Sampling needle base convenient to take
By designing a sampling needle base including a guide frame, top seat, spring and limiting mechanism, the knob drives the screw and square nut to slide, and drives the movable rod and the shielding rod to slide, the problem of the sampling needle falling on the base is solved, and safety and convenience are improved.
Patent Information
- Application Number
- CN202421994540.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing sampling needle base is not stable due to the low stability of the slot design, which causes the sampling needle to fall off the slot and cause damage.
A sampling needle base is designed including a support base, a guide frame, a top base, a spring, a connecting rod and a limiting mechanism. By rotating the knob, the screw rod and the square nut slide, which drives the movable rod and the shielding rod to slide. Multiple groups of shielding rods come into contact with the needle handle of the sampling needle, limiting its position and avoiding falling.
It effectively avoids the phenomenon of falling and damage on the base, improves the safety of the sample needle, and changes the height of the base to completely or partially leak out, making it easy to pick up and improves convenience.
Smart Images
Figure CN222984420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sampling needle bases, and particularly relates to a sampling needle base convenient for taking. Background Technique
[0002] In the agricultural field, sampling needles are mainly used to extract samples from soil, crops, plant tissues, and agricultural products for nutritional analysis, pest and disease detection, quality assessment, and other types of agricultural inspections. The sampling needle base not only helps improve the management and maintenance efficiency of sampling needles but also ensures the safe, clean, and efficient use of sampling needles.
[0003] In order to facilitate taking, the existing sampling needles are designed with slots to store the sampling needles on the base. However, the stability of the sampling needles on the slots is not high, and the sampling needles are prone to falling off the slots, resulting in damage to the sampling needles. Content of the Utility Model
[0004] The purpose of the utility model is to provide a sampling needle base convenient for taking, so as to solve the problem that the existing sampling needles are designed with slots to store the sampling needles on the base for the convenience of taking, but the stability of the sampling needles on the slots is not high, and the sampling needles are prone to falling off the slots, resulting in damage to the sampling needles as mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution, a sampling needle base convenient for taking: including a support base, a guiding frame is fixedly and slidably connected to the surface of the support base, a top base is fixedly connected to the surface of the guiding frame, a spring is fixedly connected to the surface of the guiding frame, a connecting rod is fixedly connected to the surface of the spring, a limiting rod is fixedly connected to the surface of the connecting rod, limiting holes are opened on both sides of the support base, a limiting mechanism is arranged on the surface of the top base, the limiting mechanism includes a guiding rod, the guiding rod is fixedly connected to the surface of the top base, a guiding block is slidably connected to the surface of the guiding rod, a lead screw is rotatably connected to the surface of the top base, a square nut is threadedly connected to the surface of the lead screw, a movable rod is fixedly connected to the surface of the square nut, a shielding rod is fixedly connected to the surface of the movable rod, and a knob is fixedly connected to the surface of the lead screw.
[0006] Preferably, a plug-in slot is opened on the surface of the support base, a plug-in hole is opened on the surface of the top base, and a needle handle groove is opened on the plug-in hole of the top base.
[0007] Preferably, multiple groups of the plug-in slots of the support base and the plug-in holes of the top base are provided and arranged in a rectangular array. A groove is opened at the bottom of the top base, and the top base slides on the surface of the support base through the guiding frame.
[0008] Preferably, guiding holes are formed on the surface of the guiding frame, the limiting rod slides on the guiding holes of the guiding frame, the elastic force of the spring acts on the limiting rod through the connecting rod, there are four groups of limiting holes, and the limiting rod is inserted into the limiting holes.
[0009] Preferably, the guiding block is fixedly connected to the surface of the movable rod, the movable rod slides on the surface of the top seat through the guiding block, and the shielding rod slides on the surface of the top seat following the movable rod.
[0010] Preferably, there are multiple groups of the shielding rods, and the shielding rods are linearly and evenly arranged on the surface of the movable rod, and the shielding rods can slide above the insertion holes of the top seat.
[0011] Preferably, the lead screw is rotated through a knob, the lead screw drives the square nut to slide on the surface of the top seat through rotation, and the movable rod and the shielding rod slide on the surface of the top seat through the square nut.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. For this sampling needle base, by rotating the knob to drive the lead screw to rotate on the top seat, the lead screw drives the square nut to slide on the surface of the top seat through rotation, the square nut drives the movable rod to slide on the surface of the support seat, the guiding rod and the guiding block ensure the sliding stability of the movable rod on the top seat, the movable rod drives the shielding rod to slide on the surface of the top seat during the sliding process, multiple groups of shielding rods slide to contact and connect with the shank of the sampling needle, the shielding rod limits the position of the sampling needle on the base, avoids the sampling needle from falling and being damaged on the base, and improves the safety of the sampling needle.
