129results about How to "Realize variable diameter clamping" patented technology

The invention provides a manpower-assisted handheld push-pull electromagnet variable-diameter branch-clamping orange ring peeling device, comprising a handle, a spring, a rotating shaft, a movable ring, a fixed ring and push-pull electromagnets, wherein the spring is a tension spring and is fixedly arranged on the handle; during operation, the spring arranged on the push-pull electromagnets fixes the movable ring on an orange branch to prevent the movable ring from rotating with a ring peeling knife; the handle is divided into two parts; the fixed ring is arranged on the handle, and two parts of the fixed ring are buckled together to form a whole ring; when the handle is opened and closed, the fixed ring is opened and closed with the handle; the fixed ring is provided with a groove; a roller wheel is inlaid in the groove and rolls in the groove; a link rod penetrates through a center hole of the roller wheel; the roller wheel performs circular movement; the link rod connects two orange ring peeling devices together; a ring peeling handle is fixed on the link rod, one end of the ring peeling handle is provided with a ring peeling knife, and the other end is provided with a link plate; and under manpower assistance, the ring peeling knife takes a fixed point between the handle and the link rod as the center of a circle and a distance from the fixed point to the point of the ring peeling knife as a radius to perform circular movement so as to perform ring peeling on oranges.

The invention provides a manual power-assisted hand-held push-and-pull electromagnet variable diameter branch clamping persimmon tree girdling device comprising a handle, a spring, a rotating shaft, a moving circle, a fixed circle, and push-and-pull electromagnets. The spring is fixedly installed on the handle, and the spring is an extension spring. When the girdling device works, the moving circle is fixed on a branch of a persimmon tree by springs disposed on the push-and-pull electromagnets to be prevented from rotating with a girdling knife. The handle is divided into two portions, the fixed circle is installed on the handle, two portions of the fixed circle are buckled to be a full circle, and the fixed circle is driven to open and close along with opening and closing of the handle. The fixed circle is provided with a groove, rollers are embedded into the groove and roll in the groove, a link rod passes through central holes of the rollers, and the rollers perform circular motion. Two persimmon tree girdling devices are connected by the link rod, a girdling handle is fixed on the link rod, one end of the girdling handle is provided with a girdling knife, and the other end of the girdling handle is provided with a link plate. Under the manual power assistance, the girdling knife performs circular motion, by using the fixed point of the handle and the link rod as the center of circle and using the distance from the fixed point to the point of the girdling knife as the radius, so as to perform girdling on the persimmon tree.

The invention provides an artificial assisting handheld push-pull electromagnet reducing branch clamping waxberry girdling device which comprises a handle, a spring, a rotary shaft, a dynamic circle, a fixed circle and a push-pull electromagnet. The spring is fixedly mounted on the handle, and the spring is a tension spring. During work, the dynamic circle is fixed to a branch of waxberries through the spring arranged on the push-pull electromagnet in order to prevent a girdling cutter from rotating, the handle is divided into two parts, the fixed circle is mounted on the handle, and two parts of the fixed circle are buckled together to form a complete circle. The handle is opened and closed, the fixed circle is opened and closed accordingly, a groove is formed in the fixed circle, a roller is embedded into the groove and rolls in the groove, a linkage rod penetrates through a center hole of the roller, and the roller does circular motion. Two waxberry girdling devices are connected together through the linkage rod, a girdling handle is fixed to the linkage rod, the girdling cutter is arranged at one end of the girdling handle, and a linkage plate is arranged at the other end of the girdling handle. Under artificial assistance, the girdling cutter does circular motion with a handle and the linkage rod fixed point as the circle center and with a cutter point from the fixed point to the girdling cutter as the radius to girdle the waxberries.

