CN112372665A

CN112372665A - Joint assembly

Info

Publication number: CN112372665A
Application number: CN202011206280.3A
Authority: CN
Inventors: 王品军; 夏凯; 严航
Original assignee: SUZHOU HAOBRO MEDICAL DEVICE CO Ltd
Current assignee: SUZHOU HAOBRO MEDICAL DEVICE CO Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-02-19

Abstract

The invention discloses a joint assembly, which comprises a fixed support, a rotary support, a fixed connecting part and a floating connecting part, wherein the fixed support is hinged with the fixed support; the joint comprises a torque balancing device and a locking device; the torque balancing device is sleeved on the horizontal rotating shaft; the torque balancing device is respectively and fixedly connected with the fixed support and the rotating support; the torque balancing device is used for providing a torque opposite to the rotating direction of the rotating support; the locking device comprises a fixed friction plate, a rotary friction plate and a pressure device; the rotary friction plate is fixed on the rotary support; the fixed friction plate is arranged on the fixed support; the fixed friction plate and the rotary friction plate are arranged in a mutual contact mode, and the pressure device is used for providing pressure for the fixed friction plate and the rotary friction plate. The torque balancing device is arranged, and the structure such as a spring is utilized to carry out balance design on the torque borne by the joint.

Description

Joint assembly

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a joint assembly.

Background

Medical devices and other fields often use an articulated arm with adjustment and locking, the articulated arm is generally designed with one end fixed and the other end floating, the floating end of the joint is generally provided with treatment or other functional devices, such as phototherapy devices commonly used in medical instruments, and a treatment head is generally arranged at the tail end of the articulated arm; the fumigation treatment device will have a fumigation treatment head disposed at the end of an articulated arm. These devices arranged at the end have a certain weight and need to be adjusted in position when in use, generally by hand; and then fixed in position at a particular location. This requires that the closing arm has the functions of simple adjustment and reliable locking.

Meanwhile, in order to ensure the normal operation of the equipment, the equipment at the tail end of the shutdown arm needs to be connected with the host machine through a wire and a gas circuit; loose wires can reduce the aesthetic appeal of the product and can also cause inconvenience in use. It is necessary that the interior of the articulated arm should have space to accommodate wires and pipes.

The existing joint components generally adopt friction or gear locking, and the structure presses the torque borne by the joint arm on the locking structure of the joint, so that the locking structure is required to have high bearing capacity. However, the joint structure is locked, and the adjustment is difficult, the general operator of the medical equipment is a nurse, the hand strength of the nurse is small, and the joint is not favorable for the adjustment and the use of the medical equipment.

Therefore, there is a need for a joint that can withstand a certain torque, is easy and convenient to adjust, and has a reliable locking device, and a space for accommodating cables and pipes needs to be provided inside the joint.

Disclosure of Invention

The invention provides a joint assembly, which can bear a certain torque, is simple and convenient to adjust and has a firm locking device, and a space for accommodating cables and pipelines needs to be arranged in the joint.

A joint assembly, comprising: a joint; the joint comprises a fixed support, a rotary support, a fixed connecting part and a floating connecting part, wherein the fixed support is hinged with the rotary support, the rotary support is hinged with the horizontal rotary shaft on the fixed support, and the fixed connecting part and the floating connecting part are connected with the rotary support;

the joint comprises a torque balancing device and a locking device;

the torque balancing device is sleeved on the horizontal rotating shaft; the torque balancing device is respectively and fixedly connected with the fixed support and the rotating support; the torque balancing device is used for providing a torque opposite to the rotating direction of the rotating support;

the locking device comprises a fixed friction plate, a rotary friction plate and a pressure device; the rotary friction plate is fixed on the rotary support; the fixed friction plate is arranged on the fixed support; the fixed friction plate and the rotary friction plate are arranged in a mutual contact manner, and the pressure device is used for providing pressure for the fixed friction plate and the rotary friction plate;

further, the joint component is characterized in that: the fixed support comprises a fixed support plate; the fixed support plate is L-shaped and comprises a vertical plate and a connecting plate extending horizontally at the bottom; the bottom of the connecting plate is provided with a fixed connecting part; the fixed connecting part is used for connecting other joints or connecting rods;

furthermore, the rotating support is hinged on the horizontal rotating shaft; the rotary support comprises two parallel round support plates; the middle part of the round support plate is provided with a shaft tube which is hinged with the middle part of the horizontal rotating shaft; the shaft tube and the support plate are fixedly arranged with each other; the outer side edges of the circular support plates are provided with arc support plates, and the arc support plates are fixedly connected with the edges of the two circular support plates; one side of the arc supporting plate is provided with a through hole, and the other side of the arc supporting plate is provided with an open notch; the rotary support is provided with a floating connecting part; the floating connecting part and the arc supporting plate of the rotating support are mutually fixed; a through hole is formed at the joint of the floating connecting part and the arc supporting plate;

