Portable lever type well lid opening device

Abstract

The utility model discloses a portable lever type well lid opening device, and relates to the technical field of municipal pipeline detection. The support (1) is used for being supported on one side of a well lid, the lever (2) is hinged to the support (1), the sliding groove (3) is formed in the lever (2), the pull rod (5) is limited in the sliding groove (3) in a sliding mode and can be locked in one position of the sliding groove (3), and the clamping hook is arranged at the end of the pull rod (5) and used for being connected with the well lid in a clamping mode when the pull rod (5) stretches into an opening hole. The portable lever type well lid opening device well solves the problem that part of old reinforced concrete well lids and composite material well lids cannot be opened due to repeated rolling and non-regular maintenance in the long-time use process, and the well lids can be conveniently opened in municipal pipe network troubleshooting and overhauling work; the construction cost is effectively saved, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline inspection and maintenance, in particular to a portable lever-type manhole cover opening device. Background Art

[0002] In the continuous renewal process of the city, old reinforced concrete manhole covers and composite material manhole covers cannot be opened due to repeated rolling and lack of regular maintenance during long-term use. During the operation of municipal pipe networks, the construction operations of pipeline inspection and maintenance often require frequent opening and closing of inspection manhole covers. However, common tools such as hooks, pickaxes, and crowbars cannot smoothly open such old manhole covers. The main reason is that during the operation of tools such as hooks, pickaxes, and crowbars, due to the manhole cover being stuck or the gap being blocked by dust, etc., it is impossible to find the insertion opening or the force application position. Moreover, due to the structural problems of equipment such as hooks, effective force application cannot be provided, and large tools often need to be used in cooperation, resulting in inconvenient operation. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a portable lever-type manhole cover opening device with convenient operation and low cost.

[0004] The technical solution adopted by the utility model to solve its technical problem is: the portable lever-type manhole cover opening device includes a support for supporting on one side of the manhole cover, a lever hinged on the support, a chute opened on the lever, a pull rod slidably limited in the chute and lockable at a position in the chute, and a hook provided at the end of the pull rod for inserting into the opening hole and engaging with the manhole cover when the pull rod extends.

[0005] Further, it also includes an extension rod, and the extension rod is connected to the lever.

[0006] Further, it also includes an adjustment mechanism, and the adjustment mechanism is arranged at the upper end of the pull rod, and the telescopic length of the pull rod is adjusted through the adjustment mechanism.

[0007] Further, the adjustment mechanism is a bolt, the upper end of the pull rod is provided with a thread, and the bolt is screwed on the upper end of the pull rod.

[0008] Further, the pull rod includes a hollow tube and a lining rod inserted into the hollow tube, a stop head is arranged at the end of the lining rod, the hook is arranged at the lower end of the lining rod, and the thread is opened on the outer wall of the hollow tube.

[0009] Further, the hook includes a T-shaped chuck arranged at the lower end of the lining rod.

[0010] Further, the stop head is frustum-shaped, and a T-shaped chuck pointing mark is arranged on the stop head.

[0011] The portable lever - type manhole cover opening device includes a lever hinged to a support. A pull rod is slidably connected to the lever. During use, by sliding the pull rod to a predetermined position and inserting the pull rod into the opening hole, the manhole cover can be opened by lifting the lever. The portable lever - type manhole cover opening device of the present utility model well solves the problem that some old reinforced concrete manhole covers and composite material manhole covers cannot be opened due to repeated rolling and lack of regular maintenance during long - term use. It can conveniently open the manhole cover during the inspection and maintenance of municipal pipe networks, effectively saving the construction cost and having simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following will further illustrate the present utility model in conjunction with the drawings and embodiments. In the drawings:

[0013] Figure 1 is a schematic structural view of the portable lever - type manhole cover opening device according to an embodiment of the present utility model;

[0014] Figure 2 is a side view of the portable lever - type manhole cover opening device according to an embodiment of the present utility model;

[0015] Figure 3 is a side view of the portable lever - type manhole cover opening device and the manhole cover according to an embodiment of the present utility model;

[0016] Figure 4 is a top view of the portable lever - type manhole cover opening device and the manhole cover according to an embodiment of the present utility model;

[0017] Figure 5 is a schematic structural view of the pull rod according to an embodiment of the present utility model.

[0018] DESCRIPTION OF REFERENCE NUMERALS:

[0019] 1, support; 2, lever; 3, chute; 5, pull rod; 51, hollow tube; 52, lining rod; 53, stop head; 54, pointing mark; 6, extension rod; 7, bolt; 100, manhole cover; 101, opening hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will now be described in detail with reference to the drawings.

