Material taking device for liquid nitrogen tank

Abstract

The utility model discloses a material taking device for a liquid nitrogen tank, and mainly relates to the field of liquid nitrogen tank sampling. Comprising a material taking frame used in cooperation with a liquid nitrogen tank, a sample frame is hung in the liquid nitrogen tank, a hook is arranged at the top of the sample frame, the material taking frame comprises supporting frames symmetrically arranged on the two sides of the liquid nitrogen tank, a top plate is arranged between the tops of the two supporting frames, and a transverse rod is slidably connected to the supporting frames in the vertical direction; the supporting frame is provided with a power rod for driving the transverse rods to slide in the vertical direction, a lifting rod is movably connected between the two transverse rods, the hook is hung on the lifting rod, and a crawling ladder is arranged at the position, below the transverse rods, of the supporting frame. The liquid nitrogen container has the advantages that the technical problems that when an existing liquid nitrogen container takes materials, the working intensity is large, and potential safety hazards exist can be solved, the working intensity of operators is reduced, the sample holder cannot be higher than the operators during material taking, and the safety risk in the material taking process is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of liquid nitrogen material taking, and specifically relates to a material taking device for a liquid nitrogen tank. BACKGROUND

[0002] The sample holder placed in the liquid nitrogen tank is hung on the top of the liquid nitrogen tank through the hook, and when the sample holder is taken, the operator needs to hold the hook and pull up the sample holder, and the sample holder can be completely taken out only after the liquid nitrogen on the sample holder is drained, so the taking process is relatively slow, the operator needs to continuously pull the sample holder, the working strength is large, and after the liquid nitrogen is drained, the sample holder needs to be pulled to the top of the liquid nitrogen tank to be completely taken out, so the sample holder needs to be pulled to a high height, and therefore there is a risk that the sample holder or a small amount of residual liquid nitrogen touches the operator during the pulling and taking process, so that there is a certain safety hazard in the material taking process of the liquid nitrogen tank. SUMMARY

[0003] The utility model discloses a kind of material taking devices for liquid nitrogen tank, it can solve the technical problems that the working strength is large and there is safety hazard when the liquid nitrogen tank is taken, so that the taking operation of liquid nitrogen tank is more convenient, reduce the working strength of operator, sample holder does not overtop operator when taking, greatly reduce the security risk of taking process.

[0004] The utility model discloses a kind of material taking devices for liquid nitrogen tank, it can solve the technical problems that the working strength is large and there is safety hazard when the liquid nitrogen tank is taken, so that the taking operation of liquid nitrogen tank is more convenient, reduce the working strength of operator, sample holder does not overtop operator when taking, greatly reduce the security risk of taking process.

[0005] A kind of material taking device for liquid nitrogen tank, including the taking frame of cooperation liquid nitrogen tank use, the sample holder is hung in the liquid nitrogen tank, the top of the sample holder is equipped with hook, the taking frame includes the support frame of symmetrical setting in the both sides of liquid nitrogen tank, top between the two support frames is equipped with top plate, the support frame is vertically slidably connected with crossbar, the support frame is equipped with the power rod of driving crossbar vertically sliding, the pull rod is movably connected between the two crossbars, the hook is hung on pull rod, the position of the support frame below crossbar is equipped with ladder.

[0006] Further, the two sides of the pull rod are symmetrically provided with clamping columns, and the top of the two crossbars is provided with a clamping groove matched with the clamping column.

[0007] Further, the clamping groove includes a vertical groove and an inclined groove, and the inclined groove is in communication with the bottom end of the vertical groove.

[0008] Further, the power rod is rotatably connected with the support frame, the power rod penetrates the crossbar and is threadedly connected with the crossbar, the two sides of the support frame are symmetrically provided with sliding grooves, and the two sides of the crossbar are symmetrically provided with sliding blocks slidably connected with the sliding grooves.

[0009] Further, a plurality of connecting rods are arranged between the bottoms of the support frames on both sides, and the connecting rods are arc-shaped.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] 1. The utility model discloses a material taking frame is set to the outside of liquid nitrogen tank, and the material taking frame includes the support frame who sets at both sides of liquid nitrogen tank and the top plate who is located between the top of two support frames, the horizontal rod is slidably connected on the support frame along the vertical direction, and the pull rod is movably connected between the two horizontal rods, when taking the sample, the material taking frame is moved to the top of liquid nitrogen tank, then the sample rack is pulled up, the hook on the top of the sample rack is hung on the pull rod, after that, the horizontal rod is driven to slide up slowly by the power rod, and the sample rack can be smoothly sampled, the operator does not need to hold the sample rack all the time during the sampling process, the sampling workload is greatly reduced, and the convenience of sampling operation of liquid nitrogen tank is improved.

[0012] 2. The climbing ladder is arranged on the support frame and located below the horizontal rod, during the sampling process, the operator can climb to the high place along the climbing ladder and operate the power rod, so that the sample rack is gradually lifted, and the height of the sample rack during the lifting process is not higher than the operator, therefore, the sample rack or the residual liquid nitrogen thereon can not touch the operator, the possible safety hazard is reduced, and the safety of liquid nitrogen tank sampling is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] ATTACHED Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0014] ATTACHED Figure 2 It is the right view of the utility model.

