A device for preventing cable trench from settling

Abstract

The invention discloses a device for preventing cable trench from settling, comprising anti-settling units arranged at intervals along the length direction of a prefabricated cable trench, wherein a single anti-settling unit comprises: a shell slidably arranged on the outer periphery of the prefabricated cable trench; a telescopic drive mechanism arranged in the shell, one end of which is used to be connected to the bottom of the prefabricated cable trench, and the other end of the telescopic drive mechanism is against the bottom plate of the shell; a first balance sensor for detecting whether the bottom plate is tilted; a second balance sensor for detecting whether the prefabricated cable trench is tilted; and a controller connected to the telescopic drive mechanism, the first balance sensor and the second balance sensor, wherein when the first balance sensor detects that the bottom plate is tilted, the controller controls the telescopic drive mechanism to extend so as to make the bottom plate sink downward and lift the prefabricated cable trench upward; when the second balance sensor detects that the prefabricated cable trench returns to the horizontal level, the controller controls the telescopic drive mechanism to stop moving, thereby preventing the cable trench from settling.

Description

Technical Field

[0001] The present invention relates to the technical field of cable trench auxiliary equipment, and more specifically to a device for preventing cable trench from settling. Background Art

[0002] As an indispensable infrastructure in substations, cable trenches are mainly used to place and protect cables to avoid damage to the cables and affect the safe operation of the substation. The internal environment of the cable trench is crucial to the safe operation of the cables and the extent of damage caused by faults.

[0003] The cable trench in the prior art is usually laid directly in the soil. However, the soil is easily affected by groundwater and ground objects and settles. When the soil under the cable trench settles, the cable trench will also settle, eventually causing the cables in the cable trench to twist and pull, causing the cables to heat up or break, and even causing serious accidents.

[0004] Therefore, how to provide a cable trench settlement prevention device that can effectively prevent the cable trench from settling due to soil settlement is a problem that urgently needs to be solved by those skilled in the art. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a device for preventing cable trench from settling, which can prevent the cable trench from settling when the soil under the cable trench settles.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A device for preventing cable trench settlement, comprising anti-settling units arranged in the soil at intervals along the length direction of a prefabricated cable trench, wherein a single anti-settling unit comprises:

[0008] A housing slidably wrapped around the outer periphery of the prefabricated cable trench;

[0009] A telescopic drive mechanism is disposed in the housing, one end of which is connected to the bottom of the prefabricated cable trench, and the other end of the telescopic drive mechanism is in contact with the bottom plate of the housing;

[0010] a first balance sensor for detecting whether the base plate is tilted;

[0011] a second balance sensor for detecting whether the prefabricated cable trench is tilted;

[0012] A controller connected to the telescopic drive mechanism, the first balance sensor and the second balance sensor, wherein when the first balance sensor detects that the base plate is tilted, the controller controls the telescopic drive mechanism to extend so as to sink the base plate downward and lift the prefabricated cable trench upward; when the second balance sensor detects that the prefabricated cable trench returns to a horizontal state, the controller controls the telescopic drive mechanism to stop moving.

[0013] Preferably, the single anti-settling unit further comprises:

[0014] Two movable support columns arranged in the housing and used to support the prefabricated cable trench when the prefabricated cable trench is in a horizontal state so as to relieve the telescopic drive mechanism from being subjected to force, one end of the two movable support columns being used to be rotatably connected to the bottom of the prefabricated cable trench, and the other end of the two movable support columns respectively abutting against the bottom plate, and in the initial state, the movable support columns are tilted so that during the extension of the telescopic drive mechanism, the movable support columns are rotated by gravity to a position where their free ends abut against the bottom plate;

[0015] A limiting member is arranged on the bottom plate and is used to limit the movable support column.

[0016] Preferably, the telescopic driving mechanism is a jack, and the support arm of the jack is in conflict with the bottom plate.

[0017] Preferably, it also includes a guide member for guiding the rotation of the movable support column during the extension of the support arm, and the guide member is connected to the support arm.

[0018] Preferably, the guide member includes a transverse column vertically connected to the support arm, the transverse column is provided with a first guide long hole extending along its length direction, the movable support column is provided with a second guide long hole extending along its length direction, the movable support column and the transverse column are connected by a limiting bolt, and the limiting bolt can be moved along the first guide long hole and the second guide long hole respectively and pass through the first guide long hole and the second guide long hole.

