Lithium iron phosphate sampling tool

Abstract

The utility model discloses a lithium iron phosphate sampling tool and relates to the technical field of lithium iron phosphate production equipment. The sampling device comprises an outer sampling cylinder and an inner sampling cylinder inserted in the outer sampling cylinder, an outer feeding groove is formed in the outer side wall of the sampling outer cylinder, a plurality of annular grooves which are arranged at equal intervals are formed in the inner side wall of the sampling outer cylinder, the annular grooves are communicated with one another through sliding insertion grooves, an inner feeding groove is formed in the outer wall of the sampling inner cylinder, and an elastic part is arranged on the outer wall of the top of the sampling inner cylinder; a shielding assembly is further arranged in the sampling inner cylinder and comprises a shielding circular plate and a rotating rod inserted in the center of the shielding circular plate, and a lifting rod is further inserted into the shielding circular plate in a sliding mode. By utilizing the sampling inner cylinder and the sampling outer cylinder which can be freely assembled and disassembled, not only can a sample material at a specified depth position be taken out from a lithium iron phosphate pile material, but also the sample material can be conveniently disassembled and cleaned, and the shielding component in the sampling inner cylinder can be used for storing the taken sample material to avoid interference caused by mutual material mixing.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium iron phosphate production equipment, and particularly relates to a lithium iron phosphate sampling tool. Background Art

[0002] Lithium iron phosphate is one of the most common materials in batteries, and it is mostly used as the raw material of the electrode plate. During the production and manufacturing process of lithium iron phosphate, its state needs to be controlled. One of the most conventional means of control is to take out some lithium iron phosphate materials from the production process line for performance testing. The above sampling work needs to be carried out by using a sampling tool to avoid the phenomenon of pollution caused by the staff's hands contacting the lithium iron phosphate materials on the production line.

[0003] A Chinese patent application (or patent) with the publication number of CN220893838U discloses a sampling device for the production of lithium iron phosphate materials, including a sampling outer tube and a sampling inner tube slidably connected in the sampling outer tube. One end of the sampling outer tube is fixedly connected with an operation frame, and a sliding support rod is slidably connected to the operation frame. The sliding support rod is fixedly connected with the sampling inner tube through an inner tube connecting rod. An outer tube feed port is arranged on one side of the sampling outer tube, and an inner tube feed port is arranged on the sampling inner tube. An inner tube discharge port is arranged on one side of the sampling outer tube, and an inner tube discharge port is arranged on the inner tube. By setting the coaxially adjustable inner tube and outer tube, when sampling, after inserting the sampling tube to the required position, pulling the inner tube to make the feed ports on the inner tube and the outer tube coincide can carry out sampling. After sampling, the inner tube is reset by a spring to close the feed port, ensuring that the materials in other positions will not enter the sampling tube through the feed port to contaminate the sample during the process of pulling out the sampling tube, and ensuring the sampling accuracy.

