CN220553219U - Demonstration device - Google Patents

Abstract

The utility model discloses a demonstration device, which comprises two stand frames arranged in parallel, wherein a demonstration board for showing consultation information to a customer is fixedly connected between the two stand frames; the rear sides of the two vertical frames are respectively hinged with diagonal bracing brackets through hinge seats in a rotating way, and the left diagonal bracing bracket and the right diagonal bracing bracket are fixedly connected through a cross rod; one side that two risers kept away from each other rotates respectively and is connected with the rotation connecting rod, and the other end swing joint of rotation connecting rod has the knob, has fixedly cup jointed the hob on the knob, and the other end rotation of hob runs through to the inboard of rotation connecting rod and threaded connection has the slide piece. This presentation device, when not needing demonstration to use, can make things convenient for people to roll over bracing support and grudging post together to make things convenient for people to carry or store whole device, and simple structure, not only convenient operation uses, and the location is more firm after the roll over, has avoided taking place loose condition to appear after the roll over.

Description

Demonstration device

Technical Field

The utility model relates to the field of presentation devices, in particular to a presentation device.

Background

A presentation device is a device or tool for presenting or demonstrating a particular product, technology, theory, or concept, intended to clearly demonstrate particular content to a viewer, customer, student, or other relevant person, typically for educational, promotional, sales, or presentation purposes.

During various related activities, staff typically use a presentation board to present related advisories to customers. Typically, the demonstration board is composed of a stand and a board body, under which a plurality of wheels are usually provided in order to move the whiteboard; the utility model discloses a demonstration whiteboard for engineering management consultation, which is disclosed in the prior Chinese patent publication No. CN209320548U, and comprises supporting legs, a board body (i.e. a demonstration board) arranged on the supporting legs and casters arranged at the bottom sides of the supporting legs; however, when the demonstration board in the current demonstration device is not used, the whole device is large in general volume space, and can not be folded according to the needs of a user, so that people can not conveniently and rapidly carry or store, and the carrying or storage use of the user is affected.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a demonstration device.

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

a demonstration device comprises two stand frames which are arranged in parallel, and a demonstration board for showing consultation information to a customer is fixedly connected between the two stand frames; the rear sides of the two vertical frames are respectively hinged with diagonal bracing brackets through hinge seats in a rotating way, and the left diagonal bracing bracket and the right diagonal bracing bracket are fixedly connected through a cross rod;

one side, away from each other, of the two vertical frames is respectively and rotatably connected with a rotating connecting rod, the other end of the rotating connecting rod is movably connected with a knob, a screw rod is fixedly sleeved on the knob, the other end of the screw rod is rotatably penetrated to the inner side of the rotating connecting rod and is in threaded connection with a slideway block, the outer side of the diagonal bracing support is provided with a slideway groove, and the slideway block is slidably arranged in the slideway groove;

the slide way block is provided with a thread groove, and one end of the screw rod, which is far away from the knob, is in threaded connection with the thread groove; the rotary connecting rod is provided with a rotary hole, the spiral rod rotates to penetrate through the rotary hole, the circumferential inner wall of the rotary hole is provided with an annular limiting groove, the spiral rod positioned in the rotary hole is fixedly sleeved with a limiting movable ring, and the limiting movable ring is movably arranged in the annular limiting groove.

Preferably, one end of the screw rod far away from the knob is provided with external threads, the inner wall of the thread groove is provided with internal threads, and the external threads on the screw rod are matched with the internal threads on the inner wall of the thread groove.

Preferably, the slide block is fixedly connected with a slide block, a slide groove is arranged on the side wall of the slide groove, and the slide block is slidably arranged in the slide groove.

Preferably, the sliding block is a T-shaped sliding block, and the sliding groove is a T-shaped sliding groove.

Preferably, a plurality of balls are arranged on the circumference of the limiting movable ring in a rolling way, and the limiting movable ring is in rolling connection with the inner wall of the annular limiting groove through the plurality of balls on the circumference.

Preferably, one end of the rotating connecting rod, which is close to the vertical frame, is provided with a rotating connecting hole, and one end of the rotating connecting rod, which is close to the vertical frame, is rotationally connected with the vertical frame through a rotating pin.