The invention provides a human-assisted and handheld type winter jujube girdling device capable of realizing diameter-variable branch clamping through pushing and pulling electromagnets. The winter jujube girdling device comprises a handle, a spring, a rotating shaft, a moving circle, a fixed circle and the pushing and pulling electromagnets, wherein the spring is a tension spring and fixedly mounted on the handle, and during operation, the spring arranged on the pulling electromagnet fixes the moving circle on a branch of a winter jujube so as to prevent the moving circle from rotaing along with a girdling cutter; the handle is divided into two parts, the fixed circle is mounted on the handle, two parts of the fixed circle are buckled to form a whole circle, and the fixed circle is opened and closed with opening and closing of the handle; slots are formed in the fixed circle and rollers are embedded into the slots and roll in the slots; a link rod penetrates through center holes in the rollers, the rollers conduct circular rotation, and the link rod connects two winter jujube girdling devices together; a girdling handle is fixed on the link rod, the girdling cutter is arranged at one end of the girdling handle, a link plate is arranged at the other end of the girdling handle, and the girdling cutter conducts circular motion with the fixing point of the handle and the link rod as a circle center and the distance from the fixing point to the cutter tip of the girdling cutter as a radius to girdle the winter jujube under human assistance.

The invention provides an artificial auxiliary handheld bergamot pear tree girdling device achieving variable-diameter branch clamping through push-pull electromagnets. The device comprises a handle, a spring, a rotating shaft, a movable circle, a fixed circle and the push-pull electromagnets; the spring is fixedly installed on the handle and is a tension spring, and when operation is conducted, the movable circle is fixed to a branch of a bergamot pear tree through springs arranged on the push-pull electromagnets to prevent the branch from rotating along with a girdling knife; the handle comprises two parts, the fixed circle is installed on the handle, two parts of the fixed circle are buckled together to form a completer circle, the fixed circle is opened and closed along with opening and closing of the handle, a groove is formed in the fixed circle, and a rolling wheel is embedded into the groove and rolls in the groove; a connecting rod penetrates through center holes of the rolling wheels, the rolling wheels do circular rotation, two bergamot pear tree girdling devices are connected together through the connecting rod, a girdling handle is fixed to the connecting rod, the girdling knife is arranged at one end of the girdling handle, a connecting plate is arranged at the other end of the girdling handle, and by means of artificial auxiliary, the girdling knife does circular motion by taking the handle and connecting rod fixing point as a circle center and taking the distance between the fixing point and the knife tip of the girdling knife as the radius to girdle the bergamot pear tree.

The invention provides a manually assisted hand-held spring plate variable diameter branch clamping electric persimmon tree ring peeling tool. The ring peeling tool comprises a handle, a spring, a rotating shaft, a spring plate, a setting circle and a micro direct-current motor; the spring which is a tension spring is fixedly installed on the handle, during operation, the spring plate is clamped on a branch of a persimmon tree so as to prevent rotation along with a ring peeling knife, the handle is divided into two parts, the setting circle is installed on the handle, two parts of the setting circle are buckled together to form a full circle, the handle is opened and closed, and the setting circle and the spring plate are opened and closed accordingly; a groove is formed in the setting circle, a rolling wheel is embedded into the groove and rolls in the groove, a link rod penetrates through a center hole of the rolling wheel, the rolling wheel rotates in a circle, the link rod connects two persimmon tree ring peeling tools together, a ring peeling handle is fixed to the link rod, the ring peeling knife is arranged at one end of the ring peeling handle, a link plate is arranged at the other end of the ring peeling handle, and under manual assistance, the ring peeling knife moves in a circle by taking the fixed point of the handle and the link rod as the circle center and taking the distance from the fixed point to a knifepoint of the ring peeling knife as the radius to conduct ring peeling on the persimmon tree.

