65results about How to "Elastic adjustment" patented technology

The invention provides a touch key structure and a household electrical appliance using the touch key structure. The key structure comprises an operating panel, a printed circuit board, and a capacitance-sensing device which is arranged between the operating panel and the printed circuit board and is welded to the printed circuit board. The capacitance-sensing device comprises an induction part. The induction part touches the operating panel through surfaces, so that the induction part touches the operating panel more tightly, and the capacity of the capacitance-sensing device is increased, thereby the capacitance-sensing device is induced more sensitively to the touch of a user.

The invention relates to a preparation method of an unsaturated polyester resin low shrinking agent and belongs to the field of macromolecule polymerization. The preparation method comprises the following steps: (1) preparation of seed latex particles, to be specific, uniformly mixing liquid rubber or elastomers, nanoinorganic particles and coupling agents, dropwise adding or adding into an aqueous solution containing certain emulsifying agents by adopting a one-time method at a low speed, wherein the mass ratio of water to a mixture is 1: (10-100); carrying out high-strength stirring for 30 minutes at a certain temperature for standby; (2) preparation of latex particles with core-shell forms, to be specific, dropwise adding a vinyl monomer or a mixed monomer of one or more of monomers into seed emulsion dispersed in the step (1) by adopting a certain method, adding an initiator, polymerizing at a temperature of 70 DEG C, reacting for 4 hours and cooling to a room temperature after the completion of preparation. The low shrinking agent has the benefits that the shrinkage rate of cured unsaturated polyester resin is lower, the coloring problem of the unsaturated polyester resin can be obviously improved, and the usage amount of the low shrinking agent is obviously reduced.

The invention mainly discloses an air cushion-partitioned mattress, which comprises a steel wire spring layer and an air cushion, wherein the air cushion is laid outside the spring wire spring layer and is divided into a plurality of air cushion units along the length direction of the mattress. In the air cushion-partitioned mattress, the design of the mattress is simplified, the mattress can be divided into different areas aiming at different parts of human bodies, each area can be adjusted independently, and air pressure is regulated by air content to adjust the hardness of the mattress, so that the optimum comfort degree is achieved. The air cushion-partitioned mattress saves cost and is convenient to produce, operate and maintain.

The invention discloses a mattress. The mattress comprises a bedding core formed by arranging a plurality of springs and an outer cover covered out of the bedding core, wherein the positions, on the mattress, facing each spring are provided with longitudinal adjusting holes; and elastic adjusting devices are arranged in the adjusting holes, wherein each elastic adjusting device comprises a piston push rod, an upper base plate, a sleeve, a screw rod, an adjusting spring, a moving block, a lower base plate and a drive mechanism. The mattress forms an inside-and-outside elastic structure so that a user can adjust the elasticity of the mattress everywhere according to own needs, which realizes the adjustment of the flexibility at any position of the mattress and realizes the flexibility adjustment of the mattress by electric adjustment or manual adjustment; and therefore, the mattress has more selectivities, simple operation and easy implementation.

The invention provides rotary preserved szechuan pickle filling equipment, and belongs to the technical field of preserved szechuan pickle processing. The rotary preserved szechuan pickle filling equipment comprises a carrying and dumping mechanism device, a stirring and seasoning device, an automatic feed divider and a rotary filling device. The stirring and seasoning device is arranged on one side of the carrying and dumping mechanism device, and the automatic feed divider is arranged below a stirrer. The rotary filling device is arranged on the left side of the automatic feed divider, and the rotary filling device comprises a filling rotary disc mechanism, a bag supply mechanism and a bag taking mechanism. The filling rotary disc mechanism comprises a rotary disc conveying assembly, a rotary disc driving assembly and a bag receiving driving assembly. The bag receiving driving assembly is arranged on the left side of the filling rotary disc, and the bag supply mechanism is arranged on the left side of the filling rotary disc mechanism. The bag taking mechanism is arranged between the bag supply mechanism and the filling rotary disc mechanism, and a bag opening mechanism is arranged on the front side of the filling rotary disc. The rotary preserved szechuan pickle filling equipment achieves continuous rotary filling of preserved szechuan pickle, and is high in filling automation degree.

