Auxiliary opening device for inspection well cover
By designing a manhole cover auxiliary opening device that includes connecting rods, hooks and bases, the manhole cover can be easily opened using the lever principle, solving the problems of complex structure and inconvenient portability of existing equipment, and achieving rapid, stable and economical manhole cover opening.
Patent Information
- Application Number
- CN202422414609.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing manhole cover opening equipment has a complex structure and is inconvenient to use and carry. It is especially difficult to open in harsh environments and has a long preparation time.
An auxiliary opening device including a connecting rod, a hook and a base is designed. The lever principle is used to penetrate deep into the manhole cover through the hook and press the connecting rod to rotate, so as to achieve easy opening of the manhole cover.
The device is simple in structure, low in cost, easy to carry, easy to disassemble, can quickly open the manhole cover, reduce preparation time, and the support and arc groove design enhance stability and safety.
Smart Images

Figure CN223118086U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road maintenance equipment, and particularly relates to a manhole cover auxiliary opening device. Background Technique
[0002] During the process of road maintenance, it is very difficult to open the manhole covers in special sections. For example, the environment where the manhole covers are located is relatively harsh. After the manhole covers are not opened for a certain period of time, they are often integrated with the well edge due to rust, resulting in the inability to open the manhole covers; especially in winter, the surrounding of the manhole covers is covered by thick ice, and it is by no means easy to open them.
[0003] However, the existing opening devices in the prior art, such as the prior art with the publication number of CN106082051A, although they can achieve the smooth opening of the manhole covers, due to their own structural reasons, they are more troublesome in the process of use and carrying, and only the preparatory work in the early stage will consume a lot of time. Content of the Utility Model
[0004] The purpose of the utility model is to provide a manhole cover auxiliary opening device to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a manhole cover auxiliary opening device, including a connecting rod, one end of the connecting rod is provided with a first pin seat, and after a first pin rod is passed through the first pin seat, a hook pin is pivotally connected in the first pin seat; a second pin seat is also provided on the connecting rod, and a base is rotatably installed on the second pin seat after a second pin rod is passed through the second pin seat.
[0006] As a preferred technical solution of the utility model: a support member is also provided on the connecting rod; wherein, after the connecting rod is pressed, the end of the support member away from the connecting rod abuts against the hook.
[0007] As a preferred technical solution of the utility model: the support member contacts the hook through an arc groove provided.
[0008] As a preferred technical solution of the utility model: one end of the hook is provided with a hook body, and the other end of the hook is provided with a pin plate.
[0009] As a preferred technical solution of the utility model: a connection hole is also provided at the end of the connecting rod away from the first pin seat.
[0010] As a preferred technical solution of the utility model: the connection hole is connected to a crowbar provided.
[0011] With the above technical solution, the beneficial effects of the present utility model are as follows: When one end of the hook penetrates into the inside of the well cover, press one end of the connecting rod. At this time, the connecting rod rotates on the base, and then uses the lever principle to pry open one end of the well cover, thereby facilitating the user to completely open the well cover through the pried area. Based on this, the device can easily pry open the well cover by rotating the connecting rod on the base. Therefore, compared with the prior art, firstly, the device has a simple structure, low production and use costs; secondly, it is convenient to carry and disassemble, easy to carry and maintain at the same time; thirdly, the preparation time when using the device is short, and it can be used directly by inserting it and then pressing down the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is an exploded schematic view of the main structure of the present utility model;
[0013] Figure 2 is a schematic view of the main structure of the connecting rod of the present utility model;
[0014] Figure 3 is a schematic view of the main structure of the hook of the present utility model;
[0015] Figure 4 is a schematic view of the structure of the present utility model when in use.
[0016] In the figure: 1. Connecting rod; 2. Pry bar; 3. Base; 4. First pin rod; 5. Hook; 6. Second pin rod; 7. Connecting hole; 8. Support member; 9. First pin seat; 10. Arc groove; 11. Second pin seat; 12. Hook body; 13. Pin plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0018] Please refer to Figures 1-4, an embodiment provided by the present utility model: an auxiliary manhole cover opening device, including a connecting rod 1. One end of the connecting rod 1 is provided with a first pin seat 9, and after a first pin rod 4 is passed through the first pin seat 9, a hook 5 provided is pivotally connected within the first pin seat 9; a second pin seat 11 is further provided on the connecting rod 1, and a base 3 provided is rotatably installed on the second pin seat 11 by passing a second pin rod 6 through the second pin seat 11.
