Adjustable chemical experiment test tube rack

Abstract

The utility model provides an adjustable chemical experiment test tube stand, which relates to the technical field of chemical experiment appliances, and comprises a test tube stand platform, a telescopic sleeve is fixedly connected above the test tube stand platform, a telescopic support column is tightly and movably inserted into the telescopic sleeve, the upper end of the telescopic support column is fixedly connected with an adjusting block, and the adjusting block is fixedly connected with the test tube stand platform. The position of a clamping plate pull frame is adjusted through a clamping control rotary rod, a second clamping plate is controlled to move front and back, a test tube is clamped through cooperation with a first clamping plate, the test tube is clamped and fixed in four directions through the second clamping plate and the first clamping plate which are of a V-shaped structure, and the test tube is prevented from shaking; meanwhile, the clamping structure can stably clamp the test tubes with different outer diameters, the application range is wide, and the problems that for the test tubes with different tube diameters, a clamping structure of a traditional test tube rack cannot adapt to clamping of the test tubes with different tube diameters, and the clamping structure cannot be flexibly adjusted to adapt to the test tubes with different tube diameters are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical experiment instrument technical field especially, relates to a kind of adjustable chemical experiment test tube rack. BACKGROUND

[0002] Chemical experiment has irreplaceable effect in junior high school chemistry learning, it not only can help student to understand chemical principle intuitively, cultivate experimental skill and hands-on ability, also can stimulate student's interest in learning and curiosity, therefore, in junior high school chemistry teaching, should pay full attention to the teaching and development of chemical experiment, in junior high school chemistry learning, charcoal reduction copper oxide, potassium permanganate preparation oxygen, carbon monoxide reduction copper oxide etc. Experiment all need to use alcohol lamp to heat the experimental material in test tube to complete, it needs to use test tube rack to hold test tube.

[0003] In traditional chemical experiment test tube rack, test tube rack cannot flexibly adjust the height and inclination of test tube according to experimental requirements, which affects experimental results, and for test tubes of different pipe diameters, the clamping structure of traditional test tube rack cannot adapt to the clamping of test tubes of multiple different pipe diameters, and cannot flexibly adjust the clamping structure to adapt to test tubes of different pipe diameters. SUMMARY

[0004] The disclosed embodiment relates to a kind of adjustable chemical experiment test tube rack, to solve the problem that in traditional chemical experiment test tube rack, test tube rack cannot flexibly adjust the height and inclination of test tube according to experimental requirements, which affects experimental results, and for test tubes of different pipe diameters, the clamping structure of traditional test tube rack cannot adapt to the clamping of test tubes of multiple different pipe diameters, and cannot flexibly adjust the clamping structure to adapt to test tubes of different pipe diameters.

[0005] The first aspect of the present disclosure provides an adjustable chemical experiment test tube rack, specifically comprising: a test tube rack table, a telescopic sleeve is fixedly connected above the test tube rack table, a telescopic support is movably inserted into the telescopic sleeve, an adjusting block is fixedly connected to the upper end of the telescopic support, an angle adjusting insertion hole is formed through the adjusting block, a clamping plate connecting rod is rotatably connected in the angle adjusting insertion hole, an insertion hole guide is formed through the clamping plate connecting rod, a first clamping plate is fixedly connected to the front end of the clamping plate connecting rod, a second clamping plate is arranged in front of the first clamping plate, a "U"-shaped clamping plate pull frame is fixedly connected to the rear of the second clamping plate, the clamping plate pull frame is slidably connected in the insertion hole guide, a pull frame screw hole is formed in the center of the clamping plate pull frame, a clamping control rotating rod is rotatably connected inside the clamping plate connecting rod, the front end of the clamping control rotating rod is located inside the insertion hole guide, a rotating rod screw is formed on the part of the clamping control rotating rod located inside the insertion hole guide, and the rotating rod screw is screw-connected with the pull frame screw hole.