[0019] Preferably, the limiting member includes a plurality of latching teeth protruding from the inner side surface of the bottom plate and used to abut against the free end of the movable support column to prevent the movable support column from moving along the inner side surface of the bottom plate.

[0020] Preferably, it also includes a filling channel for conveniently filling concrete or soil into the bottom of the base plate when the soil settlement depth is greater than the maximum extension length of the telescopic drive mechanism, and the filling channel is connected to the bottom of the base plate.

[0021] Preferably, the latching teeth include:

[0022] A first latching tooth and a second latching tooth for limiting the initial position and the rotation limit position of the movable support column respectively, wherein the first latching tooth and the second latching tooth are both fixedly arranged on the inner side surface of the bottom plate;

[0023] A third latching tooth is used to limit the movable support column between the initial position and the rotation limit position, the third latching tooth is connected to the lifting drive mechanism, and the lifting drive mechanism is connected to the controller. When concrete or soil is filled into the bottom of the base plate through the filling channel, the controller controls the lifting drive mechanism to operate to lower the third latching tooth, so that the free end of the movable support column moves along the inner side surface of the base plate when the base plate is lifted.

[0024] Preferably, a first sensor is provided at the first latching tooth for detecting whether the movable support column collides with the first latching tooth;

[0025] A second sensor is provided at the second latching tooth for detecting whether the movable support column collides with the second latching tooth;

[0026] It also includes an alarm connected to the controller. When the second sensor detects that the movable support column collides with the second latch tooth and the second balance sensor detects that the prefabricated cable trench is still tilted, the controller controls the alarm to send a first alarm signal to the monitoring background so that maintenance personnel can fill concrete or soil into the bottom of the base plate through the filling channel, and at the same time the controller controls the telescopic drive mechanism to retract; when the first sensor detects that the movable support column collides with the first latch tooth, the controller controls the alarm to send a second alarm signal to the monitoring background so that maintenance personnel can stop filling concrete or soil.

[0027] Preferably, the housing comprises:

[0028] A side plate vertically connected to the bottom plate and used to surround the outside of the prefabricated cable trench;

[0029] A guide plate is vertically connected to the side plate and is used for slidingly cooperating with the side wall of the prefabricated cable trench.

[0030] In the cable trench settlement prevention device provided by the present invention, a single settlement prevention unit detects whether the bottom plate and the prefabricated cable trench are tilted through a first balance sensor and a second balance sensor, and enables a controller to control the movement of the telescopic drive mechanism according to the detection signals of the first balance sensor and the second balance sensor, respectively. Then, a plurality of settlement prevention units arranged at intervals work together to ensure the original position and horizontal state of the prefabricated cable trench, thereby preventing the prefabricated cable trench from settling with the settlement of soil, so as to protect the cables laid in the prefabricated cable trench from being twisted and pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 A front view of a cable trench settlement prevention device provided by a specific embodiment of the present invention;

[0033] Figure 2 for Figure 1 A side view of the cable trench subsidence prevention device shown.

[0034] Figure 1 and Figure 2 The reference numerals in the figures are as follows:

[0035] 11 is a bottom plate, 12 is a side plate, 13 is a guide plate, 2 is a telescopic drive mechanism, 3 is a first balance sensor, 4 is a second balance sensor, 5 is a movable support column, 51 is a second guide long hole, 6 is a transverse column, 61 is a first guide long hole, 7 is a latch, 8 is a filling channel, 9 is a prefabricated cable trench, 91 is a cable support frame, 92 is a cable, and 93 is a cable trench cover. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The core of the present invention is to provide a device for preventing cable trench from settling, which can prevent the cable trench from settling when the soil under the cable trench settles.

[0038] Please refer to Figure 1-Figure 2 , Figure 1 A front view of a cable trench settlement prevention device provided by a specific embodiment of the present invention; Figure 2 for Figure 1 A side view of the device for preventing cable trench subsidence is shown.

[0039] The present invention provides a device for preventing cable trench settlement, comprising a plurality of anti-settling units for preventing a prefabricated cable trench 9 from settling. The plurality of anti-settling units are arranged in the soil at intervals along the length direction of the prefabricated cable trench 9. The spacing between two adjacent anti-settling units is preferably 5 to 10 m, that is, during construction, an anti-settling unit is installed for the prefabricated cable trench 9 every 5 to 10 m along the length direction of the prefabricated cable trench 9. The present invention does not limit the total number of anti-settling units, which can be specifically determined according to the length of the prefabricated cable trench 9.