[0004] The above-mentioned sampling device for the production of lithium iron phosphate material is provided with a sampling inner tube, and a sampling outer tube is sleeved outside the sampling inner tube. The sampling inner tube and the outer tube are connected by a return spring. When in use, it is necessary to rotate the inner tube to make the feed port coincide to perform sampling, and then it will automatically close after reset. However, when multiple samplings are required, multiple sampling tools need to be carried, or the lithium iron phosphate that has completed sampling needs to be released before sampling again. Moreover, the structure of mutual sleeves and the fixed connection through the return spring make it impossible to disassemble the sampling inner tube and the outer tube. Lithium iron phosphate is powdery and has a certain adhesiveness, which is easy to adhere to the inner wall of the sampling inner tube and cannot be removed, affecting the secondary sampling of lithium iron phosphate; in addition, the sampling inner tube and the sampling outer tube are hollow tubular structures and their lengths are not adjustable. When sampling, it can only uniformly sample the stockpile where lithium iron phosphate is placed, and cannot take the material at a specified depth position from the stockpile. At the same time, when the sampling tool is pulled out after taking out the sample material, it will also cause the problem that the sample materials retained in the tool are mixed with each other. Therefore, we provide a lithium iron phosphate sampling tool to solve the problems that occur above. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a lithium iron phosphate sampling tool. By using the sampling inner cylinder and the sampling outer cylinder that can be freely assembled and disassembled, not only can the sample material at a specified depth position be taken out from the lithium iron phosphate stockpile, but also it is convenient to disassemble and clean it. At the same time, the shielding component in the sampling inner cylinder can preserve the taken sample materials to avoid mutual mixing and interference, solving the problems that occur in the existing sampling device for the production of lithium iron phosphate material.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0007] The present utility model is a lithium iron phosphate sampling tool, including a sampling outer cylinder and a sampling inner cylinder inserted therein, and a cone seat is threadedly connected to the bottom of the sampling outer cylinder; an outer feed groove is opened on the outer side wall of the sampling outer cylinder, and a plurality of annular grooves are arranged at equal intervals on the inner side wall of the sampling outer cylinder. The annular grooves are communicated with each other through sliding slots. An inner feed groove is opened on the outer wall of the sampling inner cylinder, and an elastic member is arranged on the outer wall of the top of the sampling inner cylinder. The sampling inner cylinder is connected to a hand-pulling ring through the elastic member. The elastic member includes a slider and a telescopic plate detachably and fixedly connected to its upper side wall;

[0008] A shielding component is further arranged inside the sampling inner cylinder. The shielding component includes a shielding circular plate and a rotating rod inserted through the center thereof. A lifting rod is slidably inserted beside the rotating rod on the shielding circular plate.

[0009] The present utility model is further configured such that there are two sliding slots in total, and the two sliding slots are symmetrically arranged on both sides of the outer feeding slot. There are also a plurality of the outer feeding slots, and the plurality of outer feeding slots are arranged at equal intervals up and down.

[0010] The present utility model is further configured such that the annular groove is arranged between the two outer feeding slots, and the annular groove is communicated with the sliding slot. Both the sliding slot and the annular groove are in sliding connection with the slider in the elastic member.

[0011] The present utility model is further configured such that there are also a plurality of inner feeding slots on the outer wall of the sampling inner cylinder, and the plurality of inner feeding slots are arranged at equal intervals up and down. The inner feeding slots and the outer feeding slots are arranged in one-to-one correspondence.

[0012] The present utility model is further configured such that there are two sets of elastic members, and the two sets of elastic members are arranged oppositely. The upper side wall of the sliding plate is connected to the connecting plate through a telescopic plate, and the two connecting plates are connected through a pulling ring.

[0013] The present utility model is further configured such that the outer peripheral side wall of the shielding circular plate in the shielding assembly is arranged in cooperation with the inner side wall of the sampling inner cylinder. A central hole is opened at the center of the shielding circular plate, and a side hole is opened beside the shielding circular plate.

[0014] The present utility model is further configured such that the shielding circular plate is rotatably connected to the rotating rod through the central hole, the shielding circular plate is connected to the lifting rod through the side hole, and the aperture of the side hole is larger than the rod diameter of the lifting rod.

[0015] The present utility model is further configured such that limit sleeves are detachably and fixedly connected to the outer walls of the rotating rod on the upper and lower sides of each shielding circular plate. The outer diameter of the limit sleeve is larger than the aperture of the side hole.

