CN214531132U

CN214531132U - Movable box type water quality detection laboratory

Info

Publication number: CN214531132U
Application number: CN202120341249.4U
Authority: CN
Inventors: 张翠英; 康佳琪; 范海霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-29
Anticipated expiration: 2031-02-07

Abstract

The application discloses portable box water quality testing laboratory, including bottom plate, universal wheel, laboratory main part, ventilation blower, drum, ventilation blower, motor, axis of rotation, screw rod, nut one, backup pad, U type frame, T type guide arm, square, spring one, slider, L type groove, toper piece, spring two, fastening bolt, solid fixed ring, threaded rod, screw thread section of thick bamboo, reset spring, T type piece, fixture block, draw-in groove, magnetic ring and spring three. This application promotes the drum downwards, the drum removes and drives the slider and remove to erecting the groove end, rotate the drum after that, the drum rotates and drives the slider and remove and get into the cross slot inside, when toper piece one end aligns with the spacing groove, toper piece one end removes under the effect of two elastic forces of spring and gets into the spacing inslot, twist and move fastening bolt, fastening bolt removes along nut two, fastening bolt removes and drives toper piece and removes and get into the spacing inslot completely, and then with the slider joint in L type inslot portion, accomplish the installation of drum.

Description

Movable box type water quality detection laboratory

Technical Field

The application relates to a water quality testing laboratory, in particular to a movable box type water quality testing laboratory.

Background

Water is a source of life, people can not leave water in life and production activities, and the quality of drinking water is closely related to the health of people. With the development of social economy, scientific progress and improvement of the living standard of people, the requirements of people on the water quality of drinking water are continuously improved, and the water quality standard of the drinking water is correspondingly continuously developed and improved. Because the formulation of the water quality standard of the drinking water is related to various factors such as living habits, cultures, economic conditions, scientific and technical development level, water resources and the current situation of the water quality of the water resources, and the like of people, the requirements on the water quality of the drinking water are different not only among countries but also among different regions of the same country.

There is certain defect in the water quality testing laboratory that the tradition used, lacks supporting mechanism, causes inconveniently to support the bottom plate, has reduced the stability of bottom plate, lacks coupling mechanism simultaneously, causes inconveniently to install drum and filter screen on the ventilation blower annular side, lacks installation mechanism, causes inconveniently to carry out convenient change to the filter screen. Therefore, a movable box type water quality detection laboratory is provided for the problems.

SUMMERY OF THE UTILITY MODEL

A movable box type water quality detection laboratory comprises a bottom plate, universal wheels, a laboratory main body, a ventilator, a cylinder, a filter screen, a supporting mechanism, a connecting mechanism and an installation mechanism, wherein the laboratory main body is fixedly installed at the top end of the bottom plate, the ventilator is fixedly installed at the top end of the laboratory main body, the cylinder is installed on the annular side surface of the ventilator, the filter screen is installed inside the cylinder, and more than two universal wheels are uniformly installed at the bottom end of the bottom plate;

the supporting mechanism comprises a motor, a rotating shaft, a screw rod, a first nut, a supporting plate and a U-shaped frame, wherein the two U-shaped frames are symmetrically and fixedly installed at the bottom end of the bottom plate, the two motors are symmetrically and fixedly installed at the top end of the bottom plate, the two rotating shafts are symmetrically and rotatably installed at the bottom end of the bottom plate, the top ends of the rotating shafts are fixedly connected with the motors, the screw rod is installed at the bottom end of each rotating shaft, the top end of the screw rod extends into the rotating shaft, the bottom end of the screw rod penetrates through the U-shaped frame, the supporting plate is rotatably installed on the lower side of the annular side face of the screw rod, the first nut is installed on the annular side face of the screw rod, and the outer side of the first nut is fixedly installed in the U-shaped frame;