[0040] It should be noted that the specific structure of the prefabricated cable trench 9 in the present invention is the same as the structure of a conventional cable trench in the prior art. A cable support frame 91 is fixedly provided inside the prefabricated cable trench 9, and a cable 92 is placed on the cable support frame 91. A cable trench cover 93 is provided on the upper part of the prefabricated cable trench 9 to prevent dirt or garbage from entering the prefabricated cable trench 9.

[0041] A single anti-settling unit includes a housing, a telescopic driving mechanism 2, a first balance sensor 3, a second balance sensor 4 and a controller.

[0042] Specifically, the telescopic drive mechanism 2 is arranged in the outer shell, one end of the telescopic drive mechanism 2 is used to be connected to the bottom of the prefabricated cable trench 9, and the other end is in conflict with the bottom plate 11 of the outer shell, that is, the telescopic drive mechanism 2 is arranged between the prefabricated cable trench 9 and the bottom plate 11. On the one hand, it is used to support the prefabricated cable trench 9, and on the other hand, when the soil settles, it is used to push the bottom plate 11 downward by extending the telescopic drive mechanism 2, and at the same time lift the prefabricated cable trench 9 upward, thereby ensuring that the prefabricated cable trench 9 returns to its original position and keeps the prefabricated cable trench 9 in a horizontal state.

[0043] The telescopic driving mechanism 2 is connected to a controller, so that the controller can control the telescopic driving mechanism 2 to work.

[0044] The present invention does not limit the specific structure of the telescopic drive mechanism 2, as long as it has a certain supporting force and can achieve the telescopic function.

[0045] The housing can be slidably wrapped around the outer periphery of the prefabricated cable trench 9 to prevent mud from entering the interior of the housing and affecting the extension and retraction of the telescopic drive mechanism 2.

[0046] It can be understood that when the telescopic driving mechanism 2 is extended to push the bottom plate 11 to sink downward, the housing slides along the outer side wall of the prefabricated cable trench 9 to descend along with the bottom plate 11.

[0047] In order to reduce the friction between the outer shell and the outer wall of the prefabricated cable trench 9, as a preferred solution, the outer shell includes a side plate 12 vertically connected to the bottom plate 11 and a guide plate 13 vertically connected to the side plate 12. The side plate 12 is used to surround the outer side of the prefabricated cable trench 9 to prevent soil from entering the interior of the outer shell. The guide plate 13 is used to slide with the side wall of the prefabricated cable trench 9 to guide the lifting and lowering of the outer shell.

[0048] The first balance sensor 3 is connected to the controller and is used to detect whether the bottom plate 11 is tilted. It can be understood that when the soil settles, the bottom plate 11 will be tilted. Therefore, when the first balance sensor 3 detects that the bottom plate 11 is tilted, it indicates that the soil has settled. At this time, the controller controls the telescopic drive mechanism 2 to extend according to the detection signal of the first balance sensor 3, so that the bottom plate 11 settles downward and the prefabricated cable trench 9 is lifted upward to prevent the prefabricated cable trench 9 from settling.

[0049] The second balance sensor 4 is connected to the controller and is used to detect whether the prefabricated cable trench 9 is tilted. It can be understood that in order for the prefabricated cable trench 9 to play a better protective role on the cables 92 laid therein, the horizontal state of the prefabricated cable trench 9 must be ensured. Therefore, when the second balance sensor 4 detects that the prefabricated cable trench 9 has returned to the horizontal state, the controller controls the telescopic drive mechanism 2 to stop the action according to the detection signal of the second balance sensor 4. At this point, the initial state of the prefabricated cable trench 9 can be maintained to protect the cables 92 from twisting and pulling.