furthermore, the horizontal rotating shaft is in a stepped shaft shape, one end of the horizontal rotating shaft is fixedly connected with the fixed support plate, the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and a fixing nut is arranged at the end part of the special-shaped shaft;

furthermore, the fixed friction plate is slidably mounted on the horizontal rotating shaft, and the pressure device is arranged between the fixed nut and the fixed friction plate;

furthermore, the torque balancing device fixing part is arranged on a circular support plate arranged at one side close to the fixed support plate; the torque balancing device fixing part is a fixing hole arranged on the circular support plate;

further, the torque balancing device is a torsion spring and is arranged on the torque balancing device mounting part; one end of the torque balancing device is fixedly connected with the fixed support plate, and the other end of the torque balancing device is fixedly arranged on the fixed part of the torque balancing device on the rotating support; the torque balance device mounting part is a cylindrical wall arranged on the fixed support plate;

furthermore, the horizontal rotating shaft is in a stepped shaft shape, one side of the horizontal rotating shaft is hinged with a hole in a vertical plate of the fixed support plate, the middle part of the horizontal rotating shaft is fixedly arranged with the rotating support, the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and the end part of the special-shaped shaft is provided with a fixing nut;

further, the torque balancing device is a coil spring, and the torque balancing device mounting part is in a cylindrical groove shape arranged on the fixed support plate; the outer side end of the torque balancing device is clamped on the side wall of the torque balancing device mounting part, and the inner side end of the torque balancing device is clamped on the end part of the horizontal rotating shaft;

furthermore, the fixed friction plate is fixed on the side surface of the fixed support plate and is positioned at one side close to the rotating support; the pressure device is arranged between the fixed nut and the rotary support;

furthermore, the adjusting mechanism comprises an adjusting worm wheel and an adjusting worm; the adjusting turbine is hinged on the fixed support plate; the adjusting worm is hinged on the fixed support plate and is meshed with the adjusting turbine; one end of the torque balancing device is fixedly connected with the side surface of the adjusting turbine of the adjusting mechanism, and the other end of the torque balancing device is fixedly installed with the second rotating support or the horizontal rotating shaft;

furthermore, the torque balancing device fixing part comprises a first arc-shaped groove and a second arc-shaped groove which are respectively arranged on the two circular support plates of the rotating support; the first arc-shaped groove extends leftwards to form a semi-arc shape; the second arc-shaped groove extends rightwards to form a semi-arc shape; the lower ends of the first arc-shaped groove and the second arc-shaped groove are arranged right below the circular support plate, the upper ends of the first arc-shaped groove and the second arc-shaped groove are positioned at two sides of the circular support plate, and the whole body and the circular support plate are arranged concentrically; the upper end parts of the first arc-shaped groove and the second arc-shaped groove are positioned at two sides of the central position of the circular support plate;

further, the torque balancing device is a left-hand torsion spring; the torque balancing device is arranged on the torque balancing device mounting part, one end of the torque balancing device is fixedly connected with the fixed support plate, and the other end of the torque balancing device is positioned in the first arc-shaped groove; the device also comprises a second torque balancing device which is a right-handed torsion spring; the second torque balancing device is arranged on the outer side of the locking device; one end of the second torque balance device is fixedly connected with the fixed protective cover, and the other end of the second torque balance device is positioned in the second arc-shaped groove; the fixed shield and the horizontal rotating shaft are fixedly arranged with each other;

further, the second torque balance device provides reverse balance torque when limiting the left-turn swing of the floating connection part; at the moment, the end part of the torque balancing device slides in the first arc-shaped groove without compression and generating torque; the torque balancing device provides reverse balancing torque when the floating connecting part is limited to rotate rightwards and swing; at the moment, the end part of the second torque balancing device slides in the second arc-shaped groove without compression and torque generation;

furthermore, the fixed friction plate and the rotating friction plate are arranged in a mutual contact mode, and the contact surface is a smooth surface.

The present invention provides a joint assembly comprising: a joint; the joint comprises a fixed support, a rotary support, a fixed connecting part and a floating connecting part, wherein the fixed support is hinged with the rotary support, the rotary support is hinged with the horizontal rotary shaft on the fixed support, and the fixed connecting part and the floating connecting part are connected with the rotary support; the joint comprises a torque balancing device and a locking device; the torque balancing device is sleeved on the horizontal rotating shaft; the torque balancing device is respectively and fixedly connected with the fixed support and the rotating support; the torque balancing device is used for providing a torque opposite to the rotating direction of the rotating support; the locking device comprises a fixed friction plate, a rotary friction plate and a pressure device; the rotary friction plate is fixed on the rotary support; the fixed friction plate is arranged on the fixed support; the fixed friction plate and the rotary friction plate are arranged in a mutual contact mode, and the pressure device is used for providing pressure for the fixed friction plate and the rotary friction plate.

