CN219609804U - Card holder for teaching - Google Patents

Abstract

The utility model discloses a card holder for teaching, which structurally comprises a base, wherein a fixed seat is arranged on the rear side of the top surface of the base, the fixed seat is connected with a positioning sleeve through a first adjusting mechanism, a movable plate is arranged in the positioning sleeve in a telescopic manner, the top of the movable plate is connected with a fixed plate through a second adjusting mechanism, the second adjusting mechanism is identical to the first adjusting mechanism in structure, the other end of the fixed plate is connected with a positioning seat, a movable seat is rotatably arranged above the positioning seat, and one side of the movable seat is connected with a card placing frame through a fixed rod.

Description

Card holder for teaching

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a card holder for teaching.

Background

The quality of classroom teaching is the vital link that influences student's study quality, and the vivid classroom often can cultivate the learning interest of a student to improve the enthusiasm of its study, therefore the teacher often promotes the quality of classroom with the help of some relatively novel teaching aids, in order to promote student's learning interest.

Currently, chinese patent publication (bulletin) No. CN213877189U discloses a card holder for english teaching, which includes: the support is L-shaped and comprises a horizontal plate and a vertical plate, the horizontal plate is connected with the vertical plate, a sucking disc is arranged at the bottom of the horizontal plate, an annular first shaft sleeve is arranged at the left end of the upper surface of the vertical plate, an annular second shaft sleeve is arranged at the right end of the upper surface of the vertical plate, the first shaft sleeve and the second shaft sleeve are coaxially arranged, a plurality of positioning grooves are formed in the inner peripheral surface of the first shaft sleeve, and the positioning grooves are distributed at intervals along the circumferential direction of the first shaft sleeve; the rotating shaft is provided with a positioning rib, the rotating shaft is arranged in the first shaft sleeve and the second shaft sleeve in a penetrating way, and the rotating shaft can axially move along the rotating shaft so that the positioning rib can be matched with or separated from one of the positioning grooves; the backup pad, the backup pad is located between first axle sleeve and the second axle sleeve, backup pad and pivot fixed connection are equipped with spacing portion in the backup pad, and spacing portion is used for spacing card. But its support of this card seat for english teaching (support includes horizontal plate and vertical plate) is integrated into one piece's fixed form, and the support does not possess the function that can change its use form, therefore the space occupation volume of this card seat is great, therefore this card seat has higher requirement to the space accommodation volume when carrying.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a card holder for teaching so as to solve the technical problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a card seat for teaching, including the base, base top surface rear side is provided with the fixing base, and the fixing base is connected with the position sleeve through first adjustment mechanism, and flexible being provided with the fly leaf in the position sleeve, the fly leaf top is connected with the fixed plate through second adjustment mechanism, and second adjustment mechanism is the same with first adjustment mechanism structure, and the fixed plate other end is connected with the positioning seat, and the positioning seat top rotates and is provided with the movable seat, and movable seat one side is connected with the card through the dead lever and places the frame.

The utility model is further provided with: the first adjusting mechanism comprises a positioning interval which is arranged on the fixed seat, a shaft column is rotatably arranged in the positioning interval, and the positioning sleeve is fixedly connected with the shaft column.

The utility model is further provided with: the fixing base right side has set firmly the holding ring coaxial with the jack post, and the holding ring cavity forms the activity interval and the jack post right-hand member runs through the fixing base and extends to in this activity interval, and the holding ring right-hand member equidistance and circumference are provided with a plurality of shell fragments, and the holding ring periphery still threaded connection has the fastening ring, and each shell fragment compresses tightly the jack post when this fastening ring is in the fastening state.

The utility model is further provided with: a movable hole is formed in one side of the fastening ring, the movable hole comprises a threaded portion in threaded fit with the positioning ring and a locking portion in fit with each elastic piece, the cross section of the locking portion is of a frustum-shaped structure, and the outer end of each elastic piece is provided with an inclined waist in fit with the locking portion.

The utility model is further provided with: the locating seat center department has offered the holding tank and has installed the apron above the holding tank, and the through-hole has been seted up to apron center department, and the movable seat lower extreme sets firmly the pivot, and the pivot other end runs through the through-hole and extends to in the holding tank and be connected with the rotating block.

The utility model is further provided with: the inner end face of the cover plate is fixedly provided with a first toothed ring which is coaxial with the cover plate, the upper end of the rotating block is provided with a second toothed ring which is matched with the first toothed ring, and a reset spring is arranged between the inner bottom face of the rotating block and the inner end face of the accommodating groove.

