A temporary support device for a pipe trench

Abstract

The application relates to a pipeline trench temporary supporting device and relates to the technical field of pipeline installation. The device comprises supporting plates abutting against two opposite side walls of a trench, two supporting plates are connected through an extension assembly, a connecting plate is arranged on the extension assembly, an installation plate is arranged below the connecting plate, the installation plate comprises two support plates hinged through hinges, abutting assemblies for abutting against the supporting plates are arranged on the support plates, a driving mechanism is arranged on the connecting plate, the driving mechanism is connected with the abutting assemblies through connecting rods, the driving mechanism rotates, the connecting rods drive the abutting assemblies to move towards the supporting plates or away from the supporting plates. The application has the effect that the supporting plates are convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipeline installation, in particular to a pipeline trench temporary support device. BACKGROUND

[0002] At present, in the pipeline construction of municipal engineering, it is often necessary to dig a trench in advance and then install or construct the pipeline. Since there is a risk of soil collapse, in order to ensure the personal safety of construction personnel, a support structure is needed to support the trench during the trenching process.

[0003] In the related art, a trench support structure is disclosed in Chinese Patent No. CN207484490U, which is characterized in that it includes two groups of enclosure plates, multiple groups of columns, and multiple groups of truss mechanisms. The two groups of enclosure plates are arranged side by side on both sides of the base trench. The enclosure plate includes a plurality of groups of spliced enclosure plate units. The enclosure plate unit includes a rectangular base plate and wing plates symmetrically arranged at both ends of the base plate in the length direction. A plurality of through holes that can accommodate the columns are arrayed on both wing plates. The columns are vertically arranged through multiple groups of vertically arranged enclosure plate unit arrays on both sides of the base trench. The truss mechanisms are detachably arranged between adjacent enclosure plate units on both sides of the base trench.

[0004] During installation, the guard plates are first installed at the sidewalls on both sides of the trench, and then the support rods are installed between the two guard plates. The distance between the two guard plates needs to be controlled during installation, and then the support rods are installed, which makes the operation of installing and removing the guard plates inconvenient, and thus needs to be improved. SUMMARY

[0005] In order to improve the problem of inconvenient operation of installing and removing the guard plates, the present application provides a pipeline trench temporary support device.

[0006] The pipeline trench temporary support device provided by the present application adopts the following technical scheme:

[0007] A pipeline trench temporary support device for supporting a trench, comprising:

[0008] Two support plates vertically arranged and abutting on the opposite sidewalls of the trench, respectively;

[0009] A telescopic assembly horizontally arranged between the two support plates, and the end of the telescopic assembly is fixedly connected with the support plate, and a connecting plate is connected below the middle part of the telescopic assembly;

[0010] An installation plate located between the two support plates and below the telescopic assembly, the installation plate being connected with the telescopic assembly through the connecting plate, the installation plate including two hingedly connected support plates, and each end of the support plate being provided with an abutting assembly that can be extended outward for abutting with the support plate;

[0011] A driving mechanism is arranged on the connecting plate, and the driving mechanism is connected with the abutting component through a connecting rod, and is used for driving the connecting rod to drive the abutting component to move towards the direction of approaching or moving away from the support plate

[0012] By adopting the technical scheme, when in use, the two support plates are placed into the groove and adjusted to appropriate positions, and then the sides of the two support plates away from each other are abutted against the inner walls of the corresponding grooves; in the initial state, the sides of the two support plates away from each other are inclined downward; in order to abut the support plates against the inner walls of the groove, the two support plates are rotated upward about the sides close to each other until the support plates are rotated to the horizontal state, that is, the sides of the two support plates close to each other abut against each other, and the support plates are limited to continue to rotate upward.

[0013] At this time, the driving mechanism is started to drive the connecting rod to move, so that the abutting component is abutted against the support plate to support the two support plates, that is, the support plates are abutted against the inner walls of the groove, and the two support plates are limited to move towards each other, thereby supporting the groove. It is only necessary to use the driving mechanism to make the abutting component push the support plate to abut against the inner wall of the groove, and the operation is convenient. When the support plate needs to be disassembled, the connecting part of the two support plates is directly pushed upward, so that the two support plates are flipped downward about the sides close to each other, thereby driving the abutting component to rotate downward at the same time, so that the abutting component is separated from the support plate, the support plate loses the force of being pressed against the inner wall of the groove, so that the two support plates can move towards each other until the inner wall of the groove is separated, and the support plate is convenient to move out of the groove. The support plate can be disassembled by directly pushing the middle part of the installation plate, which is labor-saving and convenient to disassemble.

