39results about How to "Not easy to quit" patented technology

The invention discloses a rotation driving docking mechanism with the fault tolerance characteristic. Two devices are in docking through mutual cooperation of a docking executing mechanism and a docking positioning mechanism. The docking executing mechanism is provided with rotary conical rotation heads driven by a drive mechanism to rotate. The docking positioning mechanism is provided with conical cylindrical positioning heads, the conical cylindrical positioning heads are matched with the conical rotation heads, and accordingly the conical positioning heads stretch into the positioning heads. Docking bosses are designed on the outer walls of the rotation heads, and positioning bosses are designed on the positioning heads. When the two devices are in docking, the rotation heads are inserted in the positioning heads, the rotation heads are driven by the drive mechanism to rotate, the lower surfaces of the docking bosses are in lap joint with the upper surfaces of the positioning bosses, and docking of the two devices is achieved. The rotation driving docking mechanism has the beneficial effects that conical docking faces are adopted between the docking executing mechanism and the docking positioning mechanism, certain fault tolerance is achieved in the docking process, and docking can be finished under the situation that the docking precision is not high.

The invention discloses a segment joint water leakage treatment method of a shield tunnel in an operation period. The segment joint water leakage treatment method of the shield tunnel in the operationperiod takes blocking as the main purpose, combines the blocking with discharging, adjusts measures to local conditions, and comprehensively treats water leakage. In the tunnel maintenance process, the segment joint water leakage treatment method of the shield tunnel in the operation period adopts the comprehensive treatment construction method including the steps of filling segment joints with acrylate in a pouring mode for blocking water, using EPDM (ethylene propylene diene monomer) strips for filling the joints again to achieve water resistance and preforming water outlet channels in thejoints preformed in two sides of the tunnel for discharging water, and achieves good treatment effect.

The invention discloses a dismounting and mounting tool for a stud bolt, which comprises an outer screw, wherein the upper end of the outer screw is connected with a handle; an inner thread hole is formed at the lower end of the outer screw; two symmetrical sides of an outer wall of the lower part of the outer screw are linearly cut; and a nut is in threaded combination with the outer screw. The tool has the advantages that the stud bolt is convenient and time-saving to dismount and mount.

The invention discloses a general self-lock type insulating protection sleeve matched with quick-connection terminals, leading the quick-connection terminals to be easy to be inserted into and unlikely to get out of the protection sleeve. Stop parts for the terminals are arranged at the middle section of the insulating sleeve body of the protection sleeve; stop grooves for the terminals are respectively arranged at the front and the back sides of the face part of the stop parts for the terminals, while corresponding stop lug bosses for the terminals are formed at the front and the back sides of the inner wall of the face part of the stop part for the terminals; a terminal cavity is arranged between the stop grooves for the terminals and the entry holes of plugging sheets; a longitudinal guiding convex groove is arranged at the central part of the inner wall of the face part of the terminal cavity; drum-shaped side parts are arranged at both sides of the middle section of the insulating sleeve body of the protection sleeve. The general self-lock type insulating protection sleeve matched with quick-connection terminals is mainly applied to match with the 250 type quick-connection terminals of different specifications.

The invention discloses an improved toner barrel which structurally comprises a barrel body, wherein a toner conveying piece is arranged inside the barrel body; a top cover is arranged on the top of the barrel body; a T-shaped spiral groove is formed in the surface of the barrel body; an L-shaped thread and at least one withdrawing-stopping groove are formed in the bottom of the top cover; a toner outlet is formed in the upper part of the top cover; a toner outlet sealing ring is arranged on the outer side of the toner outlet in a sliding manner; a second sealing ring and a third sealing ring are arranged at the upper part of the toner outlet sealing ring; a first sealing ring and a fourth sealing ring are further arranged on the outer side of the toner outlet. By adopting the improved toner barrel, the defects in the prior art can be improved, by changing the structure of the thread and omitting the structure of double-piece sponges and springs between the toner outlet and the toner outlet sealing ring, the sliding resistance is reduced, and after the toner outlet is opened, no extra pressure is caused between the toner barrel and a machine, so that the toner barrel can rotate smoothly.

