CN219613416U - Easily-detached and replaced inserted link wheel - Google Patents

Abstract

The utility model relates to the technical field of rod inserting wheels and discloses an easy-to-detach and easy-to-replace rod inserting wheel, which comprises a rod inserting wheel system and a wheel frame system, wherein the rod inserting wheel system comprises a wheel seat and a rod inserting fixedly connected to the upper end of the wheel seat, a clamping column part and a supporting column part for supporting and pressing the clamping column part are further arranged on the rod inserting, an ejection bolt for ejecting the rod inserting is arranged on a socket head through threads, after the rod inserting is completely inserted into a connecting slot, the lower end of the ejection bolt pushes the supporting column part downwards through screwing the ejection bolt on the socket head, the ejection column moves downwards and pushes the clamping column, the clamping column extends out of a through hole and is inserted into a clamping hole for clamping and fixing, when the rod inserting wheel frame is replaced, only the ejection bolt is required to be unscrewed, the ejection bolt is not pushed downwards, the ejection column is retracted into a position-keeping cavity under the action of an elastic ring, the clamping column is released from the position-keeping cavity, and the rod inserting is conveniently pulled out of the connecting slot without damaging the wheel frame.

Description

Easily-detached and replaced inserted link wheel

Technical Field

The utility model relates to the technical field of rod inserting wheels, in particular to an easily-detachable and replaceable rod inserting wheel.

Background

Office chairs are various chairs equipped for convenience in daily work and social activities. Office chairs are divided into a narrow sense and a broad sense by office partners, wherein the narrow sense office chair refers to a backrest chair for a person to sit when the person performs a tabletop work in a sitting posture state, the broad sense office chair refers to all chairs used in offices, and a wheel frame of the conventional office chair is provided with a plug-in rod wheel for moving and supporting.

Most of the existing connection of the inserted link wheel and the wheel frame is inserted, when the connection is detached, the rubber hammer is needed to be used for hammering the wheel frame, so that the inserted link wheel shakes down from the wheel frame, the detachment is inconvenient, and the wheel frame is damaged.

Disclosure of Invention

The utility model aims to provide an easily-detached and replaced plunger wheel, which aims to solve the problems that most of plunger wheels and wheel frames are connected in the prior art, when the plunger wheel is detached, a rubber hammer is needed to be used for hammering the wheel frames to enable the plunger wheel to shake off from the wheel frames, the detachment is inconvenient, and the wheel frames are damaged.

In a first aspect, the present utility model provides an easily removable and replaceable plunger wheel, comprising:

the wheel inserting system comprises a wheel seat and an inserting rod fixedly connected to the upper end of the wheel seat, and the inserting rod is further provided with a clamping column part and a supporting column part for supporting and pressing the clamping column part;

the wheel carrier system comprises a hack lever and a socket head fixedly connected to the hack lever, and an ejection bolt for ejecting the inserted bar is arranged on the socket head in a threaded manner.

In a specific embodiment, the wheel seat comprises a shaft bracket and a reinforcing block fixedly arranged on one side of the shaft bracket, and a pulley is arranged on the shaft bracket.

In a specific embodiment, the inserted link is fixedly connected to the reinforcing block, the upper end of the inserted link is provided with a yielding cavity, two sides of the yielding cavity are provided with through holes for installing the clamping column, and the side wall of the yielding cavity is provided with a moving groove.

In a specific embodiment, the clamping column part comprises a clamping column which is inserted and installed in the through hole, an elastic ring is connected to the clamping column, and the elastic ring is connected to the side wall of the abdication cavity.

In a specific embodiment, one end of the clamping post extending into the yielding cavity is provided with an inclined surface.

In a specific embodiment, the prop member comprises a prop inserted in the abdication cavity and a bump fixedly connected to the prop, the bump is clamped and connected in the moving groove, the lower end of the bump is fixedly connected with a reset spring, and the other end of the reset spring is fixedly connected in the moving groove.

In a specific embodiment, the diameter of the post is less than the diameter of the relief cavity and the length of the post is less than the depth of the relief cavity.

In a specific embodiment, the lower end of the socket head is provided with a connecting slot, the inner wall of the connecting slot is provided with a clamping hole, and the lower end of the ejection bolt extends into the connecting slot.

In a specific embodiment, the diameter of the connection socket matches the diameter of the socket.

In a specific embodiment, the diameter of the clamping hole matches the diameter of the clamping post.