[0021] As Figures 1-5 shown, the portable lever - type manhole cover opening device includes a support 1 for supporting on one side of the manhole cover 100, a lever 2 hinged to the support 1, a chute 3 opened on the lever 2, a pull rod 5 slidably limited in the chute 3 and lockable at a position in the chute 3, and a hook provided at the end of the pull rod 5 for engaging the manhole cover 100 when the pull rod 5 extends into the opening hole 101.

[0022] The portable lever - type manhole cover opening device includes a lever 2 hinged to a support 1. A pull rod 5 is slidably connected to the lever 2. During use, the pull rod 5 is slid to a predetermined position and inserted into an opening hole 101, and the manhole cover 100 is opened by lifting the lever 2. The portable lever - type manhole cover opening device of the utility model well solves the problem that some old reinforced concrete manhole covers and composite material manhole covers cannot be opened due to repeated rolling and lack of regular maintenance during long - term use. It can conveniently open manhole covers during the inspection and maintenance of municipal pipe networks, effectively saving construction costs and having simple operation.

[0023] To make it more labor - saving when opening, the end of the lever 2 further includes an extension rod 6, and the extension rod 6 is connected to the lever 2.

[0024] To ensure the stability during opening and the force on the pull rod 5 during opening, an adjusting mechanism is further included. The adjusting mechanism is arranged at the upper end of the pull rod 5, and the telescopic length of the pull rod 5 is adjusted through the adjusting mechanism. Preferably, the adjusting mechanism is a bolt 7. A thread is provided at the upper end of the pull rod 5, and the bolt 7 is screwed to the upper end of the pull rod 5.

[0025] After the lower end of the pull rod 5 extends into the opening hole 101, a hook needs to press and engage with the manhole cover 100. Since the opening hole 101 is mostly oval or long - hole, the hook needs to have a proper angle when engaging. To realize the adjustment of the hook direction, the pull rod 5 includes a hollow tube 51 and a lining rod 52 inserted into the hollow tube 51. A stop head 53 is provided at the end of the lining rod 52. The hook is arranged at the lower end of the lining rod 52. The thread is opened on the outer wall of the hollow tube 51. The hook includes a T - shaped chuck arranged at the lower end of the lining rod 52. The stop head 53 is frustum - shaped, and a T - shaped chuck pointing mark 54 is provided on the stop head 53.

[0026] After the hook extends into the opening hole 101, the position of the hook is determined by observing the pointing mark 54. At this time, if the hook direction is not appropriate, the direction of the hook is adjusted by rotating the stop head 53.

[0027] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0028] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to exhaustively list all implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.

Claims

1. A portable lever-type manhole cover opening device, characterized in that, It includes a support (1) for supporting on one side of the manhole cover, a lever (2) hinged to the support (1), a chute (3) opened on the lever (2), a pull rod (5) slidably limited in the chute (3) and lockable at a position in the chute (3), and a hook provided at the end of the pull rod (5) for the pull rod (5) to extend into the opening hole and latch onto the manhole cover.

2. The portable lever-type manhole cover opening device according to claim 1, characterized in that, It further includes an extension rod (6), and the extension rod (6) is connected to the lever (2).

3. The portable lever-type manhole cover opening device according to claim 1, wherein It further includes an adjustment mechanism, and the adjustment mechanism is provided at the upper end of the pull rod (5), and the telescopic length of the pull rod (5) is adjusted through the adjustment mechanism.

4. The portable lever-type manhole cover opening device according to claim 3, wherein, The adjustment mechanism is a bolt (7), the upper end of the pull rod (5) is provided with a thread, and the bolt (7) is screwed onto the upper end of the pull rod (5).

5. The portable lever-type manhole cover opening device according to claim 4, wherein, The pull rod (5) includes a hollow tube (51) and a lining rod (52) inserted into the hollow tube (51), a stop head (53) is provided at the end of the lining rod (52), the hook is provided at the lower end of the lining rod (52), and the thread is opened on the outer wall of the hollow tube (51).

6. The portable lever-type manhole cover opening device according to claim 5, characterized in that, The hook includes a T-shaped chuck provided at the lower end of the lining rod (52).

7. The portable lever-type manhole cover opening device according to claim 6, wherein, The stop head (53) is frustum-shaped, and a T-shaped chuck pointing mark (54) is provided on the stop head (53).

Images