Anti-pinch safe steel grating

Abstract

The utility model discloses an anti-pinch safe steel grating, which relates to the technical field of steel gratings and comprises a steel grating mounting frame, a steel grating lining is rotatably mounted in the steel grating mounting frame, a support rod is mounted on any one of the left side and the right side of the steel grating lining in a hinged manner, and a guide groove is formed in the support rod. A limiting pin is movably installed in the guide groove, a limiting part is arranged at the tail end of the guide groove, and the limiting pin is installed on the steel grating installation frame in a matched mode. According to the design scheme, through the design that the supporting rods are hinged to the steel grating lining, when the steel grating lining is opened, the steel grating lining drives the supporting rods to move, the limiting pins move to the tail ends from the head ends of the guide grooves, then the steel grating lining falls back downwards under the action of gravity, and the steel grating lining is opened. And the limiting pin is clamped into the limiting part to fix the supporting rod, so that cleaning personnel do not need to manually fix the supporting rod, the workload of the cleaning personnel is effectively relieved, and the convenience of the product in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel gratings, in particular to a hand-pinching prevention safety steel grating. Background Art

[0002] Steel grating is a steel product made of flat steel that is cross-arranged at a certain interval and cross bars and welded into a square grid in the middle. It is mainly used for ditch covers, steel structure platform plates, steel ladder treads, etc. The cross bars are generally made of twisted square steel.

[0003] In the prior art, when steel gratings are used as canal covers, they need to be opened to regularly clean the canal. The repetitive handling work is rather cumbersome, and the metal edges may injure the user. Therefore, an anti-collapse steel grating is needed to meet people's needs.

[0004] CN 219411166 U discloses an anti-falling steel grating, comprising a steel grating installation frame, a mounting frame fixedly mounted on the bottom side of the steel grating installation frame, a flip steel grating lining rotatably mounted on the inner wall of the steel grating installation frame, a pull ring fixedly mounted on the flip steel grating lining, the flip steel grating lining and the mounting frame are adapted, and the flip steel grating lining and the mounting frame bracket are mounted with a supporting structure, etc. The above steel grating is divided into a flip structure by the arrangement of the steel grating installation frame and the flip support rod, and the steel grating installation frame and the flip steel grating lining cooperate with each other. When cleaning is required, the flip steel grating lining can be propped up by the flip support rod, so that it is convenient for users to clean and avoids the accidental tipping of the flip steel grating lining, thereby improving convenience.

[0005] However, in actual use, it was found that when opening the steel grating to clean the canal, the flip support rods on both sides of the steel grating lining need to be opened respectively to provide stable support for the steel grating lining, which makes the process of fixing the steel grating lining more cumbersome, and the cleaning staff need to hold the steel grating lining all the time when fixing the support rods. Due to the heavy weight of the steel grating lining, it creates an additional burden for the cleaning staff. Utility Model Content

[0006] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a hand-pinch-proof safety steel grating.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a finger-pinching safety steel grating, comprising a steel grating mounting frame, a steel grating lining is rotatably mounted in the steel grating mounting frame, a support rod is hingedly mounted on either side of the steel grating lining, a guide groove is provided on the support rod, a limit pin is movably mounted in the guide groove, a limit portion is provided at the tail end of the guide groove, and the limit pin is cooperatively mounted on the steel grating mounting frame.

[0008] Furthermore, the support rod includes a first support plate, a second support plate is fixedly connected to one side of the first support plate close to the steel grating lining, the size of the second support plate is exactly the same as the first support plate, and a plurality of grooves are provided at the edge of the second support plate.

[0009] Further, the guide groove includes a first guide portion, the right end of the first guide portion is inclined downward, the tail end of the first guide portion is connected to a second guide portion, the second guide portion is inclined toward the upper left, and the tail end of the second guide portion is provided with a limiting portion.

[0010] Furthermore, guide grooves are provided on both the first support plate and the second support plate, and the guide grooves on the first support plate are smaller than the guide grooves on the second support plate.

[0011] Furthermore, the limit pin is inserted into the side wall of the steel grating installation frame, a countersunk head is provided at one end of the limit pin close to the support rod, an anti-slip pin is inserted at one end of the limit pin away from the countersunk head, a gasket is provided between the anti-slip pin and the side wall of the steel grating installation frame, and the gasket is sleeved on the limit pin.

[0012] Furthermore, handles are fixedly installed on the outer walls on both sides of the steel grating installation frame.

[0013] The beneficial effect of the utility model is that the design scheme of the utility model is designed that the support rod is hingedly installed on the steel grating lining. When the steel grating lining is opened, the steel grating lining drives the support rod to move, so that the limit pin moves from the head end to the tail end of the guide groove. Then, the steel grating lining falls downward under the action of gravity, so that the limit pin is clamped into the limit part to fix the support rod. Therefore, there is no need for cleaning personnel to manually fix the support rod, which effectively reduces the workload of cleaning personnel and improves the convenience of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 It is a structural schematic diagram of the guide groove of the utility model.

[0018] In the figure: 1. Steel grating installation frame, 2. Steel grating lining, 3. Support rod, 31. First support plate, 32. Second support plate, 33. Groove, 4. Guide groove, 41. Limiting part, 42. First guide part, 43. Second guide part, 5. Limiting pin, 51. Countersunk head, 6. Anti-drop pin, 7. Gasket, 8. Handle. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0020] according to Figure 1-3 As shown, a finger-pinching-proof safety steel grating comprises a steel grating mounting frame 1, in which a steel grating lining 2 is rotatably mounted, a support rod 3 is hingedly mounted on the left side of the steel grating lining 2, a guide groove 4 is provided on the support rod 3, a limit pin 5 is movably mounted in the guide groove 4, a limit portion 41 is provided at the tail end of the guide groove 4, and the limit pin 5 is cooperatively mounted on the steel grating mounting frame 1.