[0014] Optionally, the telescopic assembly comprises:

[0015] Two sliding rods, the two sliding rods are on the same horizontal line, and the ends of the two sliding rods away from each other are fixed with the corresponding support plates;

[0016] Two fixed plates, the two fixed plates are arranged on the two sides of the two sliding rods and are symmetric about the central axis of the sliding rod, a sliding block (211) is fixed on the side wall of the sliding rod (21), a sliding groove (221) is formed in the side wall of the fixed plate (22) in the horizontal direction, the sliding block (211) is inserted into the sliding groove (221) and moves in the sliding groove (221), and the connecting plate is vertically arranged and fixedly connected below one of the fixed plates.

[0017] By adopting the technical scheme, when the two supporting plates are placed in the groove, the two supporting plates are then moved away from each other, the sliding rods are driven to move away from the fixed plate, the overall length of the two sliding rods and the fixed plate is lengthened, and the supporting plates are attached to the inner wall of the groove, so that the length of the telescopic assembly can meet different distances between the two supporting plates, and the two supporting plates always maintain a parallel and connected relationship, and the stability of the supporting plate structure is improved.

[0018] Optionally, the bottom of the connecting plate is provided with a fixing assembly, and the fixing assembly comprises:

[0019] Two hanging plates are arranged at edges of the two supporting plates close to each other.

[0020] A receiving plate is horizontally fixed at the bottom of the connecting plate and is used for supporting the hanging plate, and when the hanging plate is placed on the receiving plate, the supporting plate is in a horizontal state.

[0021] By adopting the technical scheme, when the two supporting plates are turned up to a horizontal state with the edges close to each other as the axis, the hanging plate is moved to the receiving plate along with the movement of the supporting plate and abuts against the upper surface of the receiving plate, so that the receiving plate supports the hanging plate, and the supporting of the supporting plate is realized, and the supporting plate cannot be vertically moved downward under the action of gravity. When the connecting part of the two supporting plates is jacked up, the hanging plate is moved away from the receiving plate under the driving of the supporting plate, and the hanging plate is separated from the receiving plate, so that the receiving plate does not interfere with the disassembly of the supporting plate.

[0022] Optionally, the fixed plate is provided with a limiting assembly, and the limiting assembly comprises:

[0023] Two limiting rods are cross arranged and rotationally connected to one of the fixed plates at the intersection, and the intersection is located between the two sliding rods.

[0024] Two elastic ropes, one end of each elastic rope is fixed to the top end of the corresponding limiting rod, and the other end is movably connected to the supporting plate.

[0025] By adopting the technical scheme, in the initial state, the two limiting rods are in a vertical state, when the abutting assembly abuts against the corresponding supporting plate, the hanging ring is hooked on the hook, the elastic rope is deformed to be in a taut state, so that the force for turning up the supporting plate is applied, the supporting plate is maintained in a horizontal state and is not easy to turn down, the stability of the supporting plate abutting against the inner wall of the groove is improved, and the elastic rope also applies a force for rotating the limiting rod to the direction close to the sliding rod with the center of the limiting rod as the axis.

[0026] Thus, one side of the same limiting rod is abutted against the top wall of one of the sliding rods, and the other side is abutted against the bottom wall of the other sliding rod, so that the two limiting rods are close to each other, that is, the end of the same sliding rod is subjected to the extrusion force, and the sliding rod is located in the included angle formed by the two limiting rods, and at the same time, the sliding rod is subjected to the pushing force of the limiting rod to move the sliding rod in the direction close to the supporting plate, thereby increasing the stability of the supporting plate abutting against the inner wall of the groove.