[0006] In at least some embodiments, the upper end of the adjusting block is vertically provided with a vertical lock hole of a circular hole structure, and the lower end of the vertical lock hole is communicated with an angle adjusting insertion hole.

[0007] In at least some embodiments, a fixed lock rod is slidably connected inside the vertical lock hole, a lock rod tension spring is sleeved on the fixed lock rod, and a lock rod pull plate is fixedly connected to the upper end of the fixed lock rod.

[0008] In at least some embodiments, the upper end of the lock rod tension spring is fixedly connected to the lock rod pull plate, the lower end of the lock rod tension spring is fixedly connected to the upper surface of the adjusting block, the lower end surface of the fixed lock rod is in an arc structure, and the lower end arc surface of the fixed lock rod is tightly fitted with the outer surface of the clamping plate connecting rod.

[0009] In at least some embodiments, the first clamping plate is a "V"-shaped folding plate with a folding plate included angle of ninety degrees, and the opening of the first clamping plate faces forward.

[0010] In at least some embodiments, the second clamping plate is a "V"-shaped folding plate with a folding plate included angle of ninety degrees, and the opening of the second clamping plate faces backward.

[0011] The utility model provides a kind of adjustable chemical experiment test tube rack, with following beneficial effects:

[0012] The chemical experiment test tube rack in the utility model is specially used for clamping and fixing test tubes in chemical experiment process. During clamping of test tubes, the test tubes are located between the second clamping plate and the first clamping plate. The position of the clamping plate pull frame is adjusted by clamping control rotary rod, and the second clamping plate is controlled to move forward and backward. The test tubes are clamped by the first clamping plate. The test tubes are clamped and fixed from four directions by the "V"-shaped second clamping plate and the first clamping plate. The test tubes are prevented from shaking. The clamping structure can stably clamp test tubes with different outer diameters, and has wide application range.

[0013] In addition, the utility model is provided with an inclination adjusting structure of test tube. The inclination of test tube can be adjusted by rotating the clamping plate connecting rod. The inclination of test tube can be adjusted according to different types of test requirements. The clamping height of test tube can be adjusted by tightly slidably connecting the telescopic sleeve and the telescopic support column. The heating position is located above alcohol lamp flame, and the heating efficiency of experimental materials in test tube is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the utility model, and are not limited to the utility model.

[0016] In the drawings:

[0017] Figure 1The schematic diagram showing the overall structure of the present application is shown.

[0018] Figure 2 The schematic diagram showing the structure of the present application in the idle state is shown.

[0019] Figure 3 The schematic diagram showing the structure of the telescopic support of the present application is shown.

[0020] Figure 4 The schematic diagram showing the structure of the clamping control rotary lever of the present application is shown.

[0021] Figure 5 The schematic diagram showing the structure of the connecting rod guide of the present application is shown.

[0022] Figure 6 The schematic diagram showing the structure of the fixed lock lever of the present application is shown.

[0023] List of reference signs

[0024] 1, test tube rack table; 101, telescopic sleeve; 2, telescopic support; 3, adjusting block; 301, angle adjusting hole; 302, vertical lock hole; 4, fixed lock lever; 401, lock lever tension spring; 402, lock lever tension plate; 5, clamping plate connecting rod; 501, connecting rod guide; 502, first clamping plate; 6, second clamping plate; 601, clamping plate tension frame; 602, tension frame screw push hole; 7, clamping control rotary lever; 701, rotary lever screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Embodiment one: please refer to Figures 1 to 6 :