The invention relates to the technical field of gymnasium equipment and tools, in particular to a teaching yoga mat for a gymnasium and a use method of the teaching yoga mat. The teaching yoga mat comprises a contact layer, a sweat collecting layer, a bonding layer, a sensing layer, an elasticity adjusting layer, a supporting layer, a connecting tube and an electric assembly interacting with a user, wherein the contact layer, the sweat collecting layer, the bonding layer, the sensing layer, the elasticity adjusting layer and the supporting layer are sequentially stacked from top to bottom; multiple massage balls are arranged on the surface of the contact layer; a cavity is formed in each massage ball; multiple elastic tubes penetrate in the contact layer, one end of each elastic tube is communicated with the corresponding massage ball, and the other end of the elastic tube extends into the sweat collecting layer; the sweat collecting layer is used for collecting sweat; the bonding layer is arranged between the sweat collecting layer and the sensing layer; one end of the connecting tube extends into the sensing layer, and the other end of the connecting tube extends into the supporting layer; elasticity of the elasticity adjusting layer is adjustable; sole massage areas are arranged on the surface of the contact layer, and the massage balls located in the sole massage areas are arranged according to the distribution condition of sole acupuncture points of a human body.

The invention provides a tuber mustard packaging bag picking device and belongs to the technical field of tuber mustard processing equipment. The tuber mustard packaging bag picking device comprises abag supply mechanism, a bag picking mechanism and a filling turning plate mechanism; feeding sucking discs of the bag supply mechanism are installed at an equal interval on a sucking disc supportingplate; the lower end of a bag picking rod of the bag picking mechanism is hinged with the upper end of a bag picking rocker bar; a first bag picking finger and a second bag picking finger are installed at the lower end of the bag picking rod; the filling turning plate mechanism comprises a turning plate conveying component, a turning plate driving component and a bag receiving driving component; filling clamping components of the turning plate conveying component are arranged at an equal internal at the outer side of a filling turning plate in a surrounding manner; a turning plate grabbing sleeve of the turning plate driving component is installed at the other end of the turning plate driving plate; turning plate driving blocks are uniformly distributed and installed on the filling turningplate at an equal interval; and the two ends of a jacking rod synchronous rod of the bag receiving driving component are correspondingly hinged to the other end of a first bag receiving jacking plateand the other end of a second bag receiving jacking plate. The tuber mustard packaging bag picking device provided by the invention quickly realizes one-by-one picking of tuber mustard packaging bags, sends the tuber mustard packaging bags to the filling turning plate one by one, and is reasonable in structure.

The invention discloses a vehicle auxiliary drive mechanism which comprises an engine, a transmission, a first clutch, a vehicle speed sensor and a controller. The first clutch is connected between the engine and the transmission. An output end of the transmission is connected with a differential mechanism through a reduction gear set. A position sensor is disposed on the first clutch. The output end of the transmission is connected with an input shaft of an accumulation transmission system through a second clutch which is connected with a brake pedal. An output shaft of the accumulation transmission system is provided with an accumulation coil spring and a locking device. The output shaft of the accumulation transmission system is connected with the differential mechanism through an auxiliary drive transmission system which can transmit power unidirectionally. The vehicle speed sensor and the position sensor are connected with an input end of the controller. An output end of the controller is connected with the locking device. By the vehicle auxiliary drive mechanism, brake energy during traveling of fuel vehicles can be fully absorbed, stored and used for driving vehicle starting, starting performance of the vehicles can be improved favorably, and oil consumption and emission can be lowered evidently.

The invention provides a lock nut with a nut body which has a threaded section with an internal thread and an adjoining inner annular groove. An annular lock washer made of metal is held in the annular groove. An internal thread corresponding to the nut thread is cut into the inner circumference of the annular washer, and the internal thread of the annular washer is offset axially in relation to the nut thread by a distance which is smaller than a thread pitch of the nut thread. According to the invention, the thickness of the annular washer at the inside diameter thereof is greater than the thickness of the annular washer at the outside diameter thereof. As a result, the elasticity of the annular lock washer and the holding force of the lock nut can be adjusted.