The invention discloses a composite truss, a composite truss assembly and a composite truss combination. The composite truss comprises a strip-shaped rigid structure body (2), a strip-shaped rigid connecting body (4) forming an inferior angle with the structure body (2) and clamping-connecting devices (6) arranged on the connecting body (4) and is characterized in that a plurality of connecting holes (8) are formed in the rigid structure body (2) and are matched with connecting parts and used for connection of the multiple structure body (2), the number of the clamping-connecting devices (6) is at least two, each clamping-connecting device (6) comprises a clamping groove (10) and a clamping hook (13) used in quitting from the clamping groove (10) and used for decreasing an opening of the clamping groove (10). The composite truss is suitable for a wall framework structure consisting of multiple trusses provided with fasteners and one net plate through splicing, connection of the matching portion of a spliced and combined wall framework structure and the clamping-connecting device (6) is simple, and quitting does not easily occur after connection. Therefore, good connecting rigidity and connection can be ensured, and accordingly the problem occurred in the prior art is solved.

The invention discloses a trapezoid locking steel plate with radian for treating femoral neck fracture, which comprises a trapezoid locking steel plate with a narrow upper end and a wide lower end; the trapezoid surface on the trapezoid locking steel plate, fit with the close end of femur, has radian; a central hole is arranged in the central position of the trapezoid locking steel plate; six locking holes are arranged in the trapezoid locking steel plate, and are parallel to the direction of the central hole; the six locking holes are arranged in a diffused manner towards the upper end, the left lower end and the right lower end by taking the central hole as the center; two locking holes are arranged in each direction; and locking bolts are arranged on the locking holes. In the invention, the locking holes which can fix the bolts in parallel are arranged on the trapezoid locking steel plate, so that the bolts can be completely fixed in parallel in the internal fixation treating link in the femoral neck fracture operation, the trapezoid locking steel plate can be placed uprightly or reversely and has radian so as to match the shape of near end of the femur, so that the bolts are hard to withdraw, the operation is simple, the time consumption is less, the fixation is reliable, and postoperation recovery is fast.

The invention discloses a minimally-invasive lumbosacral vertebrae axial fusion inner fixing system with a lock. The system is characterized in that a multi-hole connecting block is included, a locating aiming device and a screw implanting device are arranged on the multi-hole connecting block respectively, a locating aiming mechanism is arranged on the locating aiming device, and a fixing device is arranged between the multi-hole connecting block and the screw implanting device. As an improvement, through holes are evenly formed in the multi-hole connecting block, and the locating arming aiming device and the screw implanting device are arranged on the through holes of the multi-hole connecting block respectively. Fastening holes corresponding to the through holes are formed in the multi-hole connecting block. The fastening holes are connected with the fastening bolts in a thread mode. The system is simple in structure, the number of adjustable parts is small during using, operation is easy and convenient, the fact that displacement errors are small can be guaranteed, and implantation accuracy is improved.

The invention discloses an embedded optical cable splice box prevented from being submersed by water, and belongs to the technical field of optical cable splice box water resistance and protection. The embedded optical cable splice box can ascend or descend automatically according to rising or falling of the water level of water accumulated in a pit till the splice box returns back to the original position. The embedded optical cable splice box comprises a base, a circular buoyancy tank and a telescopic pull rod. An embedded optical cable splice box body is arranged above the circular buoyancy tank, the lower bottom face of the embedded optical cable splice box body is fixed to the top end of the telescopic pull rod, and the bottom end of the telescopic pull rod is fixed to the inner wall of a pull rod placing cavity. An air-pressure lock pin controlled by an air-pressure control device is arranged in a pin hole of the base. The air-pressure control device comprises an air-pressure piston cylinder, a rope and a buoyancy power mechanism. The buoyancy power mechanism pulls and drives a piston of the air-pressure piston cylinder through the rope by virtue of the ascending buoyancy to move so as to drive the air-pressure lock pin to be opened and closed, so that the embedded optical cable splice box can freely ascend and descend under the action of the buoyancy of the circular buoyancy tank, and it is guaranteed that a signal transmission and monitoring device in the embedded optical cable splice box cannot be submersed by flood.

