CN212360477U

CN212360477U - Three-system ratchet structure

Info

Publication number: CN212360477U
Application number: CN202020571991.XU
Authority: CN
Inventors: 张�林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-01-15
Anticipated expiration: 2030-04-16

Abstract

The utility model belongs to the technical field of supporter ratchet structure technique and specifically relates to a three system ratchet structures, including ring body, connecting rod, rolling disc and connecting block, the side at the ring body is fixed to the connecting rod, the rolling disc is installed at the ring body, and the two can rotate relatively, the upper cover of taking the convex handle is installed at the top of rolling disc, and the bottom has the holding ring, central authorities bottom the rolling disc are fixed to the connecting block, have the breach that is C shape on the rolling disc, install at this breach and make ring body and rolling disc stall's locking mechanism, locking mechanism includes cylinder and arc, wherein the cylinder rotates the center department of installing at the breach, the arc articulates in the rim department of breach, install on the cylinder and be used for changing the arc rotation state so that the flexible member of arc and ring body location. The utility model discloses, can be in the same direction as, anticlockwise quick rotation, adjust, whole part is less, is convenient for manufacture, assembly and operation.

Description

Three-system ratchet structure

Technical Field

The utility model relates to a supporter ratchet technical field specifically is a three standard ratchet structures.

Background

At present, ratchet structures have been used in the field of storage racks. The prior art is as follows: application date 2017 1 month 24 days, the novel backup pad that the authorization notice number is CN201820085107.4 discloses, the support arm is the integral type structure that three standard ratchets and fixed plate are constituteed, this scheme simple structure, convenient to use, when not using, can remove the locking, folding shrink has reduced taking to space area, has effectually prevented the injury to the human body, unusual practicality. The article placing shelf convenient to fold disclosed in 2018, 10 and 15 and with the authorized bulletin number of CN201821669648.8 has a connecting part internally provided with three-system ratchets, and the hollow ratchets are in locking fit with the three-system ratchets. All contain the support arm of two symmetrical tooth portions in above-mentioned two schemes, be equipped with between two support arms and strut the portion, every support arm outside has an elastic component (spring), through the elastic component to the support arm application of force, thereby realizes that the tooth portion of support arm and ratchet spare mesh/part separate and realize location locking or control the regulation. But the defects existing in the two schemes are that: because the strutting portions are two groups, the corresponding number of elastic pieces are needed, and the strutting portions are also split, so that the parts structure and the operation and adjustment become complex.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three standard ratchet structures to solve the problem that proposes among the above-mentioned background art.

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

the connecting rod is fixed on the side face of the ring body, the rotating disc is installed on the ring body and can rotate relative to the ring body, an upper cover with a convex handle is installed at the top of the rotating disc, a positioning ring is arranged at the bottom of the rotating disc, the connecting block is fixed to the center of the bottom of the rotating disc, a C-shaped notch is formed in the rotating disc, a locking mechanism capable of enabling the ring body and the rotating disc to stop rotating is installed in the notch, the locking mechanism comprises a cylinder and an arc-shaped piece, the cylinder is installed at the center of the notch in a rotating mode, the arc-shaped piece is hinged to the wheel edge of the notch, and a telescopic rod piece used for changing the rotating state of the arc-shaped piece to enable the arc-shaped piece and the ring body to be positioned is installed.

Preferably, the arc passes through the round pin and installs the rim department at the breach to the bottom cover of round pin is equipped with the torsional spring, and the one end of this torsional spring links firmly to the rolling disc, and the other end is on the arc, and two tip in this arc outside have the outer teeth of a cogwheel, the ring body has the interior teeth of a cogwheel with the outer teeth meshing, flexible member includes hollow rod and interior pole, interior pole is installed in the cylinder, and the bottom cover is equipped with the spring, hollow rod suit is on interior pole, and the bottom is fixed with the spring top.

Preferably, the bottom of the gap is embedded with an elastic sheet, the bottom of the gap is also provided with a vertical stop dog, the top of the hollow rod is abutted against the elastic sheet, the side surface of the hollow rod is contacted with the stop dog, and the bottom of the elastic sheet is close to the stop dog.

