Fixing device for water bath kettle

Abstract

The utility model provides a fixing device for a water bath kettle. The fixing device comprises a top plate, a bottom plate, two supporting strips and a plurality of clamping strips, the top ends of the supporting strips are connected with the top plate through elastic connecting pieces. The plurality of clamping strips on the top plate and the plurality of accommodating holes are arranged in a one-to-one correspondence manner; the clamping strip is rotationally connected with the top plate, a guide pin at the second end of the clamping strip extends into a containing channel in the top plate through a guide notch, and a sliding strip for driving the guide pin is arranged in the containing channel; a positioning rod is arranged on the sliding strip, and a positioning hole is formed in the containing channel. The top plate and the bottom plate are fixed at different heights in the water bath kettle through the supporting strips. And the beaker is clamped by the clamping strip, so that the beaker cannot float in the water bath kettle. And the sliding strip drives the clamping strip to rotate through the guide pin so as to clamp or loosen the beaker. The positioning rod is inserted into the positioning hole to keep a clamping state of the beaker. The positioning rod finally drives the clamping strip to clamp the beaker, so that the beaker cannot be impacted or extruded, and the beaker is prevented from being broken.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water bath, especially relates to a fixing device for water bath. BACKGROUND

[0002] The water bath can heat reagents in biological and chemical laboratories at constant temperature, heat water to a constant temperature by using a heat pipe, heat the reagents at the constant temperature, and meet the constant temperature conditions required by experiments.

[0003] When the water bath is used for constant temperature heating, the reagents to be heated are first loaded into a container, and then the container is placed in the water bath for heating. When a beaker is used as the container for constant temperature heating, the beaker may float due to the small mass or small density of the reagents contained in the beaker, affecting the water bath heating effect. The beaker can be clamped by a device with an elastic clamp and then placed in the water bath, so as to fix the beaker in the water bath. However, when the beaker is clamped by the elastic clamp, the clamp may quickly knock on the beaker due to operation errors or the elastic component has too much elastic force, causing the beaker to break, resulting in waste of reagents, and some reagents may even react with water in the water bath, causing danger. SUMMARY

[0004] Therefore, the utility model aims at providing a fixing device for water bath, which can stably fix the beaker in the water bath.

[0005] To achieve the above-mentioned purposes, the technical scheme of the utility model is as follows:

[0006] A fixing device for water bath, comprising a top plate, a bottom plate, two support bars, and a plurality of clamping bars; the top plate and the bottom plate are connected by a connecting rod; the bottom ends of the two support bars are rotatably connected to the two ends of the bottom plate, and the top ends of the two support bars are connected to the two ends of the top plate by elastic connecting members; a plurality of accommodating holes for accommodating beakers are arranged on the top plate, and the plurality of clamping bars are arranged one-to-one corresponding to the plurality of accommodating holes; each clamping bar is arranged on the side of the corresponding accommodating hole close to the same support bar; the first end of the clamping bar is rotatably connected to the top surface of the top plate, and the bottom surface of the second end of the clamping bar is provided with a guide pin; a guide notch for accommodating the guide pin is arranged on the top surface of the top plate; an accommodating channel is arranged in the top plate below the guide notch, a sliding bar is arranged in the accommodating channel, and the sliding direction of the sliding bar is parallel to the arrangement direction of the plurality of accommodating holes; a plurality of limiting grooves for accommodating the bottom ends of the guide pins are arranged on the sliding bar; a through hole is further arranged on the sliding bar, a liftable positioning rod is arranged in the through hole, and a positioning hole for accommodating the bottom end of the positioning rod is further arranged in the accommodating channel.

[0007] Further, the guide cutout is an arc cutout, and the arc center of the arc cutout faces the first end of the clamping strip.

[0008] Further, the length direction of the limiting slot is perpendicular to the movement direction of the sliding strip.

[0009] Further, the elastic connecting piece is an elastic telescopic rod, one end of the elastic telescopic rod is hinged to the top plate, the other end of the elastic telescopic rod is connected with the supporting strip through a hinge shaft, a long circular hole for accommodating the hinge shaft is arranged on the supporting strip, and the length direction of the long circular hole is perpendicular to the length direction of the telescopic rod.

