39results about How to "Prevent pullback" patented technology

The present invention discloses a letter spelling machine and a protection method. The letter spelling machine comprises a main body casing. A speaker is fixedly installed to one side of the front endof the main body casing, and one side of the front end of the main body casing away from the speaker is provided with a start switch. According to the invention, slide rails, springs, connecting buttons, baffle plates and a protective plate are used, when people uses the letter spelling machine, the letter spelling machine can be pushed out along the sliding rails, when the letter spelling machine is completed pushed out, the baffle plates block the connecting buttons, the springs are prevented from pulling the connection buttons back, one end of each of the baffle plates is connected by a torsion spring, and the torsion force of the torsion spring is slightly larger than the pulling force of the spring when a display screen is pushed out. When equipment falls, the main body casing is vibrated, under the action of external force, the springs drive the connecting buttons to open the baffle plates, the connecting buttons are retracted, the display screen connected to one side of each ofthe connecting buttons, the display screen is retracted into the main body casing, the secondary damage to the display screen is avoided, and therefore, the safety of the equipment is improved.

The invention discloses a dustproof display in the field of computer accessories. The dustproof display comprises a display screen, a base, a support pillar and a back shell. The back shell is in a shape like a rectangular basket with one open side, a rectangular frame shaped front shell matched with the shape and the size of the back shell is fixed in an opening of the back shell, the display screen is fixed between the back shell and the front shell, and the back shell is fixed on the base through the support pillar. A vertical rotating shaft is arranged in the left side of the back shell, elastic reset pieces are respectively arranged on two ends of the rotating shaft, and dustcloth is twined on the rotating shaft. A kerf is arranged on a position which is opposite to the rotating shaft at the left side of the front shell, and a rectangular clamping groove is arranged in a position which is opposite to the kerf at the right side of the front shell. One end of the dustcloth, which is far away from the rotating shaft, penetrates through the kerf and is fixed with a clamping board, and the shape of the clamping board is matched with that of the clamping groove. According to the scheme, dust in the environment can be effectively prevented from falling on the display screen, the dust accumulated on the display screen is reduced, and furthermore, when the display is used, an image can be more clearly displayed, so that the degree of fatigue of eyes of a user is relieved.

The invention relates to the technical field of computer devices and discloses a computer device capable of integrating various interfaces. The computer device comprises a connector lug. One end of the connector plug is movably connected with a cable arranging device, one end of the connector plug runs through and extends to the inside of the cable arranging device, the inside of the cable arranging device is fixedly provided with a limit block, one end of the connector plug is movably connected to the inner wall of the limit block, and a positioning block is fixedly mounted on the inside thecable arranging device. Cables are prevented from being randomly placed during use. The problem that the cables are placed in confusion and easily entangled and affect the use of the connector plug issolved. The cables are prevented from swinging in the cable arranging device during use by means of the limit block. The cables are twisted on a cable arranging rod by means of matching of a connecting rod and the cable arranging rod to prevent cable staggering. By means of matching of a tension spring and a fixed rod, the cables can stretch freely, and placement and use of the cables are facilitated.

The present invention provides a steel wire seal, comprising a lock head and a steel wire with one end connected on the lock head. The lock head is provided with a lock cylinder hole for inserting the steel wire and a marble hole for containing the marble and a spring; the hole diameter of the marble hole is matched with the diameter of the marble; the front part of the marble hole is obliquely penetrated through the middle part of the lock cylinder hole; the size of an area of which the marble hole and the lock cylinder hole penetrate is less than the diameter of the marble. The seal is characterized in that the lock cylinder hole and the marble hole are composed by enclosing a hole wall on the lock head and the surface of an internal core; the internal core is located at the tail end between two holes and is fixedly connected with the lock head; the part where the internal core located at the tail end of the marble hole and the spring form a stop structure; the processing method comprises the steps as follows: compression molding the lock head, the parison comprising a big hole cavity, then filling with the marble and the spring and inserting in the big hole cavity by the specific internal core, and then fixedly connecting the lock head and the steel wire, thereby avoiding the secondary drilling process of the marble hole; the seal has the advantages of accurate size of eachhole, good performance and convenient process.