The invention provides an artificial assistance handheld push-and-pull electromagnet variable-diameter branch clamping lychee tree girdling device. The girdling device comprises a handle, springs, a rotary shaft, a moving ring, a fixed ring and push-and-pull electromagnets. One spring is fixedly mounted on the handle, and a tension spring is used as the spring. During operating, the moving ring is fixed to a lychee tree branch by pulling the springs arranged on the electromagnets to prevent the moving ring from rotating along with a girdling knife. The handle is divided into two parts. The fixed ring is mounted on the handle. Two parts of the fixed ring are buckled together to form a full circle. The handle is opened and closed, and the fixed ring is opened and closed accordingly. The fixed ring is provided with grooves. Rolling wheels are embedded into the grooves and roll in the grooves. A link rod penetrates through center holes of the rolling wheels. The rolling wheels rotate circumferentially. The link rod connects two lychee tree girdling devices together. A girdling handle is fixed to the link rod. One end of the girdling handle is provided with the girdling knife. The other end of the girdling handle is provided with a yoke plate. Under artificial assistance, the girdling knife does circular movement to conduct girdling on a lychee tree with the fixed point of the handle and the link rod as the circle center and with the distance from the fixed point to the knife point of the girdling knife as the radius.

The invention provides a manpower-assisted handheld push-pull electromagnet variable-diameter branch-clamping pomelo tree ring peeling device, comprising a handle, a spring, a rotating shaft, a movable ring, a fixed ring and push-pull electromagnets, wherein the spring is a tension spring and is fixedly arranged on the handle; during operation, the spring arranged on the push-pull electromagnets fixes the movable ring on a pomelo tree branch to prevent the movable ring from rotating with a ring peeling knife; the handle is divided into two parts; the fixed ring is arranged on the handle, and two parts of the fixed ring are buckled together to form a whole ring; when the handle is opened and closed, the fixed ring is opened and closed with the handle; the fixed ring is provided with a groove; a roller wheel is inlaid in the groove and rolls in the groove; a link rod penetrates through a center hole of the roller wheel; the roller wheel performs circular movement; the link rod connects two pomelo tree ring peeling devices together; a ring peeling handle is fixed on the link rod, one end of the ring peeling handle is provided with a ring peeling knife, and the other end is provided with a link plate; and under manpower assistance, the ring peeling knife takes a fixed point between the handle and the link rod as the center of a circle and a distance from the fixed point to the point of the ring peeling knife as a radius to perform circular movement so as to perform ring peeling on pomelo trees.

The invention provides an artificial assistance handheld spring plate variable-diameter branch clamping electric orange tree girdling device. The girdling device comprises a handle, a spring, a rotary shaft, a spring plate, a fixed ring and a miniature DC motor. The spring is fixedly mounted on the handle. A tension spring is used as the spring. During operating, the spring plate is clamped onto an orange tree branch to be prevented from rotating along with a girdling knife. The handle is divided into two parts. The fixed ring is mounted on the handle. Two parts of the fixed ring are buckled together to form a full circle. When the handle is opened and closed, the fixed ring and the spring plate are also opened and closed accordingly. The fixed ring is provided with grooves. Rolling wheels are embedded into the grooves and roll in the grooves. A link rod penetrates through center holes of the rolling wheels. The rolling wheels rotate circumferentially. The link rod connects two orange tree girdling devices together. A girdling handle is fixed to the link rod. One end of the girdling handle is provided with the girdling knife. The other end of the girdling handle is provided with a yoke plate. Under artificial assistance, the girdling knife does circular movement to conduct girdling on an orange tree with the fixed point of the handle and the link rod as the circle center and with the distance from the fixed point to the knife point of the girdling knife as the radius.

The invention provides an electric bergamot pear girdling device capable of human-assistance hand-held spring plate reducing branch clamping. The device comprises a handle, a spring, a rotation shaft, a spring plate, a fixed circle and a micro direct current motor, wherein a spring is firmly installed on the handle, and the spring is a pull spring; during operations, the spring plate is clamped on a branch of a bergamot pear, so rotation along with a girdling cutter can be prevented; the handle is divided into two parts; a fixed circle is installed on the handle; two parts of the fixed circle are buckled into a whole circle; when the handle is opened or closed; the fixed circle and the spring plate will also be opened and closed under driving; a groove is disposed on the fixed circle; a roller is embedded into the groove and rolls in the groove; a linkage rod passes through a center hole of the roller; the roller conducts circular rotation; two bergamot pear girdling devices are connected by the linkage rod; a girdling handle is fixed on the linkage rod; a girdling cutter is disposed on one end of the girdling handle and the other end is equipped with a linkage plate; and under manual assistance, the girdling cutter makes circular motion with a fixation point of the handle and the linkage rod as the circle center and with the distance from the fixation point to the girdling cutter tip as the radius so as to conduct girdling of the bergamot pear.

