RU2658268C1 - Modular construction set and laboratory modular unit for the physical phenomena studying - Google Patents

Abstract

FIELD: teaching.

SUBSTANCE: group of inventions relates to teaching aids, equipment for the experiments, and is aimed at enhancing of the construction set functionality, layout simplification, and usability improvement. Group represents the modular construction set and the laboratory modular unit as its main functional unit. Modular construction set contains working surfaces, central and side functional modules, brackets with grooves for the functional modules fixation, measuring means. Working surfaces are made in the form of mounting panel and at least two mounting profiles during the connection configured to form the mounting plate with longitudinal groove. Wherein on the working surfaces connecting sockets and / or slots for the brackets installation are made. Functional modules have coupling elements between each other and to the brackets and can be made I-shaped or T-shaped, or cross shaped. For the modules connection to each other, a stand with grooves and fastening means on the working surfaces can be used. Bracket may comprise longitudinal vertical protrusions on the end portion. Functional modules may be configured to conduct the electric current and / or contain elements of various equipment, for example, of the following types: cage, cuvette, inclined platform, trap, clamp, power sources installation compartment, console, pointer, contact, axis, reel-coil, key. Construction set laboratory modular unit contains at least one central and / or side functional brackets, and stand.

EFFECT: proposed is a modular construction set and laboratory modular unit for the physical phenomena studying.

27 cl, 14 dwg

Description

The group of inventions relates to teaching aids, educational games and can be used to assemble spatial structures during experiments and laboratory work, including the assembly of electrical circuits, technical devices and mechanisms used to study physical phenomena.

The group of inventions is a modular 3D designer of laboratory devices and installations of various thematic focus. The designer consists of multifunctional parts from which the elements of laboratory units and the units themselves can be assembled, in particular, the laboratory modular block of the designer as its element that carries the main functional load.

To date, there are a number of designers who solve problems close to the claimed invention, however, most of them are performed according to the “one part - one function” scheme, and also have limited spatial modeling capabilities.

The closest analogue is the well-known from the prior art educational and visual aid for the study of physical phenomena [Patent RU 2287861, publ. 11/20/2006, prior. dated 12/14/2004, G09B 23/06], comprising a mounting plate with connecting sockets including on its side faces, supports for installing modular units on which equipment elements are located. On the mounting panel, the stand is mounted using the wedges installed in its base.

In addition, the manual additionally contains a rack mounted on the mounting panel, and interacting with the rack by means of a slider plate with a longitudinal groove for the test object, a scale and connecting sockets located along the longitudinal groove on the side surface of the plate, while the slider is pivotally mounted on the end of the plate and installed with the ability to move around the rack.

Removable modular units have locking protrusions and are provided with electrical contacts located on the locking protrusions and / or side walls of the removable modular blocks.

The supports are rectangular and T-shaped and equipped with U-shaped brackets with grooves located on their sides, in which the fixing protrusions of the removable modular blocks are fixed.

As elements of equipment, various optical, electrical, radio engineering, and mechanical elements of equipment are used.

The manual allows you to solve many problems of modeling laboratory installations and devices, but can be modified in order to increase its functionality. In particular, the implementation of the stand and the bracket as a whole limits the use of the stand only for functional blocks of standard size and configuration, does not allow using the bracket as a separate element of the manual, for example, for self-installation on various surfaces. When installing the central functional module in the niche formed by the brackets, the module can rotate (swing) relative to the stand (backlash).

The task to which the group of inventions is directed is the development of a system of multifunctional devices, the parts of which are maximally unified, which, in addition to expanding the possibilities of using the designer, will simplify and reduce the cost of its production.

Block-modular layout provides interchangeability due to standardization, unification and detachable connection of parts among themselves. In addition, ease of use is achieved due to variability and reduced time spent on the assembly-disassembly of designer elements. The versatility of individual parts of the designer ensures its compactness, that is, it allows you to have fewer, for example, supports for installing the necessary modules on them, as well as the ability to use the same parts in different versions.

Thus, the technical result of the claimed group of inventions mainly involves the expansion of functionality, as well as simplifying the layout of equipment items and also improving the usability of the designer.

The designer is a combination of functional parts of various kinds and work surfaces, and the installation of most parts on work surfaces is carried out both directly and through the formation of a laboratory modular unit.