the connecting mechanism comprises sliding blocks, L-shaped grooves, conical blocks, a second spring and fastening bolts, the two sliding blocks are symmetrically and fixedly installed in the cylinder, the two L-shaped grooves are symmetrically formed in the annular side surface of the ventilator, the sliding blocks are installed in the L-shaped grooves, the two fastening bolts are symmetrically installed on the annular side surface of the cylinder, the second spring is fixedly installed at the inner end of the sliding block, the conical block is fixedly installed at one end of the second spring, one end of the conical block extends into the L-shaped grooves, and one end of each fastening bolt penetrates through the cylinder and the sliding blocks to be aligned with the conical blocks;

installation mechanism includes solid fixed ring, threaded rod, a thread section of thick bamboo and reset spring, the inside fixed mounting of drum has solid fixed ring, two threaded rods of solid fixed ring top symmetry fixed mounting, install reset spring and filter screen on the threaded rod annular side, the reset spring both ends are laminated with solid fixed ring and filter screen respectively mutually, a thread section of thick bamboo is installed to threaded rod annular side upside, thread section of thick bamboo bottom is laminated with the filter screen mutually.

Furthermore, two T-shaped guide rods are symmetrically and fixedly mounted at the top end of the supporting plate, and the top ends of the T-shaped guide rods penetrate through the U-shaped frame and extend into the U-shaped frame.

Further, screw rod top fixed mounting has the square, the square groove has been seted up to axis of rotation inside, and the square is installed inside the square groove, square top fixed mounting has spring one, and a spring top fixed mounting is on the inside top of square groove.

Furthermore, a second nut is installed on the annular side face of the fastening bolt, and the outer side of the second nut is fixedly installed inside the cylinder.

Furthermore, the L-shaped groove is composed of a vertical groove and a transverse groove, the two vertical grooves and the two transverse grooves are symmetrically formed in the annular side face of the ventilator, and one end of each vertical groove is communicated with the corresponding transverse groove.

Furthermore, the connecting mechanisms are provided with two groups, the two groups of connecting mechanisms are identical in structure, and the two groups of connecting mechanisms are symmetrically arranged on the annular side face of the cylinder.

Furthermore, a limiting groove is formed in the transverse groove of the L-shaped groove, and the size of the cross section of the limiting groove is the same as that of the cross section of the two ends of the spring fixedly installed on the conical block.

Further, threaded barrel top slidable mounting has T type piece, inside T type piece bottom extended to threaded barrel, and T type piece bottom fixed mounting has a fixture block, the draw-in groove has been seted up on the threaded rod top, the size of fixture block cross section is the same with the size of draw-in groove cross section.

Furthermore, a third spring is installed on the annular side face of the T-shaped block, and two ends of the third spring are fixedly installed on the T-shaped block and the top end of the threaded cylinder respectively.

Furthermore, a magnetic ring is fixedly installed at the top end inside the threaded cylinder, and the magnetic ring is fixedly installed on the outer side of the annular side face of the T-shaped block.

The beneficial effect of this application is: the application provides a portable box water quality testing laboratory with convenient support jack-up bottom plate, convenient installation drum and convenient dismouting filter screen function.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is a schematic structural view of a support mechanism according to an embodiment of the present application;

FIG. 3 is a schematic view of a coupling mechanism according to an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of one embodiment of the present application at A;

FIG. 5 is a schematic view of an L-shaped groove and a slider structure according to an embodiment of the present application;

fig. 6 is a schematic perspective view of a conical block according to an embodiment of the present application.

In the figure: 1. the device comprises a bottom plate, 2, universal wheels, 3, a laboratory body, 4, a ventilator, 5, a cylinder, 6, a ventilator, 7, a motor, 8, a rotating shaft, 9, a screw rod, 10, a first nut, 11, a supporting plate, 12, a U-shaped frame, 13, a T-shaped guide rod, 14, a square block, 15, a first spring, 16, a sliding block, 17, an L-shaped groove, 18, a conical block, 19, a second spring, 20, a fastening bolt, 21, a fixing ring, 22, a threaded rod, 23, a threaded cylinder, 24, a return spring, 25, a T-shaped block, 26, a clamping block, 27, a clamping groove, 28, a magnetic ring, 29 and a third spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a mobile box-type water quality testing laboratory is characterized in that: the device comprises a bottom plate 1, universal wheels 2, a laboratory main body 3, a ventilator 4, a cylinder 5, a filter screen 6, a supporting mechanism, a connecting mechanism and an installing mechanism, wherein the laboratory main body 3 is fixedly installed at the top end of the bottom plate 1, the ventilator 4 is fixedly installed at the top end of the laboratory main body 3, the cylinder 5 is installed on the annular side surface of the ventilator 4, the filter screen 6 is installed inside the cylinder 5, and more than two universal wheels 2 are uniformly installed at the bottom end of the bottom plate 1;

