Well lid lifting frame for municipal pipe well construction

Abstract

The utility model relates to the technical field of municipal maintenance equipment, in particular to a well lid landing gear for municipal tube well construction, which comprises a base, a longitudinal beam fixedly connected onto the base, a cross beam fixedly connected onto the longitudinal beam, a traction structure arranged on the longitudinal beam, two guide wheels rotatably connected onto the cross beam, and a connecting rope wound on the two guide wheels. One end of the connecting rope is fixedly connected with a rotating block, the rotating block is rotationally connected to a connecting block, the connecting block is clamped with the cross rod, two clamping hooks are arranged on the cross rod, a limiting structure is arranged on the connecting block and comprises a pressing block and clamping blocks, the two clamping blocks are connected to the connecting block in a sliding mode, one end of each clamping block is clamped with the cross rod, and the pressing blocks are fixedly connected to the clamping blocks; the pressing block is slidably connected to the connecting block. And the situation that a large amount of time is spent on adjusting the position of the device can be avoided, so that the operation time is saved, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to a manhole cover lifter, in particular to a manhole cover lifter for municipal pipe well construction, belonging to the technical field of municipal maintenance equipment. Background Technique

[0002] Municipal manhole covers on roads and bridges need to be regularly opened to inspect and maintain internal lines, pipelines, etc. Currently, the way to open municipal manhole covers is that two workers use a long rod with a hook at the end to hook into the opening hole of the manhole cover or the grille of the manhole cover, and then they exert force together to open the manhole cover and then carry it.

[0003] In the patent application with the application number "202420159208.7" and the name "A manhole cover lifter for municipal pipe well construction", the opening and carrying of the manhole cover are realized. However, in order to ensure that the hook can smoothly hook from the through hole opened on the manhole cover to the inside of the manhole cover, it is necessary to make the axis of the pull rod located on the connection line of the two through holes opened on the manhole cover. Therefore, it takes a lot of time to adjust the position of the pull rod every time, which will waste a certain amount of time and result in poor operation convenience. Content of the Utility Model

[0004] The purpose of the utility model is to provide a manhole cover lifter for municipal pipe well construction to solve the above problems, which can avoid spending a lot of time adjusting the position of the device, thus saving operation time and improving operation convenience.

[0005] The utility model realizes the above purpose through the following technical solutions. A manhole cover lifter for municipal pipe well construction includes a base, a longitudinal beam is fixedly connected to the base, a cross beam is fixedly connected to the longitudinal beam, a pulling structure is arranged on the longitudinal beam, two guide wheels are rotatably connected to the cross beam, a connecting rope is wound around the two guide wheels, one end of the connecting rope is fixedly connected to a rotating block, the rotating block is rotatably connected to an adapter block, the adapter block is engaged with a cross bar, two hooks are arranged on the cross bar, and a limiting structure is arranged on the adapter block. The limiting structure includes a pressing block and a clamping block. Two clamping blocks are slidably connected to the adapter block, one end of the clamping block is engaged with the cross bar, a pressing block is fixedly connected to the clamping block, and the pressing block is slidably connected to the adapter block.

[0006] Preferably, two return springs are arranged inside the adapter block, one end of the return spring abuts against the clamping block, and the other end of the return spring abuts against the adapter block.

[0007] Preferably, the cross section of one end of the clamping block is in a trapezoidal structure, and the cross section of the clamping block is in an L-shaped structure.

[0008] Preferably, one end of the pressing block extends to the outside of the connecting block, and the two pressing blocks are symmetrically distributed about the middle of the connecting block.

[0009] Preferably, the cross-section of the rotating block is in a T-shaped structure, and the cross-section of the bottom end of the connecting block is in a trapezoidal structure.

[0010] Preferably, the cross-section of the base is in a C-shaped structure, and a plurality of braking universal wheels are installed at the bottom end of the base.

[0011] Preferably, the pulling structure includes a connecting block and a rotating shaft. A connecting block is fixedly connected to the longitudinal beam. A rotating shaft is rotatably connected to the connecting block. One end of the rotating shaft is fixedly connected to a first gear. A lead screw is rotatably connected to the longitudinal beam. The top end of the lead screw is fixedly connected to a second gear. The first gear meshes with the second gear. A slider is threadedly connected to the lead screw. The slider is slidably connected to the longitudinal beam. The slider is fixedly connected to the connecting rope.

[0012] Preferably, one end of the rotating shaft is fixedly connected to a rotating rod, and the rotating rod penetrates through the rotating shaft and is perpendicular to the rotating shaft.

[0013] Preferably, the cross-section of the connecting block is in an L-shaped structure, and the cross-section of the slider is in a rectangular structure.