The invention has the following characteristics:

1. the device is provided with a torque balancing device, and the torque borne by the joint is balanced and designed by utilizing structures such as springs, the design can be used for pre-estimating the torque according to the use scene of the joint at the later stage, and corresponding spring torque design is carried out according to the pre-estimated result, so that the device is particularly suitable for structures with constant bearing torque or a certain variation range;

2. the torque balancing device can be adjusted according to requirements, and an adjusting mechanism of the torque balancing device can be accurately adjusted according to the change of torque borne by the joint when the joint is used;

3. the locking device is arranged, the locking device and the torque balancing device are matched together to realize locking and free adjustment of the joint, and the locking force of the locking device is eliminated, so that the adjustment is facilitated.

Drawings

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

FIG. 2 is a left side view of a joint assembly of the present invention;

FIG. 3 is a cross-sectional view A-A of a joint assembly of the present invention;

FIG. 4 is a cross-sectional view A-A of a joint assembly of the present invention;

FIG. 5 is an exploded perspective view of a joint assembly of the present invention;

FIG. 6 is a front view of another embodiment of a joint assembly of the present invention;

FIG. 7 is a cross-sectional view B-B of another embodiment of a joint assembly of the present invention;

FIG. 8 is an exploded perspective view of another embodiment of a joint assembly of the present invention;

FIG. 9 is a front view of yet another embodiment of a joint assembly of the present invention;

FIG. 10 is a cross-sectional view of another embodiment C-C of a joint assembly of the present invention;

FIG. 11 is a cross-sectional view of yet another embodiment of a joint assembly of the present invention;

FIG. 12 is a perspective view of a swivel mount of yet another embodiment of a joint assembly of the present invention.

Detailed Description

Example 1:

referring to fig. 1-5, a joint assembly comprising: a joint 12;

the joint 12 comprises a body, and a fixed connecting part 120 and a floating connecting part 1200 which are arranged on the body;

the joint 12 is fixedly connected and installed through the fixed connecting part 12, the floating connecting part 1200 is connected with other joint arms, and the joint arms can rotate around the joint 12;

the joint 12 body comprises a fixed support 121, a rotating support 122, a torque balancing device 123 and a locking device 124;

the fixed support 121 comprises a fixed support plate 1211, a horizontal rotating shaft 1212 and a shield 1213;

the fixed support plate 1211 is L-shaped and comprises a vertical plate 1123 and a connecting plate 1122 extending horizontally at the bottom;

the vertical plate 1123 of the fixed support plate 1211 is in a circular bowl shape;

the bottom of the connecting plate 1122 is provided with a fixed connecting part 120;

the fixed connecting part 120 is vertically arranged, is in a stepped shaft shape, and is hollow inside;

the horizontal rotating shaft 1212 is a stepped shaft, one end of the horizontal rotating shaft is fixedly connected with the fixed support plate 1211, the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and a fixed nut is arranged at the end part of the special-shaped shaft;

a torque balance device installation part 1231 is also arranged in the fixed support plate 1211;

the rotating support 122 is hinged on a horizontal rotating shaft 1212;

the rotating support 122 comprises two parallel circular support plates 1221;

the middle part of the circular support plate 1221 is provided with a shaft tube 1222 which is hinged with the middle part of the horizontal rotating shaft 1212;

the shaft tube 1222 and the support plate 1221 are fixed to each other;

the outer side edge of the circular support plate 1221 is provided with an arc support plate 1223, and the arc support plate 1223 is fixedly connected with the edges of the two circular support plates;

a through hole is formed in one side of the arc supporting plate 1223, and an open notch 1225 is formed in the other side of the arc supporting plate;

the angle of the open notch 1225 is greater than 100 degrees and less than 150 degrees;

the rotating support 122 is provided with a torque balance device fixing part 1228;

the torque balance device fixing part 1228 is arranged on a circular support plate 1221 arranged at one side close to the fixed support plate 1211;

the torque balance device fixing part 1228 is a fixing hole arranged on the circular support plate 1221;

the rotary support 122 is provided with a floating connection part 1200;

the floating connection part 1200 and the arc support plate 1223 of the rotating support 122 are fixed to each other;

the floating connection part 1200 is in a circular tubular shape, and a through hole is formed at the connection part of the floating connection part 1200 and the arc support plate 1223;

