56results about How to "Prevent arbitrary rotation" patented technology

The invention relates to an LED (light-emitting diode) which comprises a lamp body, a lamp head and a lamp connecting socket. The daylight lamp is characterized in that the lamp head comprises an end cover and a fixed seat; the end cover is provided with a thread hole; the end surface of the end cover is provided with a limiting column; the outer peripheral surface of the end cover is provided with a tooth groove; the fixed seat is provided with a hole cavity; the end cover is contained in the hole cavity and rotates relatively; a limiting groove is molded on one end surface of the hole cavity of the fixed seat; the limiting column penetrates through the limiting groove and is limited at two ends of the limiting groove; an elastic plate is molded at the inner side surface of the hole cavity; one end of the elastic plate and the inner side surface of the hole cavity are connected into a whole; and the free end of the elastic plate is provided with a raised line which can be matched with the tooth groove. According to the invention, the lamp body can be fixed at the position after rotating for any angle relatively to the fixed seat, and the reliable positioning at the direction of illumination of the lamp body is ensured; and because of the rotation limiting effect of the limiting groove, the lamp body only can rotate within the range of 180 degrees, the lamp body is avoided from rotating within the range of 360 degrees randomly, thus preventing an electrode lead wire from being knotted or broken due to the lamp body rotates for an oversize angle.

The invention discloses an annona squamosa picking device which comprises a gripping rod. The right side of the gripping rod is connected with a sawtooth pressure bar by a reset spring, the left sideof the gripping rod is connected with a trigger by a reset rotary shaft, a battery box is arranged inside the gripping rod and is connected with a guide block by a first wire, the lower end of the guide block is connected with the reset rotary shaft, the sawtooth pressure bar is connected with a steering gear train by a driving gear, the steering gear train is arranged at the lower end of a threaded rod, a connecting pipe is connected with the outer side of the threaded rod and is connected with a slide groove by a slider, the slide groove is formed in the inner side of a sleeve, and the sleeve is arranged at the upper end of the gripping rod. The annona squamosa picking device has the advantages that the annona squamosa picking device can bring convenience for picking annona squamosa at high locations, the simplicity of the annona squamosa picking device can be improved, and wires can be prevented from being twined in disorder; the probability of circuit failure of the annona squamosapicking device can be reduced, users or other people can be prevented from being accidentally injured by cutters, and the 2 cutters can be conveniently driven to cut branches connected with the annona squamosa.

Disclosed is a conveniently-maintained electrical cabinet apparatus equipped with an instrument panel. The electrical cabinet apparatus comprises an instrument panel assembly (9) which is mounted on a fixed shaft (4), wherein the instrument panel assembly (9) comprises two fixed plates (7) which are fixedly connected with the bottom of the instrument panel (99), arranged in a front-back manner, and used for being glidingly matched with a fixed base (5) which is arranged separately, and two rotary locking sliding blocks (6) which are glidingly mounted on the fixed shaft (4) and symmetrically arranged on the upper and lower sides of the two fixed plates (7); and each rotary locking sliding block (6) comprises a sleeve part (62) which is arranged on the fixed shaft (4) in a sleeving manner, and two inclined panels (69) which are arranged in a front-back manner separately and fixed on the front and back sides of the sleeve part (62).

The invention relates to the radio communication major teaching experiment auxiliary equipment technical field, and specially relates to a radio communication major teaching experiment shielded box; the radio communication device can be conveniently placed in the box body, so teachers can easily carry out radio communication major teaching experiments, thus improving practical values. After long term usage, a dirty transparent observation board can be easily wiped, thus allowing teachers to observe the radio communication device in the work chamber, and improving the usage reliability; the shielded box comprises a box body, a storage plate, a base plate, a left electric telescoping cylinder, a right electric telescoping cylinder, a left stay rope, a right stay rope, a left first guide wheel, a left second guide wheel, a left guide ring, a right guide ring, a right first guide wheel, a right second guide wheel, four sets of reset springs, a driving shaft, a front driving rod, a rear driving rod, and a slide column; a rotary through hole penetrating back and forth is arranged in middle of the front end of the box body, and arranged in the lower middle portion of the transparent observation board; a mechanical seal is arranged in the rotary through hole.

An in-row seat mechanism easy to maintain comprises a plurality of seat units (9) mounted on a connecting shaft (4). At least one of the seat units (9) comprises two downward insertion fixing columns (7), wherein the downward insertion fixing columns (7) are fixedly connected with the bottom of a seat body and used for slidably inserting into respective base plates (5) in a matched manner, the lower portion of each downward insertion fixing column (7) is inserted into the insertion hole of the corresponding base plate (5) and provided with a support shoulder (721) used for being connected with a ring seat (521) in the insertion hole, and a buffer elastic pad (51) is fixed at the bottom of each base plate (5) and used for contacting with the bottom.

