42results about How to "Simplify the spatial structure" patented technology

The invention is a kind of series mechanism in a kind of laser process technology, which can realize the adjustment of relative posture and position of laser head and piece, the merits lie in: it can realize aplanatism process, the reflected times of laser beam is little, the energy loss is small, the control is convenient. The series mechanism is made up of several light arm through rotary junctions, finally, a light arm and laser head are connected, two light arms are connected through a rotary junction, there only has a reflecting mirror in the rotary junction, the control system control the rotary junction to rotate, makes the two light arms to rotate relatively, thus adjusts the space position of each light arm, finally realizes the adjustment of final posture and position of piece relative to the laser head, the invention uses robot arm control system as the control system of the whole three-dimension series mechanism space movement; each rotary junction in the series mechanism sets a reflecting device, the mirror adjusting mechanism and rotary junction of the reflecting device are coupled together, rotates according to some function relation with the rotary junction, thus adjusts the space position reflecting mirror, maintains the laser beam advancing along the light arm axis direction after the reflected by the mirror.

The invention relates to the field of LED display screens, in particular to a front demounting structure of an LED module. The front demounting structure comprises a front module and a back module, which are respectively mounted on an LED display screen; front fastening pieces are arranged on the front module, and rotary spring mechanisms are arranged on the back module; the front module is pushed to enable the front fastening pieces to push one ends of the rotary spring mechanisms to achieve the fastening of the front fastening pieces and the rotary spring mechanisms; jigs are movably mounted on the front module; the jigs are pushed to push the other ends of the rotary spring mechanisms to enable the rotary spring mechanisms to be separated from the fastening of the front fastening pieces in a rotating manner to pull out the front module. According to the invention, the LED module can be mounted in and demounted from the front of the LED display screen; an operator can position a failure LED module only from the front without walking forward and backward; therefore, the mounting, maintenance and demounting time can be greatly saved, and the whole mounting and demounting process is simple, convenient and quick.

The invention discloses an asphalt conveying device with a preheating function. The asphalt conveying device is characterized by comprising a gland, a bearing block, a sealing subassembly and a central spindle, wherein a first heat-conduction oil channel, a second heat-conduction oil channel and an asphalt channel are formed in the central spindle; the bearing block is sleeved on the lower portion of the central spindle; the gland is sleeved on the upper portion of the central spindle; a sealing cavity is formed between the gland and the outer wall of the central spindle and between the inner wall of the bearing block and the outer wall of the central spindle; a moving ring sealing subassembly is arranged in the sealing cavity; the sealing cavity is divided into shaft wall sealing space and shaft end sealing space by the sealing subassembly; and heat-conduction oil circularly flows in the heat-conduction oil channels so as to heat asphalt in the asphalt channel. By using the asphalt conveying device with the preheating function, troubles caused by the reason that temperature-sensitive media such as the asphalt remain in a rotating joint are avoided; the working efficiency of a terminal working device can be improved; the asphalt conveying device is compact in structure; a preheating part or a heat-insulation part is a built-in part; the asphalt conveying device can be assembled or disassembled integrally; and a bearing is not required to be disassembled when sealing is maintained.

The invention relates to a manufacturing method for a microminiaturized optical spectrograph slit. Firstly, a slit billet is subjected to oxidization, adhesive coating and photoetching to form a pattern with scallops, the pattern with the scallops undergoes corrosion, adhesive removal, adhesive coating and photosetching to form a slit hole pattern, the silt hole pattern is subjected to ICP etching or wet corrosion to form a slit billet of an impervious groove, and then the slit billet of the impervious groove is subjected to the adhesive removal, the ICP etching or the wet corrosion to obtain the scallops and a slit hole. The slit with small volume and low price is prepared by a micro-machined technology, so a microminiaturized optical spectrograph has the advantages of compact structure, small volume and the reduction of manufacturing cost, and is easier for integration.

The invention relates to a cesium-helium mixed atom electrodeless lamp comprising the following units: a gas chamber filled with cesium-helium mixed atoms; a radio frequency coupling coil evenly winded on the outer wall of the gas chamber and used for forming a radiofrequency field in the gas chamber; a radio frequency power amplifier module connected with the radio frequency coupling coil and used for providing a radio frequency power exciting the helium atom to form transition spectral line fluorescence from the first excitation state to the ground state; a shield box having light holes on two ends, wherein the gas chamber is arranged in the shield box, and the gas chamber end faces aim at the light holes of the shield box; the gas chamber is made of high light transmission material; the outer wall besides the end face of the gas chamber is provided with a coating used for highly reflecting the helium atom transition spectral line fluorescence formed between the first excitation state to the ground state; the invention also relates to a cesium excitation state spectrum method using the cesium-helium mixed atom electrodeless lamp; the cesium-helium mixed atom electrodeless lamp is simple in structure, low in cost, and high in efficiency.