According to the easily-detachable and replaceable inserted link wheel, the clamping columns are inserted and installed in the through holes formed in the inserted links, the supporting column parts used for supporting and pressing the clamping column parts are further installed in the yielding cavities formed in the inserted links, when the inserted links of the inserted link wheel system are inserted into the socket heads arranged in the wheel frame system, the clamping columns are in the state of being contracted in the yielding cavities under the action of the elastic rings, so that the inserted links are more convenient to insert into the connecting slots, after the inserted links are completely inserted into the connecting slots, the supporting column parts are pressed down by screwing the ejection bolts on the socket heads, the supporting column parts are pushed down, the clamping column parts extend out of the through holes and are inserted into the clamping holes to be clamped and fixed, and when the replacement is carried out, the supporting column parts are not pressed down by unscrewing the ejection bolts any more, the supporting column parts are moved up under the action of the elastic rings, the clamping column is retracted into the yielding cavities under the action of the elastic rings, the clamping column parts are retracted into the yielding cavities, the clamping column parts are convenient to detach the inserted links from the connecting slots, and the wheel frame system is not damaged and the connecting slots are not required to be detached conveniently.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a gear train according to an embodiment of the present utility model.

Fig. 3 is an enlarged view at a in fig. 2.

FIG. 4 is a front view of an insertion wheel system according to an embodiment of the present utility model.

Fig. 5 is an enlarged view at B in fig. 4.

Fig. 6 is a cross-sectional view of a wheel frame according to an embodiment of the present utility model.

Icon: 100. the wheel system is inserted; 110. a wheel seat; 111. a shaft bracket; 112. a reinforcing block; 113. a pulley; 120. a rod; 121. a relief cavity; 122. a through hole; 123. a moving groove; 130. clamping the column piece; 131. a clamping column; 132. an elastic ring; 140. a prop; 141. a top column; 142. a bump; 143. a return spring; 200. a wheel frame system; 210. a hack lever; 220. a socket head; 221. a connection slot; 222. a clamping hole; 230. and (5) ejecting the bolt.

Detailed Description

Because the connection of inserted link wheel and wheel carrier among the prior art is mostly inserted, when dismantling, need adopt the rubber hammer to hammer the wheel carrier and make the inserted link wheel shake from the wheel carrier, dismantle comparatively inconvenient, and can cause the damage to the wheel carrier. Therefore, the inventor provides a easy-to-detach and easy-to-replace inserted link wheel through research, only need unscrew the ejection bolt for the ejection bolt no longer pushes down the prop member, and under reset spring's effect, the prop moves up, and the card post is retracted under the effect of elastic ring and is put down the intracavity, releases the joint, conveniently pulls out the inserted link from the connection slot, thereby solves above-mentioned defect.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 to 6, an embodiment of the present utility model provides an easily removable and replaceable plunger wheel, which includes:

the wheel inserting system 100 comprises a wheel seat 110 and a rod inserting 120 fixedly connected to the upper end of the wheel seat 110, wherein the rod inserting 120 is also provided with a clamping column piece 130 and a column abutting piece 140 for abutting against the clamping column piece 130;

the wheel frame system 200, the wheel frame system 200 comprises a rack bar 210 and a socket head 220 fixedly connected to the rack bar 210, and an ejection bolt 230 for ejecting the insert bar 120 is mounted on the socket head 220 in a threaded manner.

Specifically, the wheel mount 110 includes a shaft frame 111 and a reinforcing block 112 fixedly provided at one side of the shaft frame 111, and a pulley 113 is mounted on the shaft frame 111.

The insert rod 120 is fixedly connected to the reinforcing block 112, a yielding cavity 121 is formed in the upper end of the insert rod 120, through holes 122 for installing the clamping column 130 are formed in two sides of the yielding cavity 121, and a moving groove 123 is formed in the side wall of the yielding cavity 121.

The clamping column 130 comprises a clamping column 131 which is inserted and installed in the through hole 122, an elastic ring 132 is connected to the clamping column 131, and the elastic ring 132 is connected to the side wall of the abdication cavity 121.

Further, an end of the clamping post 131 extending into the yielding cavity 121 is provided with an inclined surface.

