A door locking mechanism for shot blasting machine

Abstract

The present invention discloses a door locking mechanism for a shot blasting machine, and relates to the technical field of door locking mechanisms, including a box body, a door and a rotating rod, wherein the door is rotatably connected to the box body through the rotating rod, a mounting groove is provided on the front surface of the door, a cover plate is provided on the door relative to the mounting groove, and a locking assembly is provided inside the mounting groove. The door locking mechanism for a shot blasting machine can make the clamping plate rotate ninety degrees and fall into the clamping cavity on the inner side of two limiting plates by providing a locking assembly, thereby completing the locking operation between the box body and the door, and at the same time, by providing a pressing limiting assembly, the cavity rod can be limited before and after locking, thereby preventing it from shaking, greatly increasing the stability between the box body and the door after locking, and solving the problem of easy loosening between the box body and the door in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of box door locking mechanisms, in particular to a box door locking mechanism for a shot blasting machine. Background Art

[0002] Shot blasting machine is a casting equipment that uses high-speed projectiles thrown by the shot blaster to clean or strengthen the surface of castings. Shot blasting machine can simultaneously remove sand, core and clean castings.

[0003] After searching, the Chinese patent application with patent number CN104526575A discloses a door locking mechanism for a shot blasting machine, including two door panels arranged opposite to each other, a lock tongue with a mounting hole arranged on the door panels, and a door lock connected to the two door panels. The door lock includes two lock grooves respectively matching the lock tongues and a lock core extending into the lock groove and engaging with the lock tongue, and the lock core is controlled to extend and retract by a linkage. The door locking mechanism for a shot blasting machine can lock the shot blasting machine.

[0004] The existing technology still has certain shortcomings when it is used. For example, the sand and gravel sprayed by the shot blasting machine when it is working will splash everywhere, thereby impacting the box door. The locking mechanism in the existing technology is relatively simple and has poor stability. Under the impact of the sand and gravel, the existing locking mechanism will loosen, thereby causing the box door to loosen and the box body cannot be closed.

[0005] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0006] The object of the present invention is to provide a box door locking mechanism for a shot blasting machine to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a box door locking mechanism for a shot blasting machine, comprising a box body, a box door and a rotating rod, the box door is rotatably connected to the box body through the rotating rod, a mounting groove is provided on the front surface of the box door, a cover plate is provided on the box door at a position corresponding to the mounting groove, and a locking assembly is provided inside the mounting groove;

[0008] The locking assembly includes a bearing fixedly sleeved with the cover plate, a cavity rod fixedly sleeved inside the bearing, a first gear fixedly sleeved on the outer side of one end of the cavity rod relative to the mounting groove, a second gear meshingly connected to the first gear, a linkage rod fixedly sleeved on the second gear, one end of the linkage rod passes through the outer side of the rear surface of the box door, the linkage rod and the box door are rotatably connected, a positioning sleeve block fixedly sleeved on the outer side of one end of the linkage rod, a clamping plate fixedly connected on the outer side of the positioning sleeve block, two limit plates fixedly connected at a position where the inner wall of the box body is rotated ninety degrees relative to the clamping plate, and a clamping cavity is formed on the inner sides of the two limit plates;

[0009] A pressing and limiting component is arranged inside the cavity rod, an elastic component is arranged inside the cavity rod at a position relative to the pressing and limiting component, and a reset component is arranged inside the installation groove at a position relative to the cavity rod;

[0010] The pressing limit assembly includes a pressing rod movably sleeved with the cavity rod, a pressing groove is provided at the inner bottom end of the installation groove relative to the position of the pressing rod, a positioning groove is provided at the inner bottom end of the pressing groove, the cross-sectional area value of the positioning groove in the front view is greater than the cross-sectional area value of the pressing groove in the front view, a positioning plate is fixedly connected to the position of the bottom end of the pressing rod relative to the positioning groove, a positioning ring is fixedly connected to the inner side wall of the positioning groove relative to the position of the positioning plate, and a first engaging groove and a second engaging groove are equidistantly provided on the rear surface of the positioning ring;

[0011] The reset assembly includes a sleeve sleeved on the outside of the cavity rod, the sleeve is fixedly connected to the cover plate, a torsion spring is arranged on the inner side of the cavity rod and the sleeve, and the two ends of the torsion spring are respectively connected to the inner side wall of the sleeve and the outer side of the cavity rod.

