side of the first clamp body (1) and the second clamp body (2). A blade (73) is slidably connected inside the protective shell (71). A shrinking component (74) is provided on the side of the protective shell (71). The shrinking component (74) is threadedly connected to the blade (73).
2. The tissue culture inoculation special-purpose tweezers according to claim 1, characterized in that: The retraction assembly (74) includes a lead screw (741), one end of which is rotatably connected to the side of the first clamp (1), and the other end of which is fixedly connected to a first bevel gear (742). A second bevel gear (743) meshes with the outer surface of the first bevel gear (742), one end of which is rotatably connected to the side of the protective shell (71), and the other end of which is fixedly connected to a rotary knob (744).
3. The tissue culture inoculation special-purpose tweezers according to claim 1, characterized in that: The protective shell (71) has a slot on its side, and a moving block (731) is fixedly connected to the surface of the blade (73). The moving block (731) is threadedly connected to the lead screw (741).
4. The tissue culture inoculation special-purpose tweezers according to claim 1, characterized in that: The adjustment mechanism (7) is located on the surface of the first clamp (1) and the second clamp (2), respectively, and the adjustment mechanism (7) is symmetrically distributed.
5. The tissue culture inoculation scissors according to claim 1, characterized in that: The connecting assembly (3) includes a first connecting rod (31) and a second connecting rod (32) fixedly connected to the first clamp body (1). The first connecting rod (31) and the second connecting rod (32) are both fixedly connected to the upper surface of the first clamp body (1). The upper surface of the second clamp body (2) is provided with a first connecting groove (33) and a second connecting groove (34). The first connecting groove (33) and the second connecting groove (34) are respectively slidably connected to the first connecting rod (31) and the second connecting rod (32).
6. The tissue culture inoculation special-purpose tweezers according to claim 1, characterized in that: The inner wall of the operating handle (5) is fixed with a fixing pad (51), and the surface of the connecting block (4) is provided with a soft pad (41). The fixing pad (51) is wavy in shape.
7. The tissue culture inoculation special-purpose tweezers according to claim 4, characterized in that: The inner top wall of the protective shell (71) is provided with a sliding groove, and a sliding strip (732) is fixedly connected to the upper surface of the blade (73), and the sliding strip (732) cooperates with the sliding groove.
8. The tissue culture inoculation special-purpose tweezers according to claim 1, characterized in that: The protective shell (71) is fixedly connected to a fixed frame on its side, and the shrinking component (74) is disposed inside the fixed frame.