[0027] When the supporting plate needs to be disassembled, the supporting plate is flipped downward with the side close to each other as the axis, the hanging ring is subjected to the action of the elastic rope, and the hanging ring slides in the direction opposite to the connecting plate on the hook until the hanging ring is removed from the hook through the opening of the hook along the track of the hook, so that the hanging ring and the hook are separated, at this time, the elastic rope restores the deformation, and the limiting rod loses the force of pressing the sliding rod, thereby facilitating the movement of the supporting plate and the sliding rod on the fixed plate, and the disassembly of the supporting plate is realized, and the operation is convenient.

[0028] Optionally, the driving mechanism comprises:

[0029] Two rotating gears are rotatably connected to the connecting plate, and the two rotating gears are arranged in the horizontal direction and are meshed with each other;

[0030] Two rotating racks are slidably connected to the connecting plate and move in the vertical direction, and the two rotating gears are located between the two rotating racks, each rotating rack is meshed with the corresponding rotating gear, one end of the connecting rod is hingedly connected to the bottom end of the rotating rack, and the other end is connected with the abutting component;

[0031] A positioning component is arranged on the connecting plate and is used to limit the rotation of the rotating gear.

[0032] By adopting the above technical scheme, when the hanging plate is placed on the receiving plate, one of the rotating gears is driven to rotate, so that the other rotating gear rotates in the opposite direction, and then the rotating racks on both sides are driven to move downward at the same time, so that the distance between the rotating rack and the supporting plate becomes shorter, but the length of the connecting rod remains unchanged, so that the connecting rod rotates in the direction away from the connecting plate with the connecting rod and the rotating rack as the axis, that is, the end of the connecting rod away from the rotating rack drives the abutting component to move in the direction away from the supporting plate, until the abutting component extrudes the supporting plate and extrudes the supporting plate on the inner wall of the groove, at this time, the rotating gear is fixed on the connecting plate by the positioning component, so that the rotating rack cannot move, and then the abutting component maintains the state of abutting against the supporting plate, thereby achieving the support of the groove.

[0033] Optionally, the side away from each other of the two supporting plates is provided with an abutting hole, and the abutting component comprises: two abutting plates inserted into the abutting hole and moving in the horizontal direction, one end of the abutting plate is connected with the inner wall of the abutting hole through the abutting spring, and the other end is hingedly connected with the end of the connecting rod away from the rotating rack.

[0034] By adopting the technical scheme, when the rotating rack moves downward, the connecting rod moves in the direction close to the support plate with the connecting part of the connecting rod and the rotating rack as the axis, so that the end of the connecting rod away from the rotating rack also rotates on the abutting plate, and drives the abutting plate to move in the direction away from the support plate, until the abutting plate abuts on the corresponding support plate and exerts a pressing force, so that the support plate abuts tightly on the inner wall of the groove, thereby supporting the groove structure. The abutting spring always exerts a force to move the abutting plate in the direction close to the support plate, so that the abutting plate also exerts a force to pull the connecting rod in the direction close to the support plate, that is, drives the rotating rack to move downward, thereby reducing the force to drive the rotating gear to rotate when the rotating gear drives the rotating rack to move downward, and the operation is convenient.

[0035] Optionally, the positioning assembly comprises:

[0036] A positioning rack is slidably connected to the connecting plate and used to engage with one of the rotating gears to limit the rotation of the rotating gear.

[0037] A positioning spring is fixed to one end of the connecting plate and connected to the side of the positioning rack away from the rotating gear.

[0038] By adopting the technical scheme, the positioning rack is moved in the direction away from the rotating gear, and the positioning spring is compressed, so that the positioning rack is separated from the rotating gear, thereby allowing the rotating gear to rotate. After the connecting rod drives the abutting plate to abut on the support plate, the force to push the positioning rack is removed, the positioning spring recovers the deformation, and the positioning rack is moved in the direction close to the rotating gear until the positioning rack abuts and engages with the rotating gear. The teeth on the positioning rack abut the teeth on the rotating gear, thereby playing a limiting role, so that the rotating gear cannot rotate, thereby preventing the connecting rod from moving, that is, the abutting plate maintains the state of abutting on the support plate, thereby increasing the stability of the support plate supporting the groove.

[0039] Optionally, a guide block is fixed to the side wall of the connecting plate toward the positioning rack, and a guide groove perpendicular to the tooth surface of the positioning rack is formed in the side wall of the connecting plate toward the positioning rack, and the guide block is inserted into and moves in the guide groove.