Preferably, the bottom of breach has been seted up and has been accomodate the groove, the shell fragment is installed and is being accomodate the inslot, and when the top of hollow rod was not contacted with the shell fragment, the bottom perk of this shell fragment was accomodate the inslot outward, and was contacted with the dog.

Preferably, the outer side of the bottom of the elastic sheet is hinged with a contact pin, the inner side of the ring body is provided with a circle of positioning holes, the rotating disc is provided with a through hole, the contact pin is inserted into the through hole, when the top of the hollow rod is abutted against the bottom of the elastic sheet, the bottom of the contact pin is inserted into any one of the circle of positioning holes, and when the top of the hollow rod is not contacted with the elastic sheet, the bottom of the contact pin leaves from the positioning holes.

Preferably, barrier-free grooves are formed in the two ends of the notch of the rotating disc.

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

when the locking device is used, the outer gear teeth at the left end of the arc-shaped part are meshed with the inner gear teeth of the ring body, the rotating disc can only rotate anticlockwise at the time in an initial state, and the rotating disc can be locked by clockwise rotation. When stirring protruding handle clockwise, can make the upper cover move the rolling disc and rotate to realize hollow rod to the arc application of force, the arc can realize using the round pin to swing as the mid point, when hollow rod rotated the inboard middle part of arc, the outer teeth of a cogwheel at arc both ends and the interior teeth of a cogwheel separation of ring body no longer meshed this moment, and the rolling disc can be in the same direction as or anticlockwise rotation in the ring body this moment. When the right side was stirred to the hollow rod, the wheeling tooth of arc spare right-hand member and the interior wheeling tooth meshing of ring body, hollow rod can't further stir clockwise this moment, and the rolling disc can only clockwise rotate, and anticlockwise rotation will be locked.

The utility model discloses, after ring body relatively fixed, the rolling disc can also can remove single direction rotation along a direction clockwise, anticlockwise rotation in the ring body to realize clockwise or anticlockwise fast turn, so that quick adjustment. Meanwhile, on the basis of realizing the same function, compared with the structure in the prior art, the structure has fewer integral parts and is convenient to produce, manufacture, assemble and operate.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged schematic view of the present invention at A in FIG. 3;

FIG. 5 is a schematic view of the hollow rod of FIG. 3 rotated clockwise to the inner left side of the arcuate member in accordance with the present invention;

FIG. 6 is an enlarged schematic view of the present invention at A in FIG. 5;

figure 7 is a schematic view of the hollow rod of figure 3 rotated clockwise to the middle of the inside of the arcuate member in accordance with the present invention;

figure 8 is a schematic view of the hollow rod of figure 3 rotated clockwise to the right inner side of the arcuate member in accordance with the present invention;

FIG. 9 is a schematic view of one end of the arcuate member of the present invention locked to the ring body and the other end of the arcuate member located in the unobstructed recess;

fig. 10 is a schematic view of the explosion structure of the present invention.

In the figure: the device comprises a ring body 1, a connecting rod 2, a rotating disc 3, an upper cover 4, a positioning ring 5, a convex handle 6, a connecting block 7, an accessible groove 8, an arc-shaped part 9, a cylinder 10, a stop 11, a hollow rod 12, an inner rod 13, a spring 14, an inner gear tooth 15, an outer gear tooth 16, a notch 17, an accommodating groove 18, a spring plate 19, a pin 20, a through hole 21, a positioning hole 22, a pin 23, a torsion spring 24 and a return spring 25.

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 to 10, the present invention provides a technical solution:

a three-system ratchet structure comprises a ring body 1, a connecting rod 2, a rotating disc 3 and a connecting block 7, wherein the connecting rod 2 is fixed on the side face of the ring body 1, the rotating disc 3 is installed on the ring body 1 and can rotate relative to the ring body 1, an upper cover 4 with a convex handle 6 is installed at the top of the rotating disc 3, a positioning ring 5 is arranged at the bottom of the rotating disc 3, the connecting block 7 is fixed to the center of the bottom of the rotating disc 3, a C-shaped notch 17 is formed in the rotating disc 3, a locking mechanism capable of enabling the ring body 1 and the rotating disc 3 to stop rotating is installed at the notch 17 and comprises a cylinder 10 and an arc-shaped piece 9, the cylinder 10 is rotatably installed at the center of the notch 17, the arc-shaped piece 9 is hinged to the wheel edge of the notch 17, and a telescopic rod piece used for changing the rotating state of the arc-shaped piece.

