Limiting jig for test tube rack

Abstract

The utility model discloses a limiting jig for a test tube rack, which is characterized in that the limiting jig comprises a vertical plate and two parallel limiting strips, and at least two suckers are arranged on the rear side wall of the vertical plate; the two limiting strips are arranged on the front side of the vertical plate and are perpendicular to the front end face of the vertical plate, and the rear ends of the two limiting strips are connected with the vertical plate through a connecting plate; two parallel vertical strip-shaped through grooves are formed in the vertical plate, two screw holes are formed in the rear end face of the connecting plate, each screw hole is right opposite to one vertical strip-shaped through groove, a limiting bolt is inserted into each vertical strip-shaped through groove, and the limiting bolts are arranged in the vertical strip-shaped through grooves. The front end of the limiting bolt penetrates through the vertical strip-shaped through groove to be connected with the screw hole in a threaded mode, and the connecting plate is locked and limited to the front end face of the vertical plate through the limiting bolt. The stability and the safety in the test tube taking and placing process and the test tube rack using process are improved.

Description

Technical Field

[0001] The utility model relates to a detection field, in particular to a test tube rack limiting fixture. Background Art

[0002] Test tubes are commonly used instruments in chemical laboratories. They are used as reaction containers for small amounts of reagents and are used at room temperature or when heated (they should be preheated before heating, otherwise the test tubes are prone to bursting). Among them, test tubes are also one of the indispensable components when testing water, soil, etc. Among them, when the test tubes are used, in order to prevent the test tubes from tipping over, the test tubes will be placed in a test tube rack, which will support and limit the test tubes. However, when the test tube rack is used, it is placed directly on the work desk. During the operation of the staff, the test tube rack may be accidentally touched, causing the test tube rack to tip over, thereby causing the test tubes placed in the test tube rack to tip over, the internal solvent to pour out, and other problems. At the same time, since the test tube rack can accommodate multiple test tubes at the same time, during the process of taking and placing one of the test tubes, the test tube rack may be pulled due to careless operation, causing the problem of tipping over. Summary of the invention

[0003] The utility model aims to provide a test tube rack limiting fixture, by using the structure, the stability and safety of the test tube rack during use can be improved.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a test tube rack limiting fixture, comprising a vertical plate and two mutually parallel limiting strips, and at least two suction cups are arranged on the rear side wall of the vertical plate;

[0005] The two limit bars are arranged on the front side of the vertical board, and the limit bars are arranged perpendicular to the front end surface of the vertical board, and the rear ends of the two limit bars are connected to the vertical board via a connecting plate;

[0006] The vertical plate is provided with two parallel vertical strip through grooves, and the rear end surface of the connecting plate is provided with two screw holes, each of the screw holes is respectively arranged opposite to one of the vertical strip through grooves, and a limiting bolt is respectively inserted in each of the vertical strip through grooves, and the front end of the limiting bolt passes through the vertical strip through groove and is screwed to the screw hole, and the limiting bolt locks the connecting plate and limits it to the front end surface of the vertical plate.

[0007] In the above technical solution, the bottom of the vertical strip-shaped through groove is connected to the bottom of the vertical plate.

[0008] In the above technical solution, a vertical clearance groove is further provided on the rear side of each vertical strip through groove, the width of the vertical clearance groove is greater than the width of the vertical strip through groove, and the screw head at the rear end of the limiting bolt is arranged in the vertical clearance groove.

[0009] In the above technical solution, the bottom surface of the limiting strip is arranged below the bottom surface of the connecting plate.

[0010] In the above technical solution, a transverse slot is provided on the front end surface of the connecting plate, and the two ends of the transverse slot are respectively connected to the two ends of the connecting plate, and the rear end of the limit strip is provided with a clamping piece matching the transverse slot, and the limit strip is moved and inserted into the transverse slot through the clamping piece.