[0050] It can be seen from this that in the anti-cable trench settlement device provided by the present invention, a single anti-settling unit detects whether the bottom plate 11 and the prefabricated cable trench 9 are tilted through the first balance sensor 3 and the second balance sensor 4, and enables the controller to control the movement of the telescopic drive mechanism 2 according to the detection signals of the first balance sensor 3 and the second balance sensor 4, respectively, and then the original position and horizontal state of the prefabricated cable trench 9 are guaranteed through the joint action of the plurality of anti-settling units arranged at intervals, thereby preventing the prefabricated cable trench 9 from settling with the settlement of the soil, so as to protect the cables 92 laid in the prefabricated cable trench 9 from twisting and pulling, etc.

[0051] In order to protect the telescopic drive mechanism 2 and increase the service life of the telescopic drive mechanism 2, on the basis of the above embodiment, the single anti-subsidence unit also includes two movable support columns 5 arranged in the outer shell and a limiter arranged on the bottom plate 11, and the two movable support columns 5 are used to support the prefabricated cable trench 9 when the prefabricated cable trench 9 is in a horizontal state, so that the telescopic drive mechanism 2 can be retracted to avoid the telescopic drive mechanism 2 being subjected to force, thereby avoiding damage to the telescopic drive mechanism 2 and increasing the service life of the telescopic drive mechanism 2.

[0052] Specifically, one end of the two movable support columns 5 is used to be rotatably connected to the bottom of the prefabricated cable trench 9, and the other ends of the two movable support columns 5 are respectively in contact with the bottom plate 11. In the initial state, the movable support columns 5 are tilted so that during the extension of the telescopic drive mechanism 2, the movable support columns 5 can rotate to a position where their free ends are in contact with the bottom plate 11 by gravity. In other words, during the extension of the telescopic drive mechanism 2, the free ends of the movable support columns 5 are always in contact with the bottom plate 11. When the telescopic drive mechanism 2 stops extending, the two movable support columns 5 are supported between the prefabricated cable trench 9 and the bottom plate 11 to support the prefabricated cable trench 9. At this time, the telescopic drive mechanism 2 can be retracted to avoid the telescopic drive mechanism 2 being subjected to force.

[0053] Considering the specific arrangement of the two movable support columns 5, preferably, the two movable support columns 5 are symmetrically arranged about the center line of the prefabricated cable trench 9, so that the prefabricated cable trench 9 is subjected to a relatively uniform support force. Figure 1 As shown, the two movable support columns 5 are preferably rotatably connected to the two sides of the bottom of the prefabricated cable trench 9. At this time, in order to save space, it is further preferred that the two movable support columns 5 are inclined toward the bottom of the prefabricated cable trench 9. Considering the simplicity of the overall structure, the lengths of the two movable support columns 5 are equal.

[0054] It should be noted that the present invention does not limit the rotational connection method between the movable support column 5 and the prefabricated cable trench 9. For example, a connecting piece can be pre-arranged at the bottom of the prefabricated cable trench 9, and the movable support column 5 and the connecting piece can be hinged to achieve the rotational connection between the movable support column 5 and the bottom of the prefabricated cable trench 9. The connection between the movable support column 5 and the connecting piece can also be achieved by bolts to avoid separation of the movable support column 5 from the connecting piece. It should be noted that at this time, the movable support column 5 can rotate relative to the bolt.

[0055] The limiting member is used to limit the movable support column 5 to ensure that the movable support column 5 firmly supports the prefabricated cable trench 9 and prevents the movable support column 5 from sliding along the inner side surface of the bottom plate 11 after the telescopic drive mechanism 2 is retracted.

[0056] Considering the simplicity and feasibility of the specific structure of the telescopic drive mechanism 2, as a preferred solution, based on the above embodiment, the telescopic drive mechanism 2 is a jack, and the support arm of the jack is in conflict with the bottom plate 11. At this time, the fixing seat of the jack is installed at the bottom of the prefabricated cable trench 9.

[0057] In order to make the movable support column 5 rotate smoothly during the extension of the support arm, based on the above embodiment, it also includes a guide member for guiding the rotation of the movable support column 5 during the extension of the support arm, and the guide member is connected to the support arm.

[0058] That is to say, in this embodiment, the movable support column 5 is guided by the guide member to rotate along a preset path, so that the movable support column 5 rotates more smoothly and avoids the movable support column 5 from getting stuck or stuck during the rotation process.