The invention discloses a multifunctional stop valve, and belongs to the field of valves. The multifunctional stop valve comprises a pipe body, a plug and a connecting rod system, wherein the connecting rod system comprises an operation component, a limiting plate and a rod component; the connecting rod system is arranged to control mounting and dismounting of the plug in the pipe body, so that apipeline has multiple functions; when a handle is moved to the uppermost side and cannot continue to move, a threaded hole is blocked by the plug, the pipeline is firmly blocked and closed, and cannotachieve a water passing function; when the handle is easily screwed to move downwards and partly and the plug is still located in the threaded hole, a fixing rod has left-right moving space, and at the moment, the function of the stop valve is achieved under the action of a first compression spring; the first compression spring is reversely extruded to generate a gap which water can pass through;and the threaded hole is blocked for sealing by the plug in the direction opposite to the force direction of the first compression spring; when the handle is screwed down forcibly, the plug can slideinto a slide way from the threaded hole, and at the moment, only a common pipeline water passing function is achieved.

The invention discloses a guide type urethra protection expansion device, and belongs to the technical field of medical auxiliary instruments. A guiding type urethra protection expansion device comprises an expansion structure which is arranged at the front end of a urethroscope body in a sleeving mode and used for guiding the urethroscope body to enter a urethra. The expansion structure is detachably connected with the urethroscope body, and the expansion structure can slide back and forth in the axis direction of the urethroscope body; a deformation structure is arranged on the expansion structure, and the deformation structure can deform after being extruded by the outside to fix the expansion structure on the urethral orifice; a limiting structure is arranged between the expansion structure and the urethroscope body and used for controlling relative sliding between the expansion structure and the urethroscope body, the urethroscope body can be guided to be inserted into the urethra, the problem of mucosa damage caused by repeated urethra friction is not prone to occurring, pain of a patient is relieved, the patient is easy to recover after an operation, and the urethroscope is convenient to use. Meanwhile, the operation efficiency can be improved.

The invention discloses an intelligent buoyancy waterproof optical cable cross-connecting box, and belongs to the technical field of optical cable cross-connecting box waterproof protection. The optical cable cross-connecting box can automatically rise according to rising of the flood level and can automatically descend according to descending of the flood level, and the optical cable cross-connecting box is automatically reset and arranged on a base after the flood disappears. The optical cable cross-connecting box comprises the base, a circular floating box and a telescopic pull rod. The optical cable cross-connecting box is arranged above the circular floating box, the lower bottom face of the optical cable cross-connecting box is fixed to the top end of the telescopic pull rod, and the bottom end of the telescopic pull rod is fixed to the inner wall of a pull rod containing cavity. A pin hole is formed in the base, and an electronic lock controlled by a buoyancy control device is arranged in the pin hole. The electronic lock is driven by the buoyancy control device to be opened and closed, and therefore the optical cable cross-connecting box can feely ascend and descend under the action of the buoyancy of the circular floating box, and it is guaranteed that signal transmission monitor equipment in the optical cable cross-connecting box cannot be inundated with the flood.

Disclosed is a dilated interbody fusion cage, comprising a fusion body (5) and a pushrod (7) connected to the axial thread of the fusion body (5) inside of the fusion body (5). The vertical projection of the fusion body (5) is a rectangle with a chamfer angle. An upper part of the fusion body (5) is a base part (4), a lower part is a head part (1), and an integral structure of a pawl teeth part (3) is arranged between the base part (4) and the head part (1). The pawl teeth part (3) is composed of side walls (17) of left and right two pawl teeth parts. An II-shaped pawl teeth frame (2) is connected to the pawl teeth part (3). A pawl teeth frame chute (16) is on the top of the side walls (17) of the two pawl teeth parts. A side wall trapezoid groove (18) is at the position of the connection to the head part (1). The bottom surface of the head part (1) is curved. A clamping head hole (19) is on the upper surface (15) of the pawl teeth frame. Pawl teeth (9) and a corresponding pawl teeth frame hole (10) are outside of two side walls of the pawl teeth frame (2). A pawl teeth frame head (11) fitted with the side wall trapezoid groove (18) on the side wall of the pawl teeth part is provided at the bottom of two side walls of the pawl teeth frame (2). A pushrod clamping head (8) is provided at the bottom of the pushrod (7). A clamping head hole (19) is mounted on the pushrod clamping head (8). A clamping head communicating groove (12) is on the pushrod clamping head (8). A pushrod shaft hole (13) provided at the pushrod (7) along the axis of the pushrod (7) is connected to the clamping head communicating groove (12).