[0016] The present utility model has the following beneficial effects:

[0017] By providing a sampling outer cylinder and a sampling inner cylinder, in the present utility model, the sampling outer cylinder is sleeved on the outer side wall of the sampling inner cylinder, and the elastic member in the sampling inner cylinder can be adjusted according to the depth of insertion of the sampling inner cylinder into the sampling outer cylinder, so as to cooperate with it to pop out or retract. The sampling inner cylinder can rotate 360° in the sampling outer cylinder. When it rotates 180°, the outer feeding slots on the sampling outer cylinder and the inner feeding slots on the sampling inner cylinder are opposite to each other on both sides, that is, they are closed to each other and the sampling action cannot be performed. When rotating another 180°, the outer feeding slots and the inner feeding slots coincide, and the sampling action can be performed. Moreover, the sampling outer cylinder and the sampling inner cylinder are inserted into each other and rotatably connected at the same time, and can be freely disassembled and assembled.

[0018] The utility model sets a shielding component inside the sampling inner cylinder. The outer peripheral side wall of the shielding circular plate in the shielding component is matched with the inner wall of the sampling inner cylinder, and a shielding circular plate is arranged between every two inner feeding grooves. A side hole for the lifting rod to pass through is also opened on the shielding circular plate. When in use, by pulling the lifting rod upwards, the limit sleeve on the rod can impact the bottom side wall of the shielding circular plate. Since the aperture of the side hole of the shielding circular plate is larger than the rod diameter of the lifting rod, the shielding circular plate can be dragged to tilt at a certain angle. When it tilts, the lithium iron phosphate powder located above the shielding circular plate can enter the lower part. Then, when the lifting rod is released, under the gravity of the rod and the limit sleeve, the lifting rod naturally falls, and the shielding circular plate becomes horizontal, separating the sampling inner cylinder into multiple non - communicating chambers, so as to classify and store samples to avoid material mixing caused by mutual flow.

[0019] Of course, it is not necessary for any product implementing the utility model to achieve all the above - mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a lithium iron phosphate sampling tool.

[0022] Figure 2 It is a structural sectional view of a lithium iron phosphate sampling tool Figure 1 。

[0023] Figure 3 It is a structural sectional view of a lithium iron phosphate sampling tool Figure 2 。

[0024] Figure 4 It is a structural disassembled view of a lithium iron phosphate sampling tool.

[0025] Figure 5 It is Figure 4 The enlarged view of the structure at A in

[0026] Figure 6 It is the structural disassembled view of the shielding component.

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1 - Sampling outer cylinder, 101 - Outer feed slot, 102 - Slide slot, 103 - Annular groove, 2 - Cone seat, 3 - Sampling inner cylinder, 301 - Inner feed slot, 302 - Elastic member, 302a - Slide block, 302b - Telescopic plate, 302c - Connecting plate, 4 - Pulling ring, 5 - Shielding assembly, 501 - Shielding circular plate, 501a - Central hole, 501b - Side hole, 502 - Rotating rod, 502a - Bearing, 503 - Lifting rod, 503a - Limiting sleeve. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Specific embodiment 1

[0030] Please refer to Figures 1-5 , the present invention is a lithium iron phosphate sampling tool, including a sampling outer cylinder 1 and a sampling inner cylinder 3 inserted therein. The slide block 302a in the sampling inner cylinder 3 can rotate in the annular groove 103 and move up and down in the slide slot 102. Furthermore, the sampling inner cylinder 3 can rotate and slide up and down in the sampling outer cylinder 1. When the outer feed slot 101 coincides with the inner feed slot 301, sampling can be carried out, and when they do not coincide, the inner cavity of the sampling inner cylinder 3 can be sealed.

[0031] Specifically, an outer feed slot 101 is provided on the outer wall of the sampling outer cylinder 1, and annular grooves 103 are equally spaced on its inner wall. The annular grooves 103 are interconnected by slide slots 102. A cone seat 2 is threadedly connected to the bottom of the sampling outer cylinder 1, and a sampling inner cylinder 3 is also provided inside the sampling outer cylinder 1. An inner feed slot 301 is provided on the outer side wall of the sampling inner cylinder 3, and an elastic member 302 is installed on the outer wall at the top of the sampling inner cylinder 3. The sampling inner cylinder 3 is connected to the pulling ring 4 through the elastic member 302.