The inventive modular constructor for the study of physical phenomena contains:

- central and lateral functional modules with elements of interfacing with each other and with brackets, made I-shaped or T-shaped or cross-shaped,

- brackets in the form of a profile consisting of one end and two side surfaces with grooves for fixing the functional modules,

- work surfaces in the form of a mounting plate and at least one mounting profile,

- moreover, the brackets are made with the possibility of self-installation on the working surface through the side surfaces of the bracket,

- and on the working surfaces are made connecting sockets and / or slots for mounting brackets.

By connecting the mounting profiles, a mounting plate can be formed, preferably with a longitudinal groove. The use of a mounting plate in combination with other elements allows the formation of many structures for measuring, for example, the speed or acceleration of bodies.

In addition, the designer contains measuring instruments — protractors, calculators, and others.

To connect the modules and brackets into blocks, the designer may include a stand with grooves for mounting the bracket (the bracket in this case has locking protrusions) made of I-shaped, T-shaped or cross-shaped. At its base, fastening means on working surfaces are made, for example, removable pins. On the end part of the bracket, longitudinal vertical protrusions can be made for better fixation. The interface elements of the functional modules are configured to transmit electric current, which allows the use of a wide range of equipment in the modules.

To solve various problems with the help of designer elements, the following functional modules with equipment elements can be used:

- a functional module containing an element for transmitting electric current and fixing the conductors,

- a functional module in the form of a hollow cylinder with a through window for inserting items of equipment,

- a functional module containing a cuvette,

- a functional module with a platform for built-in or removable items of equipment,

- a functional module containing elements for stopping the ball,

- a functional module containing a clip,

- a functional module containing a compartment for installing a power source,

- a functional module comprising a console with a mounting element mounting plate,

- a functional module with an element for fixing measuring instruments,

- a functional module containing an axis for installing devices,

- a functional module containing an electromagnet with a rotary bracket,

- a functional module containing a key,

- a functional module containing a frame.

Laboratory modular designer block, contains:

- at least one central and / or lateral functional module with mating elements with brackets and between them, made I-shaped or T-shaped or cross-shaped,

- brackets with grooves in the upper part for fixing the functional modules and protrusions in the lower part for connection with the stand,

- stand with grooves for mounting and fixing brackets, made I-shaped or T-shaped or cross-shaped.

That is, the bracket (unlike the prototype) is removable, which expands the possibilities of its use as an independent element or when mounted on a stand .. Longitudinal vertical protrusions can be made on the end part of the bracket for better fixation. The interface elements of the functional modules are configured to transmit electric current.

The invention is illustrated by drawings, which depict a preferred embodiment of the designer, in particular:

- in FIG. 1 is a general schematic view of a constructor in the form of one of the possible spatial structures,

- in FIG. 2 - assembly of a laboratory modular unit with an I-shaped stand,

- in FIG. 3 - assembly of a laboratory modular unit with supports T and I-shaped, as well as with a five-pin central modular unit,

- in FIG. 4 - functional module of the type "holder" with a magnet installed in the through window U,

- in FIG. 5 - functional module type "ditch"

- in FIG. 6 - functional module with a platform for items of equipment,

- in FIG. 7 - functional module of the type "trap",

- in FIG. 8 - functional module type "clip"

- in FIG. 9 - functional module with a compartment for installing a power source,

- in FIG. 10 - functional module type "console"

- in FIG. 11 - functional module of the type "pointer",

- in FIG. 12 - functional module type "contact"

- in FIG. 13 is a functional module of the type "axis",

- in FIG. 14 - a functional module of the type "coil-coil".

The modular laboratory designer (see Fig. 1) preferably consists of at least one mounting panel 1, at least two mounting profiles 2, central and side functional modules 3 and 4, respectively, with equipment elements, connecting modules 5 (brackets 5), installation modules 6 (supports 6) and measuring instruments (for example, a protractor).

On the lateral surfaces of designer elements, marking can be applied in the form of numbering, designation, face value, etc., which helps in identifying such elements, and on mounting profiles 2 - a measuring scale. Examples of such markings can be seen in the figures (in particular, Fig. 2) - numbering of designer elements for better identification, especially when mentioned in the user manual.