A row seat device with a stable structure comprises multiple seat units (9) mounted on a connecting shaft (4), wherein each of the multiple seat units (9) comprises two downwards-inserting fixing pillars (7) which are arranged at the bottom of the seat body front and back and glidingly matched in respective base plates (5); the lower part of each of the two downwards-inserting fixing pillars (7) is inserted into an inserting hole in the corresponding base plate (5), support shoulders (721) used for connecting a ring seat (512) in the inserting hole are arranged at the lower part of each downwards-inserting fixing pillar (7), and an elastic buffer pad (51) is fixedly arranged on the bottom surface of each base plate (5) and used for contacting with the bottom surface.

The invention provides a power electrical cabinet with an angle-adjustable instrument panel. The power electrical cabinet comprises an instrument panel assembly (9) mounted on a fixed shaft (4), wherein the instrument panel assembly (9) comprises two fixed plates (7) and two rotary locking sliders (6); the two fixed plates (7) arranged front and back are fixedly connected with the bottom part of an instrument panel (99), and are in sliding fit with a fixed pedestal (5) arranged in a split manner; the two rotary locking sliders (6) are installed on the fixed shaft (4) in a slidable manner and arranged on upper and lower sides of the two fixed plates (7) symmetrically; and each rotary locking slider (6) comprises a sleeve part (62) sleeving the fixed shaft (4), and two sloping panels (69) which are arranged front and back separately and fixed at the front and rear sides of the sleeve part (62).

The invention relates to the technical field of wall body connecting parts, in particular to an expansion bolt. The expansion bolt comprises a first hollow column body, a second hollow column body anda third body, all of which are sequentially connected. The third body is provided with a notch, and an external connecting part sequentially penetrates through the first hollow column body, the second hollow column body and the notch. The first hollow column body is provided with reinforcing ribs, the second hollow column body is provided with at least one reinforcing assembly, the reinforcing assemblies comprise first connecting strips and second connecting strips, triangles are formed between the first connecting strips, the second connecting strips and the wall body of the second hollow column body, and the first connecting strips and the second connecting strips are flexible glue parts. As the reinforcing ribs are arranged on the wall body of the expansion bolt, the resistance of theexpansion bolt in a wall body is improved, and the expansion bolt is prevented from rotating in the wall body at will; and through the arrangement of the reinforcing assemblies, binding force of the expansion bolt and the wall body is improved, the stability of the expansion bolt in the wall body is improved, connecting force of the expansion bolt as a connecting part is improved, and the expansion bolt is suitable for being used for various wall bodies.

An adjustable electrical cabinet mechanism with an instrument panel, comprising an instrument panel assembly (9) installed on a fixed shaft (4), the instrument panel assembly (9) including: being arranged front and rear with the bottom of the instrument panel (99) And it is used to slidably fit the two fixed plates (7) in the fixed base (5) provided separately; it is slidably installed on the fixed shaft (4) and symmetrically arranged on the two fixed plates (7) ) two rotation locking sliders (6) on the upper and lower sides, each of the rotation locking sliders (6) includes a sleeve part (62) sleeved on the fixed shaft (4) and front and rear separate Two inclined plates (69) are arranged and fixed on the front and rear sides of the sleeve part (62).

The invention provides a high-precision front wheel axle concentricity detection device, comprising: a detection platform; a vertical support seat, which is arranged on the detection plane and is arranged close to the bottom edge of the detection plane; and a horizontal support seat, which is arranged on the detection plane and is located between the vertical support seat and the vertical pressing arm; the horizontal pressing arm is arranged beside the horizontal support seat; the reference mechanism includes: a detection seat; a shaft mounting seat, which is fixedly arranged on the seat plate; and A reference shaft, which is fixedly arranged on the shaft mounting seat, and the reference shaft is parallel to the vertical direction; a measuring mechanism, which includes: an aiming rod, on which a centimeter is arranged; an auxiliary aiming mechanism, which includes: a reference base; a center The shaft is fixedly arranged on the end face of the reference base; the convolution cylinder, and the end of the central shaft that is not connected to the reference base is provided with a limit ring that restricts the sliding out of the convolution cylinder. The beneficial effects of the present invention are: on the premise of facilitating the pulling of the aiming rope, the alignment of the reference shaft and the shaft body is improved.

The invention relates to an LED (light-emitting diode) which comprises a lamp body, a lamp head and a lamp connecting socket. The daylight lamp is characterized in that the lamp head comprises an end cover and a fixed seat; the end cover is provided with a thread hole; the end surface of the end cover is provided with a limiting column; the outer peripheral surface of the end cover is provided with a tooth groove; the fixed seat is provided with a hole cavity; the end cover is contained in the hole cavity and rotates relatively; a limiting groove is molded on one end surface of the hole cavity of the fixed seat; the limiting column penetrates through the limiting groove and is limited at two ends of the limiting groove; an elastic plate is molded at the inner side surface of the hole cavity; one end of the elastic plate and the inner side surface of the hole cavity are connected into a whole; and the free end of the elastic plate is provided with a raised line which can be matched with the tooth groove. According to the invention, the lamp body can be fixed at the position after rotating for any angle relatively to the fixed seat, and the reliable positioning at the direction of illumination of the lamp body is ensured; and because of the rotation limiting effect of the limiting groove, the lamp body only can rotate within the range of 180 degrees, the lamp body is avoided from rotating within the range of 360 degrees randomly, thus preventing an electrode lead wire from being knotted or broken due to the lamp body rotates for an oversize angle.