the supporting mechanism comprises a motor 7, a rotating shaft 8, a screw rod 9, a first nut 10, a supporting plate 11 and a U-shaped frame 12, wherein the two U-shaped frames 12 are symmetrically and fixedly installed at the bottom end of the bottom plate 1, the two motors 7 are symmetrically and fixedly installed at the top end of the bottom plate 1, the two rotating shafts 8 are symmetrically and rotatably installed at the bottom end of the bottom plate 1, the top end of each rotating shaft 8 is fixedly connected with the motor 7, the screw rod 9 is installed at the bottom end of each rotating shaft 8, the top end of each screw rod 9 extends into the corresponding rotating shaft 8, the bottom end of each screw rod 9 penetrates through the U-shaped frame 12, the supporting plate 11 is rotatably installed at the lower side of the annular side face of each screw rod 9, the first nut 10 is installed on the annular side face of each screw rod 9, the outer side of the first nut 10 is fixedly installed inside the U-shaped frame 12, a user starts the motors 7, the rotating shafts 8 rotate through square grooves and the square blocks 14 to drive the screw rods 9 to rotate, the screw 9 rotates to move along the first nut 10, the screw 9 moves to drive the supporting plate 11 to move, so that the supporting plate 11 moves to be attached to the ground, the bottom plate 1 is jacked up, and the universal wheel 2 is separated from the ground;

the connecting mechanism comprises a sliding block 16, an L-shaped groove 17, a conical block 18, a second spring 19 and fastening bolts 20, the two sliding blocks 16 are symmetrically and fixedly installed inside the cylinder 5, the two L-shaped grooves 17 are symmetrically formed in the annular side surface of the ventilator 4, the sliding block 16 is installed inside the L-shaped groove 17, the two fastening bolts 20 are symmetrically installed on the annular side surface of the cylinder 5, the second spring 19 is fixedly installed at the inner end of the sliding block 16, the conical block 18 is fixedly installed at one end of the second spring 19, one end of the conical block 18 extends into the L-shaped groove 17, one end of each fastening bolt 20 penetrates through the cylinder 5 and the sliding block 16 to be aligned with the conical block 18, a user installs the cylinder 5 on the annular side surface of the ventilator 4, installs the sliding block 16 inside a vertical groove, extrudes the conical block 18 inside the vertical groove, enables the conical block 18 to move to the inside of the sliding block 16 and extrudes the second spring 19, the cylinder 5 is pushed downwards, the cylinder 5 moves to drive the sliding block 16 to move to the end of the vertical groove, then the cylinder 5 is rotated, the cylinder 5 rotates to drive the sliding block 16 to move into the transverse groove, when one end of the conical block 18 is aligned with the limiting groove, one end of the conical block 18 moves into the limiting groove under the action of the elastic force of the second spring 19, the fastening bolt 20 is screwed, the fastening bolt 20 moves along the second nut, the fastening bolt 20 moves to drive the conical block 18 to move completely into the limiting groove, and then the sliding block 16 is clamped in the L-shaped groove 17 to complete installation of the cylinder 5;

