Hoisting device

Abstract

The utility model belongs to the technical field of hoisting devices, and particularly relates to a hoisting device which comprises a base, a positioning groove is formed in the base, a through hole communicating with the positioning groove is formed in the top of the base, and a supporting rod is fixedly connected to the inner bottom wall of the positioning groove; through the arrangement of the positioning mechanism, when the device is used for hoisting a heavy object and rotating the hoisting angle, the hoisting plate is pressed and drives the positioning pipe to move downwards, so that the first gear is separated from the inner gear, the positioning ring applies pressure to the spring, and the positioning pipe can rotate at the moment; and the positioning ring resets and moves upwards to jack up the positioning pipe, so that the first gear is in contact with the inner gear, the first gear and the positioning pipe are rotated through the inner gear, namely, the rotation of the positioning pipe is positioned immediately while the heavy object is disconnected, and the situation that the positioning pipe rotates rapidly due to inertia, and potential safety hazards are caused to workers operating the hoisting device is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting devices, in particular to a hoisting device. Background Art

[0002] During the construction process, lifting equipment is generally required to lift building materials, which can not only speed up construction efficiency but also reduce physical labor of personnel. When the construction height is low, small cranes are generally used to lift building materials.

[0003] When the existing small crane is in use, the main shaft can rotate, and when the heavy object is hoisted, the connection between the crane and the heavy object is easily disconnected, and the disconnected crane and its connecting parts will continue to rotate due to inertia, which may easily cause injuries to workers. Therefore, a hoisting device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology and solve the problem that the main shaft of the existing small crane can rotate when in use, but the connection between the crane and the heavy object is easily disconnected when the heavy object is hoisted, and the disconnected crane and its connecting parts will continue to rotate due to inertia, which may easily cause injuries to the staff, a lifting device is proposed.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: the utility model is a hoisting device, comprising a base; a positioning groove is provided in the base, a through hole connected to the positioning groove is provided on the top of the base, a support rod is fixedly connected to the inner bottom wall of the positioning groove, and the top end of the support rod extends through the through hole and is connected to the outside;

[0006] A positioning mechanism is provided on the base, and the positioning mechanism includes a positioning ring slidably connected to the outer wall of the support rod, the bottom end of the positioning ring is elastically connected to the inner bottom wall of the positioning groove by a spring, the outer wall of the support rod is slidably connected to a positioning tube, the outer wall of the positioning tube is fixedly connected to a first gear, the inner side wall of the positioning groove is fixedly connected to an internal gear, the internal gear is meshingly connected to the first gear, a through hole extends from the top end of the positioning tube and is fixedly connected to a lifting plate, and through the setting of the positioning mechanism, the rotating positioning tube can be automatically positioned when the crane connecting piece is disconnected from the weight.

[0007] Preferably, a guide groove is provided on one side of the outer wall of the positioning tube, a guide block is slidably connected in the guide groove, one end of the guide block extends out of the guide groove and is fixedly connected to a fixing ring, and through the arrangement of the guide block and the fixing ring, the connecting parts and wire ropes of the crane can be positioned to reduce the possibility of shaking.

[0008] Preferably, a through groove connected to the positioning groove is formed on one side of the outer wall of the base, a toggle block is fixedly connected to one side of the outer wall of the positioning ring, one end of the toggle block extends out of the through groove and is fixedly connected to a blocking block, and by arranging the toggle block and the blocking block, the hoisting angle on the crane can be adjusted when the crane is installed.

[0009] Preferably, a sealing pad is provided on one side of the shielding block close to the base, and an anti-slip protrusion is provided on the bottom of the base. The sealing performance is improved by providing a sealing pad on one side of the shielding block close to the base, and the friction is improved by providing an anti-slip protrusion on the bottom of the base.

[0010] Preferably, the positioning tube is fixedly connected to a limiting ring on the outer wall of the positioning groove, and a buffer pad is provided on the top of the limiting ring. The limiting ring can prevent the positioning tube from detaching from the support rod during the moving process of the device.

[0011] Preferably, the top of the base is rotatably connected to a transmission ring, the outer wall of the transmission ring is fixedly connected to a second gear, a motor is provided on the top of the base, the output end of the motor is fixedly connected to a third gear, the third gear is meshingly connected to the second gear, and the positioning tube can be driven to rotate through the cooperation of the transmission ring, the second gear and the third gear without being affected by the positioning tube moving up and down.