The invention relates to a computer optical disk driver mounting device. In the invention, a hanging port formed with a hanging bolt is mounted at a side of a host housing, the hanging port is selectively mounted at an end of a driver bracket by a hung hanging rod. The hanging rod has a hanging space, a guide rib sloped downwards is formed at a position corresponding to the hanging space. The invention is capable of freely inserting and pulling the driver bracket for loading the optical disk driver from the host housing so that maintaining of a computer becomes easier, thereby capable of inserting and pulling components inside the host housing more easily. At the same time, the optical disk driver moved to outside of the host housing would not optionally moved to inside of the hout housing, thereby damages on operators resulted by the optical disk dirver when maintaining inside of the computer can be prevented.

The invention relates to a novel raw seat structure rapid to lock, which comprises a plurality of seat units (9) mounted on a connecting shaft (4). At least one of the plurality of seat units (9) comprises two down-insertion fixed pillars (7), wherein the two down-insertion fixed pillars (7) are fixedly connected with the bottom of a seat body, are arranged front and back and are used for being sliding fit in respective baseplates (5); the lower part of each of the two down-insertion fixed pillars (7) is used for being inserted into an insertion hole of the corresponding baseplate (5) and a supporting shoulder platform (721) is arranged at the lower part and is used for being connected with a ring seat (512) in the insertion hole; guide mounting inclined planes (72) are formed at the bottom ends of both the two down-insertion fixed pillars (7); the guide mounting inclined planes (72) are used for taking a guide effect when the two down-insertion fixed pillars (7) are inserted into the insertion holes of the baseplates (5); a buffer elastic cushion (51) is fixedly arranged on the bottom surface of each baseplate (5) and is used for being in contact with the bottom surface.

The invention relates to a catheter bending measuring ruler and a measuring method, which belong to the technical field of catheter bending and forming, and solve the problems of low efficiency and high cost of the qualified inspection of the bending direction of the catheter in the prior art. The catheter bending measuring ruler of the present invention comprises a disc ruler (1), a sliding ruler (2) and a slide rail rotating ruler, the disc ruler (1) is used for measuring the angle between adjacent straight line segments of the catheter, and the sliding ruler (2) is used for Measure the length of the straight section of the catheter, and the slide rail rotation ruler is used to measure the plane rotation space angle of the adjacent curved section of the catheter. The catheter bending measuring ruler of the present invention can replace the current bending manufacturing inspection fixture, reduce the difficulty and workload of bending manufacturing, measurement, and revision procedures, reduce subjective judgments that lead to repeated trial and error in sampling work, and improve the accuracy of catheter bending measurement , which in turn speeds up the speed of catheter optimization and reduces production costs.

The invention discloses a blood sampling needle protective sleeve which comprises a needle base provided with a needle base and a protective sleeve rotatably connected with the needle base by virtue of a first connecting structure, wherein the first connecting structure comprises a connecting convex column molded at the needle base and a connecting hole formed in the connecting end of the protective sleeve, and the connecting hole is rotatably buckled with the connecting convex column; the blood sampling needle protective sleeve further comprises a locking structure capable of locking the protective sleeve at an initial position; the locking structure comprises a lateral wing and a clamping slot, the lateral ring is molded at the needle base and radially extends, and the clamping slot is formed in the side wall of one side, adjacent to the lateral ring, of the protective sleeve and can be buckled with the lateral ring at the initial position. According to the blood sampling needle protective sleeve, the protective sleeve can be connected with any needle base by virtue of the first connecting structure, so that the protective sleeve has commonality and can be produced in batches; the locking structure can be used for locking the protective sleeve at the initial position, so that the protective sleeve is prevented from rotating randomly, further influencing the visual lines of medical care personnel and reducing the working efficiency in a needle head use process.

The invention discloses a platform calibration transferring vehicle of additional material printing equipment. The platform calibration transferring vehicle of the additional material printing equipment comprises a first machine frame, a second machine frame, a travelling device, a locking device, a transferring rail and a correcting device; the travelling device is arranged on the first machine frame and drives the first machine frame to move in an X-axis direction along a ground rail; the ground rail is arranged between the sides of a plurality of printing platform plate; the locking device is used for locking rotation of the second machine frame; the second machine frame is arranged above the first machine frame; the transferring rail is arranged on the second machine frame; the correcting device enables the transferring rail to align at a guide rail of the printing platform plate, so that when the transferring vehicle moves to a preset position, the correcting device enables the second machine frame provided with the transferring rail to align at the rail of the printing platform plate and the distance between the rails on the two sides maintains consistent; and the freely rotating second machine frame reduces resistance during alignment, so that when a printing machine and a drying machine are transferred to the next printing platform plate to perform alignment, rotation of the second machine frame for bearing weight is facilitated.