[0010] Further, the side wall of the clamping strip close to the accommodating hole is an arc surface with an arc center facing the accommodating hole.

[0011] Further, the side wall of the clamping strip close to the accommodating hole is provided with a buffer pad.

[0012] Further, the side wall of the supporting strip away from the top plate is an arc surface with an arc center facing the top plate.

[0013] Further, the side wall of the supporting strip away from the top plate is provided with an antiskid pad.

[0014] Further, the top surface of the top plate is further provided with a positioning cutout for accommodating the positioning rod.

[0015] Further, the inner side wall of the accommodating hole is provided with a guide lining, and the side wall of the guide lining close to the clamping strip is provided with a V-shaped groove with an opening facing the clamping strip.

[0016] Compared with the prior art, the high-pressure steam sterilization pot has the following advantages:

[0017] (1) The fixing device for the water bath pot pushes the top end of the supporting strip to rotate away from the top plate through the elastic supporting piece, so that the side wall of the supporting strip abuts against the inner wall of the water bath pot, the top plate and the bottom plate can be fixed at the required height in the water bath pot according to the model of the beaker. Then, the beaker is clamped in the accommodating hole by rotating the clamping strip towards the accommodating hole, so that the beaker is relatively fixed with the top plate, and the beaker will not float in the water bath pot. The guide pin extends into the top plate through the guide cutout, and the bottom end of the guide pin is inserted into the limiting slot on the sliding strip below the guide cutout. When the sliding strip moves, the guide pin moves through the limiting slot, and then the second end of the clamping strip rotates, so as to facilitate the clamping or loosening state of the beaker. The positioning rod inserted into the positioning hole can lock the sliding strip, and then the clamping strip can keep the clamping state of the beaker. The beaker is clamped or loosened by the clamping strip driven by the positioning rod, and the action is more gentle, so as not to cause impact or large extrusion on the beaker, and to avoid the breakage of the beaker.

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application, and are incorporated herein by reference. The embodiments disclosed in the specification and drawings are illustrative and do not limit the scope of the application. Those of ordinary skill in the art will recognize modifications or variations which, although apparent or not specifically described, fall within the scope of the application. The specification and drawings are, accordingly, to be regarded as illustrative only.

[0020] Figure 1 FIG. 1 is a top view of a fixing device for a water bath according to an embodiment of the present application;

[0021] Figure 2 FIG. 2 is a front view of the fixing device for the water bath according to the embodiment of the present application;

[0022] Figure 3 FIG. 3 is a partial sectional view of the fixing device for the water bath according to the embodiment of the present application.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1 - support bar; 2 - rotating shaft; 3 - containing hole; 4 - clamping bar; 5 - guiding inner liner; 6 - top plate; 7 - elastic connecting piece; 8 - sliding bar; 9 - positioning rod; 10 - guiding cutout; 11 - bottom plate; 12 - connecting rod; 13 - containing passage; 14 - guiding pin; 15 - limiting groove. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.

[0026] ​In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0027] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0028] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] A fixing device for water bath, as shown in Figure 1 、 2 , 3, comprising: top plate 6, bottom plate 11, two support strips 1 and multiple clamping strips 4. Top plate 6 and bottom plate 11 are connected by connecting rod 12. In order to facilitate the insertion of beaker, top plate 6 and bottom plate 11 are parallel and are fixedly connected with each other by connecting rod 12, can stably bear beaker, can also simultaneously put multiple beakers carried into water bath.

[0030] The bottom end of two support strips 1 is rotatably connected with the two ends of bottom plate 11 respectively, and the top end of two support strips 1 is connected with the two ends of top plate 6 through elastic connecting piece 7 respectively. The top end of support strip 1 can rotate away from top plate 6 under the action of the elastic force of elastic connecting piece 7, and abuts on the inner wall of water bath from the two sides of top plate 6 respectively, to fix top plate 6 and bottom plate 11 in water bath. The different heights of support strip 1 can abut on the inner wall of water bath, and then top plate 6 and bottom plate 11 are fixed at different heights in water bath according to the model of beaker.

