Transmission screw fixing device of screw hoist

Abstract

The utility model relates to the technical field of screw hoists, and provides a transmission screw fixing device of a screw hoist, which comprises a hoist body, a driving screw is rotatably connected in the hoist body, a transmission screw is rotatably connected in the hoist body, and a fixing device is arranged in the hoist body. The fixing device comprises a motor, and the side face of the motor is fixedly connected to the side face of the hoist body. Through mutual cooperation of the motor, the two-way threaded rod, the first threaded sleeve, the first connecting frame, the first fixing plate, the second threaded sleeve and other components in the fixing device, when the motor is started, the two-way threaded rod rotates, and the two-way threaded rod rotates; and when the bidirectional threaded rod rotates, the first threaded sleeve and the second threaded sleeve move left and right, and when the first threaded sleeve and the second threaded sleeve move, the first fixing plate and the second fixing plate fix the transmission screw rod, so that the fixing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw hoists, and in particular to a transmission screw fixing device of a screw hoist. Background Art

[0002] Gate hoists are used in various large-scale water supply and drainage, water conservancy and hydropower projects. They are used to control the lifting and lowering of various large and medium-sized cast iron gates and steel gates to achieve the purpose of opening and closing. They can be divided into hydraulic gate hoists, winch gate hoists, door machines, handwheel gate hoists, hand-cranked gate hoists, screw-type gate hoists, etc. The screw-type gate hoist has a simple structure, is sturdy and durable, and has a low cost. It is suitable for small flat gates and radial gates, and its opening and closing force is generally below 200KN.

[0003] According to the disclosed screw protection device for a screw gate hoist (publication number: CN 109098151 A), it includes an end cover, a telescopic rod, a mounting plate, a wire brush, a baffle and a rotating shaft. The end cover is mounted on the front end surface of the base through a spring hinge, the telescopic rod is fixed to the lower side of the rear end surface of the end cover, the mounting plate is fixed to the rear end of the telescopic rod, the wire brush is mounted on the rear end surface of the mounting plate and the wire brush is in contact with the annular side surface of the screw, the rotating shaft is mounted on the upper side of the front end surface of the end cover and the rear end of the rotating shaft passes through the end cover and is connected to the baffle, and the baffle is arranged behind the end cover. This design solves the problem that the original screw protection device for the screw gate hoist lacks the function of convenient screw cleaning. The screw below the base is exposed to the environment and is prone to accumulate fine impurities in the thread, and manual removal is time-consuming and labor-intensive. The utility model has the function of hiding and cleaning impurities, has fewer operating steps, occupies less space, and is easy to replace.

[0004] In the above application, the transmission screw cannot be reinforced by the mutual cooperation between the baffle and the shaft assembly, which can easily cause the transmission screw to deviate during long-term use, affecting work efficiency and causing economic losses, and the effect is not ideal. Utility Model Content

[0005] The utility model provides a transmission screw fixing device for a screw hoist, which solves the problems raised in the above documents.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model is a transmission screw fixing device of a screw hoist, comprising a hoist body, an active screw being rotatably connected inside the hoist body, a transmission screw being rotatably connected inside the hoist body, and a fixing device being arranged inside the hoist body;

[0008] The fixing device includes a motor, the side of the motor is fixedly connected to the side of the gate opening and closing machine body, a bidirectional threaded rod is fixedly connected to the output shaft of the motor, a first threaded sleeve is threadedly connected to the circumferential surface of the bidirectional threaded rod, a first connecting frame is fixedly connected to the circumferential surface of the first threaded sleeve, a first fixing plate is fixedly connected to the side of the first connecting frame, a second threaded sleeve is threadedly connected to the circumferential surface of the bidirectional threaded rod, a second connecting frame is fixedly connected to the circumferential surface of the second threaded sleeve, and a second fixing plate is fixedly connected to the side of the second connecting frame.

[0009] Furthermore, the internal rotation of the gate operating machine body is connected to a first limiting rod, and the internal rotation of the gate operating machine body is connected to a second limiting rod. This design is conducive to limiting the first threaded sleeve and the second threaded sleeve through the first limiting rod and the second limiting rod.

[0010] Furthermore, a cover plate is fixedly connected to the top of the gate hoist body, a screw is fixed to the internal thread of the gate hoist body, and the bottom of the screw is fixedly connected to the top of the cover plate. This design is conducive to fixing the cover plate by screws.

