Balance specific gravity device for similar compatibility experiment

Abstract

The utility model belongs to the technical field of experimental instruments, and discloses a balance specific gravity device for a similarity compatibility experiment, which comprises a bracket assembly which is placed on an electronic analytical balance and is used for supporting a beaker, and also comprises a suspension assembly which is arranged in the middle of the bracket assembly and is used for placing test pieces in upper and lower regions for variable weighing, a support assembly used for raising separated water for weighing is installed between the suspension assembly and the support assembly, and the suspension assembly and the support assembly are connected with the support assembly in a pluggable mode. The suspension assembly comprises a first tray, and a suspension rod is arranged at the bottom of the first tray. According to the balance specific gravity device for the similarity compatibility experiment, test pieces are placed in an upper partition and a lower partition for variable weighing, so that the operation convenience is improved, and the experiment speed is increased; and through the arrangement of a fixed height suspension, errors caused by different soaking heights are avoided, and the experiment accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental instruments, in particular to a balance specific gravity device for similarity compatibility experiments. Background Art

[0002] Emulsified oil or concentrated liquid is mixed with water to form a test solution with the specified concentration for use in the product. The nitrile rubber sheet used as the test piece is accurately measured according to the test method and steps specified in GB / T 14832. The rubber test piece is immersed in the test solution at a temperature of (70±2)℃, and its volume change is detected after 168 hours.

[0003] The prior art has the following problems: (1) The connection between the bracket and the nitrile rubber sheet needs to be fixed with nylon wire, and the binding height is different each time, which can easily lead to large errors in experimental data; (2) When encountering large-scale testing experiments, weighing the clean nitrile rubber sheet and weighing it in distilled water need to be switched back and forth, and the method of tying nylon rope is not convenient enough, resulting in reduced experimental efficiency. Utility Model Content

[0004] The utility model aims to provide a balance specific gravity device for similar compatibility experiments to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A balance specific gravity device for similarity compatibility experiments, including a bracket assembly for supporting a beaker placed on an electronic analytical balance, and also including a suspension assembly installed in the middle of the bracket assembly for holding test pieces in upper and lower partitions for variable weighing, a support assembly for raising and separating from water for weighing is installed between the suspension assembly and the bracket assembly, and the suspension assembly and the support assembly are respectively plug-in connected to the bracket assembly; the suspension assembly includes a first tray, a suspension rod is provided at the bottom of the first tray, a hanger is provided at the bottom of the suspension rod, a second tray is provided at the bottom of the hanger, and a supporting net is provided at the bottom of the second tray; the support assembly includes a cushion block, a second avoidance groove is provided on one side of the cushion block, and anti-slip grooves are provided on the upper and lower end surfaces of the cushion block.

[0007] Furthermore, the support assembly includes a bottom plate, two columns are symmetrically arranged at both ends of the bottom plate, a top plate is installed between the top ends of the columns, and a first avoidance groove is arranged in the middle of the top plate.

[0008] Furthermore: the upright columns are welded to the bottom plate and the top plate respectively, and the first avoidance groove and the second avoidance groove are both U-shaped.

[0009] Furthermore: the depth of the first tray and the second tray are both 1 cm.

[0010] Furthermore: the suspension rod is cylindrical and has a length of 12 cm.

[0011] Furthermore: the cushion block is made of natural rubber material, is cylindrical in shape, and has a height of 10 cm.

[0012] Compared with the prior art, the beneficial effects are:

[0013] 1. The setting of variable weighing by placing the test pieces in the upper and lower partitions not only increases the convenience of operation, but also speeds up the experiment;

[0014] 2. The fixed height suspension setting avoids the error caused by different immersion heights and improves the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a balance specific gravity device for similarity compatibility experiment described in the utility model;

[0016] Figure 2 It is a schematic diagram of a bracket assembly of a balance specific gravity device for similarity compatibility experiment described in the utility model;

[0017] Figure 3 It is a schematic diagram of a suspension assembly of a balance specific gravity device for similarity compatibility experiment described in the utility model;

[0018] Figure 4 It is a schematic diagram of a support assembly of a balance specific gravity device for similarity compatibility experiment described in the utility model.

[0019] In the accompanying drawings: 101, bottom plate; 102, column; 103, top plate; 104, first avoidance groove; 201, first tray; 202, hanging rod; 203, hanger; 204, second tray; 205, supporting net; 301, cushion block; 302, second avoidance groove; 303, anti-slip pattern; 4, electronic analytical balance; 5, beaker. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4A balance specific gravity device for similarity compatibility experiment includes a bracket assembly for supporting a beaker 5 placed on an electronic analytical balance 4, and also includes a suspension assembly installed in the middle of the bracket assembly for holding test pieces in upper and lower partitions for variable weighing. A support assembly for raising and separating from water for weighing is installed between the suspension assembly and the bracket assembly, and the suspension assembly and the support assembly are respectively connected to the bracket assembly by plugging and unplugging.