[0040] By adopting the technical scheme, the inner wall of the guide groove abuts the side wall of the guide block, thereby limiting the guide block, so that the positioning rack can only move in the vertical direction, thereby preventing the positioning rack from moving in the horizontal direction due to the rotation of the rotating gear when the positioning rack abuts and engages with the rotating gear, thereby increasing the stability of the rotating gear fixed to the connecting plate.

[0041] Optionally, the two support plates are hingedly connected, and the hinge is located below the edges of the two support plates close to each other.

[0042] By adopting the technical scheme, in the initial state, the support plates are inclined downward away from the side of the hinge, and in order to abut the support plates against the inner wall of the groove, the two support plates are rotated upward around the hinge until the support plates are turned to the horizontal state, that is, the sides of the two support plates close to each other abut against each other, and the support plates are limited to continue to rotate upward.

[0043] Optionally, the connecting plate is provided with a pushing spring, and the pushing spring is arranged above the rotating rack and is used to push the rotating rack downward.

[0044] By adopting the technical scheme, the pushing spring applies a force to push the rotating rack downward, and when the rotating gear drives the rotating rack to move downward, the force to drive the rotating gear to rotate is further reduced, and the operation is convenient.

[0045] To sum up, the present application has at least one of the following beneficial effects:

[0046] 1. After the support plates are placed in the groove, the two support plates are rotated upward around the hinge until the support plates are turned to the horizontal state, that is, the sides of the two support plates close to each other abut against each other, and the support plates are limited to continue to rotate upward; at this time, the driving mechanism is started, the connecting rod is moved, and the abutting assembly is abutted against the support plates to support the two support plates, that is, the support plates are abutted against the inner wall of the groove, the two support plates are limited to move in the direction close to each other, and the support of the groove is realized;

[0047] 2. When the support plates need to be disassembled, the connecting part of the two support plates is directly pushed upward, the two support plates are flipped downward around the hinge, the abutting assembly is driven to rotate downward at the same time, the abutting assembly is separated from the support plates, the support plates lose the force to be pressed in the inner wall of the groove, and the two support plates can move in the direction close to each other until the inner wall of the groove is separated, so that the support plates can be moved out of the groove. The installation plate in the middle is directly pushed to realize the disassembly of the support plates, which is labor-saving and convenient to disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 It is a structure schematic view of a pipeline groove temporary support device of an embodiment of the present application;

[0049] Figure 2 It is a structure schematic view of the connection relationship between the telescopic assembly and the installation plate;

[0050] Figure 3 It is Figure 1 It is an enlarged view of A in the middle;

[0051] Figure 4 It is Figure 2 It is an enlarged view of B in the middle;

[0052] Figure 5 This is a structural cross-sectional view of the temporary support device for pipeline trenches according to an embodiment of this application.

[0053] In the diagram: 10, support plate; 20, telescopic assembly; 21, sliding rod; 211, sliding block; 22, fixing plate; 221, sliding groove; 30, connecting plate; 31, guide groove; 32, connecting rod; 33, positioning plate; 40, drive mechanism; 41, rotating gear; 42, rotating rack; 43, positioning assembly; 431, positioning rack; 4311, guide block; 432, positioning spring; 50, mounting plate; 51, support plate; 511, abutment hole; 52, hinge; 60, abutment assembly; 61, abutment plate; 62, abutment spring; 70, fixing assembly; 71, hanging plate; 72, receiving plate; 80, limiting assembly; 81, limiting rod; 811, connecting block; 82, elastic rope; 83, hanging ring; 84, hook; 120, connecting rod; 130, propulsion spring. Detailed Implementation

[0054] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0055] This application discloses a temporary support device for pipeline trenches. (Refer to...) Figure 1 and Figure 2 The temporary support device for the pipeline trench includes two support plates 10, which are vertically arranged and abut against the opposite sidewalls of the trench. The two support plates 10 are connected by a telescopic assembly 20, which includes two sliding rods 21 and two fixed plates 22. The two sliding rods 21 are located between the two support plates 10, are perpendicular to the support plates 10, and are on the same horizontal line. The ends of the two sliding rods 21 that are far apart from each other are fixed to the opposite support plates 10. Both fixed plates 22 are vertically arranged and perpendicular to the support plate 10. The ends of the two sliding rods 21 that are close to each other are located between the two fixed plates 22. A sliding block 211 is fixed on the side wall of the sliding rod 21. The sliding block is located at the end of the sliding rod 21 away from the support plate 10. A sliding groove 221 is opened in the horizontal direction on the opposite side of the two fixed plates 22. The sliding block 211 is inserted into the sliding groove 221 and can move in the sliding groove 221.