The invention discloses an external heat dissipation device of a computer chassis with high applicability. The device includes a box body, the inside of the box body is provided with a placing cavityand a cooling cavity, the four corners of the lower end of the box body are provided with struts, the lower end of the strut is provided with a universal wheel, a plurality of buffer devices are symmetrically arranged on the left and right sides of the placing cavity, the inner end of the cushioning device is provided with a squeezing plate, the lower end of the interior of the placing chamber isalso provided with a cushioning device, the upper end of the cushioning device is also provided with an extrusion plate, the cushioning device comprises a connecting seat symmetrically mounted on theinner side of the placement chamber, the inner side of the connecting seat is rotatably connected with a threaded rod, the two threaded rods are threaded with a support plate, the outer end of the threaded rod is provided with an adjusting wheel, the outer side of the support plate is provided with a telescopic rod, the outer end of the telescopic rod is connected with the extrusion plate, the outer side of the telescopic rod is provided with a spring, one end of the spring is connected with the extrusion bar, and the other end of the spring is connected with the support plate. The invention has the advantages of simple structure, convenient use, good protective effect, long service life and wide application range.

The invention relates to the technical field of teaching and gym equipment and discloses a teaching yoga mat for an improved gym and physical education and an application method thereof. The teaching yoga mat comprises a contact layer, a sweat collection layer, a bonding layer, a sensing layer, an elasticity adjusting layer, a support layer, a connection pipe and an electric component for interaction with the user, wherein the contact layer, the sweat collection layer, the bonding layer, the sensing layer, the elasticity adjusting layer and the support layer are sequentially overlapped from top to bottom; multiple massage spheres are arranged on the surface of the contact layer; a cavity is formed in the massage sphere; multiple elastic pipes penetrate in the contact layer; one end of the elastic pipe is communicated with the massage sphere, and the other end extends into the sweat collection layer; the sweat collection layer is used for collecting sweat; the bonding layer is arranged between the sweat collection layer and the sensing layer; one end of the connection pipe extends into the sensing layer, and the other end extends into the support layer; the elasticity of the elasticity adjusting layer is adjustable; and a foot massage area is arranged on the surface of the contact layer; and the massage spheres in the foot massage area are arranged according to the acupuncture point distribution.

The invention relates to a child safety seat. The child safety seat comprises a seat body and a safety belt, wherein the seat body comprises a backrest and a seat cushion, the backrest and the seat cushion are filled with pearl wool and respectively provided with an elastic buffer element, a compression device is arranged at the outer side of the backrest and the seat cushion and used for controlling the elasticity of the elastic buffer element, arc protection side wings are respectively arranged at the upper two sides of the backrest, movable handrails are respectively arranged at the lower two sides of the backrest, the backrest comprises a head pillow, the head pillow is installed above the backrest in a sliding manner, the head pillow is controlled and locked at a preselected height by virtue of a lock catch device, the safety belt comprises a main belt and an auxiliary belt which are respectively arranged at the left side and the right side of the backrest, and two sides of the seat cushion are provided with a groove buckle corresponding to the safety belt.

The invention discloses a boxing stand installed on a frame structure, belongs to the field of sports fitness equipment, and particularly relates to a device for exercising boxing conveniently. The boxing stand comprises an installation device, an elastic device and a beating device, the installation device comprises two or more stay rods, and the stay rods are connected with and fix the beating device through the elastic device. The boxing stand can be installed in a building structure with a window frame or a door frame conveniently, and a boxing fan can conduct boxing training at any place any time. The boxing stand can be graded according to coloration of a preset intensity color device, when beating reaches to different grades, different kinds of color display are shown on the surface of the beating device, and a trainee can understand the existing punching intensity clearly by observing a visual signal. The boxing stand can be adjusted in a humanized mode according to self conditions, the punching intensity and exercise habits, the boxing sport is more scientific and controllable, and generation of pain is further avoided.

The invention relates to a fixable nonwoven interlining material used in the textile industry comprising at least one melt-spun fibre layer and at least one other fibre layer, wherein said fixable interlining material is provided with an adhesive substance at least in partial areas thereof. The aim of said invention is to develop a highly-elastic fixable interlining material. For this purpose, the melt-spun fibres are made of an elastic fibrous material, at least one layer of the fibrous material consists of discontinuous fibres, at least one melt-spun fibre layer and at least one discontinuous fibre layer are placed on each other in such a way that a flat unconsolidated fibre aggregate is formed and are subsequently consolidated by a known bonding process.

