Trapezoidal lead screw dustproof device

Abstract

The utility model discloses a trapezoidal lead screw dustproof device, which belongs to the technical field of trapezoidal lead screws, and comprises a lead screw, the lead screw is in threaded connection with a lead screw nut, the lead screw is rotationally connected with a pair of ring sleeves, each ring sleeve is provided with a pair of movable grooves, each movable groove is internally provided with a fixing assembly, and the fixing assemblies are fixedly connected with the lead screw nut. A first connecting ring is movably arranged on each ring sleeve, an organ cover is fixedly connected to the bottom of each first connecting ring, and a second connecting ring is fixedly connected to the bottom of each organ cover. By arranging the fixing assembly and the locking assembly, rapid assembly and disassembly of the dustproof device, the trapezoidal lead screw and the lead screw nut are achieved, the installation and disassembly efficiency is greatly improved, time and labor cost are saved, and when equipment is maintained and overhauled, the dustproof device can be rapidly replaced, and it is ensured that the equipment recovers normal operation as soon as possible; the dustproof device can be adjusted in time according to different working conditions, the dustproof effect is always good, and the service life of the trapezoidal lead screw and the lead screw nut is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to trapezoidal screw technology field, concretely is a trapezoidal screw dustproof device. BACKGROUND

[0002] The screw rod is a kind of mechanical element that converts rotary motion into linear motion, it is usually composed of screw rod and nut, through the rotation of screw rod, make the nut linear motion in its axial direction, trapezoidal screw is the screw rod of trapezoidal thread, and the screw rod dustproof device is to protect the screw rod from dust, impurities and other pollution, common screw rod dustproof device has telescopic dust cover, folding dust cover and the like, these dustproof devices can effectively block the impurities from outside into the screw rod, prolong the service life of screw rod, ensure the precision and stability of equipment.

[0003] The existing trapezoidal screw dustproof device still has the following shortcomings: the existing trapezoidal screw dustproof device is inconvenient to assemble and disassemble, the connection mode of the existing trapezoidal screw dustproof device and the trapezoidal screw is not reasonable, and special tools are needed to install and disassemble, when the screw rod needs to be overhauled or replaced, more manpower and time are consumed, and the difficulty and cost of equipment maintenance are increased. UTILITY MODEL CONTENTS

[0004] In order to overcome the above defects, the utility model provides a trapezoidal screw dustproof device, which solves the problem of inconvenient assembly and disassembly of the existing trapezoidal screw dustproof device.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a trapezoidal screw dustproof device, comprising a screw rod, a screw nut is connected to the screw rod by screwing, a pair of ring sleeves are rotatably connected to the screw rod, a pair of movable grooves are formed in each ring sleeve, a fixing assembly is arranged in each movable groove, a connecting ring one is movably arranged on each ring sleeve, an organ case is fixedly connected to the bottom of the connecting ring one, a connecting ring two is fixedly connected to the bottom of the organ case, a pair of locking assemblies are arranged on the connecting ring two, and a pair of connecting columns are fixedly connected to the top and bottom of the screw nut.

[0006] As a further scheme of the utility model: the fixing assembly comprises a connecting plate, the connecting plate is fixedly connected to the movable groove, a sliding rod is movably arranged on the connecting plate, a spring is sleeved on the outer periphery of the sliding rod, a limiting block is fixedly connected to the bottom of the sliding rod, a fixed block is fixedly connected to the top of the sliding rod, and a rotating block is fixedly connected to the top of the fixed block.

[0007] As a further scheme of the utility model: a pair of through grooves are formed in the connecting ring one, and the through grooves are matched with the fixed block.

[0008] As a further scheme of the utility model: the locking assembly includes a connecting seat, the connecting seat is fixedly connected to the outer periphery of the connecting ring two, a rotating shaft is rotatably connected to the top of the connecting seat, a handle is fixedly connected to the rotating shaft, a connecting rod one is fixedly connected to the top of the rotating shaft, a connecting rod two is rotatably connected to one end of the connecting rod one, a pair of annular rings are fixedly connected to the top of the connecting ring two, a sliding block is slidably connected to each annular ring, a connecting block is fixedly connected to the side of the sliding block close to the rotating shaft, and one end of the connecting rod two is rotatably connected to the connecting block.

[0009] As a further scheme of the utility model: a pair of through holes are formed in the connecting ring two, and the connecting column is matched with the through holes.

[0010] As a further scheme of the utility model: a rubber pad is arranged on the side of the sliding block away from the connecting block.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a fixing assembly and a locking assembly are arranged, realize that the dustproof device is with trapezoidal screw rod and screw nut quick assembly and disassembly, greatly improve installation and disassembly efficiency, save time and manpower cost, when equipment maintenance and overhaul, can replace dustproof device quickly, ensure that equipment recovers normal operation as soon as possible, also can adjust dustproof device in time according to different working conditions, guarantee that dustproof effect is always good, prolong the service life of trapezoidal screw rod and screw nut. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole schematic view of the utility model;

[0014] Figure 2 It is the Figure 1 enlarged view of A in the utility model;

[0015] Figure 3 It is the screw rod schematic view of the utility model;

[0016] Figure 4 It is the Figure 3 enlarged view of B in the utility model;

[0017] Figure 5 It is the Figure 1 enlarged view of C in the utility model.