[0031] A plurality of accommodating holes 3 for accommodating beakers are arranged on the top plate 6, and a plurality of clamping strips are arranged in one-to-one correspondence with the plurality of accommodating holes. Each clamping strip is arranged on the side of the corresponding accommodating hole close to the same supporting strip. The first end of the clamping strip 4 is rotationally connected to the top surface of the top plate 6, and the bottom surface of the second end of the clamping strip 4 is provided with a guide pin 14. Correspondingly, a through hole for accommodating beakers is also arranged on the bottom plate 11, and the beaker can pass through the accommodating hole 3 and the through hole. The first end of the clamping strip 4 is connected to the top surface of the top plate 6 through the rotating shaft 2, and when the clamping strip 4 rotates towards the accommodating hole 3 or away from the accommodating hole 3, the second end of the clamping strip 4 moves towards the two ends of the top plate 6, respectively. The rotation of the clamping strip 4 towards the accommodating hole 3 can press and fix the beaker in the accommodating hole 3 away from the inner wall of the accommodating hole 3, and further fix the beaker and the top plate 6, so as to fix the beaker in the water bath through the top plate 6 fixed in the water bath, and prevent the reagent in the beaker from floating in the water bath when the mass or density of the reagent is small. When the clamping strip 4 rotates away from the accommodating hole 3, the beaker can be loosened and taken out from the accommodating hole 3.

[0032] In order to facilitate the rotation of the clamping strip 4 and change the clamping or loosening state of the beaker, a guide cutout 10 for accommodating the guide pin 14 is arranged on the top surface of the top plate 6. An accommodating channel 13 is arranged in the top plate 6 below the guide cutout 10, a sliding strip 8 is arranged in the accommodating channel 13, and the sliding direction of the sliding strip is parallel to the arrangement direction of the plurality of accommodating holes. A plurality of limiting grooves 15 for accommodating the bottom end of the guide pin 14 are arranged on the sliding strip 8. The bottom end of the guide pin 14 passes through the guide cutout 10 and extends into the top plate 6, the bottom end of the guide pin 14 is inserted into the limiting groove 15 and moves in the limiting groove 15 along with the movement of the sliding strip 8. The sliding strip 8 can move towards the two ends of the top plate 6 in the accommodating channel 13, respectively. When the sliding strip 8 moves, the guide pin 14 can be driven to move in the guide cutout 10 through the limiting groove 15, and further drive the second end of the clamping strip 4 to move towards the accommodating hole 3 to clamp the beaker, or move away from the accommodating hole 3 to loosen the beaker.

[0033] In order to keep the fixing state of the clamping strip 4 to the beaker, a through hole is further arranged on the sliding strip 8, and the positioning rod 9 is arranged in the through hole in a lifting manner. A positioning hole for accommodating the bottom end of the positioning rod 9 is further arranged in the accommodating channel 13. When the positioning rod 9 is lifted, the bottom end of the positioning rod 9 is separated from the positioning hole, so that the sliding strip 8 can freely move in the accommodating channel 13, and then the beaker is clamped or released by the clamping strip 4 driven by the guide pin 14. When the clamping strip 4 clamps and fixes the beaker in the accommodating hole 3, the positioning rod 9 is pressed downward, so that the bottom end of the positioning rod 9 is inserted into the positioning hole. At this time, the positioning rod 9 and the positioning hole are fixed to each other, so that the sliding strip 8 is locked, and then the second end of the clamping strip 4 is locked through the guide pin 14, so that the clamping strip 4 keeps the state of clamping the beaker. The positioning hole can be multiple, so that the clamping strip can keep different clamping positions, and is suitable for clamping beakers of various diameters.

[0034] Specifically, in order to facilitate the rotation of the clamping strip 4, the guide notch 10 is an arc-shaped notch, and the center of the arc-shaped notch is towards the first end of the clamping strip 4. The guide notch 10 needs to avoid hindering the rotation of the clamping strip 4, and the center of the arc-shaped notch coincides with the axis of the rotating shaft 2. When the clamping strip 4 rotates, the movement track of the second end of the clamping strip 4 coincides with the arc-shaped notch. The bottom end of the guide pin 14 penetrates the guide notch 10 and extends into the top plate 6. The guide pin 14 is moved by the sliding strip 8 in the top plate 6, and then drives the clamping strip 4 to rotate and change the clamping or releasing state of the clamping strip 4.

