33results about How to "Flexible adjustment of opening" patented technology

This technology relates to measuring tools, and provides a linear size measuring tool, especially a direct reading integrated inner and outer calipers, which have two states of inner clamp and outer clamp, including a pair of clamp arms that are symmetrically arranged and cross-hinged by rotating pins. One side of each pincer arm is a clamping section, and the other side is a reading section; at the end of the clamping section, there is a chuck that can adjust the angle between the clamp arm and the clamp arm in a plane determined by a pair of clamp arms. The two chucks with pointed fronts are arranged symmetrically. When the chuck is inclined inward, it is an inner card; ;When the chuck tilts inward to the limit position, the included angle between the chuck axis and the clamping segment axis is 12°; when the chuck tilts outward to the limit position, the included angle between the chuck axis and the clamping segment axis is 25°.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated inner and outer caliper capable of realizing direct reading. The integrated caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the clamping section is provided with a locking device for locking the pair of caliper arms within a certain included angle; and the locking device comprises a locking piece provided with a kidney-shaped hole and two locking screws movably arranged in the kidney-shaped hole, wherein one locking screw is connected with one caliper arm through a thread pair.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to a multifunctional caliper capable of realizing direct reading. The multifunctional caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the clamping section is further provided with a locking device for locking the pair of caliper arms within a certain included angle; and the front end of each caliper head is in wedge shape.

The invention provides a platform screen door protection device. A multi-section sliding door is arranged on one side of a fixing side box; the width of the multi-section sliding door is greater thanthe width of a train door; the multi-section sliding door comprises at least two subsidiary sliding doors; one of the subsidiary sliding doors at one end of the multi-section sliding door is slidablyconnected to the fixing side box along a guide rail device; every two adjacent subsidiary sliding doors are slidably connected to each other along the guide rail device; an extension and retraction member of a driving device is fixedly connected to another one of the subsidiary sliding doors at the other end of the multi-section sliding door; a driving source of the driving device drives the extension and retraction member to extend or retract along the direction parallel to tracks; and an extension and retraction controller of the driving device controls the extension and retraction range ofthe extension and retraction member. Therefore, when the type of a stopped train is different or when the train deviates from the stopping position, the opening of the multi-section sliding door can be flexibly adjusted by setting the extension and retraction range, so as to ensure that passengers can get on or off the train smoothly, to minimize the range which a screen door protection system cannot protect, and to ensure the safety of the passengers when the passengers get on or off the train as much as possible.

In order to realize functions of flow regulation, check and leakage resistance, and reduce cost expenditure and maintenance cost of user equipment and mounting space required by a valve as much as possible, the invention provides an adjustable check valve. The adjustable check valve comprises a valve seat, a valve body, valve clacks, a rocker and a valve rod, wherein one end of the rocker is hinged to the valve rod. The improvement of the adjustable check valve is characterized by also comprising a worm wheel head and a guide rail; the worm wheel head is connected with one end of the valve rod; the surfaces opposite to the sealing surfaces of the valve clacks are defined as the back surfaces of the valve clacks; the guide rail is fixedly connected to the back surfaces of the valve clacks;an arc-shaped long hole is formed in the guide rail; the radian of the arc-shaped long hole uses an axis of the valve rod as the center; the other end of the rocker is connected with the guide rail; and the rocker can move along the arc-shaped long hole. According to the adjustable check valve disclosed by the invention, based on a conventional check valve structure, the guide rail is additionallyarranged on the backs of the valve clacks, so that the guide rail is movably connected with the rocker; besides, the worm wheel head is also additionally arranged at the end of the valve rod, and thevalve rod and the rocker can also be driven by the rotating worm wheel head to move, so that the opening degree of the valve can be flexibly adjusted, and control of the flow of the pipeline is realized.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated caliber. The integrated caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the caliper heads are rotatably arranged at the end portions of the clamping sections through control screws respectively; the two sides of the back end of each caliper head are respectively provided with a limit lug for limiting the caliper head from tilting inwardly and outwardly to an extreme position; and the front end of each caliper head is in a wedge shape.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated multifunctional caliber. The multifunctional caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the caliper heads are rotatably arranged at the end portions of the clamping sections through control screws respectively; the two sides of the back end of each caliper head are respectively provided with a limit lug for limiting the caliper head from tilting inward and outward to an extreme position; and the front end of each caliper head is in a cone shape.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated caliber. The integrated caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the caliper heads are rotatably arranged at the end portions of the clamping sections respectively through control screws; the two sides of the back end of each caliper head are respectively provided with a limit lug for limiting the caliper head from tilting inwardly and outwardly to an extreme position; and when the caliper heads tilt inwardly or outwardly to the extreme position, the included angle between the axis of the caliper head and the axis of the clamping section is 12 degrees and 25 degrees.