[0032] Furthermore, the elastic member 302 includes a slide block 302a and a telescopic plate 302b detachably and fixedly connected to its upper side wall. The slide block 302a is connected to the connecting plate 302c through the telescopic plate 302b, and a pulling ring 4 is welded on the connecting plate 302c. Among them, the slide block 302a is slidably connected to both the annular groove 103 and the slide slot 102. And there are two relatively arranged slide slots 102, and the outer feed slot 101 and the inner feed slot 301 are arranged in one-to-one correspondence, and the sliding groove 103 is arranged at the center between the two outer feed slots 101.

[0033] The operation process of this embodiment is as follows: Insert the sampling outer cylinder 1 into the lithium iron phosphate stockpile to be sampled. Then, hold the pull ring 4 by hand and lift the sampling inner cylinder 3 upward. After lifting to a predetermined height, apply a certain rotational force to the side. Then, the slider 302a on the sampling inner cylinder 3 can enter the annular groove 103. When rotated 180° at this time, the outer feed slot 101 and the inner feed slot 301 overlap with each other. At this time, the lithium iron phosphate can directly enter the inner feed slot 301 from the overlapping outer feed slot 101 and continuously flow into the sampling inner cylinder 3. That is, the sampling inner cylinder 3 completes the sampling of the lithium iron phosphate at the specified depth position. Moreover, the outer feed slot 101 below the overlapping slot can also be sampled, and the obtained sample material enters the sampling outer cylinder 1, achieving the effect of diversified sampling. After sampling is completed, lift and rotate the sampling inner cylinder 3 again to make all the outer feed slots 101 and the inner feed slots 301 misaligned with each other. Specific Embodiment 2

[0034] Please refer to Figure 6 , on the basis of Specific Embodiment 1, a shielding assembly 5 is further provided. The inner chamber of the sampling inner cylinder 3 can be separated by the shielding circular plate 501. By utilizing the cooperation of the lifting rod 503 and the limit sleeve 503a, the shielding circular plate 501 is flipped by a certain angle, and then the lithium iron phosphate powder on the shielding circular plate 501 is introduced into the lower chamber. When the shielding circular plate 501 is horizontal, the chamber where the lithium iron phosphate powder is located is closed to avoid mutual interference.

[0035] Specifically, the shielding assembly 5 includes a shielding circular plate 501 and a central hole 501a opened at its center for inserting the rotating rod 502. At the same time, side holes 501b are also opened on the shielding circular plate 501, and the shielding circular plate 501 is matched with the lifting rod 503 through the side holes 501b.

[0036] Furthermore, a plurality of shielding circular plates 501 are provided, and the shielding circular plates 501 are arranged between two inner feed slots 301. Both ends of the rotating rod 502 are rotatably connected to the inner wall of the sampling inner cylinder 3 through bearings 502a. The lifting rod 503 is detachably connected with limit sleeves 503a at the upper and lower positions of the shielding circular plate 501. When the shielding circular plate 501 is in a horizontal state, the limit sleeve 503a above it contacts the upper side wall of the shielding circular plate 501. When the shielding circular plate 501 is in an inclined state, the limit sleeve 503a below it contacts the bottom side wall of the shielding circular plate 501, and the aperture of the side hole 501b on the shielding circular plate 501 is larger than the rod diameter of the lifting rod 503.

[0037] The operation process of this embodiment is as follows: When the sampling outer cylinder 1 is inserted into the interior of the lithium iron phosphate stockpile for sampling, pulling the lifting rod 503 upward can cause the limiting sleeve 503a on the rod to strike the bottom side wall of the shielding circular plate 501, thereby dragging the shielding circular plate 501 to tilt at a certain angle with the rotating rod 502 as the axis. At this time, the lithium iron phosphate powder located above the shielding circular plate 501 can enter the lower chamber for storage. Then, release the lifting rod 503. At this time, under the gravitational action of the rod and the limiting sleeve 503a, the lifting rod 503 naturally drops, and the shielding circular plate 501 becomes horizontal, separating the sampling inner cylinder 3 into multiple non-connected chambers, so as to classify and store the samples to avoid material mixing caused by mutual circulation.