The invention relates to a spring self-limit filler cap, comprising a filler cap outer board, a filler cap inner board, a rotating shaft, a spring, a rotating leaf plate, a spring limit block and a spring touch board; the spring limit block is fixedly connected with the filler cap inner board, and the rotating end of the spring is pressed on the spring limit block before the filler cap is opened with a certain angle or after the filler cap is closed with a certain angle; the spring touch board is fixedly connected with the rotating leaf plate, and the rotating end of the spring is pressed on the spring touch board before the filler cap is opened with a certain angle or after the filler cap is closed with a certain angle; by adopting the spring self-limit filler cap in the technical proposal, as the rotating end of the spring is pressed on the spring limit block before the filler cap is opened with a certain angle or after the filler cap is closed with a certain angle, the spring force can not act on the rotating leaf plate all the time, in particular to the later period that the filler cap is opened, the spring force can not act on the rotating leaf plate, and back force of the spring can not be generated.

The invention discloses a warehouse-in and warehouse-out scanning platform. The scanning platform comprises a scanning platform body, a U-shaped fixing seat is arranged below the scanning platform main body; the bottom of the scanning platform main body is fixedly connected with a rectangular box seat of which the bottom is provided with an opening; a rectangular pipe is arranged in the rectangular box base in a sliding and sleeved mode, the bottom end of the rectangular pipe extends to the position below the rectangular box base and is fixedly connected with the top of the U-shaped fixing seat, four positioning shafts are fixedly connected to the inner wall of the top of the rectangular box seat, and the four positioning shafts are sleeved with the same pressure adjusting plate in a sliding mode. The scanning platform is reasonable in design and convenient to use, facilitates adjustment of the height of the scanning platform body according to actual requirements, facilitates bufferingof the scanning platform body, facilitates adjustment of elastic force of the springs according to actual requirements, achieves balance of vibration force and bounce amplitude, reduces the bounce amplitude while effectively relieving vibration impact force, meets use requirements and is beneficial to use.

The invention relates to an adjustable and elastic mattress. The adjustable and elastic mattress comprises a mattress body. The adjustable and elastic mattress is characterized in that the mattress body is wrapped by a wrapping layer; a mattress core is arranged inside the wrapping layer and is of a layered structure; a memory spongy layer and an elastic interlayer are sequentially arranged from top to bottom; the elastic interlayer is a spring layer; springs are arranged on a metal framework; the multiple rows of springs are evenly arranged on the metal framework of the spring layer; inflatable bags are arranged between every two rows of springs; air openings are formed in the inflatable bags; the air openings of the multiple inflatable bags are gathered to be connected to air in-out opening in the wrapping layer of the mattress body; and the heights of the inflatable bags after the inflatable bags are filled with air are larger than the heights of the springs.

The invention relates to a tension exercising device, and in particular relates to a convenient adjustable tension exercising device. The technical problem is to provide a tension exercising device which can be conveniently adjusted and can improve the exercise efficiency. The technical scheme is that the device includes an outer shell, an installation plate, a plurality of first pulleys, a second pulley, a first pull rope, a pull plate, a pull handle device, a limit block, first tension springs and fixing plates; and the right part of the outer shell is provided with the installation plate, the left part of the front side face of the installation plate is rotatably connected to the plurality of first pulleys capable of guiding the first pull rope, and the left part of the back side face in the outer shell is connected to the second pulley in a rotary mode. By constantly pulling a pull handle device to the left, users can do tension exercise, and by moving a slide plate right and left to a suitable position, the users can adjust the elastic force of the first tension springs so as to adjust the difficulty of the tension exercise, and efficiency of the tension exercise can be improved.

The invention discloses a double-waistline paper diaper. The double-waistline paper diaper comprises a paper diaper body, wherein second elastic strips are fixedly connected to the upper end and the lower end of the paper diaper body respectively; the paper diaper body comprises a cotton lining, a first breathable composite non-woven fabric layer and a second breathable composite non-woven fabriclayer; the first breathable composite non-woven fabric layer is arranged on one side of the cotton lining; the second breathable composite non-woven fabric layer is arranged on the other side of the cotton lining; and the cotton lining, the first breathable composite non-woven fabric layer and the second breathable composite non-woven fabric layer are pressed by hot air to form the paper diaper body. According to the double-waistline paper diaper, the waistline of the whole mechanism can be adjusted according to the actual situation of a user, and the first elastic strips can be adjusted underthe action of an adjusting mechanism so as to change the tightness degree, so that the practicability of the whole mechanism is greatly improved, the double-waistline paper diaper is suitable for different users, the use comfort of the users is improved, the use method is simple, the practicability is high, and popularization is convenient.

