Adjustable iron stand

Abstract

The utility model relates to the technical field of chemical test instruments, in particular to an adjustable iron stand which comprises a base, a containing groove is integrally formed in the top face of the base, a side column is fixedly connected to one side of the base, a limiting sliding groove is formed in the middle of the side column, a lifting assembly is arranged in the limiting sliding groove, and the lifting assembly is fixedly connected with the side column. An eccentric adjusting assembly is arranged at the top of the lifting assembly, and a test tube clamping assembly is movably connected to the middle of the eccentric adjusting assembly; the eccentric adjusting assembly comprises a driving motor connected with the lifting assembly. According to the iron stand disclosed by the utility model, the inclination angle of the test tube can be changed through the eccentric adjusting component, and the test tube can do eccentric rotary motion in the heating process of the test tube, so that the purposes of heating while inclining, shaking up chemical substances in the test tube and changing the heating position of an alcohol lamp on the bottom end of the test tube are realized, and uniform heating is realized; and the test tube clamping assembly can adjust the distance between the two groups of test tube racks according to the test tubes with different lengths.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical test instrument technical field, concretely is adjustable iron stand. BACKGROUND

[0002] Chemistry is a science of studying the nature, composition, structure, change and change rule of matter, in chemical experiment, need to use iron stand, and iron stand is composed of iron stable base and one iron stick vertical to the base and fixed on the iron base, is used to place and fix chemical reaction device, makes reaction operation safe, convenient, according to different chemical reactions, can configure the additional instruments such as iron ring, flask clamp, burette clamp, condenser clamp, iron clamp that can move up and down on the iron stick, if heating is needed, alcohol lamp and other heating devices can be placed on the iron stand.

[0003] In the prior art, the utility model discloses a chemical experiment iron stand with the announcement number CN222152116U, including base, placing table, test tube clamp and adjusting mechanism, and the placing table is placed on the base, and the adjusting mechanism includes rotating rod, oval plate, two stress plates, two springs, two connecting pieces, two vertical plates, two limit rods, two hollow blocks, two slide rods and two connecting rods, two hollow blocks are fixedly connected with the base, two slide rods are slidably connected with the corresponding hollow block, the base has a groove and two through holes, the hollow block has a guide hole, the slide rod has a plurality of limiting grooves, the rotating rod is rotatably connected with the base, the oval plate is fixedly connected with the rotating rod, the two stress plates are slidably connected with the groove, and the two ends of the spring are fixedly connected with the corresponding stress plate, the stress plate is in contact with the oval plate, in this way, the height of the test tube clamp can be adjusted more conveniently, and the adjusting efficiency is improved.

[0004] The above-mentioned iron stand is inconvenient to adjust the angle of the test tube after fixing the test tube, that is, the angle of the test tube cannot be flexibly adjusted when heating the test tube, and the specific test requirements cannot be met. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an adjustable iron stand to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: an adjustable iron stand, including the base, the top surface of the base is integrally formed with a placing groove, one side of the base is fixedly connected with a side column, the middle part of the side column is provided with a limiting sliding groove, the inside of the limiting sliding groove is equipped with a lifting assembly, the top of the lifting assembly is equipped with an eccentric adjusting assembly, the middle part of the eccentric adjusting assembly is movably connected with a test tube clamping assembly; the eccentric adjusting assembly includes a driving motor connected with the lifting assembly, the output end of the driving motor is fixedly connected with a rotating seat, the middle part of the rotating seat is rotatably connected with a hinged piece through a connecting shaft, the outer side of the hinged piece is equipped with a square frame, the both sides of the square frame are rotatably connected with a contact frame, the front side of the square frame is integrally formed with a handle.

[0007] Preferably, the test tube clamping assembly includes an upper test tube rack fixedly connected to the bottom end of the hinged piece, the bottom surface of the upper test tube rack is fixedly connected with a threaded sleeve, the inside of the threaded sleeve is threadedly connected with a threaded rod, the bottom end of the threaded rod is rotatably connected with a lower test tube rack.

[0008] Preferably, the middle part of the lower test tube rack and the upper test tube rack is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a spring, one end of the spring extending to the outside of the mounting groove is fixedly connected with a test tube clamp, the middle part of the side close to the test tube clamp is fixedly connected with a pull rope, the end of the pull rope away from the test tube clamp is fixedly connected with a pull ring.