The utility model is further provided with: the inner bottom wall of the accommodating groove is fixedly provided with an accommodating groove Rong Huan, the inner bottom surface of the rotating block is provided with an accommodating groove at the corresponding position of the accommodating ring, and an accommodating interval for accommodating the reset spring is formed between the accommodating groove Rong Huan and the accommodating groove.

The utility model is further provided with: suction cups are fixedly arranged at four corners of the lower end of the base.

In summary, the utility model has the following beneficial effects: when the card holder is in a use state, the positioning sleeve is adjusted to be perpendicular to the base through the first adjusting mechanism, the use angle of the card placing frame in the front-rear direction is adjusted through the second adjusting mechanism, the use angle of the placing frame in the left-right direction is adjusted through the cooperation between the movable seat and the positioning seat, the use height of the placing frame is adjusted through the cooperation between the movable plate and the positioning sleeve, and therefore the use flexibility of the card holder is improved, the card holder for teaching can be switched to a storage state in a daily non-use state, the space occupation amount is effectively reduced, and the card holder is convenient for a teaching worker to carry daily.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a right side schematic view of the present utility model;

FIG. 3 is a schematic structural view of a fixing base of the present utility model;

FIG. 4 is a schematic view showing the cooperation of the positioning ring and the fastening ring according to the present utility model;

FIG. 5 is a schematic diagram illustrating the cooperation between the positioning seat and the movable seat according to the present utility model;

fig. 6 is a schematic perspective view of the storage state of the present utility model.

Reference numerals: 1. a base; 10. a card placement frame; 2. a fixing seat; 20. a positioning sleeve; 21. a movable plate; 3. a fixing plate; 30. a positioning seat; 31. a movable seat; 32. a receiving groove; 33. a cover plate; 34. a through hole; 35. a rotating shaft; 36. a rotating block; 4. positioning an interval; 40. a shaft post; 41. a positioning ring; 42. an activity section; 43. a spring plate; 44. a fastening ring; 45. a movable hole; 46. a threaded portion; 47. a locking part; 48. inclined waist; 5. a first toothed ring; 50. a second toothed ring; 6. a return spring; 60. placing Rong Huan; 61. a containing groove is arranged; 7. and a sucking disc.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, a card holder for teaching according to an embodiment of the present utility model includes a base 1, a fixing base 2 is disposed at a rear side of a top surface of the base 1, the fixing base 2 is connected with a positioning sleeve 20 through a first adjusting mechanism, a movable plate 21 is disposed in the positioning sleeve 20 in a telescopic manner, a top of the movable plate 21 is connected with a fixed plate 3 through a second adjusting mechanism, the second adjusting mechanism has the same structure as the first adjusting mechanism, another end of the fixed plate 3 is connected with a positioning base 30, a movable base 31 is rotatably disposed above the positioning base 30, and one side of the movable base 31 is connected with a card placement frame 10 through a fixed rod.

When the card holder is in use (refer to figure 1 of the specification), the positioning sleeve 20 is adjusted to be perpendicular to the base 1 through the first adjusting mechanism, the use angle of the card holder 10 in the front-back direction is adjusted through the second adjusting mechanism, the use angle of the card holder in the left-right direction is adjusted through the cooperation between the movable seat 31 and the positioning seat 30, and the use height of the card holder is adjusted through the cooperation between the movable plate 21 and the positioning sleeve 20, so that the use flexibility of the card holder is improved;

on the other hand, when the teaching card holder needs to be switched to the storage state (refer to fig. 6 of the specification), the card placing frame 10 is rotated by the cooperation between the movable holder 31 and the positioning holder 30 and is directed to the front side of the base 1, then the adjusting frame is rotated to be perpendicular to the base 1 by the second adjusting holder, and finally the positioning sleeve 20 is rotated by the first adjusting mechanism until the positioning sleeve 20 and the card placing frame 10 are consistent with the horizontal direction of the base 1, and the state switching is completed, wherein the teaching card holder occupies a small space in the storage state, so that the teaching card holder is convenient for the teaching workers to carry daily;

wherein, locating sleeve 20 upper end one side threaded connection has the fastener, locks the position of fly leaf 21 through this fastener, avoids card seat use in-process fly leaf 21 to misplace in locating sleeve 20 and lead to card to place frame 10 use height and take place the error change.