The invention provides an integrated multifunctional caliber. The multifunctional caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the caliper heads are rotatably arranged at the end portions of the clamping sections respectively; the two sides of the back end of each caliper head are respectively provided with a limit lug for limiting the caliper head from tilting inwardly and outwardly to an extreme position; and the reading device comprises a bent ruler provided with a circular arc-shaped kidney-shaped hole, and two guide columns movably arranged in the kidney-shaped hole, wherein one guide column is connected with one caliper arm, and the two surfaces of the bent ruler are provided with scale marks corresponding to the length of the inner caliper and the length of the outer caliper respectively.

The invention relates to a measuring tool and provides a linear dimension measuring tool, and especially a multifunctional caliper which has two states of an inside caliper and an outside caliper. The multifunctional caliper includes a pair of caliper arms which are arranged symmetrically and are crosswise articulated through a rotational pin. One side of each caliper arm is a clamping segment and the other side is a reading segment, and the clamping segment and the reading segment are partitioned by the rotational pin. Caliper heads having adjustable included angles with the caliper arms in a plane defined by the pair of caliper arms are arranged at ends of the clamping segments. The two caliper heads with two tips are arranged symmetrically. When the caliper heads incline inwardly, the caliper is the inside caliper. When the caliper heads incline outwardly, the caliper is the outside caliper. A reading device used for reflecting the inside caliper length and the outside caliper length is also arranged at the reading segments. When the caliper heads incline inwardly or outwardly to limit positions, the included angles of a caliper head axis and a clamping segment axis are 12 degrees or 25 degrees. The reading device includes a spline in which arc waist-shaped holes are arranged, and two guide posts movably arranged in the waist-shaped holes. One guide post is connected to one caliper arm. Two surfaces of the spline are provided with graduation lines respectively corresponding to the external caliper length and the internal caliper length.

The invention relates to measuring tools, provides a linear dimension measuring tool, and particularly discloses calipers.The calipers have an inside caliper state and an outside caliper state and comprise a pair of clamp arms symmetrically arranged and hinged together in a crossing mode through a rotation pin, the side, close to the rotation pin, of each clamp arm is a clamping section, and the other side of each clamp arm is a reading section; a clamp head is arranged at the end of the clamping section of each clamp arm, the included angle between each clamp head and the corresponding clamp arm can be adjusted in the plane defined by the clamp arms, the two clamp heads with sharp front ends are symmetrically arranged, and the calipers are in the inside caliper state when the clamp head incline inwards and in the outside caliper state when the clamp heads incline outwards; a reading device used for reflecting inside caliper length and outside caliper length is further arranged on the reading section of each clamp arm; when the clamp head of each clamp arm inclines inwards to the extreme position, the included angle between the axis of the clamp head and the axis of the corresponding clamping section is 12 degrees; when the clamp head of each clamp arm inclines outwards to the extreme position, the included angle between the axis of the clamp head and the axis of the corresponding clamping section is 25 degrees; the front end of each clamp head is conical.

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated inner and outer caliper. The caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the clamping section is provided with a locking device for locking the pair of caliper arms in a certain included angle; and the front end of each caliper head is in a cone shape.

