CN210443113U - Small-size mechanical principle science popularization teaching instrument that can establish ties - Google Patents

Abstract

The utility model discloses a small-sized tandem mechanical principle science popularization teaching instrument, which belongs to the mechanical principle teaching field and comprises a support plate, a mounting hole, a chute, a support frame and a support shaft, wherein the support plate is provided with a plurality of mounting holes which are uniformly distributed, and the support plate is provided with a plurality of chutes; the rear end of the supporting shaft is connected with the crank; the rear surface of the supporting plate is provided with a plurality of supporting frames, and a plurality of standby connecting rods are arranged on the supporting frames; the upper surface of the supporting seat is provided with a plurality of mounting seats which are arranged at equal intervals left and right, and the rear side wall of the supporting plate is provided with a jacket. The clamping grooves and the clamping strips are arranged on the left side and the right side of the supporting plate, and a plurality of supporting plates can be connected in series left and right through the matching of the clamping grooves and the clamping strips; the utility model discloses spare connecting rod and back shaft have been set up to set up a plurality of mounting holes and multichannel and be the spout of setting anyhow, make the user can splice various link mechanism in the backup pad.

Description

Small-size mechanical principle science popularization teaching instrument that can establish ties

Technical Field

The utility model belongs to the mechanical principle teaching field specifically is a but small-size serial-type mechanical principle science popularization teaching instrument.

Background

The link mechanism is a very common transmission mechanism in mechanical transmission, can convert the circumferential rotation of the motor into various required motion forms, such as left-right reciprocating movement, shaking and the like, and is also an important basic teaching subject in mechanical teaching. At present school is generally through picture and video to link mechanism's teaching, and the student is difficult to have audio-visual impression, can not oneself manual operation, hardly understands transmission relation and dead point among the link mechanism, degree of freedom scheduling problem, and the teaching effect teaches generally. In addition, some schools have special teaching instrument, but the structure of instrument is comparatively huge, the transport of not being convenient for, needs the student to go to special classroom class collectively, and current teaching instrument does not allow the student to adjust inner structure yet moreover, and the student lacks the training of manual operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to a but small-size serial-type mechanical principle science popularization teaching instrument to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a small-sized tandem mechanical principle science popularization teaching instrument comprises a supporting plate, a supporting seat, a mounting hole, a sliding groove, a supporting frame and a supporting shaft, wherein a clamping groove is formed in the left side wall of the supporting plate, a clamping strip is arranged on the right side wall of the supporting plate, the supporting seat is arranged at the bottom end of the supporting plate, and the supporting seat supports the supporting plate; the supporting plate is provided with a plurality of uniformly distributed mounting holes, and the supporting plate is provided with a plurality of sliding grooves; the front surface of the supporting plate is provided with crank link mechanisms at intervals; the front surface of the supporting plate is provided with crank sliding block mechanisms at intervals; the rear end of the supporting shaft is connected with the crank; the rear surface of the supporting plate is provided with a plurality of supporting frames which are arranged at equal intervals from top to bottom, and a plurality of spare connecting rods are arranged on the supporting frames; the upper surface of the supporting seat is provided with a plurality of mounting seats which are arranged at equal intervals left and right, and the rear side wall of the supporting plate is provided with a jacket.

As a further aspect of the present invention: the bearing is installed on the inside wall of the mounting hole, and the sliding groove comprises a horizontally arranged sliding groove and a vertically arranged sliding groove.

As a further aspect of the present invention: the rear end of the supporting shaft is connected with a first limiting head through threads, the rear side wall of the first limiting head is provided with an installation groove, and the installation groove is matched with the front end of the crank for use; the front end of back shaft is equipped with the spacing collar, and the front end of spacing collar is equipped with the threaded rod, is equipped with the external screw thread on the lateral wall of threaded rod, overlaps through the screw thread on the threaded rod to be equipped with second spacing head.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses set up joint groove and joint strip in the left and right sides of backup pad, can make polylith backup pad left and right sides series connection through the cooperation of joint groove and joint strip, make the utility model discloses can supply with many students simultaneously and use, and to some link mechanism that the structure is comparatively complicated, single backup pad is difficult to bear, the utility model discloses the concatenation to the backup pad makes complicated mechanism also can splice on the utility model discloses, in addition, the utility model discloses after using, can split open, and pile together, occupation space is little, easily puts and transports; the utility model discloses spare connecting rod and back shaft have been set up to set up a plurality of mounting holes and multichannel and be the spout of setting anyhow, made the user can splice various link mechanism in the backup pad, set up the link mechanism operation that the crank can control the concatenation, made the user can the visual observation out link mechanism's the operation condition.