Specifically, the arc 9 is installed at the wheel rim of breach 17 through round pin 23 to the bottom cover of round pin 23 is equipped with torsional spring 24, and one end of this torsional spring 24 links firmly to rolling disc 3, and the other end is on arc 9, and two tip in this arc 9 outside have outer teeth of a cogwheel 16, ring body 1 has interior teeth 15 with outer teeth of a cogwheel 16 meshing, flexible member includes hollow rod 12 and interior pole 13, interior pole 13 is installed in cylinder 10, and the bottom cover is equipped with spring 14, hollow rod 12 suit is on interior pole 13, and the bottom is fixed with spring 14 top. As shown in fig. 3 and 10, the C-shaped notch 17 is formed in the rotating disc 3, so that the locking mechanism can be conveniently installed. The cylinder 10 is mounted centrally in the recess 17 (the rotary disc 3) and the arc-shaped elements 9 are located at the edge of the recess 17. Because the arc 9 is hinged at the edge of the notch 17 through the pin 23, when the arc 9 is shifted by the convex handle 6, the upper cover 4 can drive the rotating disc 3 to rotate, so that the force applied to the arc 9 by the telescopic rod piece is realized, and the arc 9 can swing left and right by taking the pin 23 as a middle point. Due to the torsion spring 24, one end of the arc-shaped part 9 can be abutted to the ring body 1, namely, the outer gear teeth 16 at one end of the arc-shaped part 9 are meshed with the inner gear teeth 15 of the ring body 1, so that the locking of the arc-shaped part 9 and the ring body 1 is realized, namely, the ring body 1 and the rotating disc 3 can only realize continuous rotation in the same direction. For convenience of description, in the present embodiment, the ring body 1 is fixed, and the rotating disc 3 rotates, so that the outer teeth 16 at the left end of the arc-shaped member 9 are engaged with the inner teeth 15 of the ring body 1, and the rotating disc 3 is in an initial state, and can only rotate counterclockwise, and the clockwise rotation is locked.

Specifically, the bottom of the notch 17 is embedded with an elastic sheet 19, the bottom of the notch 17 is further provided with a vertical stop block 11, the top of the hollow rod 12 abuts against the elastic sheet 19, the side surface of the hollow rod contacts with the stop block 11, and the bottom of the elastic sheet 19 is close to the stop block 11. The bottom of breach 17 has been seted up and has been accomodate groove 18, shell fragment 19 is installed and is being accomodate the inslot 18, when the top of hollow pole 12 does not contact with shell fragment 19, the bottom perk of this shell fragment 19 is outside accomodating groove 18, and contacts with dog 11. The outer side of the bottom of the elastic sheet 19 is hinged with a contact pin 20, the inner side of the ring body 1 is provided with a circle of positioning holes 22, the rotating disc 3 is provided with a through hole 21, the contact pin 20 is inserted into the through hole 21, when the top of the hollow rod 12 is abutted against the bottom of the elastic sheet 19, the bottom of the contact pin 20 is inserted into any one of the circle of positioning holes 22, and when the top of the hollow rod 12 is not contacted with the elastic sheet 19, the bottom of the contact pin 20 is separated from the positioning holes 22. As shown in fig. 3 and 4, in the initial state, when the hollow rod 12 is still at the bottom of the notch 17, since the bottom end of the elastic piece 19 is pushed into the accommodating groove 18 by the top of the hollow rod 12, the top end of the elastic piece 19 is hinged in the accommodating groove 18, the bottom of the elastic piece 19 is connected with a return spring 25, the other end of the return spring 25 is embedded in a spring hole (not shown in the figure) at the bottom of the accommodating groove 18, the pin 20 outside the bottom end of the elastic piece 19 is inserted into any one of the circle of positioning holes 22 through the through hole 21, at this time, the locking between the rotating disc 3 and the ring body 1 is realized, that is, the whole ratchet structure cannot realize the left-right rotation, and is in. As shown in fig. 5 and 6, when the top of the hollow rod 12 rotates with the cylinder 10 until completely leaving the spring plate 19 and not contacting the spring plate 19, the bottom end of the spring plate 19 pops out of the accommodating groove 18, the bottom of the pin 20 leaves from the positioning hole 22, and the bottom of the pin 20 is located above the inner gear teeth 15, and the two do not contact and do not interfere with each other, so that the locking state between the rotating disc 3 and the ring body 1 can be released. As shown in fig. 7 and 8, the whole ratchet structure can rotate left or right along with the hollow rod 12 at the inner side position of the arc-shaped member 9, as shown in fig. 4 and 6, the inner diameter of the through hole 21 (positioning hole 22) in this embodiment is slightly larger than the diameter of the pin 20, so that the pin 20 has a certain clearance, and the influence that the through hole 21 may be blocked by a fine motion at the vertical insertion angle of the pin 20 is avoided.