[0011] Furthermore, an observation port is provided on the side of the gate hoist body, and an observation plate is fixedly connected to the inner wall of the observation port. This design is conducive to observing whether the interior of the gate hoist is damaged through the observation port.

[0012] Furthermore, the number of the screws is set to four, and they are arranged in a circular array on the top of the cover plate, and the material of the observation plate is set to glass. This design is conducive to the use of multiple screws to achieve better fixing effects.

[0013] Furthermore, a cleaning device is provided on the side of the gate operating machine body, and the cleaning device includes a threaded rod, the circumferential surface of the threaded rod is rotatably connected to the inside of the gate operating machine body, a first belt groove is provided on the circumferential surface of the bidirectional threaded rod, and a second belt groove is provided on the circumferential surface of the threaded rod, a belt is connected to the circumferential surface of the first belt groove for transmission, and the inner side surface of the belt is on the circumferential surface of the second belt groove, and a third threaded sleeve is threadedly connected to the circumferential surface of the threaded rod, a brush plate is fixedly connected to the circumferential surface of the third threaded sleeve, and a brush strip is fixedly connected to the side of the brush plate, and the third limit rod is rotatably connected to the inside of the gate operating machine body, and a collection box is fixedly connected to the side of the gate operating machine body. This design is conducive to the transmission of the belt, so that the bidirectional threaded rod drives the threaded rod to rotate when it rotates, so that the brush strip on the brush plate cleans the observation plate.

[0014] Furthermore, the inner wall of the gate opening and closing machine body is fixedly connected to a limiting frame, a limiting groove is provided on the side of the limiting groove, a collision block is slidably connected to the inner wall of the limiting groove, and a collision shaft is fixedly connected to the side of the collision block. This design is conducive to limiting the collision block by the limiting frame.

[0015] Furthermore, a sound is fixedly connected to the side of the gate opening and closing machine body, and a trigger button is provided on the side of the sound. This design is conducive to causing the sound to sound an alarm by touching the trigger button.

[0016] Furthermore, a spring hole is provided on the inner wall of the gate opening body, a spring is fixedly connected to the inner wall of the spring hole, and one end of the spring away from the spring hole is fixedly connected to the side of the collision block. This design is conducive to resetting the collision block by the spring.

[0017] Furthermore, the waste liquid tank is located below the waste liquid port, the trigger button is located on the displacement track of the collision shaft, and the side of the collision block is elastically connected to the inner wall of the spring hole through a spring. This design is conducive to the collision of the collision block through the transmission screw, so that the collision shaft on the collision block collides with the trigger button, causing the sound to sound an alarm.

[0018] The working principle and beneficial effects of the utility model are as follows:

[0019] 1. In the utility model, through the mutual cooperation between the components such as the motor, the bidirectional threaded rod, the first threaded sleeve, the first connecting frame, the first fixing plate and the second threaded sleeve inside the fixing device, it is achieved that when the motor is started, the bidirectional threaded rod rotates, and when the bidirectional threaded rod rotates, the first threaded sleeve and the second threaded sleeve move left and right. When the first threaded sleeve and the second threaded sleeve move, the first fixing plate and the second fixing plate fix the transmission screw, thereby achieving a fixing effect.

[0020] 2. In the utility model, through the mutual cooperation between the threaded rod, belt, brush plate, brush strip and collection box components inside the cleaning device, it is achieved that when the motor is started, the bidirectional threaded rod rotates, and the belt is used to drive the bidirectional threaded rod to rotate. When the threaded rod rotates, the third threaded sleeve moves left and right, causing the brush plate to move left and right. When the brush plate moves, the brush strip cleans the observation plate, and the swept dust falls into the collection box, achieving a cleaning effect while collecting dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 This is a schematic diagram of the structure of the three-dimensional appearance of the utility model;

[0023] Figure 2This is a schematic diagram of the structure of the utility model from a second viewing angle three-dimensional cross-section;

[0024] Figure 3 This is a schematic diagram of the three-dimensional cross-section of the cleaning device of the present invention;

[0025] Figure 4 For this utility model Figure 2 Schematic diagram of the three-dimensional enlarged structure of A in the middle;

[0026] Figure 5 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of B in the middle;

[0027] Figure 6 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of C in the middle.