[0019] In summary, when one end of the hook 5 extends into the manhole cover, press one end of the connecting rod 1. At this time, the connecting rod 1 rotates on the base 3, and then uses the lever principle to pry open one end of the manhole cover, thereby facilitating the user to completely open the manhole cover through the pried area. Based on this, the device can easily pry open the manhole cover by rotating the connecting rod 1 on the base 3. Therefore, compared with the prior art, firstly, the device has a simple structure, low production and use costs; secondly, it is convenient to carry and disassemble, which is convenient to carry and maintain at the same time; thirdly, the preparation time during the use of the device is short, and it can be used directly by inserting and pressing down the connecting rod.
[0020] Furthermore, since a support member 8 is further provided on the connecting rod 1; wherein, after the connecting rod 1 is pressed, the end of the support member 8 away from the connecting rod 1 abuts against the hook 5. Therefore, when one end of the connecting rod 1 is lifted until the support member 8 abuts against the hook 5, the pressing stroke of the connecting rod 1 can be shortened, and at the same time, the support member 8 can be used to promote the upward movement of the hook 5; in addition, during the opening process of the manhole cover, the acting force is basically concentrated on the support member 8, reducing the force on the first pin rod 4, thereby protecting the first pin rod 4.
[0021] Even further, since the support member 8 contacts the hook 5 through an arc groove 10 provided, when the arc groove 10 contacts the hook 5, the problem of the manhole cover opening failure caused by the sliding of the hook 5 can be reduced.
[0022] Among them, a hook body 12 is provided at one end of the hook 5. Therefore, the hook body 12 can be used to extend into the manhole cover to expand the contact area with the manhole cover, thereby reducing the phenomenon of the hook 5 slipping during the opening process of the manhole cover. At the same time, a pin plate 13 is provided at the other end of the hook 5, which is convenient for the hook 5 to be connected to the first pin seat 9, and the pin plate 13 is plate-shaped, so that the hook 5 can rotate stably and reliably within the first pin seat 9.
[0023] On the basis of the above solution, since a connection hole 7 is further provided at one end of the connecting rod 1 away from the first pin seat 9; specifically, the connection hole 7 is connected to a crowbar 2 provided. Based on this, the manhole cover can be easily opened by pressing the crowbar 2. At the same time, the setting of the connection hole 7 facilitates the separation of the crowbar 2 from the connecting rod 1.
[0024] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.
Claims
1. An auxiliary manhole cover opening device, characterized in that: It includes a connecting rod (1). One end of the connecting rod (1) is provided with a first pin seat (9). After a first pin rod (4) passes through the first pin seat (9), a hook (5) is pivotally connected within the first pin seat (9). The connecting rod (1) is further provided with a second pin seat (11). After a second pin rod (6) passes through the second pin seat (11), a base (3) is rotatably mounted on the second pin seat (11).
2. The manhole cover auxiliary opening device according to claim 1, characterized in that: The connecting rod (1) is further provided with a support member (8). Among them, after the connecting rod (1) is pressed, one end of the support member (8) away from the connecting rod (1) abuts against the hook (5).
3. The manhole cover auxiliary opening device according to claim 2, characterized in that: The support member (8) contacts the hook (5) through an arc groove (10) provided.
4. The manhole cover auxiliary opening device according to claim 3, characterized in that: One end of the hook (5) is provided with a hook body (12), and the other end of the hook (5) is provided with a pin plate (13).
5. An auxiliary manhole cover opening device according to any one of claims 1-4, characterized in that: The end of the connecting rod (1) away from the first pin seat (9) is further provided with a connection hole (7).
6. The manhole cover auxiliary opening device according to claim 5, characterized in that: The connection hole (7) is connected to a crowbar (2) provided.
Citation Information
Patent Citations
Device for efficiently opening lid of inspection well
CN106082051A