A device for preventing displacement of a well lid

Abstract

The application discloses a well lid anti-displacement device and relates to the municipal engineering field.The well lid anti-displacement device comprises a well shaft and a well lid, the bottom of the well lid is fixedly connected with a base, an anti-displacement device is arranged between the well shaft and the base, the anti-displacement device comprises a fixing sleeve, a fixing rod is movably inserted into the inner wall of the fixing sleeve, one end of the fixing sleeve and the fixing rod is fixedly connected with a support, the top outer surface and the bottom outer surface of the support are rotatably connected with a first bearing and a second bearing respectively, the two first bearings and the two second bearings are in close abutment with the inner ring surface of the base and the inner ring surface of the well shaft respectively, and an adjusting assembly is arranged between the fixing sleeve and the fixing rod.The well lid anti-displacement device is used for limiting the position of the base and the well lid relative to the well shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal engineering, in particular to a device for preventing displacement of a manhole cover. BACKGROUND

[0002] At present, the manhole cover in domestic municipal engineering is generally laid before the pavement engineering construction, and no protection device is set. In the construction process of asphalt pavement or concrete pavement, the manhole cover is easily displaced due to uneven stress caused by vibration or rolling of the pavement.

[0003] A Chinese invention patent "Manhole cover positioning installation construction method and positioning installation construction device" (publication number: 105696628A) proposes a manhole cover positioning installation construction method. A positioning plate is placed on the waterway opening of the roadbed, the waterway opening is shielded, the pavement is laid and leveled, the position of the positioning plate is positioned and marked on the laid pavement by a magnet, the pavement is excavated to expose the strip-shaped slot of the positioning plate, the part of the pavement above the strip-shaped slot is milled and planed as the center of the strip-shaped slot, the part of the pavement is separated, a rod body with a horizontal bar at the bottom matched with the shape of the strip-shaped slot is vertically inserted into the strip-shaped slot, the horizontal bar is misaligned with the strip-shaped slot by rotating the rod body, the positioning plate and the separated part of the pavement are lifted and moved by applying force to the rod body, and the manhole cover is installed at the remaining space.

[0004] However, there are few designs and researches on manhole cover positioning installation and displacement prevention devices, and therefore we propose a device for preventing displacement of a manhole cover. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application discloses a device for preventing displacement of a manhole cover to solve the problem that the manhole cover is easily displaced due to uneven stress caused by vibration or rolling of the pavement in the construction process of asphalt pavement or concrete pavement.

[0007] (II) Technical solutions

[0008] To achieve the above purpose, the present application is implemented by the following technical solutions: a device for preventing displacement of a manhole cover, comprising a well and a manhole cover, the well is opened in the ground, the manhole cover is embedded in the ground, and the upper surface of the manhole cover is in the same plane as the ground, the bottom of the manhole cover is fixedly connected with a base, the outer surface of the base is in close contact with the bottom wall of the top of the well, a displacement prevention device is arranged between the well and the base, and the displacement prevention device comprises:

[0009] The inner wall of the fixing sleeve is movably connected with a fixing rod, the opposite end of the fixing sleeve and the fixing rod is fixedly connected with a support, the top outer surface and the bottom outer surface of the support are rotatably connected with a first bearing and a second bearing, respectively, and the two first bearings and the two second bearings are in close contact with the inner ring surface of the base and the inner ring surface of the shaft well, respectively, for limiting the position of the base and the well cover.

[0010] An adjusting assembly is arranged between the fixing sleeve and the fixing rod, for adjusting the relative position between the fixing sleeve and the fixing rod and fixing.

[0011] Preferably, the outer surface of the support is fixedly sleeved with two first limiting rings and two second limiting rings.

[0012] Preferably, the two first limiting rings are respectively in close contact with the upper and lower surfaces of the first bearing, for limiting the position of the first bearing.

[0013] The two second limiting rings are respectively in close contact with the upper and lower surfaces of the second bearing, for limiting the position of the second bearing.

[0014] Preferably, the adjusting assembly comprises a fixing ring, the fixing ring is fixedly sleeved on the outer surface of the fixing sleeve, the end of the fixing ring is rotatably connected with a threaded sleeve, and the threaded sleeve is sleeved on the outer surface of the fixing rod.

[0015] Preferably, the outer surface of the fixing rod is provided with external threads, and the inner wall of the threaded sleeve is in threaded connection with the external threads.

[0016] Preferably, the outer surface of the fixing rod is symmetrically provided with two limiting grooves, and the inner wall of the fixing sleeve is fixedly connected with two limiting strips.

[0017] Preferably, the two limiting strips are respectively slidably connected on the inner wall of the two limiting grooves.

