CN213254549U

CN213254549U - Laboratory bench is used in chemistry teaching convenient to remove show

Info

Publication number: CN213254549U
Application number: CN202021838555.0U
Authority: CN
Inventors: 伍劲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-05-25
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a laboratory bench for chemistry teaching convenient to remove show relates to the teaching device field, turns to inconvenient problem in the classroom to current dynamic formula chemistry laboratory bench, now proposes following scheme, and it includes the laboratory bench, the laboratory bench includes flat board and support, just the top and the flat board of support are fixed connection, the flat board is the level form, just the support is vertical downward form, the support is located dull and stereotyped four corners and is the symmetric distribution, just the bottom of support all matches and installs the universal wheel structure, the universal wheel structure includes base, steel ball and spherical gyro wheel, the strake is installed along its profile a week matching in dull and stereotyped top, just the spherical lateral wall of spherical gyro wheel matches and has cup jointed the rubber layer, the circular slot has all been seted up to the bottom of support. The utility model discloses novel structure, and the device simple structure, be convenient for maintain and effectual solved portable chemical laboratory bench and turned to inconvenient problem in the classroom.

Description

Laboratory bench is used in chemistry teaching convenient to remove show

Technical Field

The utility model relates to a teaching device field especially relates to a laboratory bench is used in chemistry teaching convenient to remove show.

Background

The general teaching teacher's desk is fixed near the teacher's desk, but in some special teaching subjects, the desk needs to be frequently moved, for example, in the chemical experiment teaching, in order to make all students in the classroom observe the chemical experiment operation and chemical reaction phenomenon well, the laboratory bench needs to be moved to a proper position in the classroom, if the laboratory bench can be moved, the bottom end of the laboratory bench must be equipped with a roller structure capable of freely turning, the existing roller structures on the market are different in size, generally called as universal wheels, the structure is that a group of rotating shafts capable of freely turning are additionally arranged on the top end of the wheel, and the shaft center of the rotating shafts does not pass through the wheel center, so when the wheel is pushed to the side surface, the rotating shafts pull the wheel to a new direction and rotate at the same time, thereby realizing the change of the rolling direction of the wheel, and the universal wheels on the market are all based on the principle, however, when the table provided with the universal wheels is pushed to the side, the table can draw an arc by taking the wheels as the center and taking the distance between the rotating shaft and the wheels as a radius, so that the table cannot be directly moved to a new direction, the turning is easier as the radius is larger, but the space required by the turning is larger, which is very disadvantageous in crowded classrooms or other limited spaces.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of laboratory bench is used in chemistry teaching convenient to remove show has solved portable chemical laboratory bench and has turned to inconvenient problem in the classroom.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a laboratory bench is used in chemistry teaching convenient to remove show, includes the laboratory bench, the laboratory bench includes flat board and support, just the top and the flat board of support are fixed connection, the flat board is the level form, just the support is vertical downward form, the support is located dull and stereotyped four corners and is the symmetric distribution, just the bottom of support all matches and installs the universal wheel structure, the universal wheel structure includes base, steel ball and spherical gyro wheel.

Preferably, the top end of the flat plate is provided with an edge strip along the contour of the flat plate in a matching way, and the spherical side wall of the spherical roller is sleeved with a rubber layer in a matching way.

Preferably, the bottom of the support is provided with a circular groove, the circular groove is internally sleeved with a slide rod, a slide shaft and a magnetic ring, the slide shaft is fixedly connected with the top end of the slide rod, the slide shaft and the slide rod are slidably connected with the support, the magnetic ring is slidably sleeved with the slide shaft, and the magnetic ring is fixedly connected with the support.

Preferably, the bottom of slide bar all runs through in the support, just the bottom of slide bar all is fixed connection with the base, all match between the bottom of support and the base and install the spring, just the spring all is the slip with the slide bar and cup joints.

Preferably, the spherical groove has all been seted up to the bottom of base, just the base is located spherical inslot and has seted up the ring channel, one side sealing connection of base has the glib talker, just the glib talker is the connectivity with the ring channel.

Preferably, the spherical roller is sleeved in the spherical groove in a sliding manner, the bottom end of the spherical roller penetrates through the base, the steel balls are sleeved in the annular groove in a sliding manner and are connected with the spherical roller in a sliding manner, and the steel balls are distributed in an annular array relative to the spherical roller.

The utility model has the advantages that:

1. the device is through cup jointing the spring on the slide bar between base and support for the device possesses shock-absorbing function, and makes the device's universal wheel structure avoid droing through magnetic ring and slide-spindle, makes things convenient for the dismouting universal wheel structure simultaneously, makes it be convenient for maintain.

2. The spherical roller of the device forms rolling friction with the base through the steel balls, so that the experiment table can horizontally move through the spherical roller, and a harder rubber layer is sleeved on the outer surface of the spherical roller of the device to reduce the rotation noise of the spherical roller.

In conclusion, the device has a simple structure, is convenient to maintain, and effectively solves the problem that the mobile chemical experiment table is inconvenient to turn in a classroom.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is an enlarged view of the structure a in fig. 1 according to the present invention.

Fig. 3 is an enlarged view of the structure B in fig. 2 according to the present invention.