[0035] In addition, the length direction of the limiting groove 15 is perpendicular to the movement direction of the sliding strip 8. Since the guide pin moves along the arc-shaped track with the second end of the clamping strip 4 when the clamping strip 4 rotates, and the movement of the sliding strip 8 is linear, when the sliding strip moves to both ends of the top plate, the bottom end of the guide pin also moves towards both ends of the top plate while the limiting groove moves, and the movement direction is perpendicular to the movement direction of the sliding strip. Therefore, the difference between the movement tracks of the guide pin and the sliding strip 8 needs to be compensated to avoid hindering the movement of the sliding strip 8.

[0036] Optionally, the elastic connecting piece 7 is an elastic telescopic rod, one end of the elastic telescopic rod is hinged to the top plate 6, and the other end of the elastic telescopic rod is connected to the supporting strip 1 through a hinge shaft. A long circular hole for accommodating the hinge shaft is arranged on the supporting strip 1, and the length direction of the long circular hole is perpendicular to the length direction of the telescopic rod. Since the top end of the supporting strip 1 is an arc-shaped movement track, the difference between the movement tracks of the top end of the supporting strip 1 and the elastic telescopic rod needs to be compensated through the cooperation of the long circular hole and the hinge shaft to avoid hindering the movement of the supporting strip 1 by the elastic telescopic rod.

[0037] Optionally, in order to clamp the beaker more stably, the clamping strip 4 is arc-shaped with the arc center facing the accommodating hole 3 near the side wall of the accommodating hole 3. After the clamping strip 4 contacts the beaker in the accommodating hole 3, as the clamping strip 4 gradually presses the beaker, the beaker gradually moves to the middle of the clamping strip 4 along the arc surface of the clamping strip 4, and finally is fixed at a position by the arc surface of the clamping strip 4 and the inner wall of the accommodating hole 3, so that the beaker cannot move.

[0038] In addition, the clamping strip 4 is provided with a buffer pad near the side wall of the accommodating hole 3. The buffer pad can reduce the impact force of the clamping strip 4 when the clamping strip 4 contacts the beaker, can avoid the beaker from being broken, and can also increase the friction between the clamping strip 4 and the beaker, so that the clamping of the beaker is more stable.

[0039] Optionally, in order to make the fixing device smoothly put into or taken out of the water bath, the side wall of the support strip 1 away from the top plate 6 is arc-shaped with the arc center facing the top plate 6. During the process of putting the fixing device into the water bath, the arc-shaped side wall of the support strip 1 can be smoothly extruded to the top plate 6 after contacting the inner wall of the water bath under the action of the elastic support, so as to reduce the shaking during the process of putting into the water bath.

[0040] In addition, the side wall of the support strip 1 away from the top plate 6 is provided with an anti-skid pad. The anti-skid pad can increase the friction between the support strip 1 and the water bath, so as to avoid the shaking of the fixing device during the water bath process.

[0041] Optionally, in order to facilitate the operation of the sliding strip 8 by the positioning rod 9, a positioning cutout for accommodating the positioning rod 9 is further arranged on the top surface of the top plate 6. The top end of the positioning rod 9 extends out of the top plate 6 from the positioning cutout, and the operator can move the sliding strip 8 through the top end of the positioning rod 9, so as to change the position of the clamping strip 4 and switch the clamping or loosening state of the beaker by the clamping strip 4.

[0042] Optionally, in order to adapt to beakers of various diameters, a guide lining 5 is arranged on the inner side wall of the accommodating hole 3, and a V-shaped groove with an opening facing the clamping strip 4 is arranged on the side wall of the guide lining 5 near the clamping strip 4. The guide lining 5 can cooperate with the arc surface of the clamping strip 4, and when the clamping strip 4 clamps the beaker, the beaker is gradually pushed to the tip of the V-shaped groove and fixed. At this time, the clamping strip 4 can prevent the beaker from being taken out of the opening of the V-shaped groove, and the distance between the clamping strip 4 and the V-shaped groove can be changed, so as to adapt to the clamping of beakers of different diameters.