the locking device 124 comprises a fixed friction plate 1241, a rotary friction plate 1243 and a pressure device 1242;

the rotating friction plate 1243 is fixed on the rotating support 122 in an annular shape;

the fixed friction plate 1241 is slidably mounted on the horizontal rotating shaft 1212;

the fixed friction plate 1241 is provided with a special-shaped hole inside, and is matched with the special-shaped shaft section in the middle of the horizontal rotating shaft 1212, and the fixed friction plate 1241 cannot rotate around the horizontal rotating shaft 1212;

the fixed friction plate 1241 and the rotary friction plate 1243 are arranged in a mutual contact manner, and the contact surface is a smooth surface;

the pressure device 1242 is arranged between the fixing nut and the fixing friction plate 1241;

the pressure device 1242 is a disc spring;

on the outer side of the pressure device 1242, a shield 1213 is further mounted at the end of the horizontal rotating shaft 1212;

the protective cover 1213 is arranged symmetrically with the fixed support 1211;

the protective cover 1213 and the fixed support plate 1211 are provided with a limit groove 1245 for limiting the swing of the floating connection part 1200;

the limiting groove 1245 is positioned above the shield 1213 and the fixed support 1211 and extends from the middle part to one side;

the limiting groove 1245 is positioned on the side walls of the shield 1213 and the fixed support plate 1211;

the torque balance device 123 is arranged on the torque balance device mounting part 1231;

the torque balance device 123 is a torsion spring, and the torque balance device mounting part 1231 is a cylindrical wall arranged on the fixed support plate 1211;

one end of the torque balance device 123 is fixedly connected with the fixed support plate 1211, and the other end is fixedly mounted with the torque balance device fixing part 1228 on the rotating support 122;

the rotation direction of the torque balancing device 123 is opposite to the extending direction of the limit groove 1245.

When the device is used, in an initial state, the torque balancing device 123 is in an uncompressed state, the fixed connecting part 120 and the floating connecting part 1200 are located at initial positions, and equipment is fixed at the end part of the floating connecting part 1200; when the joint angle is adjusted, the position of the floating connection part 1200 is manually adjusted, the floating connection part 1200 moves in the limiting groove 1245, when the floating connection part 1200 rotates by an angle, the floating connection part 1200 drives the rotating support 122 to rotate around the horizontal rotating shaft 1212, meanwhile, the rotating support 122 drives the torque balancing device 123 fixedly connected with the rotating support 122 to rotate, and since the other end of the torque balancing device 123 is fixedly connected with the fixed support plate 1211, the torque balancing device 123 is rotated and compressed to provide torque for balancing the rotating support 122 and the floating connection part 1200; meanwhile, the fixed friction plate 1241 of the locking device 124 and the rotating friction plate 1243 arranged on the rotating support 122 rotate and rub against each other to provide a locking torque, and the pressure device 1242 provides a positive pressure to the fixed friction plate 1241 during use to ensure the stability of the friction force, so that the friction failure phenomenon caused by friction plate abrasion or loosening of the fixing screw cannot occur.

In the rotation process of the floating connection part 1200, the whole joint bears a torsion moment, the device and the floating connection part 1200 can naturally rotate downwards under the action of gravity, and in this state, the moment required by joint locking is the moment generated by the gravity of the device and the floating connection part 1200. At this time, the torsion spring of the torque balancing device 123 is in a compressed state, and the compressed torsion spring provides a reverse moment to the joint for reducing the gravity of the device and the floating connection 1200 rotating naturally downward, and at this time, the locking moment of the position to be fixed is changed into a moment generated by the gravity minus the reverse moment of the torque balancing device 123, and the locking moment is greatly reduced. Also, a cavity located within the joint may be used to accommodate a line or conduit.

When the device is used, the fixed connecting part 120 of the joint is fixed, and the end part of the floating connecting part 1200 can be provided with equipment which needs to be subjected to position adjustment and positioning, wherein the equipment has certain gravity. During adjustment of the position of the device, the locking means 124 and the torque balancing means 123 on the joint may lock the rotational position of the joint; when the joint rotates, as the floating connection part 1200 of the torque balancing device 123 rotates, the floating connection part 1200 drives the rotating support 122 to rotate, the rotating support 122 drives the torsion spring of the torque balancing device 123 to twist, the torsion spring is stressed in torsion, the reverse elastic force of the torsion spring acts on the rotating support 122, at this time, the reverse torque of the spring is opposite to the torque generated by the equipment installed at the end part of the floating connection part 1200, and the torque balancing device 123 can reduce and balance the torque generated by the equipment; meanwhile, the fixed friction plate 1241 and the rotating friction plate 1243 of the locking device 124 rub against each other to provide a locking force for fixing the position of the rotating bracket 122, and the rotating bracket 122 is locked by the locking device 124.