[0056] In use, first, the two supporting plates 10 are placed in the groove and adjusted to the appropriate position, then the two supporting plates 10 are moved away from each other, driving the sliding rods 21 to move away from the fixed plates 22, so that the overall length of the two sliding rods 21 and the fixed plates 22 is lengthened, until the supporting plates 10 are attached to the inner wall of the groove, so that the length of the telescopic assembly 20 can satisfy the different distances between the two supporting plates 10, and also make the two supporting plates 10 always maintain a parallel and connected relationship, increasing the stability of the structure of the supporting plates 10.

[0057] With reference to Figure 1 and Figure 2 , in order to abut the supporting plates 10 against the inner wall of the groove, a connecting plate 30 is fixed on the bottom wall of one of the fixed plates 22, the connecting plate 30 is vertically arranged, a mounting plate 50 is arranged between the two supporting plates 10, the mounting plate 50 includes two support plates 51 hinged by hinges 52, the hinges 52 are located on the bottom wall of the support plates 51, and the connection between the two support plates 51 is located directly below the connecting plate 30, the support plates 51 are connected with abutting assemblies 60 for abutting against the support, and the abutting assemblies 60 are connected with a driving mechanism 40 through connecting rods 120, the driving mechanism 40 is arranged on the connecting plate 30, indirectly connecting the support plates 51 and the connecting plate 30, that is, achieving the installation of the support plates 51 between the two supporting plates 10. Wherein the driving mechanism 40 rotates, driving the connecting rods 120 to move the abutting assemblies 60 towards or away from the supporting plates 10.

[0058] In the initial state, the side of the support plate 51 away from the hinge 52 is inclined downward, when the supporting plates 10 are placed in the groove, the two support plates 51 are turned upward about the hinge 52, until the support plates 51 are turned to the horizontal state, that is, the sides of the two support plates 51 close to each other abut against each other, limiting the support plates 51 to continue to turn upward.

[0059] With reference to Figure 1 and Figure 2 , at this time, the driving mechanism 40 is started, the connecting rods 120 are moved, so that the abutting assemblies 60 abut against the supporting plates 10, supporting the two supporting plates 10, that is, abutting the supporting plates 10 against the inner wall of the groove, limiting the two supporting plates 10 to move towards each other, and further achieving the support of the groove. When it is necessary to disassemble the supporting plates 10, the connection between the two support plates 51 is directly pushed upward, so that the two support plates 51 are turned downward about the hinge 52, thereby driving the abutting assemblies 60 to turn downward at the same time, so that the abutting assemblies 60 are separated from the supporting plates 10, the supporting plates 10 lose the force of being pressed against the inner wall of the groove, so that the two supporting plates 10 can move towards each other, until they are separated from the inner wall of the groove, facilitating the removal of the supporting plates 10 from the groove. Directly pushing the middle of the mounting plate 50 can achieve the disassembly of the supporting plates 10, which is labor-saving and convenient for disassembly.

[0060] With reference to Figure 1 and Figure 3 , the driving mechanism 40 comprises two rotating gears 41, two rotating racks 42 and a positioning assembly 43, the rotating gears 41 are rotationally connected to the connecting plate 30, the two rotating gears 41 are arranged along the horizontal direction and mesh with each other, the rotating racks 42 are vertically arranged, and the moving blocks are fixed on the side walls of the rotating racks 42 towards the connecting plate 30, the side walls of the connecting plate 30 towards the rotating racks 42 are provided with moving grooves along the vertical direction, and the moving blocks are inserted into the moving grooves and can move in the moving grooves. The two rotating racks 42 are oppositely arranged, and the two rotating gears 41 are located between the two rotating racks 42, each rotating rack 42 is meshed with the corresponding rotating gear 41, one end of the connecting rod 120 is hinged to the bottom end of the rotating rack 42, and the other end is connected with the abutting assembly 60. The positioning assembly 43 is arranged on the connecting plate 30 and is used for limiting the rotation of the rotating gear 41.