[0014] 2. When taking the sampling needle from this sampling needle base, pull the connecting rod to make the limiting rod slide on the guiding holes of the guiding frame, so that the limiting rod slides out of the limiting hole. At this time, the top seat slides downward through the guiding frame, changing the height of the top seat on the support seat, thereby changing the overall height of the base, and making the limiting rod align with another group of limiting holes. Under the elastic force of the spring, the limiting rod is inserted into another group of limiting holes. The limiting hole limits the position of the top seat after the height change through the limiting rod. At this time, due to the reduction of the height of the base, part of the shank of the sampling needle will be exposed on the base, thus facilitating the staff to take the sampling needle on the base and improving the convenience of taking the sampling needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a front view three-dimensional schematic diagram of the structure of the present utility model;
[0016] Figure 2 is a front view partial cross-sectional three-dimensional schematic diagram of the structure of the present utility model;
[0017] Figure 3 It is a schematic top view of the structure of the present utility model;
[0018] Figure 4 It is a schematic front, upward and three-dimensional view of the structure of the present utility model;
[0019] Figure 5 For the present utility model Figure 1 The enlarged schematic view of the structure at position A in it.
[0020] In the figure: 1. Support base; 11. Guide frame; 12. Top seat; 13. Spring; 14. Connecting rod; 15. Limiting rod; 16. Limiting hole; 2. Guide rod; 21. Guide block; 22. Lead screw; 23. Square nut; 24. Movable rod; 25. Shielding rod; 26. Knob. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model:
[0023] A sampling needle base that is convenient to take: It includes a support base 1. A guide frame 11 is fixedly and slidably connected to the surface of the support base 1. A top seat 12 is fixedly connected to the surface of the guide frame 11. A spring 13 is fixedly connected to the surface of the guide frame 11. A connecting rod 14 is fixedly connected to the surface of the spring 13. A limiting rod 15 is fixedly connected to the surface of the connecting rod 14. Limiting holes 16 are opened on both sides of the support base 1. A limiting mechanism is arranged on the surface of the top seat 12. The limiting mechanism includes a guide rod 2. The guide rod 2 is fixedly connected to the surface of the top seat 12. A guide block 21 is slidably connected to the surface of the guide rod 2. A lead screw 22 is rotatably connected to the surface of the top seat 12. A square nut 23 is threadedly connected to the surface of the lead screw 22. A movable rod 24 is fixedly connected to the surface of the square nut 23. A shielding rod 25 is fixedly connected to the surface of the movable rod 24. A knob 26 is fixedly connected to the surface of the lead screw 22. Its limiting mechanism can limit the position of the sampling needle on the base, avoid the phenomenon that the sampling needle falls and is damaged during transportation, improve the safety of the sampling needle. At the same time, the sampling needle is composed of a needle head and a needle handle. By changing the height of the top seat 12 on the support base 1, the sampling needle handle inserted into the base can be completely exposed on the base, so as to facilitate the user to take the sampling needle on the base and improve the convenience of taking the sampling needle.
[0024] Furthermore, a plug-in groove is provided on the surface of the support base 1, a plug-in hole is provided on the surface of the top base 12, and a needle handle groove is provided on the plug-in hole of the top base 12. The sampling needle passes through the plug-in hole of the top base 12 and is inserted into the plug-in groove of the support base 1, thereby completing the limitation of the sampling needle, and the needle handle of the sampling needle is clamped in the needle handle groove of the top base 12.
[0025] Furthermore, multiple groups of plug-in grooves of the support base 1 and plug-in holes of the top base 12 are provided and arranged in a rectangular shape. A groove is provided at the bottom of the top base 12. The top base 12 slides on the surface of the support base 1 through the guiding frame 11. The height of the entire base is changed by the sliding of the top base 12, so that the needle handle of the sampling needle is separated from the needle handle groove of the top base 12, facilitating the user to take out the sampling needle from one end of the sampling needle handle.
[0026] Furthermore, guiding holes are provided on the surface of the guiding frame 11. The limiting rod 15 slides on the guiding holes of the guiding frame 11. The elastic force of the spring 13 acts on the limiting rod 15 through the connecting rod 14. Four groups of limiting holes 16 are provided. The limiting rod 15 is inserted into the limiting holes 16. Two groups of guiding holes of the limiting holes 16 are provided, and each group has two. The two groups of limiting holes 16 are parallel to each other. The limiting holes 16 limit the height of the guiding frame 11 on the support base 1 through the limiting rod 15, and further limit the height of the top base 12 on the support base 1.
[0027] Furthermore, the guiding block 21 is fixedly connected to the surface of the movable rod 24. The movable rod 24 slides on the surface of the top base 12 through the guiding block 21. The shielding rod 25 slides on the surface of the top base 12 following the movable rod 24. The guiding rod 2 and the guiding block 21 ensure the stability of the sliding of the movable rod 24 and the shielding rod 25 on the top base 12.
[0028] Furthermore, multiple groups of shielding rods 25 are provided, and the shielding rods 25 are linearly and evenly arranged on the surface of the movable rod 24. The shielding rods 25 can slide above the plug-in holes of the top base 12 and can be in contact connection with the needle handles of multiple groups of sampling needles, thereby limiting the positions of the sampling needles and preventing the sampling needles from falling off the base.