[0011] In the above technical solution, the top of the connecting plate is further provided with a transverse strip through groove connected with the top of the transverse slot, and the two ends of the transverse strip through groove are respectively arranged close to the two ends of the connecting plate;

[0012] Each of the clamping parts passes through the transverse strip through-slot via a limiting part and is limited in the transverse clamping slot.

[0013] In the above technical solution, the limiting member is a locking bolt, and a vertical screw hole is provided on the top of each of the clamping members. The bottom of the locking bolt passes through the transverse strip groove and is screwed to the vertical screw hole. The screw head at the top of the locking bolt abuts against the top surface of the connecting plate and limits the clamping member in the transverse slot.

[0014] In the above technical solution, the cross-section of the transverse slot is a T-shaped or trapezoidal structure, and the connecting piece matches the transverse slot.

[0015] In the above technical solution, the rear end surface of the limiting strip abuts against the front end surface of the connecting plate.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] 1. The neutral plate of the utility model is directly adsorbed on the wall or the corresponding position by the suction cup. By adjusting the position and distance of the two limit strips, the width of the two limit strips and the distance between the bottom surface of the vertical plate are adjusted to adapt to different test tube racks. The bottom of the test tube rack is directly inserted under the two limit strips to limit the test tube rack. This can ensure the stability and safety of the test tube rack during the process of taking and placing the test tube, prevent the test tube rack from tipping over and shaking, and ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the first embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 3 yes Figure 1Schematic diagram of the cross-sectional structure of the middle BB;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure in the first embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of a test tube rack in the utility model.

[0023] Among them: 1. Vertical plate; 2. Limiting strip; 3. Suction cup; 4. Connecting plate; 5. Vertical strip groove; 6. Screw hole; 7. Limiting bolt; 8. Test tube rack; 9. Bottom plate; 10. Shelf; 11. Placement hole; 12. Vertical clearance groove; 13. Horizontal slot; 14. Connecting piece; 15. Horizontal strip groove; 16. Locking bolt; 17. Vertical screw hole. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Example 1: See Figure 1-5 As shown, a test tube rack limiting fixture comprises a vertical plate 1 and two mutually parallel limiting strips 2, and at least two suction cups 3 are arranged on the rear side wall of the vertical plate 1;

[0026] The two limit strips 2 are arranged on the front side of the vertical board 1, and the limit strips 2 are arranged perpendicular to the front end surface of the vertical board 1, and the rear ends of the two limit strips 2 are connected to the vertical board 1 through a connecting plate 4;

[0027] The vertical plate 1 is provided with two parallel vertical strip through grooves 5, and the rear end surface of the connecting plate 4 is provided with two screw holes 6, each of the screw holes 6 is arranged opposite to one of the vertical strip through grooves 5, and a limiting bolt 7 is inserted into each of the vertical strip through grooves 5, and the front end of the limiting bolt 7 passes through the vertical strip through grooves 5 and is screwed to the screw hole 6, and the limiting bolt 7 locks the connecting plate 4 to be limited on the front end surface of the vertical plate 1.

[0028] In this embodiment, it is used to set the work surface against the wall (or the back side of the work surface is provided with a baffle). When in use, the distance between the connecting plate and the bottom of the vertical plate is adjusted in advance by the limit bolts (that is, the distance between the limit strip and the bottom surface of the vertical plate is adjusted), and then the bottom of the vertical plate is placed on the work surface. The vertical plate is adsorbed by the suction cup and the wall or the baffle, so as to position the vertical plate. At this time, the height of the limit strip and the work surface will be slightly higher than the thickness of the bottom of the test tube rack. The test tube rack 8 includes a bottom plate 9 and a shelf 10 arranged in the middle of the top surface of the bottom plate 9. The shelf will have multiple test tube placement holes 11, see Figure 5As shown. When the test tube rack needs to be positioned, directly place the shelf of the test tube rack directly between the two limit bars, and the two sides of the bottom plate of the test tube rack directly face the bottom sides of the two limit bars, and then push the test tube rack backward along the workbench so that the two sides of the bottom plate of the test tube rack are moved to the bottom of a limit bar respectively. In this way, when the test tube is taken from the test tube rack, the existence of the two limit bars will limit the up and down and left and right movement of the test tube rack, and the rear side will also be limited by the vertical plate, so it can only move forward. Moreover, the movement up, down, left and right can only be slight, and the problem of the test tube rack tipping over will not occur, ensuring the stability and safety of use. When the test tube rack needs to be removed, directly move the test tube rack forward in parallel so that the bottom plate is completely separated from the two limit bars, and the test tube rack can be easily removed.

