Holding and grabbing device and access hole assembly

Abstract

The utility model belongs to the technical field of access holes, and particularly relates to a holding and grabbing device and an access hole assembly. Wherein the clasping device comprises two clasping rods and a rotating shaft, and after the two clasping rods intersect, the two clasping rods are rotationally connected through the rotating shaft at the intersection point; the two holding rods are both provided with holding claws used for holding the upper cover of the access hole. When the holding and grabbing device is used, the gravity of the access hole upper cover is larger when the handheld end of the holding and grabbing rod is lifted upwards, and the inward clamping force of the access hole upper cover is larger, so that the safety and the convenience of operation can be fully ensured through the use of the holding and grabbing device. According to the access hole assembly, the access hole upper cover can be conveniently opened through the clasping device, and the access hole upper cover can be aligned to the notch without edge alignment.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection openings, and more particularly relates to a grasping device and an inspection opening component. Background Art

[0002] In the prior art, access hatches are opened with a crowbar, often accompanied by the vibration of a sledgehammer. Each opening can cause varying degrees of damage to the foundation and the hatch. Furthermore, the crowbar cannot hold the hatch securely, requiring manual removal after prying it open, which is time-consuming and labor-intensive, and can cause unnecessary collisions.

[0003] To this end, a tool that can be well adapted to the inspection port cover is needed to adaptively open the inspection port cover, avoid damage caused by the crowbar, and prevent people from being injured by bumps. Summary of the Invention

[0004] In order to solve the technical problems mentioned in the background technology, the utility model provides a grasping device and an inspection port. The grasping device has grasping claws that can be well adapted to the upper cover of the inspection port, and the grasping rod of the grasping device is lifted up, which not only forms an upward lifting force, but also forms a clamping force on the upper cover of the inspection port, resulting in an effect that the heavier the upper cover of the inspection port, the greater the clamping force.

[0005] As one aspect of the present invention, a claw device is provided, and the technical solution adopted is:

[0006] A grasping device comprises two grasping rods and a rotating shaft. After the two grasping rods cross, they are rotationally connected at the intersection using the rotating shaft; the two grasping rods are both provided with grasping claws for grasping the upper cover of the inspection port.

[0007] During operation, the two grab bars intersect to form a scissor-like shape, using claws to grasp the access cover. One end of the grab bar is connected to the claw, and the other end is located on the other side of the intersection. When the other end of the grab bar is lifted, the upward force, after passing through the rotating shaft, is used to balance the weight of the access cover and provide clamping force. The greater the weight of the access cover, the greater the clamping force. Therefore, the use of this grab device can fully ensure the safety of operation.

[0008] In the above-mentioned grasping device, the grasping rod includes a cross-connecting section and a claw connecting section, and the angle between the cross-connecting section and the claw connecting section is (90° to 180°).

[0009] When the claws grasp the access cover, a claw connection section is provided to facilitate this action. The angle of the claw connection section is set based on the claws being in a vertical position during grasping. Generally, the cross-connection section is tilted upward when the claws are in a vertical position, so the angle between the cross-connection section and the claw connection section is between 90° and 180°.

[0010] In the above-mentioned grasping device, the intersection point of the two grasping rods is located at the cross-connecting section.

[0011] In the above-mentioned grasping device, one end of the claw connecting section is connected to the cross-connecting section, and the other end of the claw connecting section is connected to the claw.

[0012] In the above-mentioned grasping device, the grasping claw includes at least one grasping finger, and each of the grasping fingers is provided with a groove for clamping the notch of the inspection port cover.

[0013] Of course, if the gripping claw has only one gripping finger, it needs to be wider to ensure stability during the lifting process. In order to reduce the use of materials, a notch can be opened on the wider gripping finger to achieve the purpose of stably lifting the inspection port cover.

[0014] At the same time, the grooves provided on the grabbing fingers can cooperate well with the notches of the inspection port cover, ensuring that the notches of the inspection port cover are stuck, thereby improving operational safety.