[0027] The utility model provides a kind of adjustable chemical experiment test tube rack, comprising: test tube rack table 1, test tube rack table 1 upper fixedly connected with telescopic sleeve 101, telescopic sleeve 101 is closely movable and is inserted with telescopic support 2, the height of adjusting block 3 can be controlled by the close sliding connection of telescopic sleeve 101 and telescopic support 2, the clamping height of test tube can be adjusted, so that heating position is located above alcohol lamp flame, guarantee the heating efficiency of experimental material in test tube, the upper end of telescopic support 2 is fixedly connected with adjusting block 3, angle adjusting insertion hole 301 is penetrated in front and back of adjusting block 3, clamping plate connecting rod 5 is rotatably connected in angle adjusting insertion hole 301, clamping plate connecting rod 5 is penetrated and is provided with connecting rod guide 501, the front end of clamping plate connecting rod 5 is fixedly connected with first clamping plate 502, second clamping plate 6 is equipped in front of first clamping plate 502, the rear of second clamping plate 6 is fixedly connected with the clamping plate pull frame 601 of "U" shape structure, clamping plate pull frame 601 is slidably connected in connecting rod guide 501, clamping plate pull frame 601 center is provided with pull frame screw hole 602, clamping control rotary rod 7 is rotatably connected in clamping plate connecting rod 5, the front end of clamping control rotary rod 7 is located in connecting rod guide 501, the part of clamping control rotary rod 7 in connecting rod guide 501 is provided with rotary rod screw 701, and rotary rod screw 701 is spirally connected with pull frame screw hole 602;When rotating clamping control rotary rod 7, the spiral connection of rotary rod screw 701 and pull frame screw hole 602 can control clamping plate pull frame 601 to move in connecting rod guide 501, to further control the distance between first clamping plate 502 and second clamping plate 6, realize the clamping control to test tube, first clamping plate 502 is the folding plate of "V" shape structure, folding plate clamping angle is ninety degrees, the opening of first clamping plate 502 faces forward, second clamping plate 6 is the folding plate of "V" shape structure, folding plate clamping angle is ninety degrees, and the opening of second clamping plate 6 faces backward, through the second clamping plate 6 of "V" shape structure and first clamping plate 502, test tube is clamped and fixed from four directions, avoid test tube to shake, and simultaneously this clamping structure can be firmly clamped to the test tube of different outer diameter, and use is more flexible.

[0028] In the embodiment of the present disclosure, the upper end of the adjusting block 3 is vertically provided with a vertical lock hole 302 of a circular hole structure, the lower end of the vertical lock hole 302 is communicated with the angle adjusting insertion hole 301, the clamping plate connecting rod 5 is slidably connected with the angle adjusting insertion hole 301, the angle of the clamping plate connecting rod 5 and the test tube is adjusted, and the test tube is controlled to be inclined to adapt to different experimental conditions.

[0029] In the second embodiment, the fixed locking rod 4 is slidably connected inside the vertical locking hole 302, the locking rod tension spring 401 is sleeved on the fixed locking rod 4, and the upper end of the fixed locking rod 4 is fixedly connected with the locking rod pull plate 402; the upper end of the locking rod tension spring 401 is fixedly connected with the locking rod pull plate 402, the lower end of the locking rod tension spring 401 is fixedly connected with the upper surface of the adjusting block 3, the lower end surface of the fixed locking rod 4 is in an arc structure, and the lower end arc surface of the fixed locking rod 4 is tightly attached to the outer surface of the clamping plate connecting rod 5; in the normal state, the fixed locking rod 4 is pushed downward by the locking rod tension spring 401, the end of the fixed locking rod 4 is tightly attached to the clamping plate connecting rod 5 to achieve circumferential locking, when the inclination angle of the test tube needs to be adjusted, the fixed locking rod 4 is pulled upward to separate the clamping plate connecting rod 5 from the fixed locking rod 4, so that the clamping plate connecting rod 5 can rotate inside the angle adjusting insertion hole 301, after the test tube is inclined to the appropriate angle, the fixed locking rod 4 is released, and the fixed locking rod 4 is pushed downward again under the action of the locking rod tension spring 401 to tightly attach the clamping plate connecting rod 5, so that the inclination angle of the clamping plate connecting rod 5 and the test tube is fixed.