[0018] The present application discloses a well cover anti-displacement device, which has the following beneficial effects:

[0019] 1. The device for preventing displacement of the well lid, by setting the adjusting assembly, the relative position between the fixed sleeve and the fixed rod can be adjusted and fixed, so that when the outer ring surface of the base under the well lid is fitted with the bottom wall of the shaft top, the fixed rod is first moved inward relative to the fixed sleeve, and then the two first bearings at the end of the fixed sleeve and the fixed rod can be inserted into the inside of the base, and then the fixed rod is moved outward relative to the fixed sleeve again through the adjusting assembly, until the two first bearings and the two second bearings are tightly abutted with the inner ring surface of the base and the inner ring surface of the shaft respectively, for limiting the position of the base and the well lid relative to the shaft, so that during the subsequent construction activities, the base and the well lid will not be displaced due to the force of the two first bearings on the base, and the well lid can be rotated to rotate the base relative to the two first bearings, facilitating the adjustment of the well lid.

[0020] 2. The device for preventing displacement of the well lid, by setting two first limiting rings and two second limiting rings, the two first limiting rings are respectively fitted with the upper and lower surfaces of the first bearing for limiting the position of the first bearing, and the two second limiting rings are respectively fitted with the upper and lower surfaces of the second bearing for limiting the position of the second bearing, and by setting two limiting grooves and two limiting strips, the position of the fixed rod is limited, and the fixed rod can only slide relative to the fixed sleeve and cannot rotate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the present application is shown in the figure;

[0022] Figure 2 The exploded view of the present application is shown in the figure;

[0023] Figure 3 The structure of the fixed sleeve and the fixed rod of the present application is shown in the figure;

[0024] Figure 4 The structure of the strut, the first bearing and the second bearing of the present application is shown in the figure;

[0025] Figure 5 The structure of the adjusting assembly of the present application is shown in the figure.

[0026] In the figure: 1, shaft; 2, well lid; 201, base; 3, fixed sleeve; 301, fixed rod; 302, strut; 303, first bearing; 304, second bearing; 305, first limiting ring; 306, second limiting ring; 4, fixed ring; 401, threaded sleeve; 402, external thread; 403, limiting groove; 404, limiting strip. DETAILED DESCRIPTION

[0027] In the description of the present application, unless explicitly defined and limited, the terms "arranged", "mounted", "connected", "linked", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.

[0029] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0030] The embodiment of the present application discloses a device for preventing displacement of a well lid.

[0031] According to the drawings Figures 1-4 As shown, it comprises a shaft 1 and a well lid 2, the shaft 1 is opened in the ground, the well lid 2 is embedded on the ground, and the upper surface of the well lid 2 is in the same plane with the ground, the bottom of the well lid 2 is fixedly connected with a base 201, the outer circle surface of the base 201 is in close contact with the bottom wall of the top of the shaft 1; a displacement prevention device is arranged between the shaft 1 and the base 201; the displacement prevention device comprises:

[0032] A fixed sleeve 3, a fixed rod 301 is movably inserted on the inner wall of the fixed sleeve 3, the end of the fixed sleeve 3 and the fixed rod 301 away from each other is fixedly connected with a support 302, the top outer surface and the bottom outer surface of the support 302 are rotatably connected with a first bearing 303 and a second bearing 304, respectively, and the two first bearings 303 and the two second bearings 304 are in close contact with the inner circle surface of the base 201 and the inner circle surface of the shaft 1, respectively, for limiting the position of the base 201 and the well lid 2;

[0033] An adjusting assembly is arranged between the fixed sleeve 3 and the fixed rod 301, for adjusting the relative position between the fixed sleeve 3 and the fixed rod 301 and fixing.

[0034] The two first bearings 303 and the two second bearings 304 are tightly abutted with the inner ring surfaces of the base 201 and the shaft 1 respectively, so as to limit the positions of the base 201 and the well lid 2 relative to the shaft 1, so that the base 201 and the well lid 2 will not be displaced during subsequent construction activities, and the well lid 2 can be rotated, so that the base 201 is rotated relative to the two first bearings 303, facilitating adjustment of the well lid 2.

[0035] The two limiting strips 404 are respectively slidably connected to the inner walls of the two limiting grooves 403.

[0036] The two limiting grooves 403 and the two limiting strips 404 limit the position of the fixing rod 301, so that the fixing rod 301 can only slide relative to the fixing sleeve 3 and cannot rotate.

[0037] Working principle: first, when the outer ring surface of the base 201 below the well lid 2 is attached to the bottom wall of the top of the shaft 1, rotate the threaded sleeve 401, so that the threaded sleeve 401 is rotated relative to the fixing ring 4 and the fixing sleeve 3, because the threaded sleeve 401 is threadedly connected with the fixing rod 301 through the external thread 402, so that the fixing rod 301 moves inward relative to the fixing sleeve 3, and then the two first bearings 303 at the ends of the fixing sleeve 3 and the fixing rod 301 can be extended into the inside of the base 201.

[0038] Then reverse rotate the threaded sleeve 401, so that the fixing rod 301 moves outward relative to the fixing sleeve 3, until the two first bearings 303 and the two second bearings 304 are tightly abutted with the inner ring surfaces of the base 201 and the shaft 1 respectively, so as to limit the positions of the base 201 and the well lid 2 relative to the shaft 1, so that the base 201 and the well lid 2 will not be displaced during subsequent construction activities, and the well lid 2 can be rotated, so that the base 201 is rotated relative to the two first bearings 303, facilitating adjustment of the well lid 2.

