Portable well lid opener

Abstract

The utility model discloses a portable well lid opener, which belongs to the technical field of well lid opening, and comprises a bottom plate and a rod body hinged with the bottom plate, a hinge piece between the rod body and the bottom plate is arranged at one end of the bottom plate, and one end of the rod body close to the hinge piece extends to the outer side of the bottom plate and is provided with a hook. And a spring is connected between the rod body and the bottom plate. The manhole cover can be hung through the hooks, stable positioning of the supporting points can be easily controlled through the bottom plate, the composite manhole cover is opened through the rod body according to the lever principle, and application is convenient and fast; in addition, the lighting lamp is arranged at the end of the bottom plate, and therefore the well lid can be accurately opened when the lighting condition is poor.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of manhole cover opening, in particular to a portable manhole cover opener. Background Art

[0002] There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipes, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an outlet leading to the ground at every section. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover.

[0003] When opening the manhole cover with a valve, tools such as a crowbar, a sheep pry, a hammer, and an iron hook are usually needed to assist, and the lever principle is mainly used to open the manhole cover to achieve a labor-saving effect. For example, a foldable manhole cover opener is disclosed in the patent with the authorization announcement CN 216997571 U. The device includes a power arm, a permanent magnetic suction cup, a manhole cover, and the ground. A composite hinge is arranged on the inner side of the power arm, and a resistance arm is arranged on the side of the composite hinge that is not connected to the power arm. A traction rope is arranged on the inner side of the resistance arm, and an anti-slip sleeve is arranged on the outer ring of the power arm away from the composite hinge. After the permanent magnetic suction cup is magnetically fixed to the manhole cover, the traction rope is connected to the connecting ring, and then a force is applied to the power arm, and then the end of the resistance arm away from the composite hinge is gradually lifted upward by the lever principle, thereby realizing the opening of the manhole cover in this process.

[0004] The manhole cover opener with a lever mechanism as mentioned above has the following problems: the closer the fulcrum (the hinge point of the lever) is to the manhole cover, the farther the fulcrum (the hinge point of the lever) is from the user's force-applying operating end, the better the labor-saving effect, resulting in a long distance between the user and the fulcrum and the inability to easily control the stable positioning of the fulcrum, and the instability of the fulcrum will have an adverse effect on the action of the lever mechanism. In the prior art, there is also a separate mechanism to achieve the stability of the fulcrum, which has a relatively complex structure, is relatively inconvenient to operate, and will cause inconvenience to the subsequent lifting process of the manhole cover. Utility Model Content

[0005] The technical solution of the utility model aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides a portable manhole cover opener to solve the technical problems raised in the above background technology that the stable positioning of the fulcrum cannot be easily controlled and the inconvenience caused to the subsequent lifting process of the manhole cover.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A portable manhole cover opener comprises a base plate and a rod body hingedly connected to the base plate, a hinge between the rod body and the base plate is arranged at one end of the base plate, one end of the rod body close to the hinge extends to the outside of the base plate and is installed with a hook, and a spring is connected between the rod body and the base plate.

[0008] Furthermore, the hinged member comprises a rotating shaft and an articulated block sleeved on the rotating shaft, the rotating shaft is located in the width direction of the base plate, and the rod body is fixedly connected to the articulated block.

[0009] Furthermore, a support member is connected to the bottom of the base plate.

[0010] Furthermore, a foot pedal is installed at one end of the base plate away from the hinge.

[0011] Furthermore, the width of the foot pedal is greater than the width of the base plate, and a plurality of anti-slip protrusions are provided on the surface of the foot pedal.

[0012] Furthermore, a positioning plate is connected to the side of the rod body facing the bottom plate, and a positioning hole which is adapted to the positioning plate and for the positioning plate to be inserted is formed on the side of the bottom plate facing the rod body.

[0013] Furthermore, one end of the rod body away from the hinge is connected to a handle.

[0014] Furthermore, one end of the rod body connected to the handle is bent.

[0015] Furthermore, a lighting lamp is embedded in the end portion of the bottom plate on the side where the hinge is located.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a base plate and a rod body hinged thereto, and a hook is installed at one end of the rod body, which can be conveniently hooked into the through groove on the manhole cover; when in use, the manhole cover is mainly pried open by deflecting the rod body around the hinge, that is, the manhole cover is opened by utilizing the lever principle; and through the provision of the base plate, the hinge is installed at one end of the base plate, and the base plate extends toward the control end of the rod body. The user only needs to step on the end of the base plate away from the hinge to achieve stable positioning of the hinge, that is, to achieve the effect of easily controlling the stable positioning of the fulcrum, thereby laying a good foundation for the operation of prying the manhole cover through the rod body, and the application is convenient.

[0018] A spring is connected between the rod body and the bottom plate of the utility model, and in the initial state of the spring, the rod body and the bottom plate are in a closed state. After prying the manhole cover, the user's foot is separated from the foot pedal and the handle is pulled upward. Under the elastic resetting action of the spring, the bottom plate will be driven to rotate toward the position of the rod body, so that the bottom plate and the rod body are closed as one, and the manhole cover can be lifted more conveniently.

[0019] The utility model has a simple structure, and the material is mainly composed of aluminum alloy, so it is light in weight and easy to carry.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model when the rod body and the bottom plate are opened;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model when the rod body and the bottom plate are closed;

[0023] Figure 3 It is a structural schematic diagram of the end of the bottom plate in the utility model.