[0030] The working principle of the embodiment is as follows: first, the knob at the rear end of the clamping control rotating rod 7 is rotated, the distance between the first clamping plate 502 and the second clamping plate 6 is controlled by the screw connection between the rotating rod screw 701 and the tension frame screw push hole 602, the clamping plate tension frame 601 is moved inside the connecting rod guide opening 501, and then the test tube is inserted between the second clamping plate 6 and the first clamping plate 502 and pulled backward to achieve clamping of the test tube, when the inclination angle of the test tube needs to be adjusted, the fixed locking rod 4 is pulled upward to separate the clamping plate connecting rod 5 from the fixed locking rod 4, so that the clamping plate connecting rod 5 can rotate inside the angle adjusting insertion hole 301, after the test tube is inclined to the appropriate angle, the fixed locking rod 4 is released, and the fixed locking rod 4 is pushed downward again under the action of the locking rod tension spring 401 to tightly attach the clamping plate connecting rod 5, so that the inclination angle of the clamping plate connecting rod 5 and the test tube is fixed.

[0031] In this paper, the following points need attention:

[0032] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0033] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An adjustable chemical experiment test tube rack comprising: The utility model provides a test -tube rack platform (1), test -tube rack platform (1) top fixedly connected with telescopic sleeve (101), telescopic sleeve (101) tightly movable joint has telescopic support (2), the upper end of telescopic support (2) is fixedly connected with the adjusting block (3), its characterized in that, the adjusting block (3) is opened and passed through angle adjusting insertion hole (301) before and after, angle adjusting insertion hole (301) is rotatably connected with the clamping plate link (5) in, clamping plate link (5) is opened and passed through link guide (501), the front end of clamping plate link (5) is fixedly connected with first clamping plate (502), and the front of first clamping plate (502) is equipped with second clamping plate (6), the rear of second clamping plate (6) is fixedly connected with the clamping plate pull frame (601) of " U " structure, and clamping plate pull frame (601) is slidably connected in link guide (501), and the center of clamping plate pull frame (601) is opened and passed through pull frame screw hole (602), and clamping control rotary rod (7) is rotatably connected in clamping plate link (5), the front end of clamping control rotary rod (7) is located in link guide (501) inside, and the portion of clamping control rotary rod (7) in link guide (501) is opened and passed through rotary rod screw (701), and rotary rod screw (701) is screw connected with pull frame screw hole (602).

2. The adjustable chemical experiment test tube rack according to claim 1, wherein, the upper end of the adjusting block (3) is vertically provided with a vertical lock hole (302) of a circular hole structure, and the lower end of the vertical lock hole (302) is communicated with the angle adjusting insertion hole (301).

3. The adjustable chemical experiment test tube rack according to claim 2, wherein, the vertical lock hole (302) is slidably connected with a fixed lock rod (4) inside, the fixed lock rod (4) is sleeved with a lock rod tension spring (401), and the upper end of the fixed lock rod (4) is fixedly connected with a lock rod pull plate (402).

4. The adjustable chemical experiment test tube rack according to claim 3, wherein, the upper end of the lock rod tension spring (401) is fixedly connected with the lock rod pull plate (402), the lower end of the lock rod tension spring (401) is fixedly connected with the upper surface of the adjusting block (3), the lower end surface of the fixed lock rod (4) is in an arc structure, and the lower end arc surface of the fixed lock rod (4) is tightly attached to the outer surface of the clamping plate link (5).

5. The adjustable chemical experiment test tube rack according to claim 1, wherein, the first clamping plate (502) is a "V"-shaped folding plate with a folding angle of 90 degrees, and the opening of the first clamping plate (502) faces forward.

6. The adjustable chemical experiment test tube rack according to claim 1, wherein, the second clamping plate (6) is a "V"-shaped folding plate with a folding angle of 90 degrees, and the opening of the second clamping plate (6) faces backward.

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