[0038] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A lithium iron phosphate sampling tool, comprising a sampling outer cylinder (1) and a sampling inner cylinder (3) inserted therein, and a taper seat (2) is also threadedly connected to the bottom of the sampling outer cylinder (1); characterized in that: An outer feed groove (101) is formed on the outer side wall of the sampling outer cylinder (1), and a plurality of annular grooves (103) arranged at equal intervals are formed on the inner side wall of the sampling outer cylinder (1). The annular grooves (103) are communicated with each other through sliding slots (102). An inner feed groove (301) is formed on the outer wall of the sampling inner cylinder (3), and an elastic member (302) is arranged on the outer wall at the top of the sampling inner cylinder (3). The sampling inner cylinder (3) is connected to a hand pull ring (4) through the elastic member (302). The elastic member (302) includes a slider (302a) and a telescopic plate (302b) detachably and fixedly connected to its upper side wall; A shielding assembly (5) is further arranged inside the sampling inner cylinder (3). The shielding assembly (5) includes a shielding circular plate (501) and a rotating rod (502) inserted through the center thereof. A lifting rod (503) is also slidably inserted on the shielding circular plate (501) beside the rotating rod (502).

2. The lithium iron phosphate sampling tool according to claim 1, characterized in that, There are two sliding slots (102) in total. The two sliding slots (102) are symmetrically arranged on both sides of the outer feed groove (101). There are also a plurality of outer feed grooves (101), and the plurality of outer feed grooves (101) are arranged at equal intervals up and down.

3. The lithium iron phosphate sampling tool according to claim 2, wherein, The annular groove (102) is arranged between two outer feed grooves (101), and the annular groove (102) is communicated with the sliding slot (101). Both the sliding slot (101) and the annular groove (102) are in sliding connection with the slider (302a) in the elastic member (302).

4. A lithium iron phosphate sampling tool according to claim 1, characterized in that, There are also a plurality of inner feed grooves (301) on the outer wall of the sampling inner cylinder (3), and the plurality of inner feed grooves (301) are arranged at equal intervals up and down. The inner feed grooves (301) are arranged in one-to-one correspondence with the outer feed grooves (101).

5. The lithium iron phosphate sampling tool according to claim 1, characterized in that, There are two groups of elastic members (302), and the two groups of elastic members (302) are arranged oppositely. The upper side wall of the slide plate (302a) is connected to a connecting plate (302c) through a telescopic plate (302b). The two connecting plates (302c) are connected through a hand pull ring (4).

6. The lithium iron phosphate sampling tool according to claim 1, characterized in that, The outer peripheral side wall of the shielding circular plate (501) in the shielding assembly (5) is arranged in cooperation with the inner side wall of the sampling inner cylinder (3). A central hole (501a) is formed at the center of the shielding circular plate (501), and a side hole (501b) is formed beside the shielding circular plate (501).

7. The lithium iron phosphate sampling tool according to claim 6, characterized in that, The shielding circular plate (501) is rotatably connected to the rotating rod (502) through the central hole (501a). The shielding circular plate (501) is connected to the lifting rod (503) through the side hole (501b), and the aperture of the side hole (501b) is larger than the rod diameter of the lifting rod (503).

8. The lithium iron phosphate sampling tool according to claim 7, characterized in that, Limit sleeves (503a) are detachably and fixedly connected to the outer walls of the rotating rod (502) on the upper and lower sides of each shielding circular plate (501). The outer diameter of the limit sleeve (503a) is larger than the aperture of the side hole (501b).

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