Fig. 4 is a cross-sectional view of C-C in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a flat plate; 2. edging; 3. a support; 4. a base; 5. a circular groove; 6. a slide bar; 7. a slide shaft; 8. a magnetic ring; 9. a spring; 10. a spherical groove; 11. an annular groove; 12. a nozzle tip; 13. steel balls; 14. a spherical roller; 15. a rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a laboratory bench for chemistry teaching convenient to remove show, includes the laboratory bench, the laboratory bench includes dull and stereotyped 1 and support 3, and the top of support 3 is fixed connection with dull and stereotyped 1, dull and stereotyped 1 is the level form, and support 3 is vertical downward form, support 3 is located the four corners of dull and stereotyped 1 and is the symmetric distribution, and the bottom of support 3 all matches and installs the universal wheel structure, the universal wheel structure includes base 4, steel ball 13 and spherical gyro wheel 14, the top of dull and stereotyped 1 matches along its profile a week and installs strake 2, and the spherical lateral wall of spherical gyro wheel 14 matches and has cup jointed rubber layer 15, the bottom of support 3 all has seted up circular slot 5, and all cup jointed slide bar 6, slide bar 7 and magnetic ring 8 in the circular slot 5, slide bar 7 is fixed connection with the top of slide bar 6, and slide bar 7 and slide bar 6 are sliding connection with support 3, the magnetic ring 8 is sleeved with the sliding shaft 7 in a sliding manner, the magnetic ring 8 is fixedly connected with the bracket 3, the bottom ends of the sliding rods 6 penetrate through the bracket 3, the bottom ends of the sliding rods 6 are fixedly connected with the base 4, springs 9 are arranged between the bottom ends of the brackets 3 and the base 4 in a matching way, the springs 9 are all sleeved with the slide rod 6 in a sliding way, the bottom ends of the bases 4 are all provided with spherical grooves 10, an annular groove 11 is arranged in the spherical groove 10 of the base 4, one side of the base 4 is hermetically connected with an oil nozzle 12, the oil nozzle 12 is communicated with the annular groove 11, the spherical roller 14 is sleeved in the spherical groove 10 in a sliding manner, the bottom end of the spherical roller 14 penetrates through the base 4, the steel ball 13 is sleeved in the annular groove 11 in a sliding manner, and the steel balls 13 are connected with the spherical roller 14 in a sliding manner, and the steel balls 13 are distributed in an annular array relative to the spherical roller 14.

The working principle is as follows: the experiment table is improved in that the experiment table can be pushed to any horizontal direction at any angle at any time in a straight line manner, and is different from the side effect of twisting when the traditional mobile experiment table moves;

the flat plate 1 of the device is used as an experiment table and is supported by four groups of brackets 3, when the experiment table is pressed downwards, the brackets 3 slide along the slide bars 6 and compress the springs 9, when the experiment table is lifted, the structure of the universal wheel is prevented from falling off through the suction force between the magnetic ring 8 and the sliding shaft 7, so that the device has good shock absorption performance when encountering potholes, the universal wheel structure and the spring 9 can be easily disassembled, assembled and maintained, the spherical roller 14 of the device forms rolling friction with the base 4 through the steel balls 13, thereby reducing the friction force, enabling the experiment table to horizontally move through the spherical roller 14, the spherical roller 14 of the device is externally sleeved with a harder rubber layer 15 to reduce the rotation noise of the spherical roller 14, the device is provided with a nozzle 12 at one side of the base 4, and a small amount of grease can be injected into the annular groove 10 through the nozzle 12 so as to further reduce the abrasion of the steel balls 13.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a laboratory bench for chemistry teaching convenient to remove show, includes the laboratory bench, its characterized in that, the laboratory bench includes flat board (1) and support (3), just the top of support (3) is fixed connection with flat board (1), flat board (1) is the level form, just support (3) are vertical downward form, the four corners that support (3) are located flat board (1) is the symmetric distribution, just the bottom of support (3) all matches and installs the universal wheel structure, the universal wheel structure includes base (4), steel ball (13) and spherical gyro wheel (14).

2. The laboratory bench for chemistry teaching convenient to remove show of claim 1 characterized in that, the top of flat board (1) is along its profile a week match and is installed strake (2), and the spherical lateral wall match of spherical gyro wheel (14) is cup jointed rubber layer (15) in the socket.

3. The chemical teaching experiment table convenient for moving display as claimed in claim 1, wherein the bottom end of the support (3) is provided with a circular groove (5), the circular groove (5) is internally sleeved with a slide rod (6), a slide shaft (7) and a magnetic ring (8), the slide shaft (7) is fixedly connected with the top end of the slide rod (6), the slide shaft (7) and the slide rod (6) are slidably connected with the support (3), the magnetic ring (8) is slidably sleeved with the slide shaft (7), and the magnetic ring (8) is fixedly connected with the support (3).

4. The laboratory bench for chemistry teaching convenient to remove show of claim 3, characterized in that, the bottom of slide bar (6) all runs through in support (3), and the bottom of slide bar (6) all is fixed connection with base (4), all match between the bottom of support (3) and base (4) and install spring (9), just spring (9) all are sliding sleeve with slide bar (6).

5. The laboratory bench for chemistry teaching convenient to remove show of claim 1, characterized in that, spherical groove (10) have all been seted up to the bottom of base (4), and base (4) are located spherical groove (10) and have seted up ring channel (11), one side sealing connection of base (4) has glib talker (12), just glib talker (12) are the intercommunication form with ring channel (11).

6. The laboratory bench for chemistry teaching convenient to remove show of claim 5, characterized in that, spherical gyro wheel (14) slip cup joints in spherical groove (10), and the bottom of spherical gyro wheel (14) runs through in base (4), steel ball (13) slip cup joints in ring channel (11), and steel ball (13) are sliding connection with spherical gyro wheel (14), steel ball (13) are the annular array with respect to spherical gyro wheel (14) and distribute.