A packaging strip comprises a plastic lock bar, each of the upper and lower faces of the plastic lock bar is provided with a plurality of rows of anti-pullback clamp teeth, each row includes two anti-pullback clamp teeth, one end of the plastic lock bar is provided with a lock cylinder, each of the front and rear ends of a lock hole of the lock cylinder is provided with a bolt, each bolt has a unidirectional-insertion reverse-fastening structure; a plastic lock bar receiving space is formed between the front and rows of the bolts. The plastic lock bar and the lock cylinder are formed by singleinjection molding; the production process is simplified; production capacity is improved. The lock bar and the lock cylinder are of double-side anti-pullback structure, top-bottom double safety is achieved by single locking via the lock hole, and pullback of the strip is effectively avoided; the efficient space is reserved between the two rows of the bolts in the lock cylinder, and slight packaging force can be ensured for application of the packaging strip. The packaging strip has the advantages of simple structure, good convenience of use and good durability.

The invention discloses a three-rod gate machine for a power supply service customer service hall. The three-rod gate machine comprises a shell support (1), a three-rod rotating rod (2), a turntable (3), a limiting pin (4), limiting columns (5), an electromagnetic lock card (6), an electromagnetic lock (7), a damping spring (8) and a control circuit; the three-rod rotating rod (2) is connected with the turntable (3) inside the shell support (1), the periphery of the turntable (3) is provided with the limiting pin (4) and the electromagnetic lock card (6), the shell support (1) is provided with two limiting columns (5), the travel distance of the limiting pin (4) is limited by the two limiting columns (5), the electromagnetic lock (7) controlled by the control circuit is buckled with the electromagnetic lock card (6) so as to limit the rotation of the turntable (3), one end of the damping spring (8) is connected onto the turntable (3), and the other end of the damping spring (8) is hinged onto a fixed point. By adopting the three-rod gate machine, the problem that other persons are too close to the service personnel is solved, the confidence breach risk is eliminated, the legal rights and interests of customers are guaranteed, and the service order is regulated.

The invention relates to a rotatable multi-interface charging pile for an electric automobile. The rotatable multi-interface charging pile comprises a pedestal and a connecting wire, wherein a first motor is arranged in the pedestal, and a first connecting shaft is arranged at the upper end of the first motor; a base is arranged at the upper end of the pedestal; a charging pile is fixed in the middle of the upper end of the base; supporting rods are inlaid on two sides of the upper end of the pedestal; and a solar panel is connected to the upper ends of the supporting rods. The rotatable multi-interface charging pile has the beneficial effects that the base can rotate on the pedestal by utilizing the first connecting shaft in order to drive the charging pile and a charging box to rotate, so that the orientation of a charging panel can be changed, the angle of the charging panel can be rotated by 360 degrees, a charging head can be conveniently connected to the electric automobile, a situation that the charging head cannot be directly connected to the electric automobile due to the parking position of the electric automobile is avoided, or a situation that a charging port part is bent when the charging head is charged in order to affect the service life of the charging head is avoided.

The invention relates to the technical field of medical instruments, and in particular to a pull-back self-locking syringe. The syringe comprising a syringe body and a core rod movably disposed in thesyringe body. The syringe body is provided with a self-locking structure; the core rod is provided with a first frustum matched with the self-locking structure; the piston sleeves the core rod; the piston is internally provided with an elastic member; the core rod moves forward so that the first frustum crosses the self-locking structure, and the elastic member is compressed and drives the core rod to pull back; and the rear end surface of the first frustum abuts the self-locking structure. The pull-back self-locking syringe of the present invention comprises the self-locking structure disposed on the syringe body and the first frustum disposed on the core rod and matched with the self-locking structure. In the process of pushing the core rod forward, the first frustum passes over the self-locking structure, a first boss presses the elastic member on the piston, and the elastic member always pulls back the core rod, so that the rear end face of the first frustum always abuts the self-locking structure to achieve self-locking and prevent the syringe from being reused.