[0028] In the figure: 1. Gate hoist body; 2. Active screw; 3. Transmission screw; 4. Fixing device; 41. Motor; 42. Bidirectional threaded rod; 43. First threaded sleeve; 44. First connecting frame; 45. First fixing plate; 46. Second threaded sleeve; 47. Second connecting frame; 48. Second fixing plate; 49. First limiting rod; 410. Second limiting rod; 411. Cover plate; 412. Screw; 413. Observation port; 414. Observation plate; 5. Cleaning device; 51. Threaded rod; 52. First belt groove; 53. Second belt groove; 54. Belt; 55. Third threaded sleeve; 56. Brush plate; 57. Brush strip; 58. Third limiting rod; 59. Collection box; 510. Limiting frame; 511. Limiting groove; 512. Collision block; 513. Collision shaft; 514. Sounder; 515. Trigger button; 516. Spring hole; 517. Spring. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figures 1 to 6 As shown, this embodiment proposes a transmission screw fixing device for a screw gate hoist, comprising a gate hoist body 1, an active screw 2 rotatably connected to the inside of the gate hoist body 1, a transmission screw 3 rotatably connected to the inside of the gate hoist body 1, and a fixing device 4 provided inside the gate hoist body 1;

[0032] The fixing device 4 includes a motor 41, the side of the motor 41 is fixedly connected to the side of the gate opening and closing machine body 1, a bidirectional threaded rod 42 is fixedly connected to the output shaft of the motor 41, a first threaded sleeve 43 is threadedly connected to the circumferential surface of the bidirectional threaded rod 42, a first connecting frame 44 is fixedly connected to the circumferential surface of the first threaded sleeve 43, a first fixing plate 45 is fixedly connected to the side of the first connecting frame 44, a second threaded sleeve 46 is threadedly connected to the circumferential surface of the bidirectional threaded rod 42, a second connecting frame 47 is fixedly connected to the circumferential surface of the second threaded sleeve 46, and a second fixing plate 48 is fixedly connected to the side of the second connecting frame 47.

[0033] The internal rotation of the gate hoist body 1 is connected to a first limiting rod 49, and the internal rotation of the gate hoist body 1 is connected to a second limiting rod 410. This design is conducive to limiting the first threaded sleeve 43 and the second threaded sleeve 46 through the first limiting rod 49 and the second limiting rod 410.

[0034] The top of the gate hoist body 1 is fixedly connected with a cover plate 411, the internal thread of the gate hoist body 1 is fixed with a screw 412, and the bottom of the screw 412 is fixedly connected to the top of the cover plate 411. This design is conducive to fixing the cover plate 411 through the screw 412.

[0035] An observation port 413 is provided on the side of the gate hoist body 1 , and an observation plate 414 is fixedly connected to the inner wall of the observation port 413 . This design facilitates observation through the observation port 413 to determine whether the interior of the gate hoist is damaged.

[0036] The number of screws 412 is set to four, and they are arranged in a circular array on the top of the cover 411. The material of the observation plate 414 is set to glass. This design is conducive to the use of multiple screws 412 to achieve better fixing effect.

[0037] In this embodiment, when the transmission screw 3 needs to be fixed, the motor 41 is started first. When the motor 41 is started, the bidirectional threaded rod 42 on the output shaft of the motor 41 rotates clockwise. When the bidirectional threaded rod 42 rotates clockwise, the first threaded sleeve 43 on the bidirectional threaded rod 42 moves horizontally to the right. When the first threaded sleeve 43 moves horizontally to the right, the first connecting frame 44 on the first threaded sleeve 43 moves horizontally to the right. When the first connecting frame 44 moves horizontally to the right, the first fixing plate 45 on the first connecting frame 44 moves horizontally to the right to fix the transmission screw 3. When the bidirectional threaded rod 42 rotates clockwise, the second threaded sleeve 46 on the bidirectional threaded rod 42 moves horizontally to the left. When the second threaded sleeve 46 moves horizontally to the left, the second connecting frame 47 on the second threaded sleeve 46 moves horizontally to the left. When the second connecting frame 47 moves horizontally to the left, the second connecting frame 47 on the second connecting frame 47 The fixing plate 48 moves horizontally to the left to fix the transmission screw 3. When fixation is not needed, the bidirectional threaded rod 42 rotates counterclockwise, and the first threaded sleeve 43 on the bidirectional threaded rod 42 moves horizontally to the left. When the first threaded sleeve 43 moves horizontally to the left, the first connecting frame 44 on the first threaded sleeve 43 moves horizontally to the left. When the first connecting frame 44 moves horizontally to the left, the first fixing plate 45 on the first connecting frame 44 moves horizontally to the left. At this time, the transmission screw 3 cannot be fixed. When the bidirectional threaded rod 42 rotates counterclockwise, the second threaded sleeve 46 on the bidirectional threaded rod 42 moves horizontally to the right. When the second threaded sleeve 46 moves horizontally to the right, the second connecting frame 47 on the second threaded sleeve 46 moves horizontally to the right. When the second connecting frame 47 moves horizontally to the right, the second fixing plate 48 on the second connecting frame 47 moves horizontally to the right. At this time, the transmission screw 3 cannot be fixed.