[0029] See also Figure 1 , 2 As shown in Figures 4 and 5, the bottom of the vertical strip-shaped through groove 5 is connected to the bottom of the vertical plate 1. In this way, the distance between the limit strip and the bottom surface of the vertical plate can be adjusted as low as possible, which is suitable for the bottom plate of a thinner test tube rack.

[0030] See also Figure 2 As shown, a vertical clearance groove 12 is also provided on the rear side of each vertical strip through groove 5 , the width of the vertical clearance groove 12 is greater than the width of the vertical strip through groove 5 , and the screw head at the rear end of the limiting bolt 7 is arranged in the vertical clearance groove 12 .

[0031] Among them, the front end of the limiting bolt is screwed with the screw hole of the connecting plate, so there will be a screw head at the rear end of the limiting bolt. When the connecting plate and the vertical plate are locked and limited, the screw head of the limiting bolt will abut against the rear end surface of the vertical plate, which will affect the adsorption force and adsorption strength of the suction cup and the wall or baffle. Therefore, through the setting of the vertical clearance groove, the screw head of the limiting bolt is limited. When the limiting bolt and the screw hole of the connecting plate are screwed and locked on the vertical plate, the screw head of the limiting bolt is in the vertical clearance groove and its screw head will not be exposed, so that the adsorption strength of the suction cup and the wall or baffle is better.

[0032] See also Figure 1-4 As shown, the bottom surface of the limiting strip 2 is arranged below the bottom surface of the connecting plate 4. In this way, the rear end of the bottom plate of the test tube rack can be against the front end surface of the vertical plate, which does not affect the placement of the test tube rack, so that the limiting strip can be as much as possible above the bottom plate of the test tube rack to limit the test tube rack and ensure the stability and safety of the test tube rack during the process of taking and placing the test tube.

[0033] See also Figure 1-4As shown, a transverse slot 13 is provided on the front end surface of the connecting plate 4, and the two ends of the transverse slot 13 are respectively connected to the two ends of the connecting plate 4, and a clamping piece 14 matching the transverse slot 13 is provided at the rear end of the limiting strip 2, and the limiting strip 2 is moved and inserted into the transverse slot 13 through the clamping piece 14.

[0034] The limit strip is installed in the horizontal slot of the connecting plate through the clamping piece, so that the distance between the two limit strips can be adjusted to be suitable for test tube racks of different widths. At the same time, the connecting plate can adjust the vertical distance with the vertical plate, so the height of the limit strip can be adjusted to be suitable for test tube racks of different heights, thereby improving the scope of application.

[0035] See also Figure 3 , 4 As shown, the top of the connecting plate 4 is also provided with a transverse strip through groove 15 connected with the top of the transverse slot 13, and the two ends of the transverse strip through groove 15 are respectively arranged close to the two ends of the connecting plate 4;

[0036] Each of the clamping members 14 passes through the transverse strip through slot 15 via a limiting member and is limited in the transverse clamping slot 13 .

[0037] The limiting member is a locking bolt 16, and a vertical screw hole 17 is provided on the top of each of the clamping members 14. The bottom of the locking bolt 16 passes through the transverse strip groove 15 and is screwed to the vertical screw hole 17. The screw head at the top of the locking bolt 16 abuts against the top surface of the connecting plate 4 and limits the clamping member 14 to be located in the transverse slot 13.