The present invention provides a manually assisted hand-held ratchet ratchet ratchet variable diameter branch clamping persimmon tree girdler, including a handle, a spring, a rotating shaft, a moving circle, a fixed circle, a ratchet strip and a ratchet, and a spring is fixedly installed on the handle. The spring is a tension spring. During operation, the pawl and the ratchet mesh to fix the moving circle on the branch of the persimmon tree, so as not to rotate with the girdling knife. The handle is divided into two parts, the fixed circle is installed on the handle, and the two fixed circles The parts are buckled together to form a full circle, the handle opens and closes, and the fixed circle also opens and closes accordingly. There is a groove on the fixed circle, the roller is embedded in the groove and rolls in the groove, and the link runs through the roller The center hole of the center hole, the roller rotates in a circle, the connecting rod connects the two persimmon tree girdling devices together, the girdling handle is fixed on the connecting rod, one end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate, Under the manual assistance, the girdling knife takes the fixed point of the handle and the connecting rod as the center of the circle, and takes the fixed point to the tip of the girdling knife as the radius to make a circular motion to gird the persimmon tree.

The invention provides a manually assisted hand-held electric lychee girdler with variable diameter branches clamped by a spring plate, including a handle, a spring, a rotating shaft, a spring plate, a fixed circle and a micro DC motor, and a spring is fixedly installed on the handle, and the spring is an extension spring , during operation, the spring plate is clamped on the lychee branch to prevent it from rotating with the girdling knife. The handle is divided into two parts, and the fixed circle is installed on the handle. The two parts of the fixed circle are buckled together to form a complete circle. The handle Opening and closing, the fixed circle and the spring plate also open and close accordingly. There is a groove on the fixed circle, and the roller is embedded in the groove and rolls in the groove. The link passes through the center hole of the roller, and the roller rotates in a circle. , the connecting rod connects the two litchi girders together, the girdling handle is fixed on the connecting rod, one end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate. The fixed point of the handle and the connecting rod is the center of the circle, and the radius of the fixed point to the tip of the girdling knife is used as a circular motion to girdling the lychees.

The invention provides a manually-assisted electric handheld spring plate variable-diameter waxberry branch clamping type girdling device. The girdling device comprises a handle, a spring, a rotating shaft, spring plates, a setting circle and a miniature direct-current motor. The spring which is a tension spring is fixedly mounted on the handle, the spring plates clamp a waxberry branch in operation to avoid rotation along with a girdling knife, the setting circle is mounted on the handle which comprises two portions, two portions of the setting circle are closed to form a full circle, and the setting circle and the spring plates are open and closed along with opening and closing of the handle. The setting circle is provided with grooves, rollers are embedded into the grooves and roll in the grooves, and a link rod penetrates center holes of the rollers which are in circular rotation. Two girdling devices can be connected by the link rod, the girdling knife is arranged at one end of a girdling handle which is fixed to the link rod, and a link plate is arranged at the other end of the girdling handle. Under manual assistance, the girdling knife moves circularly to realize waxberry branch girdling by taking a fixed point of the handle and the link rod as a circle center and taking a distance from the fixed point to the tip of the girdling knife as a radius.

The invention provides an artificial auxiliary handheld power-driven pomelo tree girdling machine capable of clamping a branch in a variable-diameter manner by using spring plates. The machine comprises a handle, a spring, a rotation shaft, the spring plates, a fixed ring and a miniature direct current motor, wherein the spring which is a tension spring is fixedly installed on the handle; when in operation, the spring plates clamp a branch of a pomelo tree to be prevented from rotating along with a girdling knife; the handle is divided into two parts; the fixed ring is installed on the handle; two parts of the fixed ring are buckled to form a whole ring; the fixed ring and the spring plates are opened and closed along with the opening and closing of the handle; a groove is arranged on the fixed ring; an idler wheel is embedded into the groove and rolls in the same; a link rod penetrates through the center hole of the idler wheel; the idler wheel rotates circumferentially; the two pomelo tree girdling machines are connected together by the link rod; a girdling handle is fixed on the link rod; the girdling knife is arranged at one end of the girdling handle while a link plate is arranged on the other end; and under artificial auxiliary, the girdling knife rotates circumferentially by taking the fixed point of the handle and the link rod as a circle center and the distance between the fixed point and the knife point of the girdling knife as a radius to girdle the pomelo tree.

