Rapid pressing device for feeding and discharging box of MU screen

Abstract

An MU sieve feeding and discharging box rapid pressing device comprises a screw rod and a pressing block, one end of the screw rod is hinged to a mechanism base, the MU sieve feeding and discharging box rapid pressing device further comprises a handle, a ratchet wheel and a ratchet wheel claw matched with the ratchet wheel, an eccentric part is formed at one end of the handle, and a handheld part is formed at the other end of the handle; the other end of the screw rod is in threaded connection with the screw rod sleeve, a U-shaped connecting seat is arranged on the screw rod sleeve, the eccentric part of the handle is hinged to the U-shaped connecting seat through a first pin shaft, the first pin shaft penetrates through the ratchet wheel, the pressing block is arranged in the U-shaped connecting seat and can be matched with the eccentric part, and the ratchet wheel claw is hinged to the U-shaped connecting seat through a second pin shaft. The eccentric part is provided with an arc-shaped groove allowing the second pin shaft to penetrate through. And a locking nut is arranged on the screw rod. An eccentric and ratchet mechanism is adopted to replace an original screw and nut mechanism, so that the pressing operation of the feeding and discharging box is convenient and rapid; and a ratchet mechanism is adopted, so that the pressing and loosening can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a quick pressing device for an inlet and outlet box of a MU screen. Background Art

[0002] The existing inlet and outlet boxes of MU screens use screws, nuts and pressure blocks to press the box body. In the existing pressing mechanism, it is time-consuming and laborious to disassemble and install the nuts, and the nuts are easy to loosen if the pre-tightening force is not enough. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a quick pressing device for an MU screen inlet and outlet box, so as to solve the problems of troublesome assembly and disassembly of the pressing device for the MU screen inlet and outlet box, and easy loosening of nuts.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a MU screen inlet and outlet box quick clamping device, including a screw and a pressure block, one end of the screw is hinged to the mechanism seat, and also includes a handle, a ratchet and a ratchet pawl cooperating with the ratchet, one end of the handle forms an eccentric part, and the other end of the handle forms a hand-holding part; the other end of the screw is threadedly connected to the screw sleeve, and the screw sleeve is provided with a U-shaped connecting seat, the eccentric part of the handle is hinged to the U-shaped connecting seat through a first pin shaft, the first pin shaft passes through the ratchet, the pressure block is arranged in the U-shaped connecting seat and can cooperate with the eccentric part, the ratchet pawl is hinged to the U-shaped connecting seat through a second pin shaft, and the eccentric part is provided with an arc groove for the second pin shaft to pass through; the screw is provided with a locking nut. The principle of the utility model is as follows: when pressing, the handle is rotated to drive the ratchet to rotate, and the pressing plate is pressed down due to the action of the eccentric part of the handle. After reaching the pressing point, the handle can be released. Due to the action of the ratchet claw, the handle will not rotate, thus preventing it from loosening. When it is to be loosened, the ratchet claw is lifted by hand, and then the handle is rotated to loosen the pressing plate. The screw sleeve and the screw can adjust the pressing height, and the locking nut can be tightened after the adjustment.

[0005] As an improvement, the screw sleeve includes a connecting portion and the U-shaped connecting seat, and one end of the screw is threadedly connected to the connecting portion.

[0006] As an improvement, the U-shaped connecting seat includes a connecting plate and fork plates arranged at both ends of the connecting plate, the eccentric portion is arranged between the two fork plates, and the connecting portion is welded to the connecting plate.

[0007] As an improvement, the pressing block is T-shaped, comprising a transverse portion and a vertical portion, and the vertical portion is arranged between the two fork plates.

[0008] As an improvement, the eccentric portion is provided with an avoidance groove, the ratchet is arranged in the avoidance groove, and one end of the ratchet pawl is inserted into the avoidance groove and cooperates with the ratchet.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model adopts an eccentric and ratchet mechanism to replace the original screw nut mechanism, so that the pressing operation of the inlet and outlet material box is convenient and fast; and the ratchet mechanism can effectively prevent the pressing from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a plan view of the utility model.