the installation mechanism comprises a fixing ring 21, a threaded rod 22, a threaded cylinder 23 and a return spring 24, the fixing ring 21 is fixedly installed inside the cylinder 5, the two threaded rods 22 are symmetrically and fixedly installed at the top end of the fixing ring 21, the return spring 24 and the filter screen 6 are installed on the annular side surface of the threaded rod 22, two ends of the return spring 24 are respectively attached to the fixing ring 21 and the filter screen 6, the threaded cylinder 23 is installed on the upper side of the annular side surface of the threaded rod 22, the bottom end of the threaded cylinder 23 is attached to the filter screen 6, the T-shaped block 25 is pulled, the T-shaped block 25 moves to drive the square block 14 to move to be attached to the magnetic ring 28 in an adsorption mode, the T-shaped block 25 moves to stretch the spring III 29, the elasticity of the spring III 29 is smaller than the adsorption force between the magnetic ring 28 and the square block 14, the positions of the T-shaped block 25 and the square block 14 are further fixed, and the filter screen 6 is installed on the annular side surface of the threaded rod 22, install a screw thread section of thick bamboo 23 on threaded rod 22, through twisting screw thread section of thick bamboo 23, screw thread section of thick bamboo 23 removes along threaded rod 22, screw thread section of thick bamboo 23 removes and drives filter screen 6 and remove and extrude reset spring 24, reset spring 24's elasticity is convenient for popping out of filter screen 6, when filter screen 6 accomplishes the installation, make square 14 and square groove align through fine setting screw thread section of thick bamboo 23, promote T type piece 25 downwards, T type piece 25 removes and drives square 14 and remove and separate with magnetic ring 28, T type piece 25 removes under the effect of spring three 29 elasticity and drives square 14 and remove and get into the square inslot portion, and then the position of fixed screw thread section of thick bamboo 23.

Two T-shaped guide rods 13 are symmetrically and fixedly installed at the top end of the supporting plate 11, and the top ends of the T-shaped guide rods 13 penetrate through the U-shaped frame 12 and extend into the U-shaped frame 12; a square block 14 is fixedly installed at the top end of the screw rod 9, a square groove is formed in the rotating shaft 8, the square block 14 is installed in the square groove, a first spring 15 is fixedly installed at the top end of the square block 14, and the top end of the first spring 15 is fixedly installed at the top end of the square groove; a second nut is arranged on the annular side surface of the fastening bolt 20, and the outer side of the second nut is fixedly arranged in the cylinder 5; the L-shaped groove 17 consists of a vertical groove and a transverse groove, two vertical grooves and two transverse grooves are symmetrically formed in the annular side surface of the ventilator 4, and one end of each vertical groove is communicated with one transverse groove; the two groups of connecting mechanisms are same in structure and are symmetrically arranged on the annular side surface of the cylinder 5; a limiting groove is formed in the transverse groove of the L-shaped groove 17, and the size of the cross section of the limiting groove is the same as that of the cross section of one end of the conical block 18, at which the second spring 19 is fixedly arranged; the top end of the threaded cylinder 23 is slidably provided with a T-shaped block 25, the bottom end of the T-shaped block 25 extends into the threaded cylinder 23, the bottom end of the T-shaped block 25 is fixedly provided with a clamping block 26, the top end of the threaded rod 22 is provided with a clamping groove 27, and the size of the cross section of the clamping block 26 is the same as that of the cross section of the clamping groove 27; a third spring 29 is arranged on the annular side surface of the T-shaped block 25, and two ends of the third spring 29 are fixedly arranged on the T-shaped block 25 and the top end of the threaded cylinder 23 respectively; the top end of the interior of the threaded cylinder 23 is fixedly provided with a magnetic ring 28, and the magnetic ring 28 is fixedly arranged on the outer side of the annular side surface of the T-shaped block 25.

This application is when using, and 7 work of motor drive axis of rotation 8 rotates, and axis of rotation 8 rotates and drives screw rod 9 through square groove and square 14 and rotate, and screw rod 9 rotates and removes along nut 10, and screw rod 9 removes and drives backup pad 11 and remove for backup pad 11 removes and the ground laminating, and then with bottom plate 1 jack-up, makes universal wheel 2 and ground separation.