[0012] Preferably, a limiting plate is fixedly connected to one side of the outer wall of the base, and an anti-slip protrusion is provided at the bottom of the limiting plate. Through the setting of the limiting plate, auxiliary support is provided to the entire device to avoid center of gravity shift.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a lifting device. Through the setting of the positioning mechanism, when the device is used to lift heavy objects and rotate the lifting angle, the lifting plate is compressed and drives the positioning tube to move downward, so that the first gear is out of contact with the internal gear. At this time, the positioning tube can rotate. If the connection between the crane and the heavy object is disconnected, under the pressure of the spring, the positioning ring is reset and moved upward to lift the positioning tube, so that the first gear is in contact with the internal gear, and the first gear and the positioning tube are rotated through the internal gear, that is, the rotation of the positioning tube is immediately positioned while disconnecting from the heavy object, so as to avoid the positioning tube from rotating rapidly due to inertia, which may cause safety hazards to the staff operating the lifting device.

[0015] 2. The utility model provides a hoisting device, which can position the connecting parts and wire ropes of the crane by setting the guide block and the fixed ring to reduce the possibility of shaking. By setting the toggle block and the shielding block, the hoisting angle on the crane can be adjusted when the crane is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the base in the utility model;

[0019] Figure 3 It is one of the cross-sectional structural diagrams of the base in the utility model;

[0020] Figure 4 This is the second cross-sectional structural diagram of the base in the utility model.

[0021] Legend:

[0022] 1. Base; 2. Positioning groove; 3. Support rod; 4. Positioning mechanism; 41. Positioning ring; 42. Spring; 43. Positioning tube; 44. Internal gear; 45. First gear; 5. Guide block; 6. Fixed ring; 7. Block block; 8. Toggle block; 9. Second gear; 10. Third gear; 11. Limit plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Specific examples are given below.

[0025] See also Figure 1-Figure 4 The utility model provides a lifting device, including a base 1; a positioning groove 2 is provided in the base 1, a through hole connected to the positioning groove 2 is provided on the top of the base 1, a support rod 3 is fixedly connected to the inner bottom wall of the positioning groove 2, and the top end of the support rod 3 extends through the through hole and is connected to the outside;

[0026] A positioning mechanism 4 is provided on the base 1, and the positioning mechanism 4 includes a positioning ring 41 slidably connected to the outer wall of the support rod 3, the bottom end of the positioning ring 41 is elastically connected to the inner bottom wall of the positioning groove 2 through a spring 42, the outer wall of the support rod 3 is slidably connected to a positioning tube 43, the outer wall of the positioning tube 43 is fixedly connected to a first gear 45, the inner side wall of the positioning groove 2 is fixedly connected to an internal gear 44, the internal gear 44 is meshed with the first gear 45, and the top end of the positioning tube 43 extends out of a through hole and is fixedly connected to a hanging plate; when working, a hoist is installed on the top of the hanging plate, and through the setting of the positioning mechanism 4, when using this device to carry heavy objects When hoisting and rotating the hoisting angle, the hoisting plate is compressed and drives the positioning tube 43 to move downward, so that the first gear 45 is out of contact with the internal gear 44. At this time, the positioning tube 43 can rotate. If the connection between the crane and the weight is disconnected, under the pressure of the spring 42, the positioning ring 41 is reset and moves upward to lift the positioning tube 43, so that the first gear 45 is in contact with the internal gear 44, and the first gear 45 and the positioning tube 43 are rotated through the internal gear 44, that is, the rotation of the positioning tube 43 is immediately positioned while disconnecting from the weight, so as to avoid the positioning tube 43 from rotating rapidly due to inertia, which may cause safety hazards to the staff operating the hoisting device.

[0027] Further, such as Figure 1 and Figure 2 As shown, a guide groove is provided on one side of the outer wall of the positioning tube 43, a guide block 5 is slidably connected in the guide groove, and one end of the guide block 5 extends out of the guide groove and is fixedly connected to a fixing ring 6. During operation, the connecting parts and wire ropes of the crane can be positioned by setting the guide block 5 and the fixing ring 6 to reduce the possibility of shaking.

[0028] Further, such as Figure 3 and Figure 4 As shown, a through slot connected to the positioning slot 2 is provided on one side of the outer wall of the base 1, a toggle block 8 is fixedly connected to one side of the outer wall of the positioning ring 41, and one end of the toggle block 8 extends out of the through slot and is fixedly connected to a blocking block 7. During operation, the hoisting angle on the crane can be adjusted when the crane is installed by setting the toggle block 8 and the blocking block 7.

[0029] Further, such as Figure 1 and Figure 3 As shown, a sealing pad is provided on one side of the shielding block 7 close to the base 1, and an anti-skid protrusion is provided on the bottom of the base 1. During operation, the sealing pad is provided on one side of the shielding block 7 close to the base 1 to improve the sealing performance, and the anti-skid protrusion is provided on the bottom of the base 1 to improve the friction.

