CN217761710U

CN217761710U - Spherical shaft sleeve

Info

Publication number: CN217761710U
Application number: CN202222024119.5U
Authority: CN
Inventors: 王关昌
Original assignee: Shenyang Yongchang Liyang Machine Tool Equipment Co ltd
Current assignee: Shenyang Yongchang Liyang Machine Tool Equipment Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-08
Anticipated expiration: 2032-08-02

Abstract

The utility model provides a spherical shaft sleeve, which comprises a shaft sleeve body, a sealing ring, a mounting ring and an automatic compensation device; the outer wall of the lower end of the shaft sleeve body is provided with a connecting groove which is recessed inwards, and the mounting ring is fixedly connected with the connecting groove through threads; the automatic compensation device comprises a movable ring and a spring, the movable ring is arranged in the mounting ring, the inner wall of the upper end of the movable ring is provided with a first mounting groove, the sealing ring is mounted in the first mounting groove, the outer wall of the lower end of the movable ring is provided with a second mounting groove, the lower end of the mounting ring is provided with an inwards-turned snap ring, the inner wall of the snap ring is connected with the outer wall of the second mounting groove in a sliding manner, and the spring is arranged between the upper wall of the second mounting groove and the upper end face of the snap ring; through setting up the sealing washer, can be sealed with the clearance between collar and the ball axle, prevent that impurity such as dust from entering into the clearance between axle sleeve body and the ball axle in, and through setting up automatic compensation device, can promote the sealing washer and upwards remove, realize automatic compensation.

Description

Spherical shaft sleeve

Technical Field

The utility model relates to an ear-nose-throat operation uses auxiliary stand technical field, specifically is a spherical axle sleeve.

Background

With the development and popularization of microsurgery, the operation microscope and the auxiliary equipment such as the operation bed and the operation chair special for microsurgery have been developed to a certain extent, so that the operator can operate in a comfortable and relaxed state, the fatigue of the operator is reduced, and the fine requirement of the operation and the operation quality are improved.

For example, application No.: 201220317189.3, which comprises a base, a sliding block, a locking bolt, a slide way, a supporting rod, a spherical shaft sleeve, a telescopic rod, a sleeve, a locking screw, a rotating shaft and an arc plate, wherein the slide way is arranged on the base, the sliding block is connected with the base through the slide way, the locking bolt is arranged on the sliding block, the supporting rod is connected with the sliding block, the spherical shaft is connected with the supporting rod, the spherical shaft sleeve is arranged on the spherical shaft sleeve, the locking screw is arranged on the spherical shaft sleeve, the telescopic rod is connected with the spherical shaft sleeve, the sleeve is arranged on the telescopic rod, the locking screw is arranged on the sleeve, and the arc plate is connected with the sleeve through the rotating shaft.

Above-mentioned utility model though have reasonable in design, convenient to use easily adjusts, can adjust the relative position at arc and operation position to the optimum, the operation of being convenient for.

But lack sealing device between spherical axle among the above-mentioned technical scheme and the spherical axle sleeve, impurity such as dust, particulate matter in case get into the clearance between spherical axle and the spherical axle sleeve, cause the dead problem of card easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spherical axle sleeve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a spherical shaft sleeve comprises a shaft sleeve body, a sealing ring, a mounting ring and an automatic compensation device;

the outer wall of the lower end of the shaft sleeve body is provided with a connecting groove which is recessed inwards, and the mounting ring is fixedly connected with the connecting groove through threads;

the automatic compensation device comprises a movable ring and a spring, the movable ring is arranged in the installation ring, the inner wall of the upper end of the movable ring is provided with a first installation groove, the sealing ring is installed in the first installation groove, the outer wall of the lower end of the movable ring is provided with a second installation groove, the lower end of the installation ring is provided with an inwards-turned snap ring, the inner wall of the snap ring is connected with the outer wall of the second installation groove in a sliding mode, and the spring is arranged between the upper end face of the snap ring and the upper wall of the second installation groove.

Preferably, the sealing ring is a DKI lip skeleton iron shell dustproof sealing ring.

Preferably, the spring is any one of a wave spring, a belleville spring, and a flat wire spring.

Preferably, the shaft sleeve further comprises a fastener for fixing the spherical shaft and the shaft sleeve body relatively.

Preferably, the axle sleeve body is equipped with the screw hole, one side that the screw hole stretches into axle sleeve body inner chamber is equipped with the mounting hole, the fastener includes threaded rod and fixed plate, the fixed plate is fixed to be set up the lower extreme of threaded rod, the threaded rod pass through the screw thread with the screw hole is connected, the fixed plate sets up in the mounting hole.

Preferably, the upper end of the threaded rod is provided with a handle.

Preferably, the lower end of the fixing plate is provided with a rubber pad.

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

through setting up the sealing washer, can seal the clearance between collar and the ball axle, prevent that impurity such as dust from entering into the clearance between axle sleeve body and the ball axle in, and through setting up automatic compensation device, can promote the sealing washer and upwards remove, realize automatic compensation.

Drawings

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

FIG. 2 is an enlarged view of area A of the present invention;

fig. 3 is an enlarged view of the area B of the present invention.

In the figure: 1. a shaft sleeve body; 11. connecting grooves; 12. a threaded hole; 13. mounting holes; 2. a seal ring; 3. a mounting ring; 31. a snap ring; 4. an automatic compensation device; 41. a movable ring; 42. a spring; 411. a first mounting groove; 412. a second mounting groove; 5. a fastener; 51. a threaded rod; 52. a fixing plate; 511. a handle; 521. and (7) a rubber pad.