When the torque balancing device 123 of the present invention is used, different counter balance torques can be provided along with the change of the angle and the position, and the use requirement is met, for example, when the fixed connection part 120 is horizontally fixed and the position of the equipment arranged at the end of the floating connection part 1200 is adjusted, the operation process of the torque balancing device 123 is as follows: firstly, when the floating connection part 1200 is vertically arranged, the joint is subjected to the action of gravity in the vertical direction, and deflection is not generated; after the floating connection part 1200 deflects to one side by a certain angle, the joint is subjected to a deflection torque, at this time, the torsion spring of the torque balancing device 123 is also subjected to a torsion action, the torsion spring provides a reverse torsion force, the torsion force acts on the joint, and at this time, the torque balancing device 123 provides a reverse moment opposite to the deflection direction of the floating connection part 1200; the sum of the moment of deflection of the floating connection 1200 is reduced and the torque that the locking device overcomes when performing the joint lock is reduced, so that the locking device only needs a small friction force to lock the position of the floating connection 1200. Since the rotation of the rotary support 122 varies with the angle of rotation, the torque reaction of the torsion spring also varies with the angle.

Example 2:

referring to fig. 6-8, a joint assembly comprising: a joint 12;

the horizontal rotating shaft 1212 is in a stepped shaft shape, one side of the horizontal rotating shaft is hinged with a hole on the vertical plate 1123, the middle part of the horizontal rotating shaft is fixedly arranged with the rotating support 122, the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and the end part of the special-shaped shaft is provided with a fixing nut;

a torque balance device installation part 1231 is arranged at the outer side of the fixed support plate 1211;

the rotating support 122 is fixedly installed on the horizontal rotating shaft 1212;

the rotating support 122 comprises two parallel circular support plates 1221;

the shaft tube 1222 and the support plate 1221 are fixed to each other;

the rotary support 122 is provided with a floating connection part 1200;

the fixed friction plate 1241 is fixed on the side of the fixed support plate 1211, which is located near the rotating support 122;

the pressure device 1242 is arranged between the fixing nut and the rotary support 122; for pressing the rotary bracket 122 so that the rotary friction plate 1243 on the rotary bracket 122 and the fixed friction plate 1241 on the side of the fixed bracket plate 1211 rub against each other;

the pressure device 1242 is a disc spring;

the shield 1213 is arranged outside the locking means 124;

the torque balance device 123 is a coil spring, and the torque balance device mounting part 1231 is a cylindrical groove arranged on the fixed support plate 1211;

the outer end of the torque balance device 123 is fastened to the sidewall of the torque balance device mounting portion 1231, and the inner end is fastened to the end of the horizontal rotating shaft 1212.

When the device is used, in an initial state, the torque balancing device 123 is in an uncompressed state, the fixed connecting part 120 and the floating connecting part 1200 are located at initial positions, and equipment is fixed at the end part of the floating connecting part 1200; when the joint angle is adjusted, the position of the floating connection part 1200 is manually adjusted, the floating connection part 1200 moves in the limiting groove 1245, when the floating connection part 1200 rotates by an angle, the floating connection part 1200 drives the rotating support 122 to rotate around the horizontal rotating shaft 1212, meanwhile, the rotating support 122 drives the torque balancing device 123 fixedly connected with the rotating support 122 to rotate, and since the other end of the torque balancing device 123 is fixedly connected with the fixed support plate 1211, the torque balancing device 123 is rotated and compressed to provide torque for balancing the rotating support 122 and the floating connection part 1200; meanwhile, the fixed friction plate 1241 of the locking device 124 and the rotating friction plate 1243 arranged on the rotating support 122 rub against each other in a rotating manner to provide a locking torque, and the pressure device 1242 provides a positive pressure to the fixed friction plate 1241 during use, so as to ensure the stability of the friction force, and the friction failure phenomenon caused by friction plate abrasion or loosening of the fixing screw cannot occur.

When the device is used, the fixed connecting part 120 of the joint is fixed, and the end part of the floating connecting part 1200 can be provided with equipment which needs to be subjected to position adjustment and positioning, wherein the equipment has certain gravity. During adjustment of the position of the device, the locking means 124 and the torque balancing means 123 on the joint may lock the rotational position of the joint; when the joint rotates, as the floating connection part 1200 of the torque balancing device 123 rotates, the floating connection part 1200 drives the rotation support 122 to rotate, the rotation support 122 drives the coil spring of the torque balancing device 123 to twist, the coil spring is twisted and stressed, the reverse elastic force of the coil spring acts on the rotation support 122, at this time, the reverse torque of the spring is opposite to the torque generated by the equipment arranged at the end part of the floating connection part 1200, and the torque balancing device 123 can reduce and balance the torque generated by the equipment; meanwhile, the fixed friction plate 1241 and the rotating friction plate 1243 of the locking device 124 rub against each other to provide a locking force for fixing the position of the rotating bracket 122, and the rotating bracket 122 is locked by the locking device 124.