[0022] In this embodiment: the support assembly includes a bottom plate 101, two columns 102 are symmetrically arranged at both ends of the bottom plate 101, a top plate 103 is installed between the top ends of the columns 102, a first avoidance groove 104 is arranged in the middle of the top plate 103, the columns 102 are welded to the bottom plate 101 and the top plate 103 respectively, the first avoidance groove 104 is U-shaped, the bottom plate 101 is placed on the electronic analytical balance 4, the beaker 5 filled with water is placed on the bottom plate 101, the suspension rod 202 passes through the first avoidance groove 104 and is inserted into the top plate 103 supported by the columns 102 to support the first tray 201;

[0023] In this embodiment: the suspension assembly includes a first tray 201, a suspension rod 202 is provided at the bottom of the first tray 201, the suspension rod 202 is cylindrical and has a length of 12 cm, a hanger 203 is provided at the bottom of the suspension rod 202, a second tray 204 is provided at the bottom of the hanger 203, a supporting net 205 is provided at the bottom of the second tray 204, the depth of the first tray 201 and the second tray 204 are both 1 cm, the test piece is placed in the first tray 201 for weighing, or the top plate 103 directly supports the first tray 201, and the second tray 204 supports the test piece through the supporting net 205 and immerses it in water under the suspension of the suspension rod 202 and the hanger 203;

[0024] In this embodiment: the support assembly includes a pad block 301, a second avoidance groove 302 is arranged on one side of the pad block 301, the column 102 is welded to the bottom plate 101 and the top plate 103 respectively, the second avoidance groove 302 is U-shaped, and the upper and lower end surfaces of the pad block 301 are respectively provided with anti-slip grooves 303. The pad block 301 is made of natural rubber material, has a cylindrical shape, and has a height of 10 cm. The pad block 301 passes through the suspension rod 202 through the second avoidance groove 302 and is inserted between the first pallet 201 and the top plate 103, so that the top plate 103 supports the first pallet 201 through the pad block 301.

[0025] Working principle: first place the bottom plate 101 on the electronic analytical balance 4, place the beaker 5 filled with water on the bottom plate 101, then pass the suspension rod 202 through the first avoidance groove 104 and insert it into the top plate 103 supported by the column 102, pass the cushion block 301 through the suspension rod 202 through the second avoidance groove 302, and insert it between the first tray 201 and the top plate 103, so that the top plate 103 supports the first tray 201 through the cushion block 301, and then put the test piece into the first tray 201, and use the electronic analytical balance 4 to measure the original mass of the test piece in the air. Then put the test piece into the second tray 204, remove the cushion block 301 and place it on the electronic analytical balance 4, so that the top plate 103 directly supports the first tray 201, and the second tray 204 supports the test piece through the supporting net 205 under the suspension of the suspension rod 202 and the hanger 203 and immerses it in water, and the electronic analytical balance 4 measures the original mass of the test piece in water. Finally, after soaking the test piece for compatibility, wipe it dry and weigh it again according to the above steps. The electronic analytical balance 4 respectively measures the mass of the test piece in air and the mass in water after immersion, and calculates the experimental results.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A balance specific gravity device for similar compatibility experiments, comprising a support assembly for supporting a beaker (5) placed on an electronic analytical balance (4), characterized in that: It also includes a suspension assembly installed in the middle of the bracket assembly for placing the test piece in upper and lower partitions for variable weighing, a support assembly for raising the test piece out of the water for weighing is installed between the suspension assembly and the bracket assembly, and the suspension assembly and the support assembly are respectively connected to the bracket assembly by plugging and unplugging; The suspension assembly comprises a first tray (201), a suspension rod (202) is arranged at the bottom of the first tray (201), a hanger (203) is arranged at the bottom of the suspension rod (202), a second tray (204) is arranged at the bottom of the hanger (203), and a supporting net (205) is arranged at the bottom of the second tray (204); The support assembly comprises a cushion block (301), a second avoidance groove (302) is arranged on one side of the cushion block (301), and anti-slip grooves (303) are respectively arranged on the upper and lower end surfaces of the cushion block (301).

2. A balance specific gravity device for similar compatibility experiment according to claim 1, characterized in that: The support assembly comprises a bottom plate (101), two columns (102) are symmetrically arranged at both ends of the bottom plate (101), a top plate (103) is installed between the top ends of the columns (102), and a first avoidance groove (104) is arranged in the middle of the top plate (103).

3. A balance specific gravity device for similar compatibility experiment according to claim 2, characterized in that: The upright column (102) is welded to the bottom plate (101) and the top plate (103) respectively, and the first avoidance groove (104) and the second avoidance groove (302) are both U-shaped.

4. A balance specific gravity device for similar compatibility experiment according to claim 1, characterized in that: The depth of the first tray (201) and the second tray (204) is 1 cm.

5. The balance specific gravity device for similar compatibility experiment according to claim 1, characterized in that: The suspension rod (202) is cylindrical and has a length of 12 cm.

6. A balance specific gravity device for similar compatibility experiment according to claim 1, characterized in that: The cushion block (301) is made of natural rubber material, is cylindrical in shape, and has a height of 10 cm.

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