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 spherical shaft sleeve comprises a shaft sleeve body 1, a sealing ring 2, a mounting ring 3 and an automatic compensation device 4;

the outer wall of the lower end of the shaft sleeve body 1 is provided with a connecting groove 11 which is recessed inwards, and the mounting ring 3 is fixedly connected with the connecting groove 11 through threads;

automatic compensation arrangement 4 includes activity ring 41 and spring 42, activity ring 41 sets up in the collar 3, the inner wall of activity ring 41 upper end is equipped with first mounting groove 411, sealing washer 2 is installed in the first mounting groove 411, the outer wall of activity ring 41 lower extreme is equipped with second mounting groove 412, the lower extreme of collar 3 is equipped with the snap ring 31 of inwards turning up, the inner wall of snap ring 31 with the outer wall sliding connection of second mounting groove 412, spring 42 sets up second mounting groove 412 upper wall with between the snap ring 31 up end.

Preferably, the sealing ring 2 is further selected as a DKI lip skeleton iron shell dustproof sealing ring 2, so that the sealing ring 2 can be installed and fixed in the first installation groove 411 through the iron shell skeleton.

Preferably, the spring 42 is selected to be any one of a wave spring 42, a belleville spring 42 and a flat wire spring 42, so that the movable ring 41 can be pushed to move upwards, the automatic compensation of the sealing ring 2 is realized, and the installation stability is better compared with that of a common spring 42.

Preferably, the fastening piece 5 is arranged to relatively fix the spherical shaft and the shaft sleeve body 1; through setting up threaded rod 51 with screw hole 12 threaded connection to can realize reciprocating of threaded rod 51 through rotating threaded rod 51, thereby promote the fixed plate 52 that sets up in mounting hole 13 and move down, make fixed plate 52 and ball attach to each other tightly, thereby fix ball to shaft sleeve body 1.

Preferably, a handle 511 is further disposed at an upper end of the threaded rod 51, so that the handle 511 can conveniently drive the threaded rod 51 to rotate.

Preferably, a rubber pad 521 is provided at the lower end of the fixed plate 52 to prevent the fixed plate 52 from knocking the ball shaft.

All the electrical parts in the present case are connected with the power supply adapted to the electrical parts through a wire, and an appropriate controller should be selected according to actual conditions to meet control requirements, and specific connection and control sequence should be referred to the following working principle, in which the electrical connection is completed between the electrical parts in sequence, and the detailed connection means thereof is a known technology in the art, and the following main description of the working principle and process is omitted for explaining electrical control.

Example one

When in installation; separating the support rod from the base (not shown in the structure diagram, please refer to a reference document), clamping the seal ring 2 into the first mounting groove 411 of the movable ring 41, then placing the spring 42 on the upper end surface of the snap ring 31, then inserting the lower end of the movable ring 41 into the snap ring 31, then sleeving the above components into the support rod from bottom to top, further connecting and fixing the support rod and the base, then sleeving the shaft sleeve body 1 on the upper end of the spherical shaft from top to bottom, and rotating the mounting ring 3 to enable the mounting ring 3 and the connecting groove 11 to be connected and fixed through threads, thereby completing the mounting;

during operation, sealing washer 2 pastes closely each other with the outer wall of spherical axle to can prevent during impurity such as dust from entering into the clearance of spherical axle and axle sleeve body 1, further, spring 42 gives 41 ascending power of activity ring, thereby when sealing washer 2 and spherical axle have the clearance, can promote the rebound of activity ring 41 and sealing washer 2, guarantee sealed effect.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "snap" or "coupling" or "mating" or "welding" or "mounting" or "providing" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. A spherical axle sleeve, its characterized in that: comprises a shaft sleeve body (1), a sealing ring (2), a mounting ring (3) and an automatic compensation device (4);

the outer wall of the lower end of the shaft sleeve body (1) is provided with a connecting groove (11) which is recessed inwards, and the mounting ring (3) is fixedly connected with the connecting groove (11) through threads;

automatic compensation arrangement (4) are including activity ring (41) and spring (42), activity ring (41) set up in installing ring (3), the inner wall of activity ring (41) upper end is equipped with first mounting groove (411), install sealing washer (2) in first mounting groove (411), the outer wall of activity ring (41) lower extreme is equipped with second mounting groove (412), the lower extreme of installing ring (3) is equipped with inwards-turned up snap ring (31), the inner wall of snap ring (31) with the outer wall sliding connection of second mounting groove (412), spring (42) set up second mounting groove (412) upper wall with between snap ring (31) the up end.

2. The spherical bushing according to claim 1, wherein: the sealing ring (2) is a DKI lip skeleton iron shell dustproof sealing ring (2).

3. The spherical bushing according to claim 1, wherein: the spring (42) is any one of a wave spring (42), a butterfly spring (42) and a flat wire spring (42).

4. The spherical bushing according to claim 1, wherein: the shaft sleeve further comprises a fastening piece (5), and the fastening piece (5) is used for fixing the spherical shaft and the shaft sleeve body (1) relatively.

5. The spherical bushing according to claim 4, wherein: axle sleeve body (1) is equipped with screw hole (12), screw hole (12) stretch into one side of axle sleeve body (1) inner chamber is equipped with mounting hole (13), fastener (5) are including threaded rod (51) and fixed plate (52), fixed plate (52) are fixed to be set up the lower extreme of threaded rod (51), threaded rod (51) pass through the screw thread with screw hole (12) are connected, fixed plate (52) set up in mounting hole (13).

6. The spherical bushing according to claim 5, wherein: the upper end of the threaded rod (51) is provided with a handle (511).

7. The spherical bushing according to claim 5, wherein: the lower end of the fixed plate (52) is provided with a rubber pad (521).