CN210949502U

CN210949502U - Crank of high stability

Info

Publication number: CN210949502U
Application number: CN201922067314.4U
Authority: CN
Inventors: 张晓林
Original assignee: Qingdao Bohongsheng Machinery Co ltd
Current assignee: Qingdao Bohongsheng Machinery Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-07
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a crank of high stability, including the crank body of rod and installation carrier, the first fixture block of crank body of rod upper end left side fixedly connected with, installation carrier right side is rotated and is connected with the second fixture block with first fixture block assorted, carry out fixed connection through the mounting between installation carrier and the first fixture block, be equipped with the opening on the lower lateral wall of the crank body of rod, sliding connection has the threaded sleeve in the opening, be equipped with the adjustment mechanism who carries out the regulation to the threaded sleeve in the opening, the telescopic lower extreme fixedly connected with handle of screw thread, the right side cover of handle is equipped with the sleeve. The utility model can adjust the threaded sleeve by arranging the adjusting mechanism, thereby conveniently adjusting the distance between the handle and the rotating axis and playing a labor-saving effect; through setting up the mounting, can play the effect of the fixed crank body of rod, can guarantee the rigidity at the rotation in-process, prevent that it from droing.

Description

Crank of high stability

Technical Field

The utility model relates to a crank technical field especially relates to a crank of high stability.

Background

Loose cranks often make a clicking sound. When the crank problem is detected, the crank is firstly rotated to the horizontal position, the cranks at the two sides are pressed downwards by force, then the crank is rotated for 180 degrees, and the same action is repeated. If the crank will shake, the crank fixing bolt should be fastened.

Crank among the prior art is not convenient for adjust in the use, and the position of handle is apart from the rotation center position and is unadjustable, and the functionality is not strong, and secondly, it is easy not hard up to rotate the in-process, leads to the crank to drop easily.

To this end, we propose a crank with high stability to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a crank with high stability.

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

the utility model provides a crank of high stability, includes the crank body of rod and installation carrier, the first fixture block of crank body of rod upper end left side fixedly connected with, installation carrier right side is rotated and is connected with the second fixture block with first fixture block assorted, carry out fixed connection through the mounting between installation carrier and the first fixture block, be equipped with the opening on the lower lateral wall of the crank body of rod, sliding connection has the threaded sleeve in the opening, be equipped with the adjustment mechanism who carries out the regulation to the threaded sleeve in the opening, the telescopic lower extreme fixedly connected with handle of threaded sleeve, the right side cover of handle is equipped with the sleeve.

Preferably, the mounting includes rotates the carousel of being connected with first fixture block, the equal fixedly connected with dead lever in lower part, two on the left end of carousel all be equipped with the wedge on the dead lever, be equipped with two first recesses on the installation carrier, two all be equipped with in the first recess with two wedge assorted draw-in grooves, two run through on the draw-in groove is close to the one side lateral wall of the crank body of rod and be equipped with the bolt, be equipped with on the wedge with bolt assorted screw hole.

Preferably, two all be equipped with the second recess on the dead lever, two the wedge respectively with two second recess sliding connection, two equal fixedly connected with spring between the bottom of wedge and two second recesses.

Preferably, the side wall all is equipped with the spout about the open-ended, two all be equipped with its assorted slider in the spout, threaded sleeve's the equal fixedly connected with connecting block in both ends about, two the connecting block respectively with two slider fixed connection.

Preferably, adjustment mechanism includes the pivot of being connected with opening right side wall rotation, the pivot is located the coaxial fixedly connected with disc of the outer one end of crank rod, all be equipped with corresponding spacing hole on disc and the crank body of rod lateral wall, it is corresponding spacing downthehole be equipped with assorted spacer pin with it, the opening bottom is rotated and is connected with the threaded rod, be connected through the driving medium transmission between pivot and the threaded rod, threaded rod and threaded sleeve threaded connection.

