59results about How to "Eliminate the risk of damage" patented technology

The invention provides a monitoring pick-up device and a cooling and dehumidifying method thereof. The device comprises a monitoring camera protection frame and a cooling and dehumidifying device; a water guide hole is formed in the bottom of the rear cover of the protection frame; the control panel of the cooling and dehumidifying device is fixedly arranged on the protection frame; the rear cover is provided with a hollow part in which a semiconductor chilling plate is corresponding arranged; a first radiator is fixedly connected to one side, facing the protection frame, of the semiconductor chilling plate; a first fan is fixedly connected with the first radiator; a second radiator is fixedly connected to the outer side of the semiconductor chilling plate; a second fan is fixedly connected with the second radiator; a water receiving tank is arranged on the inner side of the rear cover and located under the water guide hole; a water absorbing material is paved in and at the periphery of the water guide hole. The monitoring pick-up device has the advantages of high cooling and dehumidification effect, and low operation noise, and can be protected against the influence of environmental factors and operates well.

The invention discloses a Raymond mill system with a draught fan free of dust retention. An air current circulation milling discharging system is formed by the draught fan, a Raymond mill, a cyclone separation discharging device and an air return duct; a pressure-equalizing exhaust branch pipe is connected with the upper end of a cyclone pipe, multiple cyclones are arranged in the cyclone pipe, the lower end of the cyclone pipe is connected with a cyclone separator in the tangent direction, and a lower pipe orifice of the cyclone separator immerges into a circulation water tank which is connected with the upper end of the cyclone pipe; and an impeller of the draught fan is of a structure that blades are in a hollow and wedged shape and the backing plate is in a disc shape, and the contour line of the appearance of the draught fan is an evolvent. According to the Raymond mill system with the draught fan free of the dust retention, due to the fact that the cyclone pipe and the cyclones are arranged, low-resistance pressure-equalizing exhaust is achieved, and dust overflow caused by positive pressure of the system is eliminated; by means of the circulation water tank, wet-method high-efficiency dust removal and mineral powder recycling are achieved; and by means of the structure that the blades are in the hollow and wedged shape and the backing plate is in the disc shape, real-time cleaning of the dust on an impeller of the draught fan is achieved, the impeller strength of the draught fan is increased, the stability is enhanced, safety accidents caused by dust accumulation is effectively eradicated, and the application prospect is wide.

A system for combining a riveting nut to a plastic material component fixes a metal riveting nut (1) on a plastic component (2), so as to connect the plastic component to other components; wherein the other components are metallic or nonmetallic. Preferably, the plastic component (2) manufactured by an injection mold comprises a plurality of noses (4) for riveting the riveting nut (1), and the noses (4) perforate the holes particularly arranged inside the riveting nut (1).

The invention discloses a waste recovery box for automatic ladder step cleaning equipment, which is arranged on a position in the step cleaning equipment opposite to the lower side elevation of the current cleaned step. The waste recovery box is characterized by comprising a waste box and a seal brush which extends from the bottom edge of the waste box facing one side of the step elevation to the elevation, wherein the extending direction of the seal brush is an inverse gravity direction, and the end part of the seal brush is provided with sealing teeth matched with the grid-tooth shaped elevation; and a transition tube for externally connecting a drain tank is arranged at the depressed position on the bottom of the waste box. Application of the waste recovery box ensures that the automatic ladder step cleaning equipment can effectively collect and guide sewage generated when the current step is cleaned by closely attaching the step elevation to the matched seal brush in actual work, so that the sewage can completely flow into the waste box, and secondary pollution of the cleaning sewage to the automatic ladder and potential danger of electric control unit damage can be remarkably eliminated.