[0012] Preferably, the elastic component includes a spring movably sleeved with the pressing rod and a linkage plate fixedly sleeved with the pressing rod, one end of the spring is connected to one side of the linkage plate, and the outer side surface of the linkage plate fits with the inner side wall of the cavity rod.

[0013] Preferably, one end of the pressing rod away from the positioning groove is fixedly connected to a pressing plate, and the outer side of one end of the cavity rod away from the positioning groove is fixedly sleeved with a rotating disk, and a pressing gap is reserved between the rotating disk and the pressing plate.

[0014] Preferably, an embedding groove is provided on the box door at a position relative to the cover plate, and bolts are threadedly sleeved on the cover plate, and the cover plate is detachably connected to the box door via the bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a locking assembly, so that the locking plate can be rotated 90 degrees and then fall into the locking cavity on the inner side of the two limiting plates, thereby completing the locking operation between the box body and the door. At the same time, by providing a pressing limiting assembly, the cavity rod can be limited before and after locking, thereby preventing it from shaking, greatly increasing the stability of the box body and the door after locking, and solving the problem of easy loosening between the box body and the door in the prior art;

[0017] 2. The present invention sets a reset component, and during the locking process, when the cavity rod rotates, the torsion spring will contract to generate a reset force, so that when unlocking, by pressing the pressing rod downward, the spring can be compressed under the linkage of the linkage plate, and at the same time, the pressing rod drives the positioning plate to move downward, so that the positioning plate is disengaged from the inside of the first engaging groove, and then the pressing rod is rotated to make the front surface of the positioning plate contact with the rear surface of the positioning ring. At this time, under the action of the reset force of the sleeve, its reset force can make the cavity rod rotate automatically, and the rotation direction is opposite to the rotation direction during locking, and then under the linkage of the first gear, the second gear, the linkage rod and the positioning sleeve block and other structures, the positioning sleeve block can be rotated in the opposite direction to the initial position, thereby realizing the automatic unlocking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the cabinet door of the present invention from top view.

[0020] Figure 3 It is a schematic diagram of the rear cross-sectional structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning plate of the present invention.

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0023] Figure 6 For the present invention Figure 2 Schematic diagram of the structure at point B in the middle.

[0024] Figure 7 For the present invention Figure 4 Schematic diagram of the structure at point C in the middle.

[0025] In the figure:

[0026] 1. Box body; 2. Box door; 3. Rotating rod; 4. Mounting groove; 5. Cover plate; 6. Embedding groove; 7. Bearing; 8. Cavity rod; 9. First gear; 10. Second gear; 11. Linkage rod; 12. Positioning sleeve; 13. Clamping plate; 14. Limiting plate; 15. Pressing rod; 16. Pressing groove; 17. Positioning groove; 18. Positioning plate; 19. Positioning ring; 20. First clamping groove; 21. Second clamping groove; 22. Spring; 23. Linkage plate; 24. Sleeve; 25. Torsion spring; 26. Rotating disk; 27. Pressing plate; 28. Bolt; 29. ​​Limiting sleeve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a box door locking mechanism for a shot blasting machine, comprising a box body 1, a box door 2 and a rotating rod 3, the box door 2 is rotatably connected to the box body 1 through the rotating rod 3, a mounting groove 4 is provided on the front surface of the box door 2, a cover plate 5 is provided on the box door 2 at a position relative to the mounting groove 4, and a locking assembly is provided inside the mounting groove 4;