[0029] Furthermore, the lead screw 22 is rotated through the knob 26. The lead screw 22 drives the square nut 23 to slide on the surface of the top base 12 through rotation. The movable rod 24 and the shielding rod 25 slide on the surface of the top base 12 through the square nut 23. The position relationship between the shielding rod 25 and the sampling needle is changed by the movement of the shielding rod 25. When the shielding rod 25 is misaligned with the sampling needle, it is convenient to take out the sampling needle from the top base 12 at this time.
[0030] Working principle: Rotating the knob 26 drives the lead screw 22 to rotate on the top seat 12. The lead screw 22 drives the square nut 23 to slide on the surface of the top seat 12 through rotation. The square nut 23 drives the movable rod 24 to slide on the surface of the support seat 1. The guide rod 2 and the guide block 21 ensure the stability of the sliding of the movable rod 24 on the top seat 12. During the sliding process of the movable rod 24, the shielding rod 25 is driven to slide on the surface of the top seat 12. Multiple groups of shielding rods 25 slide to contact and connect with the shank of the sampling needle. The shielding rod 25 restricts the position of the sampling needle on the base, prevents the sampling needle from falling and being damaged on the base, and improves the safety of the sampling needle.
[0031] When it is necessary to take the sampling needle on the base, pull the connecting rod 14 to make the limiting rod 15 slide on the guide hole of the guide frame 11, so that the limiting rod 15 slides out of the limiting hole 16. At this time, the top seat 12 slides downward through the guide frame 11, changing the height of the top seat 12 on the support seat 1, thereby changing the overall height of the base, and making the limiting rod 15 align with another group of limiting holes 16. Under the elastic force of the spring 13, the limiting rod 15 is inserted into another group of limiting holes 16. The limiting hole 16 restricts the position of the top seat 12 after the height change through the limiting rod 15. At this time, due to the reduction of the height of the base, part of the shank of the sampling needle will be exposed on the base, which is convenient for the staff to take the sampling needle on the base and improves the convenience of taking the sampling needle.
[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A sampling needle base that is easy to take, characterized by: The invention comprises a support seat (1), a guide frame (11) is fixedly and slidably connected to the surface of the support seat (1), a top seat (12) is fixedly connected to the surface of the guide frame (11), a spring (13) is fixedly connected to the surface of the guide frame (11), a connecting rod (14) is fixedly connected to the surface of the spring (13), a limiting rod (15) is fixedly connected to the surface of the connecting rod (14), limiting holes (16) are provided on both sides of the support seat (1), a limiting mechanism is provided on the surface of the top seat (12), and the limiting mechanism The mechanism comprises a guide rod (2), the guide rod (2) being fixedly connected to the surface of a top seat (12), a guide block (21) being slidably connected to the surface of the guide rod (2), a screw rod (22) being rotatably connected to the surface of the top seat (12), a square nut (23) being threadedly connected to the surface of the screw rod (22), a movable rod (24) being fixedly connected to the surface of the square nut (23), a shielding rod (25) being fixedly connected to the surface of the movable rod (24), and a knob (26) being fixedly connected to the surface of the screw rod (22).
2. The sampling needle base that is easy to take according to claim 1 is characterized in that: The surface of the support seat (1) is provided with a plug-in groove, the surface of the top seat (12) is provided with a plug-in hole, and the plug-in hole of the top seat (12) is provided with a needle handle groove.
3. The sampling needle base that is easy to take according to claim 2 is characterized in that: The support seat (1) has multiple groups of insertion slots and the top seat (12) has multiple insertion holes arranged in a rectangular shape. A groove is provided at the bottom of the top seat (12). The top seat (12) slides on the surface of the support seat (1) through a guide frame (11).
4. The sampling needle base that is easy to take according to claim 3 is characterized in that: A guide hole is provided on the surface of the guide frame (11), the limit rod (15) slides on the guide hole of the guide frame (11), the elastic force of the spring (13) acts on the limit rod (15) through the connecting rod (14), four groups of limit holes (16) are provided, and the limit rod (15) is plugged into the limit holes (16).
5. The sampling needle base that is easy to take according to claim 1 is characterized in that: The guide block (21) is fixedly connected to the surface of the movable rod (24); the movable rod (24) slides on the surface of the top seat (12) via the guide block (21); and the shielding rod (25) slides on the surface of the top seat (12) following the movable rod (24).
6. The sampling needle base that is easy to take according to claim 5, characterized in that: The shielding rods (25) are provided in multiple groups, and the shielding rods (25) are linearly and evenly arranged on the surface of the movable rod (24), and the shielding rods (25) can slide to the top of the plug-in hole of the top seat (12).
7. The sampling needle base that is easy to take according to claim 6, characterized in that: The screw rod (22) is rotated by means of a knob (26), and the screw rod (22) drives the square nut (23) to slide on the surface of the top seat (12) by means of rotation, and the movable rod (24) and the shielding rod (25) slide on the surface of the top seat (12) via the square nut (23).