The invention discloses a battery cell diaphragm unwinding process and a diaphragm unwinding device thereof, and the battery cell diaphragm unwinding process comprises the following process steps: S1, unwinding; s2, diaphragm tensioning adjustment; s3, deviation rectification; S4, diaphragm buffering; and S5, circularly drawing the film. The battery cell diaphragm unwinding device comprises a material roll, a swing rod mechanism, a deviation rectifying mechanism, a buffering mechanism, double rollers and a diaphragm drawing roller, and a belt-shaped diaphragm is wound on the material roll; the deviation rectifying mechanism is arranged at the rear section of the oscillating bar mechanism; the caching mechanism is arranged at the rear section of the deviation rectifying mechanism; the double rollers are arranged at the rear section of the caching mechanism; the membrane drawing roller is arranged at the rear section of the double rollers, and the membrane drawing roller drives the membrane to circularly move back and forth above the lamination platform after pressing the membrane, so that the membrane horizontally covers the lamination platform or the pole piece. The film laminating machine has the functions of diaphragm tension adjustment, position deviation correction, automatic buffer connection, tension detection and the like, continuous tensioning of the diaphragm and consistency of internal tensioning force are guaranteed, the surface quality of a laminated film is improved, and the laminating efficiency is effectively improved.

The invention discloses an office swivel chair with foldable armrests, and relates to the technical field of office swivel chairs. The swivel chair includes a seat plate. A first armrest and a secondarmrest are fixedly mounted at two sides of the upper surface of the seat plate respectively. The first armrest is provided with a receiving cavity. A first rotating shaft, a second rotating shaft anda placement plate are disposed in the receiving cavity. The second armrest is provided with a groove. The middle of the groove is provided with a transverse bar. One end of the transverse bar penetrates a through hole in the middle of a sliding plate and is fixedly connected to the inner wall at one side of the groove. According to the chair, storage of the placement plate is facilitated througharrangement of the receiving cavity, the first rotating shaft can rotate to take the placement plate out of the receiving cavity, the placement plate can rotate from a vertical position to a horizontal position through the second rotating shaft, so that through arrangement of the first and second rotating shafts, the chair has an effect of convenient folding.

The invention discloses a camera. On the basis of the invention, an interface plate with a cable plugging interface and a waterproof threading plug are arranged on a lead machine base, so that an external cable can be plugged with the cable plugging interface without being dragged by a large margin after penetrating through the waterproof threading plug; moreover, a camera main body is provided with an adapter plate which is in signal connection with a machine core, and the adapter plate and the interface plate are respectively provided with a first inter-plate plugging interface and a second inter-plate plugging interface which are complementary, so that the first inter-plate plugging interface can be plugged into the second inter-plate plugging interface only through butt-joint assembly of the camera main body close to the lead machine base, and the signal connection between the external cable and the movement is realized. Therefore, pulling and pulling-back of the external cable can be reduced or even avoided in the installation process of the camera, the installation operation of the camera can be simplified, and the sealing fit between the external cable and the waterproof threading plug is prevented from being damaged.

The invention relates to the technical field of textile, and discloses an environment-friendly device for clamping thread ends of doubling thread breaking by overlarge tension. The environment-friendly device comprises a shell, wherein a fixed block is fixedly connected to the left end of the inner wall of the shell, a channel is formed in the axis of the fixed block, a limiting block is movably connected to the right end of the channel, a disc is fixedly connected with the right end of the limiting block, rollers are movably connected with the right end of the fixed block, a guide column is movably connected with the upper end of the roller, a connecting rod is fixedly connected with the left end of the guide column, a compression spring is movably connected with the upper end of the connecting rod, a rotary disc is movably connected with the right end of the guide column, a T-shaped rod is movably connected with the front end of the rotary disc, and a running pulley is movably connected with the lower end of the T-shaped rod. Under the action of the compression spring, the guide column moves downwards, so that the two rollers press the doubling thread at the same time, so that the doubling thread is clamped between the rollers, and the thus effect of preventing the thread ends from being pulled back when the doubling thread breaks is achieved.