[0014] The beneficial effects of the present utility model are as follows: During use, by simultaneously pressing the two pressing blocks, the pressing blocks will drive the clamping block to move. When the end of the clamping block is not engaged with the cross bar, the cross bar can be removed from the connecting block. After the cross bar is removed, the cross bar can be moved so that the two hooks enter the inner side of the manhole cover through the through holes opened on the manhole cover. Since the cross bar is small in volume and light in weight, it is more convenient and faster to move. Then, the position of the hook can be adjusted to hook the inner side of the manhole cover. Next, the connecting block can be moved so that the connecting block is engaged with the cross bar again. When the connecting block and the cross bar are fully engaged, the clamping block will be engaged with the cross bar. At this time, the connecting block and the cross bar cannot be separated. After the connecting block and the cross bar are engaged, the base can be moved to make the connecting rope in a vertical state. Then, the connecting rope can be pulled through the pulling structure. Finally, under the action of the pulling force, the manhole cover will be pulled out, thus realizing the rapid removal of the manhole cover, avoiding the need to spend a lot of time adjusting the position of the device, shortening the operation time, and improving the operation convenience at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the connection structural schematic diagram of the guide wheel and the cross beam of the present utility model;

[0017] Figure 3For Figure 2 The enlarged schematic view of part A shown in

[0018] Figure 4 The connection structure schematic diagram of the connecting block and the rotating shaft of the present utility model.

[0019] In the figure: 1, base; 2, cross bar; 3, hook; 4, connecting block; 5, limiting structure; 501, pressing block; 502, clamping block; 503, return spring; 6, rotating block; 7, connecting rope; 8, guiding wheel; 9, pulling structure; 901, connecting block; 902, rotating rod; 903, rotating shaft; 904, first gear; 905, second gear; 906, lead screw; 907, slider; 10, longitudinal beam; 11, cross beam; 12, braking universal wheel. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, a manhole cover lifter for municipal pipe well construction includes a base 1, a longitudinal beam 10 is fixedly connected to the base 1, a cross beam 11 is fixedly connected to the longitudinal beam 10, a pulling structure 9 is provided on the longitudinal beam 10, two guiding wheels 8 are rotatably connected to the cross beam 11, a connecting rope 7 is wound around the two guiding wheels 8, one end of the connecting rope 7 is fixedly connected to a rotating block 6, the rotating block 6 is rotatably connected to a connecting block 4, the connecting block 4 is engaged with a cross bar 2, two hooks 3 are provided on the cross bar 2, a limiting structure 5 is provided on the connecting block 4, the limiting structure 5 includes a pressing block 501 and a clamping block 502, two clamping blocks 502 are slidably connected to the connecting block 4, one end of the clamping block 502 is engaged with the cross bar 2, a pressing block 501 is fixedly connected to the clamping block 502, and the pressing block 501 is slidably connected to the connecting block 4.

[0024] As a technical optimization solution of the present utility model, as Figure 3 shown, two reset springs 503 are provided inside the connecting block 4. One end of the reset spring 503 abuts against the clamping block 502, and the other end of the reset spring 503 abuts against the connecting block 4. Therefore, under the action of the reset spring 503, the clamping block 502 and the cross bar 2 can be clamped more firmly.

[0025] As a technical optimization solution of the present utility model, as Figure 3 shown, the cross section of one end of the clamping block 502 is trapezoidal, and the cross section of the clamping block 502 is L-shaped. Therefore, it can play a guiding role when the clamping block 502 and the cross bar 2 are clamped.

[0026] As a technical optimization solution of the present utility model, as Figure 3 shown, one end of the pressing block 501 extends to the outside of the connecting block 4, and the two pressing blocks 501 are symmetrically distributed about the middle of the connecting block 4. Therefore, it is convenient to press the pressing block 501.

[0027] As a technical optimization solution of the present utility model, as Figure 3 shown, the cross section of the rotating block 6 is T-shaped, and the cross section of the bottom end of the connecting block 4 is trapezoidal. Therefore, it can play a guiding role when the connecting block 4 and the cross bar 2 are clamped.

[0028] As a technical optimization solution of the present utility model, as Figure 1 shown, the cross section of the base 1 is C-shaped, and a plurality of brake universal wheels 12 are installed at the bottom end of the base 1. Therefore, it is convenient to move the base 1.

[0029] As a technical optimization solution of the present utility model, as Figure 1 、 Figure 2 and Figure 4 shown, the pulling structure 9 includes a connecting block 901 and a rotating shaft 903. A connecting block 901 is fixedly connected to the longitudinal beam 10. A rotating shaft 903 is rotatably connected to the connecting block 901. One end of the rotating shaft 903 is fixedly connected to a first gear 904. A lead screw 906 is rotatably connected to the longitudinal beam 10. The top end of the lead screw 906 is fixedly connected to a second gear 905. The first gear 904 meshes with the second gear 905. A slider 907 is threadedly connected to the lead screw 906. The slider 907 is slidably connected to the longitudinal beam 10. The slider 907 is fixedly connected to the connecting rope 7. The cross section of the connecting block 901 is L-shaped, and the cross section of the slider 907 is rectangular. Therefore, a pulling force can be applied to the manhole cover, so that the manhole cover can be pulled out.