[0039] According to the accompanying Figure 4 As shown, the outer surface of the support 302 is fixedly sleeved with two first limiting rings 305 and two second limiting rings 306.

[0040] The two first limiting rings 305 are respectively attached to the upper and lower surfaces of the first bearing 303, for limiting the position of the first bearing 303;

[0041] The two second limiting rings 306 are respectively attached to the upper and lower surfaces of the second bearing 304, for limiting the position of the second bearing 304.

[0042] According to the drawings Figure 3 The adjusting assembly comprises a fixing ring 4 fixedly sleeved on the outer surface of the fixing sleeve 3, and the end of the fixing ring 4 is rotationally connected with a threaded sleeve 401 sleeved on the outer surface of the fixing rod 301.

[0043] The outer surface of the fixing rod 301 is provided with an external thread 402, and the inner wall of the threaded sleeve 401 is threadedly connected with the external thread 402.

[0044] According to the drawings Figure 5 The outer surface of the fixing rod 301 is symmetrically provided with two limiting grooves 403, and the inner wall of the fixing sleeve 3 is symmetrically fixedly connected with two limiting strips 404.

[0045] The two limiting strips 404 are respectively slidingly connected with the inner walls of the two limiting grooves 403.

[0046] The two limiting grooves 403 and the two limiting strips 404 are arranged to limit the position of the fixing rod 301, so that the fixing rod 301 can only slide relative to the fixing sleeve 3 and cannot rotate.

[0047] Working principle: first, when the outer ring surface of the base 201 below the well lid 2 is attached to the bottom wall of the top of the well 1, the threaded sleeve 401 is rotated, so that the threaded sleeve 401 is rotated relative to the fixing ring 4 and the fixing sleeve 3, and because the threaded sleeve 401 is threadedly connected with the fixing rod 301 through the external thread 402, the fixing rod 301 is moved inward relative to the fixing sleeve 3, and then the two first bearings 303 at the ends of the fixing sleeve 3 and the fixing rod 301 can be extended into the inside of the base 201.

[0048] Then the threaded sleeve 401 is reversely rotated, so that the fixing rod 301 is moved outward relative to the fixing sleeve 3, until the two first bearings 303 and the two second bearings 304 are tightly abutted with the inner ring surface of the base 201 and the inner ring surface of the well 1 respectively, for limiting the positions of the base 201 and the well lid 2 relative to the well 1, so that during the subsequent construction activities, because the base 201 is subjected to the force of the two first bearings 303, the base 201 and the well lid 2 will not be displaced, and the well lid 2 can be rotated, so that the base 201 is rotated relative to the two first bearings 303, facilitating the adjustment of the well lid 2.

[0049] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for preventing displacement of a manhole cover, comprising a manhole (1) and a manhole cover (2), wherein the manhole (1) is located underground, the manhole cover (2) is embedded in the ground, and the upper surface of the manhole cover (2) is flush with the ground, and a base (201) is provided at the bottom of the manhole cover (2), wherein the outer surface of the base (201) is in contact with the bottom wall of the top of the manhole (1), characterized in that: The anti-displacement device is arranged between the shaft (1) and the base (201), and comprises: A fixing sleeve (3) is movably inserted with a fixing rod (301) on the inner wall of the fixing sleeve (3), and the fixing sleeve (3) and the fixing rod (301) are provided with a support (302) at the opposite end, the top outer surface and the bottom outer surface of the support (302) are rotatably connected with a first bearing (303) and a second bearing (304), respectively, and the two first bearings (303) and the two second bearings (304) are in close contact with the inner ring surface of the base (201) and the inner ring surface of the shaft (1), respectively, for limiting the position of the base (201) and the well lid (2); An adjusting assembly is arranged between the fixing sleeve (3) and the fixing rod (301) for adjusting the relative position between the fixing sleeve (3) and the fixing rod (301) and fixing; The outer surface of the support (302) is fixedly sleeved with two first limiting rings (305) and two second limiting rings (306); The two first limiting rings (305) are respectively in close contact with the upper and lower surfaces of the first bearing (303); The two second limiting rings (306) are respectively in close contact with the upper and lower surfaces of the second bearing (304); The adjusting assembly comprises a fixing ring (4) fixedly sleeved on the outer surface of the fixing sleeve (3), and the end of the fixing ring (4) is rotatably connected with a threaded sleeve (401) sleeved on the outer surface of the fixing rod (301).

2. A device for preventing displacement of a manhole cover as defined in claim 1, characterized in that: The outer surface of the fixing rod (301) is provided with an external thread (402), and the inner wall of the threaded sleeve (401) is threadedly connected with the external thread (402).

3. A device for preventing displacement of a manhole cover as defined in claim 1, characterized in that: The outer surface of the fixing rod (301) is symmetrically provided with two limiting grooves (403), and the inner wall of the fixing sleeve (3) is symmetrically provided with two limiting strips (404).

4. A device for preventing displacement of a manhole cover as defined in claim 3, characterized in that: The two limiting strips (404) are respectively slidably connected on the inner walls of the two limiting grooves (403).

Images