Preferably, the transmission part comprises a first bevel gear and a second bevel gear, the first bevel gear is coaxially and fixedly connected with one end of the rotating shaft, which is positioned in the opening, the second bevel gear is coaxially and fixedly connected with the threaded rod, and the first bevel gear is meshed with the second bevel gear.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the adjusting mechanism, the threaded sleeve can be adjusted, the distance between the handle and the rotating shaft center can be conveniently adjusted, and the labor-saving effect can be achieved;

2. through setting up the mounting, can play the effect of the fixed crank body of rod, can guarantee the rigidity at the rotation in-process, prevent that it from droing.

Drawings

Fig. 1 is a perspective view of a crank with high stability according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

In the figure: the device comprises a crank rod body 1, a mounting carrier 2, a first clamping block 3, a second clamping block 4, a fixing piece 5, an opening 6, a threaded sleeve 7, an adjusting mechanism 8, a handle 9, a sleeve 10, a rotating disc 11, a fixing rod 12, a wedge-shaped block 13, a first groove 14, a clamping groove 15, a bolt 16, a second groove 17, a spring 18, a connecting block 19, a rotating shaft 20, a disc 21, a limiting pin 22, a threaded rod 23, a transmission piece 24, a first bevel gear 25 and a second bevel gear 26.

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. 1-3, a crank with high stability, including the crank shaft body 1 and the installation carrier 2, the first fixture block 3 of crank shaft body 1 upper end left side fixedly connected with, the installation carrier 2 right side rotates and is connected with the second fixture block 4 of first fixture block 3 assorted, carry out fixed connection through mounting 5 between installation carrier 2 and the first fixture block 3, specifically, mounting 5 includes the carousel 11 of being connected with first fixture block 3 rotation, equal fixedly connected with dead lever 12 in the upper and lower part of the left end of carousel 11, all be equipped with wedge 13 on two dead levers 12, it should be noted that, all be equipped with second recess 17 on two dead levers 12, two wedge 13 respectively with two second recess 17 sliding connection, equal fixedly connected with spring 18 between the bottom of two wedge 13 and two second recess 17, be equipped with two first recesses 14 on the installation carrier 2.

In the utility model, two first grooves 14 are provided with two slots 15 matching with two wedges 13, one side wall of the two slots 15 near the crank shaft body 1 is provided with a bolt 16, the wedges 13 are provided with screw holes matching with the bolt 16, the lower side wall of the crank shaft body 1 is provided with an opening 6, the opening 6 is connected with a threaded sleeve 7 in a sliding way, it is worth mentioning that the left and right side walls of the opening 6 are provided with chutes, the two chutes are provided with sliders matching with the chutes, the left and right ends of the threaded sleeve 7 are fixedly connected with connecting blocks 19, the two connecting blocks 19 are respectively fixedly connected with the two sliders, the opening 6 is provided with an adjusting mechanism 8 for adjusting the threaded sleeve 7, it should be noted that the adjusting mechanism 8 comprises a rotating shaft 20 rotationally connected with the right side wall of the opening 6, one end of the rotating shaft 20 positioned outside the crank shaft body 1 is coaxially and fixedly connected with a disc 21, the outer side walls of the disc 21 and the crank rod body 1 are provided with corresponding limiting holes, and limiting pins 22 matched with the limiting holes are arranged in the corresponding limiting holes.

The utility model discloses in, 6 bottoms of opening are rotated and are connected with threaded rod 23, be connected through the transmission of driving medium 24 transmission between pivot 20 and the threaded rod 23, it needs to explain that, driving medium 24 includes first bevel gear 25 and second bevel gear 26, first bevel gear 25 is located the coaxial fixed connection of one end in opening 6 with pivot 20, second bevel gear 26 and the coaxial fixed connection of threaded rod 23, first bevel gear 25 meshes with second bevel gear 26 mutually, threaded rod 23 and threaded sleeve 7 threaded connection, threaded sleeve 7's lower extreme fixedly connected with handle 9, the right side cover of handle 9 is equipped with sleeve 10.