[0015] ATTACHED Figure 3 It is the attached Figure 2 It is the sectional view of the utility model in A-A direction.

[0016] ATTACHED Figure 4 It is the attached Figure 2 It is the sectional view of the utility model in B-B direction.

[0017] ATTACHED Figure 5 It is the attached Figure 4 It is the sectional view of the utility model in C-C direction.

[0018] Reference signs shown in the drawings:

[0019] 1, liquid nitrogen tank;2, sample rack;3, hook;4, support frame;5, top plate;6, horizontal rod;7, power rod;8, pull rod;9, climbing ladder;10, clamping column;11, vertical groove;12, inclined groove;13, sliding groove;14, sliding block;19, connecting rod. DETAILED DESCRIPTION

[0020] The utility model will be further described below in connection with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0021] With reference to Figure 1 And Figure 2The utility model relates to a kind of material taking device for liquid nitrogen tank 1, main body structure includes the material taking frame of cooperation liquid nitrogen tank 1 use, material taking frame is located above liquid nitrogen tank 1, the top of liquid nitrogen tank 1 is set, sample holder 2 is hung in the inside of liquid nitrogen tank 1, for storing sample sample holder 2 is placed into liquid nitrogen tank 1 from top opening, the top of sample holder 2 is welded or integrally formed with the hook 3 of fixed, hook 3 hangs on the side wall of the top opening of liquid nitrogen tank 1, the material taking frame includes the support frame 4 of symmetrical setting in the both sides of liquid nitrogen tank 1, the support frame 4 of both sides extends along vertical and plays a supporting role, the distance between two support frames 4 is greater than the cross-sectional diameter of liquid nitrogen tank 1, so that sample rack is placed when two support frames 4 are located at the both sides of liquid nitrogen tank 1, the top between two support frames 4 is fixed with top plate 5 by welding or bolt, top plate 5 is used to connect the top of two support frames 4, so that support frame 4 and top plate 5 form the overall structure of sample rack, horizontal bar 6 is slidably connected on the support frame 4 along vertical, power rod 7 for driving horizontal bar 6 to slide along vertical is equipped on the support frame 4, horizontal bar 6 is driven to slide up and down using power rod 7, it is convenient to efficiently and conveniently adjust the position of horizontal bar 6, pull rod 8 is movably connected between two horizontal bars 6, pull rod 8 is detachably connected with the horizontal bar 6 of both sides, and such structure can conveniently remove it from the horizontal bar 6 of both sides after the bending deformation of pull rod 8 and replace it, the hook 3 is hung on pull rod 8, and such structure is when sampling operation is carried out to sample in liquid nitrogen tank 1, the hook 3 on the top of sample holder 2 is grabbed and pulled up, and it is hung on the pull rod 8 in the upper, then horizontal bar 6 and pull rod 8 are driven to rise slowly using power rod 7, i.e. sample holder 2 can be slowly taken out of liquid nitrogen tank 1, in this process, operator does not need to pull sample holder 2 all the time and wait for liquid nitrogen to drain, which greatly reduces the workload of operator, improves the convenience of sampling, the position of support frame 4 below horizontal bar 6 is equipped with ladder 9, the setting of ladder 9 enables operator to climb to high place along ladder 9 in advance, so as to facilitate the sample holder 2 on the pull rod 8 pulled to high place to be taken down, the height of sample holder 2 in this process will not be higher than operator, so that the security risk of frostbite caused by sample holder 2 or residual liquid nitrogen touching operator is greatly reduced, and the safety of sampling is greatly improved, preferably, the pull rod 8 between two horizontal bars 6 is symmetrically arranged two, one of which is located directly above liquid nitrogen tank 1 for pulling sample holder 2 to sample, and the other is located obliquely above liquid nitrogen tank 1, after sample holder 2 is pulled to high place, operator hangs sample holder 2 on the pull rod 8 obliquely above after taking down, then horizontal bar 6 is driven downward using power rod 7 to lower sample holder 2 to ground, further reducing the direct contact between operator and sample holder 2 in the sampling process, further improving the convenience and safety of sampling.

[0022] Preferably, the two sides of the pulling rod 8 are symmetrically welded or integrally formed with clamping columns 10, the longitudinal section diameter of the clamping column 10 is smaller than that of the pulling rod 8, so that there is a step between the two ends of the clamping column 10 and the pulling rod 8, the top of the two sides of the horizontal rod 6 is provided with a clamping groove matched with the clamping column 10, and the clamping column 10 on the pulling rod 8 is clamped into the clamping groove from above, so that the steps on both sides of the clamping column 10 can be attached to the two sides of the horizontal rod 6, thereby limiting the transverse position of the pulling rod 8 and avoiding the back and forth shaking of the pulling rod 8, thereby improving the firmness of the connection structure between the pulling rod 8 and the horizontal rod 6.