The first adjusting mechanism comprises a positioning section 4 arranged on the fixed seat 2, a shaft column 40 is rotationally arranged in the positioning section 4, and the positioning sleeve 20 is fixedly connected with the shaft column 40; the right side of the fixed seat 2 is fixedly provided with a positioning ring 41 which is coaxial with the shaft column 40, the positioning ring 41 is hollow to form a movable section 42, the right end of the shaft column 40 penetrates through the fixed seat 2 and extends into the movable section 42, the right end of the positioning ring 41 is equidistant and circumferentially provided with a plurality of elastic sheets 43, the outer circumferential surface of the positioning ring 41 is also in threaded connection with a fastening ring 44, and when the fastening ring 44 is in a fastening state, each elastic sheet 43 is promoted to press the shaft column 40; the fastening ring 44 has a movable hole 45 on one side, the movable hole 45 includes a threaded portion 46 in threaded engagement with the positioning ring 41 and a locking portion 47 in engagement with each spring plate 43, the cross section of the locking portion 47 is in a truncated cone-shaped structure, and the outer end of each spring plate 43 has an inclined waist 48 in engagement with the locking portion 47.

When the positioning sleeve is used, the structure and the use principle of the first adjusting mechanism and the second adjusting mechanism are the same, the use principle of the first adjusting mechanism is that the shaft post 40 is rotatably arranged in the positioning section 4, the positioning sleeve 20 is rotatably connected with the shaft post 40, so that the angle adjustment of the positioning sleeve 20 is realized, namely, the fastening ring 44 is not screwed with the positioning ring 41 in an initial state, at the moment, a fit clearance is reserved between the positioning ring 41 and the extending end of each elastic piece 43 and the shaft post 40, therefore, the elastic pieces 43 cannot block the rotation of the shaft post 40, namely, the positioning sleeve 20 can freely rotate along the shaft post 40, when the positioning sleeve 20 is adjusted to a required angle and needs to be locked, the fastening ring 44 and the positioning ring 41 are screwed, at the moment, the locking part 47 of the fastening ring 44 is matched with the inclined waist 48 of each elastic piece 43 to enable each elastic piece 43 to bend towards one side of the shaft post 40 synchronously and press the shaft post 40, and at the moment, the position of the shaft post 40 is locked through interference fit between each elastic piece 43 and the shaft post 40;

the use position of the positioning sleeve 20 can be locked by screwing or unscrewing the fastening ring 44, and similarly, the use angle of the card placing frame 10 in the front-rear direction is adjusted by the second adjusting mechanism, and the use position is locked.

The center of the positioning seat 30 is provided with a containing groove 32, a cover plate 33 is arranged above the containing groove 32, the center of the cover plate 33 is provided with a through hole 34, the lower end of the movable seat 31 is fixedly provided with a rotating shaft 35, and the other end of the rotating shaft 35 penetrates through the through hole 34 to extend into the containing groove 32 and is connected with a rotating block 36; the inner end surface of the cover plate 33 is fixedly provided with a first toothed ring 5 coaxial with the cover plate, the upper end of the rotating block 36 is provided with a second toothed ring 50 matched with the first toothed ring 5, and a reset spring 6 is arranged between the inner bottom surface of the rotating block 36 and the inner end surface of the accommodating groove 32; the inner bottom wall of the accommodating groove 32 is fixedly provided with an accommodating ring 60, the inner bottom surface of the rotating block 36 is provided with an accommodating groove 61 at the corresponding position of the accommodating ring 60, and an accommodating interval for accommodating the reset spring 6 is formed between the accommodating ring 60 and the accommodating groove 61.

When the card placing frame is used, the rotating block 36 is always pressed upwards under the action of the reset spring 6 in the initial state, at the moment, the second toothed ring 50 at the upper end of the rotating block 36 is clamped with the first toothed ring 5 on the inner end surface of the cover plate 33 (the cover plate 33 is connected with the positioning seat 30 in a threaded connection mode), the rotation of the rotating block 36 is limited by the clamping limit between the first toothed ring 5 and the second toothed ring 50, the rotation of the movable seat 31 and the card placing frame 10 is further limited, when the direction of the left and right directions of the card placing frame 10 is required to be regulated, the card placing frame 10 is integrally pressed downwards, at the moment, the movable seat 31 is pressed towards one side of the positioning seat 30 and drives the rotating shaft 35 to be pressed inwards to the through hole 34, the rotating shaft 35 is pressed inwards to drive the rotating block 36 to be pressed downwards against the action of the reset spring 6, and at the moment, the limit between the second toothed ring 50 and the first toothed ring 5 disappears, so that the direction of the card placing frame 10 can be regulated, and the direction of the card placing frame can be regulated;

further, the two ends of the spring respectively prop against the inner bottom surface of the accommodating groove 61 and the inner bottom surface of the accommodating ring 60, and the position of the spring is limited by the accommodating space formed between the accommodating ring 60 and the accommodating groove 61, so as to avoid the influence of the position change of the spring during daily use on the stability of the cooperation between the movable seat 31 and the movable seat 31.