[0038] In this embodiment, in order to facilitate the adjustment of the lateral position of the limit bar, the clip is directly moved in the lateral slot, and at the same time, the locking bolt is passed through the lateral bar slot and the vertical screw hole of the clip to be screwed. When the position of the limit bar needs to be adjusted, the locking bolt is loosened to move the limit bar. After the limit bar position movement and adjustment are completed, the limit bolt is tightened to achieve the limiting of the limit bar, so that the limit bar will not move relative to the connecting plate.

[0039] See also Figure 2-4 As shown, the cross section of the transverse slot is a T-shaped or trapezoidal structure, and the connecting piece matches the transverse slot.

[0040] In this embodiment, the cross section of the transverse slot is T-shaped, and the clamping member is also a T-shaped structure, so that the clamping member is restricted by the transverse slot so that the clamping member can only move within the transverse slot.

[0041] The rear end surface of the limiting strip abuts against the front end surface of the connecting plate, so as to ensure that the limiting strip is always perpendicular to the connecting plate, and the two limiting strips are always arranged parallel to each other, so that the test tube rack is limited by the two limiting strips.

Claims

1. A test tube rack limiting fixture, characterized in that: It comprises a vertical plate and two mutually parallel limiting strips, and at least two suction cups are arranged on the rear side wall of the vertical plate; The two limit bars are arranged on the front side of the vertical board, and the limit bars are arranged perpendicular to the front end surface of the vertical board, and the rear ends of the two limit bars are connected to the vertical board via a connecting plate; The vertical plate is provided with two parallel vertical strip through grooves, and the rear end surface of the connecting plate is provided with two screw holes, each of the screw holes is respectively arranged opposite to one of the vertical strip through grooves, and a limiting bolt is respectively inserted in each of the vertical strip through grooves, and the front end of the limiting bolt passes through the vertical strip through groove and is screwed to the screw hole, and the limiting bolt locks the connecting plate and limits it to the front end surface of the vertical plate.

2. The test tube rack limiting fixture according to claim 1, characterized in that: The bottom of the vertical strip through groove is connected with the bottom of the vertical plate.

3. The test tube rack limiting fixture according to claim 1, characterized in that: A vertical clearance groove is also provided on the rear side of each of the vertical strip through grooves. The width of the vertical clearance groove is greater than the width of the vertical strip through groove. The screw head at the rear end of the limiting bolt is arranged in the vertical clearance groove.

4. The test tube rack limiting fixture according to claim 1, characterized in that: The bottom surface of the limiting strip is arranged below the bottom surface of the connecting plate.

5. The test tube rack limiting fixture according to claim 1, characterized in that: A transverse slot is provided on the front end surface of the connecting plate, and the two ends of the transverse slot are respectively connected to the two ends of the connecting plate. A clamping piece matching the transverse slot is provided at the rear end of the limit strip, and the limit strip is moved and inserted into the transverse slot through the clamping piece.

6. The test tube rack limiting fixture according to claim 5, characterized in that: The top of the connecting plate is also provided with a transverse strip through groove which is connected with the top of the transverse slot, and the two ends of the transverse strip through groove are respectively arranged close to the two ends of the connecting plate; Each of the clamping parts passes through the transverse strip through-slot via a limiting part and is limited in the transverse clamping slot.

7. The test tube rack limiting fixture according to claim 6, characterized in that: The limiting member is a locking bolt, and a vertical screw hole is provided on the top of each of the clamping members. The bottom of the locking bolt passes through the transverse strip groove and is screwed to the vertical screw hole. The screw head at the top of the locking bolt abuts against the top surface of the connecting plate and limits the clamping member in the transverse slot.

8. The test tube rack limiting fixture according to claim 5, characterized in that: The cross section of the transverse slot is a T-shaped or trapezoidal structure, and the clamping piece matches the transverse slot.

9. The test tube rack limiting fixture according to claim 5, characterized in that: The rear end surface of the limiting strip abuts against the front end surface of the connecting plate.

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