[0009] Preferably, the bottom end of the threaded rod is fixedly connected with a single chain wheel, the outside of the single chain wheel is movably connected with a chain, the side of the chain away from the single chain wheel is connected with the outer ring of a double chain wheel.

[0010] Preferably, the middle part of the double chain wheel is fixedly penetrated with a rotating shaft, the bottom end of the rotating shaft is connected with the top surface of the lower test tube rack, and the top end of the rotating shaft is fixedly connected with a rotating rudder.

[0011] Preferably, the lifting assembly includes a lifting motor fixedly connected to the inside bottom of the limiting sliding groove, the output end of the lifting motor is fixedly connected with a lead screw, the lead screw is threadedly penetrated in the middle part of one side of a lifting top plate, the front side of the lifting top plate is integrally formed with an extension plate.

[0012] Preferably, the handle is rotatably connected with the middle part of the extension plate, and the contact frame clamps the upper test tube rack in the middle part.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1、Through eccentric adjusting assembly, the test tube can be kept vertical or inclined state, the test tube is heated in different state conveniently, if the test tube state needs to be changed during the experiment, the handle is manually rotated to finally drive the contact frame to change the inclination angle of the upper test tube frame, thereby the inclination angle of the test tube is changed, and in the process, the driving motor can also be started to cooperate with the inclination of the test tube, the test tube makes eccentric rotation, the chemical in the test tube is shaken up, and the heating position of the alcohol lamp to the bottom end of the test tube is changed, the purpose of uniform heating is realized;

[0015] 2、When the length of the test tube changes, the double sprocket in the test tube clamping assembly is rotated to drive the rotation of the two single sprockets, thereby the two threaded rods are rotated in the same direction, since the screw rotation directions of the two threaded rods are same, the two threaded rods are simultaneously screwed into or out of the threaded sleeve, thereby the total length of the threaded rod and the threaded sleeve combination is changed, finally the distance between the upper and lower test tube frames is changed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view sectional three-dimensional structure schematic diagram of the side column in the utility model;

[0018] Figure 3 It is the bottom view three-dimensional structure schematic diagram of the eccentric rotation assembly in the utility model;

[0019] Figure 4 It is the explosion structure schematic diagram of the eccentric rotation assembly in the utility model;

[0020] Figure 5 It is the front view sectional three-dimensional structure schematic diagram of the upper test tube frame in the utility model;

[0021] Figure 6 It is the top view three-dimensional structure schematic diagram of the double sprocket part in the utility model.

[0022] In the drawing: 1, base; 2, placing groove; 3, side column; 4, limit sliding slot; 5, lifting assembly; 501, lifting motor; 502, lead screw; 503, lifting top plate; 504, extension plate; 6, eccentric adjusting assembly; 601, driving motor; 602, rotating seat; 603, hinged piece; 604, square frame; 605, contact frame; 606, handle; 7, test tube clamping assembly; 701, upper test tube frame; 702, threaded sleeve; 703, threaded rod; 704, lower test tube frame; 705, mounting groove; 706, spring; 707, test tube clamp; 708, pull rope; 709, pull ring; 7010, single sprocket; 7011, chain; 7012, double sprocket; 7013, rotating shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary technical personnel in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1 to 6 The utility model provides a adjustable iron stand, including base 1, the top surface of base 1 is integrally formed with placing groove 2, one side of base 1 is fixedly connected with side column 3, the middle part of side column 3 is provided with limit sliding slot 4, the inside of limit sliding slot 4 is equipped with lifting assembly 5, the top of lifting assembly 5 is equipped with eccentric adjusting assembly 6, the middle part of eccentric adjusting assembly 6 is movably connected with test tube clamping assembly 7.