[0024] In the figure: 1, base plate; 2, rotating shaft; 3, lighting lamp; 4, hook; 5, spring; 6, positioning plate; 7, rod body; 8, handle; 9, foot pedal; 10, positioning hole; 11, support member. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. Example 1

[0028] Please refer to the attached Figure 1 -Attached Figure 2A portable manhole cover opener comprises a bottom plate 1 and a rod body 7 hingedly connected to the bottom plate 1, wherein a hinged part between the rod body 7 and the bottom plate 1 is arranged at one end of the bottom plate 1. The equipment is mainly made of aluminum alloy, is light in weight, and is easy to carry.

[0029] A support member 11 is connected to the bottom of the base plate 1 on one side close to the hinge, which is used to support and raise the position of the base plate 1 to provide sufficient space for the manhole cover to be tilted up; a foot pedal 9 is installed at the end of the base plate 1 away from the hinge, and the width of the foot pedal 9 is greater than the width of the base plate 1 to facilitate the operator to step on it, and a plurality of anti-slip protrusions are provided on the surface of the foot pedal 9 to ensure the stability of stepping on the foot pedal 9.

[0030] One end of the rod body 7 close to the hinge extends to the outside of the base plate 1 and is installed with a hook 4, which is used to hook the through groove on the manhole cover; the end of the rod body 7 away from the hinge is connected to a handle 8, and the end of the rod body 7 connected to the handle 8 is bent for easy use; a spring 5 is connected between the rod body 7 and the base plate 1, and in the initial state of the spring 5, the rod body 7 and the base plate 1 are in a closed state.

[0031] In this embodiment, the hinged member includes a rotating shaft 2 and an articulated block mounted on the rotating shaft 2. The rotating shaft 2 is located in the width direction of the base plate 1, and the rod body 7 is fixedly connected to the articulated block.

[0032] When in use, the base plate 1 is placed near the composite manhole cover to be opened, and the support member 11 is made to fit the side of the manhole cover. At this time, the user's foot can step on the foot pedal 9, and by pulling up the handle 8, the rod body 7 rotates around the rotating shaft 2, and the end where the rod body 7 is connected to the hook 4 rotates downward, so that the hook 4 can hook the through groove on the manhole cover; then the handle 8 is pressed down to make the rod body 7 rotate in the opposite direction around the rotating shaft 2, and the end where the rod body 7 is connected to the hook 4 rotates upward, prying the manhole cover so that the side where the through groove of the manhole cover is tilted upward; then when the manhole cover is to be extracted upward, the user's foot is first separated from the foot pedal 9, and the handle 8 is instantly pulled upward. Under the elastic reset action of the spring 5, the base plate 1 is driven to rotate toward the position of the rod body 7, so that the base plate 1 and the rod body 7 are closed as one, and the manhole cover can be lifted to the side more conveniently; finally, the hook 4 is separated from the manhole cover. Example 2

[0033] The difference between this embodiment and embodiment 1 is that:

[0034] In this embodiment, please refer to the attached Figure 1 -Attached Figure 2The rod body 7 is connected to a positioning plate 6 on one side facing the bottom plate 1, and a positioning hole 10 adapted to the positioning plate 6 and inserted into the positioning plate 6 is provided on the side facing the rod body 7. When the rod body 7 and the bottom plate 1 are closed, the positioning plate 6 located in the middle of the rod body 7 can be directly inserted into the positioning hole 10 in the middle of the bottom plate 1, so that the two are more stable after being engaged, and are convenient for later carrying.

[0035] The rest is the same as in Example 1. Example 3

[0036] The difference between this embodiment and embodiment 1 is that:

[0037] In this embodiment, please refer to the attached Figure 3 The cross section of the bottom plate 1 is "U" shaped, the rotating shaft 2 is connected between the two side walls, and the end of the bottom plate 1 on the side where the hinge is located is embedded with a lighting lamp 3. When the lighting condition is poor, the manhole cover can be opened accurately by turning on the lighting lamp 3. The on and off control of the lighting lamp 3 is common knowledge known to personnel in the prior art and will not be repeated here.

[0038] The rest is the same as in Example 1.

[0039] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A portable manhole cover opener, characterized in that: The invention comprises a base plate (1) and a rod body (7) hingedly connected to the base plate (1), wherein a hinged part between the rod body (7) and the base plate (1) is arranged at one end of the base plate (1), an end of the rod body (7) close to the hinged part extends to the outside of the base plate (1) and is provided with a hook (4), and a spring (5) is connected between the rod body (7) and the base plate (1).

2. A portable manhole cover opener according to claim 1, characterized in that: The hinged component comprises a rotating shaft (2) and a hinge block sleeved on the rotating shaft (2); the rotating shaft (2) is located in the width direction of the base plate (1); and the rod body (7) is fixedly connected to the hinge block.

3. A portable manhole cover opener according to claim 1, characterized in that: A support member (11) is connected to the bottom of the base plate (1).

4. A portable manhole cover opener according to claim 1, characterized in that: A foot pedal (9) is mounted on one end of the base plate (1) away from the hinge.

5. A portable manhole cover opener according to claim 4, characterized in that: The width of the foot pedal (9) is greater than the width of the base plate (1), and a plurality of anti-slip protrusions are provided on the surface of the foot pedal (9).

6. A portable manhole cover opener according to claim 1, characterized in that: A positioning plate (6) is connected to the side of the rod body (7) facing the bottom plate (1), and a positioning hole (10) adapted to the positioning plate (6) and for the positioning plate (6) to be inserted is provided on the side of the bottom plate (1) facing the rod body (7).

7. A portable manhole cover opener according to claim 1, characterized in that: One end of the rod body (7) away from the hinged member is connected to a handle (8).

8. A portable manhole cover opener according to claim 7, characterized in that: One end of the rod body (7) connected to the handle (8) is bent.

9. The portable manhole cover opener according to claim 1, characterized in that: An illuminating lamp (3) is embedded in the end portion of the bottom plate (1) on the side where the hinge is arranged.

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