49results about How to "Won't loose easily" patented technology

The invention discloses a permanent connection structure of lighting tubes in a light fitting, which has a firm structure, is difficult to loosen and can simultaneously fix a plurality of lighting tubes. The light fitting is provided with a permanent seat (2) and a lamp holder (7) which are opposite to each other, wherein the permanent seat (2) is provided with at least one slot (3) with an upperopening; the plug end of the lighting tube (1) is plugged in the lamp holder (7); the fixed end of the lighting tube (1) is fixed in the slot (3); the end face of the fixed end of the lighting tube (1) is provided with a lug boss (101); the upper part in the slot (3) is provided with a convex arris (201); the lug boss (101) locks the convex arris (201) so that the fixed end of the lighting tube (1) is fixed in the slot (3); an upper cover (4) is arranged above the permanent seat (2); the upper cover (4) is rotatablely connected with the permanent seat (2); two sides of the upper cover (4) arefixed with a pulling buckle (5) respectively; a hook lock (202) is extended out on two lateral surfaces of the permanent seat (2) respectively; and the pulling buckles (5) are buckled in the hook locks (202). The permanent connection structure can be widely used in the field of light fittings.

The invention provides an electrically conductive connecting device. The electrically conductive connecting device comprises a female connecting end and a male connecting end, wherein the inside of an insulated cup body of the female connecting end comprises two symmetrically distributed N contact pieces, two CC2 contact terminals and two CC1 contact pieces; the male connecting end comprises an insulating base body, and the outer side of the insulating base body is provided with an N contact ring and a CC1 contact ring; an upper end of the insulating base body is provided with an L contact point; and the outer side of an upper end face of the insulating base body is embedded with a CC2 contact ring; a lower end of the insulating base body is tabled with a grounding base body; the grounding base body is a conductor and connected with the ground; when the male connecting end and the female connecting end are connected, the N contact ring and the N contact pieces are laminated; the L contact point and an L contact terminal are laminated; the CC1 contact ring and the CC1 contact pieces are laminated; the CC2 contact ring and the CC2 contact terminals are laminated; and a grounding shrapnel and the grounding base body are laminated. According to the electrically conductive connecting device provided by the invention, the female connecting end and the male connecting end can be accurately located, and the female connecting end can be accurately shifted to a joint of the female connecting end and the male connecting end; besides, electrical contact structures are tightly combined, and a certain error is allowed when the electrical contact structures are connected.

An anti-loose fixing structure for a memory is used in a laptop. The memory is inserted in a memory slot; the memory slot is formed in a main board of the laptop; a rectangular groove is formed in a body of the anti-loose fixing structure for the memory; the width of the groove is the same with the thickness of the memory; the anti-loose fixing structure for the memory is in close fitting with one side of the memory through the groove; one side of the memory is far away from the memory slot; and the anti-loose fixing structure for the memory is adhered to the main board of the laptop. When the anti-loose fixing structure for the memory is used, the memory can be tightly fixed on the main board of the laptop through the groove, in a laptop falling test, the memory cannot loose or drop from the memory slot easily, starting crash is avoided after the laptop falling test is finished, and poor display after the laptop is started is also avoided.

The invention discloses pet food and a preparation method of the pet food. The preparation method comprises the following steps: molding a content body; covering the surface of the content body with meat substances and tightly covering the surface of the content body with the meat substances by using an outer skin to form pet food; and baking the pet food under a pre-set baking condition. According to the preparation method, the content body is molded by adopting an industrial molding manner; meanwhile, the outer skin is used for tightly covering the surface of the content body with the meat substances so that the outer skin is not easy to loosen in the baking process and the chewing and occlusion time of animals is improved; the production efficiency of the pet food can be improved and the product performance of the pet food can also be improved; the cost of raw materials of the pet food is reduced; furthermore, some needed nutritional substances or other additives can also be added into the pet food according to the requirements.

The invention relates to the technical field of building nodes and discloses a precast concrete beam with high-strength connecting nodes. The precast concrete beam comprises a concrete longitudinal beam, wherein the concrete longitudinal beam is internal provided with erection ribs, transverse stress ribs are arranged in the concrete longitudinal beam, longitudinal stress ribs are arranged in theconcrete longitudinal beam, and the erection ribs, the transverse stress ribs and the longitudinal stress ribs are connected in a staggered way. According to the precast concrete beam with high-strength connecting nodes, the concrete longitudinal beam can bear outside pull forces, shear forces and bending forces under the joint effects of the erection ribs, the transverse stress ribs and the longitudinal stress ribs so that the concrete longitudinal beam can bear the effect of a force of a concrete transverse beam, the frictional forces between arc-shaped clamp-connecting grooves and arc-shaped clamp-connecting plates are increased under the joint effects of upper clamping teeth and lower clamping teeth, and thus the arc-shaped clamp-connecting grooves and the arc-shaped clamp-connecting plates are difficult to separate under external forces.

The invention relates to the field of handling devices, in particular to a stair-climbing cargo truck, which includes a base, a driving structure, an auxiliary structure, an adjustment structure, a protective structure and a rotating structure. Building, through the setting of the auxiliary structure, the use of the truck is more convenient, and it can cooperate with the driving structure to carry the goods upstairs. By adjusting the setting of the structure, it is more convenient for the truck to load the goods, and the goods can be loaded in a horizontal state. Through the setting of the protective structure. When the goods are moved by the truck, the goods can be placed more stably, and the small goods are not easy to fall during the process of carrying upstairs. Through the setting of the rotating structure, the truck can be more convenient to carry the goods, and you can choose according to your needs. Use different methods to make the goods more stable on the truck.