Drawings

Fig. 1 is a front view of a three-dimensional structure of a small mechanical principle science popularization teaching instrument capable of being connected in series.

Fig. 2 is a rear view of a three-dimensional structure of a small mechanical principle science popularization teaching instrument capable of being connected in series.

Fig. 3 is a front view of a small mechanical principle science popularization teaching instrument which can be connected in series.

Fig. 4 is a rear view schematic diagram of a small mechanical principle science popularization teaching instrument capable of being connected in series.

Fig. 5 is a schematic perspective view of a support shaft of a small-sized mechanical principle science popularization teaching apparatus capable of being connected in series.

In the figure: 1. a support plate; 2. a clamping strip; 3. a clamping groove; 4. a supporting seat; 5. mounting holes; 6. a chute; 7. a crank link mechanism; 8. a slider-crank mechanism; 9. a support frame; 10. a standby connecting rod; 11. a mounting seat; 12. a jacket; 13. a support shaft; 131. a first stopper; 132. mounting grooves; 133. a limiting ring; 134. a threaded rod; 135. a second limiting head; 14. a crank handle.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-5, a small-sized tandem mechanical principle science popularization teaching instrument comprises a supporting plate 1, a supporting seat 4, a mounting hole 5, a sliding chute 6, a supporting frame 9 and a supporting shaft 13, wherein a clamping groove 3 is formed in the left side wall of the supporting plate 1, a clamping strip 2 is arranged on the right side wall of the supporting plate 1, a plurality of supporting plates 1 are connected in series from left to right through the matching of the clamping groove 3 and the clamping strip 2, the supporting seat 4 is arranged at the bottom end of the supporting plate 1, and the supporting plate 1 is supported by the supporting seat 4, so that the supporting plate 1 can be stably placed on a desktop; set up the mounting hole 5 that a plurality of equipartitions set up on backup pad 1, install the bearing on the inside wall of mounting hole 5, seted up multichannel spout 6 on backup pad 1, spout 6 includes the spout 6 of level setting and vertical setting.

The front surface of the supporting plate 1 is provided with crank link mechanisms 7 at intervals, the bottom ends of cranks in the crank link mechanisms 7 are fixed in the mounting holes 5 through supporting shafts 13, the cranks can rotate in the mounting holes 5 along with the supporting shafts 13, the bottom ends of rockers in the crank link mechanisms 7 are fixed in the mounting holes 5 through the supporting shafts 13, and the rockers can rotate in the mounting holes 5 along with the supporting shafts 13; the front surface of the supporting plate 1 is provided with crank sliding block mechanisms 8 at intervals, the bottom ends of cranks in the crank sliding block mechanisms 8 are fixed in the mounting holes 5 through supporting shafts 13, the cranks can rotate in the mounting holes 5 along with the supporting shafts 13, sliding blocks in the crank sliding block mechanisms 8 are inserted into the sliding grooves 6, and the sliding blocks can move in the sliding grooves 6 in a reciprocating mode; the rear end of the support shaft 13 is connected to a crank 14.

The rear surface of the supporting plate 1 is provided with a plurality of supporting frames 9, the supporting frames 9 are arranged at equal intervals up and down, and a plurality of standby connecting rods 10 are arranged on the supporting frames 9; the upper surface of supporting seat 4 is equipped with a plurality of left and right equidistant arrangement's mount pad 11, and mount pad 11 sets up on supporting seat 4 lies in the surface in backup pad 1 rear, and reserve back shaft 13 is placed on mount pad 11, is equipped with on the rear side wall of backup pad 1 and presss from both sides cover 12, presss from both sides cover 12 cooperation mount pad 11 and can fix the position of back shaft 13.