[0059] Taking into account the simplicity of structure and ease of implementation of the guide member, on the basis of the above embodiment, the guide member includes a transverse column 6 vertically connected to the support arm, the transverse column 6 is provided with a first guide long hole 61 extending along its length direction, the movable support column 5 is provided with a second guide long hole 51 extending along its length direction, the movable support column 5 and the transverse column 6 are connected by a limiting bolt, and the limiting bolt can be moved along the first guide long hole 61 and the second guide long hole 51 respectively and pass through the first guide long hole 61 and the second guide long hole 51.

[0060] It can be understood that during the extension of the support arm, the transverse column 6 descends as the support arm extends. At this time, restricted by the first guide strip hole 61, the limit bolt moves along the second guide strip hole 51. At the same time, since the movable support column 5 rotates due to gravity, the limit bolt moves along the first guide strip hole 61 restricted by the second guide strip hole 51. The combined movement of the limit bolt causes the movable support column 5 and the transverse column 6 to limit each other to ensure that the movement of both is more stable.

[0061] Taking into account the specific structure of the limiting member for limiting the free end of the movable support column 5, on the basis of any of the above embodiments, the limiting member includes a plurality of latch teeth 7 protruding from the inner side surface of the base plate 11, and the latch teeth 7 are used to abut against the free end of the movable support column 5 to prevent the movable support column 5 from moving along the inner side surface of the base plate 11.

[0062] The present embodiment does not specifically limit the specific number of the latch teeth 7 and the distance between two adjacent latch teeth 7, and those skilled in the art can set them according to actual needs.

[0063] Preferably, the side of the latch 7 facing the movable support column 5 is provided with an inclined surface, and the other side of the latch 7 is a vertical surface, so that when the movable support column 5 rotates by gravity, the free end of the movable support column 5 crosses over the latch 7 along the inclined surface of the latch 7, so that the free end of the movable support column 5 can more easily cross over the latch 7. When the movable support column 5 supports the prefabricated cable trench 9, the free end of the movable support column 5 is abutted against the vertical surface of the latch 7, so that the movable support column 5 is fixed more firmly.

[0064] In addition, when the settlement depth of the soil is greater than the maximum extension length of the telescopic drive mechanism 2, in order to prevent the prefabricated cable trench 9 from settling, on the basis of the above embodiment, it also includes a filling channel 8 for filling the bottom of the bottom plate 11 with concrete or soil. The filling channel 8 is connected to the bottom of the bottom plate 11, so that when the settlement depth of the soil is greater than the maximum extension length of the telescopic drive mechanism 2, concrete or soil is filled into the bottom of the bottom plate 11 through the filling channel 8, thereby lifting the bottom plate 11 and further lifting the prefabricated cable trench 9 to its original position.

[0065] Preferably, the filling channel 8 is arranged along the side wall of the housing.

[0066] The present invention does not limit the pore size of the filling channel 8, and those skilled in the art can select it according to actual needs.

[0067] It can be understood that when the base plate 11 is lifted upward, the base plate 11 generates a thrust on the free end of the movable support column 5, so that the movable support column 5 overcomes gravity and rotates in the opposite direction. In order to prevent the latch 7 from hindering the free end of the movable support column 5 from moving along the inner side surface of the base plate 11, on the basis of the above embodiment, the latch 7 includes a first latch, a second latch and a third latch, the first latch is used to limit the initial position of the movable support column 5, the second latch is used to limit the rotation limit position of the movable support column 5, and the third latch is used to limit the movable support column 5 between the initial position and the rotation limit position; the first latch and the second latch are both fixed to the inner side surface of the base plate 11, the third latch is connected to the lifting drive mechanism, and the lifting drive mechanism is connected to the controller. When concrete or soil is filled into the bottom of the base plate 11 through the filling channel 8, the controller controls the lifting drive mechanism to move, so that the third latch is lowered, so that when the base plate 11 is lifted, the free end of the movable support column 5 moves along the inner side surface of the base plate 11.

[0068] That is to say, in this embodiment, when the base plate 11 is lifted, the third latching tooth is lowered by the lifting drive mechanism so that the third latching tooth is flush with or lower than the inner side surface of the base plate 11, thereby allowing the third latching tooth to avoid movement of the free end of the movable support column 5.

[0069] It can be understood that when the settlement depth of the soil is within the telescopic range of the telescopic drive mechanism 2, the anti-settling unit works normally. At this time, the controller can control the action of the lifting drive mechanism so that the lifting drive mechanism drives the third latch tooth to rise to a preset position to limit the movable support column 5.

