Fine sand sieving device for long jump sports sandpit

Abstract

The fine sand sieving device comprises a base and a sieve frame, the sieve frame is arranged at the top of the base in a sliding mode, a sieve plate is arranged at the bottom of the sieve frame in a rotating mode, a driving mechanism is arranged between the base and the sieve frame, one side of the sieve plate is fixedly connected with a handle, and the other side of the sieve plate is fixedly connected with the handle. The front side and the rear side of the grip are respectively provided with a slotted bolt in an elastic sliding mode. The sand screening device relates to the technical field of sand screening. According to the fine sand sieving device for the sports long jump sandpit, the sieve plate is rotationally arranged at the bottom of the sieve frame, and the inserted pin with the groove and the clamping sleeve are arranged between the sieve plate and the sieve frame, so that the sieve plate can be adjusted in a turnover mode through cooperation, and through angle adjustment of the sieve plate, the sieve plate can conveniently and obliquely pour out impurities such as pebbles; and secondly, the synchronous driving frame matched with the slotted plug pins is arranged in the grip, so that the two groups of slotted plug pins are matched with the clamping sleeves, and synchronous operation can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening, in particular to a fine sand screening device for a sports long jump sand pit. Background Art

[0002] A sand pit is an indispensable sports facility in long jump. A proper amount of sand is filled inside the sand pit. In order to ensure the fineness of the sand and avoid stone impurities being entrained therein and causing injuries to personnel, the sand is usually finely screened by a sand screening device in the prior art. Although the sand screening device in the prior art can facilitate fine screening of the sand, it is inevitable that there are still some shortcomings in the actual use of the device. For example, the device lacks a convenient cleaning mechanism, so that the impurities trapped in the device will be inconvenient to clean up later. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a fine sand screening device for a sports long jump sand pit, which solves the problem that the device lacks a convenient cleaning mechanism, resulting in inconvenience in subsequent cleaning of impurities trapped in the device.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fine sand screening device for sports long jump sand pits, comprising a base and a screen frame, the screen frame is slidably arranged on the top of the base, a screen plate is rotatably arranged at the bottom of the screen frame, a driving mechanism is arranged between the base and the screen frame, a handle is fixedly connected to one side of the screen plate, the front and rear sides of the handle are elastically slidably provided with slotted pins, the front and rear sides of one side of the screen frame are fixedly connected with a sleeve used in conjunction with the slotted pin, and the inside of the handle is slidably provided with a synchronous drive frame used in conjunction with the slotted pin.

[0005] Preferably, the driving mechanism includes a driving motor, which is fixedly arranged on the top of the base, the top end of the output shaft of the driving motor is fixedly connected to a rotating shaft through a coupling, the front side of the screen frame is fixedly connected to a rectangular ring plate, and the surface of the rotating shaft is fixedly connected to a cam used in conjunction with the rectangular ring plate.

[0006] Preferably, the front and rear sides of the handle are fixedly connected with a sleeve, and the sleeve is fixedly connected to the slotted pin via a return spring.

[0007] Preferably, the front and rear sides of the inner cavity of the grip are provided with slide grooves, the interior of the slide grooves is slidably connected with sliders, and opposite sides of the two sliders are fixedly connected to the front and rear sides of the synchronous drive frame respectively through brackets.

[0008] Preferably, guide grooves are provided on the front and rear sides of the top of the base, guide plates are slidably connected inside the guide grooves, and opposite sides of the two guide plates are fixedly connected to the front and rear sides of the screen frame respectively.

[0009] Preferably, protective plates are fixedly connected to the front and rear sides of the top of the base. Beneficial Effects

[0010] The utility model provides a fine sand screening device for sports long jump sand pits. Compared with the existing technology, the utility model has the following beneficial effects: the utility model rotates the screen plate to set the bottom of the screen frame, and sets a slotted latch and a clamping sleeve between the screen plate and the screen frame, so that the screen plate can be flipped and adjusted through the above cooperation, and through its angle adjustment, it is convenient for the screen plate to tilt and pour impurities such as stones, and secondly, a synchronous driving frame matched with the slotted latch is set inside the handle, so that the cooperation of two sets of slotted latches and clamping sleeves can facilitate synchronous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0012] Figure 2 This is a bottom view of the screen frame structure of the utility model;

[0013] Figure 3 It is a top view of the handle structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the internal structure of the sleeve of the utility model;

[0015] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle A;

[0016] Figure 6 It is a schematic diagram of the slotted latch structure of the utility model.

