Labor-saving mechanism for opening electric well lid

Abstract

The utility model relates to the technical field of electric power well lids, in particular to an electric power well lid uncovering labor-saving mechanism which comprises a lid body, a cover plate and a cover plate, the cover body comprises a derrick, the surface of the derrick is movably connected with the cover plate, and the inner side of the derrick is fixedly connected with a connecting ring; and the labor-saving mechanism comprises a pressing rod, the pressing rod is slidably connected to the inner side of the cover plate, a supporting block is fixedly connected to the surface of the cover plate, an adjusting plate is movably connected to the inner side of the supporting block, an abutting plate is fixedly connected to the surface of the adjusting plate, and a control plate is movably connected to the inner side of a connecting ring. Under the connection of the control plate and the supporting spring, the limiting separation between the pressing plate and the clamping rod is achieved, the abutting disc slides under the action of the abutting spring, the surface of the cover plate is hit by the abutting disc, the cover plate can be conveniently opened on a derrick in a labor-saving mode, and under the elastic rotation of the protection groove and the protection cover, the cover plate is not prone to falling off. And the quick resetting effect of the protective cover in the protective groove can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric manhole covers, in particular to a labor-saving mechanism for opening an electric manhole cover. Background Art

[0002] Manhole covers are used to cover deep wells on roads to prevent people or objects from falling. Power manhole covers are manhole covers that protect underground cables.

[0003] The electric manhole cover must be made of ductile iron, the manhole cover must have a relatively high load-bearing capacity and strong anti-theft performance, and cables are buried under the manhole cover, so the waterproof function of the manhole cover must be very good. However, when using the existing electric manhole cover, there is no labor-saving mechanism for opening the cover on the surface. Long-term connected use can easily cause the connection between the surface cover and the main body to be squeezed, making it difficult to open. Therefore, it is urgent to design an electric manhole cover labor-saving mechanism for opening the cover to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an electric manhole cover labor-saving mechanism for opening the manhole cover, so as to solve the problem that the manhole cover surface has no labor-saving mechanism for opening the manhole cover and long-term connection and use may easily cause the connection between the surface cover and the main body to be squeezed, making it difficult to open.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, a labor-saving mechanism for opening a power manhole cover, comprising:

[0006] The cover body comprises a derrick, a cover plate is movably connected to the surface of the derrick, and a connecting ring is fixedly connected to the inner side of the derrick;

[0007] The labor-saving mechanism comprises a pressure rod, which is slidably connected to the inner side of the cover plate, the surface of the cover plate is fixedly connected to a support block, the inner side of the support block is movably connected to an adjustment plate, the surface of the adjustment plate is fixedly connected to a resistance plate, the inner side of the connecting ring is movably connected to a control plate, the surface of the connecting ring is provided with a telescopic groove, the inner side of the telescopic groove is slidably connected to a resistance plate, the surface of the resistance plate is fixedly connected to a resistance spring, the resistance spring and the connecting ring are fixedly connected, the surface of the resistance plate is rotatably connected to a clamping rod via a torsion spring, the surface of the control plate is fixedly connected to a pressure plate, the clamping rod and the pressure plate are abutted and connected, and the surface of the control plate is fixedly connected to a support spring.

[0008] Preferably, the pressure rod is slidably connected to the support block and the cover plate, the adjustment plate is plate-shaped and rotatably connected to the support block, the abutment plate is abuttedly connected to the control plate, and the abutment plate acts on the top of the control plate.

[0009] Preferably, the control plate is in a plate shape and penetrates the surface of the connecting ring, the resisting plate is slidably connected to the connecting ring through a telescopic groove, and the two ends of the resisting spring are fixedly connected to the surface of the resisting plate and the inner side of the connecting ring.

[0010] Preferably, the clamping rod is in an "L" shape, the pressure plate is in a long plate shape, and both ends of the support spring are fixedly connected to the surface of the control plate and the inner side of the connecting ring.

[0011] Preferably, a protective mechanism is provided on the surface of the cover plate, and the protective mechanism includes a protective groove, which is opened on the surface of the cover plate, a fixed block is fixedly connected to the inner side of the protective groove, a connecting block is movably connected to the inner side of the fixed block, and a protective cover is fixedly connected to the surface of the connecting block.

[0012] Preferably, the fixing block and the connecting block are rotatably connected via a rotating rod and a torsion spring, and the protective cover is disc-shaped and rotatably connected to the protective groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the fixed connection between the support block and the cover plate, under the abutment connection between the pressure rod and the adjustment plate, the action angle of the adjustment plate in the support block is changed, so as to change the connection angle between the pressure plate and the control plate. Under the connection between the control plate and the support spring, the limit separation between the pressure plate and the clamping rod is realized, so that the pressure plate slides under the action of the pressure spring, and the pressure plate hits the surface of the cover plate, which is convenient for the labor-saving use of the cover plate when opening on the derrick.

