Elastic locking mechanism for upper cover of shredding machine

Abstract

The utility model relates to the technical field of food machinery, in particular to a shredding machine upper cover elastic locking mechanism which comprises a handle, a fixing sleeve, a threaded sleeve, a spring and a check ring. One end of the handle is provided with a boss, and the other end is provided with a retainer ring; a threaded blind hole is formed in the other end of the fixing sleeve; an inner hole of the threaded sleeve is of a step structure, threads are arranged on the outer circle of the threaded sleeve, the large-aperture end of the inner hole of the threaded sleeve is screwed into the threaded blind hole of the fixing sleeve, the end, provided with the check ring, of the handle penetrates through the inner holes of the fixing sleeve and the threaded sleeve, the end, provided with the boss, of the handle is matched with the end, provided with the opening, of the fixing sleeve, and the spring is sleeved on the outer circle of the handle and fixed in the inner hole of the threaded sleeve. One end of the spring contacts with the bottom of the threaded blind hole of the fixing sleeve, and the other end contacts with the end face of the retainer ring. Under the cooperation of the handle, the fixing sleeve, the threaded sleeve, the check ring and the spring, the handle can stretch out and draw back, the upper cover locking function is completed, operation is easy, and the problems that an existing bolt locking mode is complex in operation and prone to damage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of food machinery, in particular to an elastic locking mechanism for an upper cover of a grater. Background Art

[0002] In existing wire graters, the upper cover is usually fixed by bolt locking. However, this installation method has some obvious defects. First, when opening the upper cover, the operator needs to completely unscrew the bolt out of the screw hole, which is complicated, time-consuming and labor-intensive. Secondly, due to the influence of factors such as friction and torque between the bolt and the screw hole, the bolt is prone to loosening after long-term use, resulting in equipment abnormal noise, bolt damage and other faults. Therefore, it is necessary to propose an improvement to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and propose a design of an elastic locking mechanism for the upper cover of a grater, which solves the problems of complex operation and easy damage of the existing bolt locking method.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An elastic locking mechanism for the upper cover of a grater includes a handle, a fixed sleeve, a screw sleeve, a spring and a retaining ring; one end of the handle is provided with a boss, and the other end is provided with a retaining ring; one end of the fixed sleeve is provided with an opening, and the other end is provided with a threaded blind hole; the inner hole of the screw sleeve is a stepped structure, and the outer circle is provided with threads, and the end of the screw sleeve with a larger inner hole diameter is screwed into the threaded blind hole of the fixed sleeve, and the end of the handle with the retaining ring passes through the inner holes of the fixed sleeve and the screw sleeve, and the end of the handle with the boss matches the end of the fixed sleeve with the opening, and the spring is sleeved on the outer circle of the handle and fixed in the inner hole of the screw sleeve, one end of the spring contacts the bottom of the threaded blind hole of the fixed sleeve, and the other end contacts the end face of the retaining ring. The above technical solution can realize the extension and fixation of the handle by pulling and rotating the handle, and is simple to operate and not easy to damage.

[0006] Furthermore, the handle is mounted on the upper cover support plate, the end of the upper cover support plate is fixedly connected to the upper cover, and the upper cover support plate is also connected to the frame for relative rotation via a rotating shaft; a locking positioning hole is provided on the frame, and the handle can be clamped in the locking positioning hole. When the upper cover needs to be locked, the handle is extended outward and the end is clamped in the locking positioning hole on the frame.

[0007] Furthermore, a threaded hole is provided on the upper cover support plate, and the threaded sleeve is fixed in the threaded hole on the upper cover support plate, so that the handle is installed on the upper cover support plate.

[0008] Furthermore, a pre-tightening nut is provided on the screw sleeve to further fix the screw sleeve.

[0009] Furthermore, a rotating shaft fixing hole is provided on the frame, and the rotating shaft is installed in the rotating shaft fixing hole to realize the connection between the upper cover support plate and the frame, and can rotate relative to the frame.

[0010] Furthermore, a retaining ring installation groove is provided at the other end of the handle, and the retaining ring is fixed in the retaining ring installation groove of the handle.

[0011] Furthermore, a reinforcing plate is provided on the frame, a gap adjustment screw hole is provided on the reinforcing plate, an adjusting bolt is installed on the gap adjustment screw hole, a positioning shaft is provided on the upper cover support plate, when the upper cover is in a locked state, the positioning shaft falls on the adjusting bolt, and the adjusting bolt presses the positioning shaft upward to make the upper cover more secure.

[0012] Furthermore, the reinforcing plate is located below the rotating shaft.

[0013] Furthermore, the rotating shaft is located below the handle.

[0014] Furthermore, the boss is a boss or a trapezoidal boss.