[0029] The locking assembly includes a bearing 7 fixedly sleeved with the cover plate 5, a cavity rod 8 fixedly sleeved inside the bearing 7, a first gear 9 fixedly sleeved on the outer side of one end of the cavity rod 8 relative to the position of the mounting groove 4, a second gear 10 meshingly connected to the first gear 9, a linkage rod 11 fixedly sleeved on the second gear 10, one end of the linkage rod 11 passes through the outer side of the rear surface of the box door 2, the linkage rod 11 is rotatably connected to the box door 2, a positioning sleeve 12 is fixedly sleeved on the outer side of one end of the linkage rod 11, a clamping plate 13 is fixedly connected to the outer side of the positioning sleeve 12, two limit plates 14 are fixedly connected to the position of the inner wall of the box body 1 rotated ninety degrees relative to the clamping plate 13, and the inner sides of the two limit plates 14 are formed with a clamping cavity;

[0030] A press-limiting assembly is disposed inside the cavity rod 8 , an elastic assembly is disposed inside the cavity rod 8 at a position relative to the press-limiting assembly, and a reset assembly is disposed inside the mounting groove 4 at a position relative to the cavity rod 8 .

[0031] When locking, by rotating the cavity rod 8, under the action of the bearing 7, it can be rotated inside the cover plate 5, and by rotating the cavity rod 8, the first gear 9 can be driven to rotate, and under the linkage action of the second gear 10, the linkage rod 11 can be driven to rotate, and the positioning sleeve 12 can be driven to rotate synchronously through the linkage rod 11, and then the clamping plate 13 can be driven to rotate, and the clamping plate 13 can be rotated by rotating the clamping plate 13 by ninety degrees, so that the clamping plate 13 can be rotated and fall into the clamping cavity inside the two limit plates 14, so that the locking operation between the box body 1 and the box door 2 can be completed;

[0032] By setting a pressing limit component, the cavity rod 8 can be limited before and after locking to prevent it from rotating. By setting an elastic component, automatic reset can be achieved after pressing. By setting a reset component, the automatic unlocking function can be achieved when unlocking.

[0033] It should also be noted that the outer side of the linkage rod 11 is fixedly sleeved with a limiting sleeve 29, the limiting sleeve 29 is located on the inner side of the positioning sleeve 12 and the box door 2, and the limiting sleeve 29 is in contact with the box door 2. In this way, the second gear 10 can be limited, thereby increasing the stability of the second gear 10 when rotating.

[0034] The pressing limit assembly includes a pressing rod 15 movably sleeved with the cavity rod 8, a pressing groove 16 is provided at the inner bottom end of the mounting groove 4 relative to the position of the pressing rod 15, a positioning groove 17 is provided at the inner bottom end of the pressing groove 16, the cross-sectional area value of the positioning groove 17 in the main view is greater than the cross-sectional area value of the pressing groove 16 in the main view, a positioning plate 18 is fixedly connected with the position of the bottom end of the pressing rod 15 relative to the positioning groove 17, a positioning ring 19 is fixedly connected with the inner side wall of the positioning groove 17 relative to the position of the positioning plate 18, and a first engaging groove 20 and a second engaging groove 21 are equidistantly provided on the rear surface of the positioning ring 19; the elastic assembly includes a spring 22 movably sleeved with the pressing rod 15 and a linkage plate 23 fixedly sleeved with the pressing rod 15, one end of the spring 22 is connected to one side of the linkage plate 23, and the outer side surface of the linkage plate 23 is in contact with the inner side wall of the cavity rod 8;

[0035] It should also be noted that, in the initial state, under the action of the elastic component, the positioning plate 18 is clamped on the inner side of the first clamping groove 20;

[0036] When the locking mechanism is in place, the spring 22 is pressed against the locking member 23, and the locking member 23 is released to engage the locking member 23. The locking member 23 is then released to engage the locking member 23, and the locking member 23 is released to engage the locking member 23.