The invention provides a manually-assisted handheld ratchet-pawl variable-diameter branch clamping litchi girdling device. The litchi girdling device comprises a handle, springs, a rotating shaft, a movable circle, a fixed circle, a ratchet and a pawl, wherein a spring is fixedly mounted on the handle; the spring is a tension spring; the pawl is meshed with the ratchet so as to fix the movable circle on a litchi branch and prevent the movable circle from rotating along with a girdling cutter during operation; the handle is divided into two parts; the fixed circle is mounted on the handle; two parts of the fixed circle are fastened together to form an integral circle; the handle is opened and closed, and the fixed circle is also opened and closed along with the handle; grooves are formed in the fixed circle; rollers are embedded into the grooves and roll in the grooves; a connection rod passes through center holes of the rollers; the rollers do circumferential rotation; two litchi girdling devices are connected together through the connection rod; a girdling handle is fixed on the connection rod; the girdling cutter is arranged at one end of the girdling handle; a connection plate is arranged at the other end of the girdling handle; the girdling cutter is capable of girdling the litchis through circumferential movement by taking a fixing point between the handle and the connection rod as a circle center and taking a distance from the fixing point to the cutter tip of the girdling cutter as radius under the driving of manual assistance.

The invention provides a manually assisted hand-held spring plate variable diameter branch clamping electric longan ring peeling tool. The ring peeling tool comprises a handle, a spring, a rotating shaft, a spring plate, a setting circle and a micro direct-current motor; the spring which is a tension spring is fixedly installed on the handle, during operation, the spring plate is clamped on a branch of longan so as to prevent rotation along with a ring peeling knife, the handle is divided into two parts, the setting circle is installed on the handle, two parts of the setting circle are buckled together to form a full circle, the handle is opened and closed, and the setting circle and the spring plate are opened and closed accordingly; a groove is formed in the setting circle, a rolling wheel is embedded into the groove and rolls in the groove, a link rod penetrates through a center hole of the rolling wheel, the rolling wheel rotates in a circle, the link rod connects two longan ring peeling tools together, a ring peeling handle is fixed to the link rod, the ring peeling knife is arranged at one end of the ring peeling handle, a link plate is arranged at the other end of the ring peeling handle, and under manual assistance, the ring peeling knife moves in a circle by taking the fixed point of the handle and the link rod as the circle center and taking the distance from the fixed point to a knifepoint of the ring peeling knife as the radius to conduct ring peeling on the longan.

The invention provides an manual assistance hand-held ratchet strip ratchet pawl variable-diameter branch clamping electric girdling device for longans. The manual assistance hand-held ratchet strip ratchet pawl variable-diameter branch clamping electric girdling device for the longans comprises a handle, a spring, a rotating shaft, a movable circle, a setting circle, a ratchet strip and a ratchet pawl. The spring is fixedly installed on the handle and is a tension spring, during the operation, the ratchet strip and the ratchet pawl are engaged to fix the movable circle on branches of the longans to prevent the movable circle from rotating with a girdling knife, the handle is divided into two parts, the setting circle is installed on the handle, two parts of the setting circle are buckled together into a whole circle, when the handle is opened and closed, the setting circle is opened and closed in a follow-up mode, a groove is formed in the setting circle, a roller is embedded in the groove and rolls in the groove, a link rod runs through a center hole of the roller, the roller rotates in circles, the link rod connects two longan tree girdling devices, a girdling handle is fixed on the link rod, one end of the girdling handle is provided with the girdling knife, and the other end is provided with a link plate. Under the manual assistance, the girdling knife make a circular motion to girdle the longans, with the fixing point of the handle and the link rod as the center of the circle and the distance between the fixing point and the knife point of the girdling knife as the radius.