Mounting profiles 2, at least on one side, are shaped so that when connecting the profiles 2 to each other, a longitudinal groove 7 is formed for the movement of the test objects. To fix the profiles 2 among themselves and ensure the reliability of their connection, end connectors (plugs) are used. Thus, the mounting profiles 2 can be used both together, forming a mounting plate with a longitudinal groove 7 when connecting, and separately as structural (bearing) elements of the designer.

Functional modules 3 and 4 with equipment elements, brackets 5 and stand 6 together form a laboratory modular unit (see Fig. 2), which in most cases carries the main functional load.

The number of functional modules 3 and 4 used in the formation of the laboratory modular block, brackets 5 and supports 6 depends on the configuration of the elements and the tasks posed during the simulation. Standard equipment requires one central functional module 3, two functional modules 4, two brackets 5 and a stand 6. In some cases, it may be enough

Stands 6 can be made (see Fig. 3) I-shaped or T-shaped or cross-shaped with means of their fixation on the working surfaces of the mounting panel 1 or profiles 2, for example, in the form of pins 8 located at the base of the stand 6. The pins 8 can be made removable, which allows you to replace them if necessary with other means of fixation or remove, for example, to place the stand 6 on a surface other than the mounting panel 1 or profiles 2. On the side surfaces of the stands 6 (see Fig. 2) are made transverse (guides) pa PS 9 and locking grooves 10 for mounting the bracket 5 and fixing it on the stand 6.

The bracket 5 (see Fig. 2) is a profile consisting of two side and one end surface. In the lower part of the side surfaces of the bracket 5, fixing tabs 11 can be located for better connection with the stand 6. In the upper part there are grooves 12 and 13 for installing and fixing the functional modules 4 and 3.

The grooves 12 are made open in the opposite direction to the end part of the bracket 5, which minimizes the risk of damage to the bracket 5 when the functional module 4 is installed in the grooves 12. The risk of such damage was identified during operation of the bracket 5, the groove 12 of which was made open upward. With repeated assembly-disassembling of the elements, the edges of the upwardly opened groove 12 quickly wore out or could be damaged.

In the end part of the bracket 5 there is a groove 13 for interaction and fixing of the functional modules 3 and 4, which is made open up.

The implementation of the bracket 5 in the form of a separate element from the stand 6 allows you to install it yourself on various work surfaces, for example, on the mounting panel 1 or mounting profiles 2. In addition, this design of the bracket 5 allows you to simplify and reduce the cost of manufacturing the stand 6 and the bracket 5, and also reduce costs when replacing damaged or lost parts of the designer. The bracket 5 can be rotated 180 ° to place on the stand 6 of the functional module 3 of a non-standard configuration.

On the end part of the bracket 5, longitudinal vertical (guiding) protrusions 14 can be made (see Fig. 3), which, interacting with the faces of the central functional module 3 installed between the brackets 5, ensure reliable fixation of the functional module 3.

At least on one surface of the mounting panel 1 and mounting profiles 2 are made connecting sockets 15 and 16, respectively, for mounting the stand 6 by interacting with its pins 8, as well as guide grooves (slots) 17 for mounting brackets 6. This significantly expands the functional designer's capabilities, since it is possible to quickly and easily install various functional modules 3 and 4 practically anywhere on the mounting panel 1 or profiles 2.

Functional modules 3 and 4 are made in the form of multifaceted prisms of simple and complex shape, their combination and contain (outside and inside) the elements of the devices and the devices themselves, some of them with the possibility of multiple installation and removal.

At least two end surfaces (faces) of the lateral functional module 3 and the central functional module 4 contain elements 18 for interfacing and fixing with brackets 5.

Depending on the installation method and configuration, the central functional modules 3 and side functional modules 4 are distinguished. On the outer side of the module 4, protrusions 19 can be made that follow the shape of the side of the stand 6, which improves the seating of the module 4 on the bracket 5, its fixation, and also make the shape of the laboratory unit more streamlined, ergonomic and easy to use.

At least on one end surface of module 4, an element 20 for interfacing with modules 3 can be located (see FIGS. 2, 10), in particular through a groove 13 of the bracket 5, and such an element 20 is made in the form of a recess (technological groove) for interaction with elements 18 pairing and fixing. Element 20 can be used when placing functional elements (device elements) on module 4, in particular for transmitting electric current. For example, in FIG. 2, a plate of a device for transmitting electric current to the central modules 3 is installed in the element 20.

The cases of functional modules 3 and 4 can have a different shape depending on the features of the equipment elements placed on them, including depending on the number of interface and fixation elements 18 and 20 and / or electrical contacts.

