32results about How to "Avoid loosening and shifting" patented technology

The invention discloses an oblique punching mechanism for a stamping die. The punching mechanism comprises an upper die and a lower die. The upper die comprises an upper die base, an upper pad, an upper clamping plate, a backing plate and a stripping plate which are sequentially connected from top to bottom. The bottom of the upper die base is symmetrically provided with two guide slide plate, a check block is arranged between each guide slide plate and the upper pad, and a sliding block is in sliding connection with each guide slide plate. First return springs are connected between the sliding blocks and the check blocks in the abutting mode. A first inclined surface is arranged on the outer side of the bottom of each sliding block, and a diagonal punch is arranged on the inner side of the bottom of each sliding block. The lower die comprises a lower support plate, a bottom block and a lower die base which are sequentially connected from bottom to top. The top of the lower die base isprovided with a lower template and two driving wedges, and the lower template is provided with a lower die edge insert core of a punching hole matched with the diagonal punch, and the two driving wedges correspond to the two sliding blocks in one-to-one correspondence mode. Each driving wedge is provided with a second inclined surface matched with a first inclined surface on the corresponding sliding block. The oblique punching mechanism for the stamping die can effectively punch the inclined surface of a product.

The invention relates to a rapid die clamping device for a die casting machine. The rapid die clamping device for the die casting machine comprises a template arranged on the die casting machine, wherein rapid clamping mechanisms capable of clamping the die are arranged on the template; each rapid clamping mechanism comprises a driving component arranged on the side wall of the template; the template is provided with a channel corresponding to the driving component; a locking connecting rod is arranged on the channel in a sliding mode; the head end of the locking connecting rod is connected with the driving component; the tail end of the locking connecting rod is provided with a locking column which can extend into the die and is clamped with the die; the locking column is a conical column, a triangular pyramidal column, a wedged column or a trapezoidal column; the rapid clamping mechanisms are symmetrically arranged on the left side wall and the right side wall of the template; and 2to 8 rapid clamping mechanisms are arranged. By the rapid die clamping device, the template of the die casting machine can be rapidly clamped with the die; and each rapid clamping mechanism has the clamping force close to that of the corresponding locking block, so the die can be prevented from being loosened or displaced and the die is connected with the template safely and reliably.

The application relates to the field of sealing technology, and in particular to a smart electric energy meter, comprising an upper casing, a lower casing, a fastener, a sealing cover and a pressing buckle; the upper casing is provided with a mounting groove through which the fastener is installed The groove is fixedly connected to the upper casing and the lower casing, and the sealing cover is matched and installed in the installation groove; the pressing buckle includes a clip, an upper baffle, a connecting plate and a lower baffle; the upper baffle is connected to the top of the connecting plate, and the lower The baffle is detachably connected with the bottom end of the connecting plate; the clamping piece is connected with the upper baffle, and the upper casing and the lower casing are provided with a clamping position; the upper baffle covers the opening of the installation groove, and the clamping piece is buckled and installed in In the clamping position, a pressing space for pressing the upper casing and the lower casing is jointly formed between the upper baffle and the lower baffle. In the present application, the sealing cover and the pressing buckle are used to realize the double sealing of the fasteners inside the electric energy meter, so that it is difficult for outsiders to open the electric energy meter, so as to achieve the purpose of preventing electricity theft, and effectively solve the problem of the existing electric energy meter. The technical problem of poor electricity stealing effect.

The invention relates to a split head used for building floor, which comprises a cylinder; the height of the cylinder equals to the design thickness, upper layer steel bar fixed slots which are mutually interlaced and cooperated with the floor upper layer steel bars are provided on the upper portion of the cylinder, lower layer steel bar fixed slots which are mutually interlaced and cooperated with the floor lower layer steel bars are provided on the lower portion of the cylinder. The present invention aims to provide the split head used for building floor, which can conveniently control the thickness of the floor, the split head cannot be easily shifted by cooperating with the upper layer steel bar and the lower layer steel bar, so that the accuracy for controlling the thickness of the floor can be guaranteed.

A quick double-sided plug-in device includes a base, and two clamping blocks and a driving device that are mounted on the base. A first installation part extending transversely is disposed in the middle of the upper surface of the base, and a PCB is mounted on the first installation part. Moving devices are disposed on the base on both sides of the first installation part, the clamping blocks aremounted on the moving devices, multiple components are mounted on the clamping blocks, and the driving device drives the moving devices to drive the clamping blocks to move and close oriented to the direction of the first installation part, in order to plug the components in the PCB; or move and open oriented to the direction away from the first installation part to disengage the components from the clamping blocks. The device can plug in the multiple components at one time, and so, the work efficiency is greatly improved, and the artificial labor intensity is reduced; and the device can ensure balanced contact between the components and the PCB during plugging and can ensure uniform length of plug-in mounting and the alignment accuracy of the multiple components. In addition, the plug-indevice of the invention can be applied to the plug-in mounting of the components of various specifications, has a wide application range, is strong in practicability, and has strong promotion significance.