[0061] With reference to Figure 3 and Figure 4 , the positioning assembly 43 comprises a positioning rack 431 and a positioning spring 432, the positioning rack 431 is horizontally arranged, and the positioning rack 431 can be meshed with one of the rotating gears 41. The side wall of the positioning rack 431 is fixed with a guide block 4311, and the side wall of the connecting plate 30 is provided with a guide groove 31 along the vertical direction, and the guide block 4311 is inserted into the guide groove 31 and can move in the guide groove 31. The connecting plate 30 is fixed with a positioning plate 33, one end of the positioning spring 432 is fixed with the positioning plate 33, and the other end is fixed with the positioning rack 431, and is used for abutting the positioning rack 431 on the rotating gear 41.

[0062] When the supporting plate 51 is in a horizontal state, the positioning rack 431 is moved away from the rotating gear 41, the positioning spring 432 is pressed, the positioning rack 431 is separated from the rotating gear 41, so that one of the rotating gears 41 can be driven to rotate, so that the other rotating gear 41 is reversely rotated, and then the rotating racks 42 on both sides are simultaneously moved downward, so that the distance between the rotating rack 42 and the supporting plate 51 is shortened, but the length of the connecting rod 120 is unchanged, so that the connecting rod 120 is rotated as the connecting rod 120 and the rotating rack 42 are connected as the shaft, and the connecting rod 120 is rotated away from the connecting plate 30, that is, the end of the connecting rod 120 away from the rotating rack 42 drives the abutting assembly 60 to move away from the supporting plate 51, until the abutting assembly 60 presses the supporting plate 10, and the supporting plate 10 is pressed on the inner wall of the groove.

[0063] With reference to Figure 3 and Figure 4At this time, the force pushing the positioning rack 431 is removed, the positioning spring 432 restores the deformation, and the positioning rack 431 is moved to the direction close to the rotating gear 41 until the positioning rack 431 is in abutting engagement with the rotating gear 41. The guide block 4311 is limited in the vertical direction by the guide groove 31, so that the positioning rack 431 cannot move horizontally, that is, when the teeth on the positioning rack 431 abut against the teeth on the rotating gear 41, the rotating gear 41 can be limited, so that the rotating gear 41 cannot rotate, so that the connecting rod 120 cannot move, that is, the abutting plate 61 maintains the state of abutting against the support plate 10, and the support of the groove structure is realized.

[0064] With reference to Figure 3 In order to reduce the force of driving the rotating gear 41 to drive the rotating rack 42 to move downward, a pushing plate is fixed on the connecting plate 30, the pushing plate is located above the rotating rack 42, a pushing spring 130 is arranged between the pushing plate and the rotating rack 42, one end of the pushing spring 130 is fixed with the pushing plate, and the other end is fixed with the rotating rack 42, for pushing the rotating rack 42 downward.

[0065] When the support plate 10 is disassembled, the positioning rack 431 is first moved upward, so that the positioning rack 431 is separated from the rotating gear 41, then the connecting part of the support plate 51 is directly pushed, so that the support plate 10 loses the extrusion force, and the support plate 10 is easily separated from the groove.

[0066] With reference to Figure 1 And Figure 5 The abutting assembly 60 comprises an abutting plate 61 and an abutting spring 62. The two support plates 51 are provided with abutting holes 511 on the sides away from each other. The abutting plate 61 is correspondingly inserted into the abutting holes 511 and can move in the abutting holes 511. The connecting rod 120 is hinged to the part of the abutting plate 61 extending out of the abutting hole 511 away from the rotating rack 42. The abutting spring 62 is arranged in the abutting hole 511, and one end of the abutting spring 62 is fixed with the inner wall of the abutting hole 511, and the other end is fixed with the abutting plate 61.