Specifically, the two ends of the notch 17 of the rotating disc 3 are both provided with an accessible groove 8. As shown in fig. 9, when the outer teeth 16 at any one of the two ends of the arc-shaped member 9 are engaged with the inner teeth 15 of the ring body 1 (the contact end is a tilting end, and the other end is a pressing end), the pressing end of the arc-shaped member 9 can be accommodated due to the barrier-free groove 8, and the distance d between the tilting end and the corresponding barrier-free groove 8 is reduced. In this embodiment, the elastic coefficient of the spring 14 is greater than the elastic coefficients of the torsion spring 24 and the return spring 25 (the elastic piece 19), and the torsion generated by the torsion spring 24 is smaller than the elastic force of the spring 14 to the hollow rod 12, so that the hollow rod 12 can be ensured to jack up the right end of the arc-shaped piece 9 when rotating to the right end of the arc-shaped piece 9 as shown in fig. 8, thereby realizing that the rotating disc 3 can only rotate clockwise and the counterclockwise rotation is locked. The elastic force produced by the elastic sheet 19 is smaller than the elastic force of the spring 14 on the hollow rod 12, so that the bottom of the inserting needle 20 can be conveniently inserted into any one of the circle of positioning holes 22, and the locking between the rotating disc 3 and the ring body 1 is ensured, namely, the whole ratchet structure cannot realize left-right rotation and is in a locking state. In this embodiment, the distance d is much smaller than the diameter of the top of the hollow rod 12. While the top of the hollow bar 12 can be rounded (fig. 8) or oval to facilitate the entry of the hollow bar 12 from the initial state to the inside of the arc-shaped member 9, the head of the pin 20 is oval (fig. 4 or 6) to facilitate its insertion into the positioning hole 22.

As shown in fig. 1, by arranging the protruding handle 6, when the protruding handle 6 is shifted, the upper cover 4 can drive the rotating disc 3 to rotate, so that the telescopic rod piece can apply force to the arc-shaped piece 9, and the arc-shaped piece 9 can swing left and right by taking the pin 23 as a midpoint. As shown in fig. 2, due to the positioning ring 5, the rotating disc 3 can be installed in the ring body 1, and the relative rotation between the ring body 1 and the rotating disc 3 can be realized. Due to the arrangement of the connecting rod 2, the ratchet wheel structure can be conveniently gripped when in use, and due to the arrangement of the connecting block 7, a bayonet groove in a hexagon socket or other nut shape can be formed at the bottom of the connecting block 7. As shown in fig. 4, in the initial state, the top of the hollow rod 12 abuts against the spring plate 19, and the side of the hollow rod 12 contacts with the stopper 11, and due to the spring plate 19 and the stopper 11, the hollow rod 12 cannot automatically slide out of the notch 17 due to the elastic force generated between the hollow rod 12 and the spring plate 19 and the stopper 11, and the hollow rod 12 can only slide to a desired gear position when manually adjusted.