The present invention provides a hand-held electric pomelo tree girdling device with hand-held ratchets and pawls with variable diameters, including a handle, a spring, a rotating shaft, a moving circle, a fixed circle, a ratchet, a pawl and a miniature DC motor, which are fixed on the handle. The spring is installed, the spring is a tension spring, the pawl and the ratchet are engaged to fix the moving circle on the branch of the pomelo tree, so as not to rotate with the girdling knife, the handle is divided into two parts, the fixed circle is installed on the handle, and the two fixed circles The parts are fastened together to form a complete circle, the handle opens and closes, and the fixed circle also opens and closes accordingly. There is a groove on the fixed circle, the roller is embedded in the groove and rolls in the groove, and the link runs through the roller The center hole of the center hole, the roller rotates in a circle, the connecting rod connects the two pomelo girders together, the girdling handle is fixed on the connecting rod, one end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate, Driven by the power, the girdling knife takes the fixed point of the handle and the connecting rod as the center of the circle, and takes the fixed point to the tip of the girdling knife as the radius to make a circular motion to girdling the pomelo tree.

The present invention provides a manually assisted hand-held electric pear girdler for variable-diameter branch clamping, including a handle, a spring, a rotating shaft, a clamping block, a fixed circle and a micro DC motor, and a spring is fixedly installed on the handle. During operation, The force of the spring fixes the clamping block on the branch of the fragrant pear to prevent it from rotating with the girdling knife. The handle is divided into two parts, the fixed circle is installed on the handle, and the two parts of the fixed circle are buckled together to form a complete circle , the handle opens and closes, and the fixed circle also opens and closes accordingly. There is a groove on the fixed circle, and the roller is embedded in the groove and rolls in the groove. The link passes through the center hole of the roller, and the roller rotates in a circle. The connecting rod connects the two fragrant pear girders together, and the girdling handle is fixed on the connecting rod. One end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate. Driven by power, the girdling knife Take the fixed point of the handle and the connecting rod as the center of the circle, and use the fixed point to the tip of the girdling knife as the radius to make a circular motion to girdling the fragrant pears.

The invention provides a hand-held pomelo tree girdler for clamping variable-diameter branches, which includes a handle, a spring, a rotating shaft, a clamping block, and a fixed circle. A spring is fixedly installed on the handle, and the spring is a tension spring. At the same time, the force of the spring will firmly fix the clamping block on the pomelo branch to prevent the ringing knife from rotating. The handle is divided into two parts, the fixed circle is installed on the handle, and the two parts of the fixed circle are fastened on the handle. Together they form a full circle, the handle opens and closes, and the fixed circle also opens and closes accordingly. There is a groove on the fixed circle, the roller is embedded in the groove and rolls in the groove, and the link passes through the center hole of the roller. The roller rotates in a circle in the groove, the connecting rod connects the two pomelo girders together, the girdling handle is fixed on the connecting rod, one end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate, Under the artificial assistance, the girdling knife takes the fixed point of the handle and the connecting rod as the center of the circle, and takes the fixed point to the tip of the girdling knife as the radius to make a circular motion to girdling the pomelo tree.

The invention provides a manpower-assisted handheld ratchet-and-pawl variable-diameter branch-clamping electric winter jujube ring peeling device, comprising a handle, a spring, a rotating shaft, a movable ring, a fixed ring, a ratchet, a pawl and a direct-current micromotor, wherein the spring is a tension spring and is fixedly arranged on the handle; the pawl and the ratchet are meshed to fix the movable ring on a winter jujube branch to prevent the movable ring from rotating with a ring peeling knife; the handle is divided into two parts; the fixed ring is arranged on the handle, and two parts of the fixed ring are buckled together to form a whole ring; when the handle is opened and closed, the fixed ring is opened and closed with the handle; the fixed ring is provided with a groove; a roller wheel is inlaid in the groove and rolls in the groove; a link rod penetrates through a center hole of the roller wheel; the roller wheel performs circular movement; the link rod connects two winter jujube ring peeling devices together; a ring peeling handle is fixed on the link rod, one end of the ring peeling handle is provided with a ring peeling knife, and the other end is provided with a link plate; and under driving of power, the ring peeling knife takes a fixed point between the handle and the link rod as the center of a circle and a distance from the fixed point to the point of the ring peeling knife as a radius to perform circular movement so as to perform ring peeling on winter jujubes.