[0015] In the above-mentioned grasping device, the cross-connecting section includes a grasping telescopic rod, and the grasping telescopic rod is arranged at the other end of the cross-connecting section.

[0016] The other end of the cross-connection section is away from the end of the claw connection section, and is located on both sides of the rotating shaft with the claw. The arrangement of the grabbing telescopic rod can effectively extend the length of the force arm above the rotating shaft, and after use, it can be extended and retracted for easy carrying and storage.

[0017] As another aspect of the present invention, an inspection port assembly is also provided, comprising the above-mentioned grasping device.

[0018] The above-mentioned inspection port assembly also includes an inspection port cover and an inspection base, and the inspection port cover is covered on the inspection base; a group of relatively parallel edges of the inspection port cover are provided with notches that are adapted to be engaged with the claws, or two groups of relatively parallel edges of the inspection port cover are provided with notches that are adapted to be engaged with the claws.

[0019] The inspection hatch cover is quadrilateral, which can be rectangular or square. In the case of a square, notches are provided on the edges of two parallel sides. Notches can also be provided on the edges of two pairs of mutually parallel sides. These notches mate with the grooves of the claws, and during use, the notches snap into the grooves, allowing the inspection hatch cover to be lifted via the notches.

[0020] In the above-mentioned inspection port assembly, a notch is also provided on the vertical frame of the inspection base, and the position of the notch provided on the inspection base corresponds to the position of the notch provided on the inspection port cover; the vertical frame of the inspection base and the vertical frame of the inspection port cover are both inclined and form an eight-shaped gap.

[0021] The position of the notch provided on the inspection base corresponds to the position of the notch provided on the inspection port cover, so as to allow the grasping fingers to be inserted smoothly.

[0022] The setting of the figure-eight gap is to leave enough space for the grabbing fingers when they are inserted, and also to prevent the inspection port cover and the inspection base from squeezing and interfering with each other during the opening process, and the gravel between the two will fall more easily, so that the gravel will not block the opening.

[0023] Among them, the figure-eight gap can be that the inspection base is gradually inclined inward from bottom to top, and the inspection port cover is gradually inclined inward from top to bottom.

[0024] In the above-mentioned inspection port assembly, the inspection port cover and the inspection base are both square, and the four sides of the vertical frame of the inspection base are provided with notches, and when the inspection port cover is closed on the inspection base, the notches of the vertical frame of the inspection base can correspond to the notches of the inspection port cover.

[0025] That is, the vertical frame of the inspection port cover may be provided with notches on a pair of parallel sides, while the vertical frame of the inspection base is provided with notches on all four sides. In this arrangement, there is no need to align the inspection port cover with the notches.

[0026] In the above-mentioned inspection port assembly, the size of the grabbing fingers can pass through the gap of the inspection port cover, the gap of the inspection base, and grab the gap of the inspection port cover in the eight-shaped gap.

[0027] In the above-mentioned inspection port assembly, the notch provided on the inspection port cover is exposed on the upper surface. The structure exposed on the upper surface is provided so that the grabbing fingers can be directly inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of a grabbing device according to one embodiment of the present invention;

[0030] Figure 2 is an exploded view of an access opening assembly according to one embodiment of the present invention;

[0031] Figure 3 yes Figure 2 The diagram shows the state of the inspection port assembly grasping device grasping the inspection port cover.

[0032] The following are the descriptions of the reference numerals:

[0033] 1. Grabbing rod; 101. Cross-connecting section; 102. Claw connecting section; 1021. Grabbing telescopic rod; 2. Rotating shaft; 3. Claw; 301. Grabbing fingers; 302. Groove; 4. Inspection port cover; 401. Notch; 402. Vertical frame; 5. Inspection base; 501. Notch; 502. Vertical frame. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, as one aspect of the utility model, a grasping device is provided, including two grasping rods 1 and a rotating shaft 2. After the two grasping rods 1 are crossed, they are rotatably connected at the intersection using the rotating shaft 2; both of the grasping rods 1 are provided with grasping claws 3 for grasping the inspection port cover 4.