By adopting the structure, the utility model has the following beneficial effects:

according to the utility model, the diagonal bracing bracket and the vertical frame are folded together, and then the knob drives the screw rod to reversely rotate and to be in thread locking positioning with the thread groove on the slideway block, so that the firmness after folding can be ensured by the locking positioning of the screw rod, and the situation that the screw rod is loosened after folding is prevented;

according to the utility model, the screw rod can be limited by arranging the limiting movable ring and the annular limiting groove, so that the screw rod is prevented from being completely separated from the threaded groove;

finally, when the demonstration device is not needed to be demonstrated and used, people can conveniently fold the inclined support and the vertical frame together, so that the whole device is convenient to carry or store, the demonstration device is simple in structure, convenient to operate and use, firm in positioning after folding, and capable of avoiding the occurrence of loose conditions after folding.

Drawings

Fig. 1 is a schematic structural diagram of a demonstration device according to the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of a rotational connection between a diagonal brace bracket and a rotational link in accordance with the present utility model;

fig. 4 is an enlarged schematic view of the portion a in fig. 3 according to the present utility model.

In the figure: 1. a vertical frame; 2. a demonstration board; 3. a hinge base; 4. a diagonal brace bracket; 5. a cross bar; 6. rotating the connecting rod; 601. a rotation hole; 602. an annular limit groove; 7. a rotation pin; 8. a knob; 9. a screw rod; 901. an external thread; 10. a slideway block; 11. a slideway slot; 12. a slide block; 13. a chute; 14. a limiting movable ring; 15. a ball; 16. a thread groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 4, a presentation apparatus includes two stand frames 1 arranged in parallel, and a presentation board 2 for presenting consultation information to a customer is fixedly connected between the two stand frames 1; the rear sides of the two vertical frames 1 are respectively hinged with diagonal bracing brackets 4 through hinge seats 3 in a rotating way, and the left diagonal bracing bracket 4 and the right diagonal bracing bracket 4 are fixedly connected through a cross rod 5;

one side of the two vertical frames 1, which are far away from each other, is respectively and rotatably connected with a rotary connecting rod 6, the other end of the rotary connecting rod 6 is movably connected with a knob 8, a screw rod 9 is fixedly sleeved on the knob 8, the other end of the screw rod 9 is rotatably penetrated to the inner side of the rotary connecting rod 6 and is in threaded connection with a slideway block 10, the outer side of the diagonal bracing bracket 4 is provided with a slideway groove 11, and the slideway block 10 is slidably arranged in the slideway groove 11;

the slide block 10 is provided with a thread groove 16, and one end of the screw rod 9, which is far away from the knob 8, is in threaded connection with the thread groove 16; the rotary connecting rod 6 is provided with a rotary hole 601, the spiral rod 9 rotates and penetrates through the rotary hole 601, the circumferential inner wall of the rotary hole 601 is provided with an annular limiting groove 602, the spiral rod 9 positioned in the rotary hole 601 is fixedly sleeved with a limiting movable ring 14, and the limiting movable ring 14 is movably arranged in the annular limiting groove 602.

In this example, an external thread 901 is provided at an end of the screw rod 9 away from the knob 8, an internal thread is provided on an inner wall of the thread groove 16, and the external thread 901 on the screw rod 9 is matched with the internal thread on the inner wall of the thread groove 16.

In the example, a slide block 12 is fixedly connected to a slide block 10, a slide groove 13 is arranged on the side wall of a slide groove 11, and the slide block 12 is slidably arranged in the slide groove 13; the slide 12 is embodied as a T-shaped slide and the slide slot 13 is embodied as a T-shaped slide slot.

Wherein, a plurality of balls 15 are arranged on the circumference of the limit movable ring 14 in a rolling way, and the limit movable ring 14 is connected with the inner wall of the annular limit groove 602 in a rolling way through the plurality of balls 15 on the circumference; one end of the rotating connecting rod 6, which is close to the vertical frame 1, is provided with a rotating connecting hole, and one end of the rotating connecting rod 6, which is close to the vertical frame 1, is rotationally connected with the vertical frame 1 through a rotating pin 7.