The central functional modules 3 can be I-shaped (two-pin), T-shaped (three-, five- or seven-pin) or cross-shaped (four- or six-pin) and can be installed on one stand 6 or their combination (see Fig. 3). An example of a five-pin module 3 can be seen in FIG. 3. Such a variety of forms allows you to expand the range of equipment components used, as well as tasks solved with the help of the designer, for example, by combining them.

Functional modules 3 and 4 may contain electrical / radio components, mechanical, optical elements, details of devices, mechanisms, or devices and mechanisms themselves, elements.

For example, a “cage” type functional module (see FIG. 4) is made in the form of a hollow cylinder 21 with a through window for inserting equipment items, for example U, I magnets and protrusions for its installation. Allows you to fix the elements of equipment and change their spatial orientation as necessary.

For example, a functional module of the “cuvette” type 22 (see Fig. 5), which can be used in experiments in the field of molecular physics, electrolysis, etc.

For example, a functional module (see FIG. 6) comprises a pad 23 for measuring instruments, electronic assemblies, and the like, preferably made at an angle. The platform may have built-in equipment elements or installed with the possibility of their removal and replacement (in the form of replaceable covers), while the replaceable cover has a contact (latch) securing the cover to the site. An ammeter, a voltmeter, a variable resistor, a stopwatch or a timer, a solar battery, a breadboard, a calculator, a revolution or vibration counter, a 7-segment indicator, a multimeter, etc. can be used as elements of equipment placed on the site.

For example, a “trap” type functional module (see Fig. 7) contains elements 24 for stopping the ball, preferably consisting of a base plate and located at an acute angle to the base of the trap plate with a fixing window.

For example, a “clamp” type functional module (see FIG. 8) may include a collet chuck 25, in particular for mounting the shaft, which allows the construction of FIG. 1 to fix the functional module 3 at the necessary height for the work above the mounting plate 1.

For example, the functional module 3 (see FIG. 9) contains a compartment 26 for installing a power source, for example, in the form of batteries, while the power source (s) can be secured with locking tabs.

For example, a “console” type functional module (see FIG. 10) contains an element 27 for mounting a mounting plate, interacting with the connecting sockets 16 on its side parts. In addition, the console can be used to attach an additional coil-coil element (see Fig. 14) in the form of a frame 33, which is used in experiments on the study of electromagnetism through its interaction with the compass needle, magnet, magnetically conductive materials, electrical measuring instruments and etc.

For example, a “pointer” type functional module (see Fig. 11) contains an element 28 for fixing measuring instruments (in this case, a protractor) and determining, on their scale, the values of the set values for subsequent installation of the modules taking into account such values or determining values as results performance of work (experiment). A protractor can be installed in the pointer to measure the angle of inclination of the mounting plate relative to the mounting plate 1 or other surface.

For example, a “contact” type functional module (see FIGS. 2, 3, 9, 12) contains elements 29 for transmitting electric current between the modules and external devices, as well as for fixing the conductors. Moreover, at least one side (end) surface of the module has an element for transmitting electric current between the modules in the form of, for example, a plate, which is installed using element 20 (groove). The contact device of the functional block can be made in the form of a clip (including a crocodile type), a socket, a spring, a pin, a magnet, a nut, a clothes button, etc.

For example, an axis-type functional module (see FIG. 13) contains an element 30 in the upper part of the module for mounting, for example, a protractor (or magnetic compass needle), as well as other measuring instruments or devices having a similar mounting method.

Functional modules of the “axis”, “console”, “index”, “contact” type can be installed either directly on the stand 6 (as stand-alone modules), or on another functional module, for example, side module 4.

For example, a functional module (see Fig. 1), which can be used to install the ball. It contains an electromagnet with a swivel bracket 31 and is intended, for example, for the exact installation of the ball on the start line in studies of acceleration, speed, etc.

For example, a functional module of the "key" type (switch, switch) with an element 32, which performs the closure and opening of the electrical circuit. The key can be made mechanical (see. Fig. 1 - button), electromagnetic, electronic, etc.

Assembly of designer elements is as follows.

A laboratory modular unit is formed (see Fig. 2), while in the transverse grooves 9 on the side surfaces of the stand 6, brackets 5 are installed, fixing them using the grooves 10 of the stand 6 and the fixing protrusions 11 of the bracket 5.

