CN211427652U

CN211427652U - Junior middle school student's teaching is with assembly of being convenient for

Info

Publication number: CN211427652U
Application number: CN201922344269.2U
Authority: CN
Inventors: 张熹桐
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-04
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a junior middle school student's teaching is with assembly of being convenient for, including base and third stopper, base fixed surface is provided with the support, the support top is provided with big-end bolt, big-end bolt one side is linked there is the crossbeam, wherein, crossbeam bottom fixed mounting has first couple, first couple surface is connected with the second couple, second couple one end is connected with the connecting block, the connecting block both ends are provided with first stopper, first stopper one side is provided with the panel, the inside third stopper that is provided with of first stopper. This assembly pulley of being convenient for equipment is used in junior middle school student's teaching links together first pulley and second pulley through the second bolt, makes the integral erection simple effective, and the third stopper can restrict the connecting block position to make the connecting block be located the position of assembly pulley central line, the adjustment crossbeam makes crossbeam and support perpendicular, then screws up big head bolt, just so accomplishes the leg erection of assembly pulley.

Description

Junior middle school student's teaching is with assembly of being convenient for

Technical Field

The utility model relates to a assembly pulley production technical field specifically is an assembly pulley of being convenient for equipment is used in junior middle school student's teaching.

Background

The pulley block is a simple machine assembled by a plurality of movable pulleys and fixed pulleys, and can save labor and change the force application direction.

The labor saving of the pulley block is determined by the number of rope strands, the total weight of the heavy object and the movable pulley is born by n strands of ropes, the force for lifting the heavy object is 1/n of the total weight, the mechanical efficiency of the heavy object is determined by the gravity of a pulled object, the gravity of the movable pulley, friction and the like, the pulley is a small wheel with a groove at the periphery and can rotate around a shaft, a simple machine which consists of a disc with a groove and a flexible cable (rope, adhesive tape, steel cable, chain and the like) crossing the disc and can rotate around the central shaft is called as the pulley, a physical course in the beginning has related courses, a teacher in a classroom can assemble a plurality of groups of pulley blocks on site more under the condition to achieve the purpose of teaching practice, but the assembly time is too much to delay a large amount of teaching time.

The pulley block used in the current market for meeting the needs of junior high school teaching is various in variety and uneven in variety, most of the pulley blocks are assembled on site, and due to the fact that the pulley blocks are complex and not easy to assemble, a large amount of classroom time can be delayed, and classroom experiment classes of teachers cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a junior middle school student's teaching is with assembly pulley convenient to equipment to solve the assembly pulley variety that present market that above-mentioned background art provided is used in order to satisfy junior middle school's teaching, the kind is also uneven, and most of them are when field assembly, because more loaded down with trivial details and difficult equipment, and then can delay a large amount of classroom times, and then can't satisfy the problem that teacher's classroom experiment class used.

In order to achieve the above object, the utility model provides a following technical scheme: a pulley block convenient to assemble for junior middle school student teaching comprises a base and a third limiting block, wherein a bracket is fixedly arranged on the surface of the base, a big head bolt is arranged at the top of the bracket, a cross beam is connected to one side of the big head bolt, wherein,

a first hook is fixedly mounted at the bottom of the cross beam, the surface of the first hook is connected with a second hook, one end of the second hook is connected with a connecting block, first limiting blocks are arranged at two ends of the connecting block, a panel is arranged on one side of each first limiting block, a first bolt is arranged on the surface of the panel, a second bolt is arranged on one side of each first bolt, and a second limiting block is arranged on the surface of each second bolt;

second stopper one end is provided with first pulley, first pulley surface is provided with first pulley groove, first pulley groove one end is provided with the second pulley, the second pulley surface is provided with the second pulley groove, second pulley groove surface is provided with the haulage rope, haulage rope one end is connected with the cable pole, the inside third stopper that is provided with of first stopper.

Preferably, the second hook and the first hook are the same in shape and size, the second hook is arranged at the two ends of the panel, and the two second hooks are symmetrical to the middle parting line.

Preferably, the first bolt and the second bolt have the same cross-sectional shape, but the maximum diameter length of the first bolt is greater than that of the second bolt.

Preferably, the width of the first pulley groove is the same as the width of the second pulley groove, but the diameter of the first pulley is smaller than the diameter of the second pulley.

Preferably, the connection part of the bracket and the cross beam forms threaded connection through a large-head bolt.