The utility model discloses when using, the outer wheel tooth 16 of the 9 left ends of arc and the interior wheel tooth 15 meshing of ring body 1, for initial condition, rolling disc 3 can only anticlockwise rotation this moment, and clockwise rotation will be locked. When stirring protruding handle 6 clockwise, can make upper cover 4 drive rolling disc 3 rotate to realize hollow rod 12 to the application of force of arc 9, arc 9 can realize using round pin 23 to swing as the mid point, when hollow rod 12 rotated the inboard middle part of arc 9, the outer wheel tooth 16 at arc 9 both ends and the interior wheel tooth 15 separation of ring 1 no longer meshed this moment, and rolling disc 3 can be in the same direction as or anticlockwise rotation in ring 1 this moment. When the hollow rod 12 is shifted to the right side, the outer gear teeth 16 at the right end of the arc-shaped part 9 are meshed with the inner gear teeth 15 of the ring body 1, at the moment, the hollow rod 12 cannot be further shifted clockwise, the rotating disc 3 can only rotate clockwise, and the anticlockwise rotation is locked.

The utility model discloses, after ring body 1 relatively fixed, rotating disc 3 can also can remove single direction rotation along clockwise, anticlockwise rotation in ring body 1 of a direction to realize clockwise or anticlockwise fast turn, so that quick adjustment. Meanwhile, on the basis of realizing the same function, compared with the structure in the prior art, the structure has fewer integral parts and is convenient to produce, manufacture, assemble and operate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a three standard ratchet structures, includes ring body (1), connecting rod (2), rolling disc (3) and connecting block (7), its characterized in that: the connecting rod (2) is fixed on the side surface of the ring body (1), the rotating disc (3) is arranged on the ring body (1) and can rotate relatively, an upper cover (4) with a convex handle (6) is arranged at the top of the rotating disc (3), a positioning ring (5) is arranged at the bottom, the connecting block (7) is fixed to the center of the bottom of the rotating disc (3), a C-shaped notch (17) is arranged on the rotating disc (3), a locking mechanism which can stop the ring body (1) and the rotating disc (3) from rotating is arranged on the gap (17), the locking mechanism comprises a cylinder (10) and an arc-shaped piece (9), wherein the cylinder (10) is rotatably mounted in the center of the notch (17), the arc-shaped piece (9) is hinged at the rim of the notch (17), the cylinder (10) is provided with a telescopic rod piece which is used for changing the rotating state of the arc-shaped piece (9) so as to position the arc-shaped piece (9) and the ring body (1).

2. A three-system ratchet structure according to claim 1, wherein: the wheel edge department at breach (17) is installed through round pin (23) to arc (9) to the bottom cover of round pin (23) is equipped with torsional spring (24), and the one end of this torsional spring (24) links firmly to rolling disc (3), and the other end is connected firmly on arc (9), and two tip in this arc (9) outside have outer teeth of a cogwheel (16), ring body (1) have with outer teeth of a cogwheel (16) meshed inner teeth (15), flexible member includes hollow rod (12) and interior pole (13), interior pole (13) are installed in cylinder (10), and the bottom cover is equipped with spring (14), hollow rod (12) suit is on interior pole (13), and the bottom is fixed with spring (14) top.

3. A three-system ratchet structure according to claim 2, wherein: the bottom of the notch (17) is embedded with an elastic sheet (19), the bottom of the notch (17) is also provided with a vertical stop block (11), the top of the hollow rod (12) is abutted against the elastic sheet (19), the side surface of the hollow rod is contacted with the stop block (11), and the bottom of the elastic sheet (19) is close to the stop block (11).

4. A three-system ratchet structure according to claim 3, wherein: the bottom of breach (17) has been seted up and has been accomodate groove (18), shell fragment (19) are installed in accomodating groove (18), and when the top of hollow pole (12) did not contact with shell fragment (19), the bottom perk of this shell fragment (19) was outside accomodating groove (18), and with dog (11) contact.

5. A three-system ratchet structure according to claim 3 or 4, wherein: the outer side of the bottom of the elastic sheet (19) is hinged with a contact pin (20), a circle of positioning holes (22) are formed in the inner side of the ring body (1), a through hole (21) is formed in the rotating disc (3), the contact pin (20) is inserted into the through hole (21), when the top of the hollow rod (12) is abutted to the bottom of the elastic sheet (19), the bottom of the contact pin (20) is inserted into any one of the circle of positioning holes (22), and when the top of the hollow rod (12) is not in contact with the elastic sheet (19), the bottom of the contact pin (20) leaves from the positioning holes (22).

6. A three-system ratchet structure according to claim 1, wherein: and barrier-free grooves (8) are formed at two ends of the notch (17) of the rotating disc (3).