Handheld springback needle device for punching

Abstract

The utility model discloses a handheld springback needle device for punching. The handheld springback needle device comprises a push disc, a fixed disc and a needle disc which are sequentially arranged from top to bottom. Wherein a guide hole is formed in the middle of the fixed disc, a push rod used for fixedly connecting the push disc and the needle disc is installed in the guide hole, the fixed disc and the needle disc are connected through two reset springs which are arranged in a bilateral symmetry mode, and a plurality of punching needle heads which are arranged at equal intervals are arranged at the bottom of the needle disc. Meanwhile, a protective shell is arranged on the peripheral side of the lower portion of the fixing disc, and the reset spring, the needle disc and the punching needle head are arranged in the protective shell. The punching device has the advantages that the problems of complicated operation, high cost, long consumed time, poor punching effect and the like in the prior art are solved, efficient and convenient punching is realized, and the punching device is convenient to operate, low in cost, high in practicability and wide in applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory instruments and devices, in particular to a handheld rebound needle device for punching holes. Background Art

[0002] The punching device is one of the commonly used equipment in the laboratory, mainly used for the pre-treatment of laboratory samples. In many laboratory analysis and detection work, it is necessary to punch the sample for sampling, measurement, analysis and other operations. The punching device has high application value in cell culture plates, microporous filter membranes, organ slices, molecular experiments, tissue processing, drug delivery systems, PCR reaction plates, biomaterials, sample collection, etc. In cell culture, punching is usually to make holes in frozen stem cell suspensions or cell sheets to facilitate the addition of culture medium or other reagents, or observation under a fluorescence microscope; in filtration and separation experiments, punching is to make holes of specific sizes on microporous filter membranes to control the permeability of substances; in pathology or histology research, punching may be to make holes in tissue slices to facilitate sampling or specific tissue processing; in molecular biology experiments, such as PCR (polymerase chain reaction), Southern blotting, Western In blotting, needles can be used to punch holes in membranes or plates to facilitate sample loading and migration; in pathology or histology research, needles can be used to punch holes to obtain tissue samples and prepare tissue sections or tissue cores; in drug delivery or pharmacology experiments, needles can be used to punch holes in biomaterials or devices to facilitate drug loading and release; in polymerase chain reaction (PCR), punching is to add DNA templates, primers, and reaction mixtures to each well on the PCR reaction plate; in biomaterial research, punching may be used to create small holes for samples to facilitate injection into cells or other biocompatibility tests; in clinical trials or rapid on-site testing, needles can be used to punch holes to collect blood, urine, or other body fluid samples. The design and manufacture of punching devices have been continuously improved and innovated, and their applications are becoming more and more extensive, providing convenient and efficient support for scientific research.

[0003] At present, the traditional commonly used drilling methods include drilling with a drill, cutting with a blade, and laser drilling. These methods produce uneven holes, take a long time, are inefficient, are costly, are prone to errors, and have a certain impact on the drilling effect. Summary of the invention

[0004] The purpose of the utility model is to provide a handheld rebound needle device for punching, which solves the problems of complicated operation, high cost, long time consumption and poor punching effect mentioned in the above background technology, and realizes efficient and convenient punching, and has easy operation, low cost, high practicality and wide applicability.

[0005] The technical solution of the utility model is: a handheld rebound needle device for punching, comprising a push plate, a fixed plate and a needle plate arranged in sequence from top to bottom; wherein a guide hole is arranged in the middle of the fixed plate, and a push rod for fixing the push plate and the needle plate is installed in the guide hole, the fixed plate and the needle plate are connected by two return springs symmetrically arranged on the left and right, a plurality of punching needles arranged at equal intervals are arranged at the bottom of the needle plate, and a protective shell is arranged on the lower peripheral side of the fixed plate, and the return spring, the needle plate and the punching needle are arranged inside the protective shell.

[0006] As a preferred technical solution, the bottom opening of the protective shell is sealed by a silicone plate, and a plurality of cleaning holes corresponding to the punching needles are arranged on the silicone plate.

[0007] As a preferred technical solution, a detachably connected protective cover is provided at the bottom of the protective shell.

[0008] As a preferred technical solution, the needle disk is a disc made of PC or PP material, with a diameter of 2 to 15 cm and a thickness of 0.1 to 0.5 cm.

[0009] As a preferred technical solution, the return spring is a stainless steel spring with a length of 1 to 3 cm.

[0010] As a preferred technical solution, the punching needle is a stainless steel needle and is detachably connected to the needle disk, and the length of the punching needle is 2~5cm and the diameter is 0.18~0.88mm.

[0011] As a preferred technical solution, the diameter of the silica gel plate is 3-16 cm and the thickness is 0.1-0.3 cm.

[0012] As a preferred technical solution, the push rod is a cylindrical rod made of stainless steel, PC, PP, PE, or PEEK.