[0025] In the embodiment, as shown in Figure 3 and Figure 4 , eccentric adjusting assembly 6 includes the drive motor 601 connected with lifting assembly 5, the output end of drive motor 601 is fixedly connected with rotating seat 602, the middle part of rotating seat 602 is rotatably connected with hinged piece 603 through connecting shaft, the outside of hinged piece 603 is equipped with square frame 604, the both sides of square frame 604 are rotatably connected with contact frame 605, the front side of square frame 604 is integrally formed with handle 606, contact frame 605 clamps upper test tube rack 701 in the middle part, handle 606 is rotatably connected with the middle part of extension plate 504;Through drive motor 601 drive rotating seat 602 self-rotation, rotating seat 602 rotation can drive hinged piece 603 rotate along, hinged piece 603 drive the bottom connected upper test tube rack 701 follow the rotation, the upper test tube rack 701 of this time can drive the test tube clamped in the middle part rotate along, by placing alcohol lamp in the placing groove 2 on the top surface of base 1, can use alcohol lamp to heat the bottom of test tube, can decide whether to need to rotate test tube according to specific test needs, if need to adjust the inclination angle of test tube, manually rotate handle 606 to drive square frame 604 to tilt, square frame 604 tilt will drive the both sides contact frame 605 tilt along, thereby extruding and tilting upper test tube rack 701, the test tube of this time will be in the state of inclination, and the inclination angle is determined by the angle of rotation of handle 606, and whether to need to start drive motor 601 to drive test tube to rotate is determined according to the specific test needs, if drive motor 601 is started in the test tube inclination state, then will make test tube eccentric rotation movement, start certain shake even effect, and the scope of application is expanded.

[0026] In the embodiment, as shown in Figure 5 and Figure 6As shown, the test tube clamping assembly 7 includes the upper test tube rack 701 fixedly connected to the bottom end of the hinge 603, the bottom surface of the upper test tube rack 701 is fixedly connected with a threaded sleeve 702, the threaded sleeve 702 is internally threadedly connected with a threaded rod 703, the bottom end of the threaded rod 703 is rotatably connected with a lower test tube rack 704, the middle part of the upper test tube rack 701 and the lower test tube rack 704 are both provided with a mounting groove 705, the inner wall of the mounting groove 705 is fixedly connected with a spring 706, one end of the spring 706 extending to the outside of the mounting groove 705 is fixedly connected with a test tube clamp 707, the middle part of one side of the test tube clamp 707 close to the spring 706 is fixedly connected with a pull rope 708, the end of the pull rope 708 away from the test tube clamp 707 is fixedly connected with a pull ring 709, the bottom end of the threaded rod 703 is fixedly connected with a single chain wheel 7010, the outside of the single chain wheel 7010 is movably connected with a chain 7011, one side of the chain 7011 away from the single chain wheel 7010 is connected with the outer ring of a double chain wheel 7012, the middle part of the double chain wheel 7012 is fixedly penetrated with a rotating shaft 7013, the bottom end of the rotating shaft 7013 is connected with the top surface of the lower test tube rack 704, and the top end of the rotating shaft 7013 is fixedly connected with a rotating rudder; when fixing the test tube, the pull ring 709 is pulled to drive the pull rope 708 to move, the pull rope 708 pulls the test tube clamp 707 to press the spring 706, at this time, the two test tube clamps 707 are separated, the test tube can be inserted between the two test tube clamps 707, then the pull ring 709 is loosened, under the rebounding action of the spring 706, the test tube clamp 707 resets to clamp the test tube, achieving the purpose of fixing the test tube, if the length of the test tube changes during the test, the rotating rudder can be manually twisted to drive the rotating shaft 7013 to rotate, the rotating shaft 7013 rotates to drive the double chain wheel 7012 to rotate, the double chain wheel 7012 drives the single chain wheel 7010 to rotate through the chain 7011, the single chain wheel 7010 drives the threaded rod 703 connected thereto to rotate, the threaded rod 703 rotates to realize threaded movement with the internal thread of the threaded sleeve 702, so as to shorten or increase the distance between the upper and lower test tube racks, so as to adapt to test tubes of different lengths.

[0027] As shown in the embodiment, Figure 2 The lifting assembly 5 includes a lifting motor 501 fixedly connected to the inner bottom of the limiting sliding groove 4, the output end of the lifting motor 501 is fixedly connected with a lead screw 502, the lead screw 502 is threadedly penetrated in the middle part of one side of a lifting top plate 503, and the front side of the lifting top plate 503 is integrally formed with an extension plate 504; the lead screw 502 is driven to rotate by starting the lifting motor 501, the lead screw 502 rotates to drive the lifting top plate 503 to move along the axial direction of the lead screw 502, so as to adjust the height of the lifting top plate 503, the lifting top plate 503 and the extension plate 504 drive the entire eccentric adjusting assembly 6 and the test tube clamping assembly 7 to synchronously lift.