As shown in fig. 1 to 4, in the present utility model, during the consultation process, a worker can display the related consultation contents to a customer through a demonstration board 2; and when not demonstrating the use, can also draw together the bracing support 4 of the device rear side to the grudging post 1 and roll over to reduce the volume space that occupies. I.e. upon folding: the screw rod 9 is driven to rotate through the knob 8 and is loosened with the thread groove 16 on the slideway block 10, at the moment, the rotary connecting rod 6 can slide upwards in the slideway groove 11 through the slideway block 10, so that the diagonal bracing support 4 can be folded towards the vertical frame 1, after the diagonal bracing support 4 and the vertical frame 1 are folded together, the screw rod 9 is driven to rotate reversely through the knob 8 and is locked and positioned with the thread groove 16 on the slideway block 10 through the screw rod 9, and the firmness after folding can be ensured through the locking and positioning of the screw rod 9, so that the situation of loose opening after folding can be prevented; in addition, by arranging the limiting movable ring 14 and the annular limiting groove 602, the screw rod 9 can be limited, so that the screw rod 9 is prevented from being completely separated from the thread groove 16;

finally, when the demonstration is not needed, people can conveniently fold the inclined support 4 and the vertical frame 1 together, so that the whole device is convenient to carry or store, the structure is simple, the operation and the use are convenient, the positioning after folding is firmer, and the loose opening of the folded device is avoided.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The demonstration device is characterized by comprising two stand frames (1) which are arranged in parallel, wherein a demonstration board (2) for showing consultation information to a customer is fixedly connected between the two stand frames (1); the rear sides of the two vertical frames (1) are respectively hinged with diagonal bracing brackets (4) through hinge seats (3) in a rotating way, and the left diagonal bracing bracket and the right diagonal bracing bracket (4) are fixedly connected through a cross rod (5);

one side, away from each other, of the two vertical frames (1) is respectively and rotatably connected with a rotating connecting rod (6), the other end of the rotating connecting rod (6) is movably connected with a knob (8), a screw rod (9) is fixedly sleeved on the knob (8), the other end of the screw rod (9) is rotatably penetrated to the inner side of the rotating connecting rod (6) and is in threaded connection with a slideway block (10), the outer side of the diagonal bracing support (4) is provided with a slideway groove (11), and the slideway block (10) is slidably arranged in the slideway groove (11);

a thread groove (16) is formed in the slideway block (10), and one end of the screw rod (9) far away from the knob (8) is in threaded connection with the thread groove (16); be equipped with rotation hole (601) on rotating connecting rod (6), and hob (9) rotate and run through in rotation hole (601), be equipped with annular spacing groove (602) on the circumference inner wall of rotation hole (601), fixed cup joint spacing expansion ring (14) on hob (9) that are located in rotation hole (601), and spacing expansion ring (14) activity is located in annular spacing groove (602).

2. The demonstration device according to claim 1, characterized in that an external thread (901) is arranged at one end of the screw rod (9) far away from the knob (8), an internal thread is arranged on the inner wall of the thread groove (16), and the external thread (901) on the screw rod (9) is matched with the internal thread on the inner wall of the thread groove (16).

3. The demonstration device according to claim 1, wherein the slide block (10) is fixedly connected with a sliding block (12), a sliding groove (13) is arranged on the side wall of the slide groove (11), and the sliding block (12) is slidably arranged in the sliding groove (13).

4. A presentation device according to claim 3, wherein the slide (12) is embodied as a T-shaped slide and the slide (13) is embodied as a T-shaped slide.

5. A presentation device according to claim 1, characterized in that the limit piston ring (14) is provided with a plurality of balls (15) on its circumference in a rolling manner, and the limit piston ring (14) is in rolling connection with the inner wall of the annular limit groove (602) by means of the plurality of balls (15) on its circumference.

6. A presentation device according to claim 1, characterized in that the end of the rotating connecting rod (6) close to the stand (1) is provided with a rotating connecting hole, and the end of the rotating connecting rod (6) close to the stand (1) is rotationally connected with the stand (1) through a rotating pin (7).