[0018] In the figure: 1, lead screw; 2, lead screw nut; 3, ring sleeve; 4, connecting ring one; 5, organ cover; 6, connecting ring two; 7, connecting column; 8, connecting plate; 9, slide bar; 10, spring; 11, limit block; 12, fixed block; 13, rotating block; 14, connecting seat; 15, rotating shaft; 16, handle; 17, connecting rod one; 18, connecting rod two; 19, circular ring; 20, sliding block; 21, connecting block. DETAILED DESCRIPTION

[0019] The technical scheme of the patent will be further described in detail in combination with specific embodiments.

[0020] As Figures 1-5 shown, the utility model provides a technical scheme:

[0021] Including lead screw 1, be provided with lead screw nut 2 on lead screw 1 screw connection, be provided with a pair of ring sleeve 3 on lead screw 1 rotation connection, a pair of movable grooves are set up on each ring sleeve 3, each movable groove is provided with fixed assembly, each ring sleeve 3 is movably provided with connecting ring one 4 on, connecting ring one 4 bottom fixedly connected with organ cover 5, organ cover 5 bottom fixedly connected with connecting ring two 6, be provided with a pair of locking assembly on connecting ring two 6, lead screw nut 2 top and bottom are fixedly connected with a pair of connecting column 7;

[0022] Specifically, the fixed assembly fixes the ring sleeve 3 and the connecting ring one 4 together, the locking assembly locks the lead screw nut 2 and the connecting ring two 6, the organ cover 5 can prevent dust from entering the lead screw 1, and the movement of the lead screw nut 2 on the lead screw 1 can drive the organ cover 5 to stretch or fold, and the inner wall of the organ cover 5 does not contact the lead screw 1;

[0023] The fixed assembly includes a connecting plate 8, the connecting plate 8 is fixedly connected to the movable groove, a slide bar 9 is movably arranged on the connecting plate 8, a spring 10 is sleeved on the outer periphery of the slide bar 9, a limit block 11 is fixedly connected to the bottom of the slide bar 9, a fixed block 12 is fixedly connected to the top of the slide bar 9, and the top of the fixed block 12 is fixedly connected to a rotating block 13.

[0024] Specifically, the rotating block 13 is rotated to drive the fixed block 12, the slide bar 9 and the limit block 11 to rotate together, and the bottom of the fixed block 12 is provided with an inclined surface.

[0025] A pair of through grooves are formed on the connecting ring one 4, and the through grooves are matched with the fixed block 12.

[0026] Specifically, when the fixed block 12 rotates, the bottom surface of the fixed block 12 is gradually lifted to the top of the through groove, the slide bar 9 and the limit block 11 rotate while gradually moving upward, so that the spring 10 is compressed, the spring 10 exerts a downward force on the limit block 11, and the fixed block 12 firmly fixes the ring sleeve 3 and the connecting ring one 4 together.

[0027] The locking assembly comprises a connecting seat 14 fixedly connected to the outer periphery of the connecting ring two 6, a rotating shaft 15 rotatably connected to the top of the connecting seat 14, a handle 16 fixedly connected to the rotating shaft 15, a connecting rod one 17 fixedly connected to the top of the rotating shaft 15, a connecting rod two 18 rotatably connected to one end of the connecting rod one 17, a pair of annular rings 19 fixedly connected to the top of the connecting ring two 6, a sliding block 20 slidably connected to each annular ring 19, a connecting block 21 fixedly connected to the side of the sliding block 20 close to the rotating shaft 15, and one end of the connecting rod two 18 rotatably connected to the connecting block 21.

[0028] Specifically, the handle 16 is counterclockwise rotated to drive the rotating shaft 15 and the connecting rod one 17 to rotate together, the connecting rod two 18 is moved at one end of the connecting rod one 17, and the other end pushes the connecting block 21 to make the sliding block 20 slide on the annular ring 19; when the included angle between the connecting rod one 17 and the connecting rod two 18 is 180°, the handle 16 is continuously rotated until the handle 16 is close to the annular ring 19.

[0029] A pair of through holes are formed in the connecting ring two 6, and the connecting column 7 is matched with the through holes;

[0030] Specifically, the sliding block 20 slides close to the connecting column 7, and a flat surface is arranged on the outer periphery of the connecting column 7.

[0031] A rubber pad is arranged on the side of the sliding block 20 away from the connecting block 21.