The invention relates to the related technical field of intelligent communication, and discloses a router state sensing and adjusting communication case which comprises a case body. A case cover is rotatably mounted on the case body, an airflow cavity plate is fixedly mounted on the case cover, an airflow spraying plate is fixedly mounted on the inner wall of the airflow cavity plate, a heat dissipation fan is fixedly mounted on the airflow cavity plate, the cooling fan is communicated with an airflow pipe, and the tail end of the airflow pipe is communicated with the airflow spraying plate. According to the router state sensing and adjusting communication case, through the arrangement of the heat dissipation adjusting system, heat dissipation net plates with concave structures are arranged on the side wall and the bottom wall of the case, so that heat dissipation and heat removal gaps exist between the case and the mounting wall surface, and the problem that the working state of the router is affected due to accumulation of heat in the case is solved; and meanwhile, a heat conduction metal plate is arranged on the inner wall of the router carrying plate, so that the router is attached to the heat conduction metal plate for heat absorption, and the heat dissipation condition of the router is improved.

The invention discloses a machining center with laser scribing or laser cutting. The machining center comprises a laser scribing mechanism, a cutting mechanism and a discharging mechanism. The cutting mechanism comprises a base, the left end of the base is connected with a liftable first cutting saw blade, the laser scribing mechanism is arranged above the first cutting saw blade and comprises a mounting plate, a through hole for materials to pass through is formed in the middle of the mounting plate, laser heads for scribing are mounted on the front side and the rear side of the through hole, and the two laser heads are slidably connected with the side face of the mounting plate. According to the machining center, scribing and cutting are integrated, the equipment space layout is saved, the machining efficiency can be improved, meanwhile, the machining quality can be guaranteed, and the labor intensity can be greatly reduced.

The invention relates to a steel support and steel trestle integrated structure and a construction method thereof. The construction method comprises the following steps that a plurality of stand column piles are constructed in a foundation pit; steel diagonal bracings are constructed above the foundation pit, the steel diagonal bracings are arranged on the multiple stand column piles, and the two ends of the steel diagonal bracings are connected to foundation pit surrounding purlins; and gaskets are laid on the tops of the steel diagonal braces, a steel trestle is laid on the tops of the gaskets, and the relative static friction force between the gaskets and the steel diagonal braces is smaller than that between the gaskets and the steel trestle. According to the construction method, the steel diagonal bracings and the steel trestle share a vertical stress system, the number of steel members and the number of stand column piles are reduced, construction procedures are saved, multi-procedure crossing and structure crossing are avoided, and economic benefits are improved; and in addition, through laying of the gaskets, the steel trestle can be kept stable without moving when bearing upper loads, meanwhile, relative movement of the steel diagonal bracings and the gaskets is not affected, deformation of the foundation pit can be better matched, and damage to the stand column piles is avoided.

The embodiment of the invention discloses a teaching development board and a robot. The teaching development board comprises a PCB, wherein the PCB is provided with at least one connecting hole; the teaching development board further comprises at least one connecting pin, wherein the connecting pins are connected with the connecting holes in a matched and inserted mode, are used for connection with an expanded circuit and enable the PCB to be detachably connected with the expanded circuit; and the PCB is provided with multiple parallel half-duplex serial ports. According to the teaching development board in the embodiment, the PCB and the expanded circuit are connected detachably, so that a connection structure of the teaching development board and the expanded circuit is simplified, and the connection mode is more flexible; the physical structure of the teaching development board has higher stability, and therefore the application range is wider; and since communication with multiplemobile devices is performed through the half-duplex serial ports, communication efficiency and compatibility are high, the wiring difficulty of the teaching development board is lowered, and the teaching development board is more convenient to use by a user.