The invention discloses a general self-lock type insulating protection sleeve matched with quick-connection terminals, leading the quick-connection terminals to be easy to be inserted into and unlikely to get out of the protection sleeve. Stop parts for the terminals are arranged at the middle section of the insulating sleeve body of the protection sleeve; stop grooves for the terminals are respectively arranged at the front and the back sides of the face part of the stop parts for the terminals, while corresponding stop lug bosses for the terminals are formed at the front and the back sides of the inner wall of the face part of the stop part for the terminals; a terminal cavity is arranged between the stop grooves for the terminals and the entry holes of plugging sheets; a longitudinal guiding convex groove is arranged at the central part of the inner wall of the face part of the terminal cavity; drum-shaped side parts are arranged at both sides of the middle section of the insulating sleeve body of the protection sleeve. The general self-lock type insulating protection sleeve matched with quick-connection terminals is mainly applied to match with the 250 type quick-connection terminals of different specifications.

The invention discloses an expansion screw sleeve, and belongs to the technical field of screw sleeves. When a screw is tightly screwed, the inner end of the screw sleeve can be clamped in a wall hole very well, so that the screw sleeve is not prone to retreating in a use process. The expansion screw sleeve comprises a body, wherein a neck pressing groove is formed in the front end of the outer side wall of the body, a reinforcing bead and an annular pressing piece are arranged in a sleeving manner on a neck pipe in the neck pressing groove, a pressing rod is arranged in a pipe cavity of the neck pipe, and two ends of the pressing rod are connected with the annular pressing piece; a pressing rod hole is formed in the pressing rod in the pipe cavity, an extrusion rotating pin is arranged in the pressing rod hole, a cavity of the reinforcing bead is filled with a glue body of AB glue, a lower cavity is filled with a hardener of the AB glue, and inner walls of an upper bead and a lower bead can be bonded and connected together after the glue body and the hardener are mixed; and an upper puncture needle and a lower puncture needle are arranged on the inner walls of the upper bead and the lower bead respectively.

The invention discloses a locking type sealing washer with high airtightness. The locking type sealing washer with high airtightness comprises a rubber ring. A sealing part is arranged on the front side of the rubber ring. A sealing part is arranged on the back side of the rubber ring. A skeleton is arranged inside the rubber ring. The skeleton comprises a first piece body, a second piece body, afirst pressing ring and a second pressing ring. A separation distance is reserved between the first piece body and the second piece body. A center hole is formed in the first piece body. A center holeis formed in the second piece body. The first pressing ring is arranged on the side, away from the second piece body, of the first piece body and abuts against the first piece body. The second pressing ring is arranged on the side, away from the first piece body, of the second piece body and abuts against the second piece body. A first annular protrusion is arranged on the face of the side, awayfrom the first piece body, of the first pressing ring. A second annular protrusion is arranged on the face of the side, away from the second piece body, of the second pressing ring. According to the locking type sealing washer with high airtightness, the strength of the part, in a sealing groove, of the deformation enlargement part of the skeleton is utilized to improve the sealing effect of the washer on a sealing surface.

The invention provides a technical scheme of threaded fusion cage. The threaded fusion cage comprises a fusion body and a push rod which is arranged in the fusion body and is axially connected with the fusion body in a threaded manner. The threaded fusion cage is characterized in that the vertical projection of the fusion body is a chamfered rectangle, the upper portion of the fusion body is a base portion while the lower portion is a head portion, and an integral structure of an inverted-tooth portion is arranged between the base portion and the head portion; the inverted-tooth portion is provided with a front inverted-tooth wall and a back inverted-tooth wall, two side walls are lacked, and corresponding inverted-tooth wall holes are formed in the two inverted-tooth walls; the head portion is an inverted trapezoidal platform, parallel head openings of the two inverted-tooth walls are formed in the bottom surface of the head portion, and both sides of the head opening in the inner wall of the head portion are inclined planes; a push rod transverse hole penetrating the push rod is formed vertical to the axis of the push rod in the middle lower portion of the push rod, and a push rod axle hole which is connected with the push rod transverse hole is formed along the axis of the push rod in the top end of the push rod.