[0032] Specifically, the sliding block 20 drives the rubber pad to lock the connecting column 7; when the included angle between the connecting rod one 17 and the connecting rod two 18 is 180°, the rubber pad is compressed to the tightest, the handle 16 is continuously rotated to reduce the compression degree of the rubber pad, and after the rotation of the handle 16 is stopped, the rubber pad applies an outward pushing force to the sliding block 20 to make the handle 16 continue to rotate counterclockwise, but the locking assembly is self-locked due to the blockage of the annular ring 19.

[0033] The working principle of the utility model is as follows:

[0034] First, the rotating block 13 is rotated to drive the fixed block 12, the sliding rod 9 and the limiting block 11 to rotate together; the bottom surface of the fixed block 12 is provided with an inclined surface, and when the fixed block 12 is rotated, the bottom surface of the fixed block 12 is gradually lifted to the top of the through groove; the sliding rod 9 and the limiting block 11 are rotated and gradually move upward at the same time, so that the spring 10 is compressed; the spring 10 applies a downward force to the limiting block 11, so that the fixed block 12 firmly fixes the ring sleeve 3 and the connecting ring one 4 together.

[0035] Continue to rotate the handle 16 anticlockwise, drive the rotating shaft 15 and the connecting rod 1 7 to rotate together, the connecting rod 2 18 moves with one end of the connecting rod 1 7, and the other end pushes the connecting block 21, so that the sliding block 20 slides on the ring 19 to be close to the connecting column 7, when the connecting rod 1 7 and the connecting rod 2 18 are 180°, continue to rotate the handle 16 until the handle 16 is close to the ring 19, the sliding block 20 drives the rubber pad to lock the connecting column 7, when the connecting rod 1 7 and the connecting rod 2 18 are 180°, the rubber pad is compressed to the tightest, continue to rotate the handle 16 to make the rubber pad compression degree decrease, stop rotating the handle 16, the rubber pad applies the outward thrust to the sliding block 20, so that the handle 16 continues to rotate anticlockwise, but due to the block of the ring 19, the locking assembly realizes self-locking, and the lead screw nut 2 and the connecting ring 2 are locked;

[0036] The organ cover 5 can prevent dust from entering the lead screw 1, the lead screw nut 2 moves on the lead screw 1 to drive the organ cover 5 to stretch or fold, and the inner wall of the organ cover 5 does not contact the lead screw 1.

[0037] The above describes the preferred embodiment of the patent in detail, but the patent is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the patent.

Claims

1. A trapezoidal screw dust-proof device, comprising a screw (1), characterized in that: The screw (1) is threadedly connected to a screw nut (2), and a pair of ring sleeves (3) are rotatably connected to the screw (1). Each of the ring sleeves (3) is provided with a pair of movable grooves, and a fixing component is provided in each of the movable grooves. A connecting ring (4) is movably provided on each of the ring sleeves (3). The bottom of the connecting ring (4) is fixedly connected to a bellows cover (5), and the bottom of the bellows cover (5) is fixedly connected to a connecting ring (6). A pair of locking components are provided on the connecting ring (6). The top and bottom of the screw nut (2) are fixedly connected to a pair of connecting columns (7).

2. A trapezoidal screw dust prevention device according to claim 1, characterized in that: The fixing assembly comprises a connecting plate (8), the connecting plate (8) is fixedly connected to the movable groove, a sliding rod (9) is movably provided on the connecting plate (8), a spring (10) is sleeved on the outer periphery of the sliding rod (9), the bottom of the sliding rod (9) is fixedly connected to a limiting block (11), the top of the sliding rod (9) is fixedly connected to a fixed block (12), and the top of the fixed block (12) is fixedly connected to a rotating block (13).

3. A trapezoidal screw dust prevention device according to claim 2, characterized in that: The connecting ring (4) is provided with a pair of through slots, and the through slots are adapted to the fixing block (12).

4. A trapezoidal screw dust prevention device according to claim 3, characterized in that: The locking assembly comprises a connecting seat (14), the connecting seat (14) is fixedly connected to the outer periphery of the connecting ring 2 (6), the top of the connecting seat (14) is rotatably connected to a rotating shaft (15), the rotating shaft (15) is fixedly connected to a handle (16), the top of the rotating shaft (15) is fixedly connected to a connecting rod 1 (17), one end of the connecting rod 1 (17) is rotatably connected to a connecting rod 2 (18), the top of the connecting ring 2 (6) is fixedly connected to a pair of circular rings (19), each of the circular rings (19) is slidably connected to a slider (20), the slider (20) is fixedly connected to a connecting block (21) on the side close to the rotating shaft (15), and one end of the connecting rod 2 (18) is rotatably connected to the connecting block (21).

5. The trapezoidal screw dust prevention device according to claim 4, characterized in that: The second connecting ring (6) is provided with a pair of through holes, and the connecting column (7) is adapted to the through holes.

6. The trapezoidal screw dust prevention device according to claim 5, characterized in that: A rubber pad is provided on the side of the slider (20) away from the connecting block (21).

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