[0015] Technical effects of the utility model:

[0016] Compared with the prior art, the elastic locking mechanism of the upper cover of the grater of the utility model enables the handle to be extended and retracted under the coordinated cooperation of the handle, the fixing sleeve, the screw sleeve, the retaining ring and the spring. When the handle is retracted, it can also be stuck at the end of the fixing sleeve. By rotating the handle to align it with the opening of the fixing sleeve, and then releasing the handle, the handle can be extended outward. This operation method is not only simple, but also not easy to cause damage to the handle or the fixing sleeve, which solves the problems of complex operation and easy damage in the existing bolt locking method. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structural principle of the elastic locking mechanism of the upper cover of the grater of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the handle and retaining ring of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixed sleeve of the utility model;

[0020] Figure 4 This is a schematic diagram of the unlocked state of the elastic locking mechanism of the upper cover of the grater of the utility model;

[0021] Figure 5 This is a schematic diagram of the locking state of the elastic locking mechanism of the upper cover of the grater of the utility model;

[0022] Figure 6This is a schematic diagram of the frame structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the elastic locking mechanism of the upper cover and the frame installation structure of the utility model grater;

[0024] Figure 8 For this utility model Figure 7 Main view (partial structure).

[0025] In the figure, 1, handle; 2, fixing sleeve; 3, screw sleeve; 4, spring; 5, retaining ring; 6, upper cover support plate; 7, upper cover; 8, rotating shaft; 9, frame; 10, reinforcement plate; 11, adjusting bolt; 12, positioning shaft; 13, pre-tightening nut; 901, locking positioning hole; 902, rotating shaft fixing hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is clearly and completely described below in conjunction with the accompanying drawings of the specification.

[0027] Embodiment 1:

[0028] like Figure 1 As shown, the elastic locking mechanism of the upper cover of a grater machine involved in this embodiment includes a handle 1, a fixing sleeve 2, a screw sleeve 3, a spring 4 and a retaining ring 5.

[0029] like Figure 2 As shown, the handle 1 has a rectangular boss at one end and a retaining ring installation groove at the other end, and the retaining ring 5 is fixed in the retaining ring installation groove of the handle 1. Figure 3 As shown, the fixing sleeve 2 has a rectangular opening at one end and a threaded blind hole at the other end. Figure 1 As shown, the inner hole of the screw sleeve 3 is a stepped structure, and the outer circle is provided with threads. The end of the screw sleeve 3 with a larger inner hole diameter is screwed into the threaded blind hole of the fixed sleeve 2. At the same time, a pre-tightening nut 13 (such as Figure 7 As shown), the stability of the screw sleeve 3 is improved. Figure 1 As shown, the end of the handle 1 with the retaining ring 5 passes through the inner holes of the fixing sleeve 2 and the screw sleeve 3, and the end of the handle 1 with the rectangular boss matches the end of the fixing sleeve 2 with the rectangular opening. The spring 4 is sleeved on the outer circle of the handle 1 and fixed in the inner hole of the screw sleeve 3. One end of the spring 4 contacts the bottom of the threaded blind hole of the fixing sleeve 2, and the other end contacts the end face of the retaining ring 5. Rotate the handle 1 to align the rectangular boss of the handle 1 with the rectangular opening of the fixing sleeve 2, release your hand, and under the action of the elastic force, the handle 1 extends along the rectangular opening, so that the end of the handle 1 with the retaining ring 5 extends away from the screw sleeve 3, so that the locking mechanism is in a locked state, as shown in FIG. Figure 5Conversely, the handle 1 can be pulled to disengage its rectangular boss from the rectangular opening of the fixing sleeve 2, and then the handle 1 can be rotated to make the rectangular boss of the handle 1 stuck outside the rectangular opening of the fixing sleeve 2, so that the end of the handle 1 with the retaining ring 5 can be retracted toward the direction close to the screw sleeve 3, so that the locking mechanism is in the unlocked state, as shown in FIG. Figure 4 shown.

[0030] like Figure 7 and 8 As shown, the upper cover support plate 6 is provided with a threaded hole, and the screw sleeve 3 is fixed in the threaded hole on the upper cover support plate 6, so that the handle 1 is installed on the upper cover support plate 6. The end of the upper cover support plate 6 is fixedly connected to the upper cover 7, and the upper cover support plate 6 is also connected to the frame 9 for relative rotation through the rotating shaft 8. Figure 6 As shown, the frame 9 is provided with a locking positioning hole 901, and the handle 1 can be stuck in the locking positioning hole 901. When the upper cover support plate 6 rotates around the rotating shaft 8 and the position is adjusted, the handle 1 can be stuck in the locking positioning hole 901 on the frame 9 by extending the end of the handle 1 provided with the retaining ring 5 away from the screw sleeve 3, thereby completing the locking of the upper cover 7.

[0031] like Figure 6 As shown, the frame 9 is provided with a shaft fixing hole 902, and the shaft 8 is installed in the shaft fixing hole 902, so as to realize the connection between the upper cover support plate 6 and the frame 9, and can rotate relative to the frame 9. Specifically, a bushing is provided on the upper cover support plate 6, and the shaft 8 is fixed in the shaft fixing hole 902 on the frame 9 through the bushing.