[0037] The reset assembly includes a sleeve 24 sleeved on the outside of the cavity rod 8, the sleeve 24 is fixedly connected to the cover plate 5, and a torsion spring 25 is arranged on the inner side of the cavity rod 8 and the sleeve 24, and the two ends of the torsion spring 25 are respectively connected to the inner side wall of the sleeve 24 and the outer side of the cavity rod 8; by setting the reset assembly, during the locking process, when the cavity rod 8 rotates, the torsion spring 25 will contract to generate a reset force, so that when unlocking, by pressing the pressing rod 15 downward, the spring 22 can be compressed under the linkage of the linkage plate 23, and the pressing rod 15 with The movable positioning plate 18 moves downward, so that the positioning plate 18 is disengaged from the inside of the first engaging groove 20, and then the pressing rod 15 is rotated to make the front surface of the positioning plate 18 contact the rear surface of the positioning ring 19. At this time, under the action of the reset force of the sleeve 24, its reset force can make the cavity rod 8 automatically rotate, and the rotation direction is opposite to the rotation direction when locked. Then, under the linkage of the first gear 9, the second gear 10, the linkage rod 11 and the positioning sleeve block 12 and other structures, the positioning sleeve block 12 can be rotated in the opposite direction to the initial position, realizing the automatic unlocking function.

[0038] One end of the pressing rod 15 away from the positioning groove 17 is fixedly connected to a pressing plate 27, and the outer side of the end of the cavity rod 8 away from the positioning groove 17 is fixedly sleeved with a rotating disk 26, and a pressing gap is reserved between the rotating disk 26 and the pressing plate 27. By setting it, it is convenient to operate the pressing limit assembly, by setting the pressing plate 27, it is convenient to press the pressing rod 15, and by setting the rotating disk 26, it is convenient to rotate the cavity rod 8; an embedding groove 6 is opened on the box door 2 at a position relative to the cover plate 5, and a bolt 28 is threadedly sleeved on the cover plate 5. The cover plate 5 is detachably connected to the box door 2 by the bolt 28. By such a setting, it is convenient to disassemble the cover plate 5.