[0067] When the rotating rack 42 moves downward, the connecting rod 120 moves to the direction close to the support plate 10 with the connecting part of the connecting rod 120 and the rotating rack 42 as the shaft, so that the end of the connecting rod 120 away from the rotating rack 42 also rotates on the abutting plate 61, and at the same time drives the abutting plate 61 to move away from the support plate 51 until the abutting plate 61 abuts against the support plate 10, so as to abut the support plate 10 against the groove, and realize the support of the groove.

[0068] The abutting spring 62 always applies a force to move the abutting plate 61 towards the supporting plate 10, so that the abutting plate 61 also applies a force to pull the connecting rod 120 towards the supporting plate 10, i.e. drives the rotating rack 42 to move downwards, thereby further reducing the force to drive the rotating gear 41 to rotate.

[0069] With reference to Figure 1 And Figure 2 When the two support plates 51 are rotated to abut against each other, i.e. the support plates 51 are in a horizontal state, in order to support the support plates 51, a fixing assembly 70 is arranged on the connecting plate 30, the fixing assembly 70 includes a receiving plate 72 and two hanging plates 71, the receiving plate 72 is arranged horizontally, and the bottom wall of the connecting plate 30 is fixed to the midpoint of the top wall of the receiving plate 72 through the connecting rod 32, each hanging plate 71 is fixed on the corresponding support plate 51, and the two hanging plates 71 are symmetrically arranged with the connecting part of the two support plates 51 as the axis. Specifically, the hanging plate 71 is an L-shaped plate, and the two hanging plates 71 are oppositely arranged.

[0070] When the support plate 51 is flipped upwards to the horizontal state with the hinge 52 as the axis, the hanging plate 71 moves to the receiving plate 72 along with the movement of the support plate 51 and abuts against the upper surface of the receiving plate 72, so that the receiving plate 72 supports the hanging plate 71, thereby supporting the support plate 51, so that the support plate 51 will not move vertically downward under the action of gravity. When the connecting part of the two support plates 51 is jacked up, the hanging plate 71 moves away from the receiving plate 72 under the driving of the support plate 51, until the hanging plate 71 is separated from the receiving plate 72, so that the receiving plate 72 will not interfere with the disassembly of the supporting plate 10.

[0071] With reference to Figure 1 And Figure 2 When the two sliding rods 21 move away from each other, so that the overall length of the two sliding rods 21 and the fixed plate 22 adapts to the distance between the two supporting plates 10, in order to make the sliding rod 21 apply a force to push the supporting plate 10, i.e. the sliding rod 21 is not easy to move towards each other, a limiting assembly 80 is arranged on the fixed plate 22, the limiting assembly 80 includes two limiting rods 81 and two elastic ropes 82, the two limiting rods 81 are located between the two fixed plates 22, the center of each limiting rod 81 is rotatably connected to the corresponding fixed plate 22, the sliding rod 21 is located within the included angle formed by the two limiting rods 81, and the side wall of the limiting rod 81 abuts against the sliding rod 21. The top end of the limiting rod 81 is fixed with a connecting block 811, one end of each elastic rope 82 is fixed on the connecting block 811 of the corresponding limiting rod 81, the other end of the elastic rope 82 is fixed with a hanging ring 83, and each support plate 51 is fixed with a hook 84, the two hooks 84 are symmetrically arranged with the connecting part of the two support plates 51 as the axis, and the openings of the two hooks 84 are oppositely arranged.

[0072] In the initial state, the two limiting rods 81 are in vertical state, when the abutting plate 61 abuts the corresponding support plate 10 on the inner wall of the groove, the hanging ring 83 is hooked on the hook 84, so that the elastic rope 82 is deformed to be in a taut state, thereby not only applying a force to turn the support plate 51 upward, so that the support plate 51 maintains a horizontal state and is not easy to turn downward, increasing the stability of the support plate 10 abutting on the inner wall of the groove, and at the same time, the elastic rope 82 also applies a force to rotate the limiting rod 81 to the direction of moving the sliding rod 21 with the center of the limiting rod 81 as the axis.

[0073] Referring to Figure 1 and Figure 2 , so that one side of the same limiting rod 81 abuts on the top wall of one of the sliding rods 21, and the other side abuts on the bottom wall of the other sliding rod 21, so that the two limiting rods 81 are close to each other, that is, the end of the same sliding rod 21 is subjected to a pressing force, and the sliding rod 21 is located in the included angle formed by the two limiting rods 81, and at the same time, is subjected to the pushing force of the limiting rod 81 to move the sliding rod 21 to the direction close to the support plate 10, increasing the stability of the support plate 10 abutting on the inner wall of the groove.