[0012] Figure 2 It is a three-dimensional diagram of the utility model. DETAILED DESCRIPTION

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] like Figure 1 , 2 As shown, a MU screen inlet and outlet box quick clamping device includes a screw 2, a clamping block 5, a handle 6, a ratchet 10 and a ratchet claw 9 matched with the ratchet 10. One end of the screw 2 is hinged to the mechanism seat 1, and the other end of the screw 2 is threadedly connected to the screw sleeve 4; the screw 2 can be turned over through the mechanism seat 1, and the screw sleeve 4 includes a connecting portion and a U-shaped connecting seat, one end of the screw 2 is threadedly connected to the connecting portion, and a locking nut 3 that can clamp the connecting portion is provided on the screw 2, and the screw sleeve 4 and the screw 2 can adjust the clamping height, and the locking nut 3 can be tightened after adjustment; the U-shaped connecting seat includes a connecting plate and fork plates arranged at both ends of the connecting plate, and the connecting portion is welded to the connecting plate. An eccentric portion 61 is formed at one end of the handle 6, and a hand-held portion 62 is formed at the other end of the handle 6; the eccentric portion 61 of the handle 6 is hinged to the U-shaped connection seat through a first pin shaft 7, and the first pin shaft 7 passes through the ratchet 10. The pressure block 5 is arranged in the U-shaped connection seat and can cooperate with the eccentric portion 61. The ratchet pawl 9 is hinged to the U-shaped connection seat through a second pin shaft 8, and an arc groove 63 is provided on the eccentric portion 61 for the second pin shaft 8 to pass through; an avoidance groove is provided on the eccentric portion 61, and the ratchet 10 is arranged in the avoidance groove, and one end of the ratchet pawl 9 is inserted into the avoidance groove and cooperates with the ratchet 10. The pressure block 5 is T-shaped, and includes a transverse portion and a vertical portion, and the vertical portion is arranged between two fork plates; the pressure block 5 is arranged between the connection plate and the eccentric portion 61, and when the handle 6 rotates, the eccentric portion 61 can press the pressure block 5.

[0015] The principle of the utility model is as follows: when pressing, rotating the handle 6 drives the ratchet to rotate, and the pressing plate is pressed down by the eccentric portion 61 of the handle 6. When the pressing point is reached, the handle 6 can be released. Due to the action of the ratchet pawl 9, the handle 6 will not rotate, thereby preventing loosening. When it is to be released, the ratchet pawl 9 is lifted by hand, and then the handle 6 is rotated to release the pressing plate.

Claims

1. A quick pressing device for an MU screen inlet and outlet box, comprising a screw and a pressing block, one end of the screw being hinged to a mechanism seat, characterized in that: It also includes a handle, a ratchet and a ratchet pawl that cooperates with the ratchet, one end of the handle forms an eccentric portion, and the other end of the handle forms a hand-holding portion; the other end of the screw is threadedly connected to the screw sleeve, and the screw sleeve is provided with a U-shaped connecting seat, the eccentric portion of the handle is hinged to the U-shaped connecting seat through a first pin shaft, and the first pin shaft passes through the ratchet, the pressure block is arranged in the U-shaped connecting seat and can cooperate with the eccentric portion, the ratchet pawl is hinged to the U-shaped connecting seat through a second pin shaft, and the eccentric portion is provided with an arc groove for the second pin shaft to pass through; the screw is provided with a locking nut.

2. A MU screen inlet and outlet box quick pressing device according to claim 1, characterized in that: The screw sleeve comprises a connecting portion and the U-shaped connecting seat, and one end of the screw is threadedly connected to the connecting portion.

3. A MU screen inlet and outlet box quick pressing device according to claim 2, characterized in that: The U-shaped connecting seat comprises a connecting plate and fork plates arranged at both ends of the connecting plate, the eccentric portion is arranged between the two fork plates, and the connecting portion is welded on the connecting plate.

4. A MU screen inlet and outlet box quick pressing device according to claim 3, characterized in that: The pressing block is T-shaped and comprises a transverse portion and a vertical portion, wherein the vertical portion is arranged between two fork plates.

5. The MU screen inlet and outlet box quick pressing device according to claim 1 is characterized by: The eccentric part is provided with an escape groove, the ratchet is arranged in the escape groove, and one end of the ratchet pawl is inserted into the escape groove and matched with the ratchet.

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