A protective plug characterised because includes a monolithic profile body (1) made of dyed-through polytetrafluoroethylene (PTFE), height H1=10-220 mm, with the lower cylindrical part (2), diameter 1=5-100 mm, height H2=1-90 mm, and a part, connected through its upper end, of a spherical layer profile (4), radius R1=5-100 mm, whose upper surface, diameter 2=10-110 mm, turns into a shoulder of a low cylinder (5) profile, height H3=0.5-50 mm. The upper round end of the cylindrical part (2) of this plug is connected with the part of the reversed truncated taper (7) profile of analogous diameters 1 and 2 and the angle of flare a=from 2 to 179.9, whose upper surface of diameter 2 also turns into an analogous low cylinder (5) profile.

A device for masking securing boreholes in rims with masking elements having a storage container for the masking elements, a pressure generation unit, a connection unit connected to the storage container and an at least substantially tubular discharge device, which is secured at one end to the connection unit and which has a discharge opening at the opposite end for discharging the masking elements. The discharge device has a tube wall in which a channel for conducting a fluid is formed, the channel being connected to the pressure generation unit. The tube wall consists at least partially of an elastic material, through which the channel runs or in which a cavity connected to the channel is formed, such that, when the pressure of the fluid is changed, the tube wall deforms and releases the clamping on the masking elements. The connection unit and the discharge device are formed preferably as one piece in a 3D printing method.

A device for masking securing boreholes in rims with masking elements having a storage container for the masking elements, a pressure generation unit, a connection unit connected to the storage container and an at least substantially tubular discharge device, which is secured at one end to the connection unit and which has a discharge opening at the opposite end for discharging the masking elements. The discharge device has a tube wall in which a channel for conducting a fluid is formed, the channel being connected to the pressure generation unit. The tube wall consists at least partially of an elastic material, through which the channel runs or in which a cavity connected to the channel is formed, such that, when the pressure of the fluid is changed, the tube wall deforms and releases the clamping on the masking elements. The connection unit and the discharge device are formed preferably as one piece in a 3D printing method.

A wheel rim guard includes a body having an obverse surface and reverse surface, the surfaces in mutually opposed orientation and having a thickness (t) intermediately disposed between the surfaces and with the surfaces mutually terminating at an outer circumferential periphery. The guard includes a first channel disposed within the reverse surface of the body, and a first flexible gasket disposed within the first channel. The guard also includes a handle disposed on the obverse surface of the body. A holder may be included that clips to the handle of the guard to position the guard for hands-free operation.

A wheel rim guard includes a body having an obverse surface and reverse surface, the surfaces in mutually opposed orientation and having a thickness (t) intermediately disposed between the surfaces and with the surfaces mutually terminating at an outer circumferential periphery. The guard includes a first channel disposed within the reverse surface of the body, and a first flexible gasket disposed within the first channel. The guard also includes a handle disposed on the obverse surface of the body. A holder may be included that clips to the handle of the guard to position the guard for hands-free operation.

A protective device for spraying of a wheel is mainly composed of a support, a cylinder, a push plate, bases, floating shafts, shaft sleeves, stop screws, copper sleeves, rotatable pins, springs, elastic collars, end covers, flange plates, guards and a mandrel, wherein the bases and the cylinder are fixed on the support, a flange plate is fixed on each base, an output shaft of the cylinder is connected with the push plate, a copper sleeve is enclosed in each base via an elastic collar, an end cover encloses a spring and a floating shaft inside a shaft sleeve, and the spring is connected with the floating shaft and an end cover respectively.

The present application discloses an automatic powder cleaning process and device for wheel bolt holes. The device comprises a vacuum pump, a steady pressure tank, a powder cleaning robot, a powder cleaning gun, a control system and accessories. According to the process and the device, shielded protection is canceled, and powder at the mounting part of a wheel bolt hole is automatically cleaned, so that the process and the device are suitable for various wheel products, and the labor and the labor cost are reduced; the problems that a lot of different types of protective plugs needed for wheels are inconvenient to customize and store and high in cost are avoided.

A method for masking securing holes of rims, which are moved on a transport device of a rim-coating system, wherein the method includes the step of determining the position and number of non-masked securing holes. A first non-masked securing hole of a rim is approached, and the first non-masked securing hole is masked with a first masking element by means of a manipulation device. Only in the subsequent step is a second non-masked securing hole of the same rim approached, and the second non-masked securing hole is masked with a second masking element by means of the manipulation device.

A method for masking securing holes of rims, which are moved on a transport device of a rim-coating system, wherein the method includes the step of determining the position and number of non-masked securing holes. A first non-masked securing hole of a rim is approached, and the first non-masked securing hole is masked with a first masking element by means of a manipulation device. Only in the subsequent step is a second non-masked securing hole of the same rim approached, and the second non-masked securing hole is masked with a second masking element by means of the manipulation device.

A wheel rim protector is a device for safeguarding the rim of an automobile tire during the application of cleaning or decorative compositions in detailing processes. The protector is designed to be held by a user or temporarily attached to the rim. The wheel rim protector comprises a fan-like structure with multiple ribs pivotally connected to a handle, facilitating selective expansion and retraction. A shield, affixed to the ribs, includes magnets for magnetic attachment to ferromagnetic materials of the rim. The protector may be made from resilient and washable materials, which ensures durability and ease of maintenance in various detailing applications.