Suction cups 7 are fixedly arranged at four corners of the lower end of the base 1.

When the device is used, the base 1 is pressed on other smooth supporting surfaces such as a tabletop, at the moment, the suckers 7 at four corners of the base 1 can adsorb the supporting surfaces so as to fix the using positions of the base 1 and the device and lock the using positions of the device;

wherein, base 1 lower extreme four corners department all is provided with sucking disc 7, further improves the fixed effect to base 1.

Also, the terms pointed out by the present utility model are as follows: the directional or positional relationships indicated by the terms "front", "rear", "vertical", "horizontal", etc., are based on the directional or positional relationships shown in the drawings, are merely for convenience in describing the utility model and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed to limit the scope of the utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (8)

1. The utility model provides a card seat for teaching, including base (1), its characterized in that: the novel card holder is characterized in that a fixing seat (2) is arranged on the rear side of the top surface of the base (1), the fixing seat (2) is connected with a locating sleeve (20) through a first adjusting mechanism, a movable plate (21) is arranged in the locating sleeve (20) in a telescopic manner, the top of the movable plate (21) is connected with a fixed plate (3) through a second adjusting mechanism, the second adjusting mechanism is identical to the first adjusting mechanism in structure, the other end of the fixed plate (3) is connected with a locating seat (30), a movable seat (31) is rotationally arranged above the locating seat (30), and one side of the movable seat (31) is connected with a card placing frame (10) through a fixing rod.

2. The teaching card holder of claim 1, wherein: the first adjusting mechanism comprises a positioning section (4) arranged on the fixed seat (2), a shaft column (40) is rotationally arranged in the positioning section (4), and the positioning sleeve (20) is fixedly connected with the shaft column (40).

3. The teaching card holder of claim 2, wherein: the fixing seat (2) right side has set firmly with coaxial holding ring (41) of spliced pole (40), holding ring (41) cavity forms activity interval (42) and spliced pole (40) right-hand member runs through fixing seat (2) and extends to in this activity interval (42), holding ring (41) right-hand member equidistance and circumference are provided with a plurality of shell fragments (43), holding ring (41) outer peripheral face still threaded connection has fastening ring (44), this each shell fragment (43) are promoted when fastening ring (44) are in the fastening state and compress tightly spliced pole (40).

4. A teaching card holder according to claim 3 and characterized in that: the fastening ring (44) one side has seted up movable hole (45), movable hole (45) include with holding ring (41) screw thread portion (46) and with locking portion (47) of each shell fragment (43) adaptation, locking portion (47) transversal personally submits frustum form structure and each shell fragment (43) outer end all have with the sloping waist (48) of this locking portion (47) complex.

5. The teaching card holder of claim 1, wherein: the locating seat (30) is characterized in that the containing groove (32) is formed in the center of the locating seat (30), the cover plate (33) is arranged above the containing groove (32), the through hole (34) is formed in the center of the cover plate (33), the rotating shaft (35) is fixedly arranged at the lower end of the movable seat (31), and the other end of the rotating shaft (35) penetrates through the through hole (34) to extend into the containing groove (32) and is connected with the rotating block (36).

6. The teaching card holder of claim 5, wherein: the inner end face of the cover plate (33) is fixedly provided with a first toothed ring (5) coaxial with the cover plate, the upper end of the rotating block (36) is provided with a second toothed ring (50) matched with the first toothed ring (5), and a reset spring (6) is arranged between the inner bottom face of the rotating block (36) and the inner end face of the containing groove (32).

7. The teaching card holder of claim 6, wherein: the inner bottom wall of the accommodating groove (32) is fixedly provided with a accommodating groove Rong Huan (60), the inner bottom surface of the rotating block (36) is provided with an accommodating groove (61) at the corresponding position of the accommodating ring (60), and an accommodating interval for accommodating the reset spring (6) is formed between the accommodating groove Rong Huan (60) and the accommodating groove (61).

8. The teaching card holder of claim 1, wherein: sucking discs (7) are fixedly arranged at four corners of the lower end of the base (1).