[0015] 2. Through the connection between the protective groove and the cover plate, the protective cover can be elastically rotated in the protective groove under the elastic rotation of the fixed block and the connecting block, so that the protective cover can protect the surface of the pressure rod in the protective groove and prevent the pressure rod from being misoperated by external objects. Moreover, under the elastic rotation of the protective groove and the protective cover, the protective cover can be quickly reset in the protective groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a bottom-up stereoscopic schematic diagram of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 1 A three-dimensional schematic diagram of the structure of the middle cover plate;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of a partial front view and cross-section of the structure of the middle cover plate and the connecting ring;

[0020] Figure 5 For this utility model Figure 4 A schematic diagram of a partial front view and section view of the structure of the middle plate;

[0021] Figure 6 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1, derrick; 11, cover plate; 12, connecting ring; 2, pressure rod; 21, support block; 22, adjustment plate; 23, back plate; 24, control plate; 25, telescopic slot; 26, back plate; 27, back spring; 28, clamping rod; 29, pressure plate; 210, support spring; 3, protection slot; 31, protection cover; 32, fixing block; 33, connecting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 , an embodiment provided by the utility model:

[0025] A labor-saving mechanism for opening an electric manhole cover, comprising:

[0026] The cover body comprises a derrick 1, a cover plate 11 is movably connected to the surface of the derrick 1, and a connecting ring 12 is fixedly connected to the inner side of the derrick 1. When the derrick 1 and the cover plate 11 are connected, the cover plate 11 can protect the articles in the derrick 1. When the connecting ring 12 and the derrick 1 are connected, the connecting ring 12 and the cover plate 11 are abutted to support and fix the connection position of the cover plate 11 in the derrick 1.

[0027] The labor-saving mechanism includes a pressure rod 2, which is slidably connected to the inner side of the cover plate 11. The surface of the cover plate 11 is fixedly connected to a support block 21, and the inner side of the support block 21 is movably connected to an adjustment plate 22. The surface of the adjustment plate 22 is fixedly connected to a back plate 23. The inner side of the connecting ring 12 is movably connected to a control plate 24. A telescopic groove 25 is provided on the surface of the connecting ring 12. A back plate 26 is slidably connected to the inner side of the telescopic groove 25. The surface of the back plate 26 is fixedly connected to a back spring 27. The back spring 27 is fixedly connected to the connecting ring 12. The surface of the back plate 26 is rotatably connected to a clamping rod 28 through a torsion spring. The control plate 24 The surface of the control plate 24 is fixedly connected with a pressure plate 29, the clamping rod 28 and the pressure plate 29 are in abutment connected, and the surface of the control plate 24 is fixedly connected with a support spring 210. Through the sliding connection between the pressure rod 2 and the support block 21, the connection and separation between the push plate 23 and the control plate 24 are realized under the abutment connection between the pressure rod 2 and the adjustment plate 22. Under the connection of the support spring 210 and the control plate 24, the clamping rod 28 and the pressure plate 29 are separated. Under the action of the push spring 27, the push plate 26 hits the surface of the cover plate 11, thereby loosening the connection between the cover plate 11 and the derrick 1, and realizing the effect of labor-saving cover opening.

[0028] Furthermore, the pressure rod 2 is slidably connected to the cover plate 11 through the support block 21, the adjustment plate 22 is plate-shaped and rotatably connected to the support block 21, the abutment plate 23 and the control plate 24 are abutted and connected, and the abutment plate 23 acts on the top of the control plate 24. Through the connection between the pressure rod 2 and the support block 21, and under the connection between the support block 21 and the cover plate 11, the support of the action position of the adjustment plate 22 in the cover plate 11 is achieved, and under the action of the pressure rod 2, the change and control of the action angle of the adjustment plate 22 in the derrick 1 is achieved.

[0029] Furthermore, the control plate 24 is in the shape of a plate and passes through the surface of the connecting ring 12. The resistance plate 26 is slidably connected to the connecting ring 12 through the telescopic groove 25. The two ends of the resistance spring 27 are fixedly connected to the surface of the resistance plate 26 and the inner side of the connecting ring 12. Through the abutment connection between the control plate 24 and the resistance plate 23, when the angle of the adjustment plate 22 changes, the resistance plate 23 and the control plate 24 are separated, thereby releasing the limitation on the action position of the resistance plate 26 in the telescopic groove 25.

[0030] Furthermore, the clamping rod 28 is in an "L" shape, the pressure plate 29 is in a long plate shape, and the two ends of the support spring 210 are fixedly connected to the surface of the control plate 24 and the inner side of the connecting ring 12. Through the connection between the clamping rod 28 and the abutment plate 26, and the abutment connection between the pressure plate 29 and the clamping rod 28, the control plate 24 limits the action position of the abutment plate 26 in the telescopic groove 25. Under the action of the support spring 210, the action position of the control plate 24 in the connecting ring 12 is adjusted and controlled.