The invention relates to the field of rolling machines, in particular to a rolling machine air valve manual adjusting device. The rolling machine air valve manual adjusting device comprises a body, amoving plate arranged on the body in a sliding mode and a driving mechanism; and an air port is formed in the body, moreover, the air port is located in the sliding range of the moving plate, and themoving plate is connected to the driving mechanism. The rolling machine air valve manual adjusting device has the advantages that the driving mechanism drives the moving plate to slide in the body, the air port is located in the sliding range of the moving plate, then opening and closing of the air port are achieved, meanwhile, the air volume can be flexibly adjusted through the size of the area of the part, shielded by the moving plate, of the air port, for the rolling machine air valve manual adjusting device, the opening degree of the moving plate can be visually controlled, the adjusting process is reliable, moreover, the manual adjusting device can work in a high-temperature environment for a long time, and is more suitable for production requirements, the influence caused by wind system faults on production is greatly reduced, meanwhile, the leakage quantity of air can be well guaranteed, then the production requirements can be met, moreover, the structure is relatively simple, the installation is convenient, the cost is saved, and the production efficiency is improved.

The invention provides integrated multifunctional calipers. The calipers include an inside-calipers state and an outside-calipers state; the calipers comprise a pair of caliper arms, the two caliper arms are arranged symmetrically and are hinged to each other in an intersected manner via a rotational pin, the side, of the rotational pin, of each caliper arm includes a clamping segment, and the other side of the caliper arm includes a reading segment; the end portion of each clamping segment is provided with a clamping head, the included angle between the clamping head and the caliper arm in a plane defined by the pair of caliper arms can be adjusted, two clamping heads whose front ends include tips respectively are arranged symmetrically, when the clamping heads incline inwardly, the calipers serve as inside calipers, and when the clamping heads incline outwardly, the calipers serve as outside calipers; the reading segments are provided with a reading device which reflects the lengths of the inside calipers and the outside calipers; each clamping head is arranged in the end portion of the corresponding clamping segment rotationally, and the two sides of the rear end of the clamping head are provided with limiting bosses which limit the clamping head to incline inwardly/outwardly to a limit position; and the reading device is includes bevel gauges with arched kidney-shaped holes, two guide columns are arranged in each kidney-shaped hole movably, one guide column is connected with the corresponding caliper arm, and the two sides of each bevel gauge are provided with graduation lines corresponding to the lengths of the inside calipers and the outside calipers.

The technology relates to a measuring tool and provides a linear dimension measuring tool, and especially a direct reading multi-functional caliper having two states of an inside caliper and an outside caliper. The direct reading multi-functional caliper includes a pair of caliper arms which are arranged symmetrically and are crosswise articulated through a rotational pin. One side of each caliper arm is a clamping segment and the other side is a reading segment, and the clamping segment and the reading segment are partitioned by the rotational pin. Caliper heads having adjustable included angles with the caliper arms in a plane defined by the pair of caliper arms are arranged at ends of the clamping segments. The two caliper heads with two tips are arranged symmetrically. When the caliper heads incline inwardly, the caliper is the inside caliper. When the caliper heads incline outwardly, the caliper is the outside caliper. A reading device used for reflecting the inside caliper length and the outside caliper length is also arranged at the reading segments. A locking device used for locking the pair of caliper arms at a certain angle is arranged at the clamping segments. When the caliper heads incline inwardly to limit positions, an included angle of a caliper head axis and a clamping segment axis is 12 degrees. When the caliper heads incline outwardly to limit positions, an included angle of the caliper head axis and the clamping segment axis is 25 degrees.

The invention provides a linear size measuring tool, especially inside and outside integrated calipers, and belongs to measuring tools. The calipers include an inside-calipers state and an outside-calipers state; the calipers comprise a pair of caliper arms, the two caliper arms are arranged symmetrically and are hinged to each other in an intersected manner via a rotational pin, the side, of the rotational pin, of each caliper arm includes a clamping segment, and the other side of the caliper arm includes a reading segment; the end portion of each clamping segment is provided with a clamping head, the included angle between the clamping head and the caliper arm in a plane defined by the pair of caliper arms can be adjusted, two clamping heads whose front ends include tips respectively are arranged symmetrically, when the clamping heads incline inwardly, the calipers serve as inside calipers, and when the clamping heads incline outwardly, the calipers serve as outside calipers; the reading segments are provided with a reading device which reflects the lengths of the inside calipers and the outside calipers; the clamping segments are provided with a locking device which locks the pair of caliper arms in certain included angle; and the front ends of the clamping heads form a wedge shape.