The invention provides a manpower-assisted handheld electric pomelo tree girdling device for clamping branches with different diameters. The device comprises hand grips, a spring, a rotary shaft, clamping blocks, a steady circle and a direct current micro-motor. The spring is fixedly arranged on the hand grips, during the work, the acting force of the spring makes the clamping blocks firmly fixed to a branch of a pomelo tree so as to prevent the branch from rotating along with a girdling knife, the hand grips are divided into two parts, the steady circle installed on the hand grips, the two parts of the steady circle are buckled together to form a whole circle, and the steady circle is opened and closed along with the opening and closing of the hand grips. Grooves are formed in the steady circle, idler wheels are embedded into the grooves and rotate in the grooves, a link bar penetrates through center holes of the idler wheels and the idler wheels do circular movement. Two pomelo tree girdling devices are connected together through the link bar, a girdling handle is fixed to the link bar, one end of the girdling handle is provided with the girdling knife, and the other end of the girdling handle is provided with a link plate. Under the manpower assistance, the girdling knife does circular movement with the fixed point of the hand grips and the link bar as the center and the distance from the fixed point to the point of the girdling knife as the radius so as to conduct girdling on the pomelo tree.

The invention provides an artificial auxiliary handheld electric persimmon tree girdling device for clamping a variable-diameter branch. The artificial auxiliary handheld electric persimmon tree girdling device for clamping the variable-diameter branch comprises a handle, a spring, a rotation shaft, a clamping block, a fixed circle and a minitype direct current motor. The handle is fixedly provided with the spring. In the operation process, the clamping block is fixed on the branch of the persimmon tree by the acting force of the spring, and is prevented to be rotated along with a girdling blade. The handle is divided to two parts. The fixed circle is installed on the handle. Two parts of the fixed circle are closed to form a whole circle. The fixed circle is opened and closed along with the open and close of the handle. The fixed circle is provided with a groove. A roller is embedded in the groove and is rolled in the groove. A linkage rod passes through the central hole of the roller. The roller is rotated around the circumference. Two persimmon tree girdling devices are connected by the linkage rod. A girdling handle is fixed on the linkage rod. One end of the girdling handle is provided with the girdling blade, and the other end is provided with a linkage plate. Under the drive of the power, the girdling blade is circumferentially moved by using the fixed point of the handle and the linkage rod as the center, and using the distance from the fixed point to the point of the girdling blade as the radius, for girdling the persimmon tree.

The invention provides a manually assisted hand-held electric winter jujube girdler for clamping branches with variable diameters, including a handle, a spring, a rotating shaft, a clamping block, a fixed circle and a micro DC motor, and a spring is fixedly installed on the handle. During operation, the spring The force will fix the clamping block on the branch of Dongzao to prevent it from rotating with the ringing knife. The handle is divided into two parts. The fixed circle is installed on the handle. The two parts of the fixed circle are buckled together to form a complete circle. The handle When it opens and closes, the fixed circle also opens and closes accordingly. There is a groove on the fixed circle, and the roller is embedded in the groove and rolls in the groove. The link passes through the center hole of the roller, and the roller rotates in a circle. Connect two winter jujube girdling devices together, the girdling handle is fixed on the connecting rod, one end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate, driven by power, the girdling knife is connected with the handle and The fixed point of the connecting rod is the center of the circle, and the radius of the knife tip from the fixed point to the girdling knife is used as a circular motion to girdling the winter jujube.