[0039] Working principle: when locking, by rotating the cavity rod 8, under the action of the bearing 7, it can be rotated inside the cover plate 5, and by rotating the cavity rod 8, the first gear 9 can be driven to rotate, and under the linkage action of the second gear 10, the linkage rod 11 can be driven to rotate, and the positioning sleeve 12 can be driven to rotate synchronously through the linkage rod 11, and then the locking plate 13 can be driven to rotate, and the locking plate 13 can be rotated by rotating the locking plate 13 by ninety degrees, so that the locking plate 13 can be rotated and fall into the locking cavity on the inner side of the two limit plates 14, so as to complete the locking operation between the box body 1 and the door 2; by setting By pressing the limit assembly and the elastic assembly, before locking, the pressing rod 15 needs to be pressed downward first, and the spring 22 can be compressed under the linkage of the linkage plate 23. At the same time, the pressing rod 15 drives the positioning plate 18 to move downward, so that the positioning plate 18 is separated from the inside of the first engaging groove 20, and then the pressing rod 15 is rotated to make the front surface of the positioning plate 18 contact the rear surface of the positioning ring 19. Only then can the cavity rod 8 be rotated. When the cavity rod 8 is rotated so that the box body 1 and the box door 2 are in a locked state, the pressing rod 15 is rotated to drive the positioning plate 18 to rotate to the first engaging groove 20. The locking member 25 is pressed against the locking member 20 and the locking member 21 is pressed against the locking member 20. The locking member 25 is pressed against the locking member 20 and the locking member 21 is pressed against the locking member 20. The spring 22 is compressed, and at the same time, the pressing rod 15 drives the positioning plate 18 to move downward, so that the positioning plate 18 is disengaged from the inside of the first engaging groove 20, and then the pressing rod 15 is rotated to make the front surface of the positioning plate 18 contact the rear surface of the positioning ring 19. At this time, under the action of the reset force of the sleeve 24, its reset force can make the cavity rod 8 automatically rotate, and the rotation direction is opposite to the rotation direction when locked. Then, under the linkage of the first gear 9, the second gear 10, the linkage rod 11 and the positioning sleeve block 12 and other structures, the positioning sleeve block 12 can be rotated in the opposite direction to the initial position, thereby realizing the automatic unlocking function.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door locking mechanism for a shot blasting machine, comprising a box body (1), a box door (2) and a rotating rod (3), wherein the box door (2) is rotatably connected to the box body (1) via the rotating rod (3), and characterized in that: A mounting groove (4) is provided on the front surface of the box door (2), a cover plate (5) is provided on the box door (2) at a position relative to the mounting groove (4), and a locking assembly is provided inside the mounting groove (4); The locking assembly comprises a bearing (7) fixedly sleeved between the cover plate (5), a cavity rod (8) fixedly sleeved inside the bearing (7), a first gear (9) fixedly sleeved on the outer side of one end of the cavity rod (8) at a position relative to the mounting groove (4), a second gear (10) meshingly connected to the first gear (9), a linkage rod (11) fixedly sleeved on the second gear (10), one end of the linkage rod (11) passing through the outer side of the rear surface of the box door (2), the linkage rod (11) and the box door (2) being rotatably connected, a positioning sleeve (12) fixedly sleeved on the outer side of one end of the linkage rod (11), a clamping plate (13) fixedly connected to the outer side surface of the positioning sleeve (12), two limit plates (14) fixedly connected to the inner side wall of the box body (1) at a position rotated ninety degrees relative to the clamping plate (13), and a clamping cavity is formed on the inner sides of the two limit plates (14); A pressing limit assembly is arranged inside the cavity rod (8), an elastic assembly is arranged inside the cavity rod (8) at a position relative to the pressing limit assembly, and a reset assembly is arranged inside the mounting groove (4) at a position relative to the cavity rod (8); The pressing limit assembly comprises a pressing rod (15) movably sleeved with the cavity rod (8); a pressing groove (16) is provided at the inner bottom end of the mounting groove (4) at a position relative to the pressing rod (15); a positioning groove (17) is provided at the inner bottom end of the pressing groove (16); the cross-sectional area value of the positioning groove (17) in a front view is greater than the cross-sectional area value of the pressing groove (16) in a front view; a positioning plate (18) is fixedly connected to the bottom end of the pressing rod (15) at a position relative to the positioning groove (17); a positioning ring (19) is fixedly connected to the inner side wall of the positioning groove (17) at a position relative to the positioning plate (18); and a first engaging groove (20) and a second engaging groove (21) are equidistantly provided on the rear surface of the positioning ring (19); The reset assembly comprises a sleeve (24) sleeved on the outside of the cavity rod (8), the sleeve (24) being fixedly connected to the cover plate (5), a torsion spring (25) being arranged on the inside of the cavity rod (8) and the sleeve (24), and two ends of the torsion spring (25) being respectively connected to the inner side wall of the sleeve (24) and the outer side surface of the cavity rod (8).

2. The door locking mechanism for a shot blasting machine according to claim 1, characterized in that: The elastic component comprises a spring (22) movably sleeved with the pressing rod (15) and a linkage plate (23) fixedly sleeved with the pressing rod (15); one end of the spring (22) is connected to one side of the linkage plate (23); and the outer side surface of the linkage plate (23) is in contact with the inner side wall of the cavity rod (8).

3. The door locking mechanism for a shot blasting machine according to claim 1, characterized in that: One end of the pressing rod (15) away from the positioning groove (17) is fixedly connected to a pressing plate (27), and one end of the cavity rod (8) away from the positioning groove (17) is fixedly sleeved with a rotating disk (26) on the outer side, and a pressing gap is reserved between the rotating disk (26) and the pressing plate (27).

4. The door locking mechanism for a shot blasting machine according to claim 1, characterized in that: An embedding groove (6) is provided on the box door (2) at a position relative to the cover plate (5), a bolt (28) is threadedly sleeved on the cover plate (5), and the cover plate (5) is detachably connected to the box door (2) via the bolt (28).

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