The invention relates to a measuring tool, provides a linear dimension measuring tool, and particularly relates to integrated inside and outside calipers. The integrated inside and outside calipers have a state of inside calipers and a state of outside calipers and comprise a pair of caliper arms which are symmetrically arranged and hinged crosswise through a rotating pin, the portion, at one side of the rotating pin, of each caliper arm serves as a clamping section, and the portion, at the other side of the rotating pin, of each caliper arm serves as a reading section; the end of each clamping section is provided with a clamping head, wherein an included angle formed between the clamping head and the corresponding caliper arm can be adjusted in a plane determined by a pair of the caliper arms; the two clamping heads of which the front ends are sharp heads are symmetrically arranged, and the integrated inside and outside calipers serve as the inside calipers when the clamping heads are inclined inwards and serve as the outside calipers when the clamping heads are inclined outwards; the reading sections are provided with reading devices used for reflecting the length of the inside calipers and the length of the outside calipers; the clamping sections are further provided with locking devices used for locking a pair of the caliper arms at a certain included angle; each reading device comprises a zigzag rule which is provided with a circular-arc-shaped waist-shaped hole and two guiding columns which are movably arranged in the waist-shaped hole, each guiding column is connected with one caliper arm, and the two faces of each zigzag rule are provided with scale lines corresponding to the length of the outside calipers and the length of the inside calipers respectively.

The invention provides a linear size measuring tool, especially integrated calipers, and belongs to measuring tools. The calipers include an inside-calipers state and an outside-calipers state; the calipers comprise a pair of caliper arms, the two caliper arms are arranged symmetrically and are hinged to each other in an intersected manner via a rotational pin, the side, of the rotational pin, of each caliper arm includes a clamping segment, and the other side of the caliper arm includes a reading segment; the end portion of each clamping segment is provided with a clamping head, the included angle between the clamping head and the caliper arm in a plane defined by the pair of caliper arms can be adjusted, two clamping heads whose front ends include tips respectively are arranged symmetrically, when the clamping heads incline inwardly, the calipers serve as inside calipers, and when the clamping heads incline outwardly, the calipers serve as outside calipers; the reading segments are provided with a reading device which reflects the lengths of the inside calipers and the outside calipers; the clamping heads are rotationally arranged in the end portions of the clamping segments via control screws, the two sides of the rear end of each clamping head are provided with limiting bosses which limit the clamping head to incline inwardly/outwardly to a limit position; and the front ends of the clamping heads form a wedge shape.

The invention provides a linear size measuring tool, especially multifunctional calipers and belongs to measuring tools. The calipers include an inside-calipers state and an outside-calipers state; the calipers comprise a pair of caliper arms, the two caliper arms are arranged symmetrically and are hinged to each other in an intersected manner via a rotational pin, the side, of the rotational pin, of each caliper arm includes a clamping segment, and the other side of the caliper arm includes a reading segment; the end portion of each clamping segment is provided with a clamping head, the included angle between the clamping head and the caliper arm in a plane defined by the pair of caliper arms can be adjusted, two clamping heads whose front ends include tips respectively are arranged symmetrically, when the clamping heads incline inwardly, the calipers serve as inside calipers, and when the clamping heads incline outwardly, the calipers serve as outside calipers; the reading segments are provided with a reading device which reflects the lengths of the inside calipers and the outside calipers; when the clamping heads incline inwardly/outwardly to limit positions, the included angle between the axis of the clamping heads and the axis of the clamping segments is 12/25 degree; the rear end of the two reading segments are provided with grooves opposite to each other, and grooves are used to accommodate clamping pins of a vernier caliper.