The invention relates to an apparatus and method for the production of bimaterial hollow bodies by means of injection overmoulding. The apparatus includes: a number (n) of basic mould cavities (1) or groups of basic mould cavities (1) inserted between a number (n+1) of overmould cavities (2a, 2b) or groups of overmould cavities (2a, 2b) or vice versa; and a number (2n) of punches (3) or groups of punches (3) which are fixed to a punch holder plate (32) that is mounted such that it can move transversely (DT) on a base plate (30) that is actuated to move longitudinally (DL) in order alternately to insert each punch (3) into one of the basic mould cavities (1), so as to mould a first layer, and into one of the overmould cavities (2a, 2b), so as to overmould a second layer. The apparatus also includes release means for releasing the finished bimaterial hollow bodies (P) and valve means (21) for alternately distributing the moulding material to one or other of the outer cavities.

The invention provides an incline-blade beater, wherein, the material cylinder is arranged on the base; the blades of material cylinder are 45 degrees inclined with the horizontal plane; when beating, the slurry material are impacted by the blades vertically and horizontally, to improve the contact percentage of slurry particles and the blades, eliminate the following hit condition between them, shorten the beating time, and eliminate the over-heat condition.

The invention discloses an automobile gas spring, which comprises an upper outer tube with an upper ball head at one end and a lower outer tube with a lower ball head at one end, a motor is fixed inside the lower outer tube; the motor is connected with a screw rod through a gearbox, A fixed sleeve is provided between the screw rod and the gearbox; a screw nut is set on the screw rod, a screw sleeve is provided on the screw nut, and one end of the screw sleeve is connected with the upper ball head through the upper end cover; There is a conduit outside the screw sleeve, and the conduit is provided with a positioning part that abuts against the upper end cover; a spring is sleeved on the conduit; the fixed sleeve is embedded with the lower outer tube, and one end of the lower outer tube is embedded with the upper end cover. The outer wall of the lower outer tube near the end of the upper end cover is circumferentially distributed with a plurality of axial protrusions, and the inner wall of the upper outer tube is provided with a plurality of guide grooves which are circumferentially distributed and cooperate with the plurality of axial protrusions . Compared with the prior art, the present invention can solve the problem that the lower and upper outer tubes of the existing automobile gas spring are prone to rotation.

The invention provides a pre-pressing clamp used for installing a circuit board assembly in inertial integrated navigation equipment. A support assembly and a bottom plate located on the support assembly are fixedly connected into a whole through screws, and a pressing assembly used for pressing and fixing a printed board placed on a positioning area is arranged on the left side of the upper end face of the bottom plate; a positioning assembly is installed on the right side of the upper end face of the bottom plate, the position of the positioning assembly corresponds to the installation position of an integrated circuit on the printed board and the position of a convex face on a heat dissipation plate, and the bottom plate and the positioning assembly are leveled through a balance plate assembly; and the positioning assembly is provided with a heat conduction rubber pad, is located at the right side of the printed board and is fixed on the convex face on the heat dissipation plate onthe positioning area to tightly press the heat conduction rubber pad, and after the heat conduction rubber pad is deformed and stabilized, the heat conduction rubber pad, the heat dissipation plate and the printed board are bonded and fixedly connected. The pre-pressing clamp solves the defects existing in manual installation, the assembly consistency and the one-time assembly qualification rate are improved, the assembly height of the heat conduction rubber pad is controllable, the reliability of the installed circuit board assembly is high, and the application value is high.

The invention relates to a crystal boat box with an air inlet valve, which includes a box body and an air inlet valve. The intake valve is arranged on the shell of the box body, which includes a guide post, a sealing cover, a sealing washer and an elastic component. The intake valve is provided with an elastic pre-force by the elastic component to push the guide post to cover the sealing cover on the through hole of the housing correspondingly, so that the sealing gasket is pressed between the sealing cover and the housing to form an airtight seal. Therefore, when you want to open a vacuum crystal boat box in a box, you only need to use an external force to reverse the deduction column, so that there is a gap between the sealing cover and the outer shell. The internal space of the box can balance the air pressure inside and outside the box, so that the box lid can be opened easily.