[0038] Example 2

[0039] like Figures 1 to 6 As shown, based on the same concept as the above-mentioned embodiment 1, a second embodiment is also proposed. A cleaning device 5 is provided on the side of the gate operating machine body 1, and the cleaning device 5 includes a threaded rod 51. The circumferential surface of the threaded rod 51 is rotatably connected to the inside of the gate operating machine body 1. A first belt groove 52 is provided on the circumferential surface of the bidirectional threaded rod 42, and a second belt groove 53 is provided on the circumferential surface of the threaded rod 51. A belt 54 is connected to the circumferential surface of the first belt groove 52 in a transmission manner. The inner side surface of the belt 54 is on the circumferential surface of the second belt groove 53. A third threaded sleeve 55 is threadedly connected to the circumferential surface of the threaded rod 51. A brush plate 56 is fixedly connected to the circumferential surface of the third threaded sleeve 55. A brush strip 57 is fixedly connected to the side of the brush plate 56. The inside of the gate operating machine body 1 is rotatably connected to a third limiting rod 58, and the side of the gate operating machine body 1 is fixedly connected to a collection box 59. This design is conducive to the transmission of the belt 54, so that the bidirectional threaded rod 42 rotates and drives the threaded rod 51 to rotate, so that the brush strip 57 on the brush plate 56 cleans the observation plate 414.

[0040] The inner wall of the gate opening and closing machine body 1 is fixedly connected to a limiting frame 510, a limiting groove 511 is provided on the side of the limiting groove 511, a collision block 512 is slidably connected to the inner wall of the limiting groove 511, and a collision shaft 513 is fixedly connected to the side of the collision block 512. This design is conducive to limiting the collision block 512 through the limiting frame 510.

[0041] A sounder 514 is fixedly connected to the side of the gate opening machine body 1, and a trigger button 515 is provided on the side of the sounder 514. This design is conducive to causing the sounder 514 to sound an alarm by touching the trigger button 515.

[0042] A spring hole 516 is provided on the inner wall of the gate opening and closing machine body 1, and a spring 517 is fixedly connected to the inner wall of the spring hole 516. One end of the spring 517 away from the spring hole 516 is fixedly connected to the side of the collision block 512. This design is conducive to resetting the collision block 512 through the spring 517.

[0043] The waste liquid tank is located below the waste liquid port, the trigger button 515 is located on the displacement track of the collision shaft 513, and the side of the collision block 512 is elastically connected to the inner wall of the spring hole 516 through the spring 517. This design is conducive to the collision of the collision block 512 through the transmission screw 3, so that the collision shaft 513 on the collision block 512 collides with the trigger button 515, causing the sound 514 to sound an alarm.