The utility model discloses when using, carry out fixed connection with the crank body of rod 1 through two draw-in grooves 15 on two dead levers 12 and two wedges 13 cooperation installation carriers 2, guarantee the stability of the crank body of rod 1, when adjusting the position of handle 9, rotating disc 21, disc 21 drives pivot 20 and rotates, pivot 20 drives first bevel gear 25 and rotates, first bevel gear 25 drives second bevel gear 26 and rotates, second bevel gear 26 drives threaded rod 23 and rotates, threaded rod 23 drives threaded sleeve 7 and rotates, threaded sleeve 7 beats handle 9 and removes, thereby adjust the distance between handle 9 and the rotation center.

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 crank of high stability, includes the crank body of rod (1) and installation carrier (2), its characterized in that, the first fixture block of crank body of rod (1) upper end left side fixedly connected with (3), installation carrier (2) right side rotate be connected with first fixture block (3) assorted second fixture block (4), carry out fixed connection through mounting (5) between installation carrier (2) and first fixture block (3), be equipped with opening (6) on the lower lateral wall of the crank body of rod (1), sliding connection has threaded sleeve (7) in opening (6), be equipped with adjustment mechanism (8) that carry out the regulation to threaded sleeve (7) in opening (6), the lower extreme fixedly connected with handle (9) of threaded sleeve (7), the right side cover of handle (9) is equipped with sleeve (10).

2. The crank with high stability as claimed in claim 1, wherein the fixing member (5) comprises a rotating disc (11) rotatably connected with the first clamping block (3), the upper and lower parts of the left end of the rotating disc (11) are both fixedly connected with fixing rods (12), two wedge blocks (13) are arranged on the two fixing rods (12), two first grooves (14) are formed in the installation carrier (2), two clamping grooves (15) matched with the two wedge blocks (13) are formed in the two first grooves (14), a bolt (16) penetrates through the side wall of one side, close to the crank body (1), of the two clamping grooves (15), and a threaded hole matched with the bolt (16) is formed in the wedge block (13).

3. A crank with high stability as claimed in claim 2, wherein the two fixing rods (12) are provided with second grooves (17), the two wedges (13) are slidably connected with the two second grooves (17), and springs (18) are fixedly connected between the two wedges (13) and the bottoms of the two second grooves (17).

4. The crank with high stability according to claim 1, wherein the left and right side walls of the opening (6) are provided with sliding grooves, two sliding blocks matched with the sliding grooves are arranged in the two sliding grooves, the left and right ends of the threaded sleeve (7) are fixedly connected with connecting blocks (19), and the two connecting blocks (19) are respectively fixedly connected with the two sliding blocks.

5. The crank with high stability as claimed in claim 1, wherein the adjusting mechanism (8) comprises a rotating shaft (20) rotatably connected with the right side wall of the opening (6), the rotating shaft (20) is located at one end outside the crank body (1) and is coaxially and fixedly connected with a disc (21), the outer side walls of the disc (21) and the crank body (1) are respectively provided with a corresponding limiting hole, a limiting pin (22) matched with the limiting hole is correspondingly arranged in the limiting hole, the bottom of the opening (6) is rotatably connected with a threaded rod (23), the rotating shaft (20) is in transmission connection with the threaded rod (23) through a transmission member (24), and the threaded rod (23) is in threaded connection with the threaded sleeve (7).

6. A crank of high stability according to claim 5, wherein the transmission member (24) comprises a first bevel gear (25) and a second bevel gear (26), the first bevel gear (25) is coaxially and fixedly connected with one end of the rotating shaft (20) located in the opening (6), the second bevel gear (26) is coaxially and fixedly connected with the threaded rod (23), and the first bevel gear (25) is engaged with the second bevel gear (26).