[0036] During use, the two grab bars 1 intersect to form a scissor-like shape, and the claws 3 are used to grasp the inspection port cover. One end of the grab bar 1 is connected to the claw 3, and the other end of the grab bar 1 is located on the other side of the intersection. When the other end of the grab bar 1 is lifted, the lifting force passes through the rotating shaft 2, and part of it is used to balance the weight of the inspection port cover, and part of it is used to provide clamping force for the inspection port cover. The greater the weight of the inspection port cover, the greater the clamping force. Therefore, the use of this grabbing device can fully ensure the safety of operation.

[0037] As an embodiment of the present invention, the grabbing rod 1 includes a cross-connecting section 101 and a claw connecting section 102, and the angle formed by the cross-connecting section 101 and the claw connecting section 102 is (90︒~180︒).

[0038] To facilitate gripping of the inspection hatch cover by the claws 3, a claw connecting section 102 is provided. The angle of the claw connecting section 102 is determined based on the vertical position of the claws 3 during gripping. Typically, when the claws 3 are vertical, the cross-connecting section 101 is tilted upward, resulting in an angle between the cross-connecting section 101 and the claw connecting section 102 of 90° and 180°.

[0039] As an embodiment of the present invention, the intersection of the two grab bars 1 is located at the cross-connection section 101 .

[0040] As an embodiment of the present invention, one end of the claw connecting section 102 is connected to the cross-connecting section 101 , and the other end of the claw connecting section 102 is connected to the claw 3 .

[0041] As an embodiment of the present invention, the claw 3 includes two grasping fingers 301, and each of the grasping fingers 301 is provided with a groove 302 for clamping the notch of the inspection port cover.

[0042] As an embodiment of the present invention, the number of gripping fingers 301 of the gripping claw 3 may be one or more, depending on the width of the object to be gripped.

[0043] Of course, when the number of the gripping fingers 301 of the gripping claw 3 is one, a wider width is required to ensure stability during the lifting process. In order to reduce the use of materials, a gap can be opened on the wider gripping fingers 301 to achieve the purpose of stably lifting the inspection port cover.

[0044] At the same time, the groove 302 provided on the grabbing finger 301 can cooperate well with the notch of the inspection port cover, ensuring that the notch of the inspection port cover is clamped, thereby improving operational safety.

[0045] As an embodiment of the present invention, the cross-connection section 101 also includes a grasping telescopic rod 1021 , and the grasping telescopic rod 1021 is arranged at the other end of the cross-connection section 101 .

[0046] The other end of the cross-connecting section 101 is located away from the claw connecting section 102, and is located on either side of the rotating shaft 2 along with the claw 3. The provision of the grabbing telescopic rod 1021 effectively extends the length of the lever above the rotating shaft 2, and after use, it can be retracted for easy carrying and storage.

[0047] As another aspect of the present invention, an inspection port assembly is also provided, comprising Figure 1 The gripping device in the Figure 2 As shown: the inspection port assembly also includes an inspection port cover 4 and an inspection base 5, and the inspection port cover 4 is covered on the inspection base 5; a group of relatively parallel edges of the inspection port cover 4 are provided with notches 401 that are adapted to be engaged with the claws 3, or two groups of relatively parallel edges of the inspection port cover 4 are provided with notches 401 that are adapted to be engaged with the claws 3.

[0048] The inspection port cover 4 is quadrilateral, which can be rectangular or square. If it is rectangular, notches 401 are provided on the edges of two parallel sides of the rectangle. The notches 401 match the grooves 302 of the claws 3 in a concave-convex manner. During use, the notches 401 are locked into the grooves 302, allowing the inspection port cover 4 to be lifted via the notches 401. If it is square, notches 401 can be provided on the edges of a pair of mutually parallel sides of the square, and obviously, notches 401 can also be provided on the edges of both pairs of mutually parallel sides.