As shown in fig. 5, the rear end of the support shaft 13 is connected with a first limiting head 131 through a screw thread, the first limiting head 131 can be removed from the rear end of the support shaft 13, a mounting groove 132 is formed in the rear side wall of the first limiting head 131, the mounting groove 132 is matched with the front end of the crank 14 for use, the front end of the crank 14 is inserted into the mounting groove 132, and the rotation of the support shaft 13 can be controlled through the crank 14; the front end of back shaft 13 is equipped with spacing ring 133, and the front end of spacing ring 133 is equipped with threaded rod 134, is equipped with the external screw thread on the lateral wall of threaded rod 134, and threaded rod 134 goes up and is equipped with second spacing head 135 through the thread bush, and second spacing head 135 can move on threaded rod 134 through the screw thread to change the distance between second spacing head 135 and the spacing ring 133.

In the use process of the utility model, a user selects a proper number of support plates 1 to be connected in series left and right as required, takes off the spare connecting rods 10 from the support frame 9, takes off the support shaft 13 from the mounting seat 11, selects the mounting holes 5 and the chutes 6 at proper positions according to the shape of the required splicing, and splices a plurality of spare connecting rods 10 through the support shaft 13; the specific assembling process comprises the following steps: the first limiting head 131 is taken down from the supporting shaft 13, the supporting shaft 13 is inserted into the mounting hole 5, the first limiting head 131 is screwed back to the rear end of the supporting shaft 13 through threads, the supporting shaft 13 is matched with a bearing in the mounting hole 5, the second limiting head 135 is detached, one end of the standby connecting rod 10 is inserted into the threaded rod 134, the second limiting head 135 is installed again, the second limiting head 135 is matched with the limiting ring 133 to clamp the standby connecting rod 10, the standby connecting rod 10 can rotate along with the supporting shaft 13, the crank 14 is fixed on the supporting shaft 13 corresponding to the driving connecting rod through the mounting groove 132, the driving connecting rod can rotate by rotating the crank 14, and the spliced connecting rod mechanism can operate.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (3)

1. A small-sized tandem mechanical principle science popularization teaching instrument comprises a supporting plate (1), a supporting seat (4), a mounting hole (5), a sliding groove (6), a supporting frame (9) and a supporting shaft (13), and is characterized in that a clamping groove (3) is formed in the left side wall of the supporting plate (1), a clamping strip (2) is arranged on the right side wall of the supporting plate (1), the supporting seat (4) is arranged at the bottom end of the supporting plate (1), and the supporting seat (4) supports the supporting plate (1); a plurality of mounting holes (5) are uniformly distributed on the supporting plate (1), and a plurality of sliding grooves (6) are formed on the supporting plate (1); the front surface of the supporting plate (1) is provided with crank link mechanisms (7) at intervals; the front surface of the supporting plate (1) is provided with crank sliding block mechanisms (8) at intervals; the rear end of the supporting shaft (13) is connected with a crank (14); the rear surface of the supporting plate (1) is provided with a plurality of supporting frames (9), the supporting frames (9) are arranged at equal intervals up and down, and a plurality of standby connecting rods (10) are arranged on the supporting frames (9); the upper surface of the supporting seat (4) is provided with a plurality of mounting seats (11) which are arranged at equal intervals left and right, and the rear side wall of the supporting plate (1) is provided with a jacket (12).

2. The small-sized mechanical principle science popularization teaching instrument capable of being connected in series according to claim 1, wherein a bearing is installed on the inner side wall of the installation hole (5), and the sliding groove (6) comprises a horizontally arranged sliding groove (6) and a vertically arranged sliding groove (6).

3. The small mechanical principle science popularization teaching instrument capable of being connected in series according to claim 1, wherein the rear end of the supporting shaft (13) is connected with a first limiting head (131) through threads, a mounting groove (132) is formed in the rear side wall of the first limiting head (131), and the mounting groove (132) is matched with the front end of the crank (14) for use; the front end of back shaft (13) is equipped with spacing collar (133), and the front end of spacing collar (133) is equipped with threaded rod (134), is equipped with the external screw thread on the lateral wall of threaded rod (134), goes up threaded rod (134) and overlaps through the screw thread and be equipped with second spacing head (135).

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