When installing the functional module 3 in the niche formed by the brackets 5, the vertical protrusions 14 (see Fig. 2, 3) of the bracket 5 interact with the faces of the module 3, providing a rectilinear movement of the module 3 and preventing the displacement of the module 3 relative to the stand 6.

The functional module 3 is built into the niche formed by the brackets 5 and fixed using the elements 18, 20 and the groove 13 of the bracket 5. The functional module 3 can be installed both horizontally and vertically, depending on the required orientation of the equipment element. Side functional modules 4 are installed in the grooves 12 of the bracket 5.

If a non-standard size (longer) functional module 3 is used to form the laboratory block, the bracket 5 is rotated 180 ° relative to the main position, which allows you to expand the niche for the functional module 3.

In order to form a laboratory modular unit using the T-shaped or cross-shaped function module 3, more than one support 6 of the corresponding forms is used. For example, to install a five-pin functional module 3 (see Fig. 3), two supports 6 are used — an I-shaped stand and a T-shaped stand, on which two and three brackets 5 are mounted, respectively.

To assemble the mounting plate, profiles 2 are connected to each other using end connections (plugs), and a longitudinal groove 7 is formed for the movement of the test objects. So with the help of end connectors of various kinds it is possible to obtain, depending on the tasks, a plate (two profiles), a frame (four profiles), a spatial structure (a more complex connection of profiles to each other), etc.

The laboratory modular unit is installed using the pins 8 of the stand 6 in the connecting sockets 15 of the mounting panel 1 or sockets 16 of the profile 2 in any desired place.

Functional modules 3 and 4 of the laboratory modular unit are used in the quantity necessary and sufficient to solve the task. It is not necessary to use a standard set of two side modules 4 and a central module 3 (for the stand 6 I-shaped). Only side modules 4 can be used, for example (see FIG. 14).

The work of the group of inventions can be demonstrated by the example of an installation that will measure the acceleration of gravity of a body, in particular, a ball.

To create the installation, a mounting plate is used, formed from mounting profiles 2 mounting plate, rod, ball and a number of laboratory modular units with measuring instruments.

The first laboratory modular unit (mounting plate mounting unit) is formed from an I-shaped stand 6, two brackets 5, mounted end-face inside the stand 6, a “clamp” type functional unit with a collet 25 arranged so that the collet 25 is located across the stand 6 and looks sideways, of two functional modules 4 of the “console” type with an element 27 for fixing the mounting plate .. The rod is installed in the connecting socket 15 of the mounting plate 1 and the mounting unit of the mounting plate is fixed to the required Height of, threading the rod into the collet 25. The assembly serves for fastening the mounting plate and changes its height (angle) - it is moved relative to the rod (rack) and fixed in position.

Then form the second laboratory modular unit (ball start unit) from an I-shaped stand 6, two brackets 5 installed end-face inside the stand 6, a functional module 3 with an electromagnet and a rotary bracket 31, as well as functional modules 4 of the contact type with elements 29 for transmitting electric current.

A third laboratory modular unit (ball stop assembly) is formed from an I-shaped stand 6, two brackets 5 installed endwise into the stand 6, a “trap” type functional module 3 with elements 24 for stopping the ball, and a “pointer” type 4 functional modules with an element 28 for fixing the protractor, as well as an axis-type module 4 with an element 30 for installing the protractor. The protractor is fixed using element 28 in the side module 4 of the type "pointer", then rotate to the desired position relative to its goniometric scale. The laboratory unit is mounted on the side surface of the mounting plate, so that the elements 24 of the trap are located at the beginning of the longitudinal groove 7 of the plate.

Using the fixing elements of the consoles 27 of the first block, the mounting plate is installed at an angle, and the angle of inclination can be changed by moving the rod into the collet chuck 25.

In addition, for the operation of the installation, two more blocks are formed and installed with an inclined platform 23 for placing a stopwatch and a calculator, as well as a block for placing circuit power sources in the compartment 26.

To close and open the circuit, a laboratory modular unit with a "key" type functional module with a mechanical element 32 in the form of a button is used.

When you change the angle of rotation of the bracket 31, the ball moves along the groove 7 and its exact installation on the start line. The start of the stopwatch starts the movement of the ball and the countdown. The ball, reaching the trap, is fixed by element 24 and at the same time stops the countdown by a stopwatch using a sensor (mechanical, optocoupler, reed switch, etc.)