[0043] In the embodiment, the top plate and the bottom plate can be fixed at different heights inside the water bath by the support bars according to the model of the beaker, and then the beaker can be fixed in the accommodating hole by the clamping bars to avoid the beaker floating in the water bath. When the beaker is fixed, the sliding bar inside the top plate drives the guide pin to move, and then drives the clamping bar to rotate, so as to clamp or release the beaker in the accommodating hole. Secondly, the positioning rod on the sliding bar can be lifted or lowered, and the positioning rod is inserted or pulled out of the positioning hole in the top plate to lock or unlock the sliding bar, and then to lock or unlock the clamping bar, so that the clamping bar can keep the clamping state of the beaker, and the clamping or releasing state can be conveniently converted. In addition, the arc surface of the clamping plate towards the accommodating hole can cooperate with the guide lining in the accommodating hole to fix beakers of various diameters, and the buffer pad on the clamping bar can further prevent the beaker from breaking. The arc surface of the side wall of the support bar makes the top plate and the bottom plate smoothly put into and fixed in the water bath, and the anti-skid pad can make the fixing device more stably fixed in the water bath. By using the fixing device in the embodiment, a plurality of beakers can be fixed at different heights in the water bath, and the beaker can be prevented from breaking due to impact or extrusion during the fixing process. The beaker can be conveniently clamped or released.

[0044] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fixing device for a water bath, characterized in that, The utility model relates to a kind of laboratory rack, including: Top plate (6), bottom plate (11), two support strips (1) and multiple clamping strips (4);Top plate (6) and bottom plate (11) are connected by connecting rod (12);The bottom end of two support strips (1) is rotatably connected with the two ends of bottom plate (11) respectively, and the top end of two support strips (1) is connected with the two ends of top plate (6) by elastic connecting piece (7) respectively;Multiple accommodation holes (3) for accommodating beaker are provided on top plate (6), and multiple clamping strips (4) are arranged one by one with multiple accommodation holes (3), and each clamping strip (4) is arranged on the side of the corresponding accommodation hole (3) close to the same support strip;The first end of clamping strip (4) is rotatably connected with the top surface of top plate (6), and the bottom surface of the second end of clamping strip (4) is provided with guide pin (14);Guide notch (10) for accommodating guide pin (14) is provided on the top surface of top plate (6);Accommodation channel (13) is provided in top plate (6) below guide notch (10), sliding strip (8) is provided in accommodation channel (13), and the sliding direction of sliding strip (8) is parallel to the arrangement direction of multiple accommodation holes (3);Multiple limiting grooves (15) for accommodating the bottom end of guide pin (14) are provided on sliding strip (8);Through hole is further provided on sliding strip (8), and the through hole is provided with liftable positioning rod (9), and positioning hole for accommodating the bottom end of positioning rod (9) is further provided in accommodation channel (13).

2. A fixture for use with a water bath according to claim 1, wherein: The guide notch (10) is an arc-shaped notch, and the center of the arc-shaped notch faces the first end of the clamping strip (4).

3. The fixture of claim 1, wherein: The length direction of the limiting groove (15) is perpendicular to the movement direction of the sliding strip (8).

4. The fixture of claim 1, wherein: The elastic connecting piece (7) is an elastic telescopic rod, one end of the elastic telescopic rod is hinged to the top plate (6), the other end of the elastic telescopic rod is connected to the support strip (1) through a hinge shaft, and the support strip (1) is provided with an oblong hole for accommodating the hinge shaft, and the length direction of the oblong hole is perpendicular to the length direction of the telescopic rod.

5. The fixture of claim 1, wherein: The side wall of the clamping strip (4) close to the accommodation hole is an arc surface with the center of the arc facing the accommodation hole (3).

6. The fixture of claim 1, wherein: The side wall of the clamping strip (4) close to the accommodation hole (3) is provided with a buffer pad.

7. The fixture of claim 1, wherein: The side wall of the support strip (1) away from the top plate (6) is an arc surface with the center of the arc facing the top plate.

8. The fixture of claim 1, wherein: The side wall of the support strip (1) away from the top plate (6) is provided with an anti-skid pad.

9. The fixture of claim 1, wherein: The top surface of the top plate (6) is further provided with a positioning notch for accommodating the positioning rod (9).

10. The fixture of claim 1, wherein: The inner side wall of the accommodation hole (3) is provided with a guide lining (5), and the side wall of the guide lining (5) close to the clamping strip (4) is provided with a V-shaped groove with the opening facing the clamping strip (4).

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