Promote drum 5 downwards, drum 5 removes and drives slider 16 and remove to erecting the groove end, rotate drum 5 after that, drum 5 rotates and drives slider 16 and remove and get into the transverse groove inside, when 18 one end of toper piece align with the spacing groove, 18 one end of toper piece removes and gets into the spacing inslot under the effect of two 19 spring forces of spring, twist and move fastening bolt 20, fastening bolt 20 removes along two nuts, fastening bolt 20 removes and drives toper piece 18 and remove and get into the spacing inslot completely, and then inside the L type groove 17 with the 16 joints of slider, accomplish the installation of drum 5.

Screw thread section of thick bamboo 23, screw thread section of thick bamboo 23 removes along threaded rod 22, screw thread section of thick bamboo 23 removes and drives filter screen 6 and remove and extrude reset spring 24, reset spring 24's elasticity is convenient for pop out of filter screen 6, when filter screen 6 accomplished the installation, make square 14 and square groove align through fine setting screw thread section of thick bamboo 23, promote T type piece 25 downwards, T type piece 25 removes and drives square 14 and remove and separate with magnetic ring 28, T type piece 25 removes under the effect of spring three 29 elasticity and drives square 14 and remove and get into the square inslot portion, and then the position of fixed screw thread section of thick bamboo 23.

The application has the advantages that:

1. the motor work drives the axis of rotation and rotates, and the axis of rotation rotates and drives the screw rod through square groove and square and rotates, and the screw rod rotates and removes along nut one, and the screw rod removes and drives the backup pad and remove for the backup pad removes and laminates with ground, and then with bottom plate jack-up, makes universal wheel and ground separation, has solved and has lacked supporting mechanism, causes inconvenient supporting to the bottom plate, has reduced the problem of bottom plate stability.

2. Promote the drum downwards, the drum removes and drives the slider and remove to the vertical trough end, rotate the drum after that, the drum rotates and drives the slider and remove and get into the cross slot inside, when toper piece one end aligns with the spacing groove, toper piece one end is removed and is got into the spacing inslot under the effect of two elastic forces of spring, twist and move fastening bolt, fastening bolt removes and drives toper piece and remove and get into the spacing inslot completely, and then with the slider joint in L type inslot portion, accomplish the installation of drum, the problem of lacking coupling mechanism has been solved, cause inconvenient drawback of installing drum and filter screen on the ventilation blower annular side.

3. Twist and move a screw thread section of thick bamboo, a screw thread section of thick bamboo removes along the threaded rod, a screw thread section of thick bamboo removes and drives the filter screen and remove and extrude reset spring, reset spring's elasticity is convenient for pop out of filter screen, when the installation is accomplished to the filter screen, make the square align with the square groove through fine setting screw thread section of thick bamboo, promote T type piece downwards, T type piece removes and drives the square piece and remove and separate with the magnetic ring, T type piece removes under the effect of three elastic forces of spring and drives the square piece and remove and get into the square inslot portion, and then the position of a fixed thread section of thick bamboo, the problem of lacking installation mechanism has been solved, cause the inconvenient drawback of carrying out convenient change to the filter screen.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a portable box water quality testing laboratory which characterized in that: the device comprises a bottom plate (1), universal wheels (2), a laboratory main body (3), a ventilator (4), a cylinder (5), a filter screen (6), a supporting mechanism, a connecting mechanism and an installing mechanism, wherein the laboratory main body (3) is fixedly installed at the top end of the bottom plate (1), the ventilator (4) is fixedly installed at the top end of the laboratory main body (3), the cylinder (5) is installed on the annular side surface of the ventilator (4), the filter screen (6) is installed inside the cylinder (5), and more than two universal wheels (2) are uniformly installed at the bottom end of the bottom plate (1);

the supporting mechanism comprises a motor (7), a rotating shaft (8), a screw rod (9), a first nut (10), a supporting plate (11) and a U-shaped frame (12), two U-shaped frames (12) are symmetrically and fixedly arranged at the bottom end of the bottom plate (1), two motors (7) are symmetrically and fixedly arranged at the top end of the bottom plate (1), two rotating shafts (8) are symmetrically and rotatably arranged at the bottom end of the bottom plate (1), the top end of the rotating shaft (8) is fixedly connected with the motor (7), the bottom end of the rotating shaft (8) is provided with a screw rod (9), the top end of the screw rod (9) extends into the rotating shaft (8), the bottom end of the screw rod (9) penetrates through the U-shaped frame (12), a supporting plate (11) is rotatably arranged on the lower side of the annular side face of the screw rod (9), a first nut (10) is arranged on the annular side face of the screw rod (9), and the outer side of the first nut (10) is fixedly arranged in the U-shaped frame (12);