When the torque balancing device 123 of the present invention is used, different counter balancing torques can be provided along with the change of the home supervision and the position, and the use requirement is met, for example, when the fixed connection part 120 is horizontally fixed and the position of the equipment arranged at the end of the floating connection part 1200 is adjusted, the working process of the torque balancing device 123 is as follows: firstly, when the floating connection part 1200 is vertically arranged, the joint is subjected to the action of gravity in the vertical direction, and deflection is not generated; after the floating connection part 1200 deflects to one side by a certain angle, the joint is subjected to a deflection torque, at the moment, a coil spring of the torque balancing device 123 is also subjected to a torsion action, the torsion spring provides a reverse torsion force, the torsion force acts on the joint, and at the moment, the torque balancing device 123 provides a reverse moment opposite to the deflection direction of the floating connection part 1200; at this time, the sum of the yawing moments of the floating coupling 1200 is reduced, and the torque applied to the locking device is reduced when the knuckle is locked, so that the locking device requires only a small frictional force to lock the position of the floating coupling 1200.

Example 3:

referring to fig. 9-10, a joint assembly comprising: a joint 12;

a cavity is arranged in the fixed support plate 1211 and around the horizontal rotating shaft 1212;

the rotating support 122 is hinged on a horizontal rotating shaft 1212;

the rotating support 122 comprises two parallel circular support plates 1221;

the shaft tube 1222 and the support plate 1221 are fixed to each other;

the rotary support 122 is provided with a floating connection part 1200;

the pressure device 1242 is a disc spring;

the torque balancing device 123 is arranged on the horizontal rotating shaft 1212;

the adjusting mechanism 128 comprises an adjusting turbine 1281 and an adjusting worm 1282;

the adjusting turbine 1281 is arranged in a cavity around the horizontal rotating shaft 1212 of the fixed support plate 1211 and is hinged on the horizontal rotating shaft 1212;

the adjusting worm 1282 is hinged on the fixed support plate 1211 and is meshed with the adjusting turbine 1281;

an adjusting hole 1283 is formed in the end part of one end of the adjusting worm 1282;

a linear, inner hexagonal or outer hexagonal structure is arranged in the adjusting hole 1283 and is used for manually rotating the adjusting worm 1282;

the torque balancing device 123 is a torsion spring;

one end of the torque balancing device 123 is fixedly connected with the side surface of the adjusting turbine 1281 of the adjusting mechanism 128, and the other end is fixedly mounted with the torque balancing device fixing part 1228 on the second rotating support 122;

During the use, because the equipment of joint tip can carry out different configurations as required, the equipment of configuration is different, its weight is inequality with the moment of torsion that produces, just so need moment of torsion balancing unit 123 to adjust according to the condition, during the regulation, rotatory adjustment turbine 1281 of rotatory adjustment mechanism 128, it is rotatory that adjustment turbine 1281 drives adjustment worm 1282, it is rotatory to adjust turbine 1281, can adjust moment of torsion balancing unit 123's initial torsion, after the torsion increases, can increase the balanced moment of torsion balancing unit 123, can accomplish the moment of torsion balance of the equipment of bigger quality.

Example 4:

referring to fig. 11-12, a joint assembly comprising: a joint 12;

the joint 12 body comprises a fixed support 121, a rotating support 122, a torque balancing device 123, a second torque balancing device 129 and a locking device 124;

the rotating support 122 is hinged on a horizontal rotating shaft 1212;

the rotating support 122 comprises two parallel circular support plates 1221;

the shaft tube 1222 and the support plate 1221 are fixed to each other;

the torque balance device fixing part 1228 comprises a first arc-shaped groove 12281 and a second arc-shaped groove 12282;

the first arc-shaped groove 12281 and the second arc-shaped groove 12282 are respectively arranged on the two circular support plates 1221;

the first arc-shaped groove 12281 extends leftwards to form a semi-arc shape;

the second arc-shaped slot 12282 extends rightwards to form a semi-arc shape;

the first arc-shaped groove 12281 is arranged on the circular support plate 1221 on one side, the lower end of the first arc-shaped groove 12281 is arranged right below the circular support plate 1221, the upper end is positioned on one side of the circular support plate 1221, and the whole body is arranged concentrically with the circular support plate 1221;