[0013] The advantages of the utility model are:

[0014] 1. The handheld rebound needle device for punching of the utility model solves the problems of complicated operation, high cost, long time consumption and poor punching effect mentioned in the above background technology, realizes efficient and convenient punching, and is easy to operate, low cost, high practicality and wide applicability;

[0015] 2. The handheld rebound needle device for punching of the utility model can effectively control the depth and speed of the punching needle through the cooperation of the push rod and two return springs. It not only has high punching accuracy, but also effectively avoids excessive cutting or damage, thereby improving the integrity of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is the structural front view of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the state of the utility model to be punched;

[0021] Figure 4 It is a schematic diagram of the punching state of the utility model;

[0022] Among them: 1 push plate, 2 fixed plate, 3 needle plate, 4 guide hole, 5 push rod, 6 return spring, 7 punching needle, 8 protective shell, 9 silicone plate, 10 protective cover. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] First, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail using structural schematic diagrams, etc. When describing the embodiments of the present invention, for the sake of convenience, the schematic diagram of the handheld rebound needle device for punching holes will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space of length, width and depth should be included.

[0026] Example: Refer to Figures 1 to 2As shown, a handheld rebound needle device for punching comprises a push plate 1, a fixed plate 2 and a needle plate 3 which are arranged in sequence from top to bottom; a guide hole 4 is arranged in the middle of the fixed plate 2, and a push rod 5 for fixing the push plate 1 and the needle plate 3 is installed in the guide hole 4, the fixed plate 2 and the needle plate 3 are connected by two return springs 6 which are symmetrically arranged on the left and right, a plurality of punching needles 7 which are arranged at equal intervals are arranged at the bottom of the needle plate 3, a protective shell 8 is arranged on the lower peripheral side of the fixed plate 2, and the return spring 6, the needle plate 3 and the punching needle 7 are arranged inside the protective shell 8, and a detachably connected protective cover 10 is arranged at the bottom of the protective shell 8.

[0027] In this embodiment, the bottom opening of the protective shell 8 is sealed by a silicone plate 9, and a plurality of cleaning holes (not shown in the figure) corresponding to the punching needles 7 are arranged on the silicone plate 9. The sealing effect of the silicone plate 9 can effectively reduce the risk of cross contamination, and the residual sample on the punching needle 7 can be removed through the cleaning holes.

[0028] In this embodiment, the needle disk 3 is a disc made of PC material with a diameter of 4 cm and a thickness of 0.1 cm. The reset spring 6 is a stainless steel spring with a length of 1 cm. The punching needle 7 is a stainless steel needle and is detachably connected to the needle disk 3, which is convenient for disassembly and cleaning, reducing the loss of experimental materials. The length of the punching needle 7 is 2 cm and the diameter is 0.18 mm. The diameter of the silicone plate 9 is 5 cm and the thickness is 0.1 cm. The push rod 5 is a cylindrical rod made of PEEK material.

[0029] The specific working process of this embodiment is as follows: remove the protective cover 10 (such as Figure 3 As shown in the figure, place the needle disk 3 just above the desired punching position, hold the protective shell 8 with one hand, and press the push rod 5 downward with the other hand. The needle disk 3 moves downward under the tension of the return spring 6, and the punching needle 7 passes through the silicone plate 9 downward to punch a hole (as shown in the figure). Figure 4 As shown), after slowly releasing the push rod 5, the needle disc 3 returns to its original position upwards through the stretching action of the return spring 6, and the punching is completed in one time. The whole device is simple to operate, easy to use, and widely used.

[0030] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A hand-held rebound needle device for punching holes, characterized in that: It comprises a push plate, a fixed plate and a needle plate which are arranged in sequence from top to bottom; wherein a guide hole is arranged in the middle of the fixed plate, and a push rod for fixing the push plate and the needle plate is installed in the guide hole, the fixed plate and the needle plate are connected by two return springs which are arranged symmetrically on the left and right, a plurality of punching needles arranged at equal intervals are arranged at the bottom of the needle plate, and a protective shell is arranged on the lower peripheral side of the fixed plate, and the return spring, the needle plate and the punching needle are arranged inside the protective shell; The bottom opening of the protective shell is sealed by a silicone plate, and a plurality of cleaning holes corresponding to the punching needles are arranged on the silicone plate.

2. The handheld rebound needle device for punching according to claim 1, characterized in that: A detachably connected protective cover is arranged at the bottom of the protective shell.

3. The handheld rebound needle device for punching according to claim 1, characterized in that: The needle disk is a disk made of PC or PP material, with a diameter of 2 to 15 cm and a thickness of 0.1 to 0.5 cm.

4. The handheld rebound needle device for punching according to claim 1, characterized in that: The return spring is a stainless steel spring with a length of 1 to 3 cm.

5. The handheld rebound needle device for punching according to claim 1, characterized in that: The punching needle is a stainless steel needle and is detachably connected to the needle disk. The length of the punching needle is 2 to 5 cm and the diameter is 0.18 to 0.88 mm.

6. The handheld rebound needle device for punching according to claim 1, characterized in that: The silica gel plate has a diameter of 3 to 16 cm and a thickness of 0.1 to 0.3 cm.

7. The handheld rebound needle device for punching according to claim 1, characterized in that: The push rod is a cylindrical rod made of stainless steel, PC, PP, PE, or PEEK.

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