[0049] As an embodiment of the present invention, a notch 501 is also provided on the vertical frame 502 of the inspection base 5, and the position of the notch 501 provided on the inspection base 5 corresponds to the position of the notch 401 provided on the inspection port cover 4; the vertical frame 502 of the inspection base 5 and the vertical frame 402 of the inspection port cover 4 are both inclined and form an eight-shaped gap.

[0050] The position of the notch 501 on the inspection base 5 corresponds to the position of the notch 401 on the inspection cover 4 to facilitate the smooth insertion of the gripping fingers 301. The splayed gap is designed to provide ample space for the gripping fingers 301 when inserted, and to prevent the inspection cover 4 and the inspection base 5 from squeezing or interfering with each other during opening. Furthermore, any gravel between the two will more easily fall out, preventing the cover from becoming blocked and preventing it from opening.

[0051] The figure eight-shaped gap can be that the vertical frame 502 of the inspection base 5 is gradually inclined inward from bottom to top, while the vertical frame 402 of the inspection port cover 4 is gradually inclined inward from top to bottom.

[0052] As an embodiment of the present invention, the size of the grabbing finger 301 can pass through the gap 401 of the inspection port cover 4 and the gap 501 of the inspection base 5, and can grab the gap 401 of the inspection port cover 4 in the eight-shaped gap.

[0053] As an embodiment of the present invention, the notch 401 provided on the inspection port upper cover 4 is exposed on the upper surface. The structure exposed on the upper surface is provided so that the gripping fingers 301 can be directly inserted therein.

[0054] like Figure 3 As shown, it is adopted Figure 1 The diagram shows the state of the grasping device grasping the inspection port cover.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A grasping device, characterized in that: The utility model comprises two grab bars and a rotating shaft. After the two grab bars cross, the two grab bars are rotationally connected at the intersection by using the rotating shaft. The two grab bars are both provided with claws for grasping the upper cover of the inspection port. The grab bars include a cross-connecting section, and the intersection of the two grab bars is located in the cross-connecting section.

2. The grasping device according to claim 1, characterized in that: The grabbing rod further includes a claw connecting section, and the angle formed between the cross connecting section and the claw connecting section is 90° to 180°.

3. The grasping device according to claim 2, characterized in that: One end of the claw connecting section is connected to one end of the cross-connecting section, and the other end of the claw connecting section is connected to the claw.

4. The grasping device according to claim 1, characterized in that: The gripping claw includes at least one gripping finger, and each of the gripping fingers is provided with a groove for clamping the notch of the inspection port upper cover.

5. The grasping device according to claim 1, characterized in that: The cross-connection section includes a grasping telescopic rod, and the grasping telescopic rod is arranged at the other end of the cross-connection section.

6. An inspection port assembly, characterized in that: The invention comprises the grasping device according to any one of claims 1 to 5.

7. The access opening assembly according to claim 6, wherein: It also includes an inspection port cover and an inspection base, wherein the inspection port cover is covered on the inspection base; a group of relatively parallel edges of the inspection port cover are provided with notches that are adapted to be engaged with the claws, or two groups of relatively parallel edges of the inspection port cover are provided with notches that are adapted to be engaged with the claws.

8. The access opening assembly according to claim 7, wherein: A notch is also provided on the vertical frame of the inspection base, and the position of the notch provided on the inspection base corresponds to the position of the notch provided on the inspection port cover; the vertical frame of the inspection base and the vertical frame of the inspection port cover are both inclined and form an eight-shaped gap.

9. The access opening assembly according to claim 8, wherein: The inspection port cover and the inspection base are both square, and the four sides of the vertical frame of the inspection base are provided with notches, and when the inspection port cover is closed onto the inspection base, the notches of the vertical frame of the inspection base can correspond to the notches of the inspection port cover.

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