Preferably, the traction rope is connected with the first pulley and the second pulley in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that: this junior middle school student's teaching is with assembly pulley of being convenient for:

1. the device is provided with the second pulley in first pulley one side, and first pulley and second pulley both sides are provided with the second stopper, second stopper one end is provided with the panel, the panel surface is provided with the second bolt, during the installation, penetrate the second bolt in two mounting holes on panel surface, then twist two blocks of second stoppers on the second bolt respectively, also twist first pulley and second pulley on the second bolt after that, then install a second stopper again on first pulley and second pulley surface again, install the panel at the reverse side at last, just so accomplish the pulley installation in the assembly pulley, make the integral erection simple effective.

2. The device is provided with two sets of first stoppers at the panel both ends, pass first bolt from the mounting hole during installation, then twist first stopper at first bolt, cup joint connecting block one end in first stopper after that, the connecting block other end also cup joints a first stopper, at last install a panel, screw up first bolt, because the inside third stopper that is provided with of first stopper, the third stopper can restrict the connecting block position, thereby make the connecting block be located the position of assembly pulley central line, and then guarantee the function normal of assembly pulley.

3. The device base with between fixed connection together, and be provided with the crossbeam in support one end, be in the same place through big-end bolt threaded connection between crossbeam and the support, during the use, with big-end bolt counter-clockwise turning, make the crossbeam can reciprocate, adjust the crossbeam after that, make crossbeam and support perpendicular, then tighten big-end bolt, just so accomplish the support mounting of assembly pulley to the time of the equipment that has significantly reduced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the pulley block structure of the present invention;

fig. 3 is a schematic sectional view of the pulley block of the present invention.

In the figure: 1. a base; 2. a support; 3. a big head bolt; 4. a cross beam; 5. a first hook; 6. a second hook; 7. connecting blocks; 8. a first stopper; 9. a panel; 10. a first bolt; 11. a second bolt; 12. a second limiting block; 13. a first pulley; 14. a first pulley groove; 15. a second pulley; 16. a second pulley groove; 17. a hauling rope; 18. a cable rod; 19. and a third limiting block.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a pulley block convenient to assemble for junior middle school student teaching comprises a base 1, a support 2, a big-end bolt 3, a beam 4, a first hook 5, a second hook 6, a connecting block 7, a first limiting block 8, a panel 9, a first bolt 10, a second bolt 11, a second limiting block 12, a first pulley 13, a first pulley groove 14, a second pulley 15, a second pulley groove 16, a traction rope 17, a cable rod 18 and a third limiting block 19, wherein the support 2 is fixedly arranged on the surface of the base 1, the joint of the support 2 and the beam 4 forms threaded connection through the big-end bolt 3, the big-end bolt 3 rotates anticlockwise to enable the beam 4 to move up and down, then the beam 4 is adjusted to enable the beam 4 to be perpendicular to the support 2, then the big-end bolt 3 is screwed down, the big-end bolt 3 is arranged at the top of the support 2, the beam 4 is connected to one side of the big-end bolt 3,

the pulley block hanging device is characterized in that a first hook 5 is fixedly mounted at the bottom of the cross beam 4, a second hook 6 is connected to the surface of the first hook 5, the second hook 6 is identical to the first hook 5 in shape and size, second hooks 6 are arranged at two ends of a panel 9, the two second hooks 6 are symmetrical to a neutral line, the second hooks 6 and the first hooks 5 are hung together, so that a pulley block can be hung at the bottom of the cross beam 4, a connecting block 7 is connected to one end of each second hook 6, first limiting blocks 8 are arranged at two ends of each connecting block 7, the panel 9 is arranged on one side of each first limiting block 8, first bolts 10 are arranged on the surface of the panel 9, the first bolts 10 are identical to the cross sections of the second bolts 11, the maximum diameter length of the first bolts 10 is larger than the maximum diameter length of the second bolts 11, the first bolts 10 and the second bolts 11 are sequentially screwed, and accordingly first pulleys 13 are, The second pulley 15 is connected with the connecting block 7, a second bolt 11 is arranged on one side of the first bolt 10, and a second limiting block 12 is arranged on the surface of the second bolt 11;

a first pulley 13 is arranged at one end of the second limiting block 12, a first pulley groove 14 is arranged on the surface of the first pulley 13, the width of the first pulley groove 14 is the same as that of a second pulley groove 16, but the diameter of the first pulley 13 is smaller than that of the second pulley 15, a traction rope 17 is correspondingly threaded in the first pulley groove 14 and the second pulley groove 16 on the surfaces of the first pulley 13 and the second pulley 15, so that the traction rope 17 in the first pulley groove 14 and the second pulley groove 16 cannot interfere with each other, a second pulley 15 is arranged at one end of the first pulley groove 14, a second pulley groove 16 is arranged on the surface of the second pulley 15, a traction rope 17 is arranged on the surface of the second pulley groove 16, the traction rope 17 is slidably connected with the first pulley 13 and the second pulley 15, and when the pulley block is installed, the traction rope 17 is pulled, the traction rope 17 slides on the surfaces of the first pulley 13 and the second pulley 15, and then form the fixed pulley principle, haulage rope 17 one end is connected with cable pole 18, first stopper 8 is inside to be provided with third stopper 19.