Thus, modular units can be installed anywhere in the structure, orienting as needed. All elements are installed in unified, standardized cases, which provides visibility and high “vandal resistance”, as well as interchangeability of parts, and allows you to “fill” the case with any functionality.

The inventive modular designer has a high development potential and has significant methodological value, as it provides variability and visualization of experiments, laboratory and practical work. Simple techniques are used to work with equipment that can be understood as much as possible, including through the use of the same equipment for the teacher and student. As a result, simultaneously with the study of physical laws, students develop design and technological skills for assembly and readjustment.

The modular layout of the device makes it easy to replenish lost or faulty modules, supplement, develop new modules and complete the cabinet with the necessary quantity and functional content. Thus, a reduction in operating costs is achieved, as well as space saving (compactness) during storage of the designer as a teaching material.

Claims (33)

1. A modular constructor comprising: - central and lateral functional modules with elements of interfacing with each other and with brackets, made I-shaped or T-shaped or cross-shaped, - brackets in the form of a profile consisting of one end and two side surfaces with grooves for fixing the functional modules, work surfaces in the form of a mounting panel and at least one mounting profile, and the brackets are made for self-installation on work surfaces through the side surfaces of the bracket, - and on the working surfaces are made connecting sockets and / or slots for mounting brackets. 2. The modular designer according to claim 1, characterized in that the mounting profiles are configured to form a mounting plate when connected. 3. The modular designer according to claim 2, characterized in that the mounting plate has a longitudinal groove. 4. The modular designer according to claim 1, characterized in that it further comprises measuring means. 5. The modular designer according to claim 1, characterized in that it comprises a stand made of I-shaped, T-shaped or cross-shaped. 6. The modular designer according to claim 5, characterized in that the bracket contains locking tabs for connection with a stand, which has corresponding grooves. 7. The modular designer according to claim 5, characterized in that the base of the stand has means for attaching it to the working surfaces of the designer. 8. The modular designer according to claim 7, characterized in that the fastening means of the stand on the working surfaces are made in the form of pins. 9. The modular designer according to claim 8, characterized in that the pins are removable. 10. The modular designer according to claim 1, characterized in that longitudinal vertical protrusions are made on the end part of the bracket. 11. The modular designer according to claim 1, characterized in that the interface elements of the functional modules are configured to transmit electric current. 12. The modular designer according to claim 11, characterized in that the functional module comprises an element for transmitting electric current and fixing the conductors. 13. The modular designer according to claim 1 or 11, characterized in that the functional module is made in the form of a hollow cylinder with a through window for inserting items of equipment. 14. The modular designer according to claim 1 or 11, characterized in that the functional module contains a cuvette. 15. The modular designer according to claim 1 or 11, characterized in that the functional module comprises a platform for built-in or removable equipment elements. 16. The modular designer according to claim 1 or 11, characterized in that the functional module contains elements for stopping the ball. 17. The modular designer according to claim 1 or 11, characterized in that the functional module comprises a clip. 18. The modular designer according to claim 11, characterized in that the functional module comprises a compartment for installing a power source. 19. The modular designer according to claim 1 or 11, characterized in that the functional module comprises a console with a mounting plate mounting element. 20. The modular designer according to claim 1, characterized in that the functional module contains an element for fixing the measuring instruments. 21. The modular designer according to claim 1 or 11, characterized in that the functional module contains an axis for installing devices. 22. The modular designer according to claim 11, characterized in that the functional module comprises an electromagnet with a swivel bracket. 23. The modular designer according to claim 11, characterized in that the functional module contains a key. 24. The modular designer according to claim 1 or 11, characterized in that the functional module comprises a frame. 25. Laboratory modular block designer, containing: - at least one central and / or lateral functional module with mating elements with brackets and between them, made I-shaped or T-shaped or cross-shaped, - brackets with grooves in the upper part for fixing the functional modules and protrusions in the lower part for connection with the stand, - stand with grooves for mounting and fixing brackets, made I-shaped or T-shaped or cross-shaped. 26. The laboratory modular unit according to claim 25, characterized in that longitudinal vertical protrusions are made on the end part of the bracket. 27. The laboratory modular unit according to claim 25, characterized in that the interface elements of the functional modules are configured to transmit electric current.

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