[0070] It should be noted that the rotation limit position of the movable support column 5 corresponds to the maximum extension length of the telescopic drive mechanism 2, that is, when the telescopic drive mechanism 2 is extended to the maximum distance, the movable support column 5 rotates to the rotation limit position. At this time, when the soil continues to settle, the anti-settlement unit cannot be used to prevent the prefabricated cable trench 9 from settling, and it is necessary to fill the filling channel 8 with concrete or soil to prevent the prefabricated cable trench 9 from settling.

[0071] Taking into account the timing of filling the filling channel 8 with concrete or soil and the timing of stopping the filling, on the basis of the above embodiment, a first sensor for detecting whether the movable support column 5 collides with the first tooth is provided at the first tooth; a second sensor for detecting whether the movable support column 5 collides with the second tooth is provided at the second tooth; at this time, the single anti-subsidence unit also includes an alarm for sending an alarm signal to the monitoring background, and the alarm is connected to the controller.

[0072] When the second sensor detects that the movable support column 5 collides with the second latch tooth, and at this time the second balance sensor 4 detects that the prefabricated cable trench 9 is still tilted, it indicates that the movable support column 5 has been rotated to the extreme position, and the prefabricated cable trench 9 has not yet returned to the horizontal state, which means that the settlement depth of the soil is greater than the maximum extension length of the telescopic drive mechanism 2, and the anti-sedimentation unit cannot be used to prevent the prefabricated cable trench 9 from settling. At this time, the controller controls the alarm to send a first alarm signal to the monitoring background based on the detection signals of the second sensor and the second balance sensor 4, so that the maintenance personnel fill the bottom of the base plate 11 with concrete or soil through the filling channel 8. At the same time, the controller controls the telescopic drive mechanism 2 to retract to avoid the telescopic drive mechanism 2 affecting the lifting of the base plate 11 during the filling of concrete or soil.

[0073] When the first sensor detects that the movable support column 5 hits the first latch, it indicates that the movable support column 5 returns to the initial position, that is, the prefabricated cable trench 9 is supported to the original position. At this time, the controller controls the alarm to send a second alarm signal to the monitoring background according to the detection signal of the first sensor, so that the maintenance personnel stop filling concrete or soil. At this time, the third latch can be driven to rise by the lifting drive mechanism to facilitate the normal operation of the anti-settling unit.

[0074] It can be understood that the first sensor, the second sensor, the second balance sensor 4 and the alarm all correspond one-to-one to the anti-settling units. Therefore, when a certain alarm sends a first alarm signal to the monitoring background, the maintenance personnel can quickly locate the corresponding anti-settling unit to fill the filling channel 8 corresponding to the anti-settling unit.

[0075] It should be noted that in the above embodiments, the specific structures and detection principles of the first sensor, the second sensor, the first balance sensor 3 and the second balance sensor 4 are not limited, and any conventional sensor in the prior art that can achieve the corresponding functions can be used.

[0076] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely 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.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The above is a detailed introduction to the cable trench settlement prevention device provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device to prevent cable trench settlement, It is characterized in that The invention comprises anti-settling units which are arranged in the soil at intervals along the length direction of a prefabricated cable trench (9); a cable support frame (91) is fixedly arranged inside the prefabricated cable trench (9); a cable (92) is placed on the cable support frame (91); and a single anti-settling unit comprises: A housing slidably wrapped around the outer periphery of the prefabricated cable trench (9); A telescopic drive mechanism (2) is disposed in the housing and has one end connected to the bottom of the prefabricated cable trench (9), and the other end of the telescopic drive mechanism (2) is in contact with the bottom plate (11) of the housing; A first balance sensor (3) for detecting whether the bottom plate (11) is tilted; a second balance sensor (4) for detecting whether the prefabricated cable trench (9) is tilted; a controller connected to the telescopic drive mechanism (2), the first balance sensor (3) and the second balance sensor (4); when the first balance sensor (3) detects that the bottom plate (11) is tilted, the controller controls the telescopic drive mechanism (2) to extend so that the bottom plate (11) sinks downward and the prefabricated cable trench (9) is lifted upward; when the second balance sensor (4) detects that the prefabricated cable trench (9) returns to a horizontal state, the controller controls the telescopic drive mechanism (2) to stop moving; The single anti-settling unit further comprises: Two movable support columns (5) are arranged in the housing and are used to support the prefabricated cable duct (9) when the prefabricated cable duct (9) is in a horizontal state so as to relieve the telescopic drive mechanism (2) from stress. One end of the two movable support columns (5) is used to be rotatably connected to the bottom of the prefabricated cable duct (9), and the other end is respectively in contact with the bottom plate (11). In the initial state, the movable support columns (5) are tilted so that during the extension of the telescopic drive mechanism (2), the movable support columns (5) are rotated by gravity to a position where their free ends are in contact with the bottom plate (11); A limiting member provided on the bottom plate (11) and used for limiting the position of the movable support column (5).