[0030] As a technical optimization solution of the present utility model, as Figure 1 and Figure 4 shown, one end of the rotating shaft 903 is fixedly connected with a rotating rod 902. The rotating rod 902 penetrates through the rotating shaft 903 and is perpendicular to the rotating shaft 903. Therefore, it is more labor-saving to rotate the rotating shaft 903.

[0031] When the present utility model is in use, during the use process, by simultaneously pressing two pressing blocks 501, the pressing blocks 501 will drive the clamping blocks 502 to move, and the return spring 503 will contract. When the end of the clamping block 502 is not engaged with the cross bar 2, the cross bar 2 can be removed from the connecting block 4. After the cross bar 2 is removed, the cross bar 2 can be moved so that the two hooks 3 enter the inner side of the manhole cover through the through holes opened on the manhole cover. Since the cross bar 2 is small in volume and light in weight, it is more convenient and fast to move. Then, the position of the hook 3 can be adjusted to hook the inner side of the manhole cover. Then, by moving the connecting block 4, the connecting block 4 will be engaged with the cross bar 2 again. When the connecting block 4 and the cross bar 2 are completely engaged, under the action of the return spring 503, the clamping block 502 will be engaged with the cross bar 2. At this time, the connecting block 4 and the cross bar 2 cannot be separated. After the connecting block 4 and the cross bar 2 are engaged, the connecting rope 7 can be made in a vertical state by moving the base 1. Then, the rotating shaft 903 can be rotated through the rotating rod 902. The rotation of the rotating shaft 903 drives the first gear 904 to rotate. The rotation of the first gear 904 drives the second gear 905 to rotate. The second gear 905 drives the lead screw 906 to rotate. The lead screw 906 drives the slider 907 to slide on the longitudinal beam 10 by thread. The sliding of the slider 907 will pull the connecting rope 7. Finally, under the action of the pulling force, the manhole cover will be pulled out, thus realizing the rapid removal of the manhole cover, avoiding the need to spend a lot of time adjusting the position of the device, shortening the operation time, and improving the operation convenience at the same time. Driving the slider 907 to move by the lead screw 906 can play a role in saving labor, thus effectively improving the operation convenience.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0033] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A manhole cover landing gear for municipal pipe well construction, comprising a base (1), characterized in that: The base (1) is fixedly connected to a longitudinal beam (10), the longitudinal beam (10) is fixedly connected to a transverse beam (11), the longitudinal beam (10) is provided with a pulling structure (9), the transverse beam (11) is rotatably connected to two guide wheels (8), a connecting rope (7) is wound around the two guide wheels (8), one end of the connecting rope (7) is fixedly connected to a rotating block (6), the rotating block (6) is rotatably connected to a connecting block (4), the connecting block (4) and the transverse bar (2 ), the cross bar (2) is provided with two hooks (3), the connecting block (4) is provided with a limiting structure (5), the limiting structure (5) comprises a pressing block (501) and a clamping block (502), the connecting block (4) is slidably connected with two clamping blocks (502), one end of the clamping block (502) is engaged with the cross bar (2), the clamping block (502) is fixedly connected with a pressing block (501), and the pressing block (501) is slidably connected to the connecting block (4).

2. A manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: Two return springs (503) are arranged inside the connection block (4), one end of the return spring (503) abuts against the clamping block (502), and the other end of the return spring (503) abuts against the connection block (4).

3. The manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: The cross section of one end of the clamping block (502) is a trapezoidal structure, and the cross section of the clamping block (502) is an L-shaped structure.

4. The manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: One end of the pressing block (501) extends to the outside of the connecting block (4), and the two pressing blocks (501) are symmetrically distributed about the middle of the connecting block (4).

5. The manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: The cross section of the rotating block (6) is in a T-shaped structure, and the cross section of the bottom end of the connecting block (4) is in a trapezoidal structure.

6. The manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: The cross section of the base (1) is a C-shaped structure, and a plurality of brake universal wheels (12) are installed at the bottom end of the base (1).

7. The manhole cover landing gear for municipal pipe well construction according to claim 1, characterized in that: The pulling structure (9) comprises a connecting block (901) and a rotating shaft (903); the connecting block (901) is fixedly connected to the longitudinal beam (10); the rotating shaft (903) is rotatably connected to the connecting block (901); one end of the rotating shaft (903) is fixedly connected to a first gear (904); a screw rod (906) is rotatably connected to the longitudinal beam (10); the top end of the screw rod (906) is fixedly connected to a second gear (905); the first gear (904) and the second gear (905) are meshed with each other; a slider (907) is threadedly connected to the screw rod (906); the slider (907) is slidably connected to the longitudinal beam (10); and the slider (907) is fixedly connected to the connecting rope (7).

8. A manhole cover landing gear for municipal pipe well construction according to claim 7, characterized in that: One end of the rotating shaft (903) is fixedly connected to a rotating rod (902), and the rotating rod (902) passes through the rotating shaft (903) and is perpendicular to the rotating shaft (903).

9. A manhole cover landing gear for municipal pipe well construction according to claim 7, characterized in that: The cross section of the connecting block (901) is an L-shaped structure, and the cross section of the sliding block (907) is a rectangular structure.

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