[0044] In this embodiment, a large amount of dust will accumulate on the observation plate 414 during long-term use. At this time, the observation plate 414 needs to be cleaned. First, the motor 41 is started. When the motor 41 is started, the bidirectional threaded rod 42 on the output shaft of the motor 41 rotates clockwise. When the bidirectional threaded rod 42 rotates clockwise, the belt 54 drives the bidirectional threaded rod 42 to rotate clockwise, which drives the threaded rod 51 to rotate clockwise. When the threaded rod 51 rotates clockwise, the third threaded sleeve 55 on the threaded rod 51 moves horizontally to the right. When the third threaded sleeve 55 moves horizontally to the right, the brush plate 56 on the third threaded sleeve 55 moves horizontally to the right. Right horizontal movement, when the brush plate 56 moves horizontally to the right, the brush strip 57 at the bottom of the brush plate 56 cleans the observation plate 414, and when the bidirectional threaded rod 42 rotates counterclockwise, the belt 54 is used to drive the bidirectional threaded rod 42 to rotate counterclockwise, thereby driving the threaded rod 51 to rotate counterclockwise. When the threaded rod 51 rotates counterclockwise, the third threaded sleeve 55 on the threaded rod 51 moves horizontally to the left. When the third threaded sleeve 55 moves horizontally to the left, the brush plate 56 on the third threaded sleeve 55 moves horizontally to the left. When the brush plate 56 moves horizontally to the left, the brush strip 57 at the bottom of the brush plate 56 cleans the observation plate 414.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The transmission screw fixing device of the screw gate hoist is characterized by: The hoist comprises a gate hoist body (1), wherein an active screw (2) is rotatably connected to the inside of the gate hoist body (1), a transmission screw (3) is rotatably connected to the inside of the gate hoist body (1), and a fixing device (4) is provided inside the gate hoist body (1); The fixing device (4) comprises a motor (41), the side of the motor (41) is fixedly connected to the side of the gate opening and closing machine body (1), a bidirectional threaded rod (42) is fixedly connected to the output shaft of the motor (41), a first threaded sleeve (43) is threadedly connected to the circumferential surface of the bidirectional threaded rod (42), a first connecting frame (44) is fixedly connected to the circumferential surface of the first threaded sleeve (43), a first fixing plate (45) is fixedly connected to the side of the first connecting frame (44), a second threaded sleeve (46) is threadedly connected to the circumferential surface of the bidirectional threaded rod (42), a second connecting frame (47) is fixedly connected to the circumferential surface of the second threaded sleeve (46), and a second fixing plate (48) is fixedly connected to the side of the second connecting frame (47).

2. The transmission screw fixing device of the screw hoist according to claim 1 is characterized in that: The interior of the hoist body (1) is rotatably connected to a first limiting rod (49), and the interior of the hoist body (1) is rotatably connected to a second limiting rod (410).

3. The transmission screw fixing device of the screw hoist according to claim 2, characterized in that: The top of the hoist body (1) is fixedly connected to a cover plate (411), the internal thread of the hoist body (1) is fixed with a screw (412), and the bottom of the screw (412) is fixedly connected to the top of the cover plate (411).

4. The transmission screw fixing device of the screw hoist according to claim 3 is characterized in that: An observation port (413) is provided on the side of the hoist body (1), and an observation plate (414) is fixedly connected to the inner wall of the observation port (413).

5. The transmission screw fixing device of the screw hoist according to claim 4, characterized in that: The number of the screws (412) is set to four and arranged in a circumferential array on the top of the cover plate (411), and the material of the observation plate (414) is set to glass.

6. The transmission screw fixing device of the screw hoist according to claim 5, characterized in that: A cleaning device (5) is provided on the side of the gate hoist body (1), and the cleaning device (5) comprises a threaded rod (51), the circumferential surface of the threaded rod (51) is rotatably connected to the inside of the gate hoist body (1), a first belt groove (52) is provided on the circumferential surface of the bidirectional threaded rod (42), a second belt groove (53) is provided on the circumferential surface of the threaded rod (51), a belt (54) is transmission-connected to the circumferential surface of the first belt groove (52), the inner side surface of the belt (54) is on the circumferential surface of the second belt groove (53), a third threaded sleeve (55) is threadedly connected to the circumferential surface of the threaded rod (51), a brush plate (56) is fixedly connected to the circumferential surface of the third threaded sleeve (55), a brush strip (57) is fixedly connected to the side of the brush plate (56), a third limiting rod (58) is rotatably connected to the inside of the gate hoist body (1), and a collection box (59) is fixedly connected to the side of the gate hoist body (1).

7. The transmission screw fixing device of the screw hoist according to claim 6, characterized in that: The inner wall of the gate hoist body (1) is fixedly connected to a limiting frame (510), a limiting groove (511) is provided on a side of the limiting frame (510), a collision block (512) is slidably connected to the inner wall of the limiting groove (511), and a collision shaft (513) is fixedly connected to a side of the collision block (512).

8. The transmission screw fixing device of the screw hoist according to claim 7, characterized in that: A sounder (514) is fixedly connected to the side of the hoist body (1), and a trigger button (515) is provided on the side of the sounder (514).

9. The transmission screw fixing device of the screw hoist according to claim 8, characterized in that: A spring hole (516) is provided on the inner wall of the gate hoist body (1), a spring (517) is fixedly connected to the inner wall of the spring hole (516), and one end of the spring (517) away from the spring hole (516) is fixedly connected to the side of the collision block (512).

10. The transmission screw fixing device of the screw hoist according to claim 9, characterized in that: The trigger button (515) is located on the displacement track of the collision shaft (513), and the side surface of the collision block (512) is elastically connected to the inner wall of the spring hole (516) via a spring (517).

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