the connecting mechanism comprises a sliding block (16), an L-shaped groove (17), a conical block (18), a second spring (19) and fastening bolts (20), the two sliding blocks (16) are symmetrically and fixedly installed inside the cylinder (5), the two L-shaped grooves (17) are symmetrically formed in the annular side surface of the ventilator (4), the sliding blocks (16) are installed inside the L-shaped groove (17), the two fastening bolts (20) are symmetrically installed on the annular side surface of the cylinder (5), the second spring (19) is fixedly installed at the inner end of the sliding block (16), the conical block (18) is fixedly installed at one end of the second spring (19), one end of the conical block (18) extends into the L-shaped groove (17), and one end of each fastening bolt (20) penetrates through the cylinder (5) and the sliding block (16) to be aligned with the conical block (18);

installation mechanism includes solid fixed ring (21), threaded rod (22), a screw thread section of thick bamboo (23) and reset spring (24), drum (5) inside fixed mounting has solid fixed ring (21), gu two threaded rods (22) of fixed ring (21) top symmetry fixed mounting, install reset spring (24) and filter screen (6) on threaded rod (22) the annular side, reset spring (24) both ends are laminated with solid fixed ring (21) and filter screen (6) respectively mutually, threaded rod (22) annular side upside is installed a screw thread section of thick bamboo (23), screw thread section of thick bamboo (23) bottom is laminated with filter screen (6) mutually.

2. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: two T-shaped guide rods (13) are symmetrically and fixedly mounted at the top end of the supporting plate (11), and the top ends of the T-shaped guide rods (13) penetrate through the U-shaped frame (12) and extend into the U-shaped frame (12).

3. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: screw rod (9) top fixed mounting has square (14), the square groove has been seted up to axis of rotation (8) inside, and square (14) install inside the square groove, square (14) top fixed mounting has spring (15), and spring (15) top fixed mounting is on the inside top of square groove.

4. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: and a second nut is arranged on the annular side surface of the fastening bolt (20), and the outer side of the nut is fixedly arranged in the cylinder (5).

5. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: l type groove (17) comprise perpendicular groove and horizontal slot, two are erected the groove and two horizontal slots on ventilator (4) annular side, erect groove one end and horizontal slot and communicate with each other.

6. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: the connecting mechanisms are arranged in two groups, the two groups of connecting mechanisms have the same structure, and the two groups of connecting mechanisms are symmetrically arranged on the annular side surface of the cylinder (5).

7. The mobile box-type water quality detection laboratory according to claim 5, characterized in that: a limiting groove is formed in the transverse groove of the L-shaped groove (17), and the size of the cross section of the limiting groove is the same as that of the cross section of one end of the conical block (18) where the second spring (19) is fixedly installed.

8. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: threaded cylinder (23) top slidable mounting has T type piece (25), inside T type piece (25) bottom extended to threaded cylinder (23), and T type piece (25) bottom fixed mounting has fixture block (26), draw-in groove (27) have been seted up on threaded rod (22) top, the size of fixture block (26) cross section is the same with the size of draw-in groove (27) cross section.

9. The portable box-type water quality testing laboratory of claim 8, characterized in that: and a third spring (29) is arranged on the annular side surface of the T-shaped block (25), and two ends of the third spring (29) are respectively and fixedly arranged on the T-shaped block (25) and the top end of the threaded cylinder (23).

10. The mobile box-type water quality detection laboratory according to claim 1, characterized in that: the top end of the interior of the threaded cylinder (23) is fixedly provided with a magnetic ring (28), and the magnetic ring (28) is fixedly arranged on the outer side of the annular side face of the T-shaped block (25).