The working principle is as follows: when the pulley block convenient to assemble for junior middle school student teaching is used, the large-head bolt 3 is rotated anticlockwise to enable the beam 4 to move up and down, then the beam 4 is adjusted to enable the beam 4 to be vertical to the bracket 2, then the large-head bolt 3 is screwed, the base 1 is stably placed on the horizontal ground, then the first bolt 10 penetrates through the mounting hole, then the first limiting block 8 is screwed on the first bolt 10, then one end of the connecting block 7 is sleeved in the first limiting block 8, the other end of the connecting block 7 is also sleeved with the first limiting block 8, finally a panel 9 is mounted, meanwhile, the second bolt 11 penetrates through the two mounting holes on the surface of the panel 9, then the two second limiting blocks 12 are respectively screwed on the second bolt 11, then the first pulley 13 and the second pulley 15 are also screwed on the second bolt 11, then the second limiting block 12 is mounted on the surfaces of the first pulley 13 and the second pulley 15, finally, the panel 9 is installed on the reverse side, the first bolt 10 and the second bolt 11 are sequentially screwed, the third limiting block 19 is arranged inside the first limiting block 8, the third limiting block 19 can limit the position of the connecting block 7, so that the connecting block 7 is located on the position of the center line of the pulley block, the second hook 6 installed in the center of the surface of the connecting block 7 is located on the position of the center line of the pulley block, the pulley block is installed, the second hook 6 and the first hook 5 are hung together, and finally the traction rope 17 is correspondingly threaded on the pulley block, so that the pulley block is convenient to assemble for junior middle school teaching.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a junior middle school student's teaching is with assembly of being convenient for, includes base (1) and third stopper (19), its characterized in that: the surface of the base (1) is fixedly provided with a bracket (2), the top of the bracket (2) is provided with a big head bolt (3), one side of the big head bolt (3) is connected with a beam (4), wherein,

a first hook (5) is fixedly mounted at the bottom of the cross beam (4), a second hook (6) is connected to the surface of the first hook (5), a connecting block (7) is connected to one end of the second hook (6), first limiting blocks (8) are arranged at two ends of the connecting block (7), a panel (9) is arranged on one side of each first limiting block (8), a first bolt (10) is arranged on the surface of the panel (9), a second bolt (11) is arranged on one side of each first bolt (10), and a second limiting block (12) is arranged on the surface of each second bolt (11);

second stopper (12) one end is provided with first pulley (13), first pulley (13) surface is provided with first pulley groove (14), first pulley groove (14) one end is provided with second pulley (15), second pulley (15) surface is provided with second pulley groove (16), second pulley groove (16) surface is provided with haulage rope (17), haulage rope (17) one end is connected with cable pole (18), first stopper (8) inside is provided with third stopper (19).

2. The assembly-facilitating pulley block for junior middle school student teaching according to claim 1, wherein: the second hook (6) is the same as the first hook (5) in shape and size, the second hooks (6) are arranged at two ends of the panel (9), and the two second hooks (6) are symmetrical to the middle parting line.

3. The assembly-facilitating pulley block for junior middle school student teaching according to claim 1, wherein: the first bolt (10) and the second bolt (11) are identical in cross section shape, but the maximum diameter length of the first bolt (10) is larger than that of the second bolt (11).

4. The assembly-facilitating pulley block for junior middle school student teaching according to claim 1, wherein: the width of the first pulley groove (14) is the same as that of the second pulley groove (16), but the diameter of the first pulley (13) is smaller than that of the second pulley (15).

5. The assembly-facilitating pulley block for junior middle school student teaching according to claim 1, wherein: the connection part of the bracket (2) and the cross beam (4) forms threaded connection through a large-head bolt (3).

6. The assembly-facilitating pulley block for junior middle school student teaching according to claim 1, wherein: the traction rope (17) is connected with the first pulley (13) and the second pulley (15) in a sliding mode.