[0028] The working process of the adjustable iron stand table is as follows: firstly, the interval between the upper and lower two groups of test tube racks is adjusted according to the length of the test tube, then the test tube is inserted into the middle of the two groups of test tube racks, the test tube is clamped and fixed by the test tube clamp 707, when the test tube inclination angle needs to be adjusted, the handle 606 can be manually shaken to drive the eccentric adjusting assembly 6 to work, so that the inclination angle of the test tube is changed, when the test tube needs to be uniformly heated in the test process, the driving motor 601 is started to drive the upper test tube rack 701 to make eccentric rotation movement, so that the structure can effectively change the heating position of the bottom end of the test tube, and uniform heating is realized.

[0029] The contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable iron stand, comprising a base (1), characterized in that: The top surface of the base (1) is integrally formed with a placement groove (2). A side column (3) is fixedly connected to one side of the base (1). A limiting slide groove (4) is opened in the middle of the side column (3). A lifting component (5) is provided inside the limiting slide groove (4). An eccentric adjustment component (6) is provided on the top of the lifting component (5). A test tube clamping component (7) is movably connected to the middle of the eccentric adjustment component (6). The eccentric adjustment component (6) includes a drive motor (601) connected to the lifting component (5). A rotating seat (602) is fixedly connected to the output end of the drive motor (601). A hinge (603) is rotatably connected to the middle of the rotating seat (602) through a connecting shaft. A square frame (604) is sleeved on the outside of the hinge (603). A contact frame (605) is rotatably connected to both sides of the square frame (604). A handle (606) is integrally formed on the front side of the square frame (604).

2. The adjustable iron frame according to claim 1, characterized in that: The test tube clamping assembly (7) includes an upper test tube rack (701) fixedly connected to the bottom end of the hinge (603). A threaded sleeve (702) is fixedly connected to the bottom surface of the upper test tube rack (701). A threaded rod (703) is threadedly connected inside the threaded sleeve (702). A lower test tube rack (704) is rotatably connected to the bottom end of the threaded rod (703).

3. The adjustable iron frame according to claim 2, characterized in that: The lower test tube rack (704) and the upper test tube rack (701) are both provided with mounting grooves (705) in the middle. A spring (706) is fixedly connected to the inner wall of the mounting groove (705). A test tube clamp (707) is fixedly connected to one end of the spring (706) extending to the outside of the mounting groove (705). A pull rope (708) is fixedly connected to the middle of the side of the test tube clamp (707) near the spring (706). A pull ring (709) is fixedly connected to the end of the pull rope (708) away from the test tube clamp (707).

4. An adjustable iron frame according to claim 3, characterized in that: The bottom end of the threaded rod (703) is fixedly connected to a single sprocket (7010), and a chain (7011) is movably connected to the outside of the single sprocket (7010). The side of the chain (7011) away from the single sprocket (7010) is connected to the outer ring of the double sprocket (7012).

5. An adjustable iron frame according to claim 4, characterized in that: A rotating shaft (7013) is fixedly inserted through the middle of the double sprocket (7012). The bottom end of the rotating shaft (7013) is connected to the top surface of the lower test tube rack (704), and a rotating rudder is fixedly connected to the top end of the rotating shaft (7013).

6. An adjustable iron frame according to claim 1, characterized in that: The lifting assembly (5) includes a lifting motor (501) fixedly connected to the bottom of the inner side of the limiting slide groove (4). The output end of the lifting motor (501) is fixedly connected to a lead screw (502). The thread of the lead screw (502) passes through the middle of one side of the lifting top plate (503). An extension plate (504) is integrally formed on the front side of the lifting top plate (503).

7. An adjustable iron frame according to claim 6, characterized in that: The handle (606) is rotatably connected to the middle of the extension plate (504), and the contact frame (605) clamps the upper test tube rack (701) in the middle.

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