The invention discloses a luggage lock which comprises a lock clamp, a lock body, two turtle-liked components, a large fitting and a push button, wherein the lock clamp comprises a lock clamp face, and a lock hook is arranged at the lower part of the back face of the lock clamp face; the lock body comprises a lock face and a lock bottom, a socket is arranged at the upper end of the lock face and is matched with the lock hook of the lock clamp, and a guide slot is arranged at the lower end of the lock face; the two turtle-liked components are symmetrically arranged in the socket, each of the turtle-liked components is provided with a relatively recurved head part, the tail end of the head part of each of the turtle-liked components is matched with the hook-shaped connection part of the lock hook, and the outer side of each of the turtle-liked components is connected with the inner wall of the cavity of the lock face through a spring; the large fitting which is in Y shape, the head part of the large fitting is matched with the inner side of the head part of each of the turtle-liked components, the lower part of the large fitting is inserted into the guide slot in the cavity of the lock face, a foot part of a quarter circle is arranged at one side of the lower part of the large fitting, and a hook part is arranged at the tail end of the foot part of the large fitting; and a rotation shaft is arranged on the bottom face of the push button, the rotation shaft is connected with the large fitting, push button fittings which are rotatably arranged on the rotation shaft is arranged on the bottom face of the push button, and a locating pin matched with the foot part of the large fitting is arranged on the bottom face. The luggage lock tends to be simpler and more humanized, more reasonable and convenient for use.

The invention provides a preparation method of recombinant human glucagon-like peptide-1 analogue fusion protein. By using an engineered yeast fermentation broth supernatant containing the recombinanthuman glucagon-like peptide-1 analogue fusion protein as an object, heating enzyme deactivation is carried out in the presence of sodium octoate and tranexamic acid, so that the degradation and biological activity loss of target protein in a separation and purification process are reduced, and the stability of the recombinant human glucagon-like peptide-1 analogue fusion protein for injection isimproved.

The invention discloses a secondary ejection mechanism for a speaker mesh of a door panel. The secondary ejection mechanism comprises a speaker mesh ejector pin panel and a speaker mesh ejector pin bottom plate, which are fixed together through screws, wherein a plurality of ejector pins are fixedly arranged on the speaker mesh ejector pin panel, and a speaker mesh base plate is fixedly arranged on a die core plate to be prevented from falling; a nitrogen spring is arranged on the speaker mesh ejector pin bottom plate and the speaker mesh ejector pin base plate; in addition, ejection limiting blocks are arranged on the surface of the speaker mesh ejector pin panel. The secondary ejection mechanism is powered by the nitrogen spring, and when a product is ejected, the speaker mesh is ejected by the speaker mesh ejector pin panel and the speaker mesh ejector pin bottom plate under the action of the nitrogen spring. After ejection is stopped, the product is continuously ejected along with movement of the ejector pin to finish secondary ejection operation of the whole product. According to the mechanism adopting such a structure, an ejection distance of the speaker mesh is well controlled by utilizing an ejection process of a die, and the mechanism is a feasible mechanism of which the ejection process is stable and safe.

The invention discloses a multi-split air conditioning system. According to the multi-split air conditioning system, refrigerant noise can be reduced without additionally arranging related parts, so that the space structure of an indoor unit is simplified, and the production cost of the whole unit is reduced. The multi-split air conditioning system comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises an outdoor heat exchanger, a compressor, an outdoor throttling element and an outdoor fan, the indoor unit set comprises a plurality of indoor units connected in parallel, and each indoor unit comprises an indoor heat exchanger and an indoor throttling element; and the multi-split air conditioning system further comprises a controller, the controller is configured to control the dryness x of a refrigerant at an inlet of the indoor heat exchanger to be not equal to a, and a is an equal dryness value corresponding to an equal dryness line in a pressure enthalpy diagram of the refrigerant. According to the multi-split air conditioning system, the controller controls the dryness x of the refrigerant at the inlet of the indoor heat exchanger of the multi-split air conditioning system (namely before the refrigerant flows through the indoor heat exchanger) to be not equal to a so as to eliminate the flowing noise of the refrigerant, other parts do not need to be additionally arranged, the indoor unit structure is simplified, the production cost of the whole unit is reduced, and the product cost competitiveness is improved.

The invention discloses a voice meter of an electrombile and integrated voice electrical components. A voice chip is added in a traditional electrombile meter, and various to-be-emitted voice data onthe electrombile is stored according to a voice segment order. According to external signals including communication signals of the meter, an intelligent chip mcu manages the signals, to-be-played voice segment code data is transmitted to the voice chip according to a communication protocol of the voice chip, and then a loudspeaker plays various sounds through a power amplifier circuit. Therefore,the traditional single electrombile meter can integrate a plurality of original electrical components, such as a car backing horn, a car driving horn, a voice fault reminder, a remote control anti-theft alarm, a flasher, a power voice reminder, an electrombile operational voice reminder and the like. The number of the electrical components is greatly reduced, the wiring harness and wire lead aresimplified, the reliability is strengthened, and the cost is reduced.