The invention discloses a mattress, which comprises a cushion core formed by a plurality of springs arranged in arrangement, and an outer cover covering the outside of the cushion core. A longitudinal adjustment hole is arranged on the mattress at a position opposite to each spring. An elastic adjustment device is provided in the adjustment hole, and the elastic adjustment device includes a piston push rod, an upper backing plate, a sleeve, a screw rod, an adjustment spring, a moving block, a lower backing plate and a driving mechanism. The invention forms an inner and outer double-layer elastic structure, and the user can adjust the elasticity of each part of the mattress according to his own needs, thereby realizing the adjustment of the softness of any part of the mattress, and adopting electric adjustment or manual adjustment to realize the adjustment of the softness of the mattress. It has more selectivity, and is easy to operate and easy to realize.

The invention discloses an anti-running-grinding safety protection device. Shells on the two sides are connected through connecting bolts, and a steel wire rope is arranged in a gap between the shellson the two sides; and rolling wheels are arranged in a mounting groove and make contact with the steel wire rope, and first sliding grooves are formed in the upper side and the lower side of the mounting groove and are obliquely arranged in the direction from left to back to right to front. The invention further discloses a winching with the anti-running-grinding safety protection device. The winching comprises a base, vertical plates arranged on the two sides of one end of the base, a second rotating shaft arranged between the vertical plates on the two sides, a winding drum arranged outsidethe second rotating shaft in a sleeving mode and the anti-running-grinding safety protection device. When the winching normally works, the rolling wheels make contact with the steel wire rope, when the winching runs away, the steel wire rope reversely moves, the rolling wheels slide to the other sides of the first sliding grooves under the guiding effect of the first sliding grooves under the friction force of the steel wire rope, and thus the distance between the rolling wheels on the two sides is decreased; and meanwhile, the rolling wheels generate extrusion force on the steel wire rope, and thus the winching is prevented from running away.

The invention belongs to the field of hydraulic devices and particularly relates to a work method of a detecting device of a hydraulic cylinder for a lathe. The detecting device of the hydraulic cylinder for the lathe comprises a base. A groove for holding the hydraulic cylinder is arranged in the base. A travel box is arranged on the base. A sliding groove is arranged on the inner wall of the travel box. A transverse plate is connected with the sliding groove in a sliding manner. Scales are arranged on the side wall of the travel box. The hydraulic cylinder to be detected is arranged below the transverse plate. The output end of the hydraulic cylinder abuts against the bottom face of the transverse plate. The top of the travel box is fixedly provided with a cover plate through bolts. Thecover plate is provided with a hole. A threaded rod is rotationally connected with the cover plate. A rectangular block used for rotating the threaded rod is fixedly connected with the top of the threaded rod. A spring is fixedly connected with the upper surface of the transverse plate. The end, far away from the transverse plate, of the spring penetrates through the hole of the cover plate to befixedly connected with the threaded rod. Water with the level of 3cm is contained by the transverse plate. Western red dye with the density smaller than that of water is mixed with the water. According to the work method of the detecting device of the hydraulic cylinder for the lathe, electronic devices high in cost are not needed, the structure is simple, observation is convenient, and the detecting device is a mechanical component and is not prone to damage.

The invention discloses a production and printing process for pearl white aluminum-foil paper. The production and printing process comprises the following steps that (1) a hot melt adhesive adheres toa PET film with an aluminum foil; 2) bright copper paper is compounded on the aluminum foil; 3) pressing fit is carried out through a high-temperature roller of an externally-arranged heater to obtain the aluminum-foil paper; 4) the press-fit aluminum-foil paper is wound; and (5) a golden layer is compounded on the aluminum surface of the aluminum-foil paper through a wet compounding machine, water-based paint and red-yellow paste are adopted on compound ink of the aluminum-foil paper, and glue adopted in the compounding process of the aluminum-foil paper is white latex; and a drying oven isadopted for drying in the compounding process of the aluminum-foil paper, and the drying oven comprises five temperature control areas, wherein the temperature of a first area of the temperature control areas is controlled at 60 + / - 10 DEG C, the temperature of a second area is controlled at 80 + / - 10 DEG C, the temperature of a third area is controlled at 110 + / - 10 DEG C, the temperature of a fourth area is controlled at 80 + / - 10 DEG C, and the temperature of a fifth area is controlled at 60 + / - 10 DEG C. According to the production and printing process, the situation that the surface temperature of an actual ink layer is higher than a pre-controlled temperature, so that the aluminum-foil paper is discolored after being printed, and the surface of the adhesive is skinned is avoided.