[0021] In this embodiment, according to Figure 2 As shown, the support rod 3 includes a first support plate 31, and a second support plate 32 is welded to the side of the first support plate 31 close to the steel grating lining 2. The size of the second support plate 32 is exactly the same as that of the first support plate 31. A plurality of groups of grooves 33 are provided at the edge of the second support plate 32. By welding at the grooves 33, the first support plate 31 and the second support plate 32 can be quickly welded together.

[0022] In this embodiment, according to Figure 3 As shown, the guide groove 4 includes a first guide portion 42, the right end of the first guide portion 42 is inclined downward, and the angle between the first guide portion 42 and the bottom edge of the steel grating mounting frame 1 is close to 10 degrees. The tail end of the first guide portion 42 is connected to the second guide portion 43, and the second guide portion 43 is inclined to the upper left, and the angle between the second guide portion 43 and the first guide portion 42 is close to 70 degrees. A limiting portion 41 is provided at the tail end of the second guide portion 43. When the steel grating lining 2 is opened, the steel grating lining 2 drives the support rod 3 to move, and the limiting pin 5 is clamped into the limiting portion 41 after passing through the first guide portion 42 and the second guide portion 43.

[0023] In this embodiment, according to Figure 2As shown, guide grooves 4 are provided on the first support plate 31 and the second support plate 32. The guide grooves 4 on the first support plate 31 are smaller than the guide grooves 4 on the second support plate 32. A countersunk groove structure is formed between the guide grooves 4 on the first support plate 31 and the second support plate 32, thereby preventing the limit pin 5 from escaping from the guide groove 4 to the outside.

[0024] In this embodiment, according to Figure 1 As shown, the limit pin 5 is inserted into the side wall of the steel grating mounting frame 1, and a countersunk head 51 is provided at one end of the limit pin 5 close to the support rod 3, and an anti-drop pin 6 is inserted at the end of the limit pin 5 away from the countersunk head 51, and a gasket 7 is provided between the anti-drop pin 6 and the side wall of the steel grating mounting frame 1, and the gasket 7 is sleeved on the limit pin 5, and the countersunk head 51 of the limit pin 5 is located in the guide groove 4, and the anti-drop pin 6 is used to prevent the limit pin 5 from detaching from the steel grating mounting frame 1.

[0025] In this embodiment, handles 8 are fixedly installed on the outer walls of both sides of the steel grating installation frame 1, so that the staff can carry the steel grating as a whole through the handles 8.

[0026] After that, the lining 2 of the steel grating is opened, and the lining 2 of the steel grating is turned upside down to open. The lining 2 of the steel grating will drive the support rod 3 to move backward, so that the limit pin 5 moves from the head end of the guide groove 4 to the tail end. Then, under the action of gravity, the lining 2 of the steel grating falls back downward, so that the limit pin 5 is clamped into the limit part 41. If you want to close the lining 2 of the steel grating, you need to push the lining 2 of the steel grating upward first to move the limit pin 5 into the second guide part 43, and then press the head end of the support rod 3 downward. Under the action of the lever, the tail end of the support rod 3 rises upward to move the limit pin 5 into the first guide part 42, and then you can slowly close the lining 2 of the steel grating. When the lining 2 of the steel grating is opened, the limit pin 5 will automatically clamp into the limit part 41 to fix the support rod. Therefore, there is no need for the cleaning staff to manually fix the support rod 3, which effectively reduces the workload of the cleaning staff and improves the convenience of product use.

[0027] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A finger-pinching safety steel grating, comprising a steel grating installation frame (1), characterized in that: A steel grating lining (2) is rotatably installed in the steel grating installation frame (1), and a support rod (3) is hingedly installed on either side of the steel grating lining (2). A guide groove (4) is provided on the support rod (3), and a limit pin (5) is movably installed in the guide groove (4). A limit portion (41) is provided at the rear end of the guide groove (4), and the limit pin (5) is mounted on the steel grating installation frame (1).

2. The anti-pinch safety steel grating according to claim 1 is characterized in that: The support rod (3) comprises a first support plate (31), a second support plate (32) being fixedly connected to one side of the first support plate (31) close to the steel grating lining (2), the size of the second support plate (32) being exactly the same as that of the first support plate (31), and a plurality of groups of grooves (33) being provided at the edge of the second support plate (32).

3. The anti-pinch safety steel grating according to claim 2 is characterized in that: The guide groove (4) comprises a first guide portion (42), the right end of the first guide portion (42) is inclined downward, the tail end of the first guide portion (42) is connected to a second guide portion (43), the second guide portion (43) is inclined toward the upper left, and the tail end of the second guide portion (43) is provided with a limiting portion (41).

4. The anti-pinch safety steel grating according to claim 3 is characterized in that: The first support plate (31) and the second support plate (32) are both provided with guide grooves (4), and the guide grooves (4) on the first support plate (31) are smaller than the guide grooves (4) on the second support plate (32).

5. The anti-pinch safety steel grating according to claim 4 is characterized in that: The limit pin (5) is inserted into the side wall of the steel grating installation frame (1), and a countersunk head (51) is provided at one end of the limit pin (5) close to the support rod (3), and an anti-drop pin (6) is inserted at one end of the limit pin (5) away from the countersunk head (51), and a gasket (7) is provided between the anti-drop pin (6) and the side wall of the steel grating installation frame (1), and the gasket (7) is sleeved on the limit pin (5).

6. The anti-pinch safety steel grating according to any one of claims 1 to 5, characterized in that: Handles (8) are fixedly mounted on the outer walls on both sides of the steel grating mounting frame (1).

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