[0032] like Figure 6 As shown, the frame 9 is provided with a reinforcing plate 10, which is located below the rotating shaft 8, and the rotating shaft 8 is located below the handle 1. The reinforcing plate 10 is provided with a gap adjustment screw hole, and an adjustment bolt 11 is installed on the gap adjustment screw hole. The upper cover support plate 6 is provided with a positioning shaft 12. When the upper cover 7 is locked, the positioning shaft 12 falls on the adjustment bolt 11. Figure 7 As shown, the adjusting bolt 11 can be adjusted to press the positioning shaft 12 upward, thereby further locking the upper cover 7 firmly.

[0033] Working principle: When opening the upper cover 7 of the utility model, the handle 1 of the locking mechanism is pulled outward to disengage the rectangular boss of the handle 1 from the rectangular opening of the fixing sleeve 2, and then the handle 1 is rotated, the outer circle of the rectangular boss is clamped at the outer end of the rectangular opening of the fixing sleeve 2, and the upper cover 7 can be opened.

[0034] When the upper cover 7 is locked, the upper cover 7 is flipped into place, the handle 1 is rotated by hand to align the rectangular boss of the handle 1 with the rectangular opening of the fixing sleeve 2, and the hand is released. Under the action of elastic force, the handle 1 extends out along the rectangular opening, and the end of the handle 1 is stuck in the locking positioning hole 901 on the frame 9, and the upper cover 7 is locked. Figure 7 shown.

[0035] If the upper cover 7 is locked and shakes, and the positioning is inaccurate, the adjustment bolt 11 can be adjusted to offset the shaking gap after locking, so that the upper cover 7 is locked firmly.

[0036] The above-mentioned specific implementation methods are only specific cases of the present utility model. The patent protection scope of the present utility model includes but is not limited to the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field in accordance with the claims of the present utility model shall fall within the patent protection scope of the present utility model.

Claims

1. An elastic locking mechanism for a grater cover, characterized in that: The invention comprises a handle (1), a fixing sleeve (2), a screw sleeve (3), a spring (4) and a retaining ring (5); one end of the handle (1) is provided with a boss, and the other end is provided with a retaining ring (5); one end of the fixing sleeve (2) is provided with an opening, and the other end is provided with a threaded blind hole; the inner hole of the screw sleeve (3) is a stepped structure, and the outer circle is provided with threads; the end of the inner hole of the screw sleeve (3) with a larger hole diameter is screwed into the threaded blind hole of the fixing sleeve (2); the end of the handle (1) with the retaining ring (5) passes through the inner holes of the fixing sleeve (2) and the screw sleeve (3); the end of the handle (1) with the boss matches the end of the fixing sleeve (2) with the opening; the spring (4) is sleeved on the outer circle of the handle (1) and fixed in the inner hole of the screw sleeve (3); one end of the spring (4) contacts the bottom of the threaded blind hole of the fixing sleeve (2), and the other end contacts the end face of the retaining ring (5).

2. The elastic locking mechanism for the upper cover of the grater according to claim 1, characterized in that: The handle (1) is mounted on an upper cover support plate (6); the end of the upper cover support plate (6) is fixedly connected to the upper cover (7); the upper cover support plate (6) is also connected to the frame (9) for relative rotation via a rotating shaft (8); a locking positioning hole (901) is provided on the frame (9), and the handle (1) can be clamped in the locking positioning hole (901).

3. The elastic locking mechanism for the upper cover of the grater according to claim 2, characterized in that: The upper cover support plate (6) is provided with a threaded hole, and the screw sleeve (3) is fixed in the threaded hole on the upper cover support plate (6).

4. The elastic locking mechanism for the upper cover of the grater according to claim 2, characterized in that: The frame (9) is provided with a rotating shaft fixing hole (902), and the rotating shaft (8) is installed in the rotating shaft fixing hole (902).

5. The elastic locking mechanism for the upper cover of the grater according to claim 2, characterized in that: A reinforcing plate (10) is arranged on the frame (9), a gap adjustment screw hole is provided on the reinforcing plate (10), an adjustment bolt (11) is installed on the gap adjustment screw hole, a positioning shaft (12) is arranged on the upper cover support plate (6), and when the upper cover (7) is in a locked state, the positioning shaft (12) falls on the adjustment bolt (11).

6. The elastic locking mechanism for the upper cover of the grater according to claim 5, characterized in that: The reinforcing plate (10) is located below the rotating shaft (8).

7. The elastic locking mechanism for the upper cover of the grater according to claim 6, characterized in that: The rotating shaft (8) is located below the handle (1).

8. The elastic locking mechanism for the upper cover of the grater according to claim 1, characterized in that: A pre-tightening nut (13) is arranged on the threaded sleeve (3).

9. The elastic locking mechanism for the upper cover of the grater according to claim 1, characterized in that: A retaining ring installation groove is provided at the other end of the handle (1), and the retaining ring (5) is fixed in the retaining ring installation groove of the handle (1).

10. The elastic locking mechanism for the upper cover of the grater according to any one of claims 1 to 9, characterized in that: The boss is a boss or a trapezoidal boss.

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