the second arc-shaped groove 12282 is arranged on the circular support plate 1221 on one side, the lower end of the first arc-shaped groove 12281 is arranged right below the circular support plate 1221, the upper end is positioned on the other side of the circular support plate 1221, and the whole body is arranged concentrically with the circular support plate 1221;

the upper end parts of the first arc-shaped groove 12281 and the second arc-shaped groove 12282 are positioned at two sides of the central position of the circular support plate 1221;

the rotary support 122 is provided with a floating connection part 1200;

the pressure device 1242 is a disc spring;

the shield 1213 and the horizontal rotating shaft 1212 are fixedly arranged with each other;

the torque balancing device 123 is a left-hand torsion spring;

the torque balance device 123 is arranged on a torque balance device mounting part 1231 which is a cylindrical wall arranged on the fixed support plate 1211;

one end of the torque balancing device 123 is fixedly connected with the fixed support plate 1211, and the other end is located inside the first arc-shaped groove 12281;

the second torque balance device 129 is a right-handed torsion spring;

the second torque balance device 129 is arranged outside the locking device 124;

the second torque balance device 129 has one end fixedly connected to the shield 1213 and the other end fixedly connected to the second arc-shaped slot 12282

An inner portion;

the second torque balance device 129 provides reverse balance torque when the floating connection part 1200 is limited to swing left; at this time, the end of the torque balancing device 123 slides in the first arc-shaped groove 12281 without compressing and generating torque;

the torque balancing device 123 provides reverse balancing torque when limiting the right-turn swing of the floating connection part 1200; at this point the end of the second torque balance 129 slides within the second arcuate slot 12282 without compressing and producing torque.

When the joint is used, the torque balancing device 123 and the second torque balancing device 129 respectively provide two reverse torques in different directions, the reverse torques can be designed differently according to different requirements, and the reverse torques in the two directions can meet the requirement that the joint is used under the condition that the joint only needs to rotate in the two directions.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint assembly, comprising: a joint (12); the joint (12) comprises a fixed support (121) hinged with each other, a rotating support (122) hinged on a horizontal rotating shaft (1212) on the fixed support (121), and a fixed connecting part (120) and a floating connecting part (1200) which are connected with each other; the method is characterized in that:

the joint (12) comprises a torque balancing device (123) and a locking device (124);

the torque balancing device (123) is sleeved on the horizontal rotating shaft (1212); the torque balancing device (123) is respectively and fixedly connected with the fixed support (121) and the rotating support (122); the torque balancing device (123) is used for providing a torque opposite to the rotating direction of the rotating support (122);

the locking device (124) comprises a fixed friction plate (1241), a rotary friction plate (1243) and a pressure device (1242); the rotary friction plate (1243) is fixed on the rotary support (122); the fixed friction plate (1241) is arranged on the fixed support (121); the fixed friction plate (1241) and the rotary friction plate (1243) are arranged in a mutual contact manner, and the pressure device (1242) is used for providing pressure for the fixed friction plate (1241) and the rotary friction plate (1243).

2. A joint assembly according to claim 1, wherein: the fixed support (121) comprises a fixed support plate (1211); the fixed support plate (1211) is L-shaped and comprises a vertical plate (1123) and a connecting plate (1122) which extends horizontally at the bottom; the bottom of the connecting plate (1122) is provided with a fixed connecting part (120); the fixed connecting part (120) is used for connecting other joints or connecting rods.

3. A joint assembly according to claim 2, wherein: the rotating support (122) is hinged on a horizontal rotating shaft (1212); the rotary support (122) comprises two parallel circular support plates (1221); the middle part of the circular support plate (1221) is provided with an axle tube (1222) which is hinged with the middle part of the horizontal rotating shaft (1212); the shaft tube (1222) and the support plate (1221) are fixedly arranged with each other; the outer side edge of each circular support plate (1221) is provided with an arc support plate (1223), and the arc support plates (1223) are fixedly connected with the edges of the two circular support plates; a through hole is formed in one side of the arc supporting plate (1223), and an open notch (1225) is formed in the other side of the arc supporting plate; the rotary support (122) is provided with a floating connecting part (1200); the floating connecting part (1200) and the arc supporting plate (1223) of the rotating support (122) are mutually fixed; the joint of the floating connecting part (1200) and the arc supporting plate (1223) is provided with a through hole.

4. A joint assembly according to claim 3, wherein: the horizontal rotating shaft (1212) is in a stepped shaft shape, one end of the horizontal rotating shaft is fixedly connected with the fixed support plate (1211) mutually, the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and the end part of the special-shaped shaft is provided with a fixing nut.

5. A joint assembly according to claim 4, wherein: the fixed friction plate (1241) is slidably mounted on the horizontal rotating shaft (1212), and the pressure device (1242) is arranged between the fixed nut and the fixed friction plate (1241).