[0017] In the figure: 1. base; 2. screen frame; 3. screen plate; 4. driving mechanism; 41. driving motor; 42. rotating shaft; 43. rectangular ring plate; 44. cam; 5. handle; 6. slotted latch; 7. ferrule; 8. synchronous driving frame; 9. sleeve; 10. reset spring; 11. slide groove; 12. slider; 13. guide groove; 14. guide plate; 15. protective plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-6The utility model provides a technical solution: a fine sand screening device for a sports long jump sand pit, comprising a base 1 and a screen frame 2, the screen frame 2 is slidably arranged on the top of the base 1, a driving mechanism 4 is arranged between the base 1 and the screen frame 2, the driving mechanism 4 comprises a driving motor 41, the driving motor 41 is fixedly arranged on the top of the base 1, the top end of the output shaft of the driving motor 41 is fixedly connected with a rotating shaft 42 through a coupling, a rectangular ring plate 43 is fixedly connected to the front side of the screen frame 2, a cam 44 used in conjunction with the rectangular ring plate 43 is fixedly connected to the surface of the rotating shaft 42, a guide groove 13 is provided on the front and rear sides of the top of the base 1, a guide plate 14 is slidably connected inside the guide groove 13, and the opposite sides of the two guide plates 14 are respectively fixedly connected to the front and rear sides of the screen frame 2;

[0020] In order to facilitate the sputtering protection of the guide groove 13 , the front side and the rear side of the top of the base 1 are fixedly connected with a protection plate 15 .

[0021] Furthermore, in order to facilitate the cleaning of trapped impurities, a sieve plate 3 is rotatably provided at the bottom of the screen frame 2, and a handle 5 is fixedly connected to one side of the sieve plate 3. The front and rear sides of the handle 5 are elastically slidably provided with a grooved pin 6, and the front and rear sides of one side of the screen frame 2 are fixedly connected with a sleeve 7 used in conjunction with the grooved pin 6. The inside of the handle 5 is slidably provided with a synchronous drive frame 8 used in conjunction with the grooved pin 6, and the front and rear sides of the handle 5 are fixedly connected with a sleeve 9, and the sleeve 9 is fixedly connected to the grooved pin 6 by a reset spring 10. The front and rear sides of the inner cavity of the handle 5 are provided with a slide groove 11, and a slider 12 is slidably connected to the inside of the slide groove 11, and the opposite sides of the two sliders 12 are fixedly connected to the front and rear sides of the synchronous drive frame 8 through brackets.

[0022] When in use, the driving motor 41 drives the rotating shaft 42 and the cam 44 to rotate, and the cam 44 rotates to drive the rectangular ring plate 43 and the screen frame 2 to sieve, and the screen frame 2 drives the screen plate 3 to sieve together, and the screen plate 3 sieves the sand while sieving, and the impurities are trapped on the top of the screen plate 3;

[0023] When cleaning impurities, the operator holds the synchronous drive frame 8 and the handle 5 tightly, and the synchronous drive frame 8 moves to the right under force. The movement of the synchronous drive frame 8 will tighten the two slotted pins 6, and the tightening movement of the slotted pins 6 will disengage the engagement with the sleeve 7, and then the screen plate 3 can be flipped downward.

Claims

1. A fine sand screening device for a sports long jump sand pit, comprising a base (1) and a screen frame (2), wherein the screen frame (2) is slidably arranged on the top of the base (1), and is characterized in that: A sieve plate (3) is rotatably provided at the bottom of the sieve frame (2), a driving mechanism (4) is provided between the base (1) and the sieve frame (2), a handle (5) is fixedly connected to one side of the sieve plate (3), a slotted latch (6) is elastically slidably provided on the front and rear sides of the handle (5), a clamping sleeve (7) matched with the slotted latch (6) is fixedly connected to the front and rear sides of one side of the sieve frame (2), and a synchronous driving frame (8) matched with the slotted latch (6) is slidably provided inside the handle (5).

2. The fine sand screening device for sports long jump sand pit according to claim 1, characterized in that: The driving mechanism (4) comprises a driving motor (41), the driving motor (41) being fixedly arranged on the top of the base (1), the top end of the output shaft of the driving motor (41) being fixedly connected to a rotating shaft (42) via a coupling, the front side of the screen frame (2) being fixedly connected to a rectangular ring plate (43), and the surface of the rotating shaft (42) being fixedly connected to a cam (44) used in conjunction with the rectangular ring plate (43).

3. The fine sand screening device for sports long jump sand pit according to claim 1, characterized in that: The front and rear sides of the handle (5) are both fixedly connected with a sleeve (9), and the sleeve (9) is fixedly connected to the slotted latch (6) via a return spring (10).

4. The fine sand screening device for sports long jump sand pit according to claim 1, characterized in that: The front and rear sides of the inner cavity of the handle (5) are provided with a slide groove (11), the interior of the slide groove (11) is slidably connected with a slider (12), and the opposite sides of the two sliders (12) are fixedly connected to the front and rear sides of the synchronous drive frame (8) through brackets.

5. The fine sand screening device for sports long jump sand pit according to claim 1, characterized in that: The front and rear sides of the top of the base (1) are both provided with guide grooves (13), the interior of the guide grooves (13) is slidably connected with guide plates (14), and opposite sides of the two guide plates (14) are fixedly connected to the front and rear sides of the screen frame (2), respectively.

6. The fine sand screening device for sports long jump sand pit according to claim 1, characterized in that: Protective plates (15) are fixedly connected to the front and rear sides of the top of the base (1).

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