The invention relates to the field of hydraulic equipment, in particular to a hydraulic cylinder detection device for a lathe. The hydraulic cylinder detection device comprises a base which is provided internally with a groove for placing a hydraulic cylinder. A travel box is arranged on the base. A sliding groove is arranged in the inner wall of the travel box. The sliding groove is slidably connected with a horizontal plate. A scale is arranged on the side wall of the travel box. A hydraulic cylinder to be detected is placed below the horizontal plate. An output end of the hydraulic cylinderis offset against the bottom surface of the horizontal plate. The top of the travel box is fixed with a cover plate through a bolt. A hole penetrates into the cover plate. A screw rod is rotatably connected on the cover plate. A rectangular block for rotating the screw rod is fixedly connected with the top of the screw rod. A spring is fixedly connected with the upper surface of the horizontal plate. A far end of the spring from the horizontal plate is fixedly connected with the screw rod through the hole in the cover plate. The horizontal plate is filled with water with the thickness of notless than 3cm. The water is mixed with a magenta dye with a density less than that of water. The application of the invention requires no expensive electronic devices, the structure is simple, the observation is convenient, and mechanical components are not easily damaged.

The invention discloses a magneto-rheological elastic body annular-membrane-type damper. The magneto-rheological elastic body annular-membrane-type damper comprises a working cylinder, a damping rod, two annular damping membranes, two annular damping sheets, an annular iron plate and two single-face annular electromagnets, wherein the working cylinder is composed of a circular pipe and the two single-face annular electromagnets, at least four pairs of magnetic poles are evenly distributed on one circular ring face of each single-face annular electromagnet, and a magnet exciting coil is wound on each magnetic pole; the annular iron plate is fixed on the inner circumference of the circular pipe, between the two single-face annular electromagnets, inside the working cylinder, the two annular damping membranes are composed of magneto-rheological elastic bodies, the outer circumferences of the two annular damping sheets are fixed on the inner circumferences of the two annular damping membranes respectively, and the outer circumferences of the two annular damping membranes are fixed on the inner circumference, between the two single-face annular electromagnets and the annular iron plate, of the circular pipe respectively in parallel; one end of the damping rod penetrates through two middle holes of the two annular damping sheets and is fixed with the two middle holes of the two annular damping sheets, and the other end of the damping rod extends out of the working cylinder via a sliding bearing on one of the single-face annular electromagnets.

The invention relates to the technical field of physiotherapy equipment, and especially relates to a vertebral column carding bed. The vertebral column carding bed comprises a support and a swing mechanism arranged on the support; the swing mechanism is capable of driving the human body to swing; an elastic unit is arranged on the support; and the elastic unit is capable of moving to and fro, relative to the support, along with swinging of a human body. According to the vertebral column carding bed disclosed by the invention, by arranging the elastic unit on the support, the elastic unit is inpressed connection with the human body when people lies in the bed, so that, the elastic unit swings along with swinging of the human body when the human body is driven to swing by the swing mechanism; and thus, no relative movement with the human body occurs so as to prevent damages caused on the human body due to sliding friction between the human body and the bed, thereby guaranteeing human body safety. The swing mechanism is capable of driving the human body to horizontally and vertically swing so as to have relationship between intervertebral joints straightened out as well as intervertebral space and intervertebral foramen enlarged, thereby relieving basic nerve root adhesion and compression, improving neurological functions and enhancing traction effects; moreover, the swing mechanism is also capable of promoting blood circulation, relaxing the muscles, promoting production of nitric oxide and balancing hormone.

The invention relates to a lock nut with a nut body and a metal fastening washer, the nut body having a threaded section with an internal thread and connecting to the threaded section the inner annular groove on the The fastening washer is held in the annular groove. Internal threads corresponding to the internal threads of the nut are processed on the inner circumference of the washer, and the internal threads of the washer are axially shifted by a distance relative to the internal threads of the nut, which distance is less than the The pitch of the internal thread. According to the invention, the thickness of the washer on its inner diameter is greater than the thickness of the washer on its outer diameter. The elasticity of the fastening washer and the holding force of the union nut can thus be adjusted.