Specifically, the prop member 140 includes a prop member 141 inserted in the abdication cavity 121 and a bump 142 fixedly connected to the prop member 141, the bump 142 is connected to the moving slot 123 in a snap fit manner, a return spring 143 is fixedly connected to a lower end of the bump 142, and the other end of the return spring 143 is fixedly connected to the moving slot 123.

Further, the diameter of the stem 141 is smaller than the diameter of the relief cavity 121, and the length of the stem 141 is smaller than the depth of the relief cavity 121.

The lower end of the socket head 220 is provided with a connecting slot 221, the inner wall of the connecting slot 221 is provided with a clamping hole 222, and the lower end of the ejection bolt 230 extends into the connecting slot 221.

The clamping column 131 is inserted and installed in the through hole 122 formed in the inserting rod 120, the supporting column 140 for supporting and pressing the clamping column 130 is further installed in the yielding cavity 121 formed in the inserting rod 120, when the inserting rod 120 of the inserting wheel train 100 is inserted into the socket head 220 formed in the wheel train 200, the clamping column 131 is in a state of being contracted in the yielding cavity 121 under the action of the elastic ring 132, so that the inserting rod 120 is more convenient to insert into the connecting slot 221, after the inserting rod 120 is completely inserted into the connecting slot 221, the lower end of the supporting column 140 is pressed down by screwing the ejection bolt 230 on the socket head 220, the supporting column 141 is moved downwards and pushes the clamping column 131, and the clamping column 131 extends out of the through hole 122 and is inserted into the clamping hole 222 to be clamped and fixed.

Further, the diameter of the connection slot 221 matches the diameter of the plunger 120.

Further, the diameter of the clamping hole 222 is matched with the diameter of the clamping post 131.

Working principle: when changing, only need unscrew ejection bolt 230 for ejection bolt 230 no longer pushes down to support post 140, and under reset spring 143's effect, jack post 141 moves up, and clamping post 131 retracts under elastic ring 132's effect and gives way in the chamber 121, releases the joint, conveniently pulls out inserted bar 120 from connecting slot 221 in, need not to hammer and can not cause the damage to wheel frame system 200, conveniently dismantles.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a change of easy dismantlement inserted bar wheel which characterized in that includes:

the wheel inserting system comprises a wheel seat and an inserting rod fixedly connected to the upper end of the wheel seat, and the inserting rod is further provided with a clamping column part and a supporting column part for supporting and pressing the clamping column part;

the wheel carrier system comprises a hack lever and a socket head fixedly connected to the hack lever, and an ejection bolt for ejecting the inserted bar is arranged on the socket head in a threaded manner.

2. The easy-to-detach and replace plunger wheel according to claim 1, wherein the wheel seat comprises a shaft bracket and a reinforcing block fixedly arranged on one side of the shaft bracket, and a pulley is arranged on the shaft bracket.

3. The easy-to-detach and replace inserted link wheel according to claim 2, wherein the inserted link is fixedly connected to the reinforcing block, a yielding cavity is formed in the upper end of the inserted link, through holes for installing clamping column members are formed in two sides of the yielding cavity, and a moving groove is formed in the side wall of the yielding cavity.

4. A readily removable and replaceable plunger wheel as set forth in claim 3 wherein said snap post member comprises a snap post mounted in said through hole with an elastic ring connected thereto, said elastic ring being connected to a sidewall of said relief cavity.

5. The easily removable and replaceable plunger wheel of claim 4, wherein the end of the post extending into the relief cavity is configured as a bevel.

6. The easy-to-detach and replace plunger wheel according to claim 5, wherein the plunger piece comprises a plunger inserted in the abdication cavity and a protruding block fixedly connected to the plunger, the protruding block is clamped and connected in the moving groove, the lower end of the protruding block is fixedly connected with a reset spring, and the other end of the reset spring is fixedly connected in the moving groove.

7. The easily removable and replaceable plunger wheel of claim 6, wherein the diameter of the post is less than the diameter of the relief cavity and the length of the post is less than the depth of the relief cavity.

8. The easy-to-detach and replace plunger rod wheel according to claim 6, wherein the lower end of the socket head is provided with a connecting slot, the inner wall of the connecting slot is provided with a clamping hole, and the lower end of the ejection bolt extends into the connecting slot.

9. The easily removable and replaceable plunger wheel of claim 8, wherein the diameter of the attachment slot matches the diameter of the plunger.

10. The easily removable and replaceable plunger wheel of claim 9, wherein the diameter of the snap-in hole matches the diameter of the snap-in post.