2. The cable trench subsidence prevention device according to claim 1, It is characterized in that The telescopic driving mechanism (2) is a jack, and the support arm of the jack is in conflict with the bottom plate (11).

3. The cable trench subsidence prevention device according to claim 2, It is characterized in that It also comprises a guide member for guiding the rotation of the movable support column (5) during the extension process of the support arm, and the guide member is connected to the support arm.

4. The cable trench subsidence prevention device according to claim 3, It is characterized in that The guide member comprises a transverse column (6) vertically connected to the support arm, the transverse column (6) being provided with a first guide strip hole (61) extending along its length direction, the movable support column (5) being provided with a second guide strip hole (51) extending along its length direction, the movable support column (5) and the transverse column (6) being connected via a limiting bolt, the limiting bolt being movable along the first guide strip hole (61) and the second guide strip hole (51) respectively and being passed through the first guide strip hole (61) and the second guide strip hole (51).

5. The cable trench subsidence prevention device according to any one of claims 1 to 4, It is characterized in that The limiting member comprises a plurality of latching teeth (7) protruding from the inner side surface of the bottom plate (11) and used to abut against the free end of the movable support column (5) to prevent the movable support column (5) from moving along the inner side surface of the bottom plate (11).

6. The cable trench subsidence prevention device according to claim 5, It is characterized in that It also includes a filling channel (8) for facilitating filling of concrete or soil into the bottom of the base plate (11) when the soil settlement depth is greater than the maximum extension length of the telescopic drive mechanism (2); the filling channel (8) is in communication with the bottom of the base plate (11).

7. The cable trench subsidence prevention device according to claim 6, It is characterized in that The latching teeth (7) include: A first latching tooth and a second latching tooth for limiting the initial position and the rotation limit position of the movable support column (5) respectively, wherein the first latching tooth and the second latching tooth are both fixedly arranged on the inner side surface of the bottom plate (11); A third latching tooth is used to limit the movable support column (5) between the initial position and the rotation limit position, the third latching tooth is connected to a lifting drive mechanism, and the lifting drive mechanism is connected to the controller. When concrete or soil is filled into the bottom of the base plate (11) through the filling channel (8), the controller controls the lifting drive mechanism to move so that the third latching tooth is lowered, so that when the base plate (11) is lifted, the free end of the movable support column (5) moves along the inner side surface of the base plate (11).

8. The cable trench subsidence prevention device according to claim 7, It is characterized in that A first sensor is provided at the first latching tooth for detecting whether the movable support column (5) collides with the first latching tooth; A second sensor is provided at the second latching tooth for detecting whether the movable support column (5) collides with the second latching tooth; It also includes an alarm connected to the controller. When the second sensor detects that the movable support column (5) collides with the second latch tooth and the second balance sensor (4) detects that the prefabricated cable trench (9) is still tilted, the controller controls the alarm to send a first alarm signal to the monitoring background, so that maintenance personnel can fill concrete or soil into the bottom of the base plate (11) through the filling channel (8), and at the same time, the controller controls the telescopic drive mechanism (2) to retract; when the first sensor detects that the movable support column (5) collides with the first latch tooth, the controller controls the alarm to send a second alarm signal to the monitoring background, so that the maintenance personnel can stop filling concrete or soil.

9. The cable trench subsidence prevention device according to claim 5, It is characterized in that The housing comprises: A side plate (12) vertically connected to the bottom plate (11) and used to surround the outer side of the prefabricated cable trench (9); A guide plate (13) vertically connected to the side plate (12) and used for slidingly engaging with the side wall of the prefabricated cable trench (9).

Images