[0023] Preferably, referring to Figure 3 , the clamping groove includes a vertical groove 11 and an inclined groove 12, the inclined groove 12 is communicated with the bottom end of the vertical groove 11, and the top of the vertical groove 11 penetrates to the top of the horizontal rod 6, so that the clamping column 10 enters the vertical groove 11 and then continues to enter the inclined groove 12 along the bottom, and the clamping column 10 is not easy to displace vertically and horizontally at the bottom of the inclined groove 12, so that it can be better clamped with the clamping groove structure, thereby further improving the firmness of the connection structure between the pulling rod 8 and the horizontal rod 6.

[0024] Preferably, referring to Figure 4 , the power rod 7 is rotatably connected with the support frame 4 through a bearing, the power rod 7 penetrates the horizontal rod 6 and is threadedly connected therewith, the two sides of the support frame 4 are symmetrically provided with a sliding groove 13, and the two sides of the horizontal rod 6 are symmetrically provided with a sliding block 14 slidably connected with the sliding groove 13 through welding or bolts, so that the power rod 7 only needs to be rotated to drive the horizontal rod 6 and the sliding block 14 to slide up and down in the sliding groove 13 under the action of the threaded connection, and the position of the horizontal rod 6 after sliding is limited by the threaded connection, thereby greatly simplifying the operation steps of the operator and improving the convenience of pulling the sample for sampling.

[0025] Preferably, a plurality of connecting rods 19 are welded or bolted between the bottoms of the two support frames 4, and the connecting rod 19 is arc-shaped, so that the connecting rod 19 can be used to connect and fix the bottoms of the two support frames 4, thereby improving the firmness of the structure of the two support frames 4, and the arc-shaped shape can avoid interference with the liquid nitrogen tank 1, thereby ensuring that the sampling frame is accurately located above the liquid nitrogen tank 1 for sampling operation.

[0026] Working principle: the utility model discloses the outside of liquid nitrogen tank 1 is provided with the material taking frame, and the material taking frame includes the support frame 4 of setting at both sides of liquid nitrogen tank 1 and the top plate 5 between the top of two support frames 4, the vertical sliding connection of support frame 4 has cross bar 6, and the pull rod 8 of being movably connected between two cross bars 6, when taking sample, the material taking frame is moved to the top of liquid nitrogen tank 1, then the sample rack 2 is pulled up, makes the hook 3 of sample rack 2 top hang on the pull rod 8, after this, utilize power pole 7 drive cross bar 6 slowly slide up can realize the smooth sampling of sample rack 2, and the sample rack 2 is not needed to hold by the operator during sampling process, greatly reduces the workload of sampling, improves the convenience of sampling operation to liquid nitrogen tank 1, the ladder 9 is equipped with in the position of support frame 4 below cross bar 6, and the operator can climb to high place along the ladder 9 and operate power pole 7 during sampling process, make sample rack 2 gradually lift, and the height of sample rack 2 during lifting process will not be higher than the operator, therefore effectively avoid the sample rack 2 or the residual liquid nitrogen on it touch the operator, reduce the possible security risk, improve the safety of liquid nitrogen tank 1 sampling.

Claims

1. A device for taking out sample from a liquid nitrogen tank, comprising a sample holder for use with a liquid nitrogen tank (1), wherein a sample holder (2) is hung in the liquid nitrogen tank (1), and a hook (3) is arranged on the top of the sample holder (2), characterized in that: The material taking frame comprises symmetrical support frames (4) arranged on both sides of the liquid nitrogen tank (1), a top plate (5) arranged between the top portions of the two support frames (4), a horizontal rod (6) vertically and slidably connected to the support frame (4), a power rod (7) arranged on the support frame (4) and used for driving the horizontal rod (6) to vertically slide, a pull rod (8) movably connected between the two horizontal rods (6), and a hook (3) hung on the pull rod (8). ​ 2. The device for taking out the liquid nitrogen according to claim 1, characterized in that: Symmetrical clamping columns (10) are arranged on both sides of the pull rod (8), and clamping grooves (10) are arranged on the top portions of the two horizontal rods (6).

3. The device for taking out the liquid nitrogen according to claim 2, characterized in that: The clamping groove (10) comprises a vertical groove (11) and an inclined groove (12) in communication with the bottom end of the vertical groove (11).

4. The device for taking out the liquid nitrogen according to claim 1, characterized in that: The power rod (7) is rotatably connected to the support frame (4), penetrates through the horizontal rod (6) and is threadedly connected to the horizontal rod (6), symmetrical sliding grooves (13) are arranged on both sides of the support frame (4), and symmetrical sliding blocks (14) are arranged on both sides of the horizontal rod (6) and slidably connected to the sliding grooves (13).

5. The device for taking out the liquid nitrogen according to claim 1, characterized in that: A plurality of connecting rods (19) are arranged between the bottom portions of the two support frames (4), and the connecting rods (19) are arc-shaped.

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