[0030] Further, such as Figure 3As shown, the positioning tube 43 is fixedly connected to a limiting ring on the outer wall of the positioning groove 2, and a buffer pad is arranged on the top of the limiting ring. During operation, the limiting ring is arranged to prevent the positioning tube 43 from being separated from the support rod 3 during the moving process of the device.

[0031] Further, such as Figure 1 and Figure 3 As shown, the top of the base 1 is rotatably connected with a transmission ring, the outer wall of the transmission ring is fixedly connected with a second gear 9, the top of the base 1 is provided with a motor, the motor is connected to the base 1 through a motor mounting seat in the prior art, and a protective shell is provided on the outside of the base and sleeved on the outside of the positioning tube 43, which is used to protect the motor, the third gear 10 and the second gear 9, and the output end of the motor is fixedly connected with the third gear 10, and the third gear 10 is meshed with the second gear 9. During operation, the positioning tube 43 can be driven to rotate through the cooperation of the transmission ring, the second gear 9 and the third gear 10, and is not affected by the positioning tube 43 moving up and down.

[0032] Further, such as Figure 1 As shown, a limit plate 11 is fixedly connected to one side of the outer wall of the base 1, and an anti-slip protrusion is arranged at the bottom of the limit plate 11. During operation, the limit plate 11 is arranged to provide auxiliary support for the entire device to avoid the center of gravity shifting.

[0033] Working principle: When using this device to hoist heavy objects and rotate the hoisting angle, the hoisting plate is compressed and drives the positioning tube 43 to move downward, so that the first gear 45 is out of contact with the internal gear 44. At this time, the positioning tube 43 can rotate. If the connection between the crane and the heavy object is disconnected, under the pressure of the spring 42, the positioning ring 41 is reset and moved upward to lift the positioning tube 43, so that the first gear 45 is in contact with the internal gear 44, and the first gear 45 and the positioning tube 43 are rotated through the internal gear 44, that is, the rotation of the positioning tube 43 is immediately positioned while disconnecting from the heavy object, so as to avoid the positioning tube 43 from rotating rapidly due to inertia, which may cause safety hazards to the staff operating the hoisting device.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A lifting device, characterized in that: The invention comprises a base (1); a positioning groove (2) is provided in the base (1); a through hole connected to the positioning groove (2) is provided on the top of the base (1); a support rod (3) is fixedly connected to the inner bottom wall of the positioning groove (2); the top end of the support rod (3) extends through the through hole and is connected to the outside; The base (1) is provided with a positioning mechanism (4), the positioning mechanism (4) comprising a positioning ring (41) slidably connected to the outer wall of the support rod (3), the bottom end of the positioning ring (41) is elastically connected to the inner bottom wall of the positioning groove (2) through a spring (42), the outer wall of the support rod (3) is slidably connected to a positioning tube (43), the outer wall of the positioning tube (43) is fixedly connected to a first gear (45), the inner wall of the positioning groove (2) is fixedly connected to an internal gear (44), the internal gear (44) is meshingly connected to the first gear (45), and the top end of the positioning tube (43) extends out of a through hole and is fixedly connected to a hanging plate.

2. A lifting device according to claim 1, characterized in that: A guide groove is provided on one side of the outer wall of the positioning tube (43), a guide block (5) is slidably connected in the guide groove, and one end of the guide block (5) extends out of the guide groove and is fixedly connected to a fixing ring (6).

3. A lifting device according to claim 2, characterized in that: A through slot communicating with the positioning slot (2) is provided on one side of the outer wall of the base (1); a toggle block (8) is fixedly connected to one side of the outer wall of the positioning ring (41); one end of the toggle block (8) extends out of the through slot and is fixedly connected to a shielding block (7).

4. A lifting device according to claim 3, characterized in that: A sealing pad is provided on a side of the shielding block (7) close to the base (1), and an anti-slip protrusion is provided on the bottom of the base (1).

5. A lifting device according to claim 4, characterized in that: The positioning tube (43) is fixedly connected to a limiting ring on the outer wall of the positioning groove (2), and a buffer pad is provided on the top of the limiting ring.

6. A lifting device according to claim 5, characterized in that: The top of the base (1) is rotatably connected to a transmission ring, the outer wall of the transmission ring is fixedly connected to a second gear (9), a motor is provided at the top of the base (1), the output end of the motor is fixedly connected to a third gear (10), and the third gear (10) is meshingly connected to the second gear (9).

7. A lifting device according to claim 6, characterized in that: A limiting plate (11) is fixedly connected to one side of the outer wall of the base (1), and an anti-slip protrusion is provided at the bottom of the limiting plate (11).

Images