[0031] Furthermore, a protective mechanism is provided on the surface of the cover plate 11, and the protective mechanism includes a protective groove 3, which is opened on the surface of the cover plate 11, a fixed block 32 is fixedly connected to the inner side of the protective groove 3, a connecting block 33 is movably connected to the inner side of the fixed block 32, and a protective cover 31 is fixedly connected to the surface of the connecting block 33. Through the connection between the protective groove 3 and the cover plate 11, under the action of the protective groove 3, the operation of the pressure rod 2 on the cover plate 11 is facilitated.

[0032] Furthermore, the fixed block 32 and the connecting block 33 are rotationally connected through a rotating rod and a torsion spring, and the protective cover 31 is disc-shaped and rotationally connected to the protective groove 3. Through the rotational connection between the connecting block 33 and the fixed block 32, and under the connection between the connecting block 33 and the protective cover 31, the support and angle adjustment of the protective cover 31 in the protective groove 3 are achieved.

[0033] Working principle: Under the fixed connection between the support block 21 and the cover plate 11, the pressure rod 2 and the support block 21 are slidably connected. When the cover plate 11 needs to be opened, the operator uses a tool to press the pressure rod 2 to change the action angle of the adjustment plate 22 in the support block 21. At this time, the resistance plate 23 and the control plate 24 will separate. Under the elastic force of the support spring 210, the control plate 24 drives the pressure plate 29 and the clamping rod 28 to separate. Under the connection between the resistance spring 27 and the resistance plate 26, the resistance plate 26 hits the surface of the cover plate 11, thereby loosening the connection between the cover plate 11 and the derrick 1, and realizing the labor-saving effect of opening the cover.

[0034] With the protection groove 3 and the cover plate 11 connected, the operation of the pressure rod 2 in the cover plate 11 is convenient. With the connection between the fixing block 32 and the protection groove 3, the elastic force between the fixing block 32 and the connecting block 33 rotates to change the action angle of the protection cover 31 in the protection groove 3. Under the action of its torsion spring, the action angle of the protection cover 31 in the protection groove 3 is automatically reset, thereby achieving the protection effect of the pressure rod 2 in the cover plate 11.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A labor-saving mechanism for opening an electric manhole cover, characterized in that: include: The cover body comprises a derrick (1), a cover plate (11) being movably connected to the surface of the derrick (1), and a connecting ring (12) being fixedly connected to the inner side of the derrick (1); The labor-saving mechanism comprises a pressure rod (2), wherein the pressure rod (2) is slidably connected to the inner side of a cover plate (11), a support block (21) is fixedly connected to the surface of the cover plate (11), an adjustment plate (22) is movably connected to the inner side of the support block (21), a stop plate (23) is fixedly connected to the surface of the adjustment plate (22), a control plate (24) is movably connected to the inner side of the connecting ring (12), a telescopic groove (25) is provided on the surface of the connecting ring (12), and the telescopic groove (25) is provided on the inner side of the connecting ring (12). The inner side of the groove (25) is slidably connected to a resisting plate (26), the surface of the resisting plate (26) is fixedly connected to a resisting spring (27), the resisting spring (27) and the connecting ring (12) are fixedly connected, the surface of the resisting plate (26) is rotatably connected to a clamping rod (28) via a torsion spring, the surface of the control plate (24) is fixedly connected to a pressure plate (29), the clamping rod (28) and the pressure plate (29) are abuttingly connected, and the surface of the control plate (24) is fixedly connected to a supporting spring (210).

2. The labor-saving mechanism for opening a power manhole cover according to claim 1, characterized in that: The pressure rod (2) is slidably connected to the cover plate (11) via a support block (21); the adjustment plate (22) is plate-shaped and rotatably connected to the support block (21); the abutment plate (23) is abutt-connected to the control plate (24), and the abutment plate (23) acts on the top of the control plate (24).

3. The labor-saving mechanism for opening a power manhole cover according to claim 1, characterized in that: The control plate (24) is in the form of a plate and penetrates the surface of the connecting ring (12); the resisting plate (26) is slidably connected to the connecting ring (12) through the telescopic groove (25); and the two ends of the resisting spring (27) are fixedly connected to the surface of the resisting plate (26) and the inner side of the connecting ring (12).

4. The labor-saving mechanism for opening a power manhole cover according to claim 1, characterized in that: The clamping rod (28) is in an "L" shape, the pressing plate (29) is in a long plate shape, and the two ends of the supporting spring (210) are fixedly connected to the surface of the control plate (24) and the inner side of the connecting ring (12).

5. The labor-saving mechanism for opening a power manhole cover according to claim 1, characterized in that: The surface of the cover plate (11) is provided with a protective mechanism, the protective mechanism comprising a protective groove (3), the protective groove (3) being opened on the surface of the cover plate (11), a fixed block (32) being fixedly connected to the inner side of the protective groove (3), a connecting block (33) being movably connected to the inner side of the fixing block (32), and a protective cover (31) being fixedly connected to the surface of the connecting block (33).

6. The labor-saving mechanism for opening a power manhole cover according to claim 5, characterized in that: The fixing block (32) and the connecting block (33) are rotatably connected via a rotating rod and a torsion spring, and the protective cover (31) is in a disc shape and is rotatably connected to the protective groove (3).

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