6. A joint assembly according to claim 5, wherein: the torque balance device fixing part (1228) is arranged on a circular support plate (1221) arranged at one side close to the fixed support plate (1211); the torque balance device fixing part (1228) is a fixing hole arranged on the circular support plate (1221).

7. A joint assembly according to claim 6, wherein: the torque balancing device (123) is a torsion spring and is arranged on the torque balancing device mounting part (1231); one end of the torque balancing device is fixedly connected with the fixed support plate (1211) and the other end of the torque balancing device is fixedly arranged on the torque balancing device fixing part (1228) on the rotating support (122); the torque balancer mounting portion is a cylindrical wall provided on the fixed support plate 1211.

8. A joint assembly according to claim 3, wherein: the horizontal rotating shaft (1212) is in a stepped shaft shape, one side of the horizontal rotating shaft is hinged with a hole in a vertical plate (1123) of the fixed support plate (1211), the middle of the horizontal rotating shaft is fixedly arranged with the rotating support (122), the other end of the horizontal rotating shaft is provided with a special-shaped shaft section, and the end part of the special-shaped shaft is provided with a fixing nut.

9. A joint assembly according to claim 8, wherein: the torque balance device (123) is a coil spring, and the torque balance device mounting part (1231) is in a cylindrical groove shape arranged on the fixed support plate (1211); the outer side end of the torque balance device (123) is connected to the side wall of the torque balance device mounting portion (1231) in a clamped mode, and the inner side end of the torque balance device is connected to the end portion of the horizontal rotating shaft (1212) in a clamped mode.

10. A joint assembly according to claim 9, wherein: the fixed friction plate (1241) is fixed on the side surface of the fixed support plate (1211) and is positioned at one side close to the rotating support (122); the pressure device (1242) is arranged between the fixed nut and the rotary support (122).

11. A joint assembly according to claim 7 or 10, wherein: the adjusting mechanism (128) comprises an adjusting turbine (1281) and an adjusting worm (1282); the adjusting turbine (1281) is hinged on the fixed support plate (1211); the adjusting worm (1282) is hinged on the fixed support plate (1211) and is meshed with the adjusting turbine (1281); one end of the torque balancing device (123) is fixedly connected with the side surface of the adjusting turbine (1281) of the adjusting mechanism (128), and the other end of the torque balancing device is fixedly arranged with the second rotating support (122) or the horizontal rotating shaft (1212).

12. A joint assembly according to claim 5, wherein: the torque balancing device fixing part (1228) comprises a first arc-shaped groove (12281) and a second arc-shaped groove (12282) which are respectively arranged on two circular support plates (1221) of the rotating support (122); the first arc-shaped groove (12281) extends leftwards to form a semi-arc shape; the second arc-shaped groove (12282) extends rightwards to form a semi-arc shape; the lower ends of the first arc-shaped groove (12281) and the second arc-shaped groove (12282) are arranged right below the circular support plate (1221), the upper ends of the first arc-shaped groove and the second arc-shaped groove are positioned at two sides of the circular support plate (1221), and the first arc-shaped groove and the second arc-shaped groove are integrally arranged concentrically with the circular support plate (1221); the upper end parts of the first arc-shaped groove (12281) and the second arc-shaped groove (12282) are positioned at two sides of the center of the circular support plate (1221).

13. A joint assembly according to claim 12, wherein: the torque balancing device (123) is a left-hand torsion spring; the torque balancing device (123) is arranged on the torque balancing device mounting part (1231), one end of the torque balancing device is fixedly connected with the fixed support plate (1211), and the other end of the torque balancing device is positioned in the first arc-shaped groove (12281); the device also comprises a second torque balancing device (129), wherein the second torque balancing device (129) is a right-hand torsion spring; the second torque balance device (129) is arranged outside the locking device (124); one end of the second torque balancing device (129) is fixedly connected with the shield (1213), and the other end of the second torque balancing device is positioned in the second arc-shaped groove (12282); the shield (1213) and the horizontal rotating shaft (1212) are mutually fixed.

14. A joint assembly according to claim 13, wherein: the second torque balance device (129) provides reverse balance torque when the floating connection part (1200) is limited to swing left; at the moment, the end part of the torque balancing device (123) slides in the first arc-shaped groove (12281), and is not compressed and generates no torque; the torque balancing device (123) provides reverse balancing torque when the floating connection part (1200) is limited to swing rightwards; at this time, the end of the second torque balance device (129) slides in the second arc-shaped groove (12282), and is not compressed and generates no torque.

15. A joint assembly according to claim 1, wherein: the fixed friction plate (1241) and the rotary friction plate (1243) are arranged in a mutual contact mode, and the contact surface is a smooth surface.