[0074] When it is necessary to disassemble the support plate 10, the support plate 51 is turned downward with the hinge 52 as the axis, the hanging ring 83 is moved relative to the hinge 52 on the hook 84 under the action of the elastic rope 82, until the hanging ring 83 is moved out of the hook 84 from the opening of the hook 84 along the track of the hook 84, so as to realize the separation of the hanging ring 83 and the hook 84, at this time, the elastic rope 82 restores the deformation, and the limiting rod 81 loses the force to press the sliding rod 21, so as to facilitate the movement of the support plate 10 and the sliding rod 21 on the fixed plate 22, and realize the disassembly of the support plate 10.

[0075] The implementation principle of the pipeline groove temporary support device in the embodiment of the application is as follows: in the initial state, the side of the support plate 51 away from the hinge 52 is inclined downward, when the support plate 10 is placed in the groove, the two support plates 51 are turned upward with the hinge 52 as the axis, until the support plate 51 is turned to a horizontal state, that is, the sides close to each other of the two support plates 51 abut on each other, limiting the support plate 51 from continuing to turn upward.

[0076] At this time, the driving mechanism 40 is started, the connecting rod 120 is driven to move, so that the abutting assembly 60 abuts on the support plate 10, and the two support plates 10 are supported, that is, the support plate 10 is abutted on the inner wall of the groove, the movement of the two support plates 10 in the direction of approaching each other is limited, and the support of the groove is realized. In this process, it is not necessary to determine the distance between the two support plates 10, but only to use the driving mechanism to make the abutting assembly 60 push the support plate 10 to abut on the inner wall of the groove, so that the operation is convenient. When it is necessary to disassemble the support plate 10, the positioning rack 431 is first manually moved upward to separate the positioning rack 431 from the rotating gear 41, then the hinge 52 is directly pushed upward, the entire mounting plate 50 is moved upward, the hanging plate 71 is moved upward to separate from the receiving plate 72, the middle part of the mounting plate 50 is stressed, and at the same time, the two support plates 51 are flipped downward with the hinge 52 as the shaft. It can be understood that the hanging plate 71 can move away from the receiving plate 72 under the driving of the support plate 51, and the abutting assembly 60 is also rotated downward at the same time, so that the abutting assembly 60 is separated from the support plate 10, the support plate 10 loses the force of being pressed on the inner wall of the groove, and the two support plates 10 can move in the direction of approaching each other until they are separated from the inner wall of the groove, so that the support plate 10 can be moved out of the groove. The disassembly of the support plate 10 can be realized by directly pushing the middle part of the mounting plate 50, which is labor-saving and convenient to disassemble.

[0077] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A temporary support device for pipeline trenches, used to support trenches, characterized in that, The utility model relates to a kind of trench support device, including: Two support plates (10) are vertically arranged and abut on two opposite side walls of the trench respectively; A telescopic assembly (20) is horizontally arranged between the two support plates (10), and the end of the telescopic assembly (20) is fixedly connected with the support plate (10). A connecting plate (30) is connected below the middle part of the telescopic assembly (20); An installation plate (50) is located between the two support plates (10) and below the telescopic assembly (20). The installation plate (50) is connected with the telescopic assembly (20) through the connecting plate (30). The installation plate (50) includes two hinged support plates (51). The support plate (51) is provided with an abutting assembly (60) at both ends, which can extend outward to abut with the support plate (10); A driving mechanism (40) is arranged on the connecting plate (30). The driving mechanism (40) is connected with the abutting assembly (60) through a connecting rod (120) to drive the connecting rod (120) to move the abutting assembly (60) towards or away from the support plate (10); The telescopic assembly (20) includes: Two sliding rods (21) are arranged on the same horizontal line. The ends of the two sliding rods (21) away from each other are fixed with corresponding support plates (10) respectively; Two fixed plates (22) are arranged on both sides of the two sliding rods (21) and are symmetric about the central axis of the sliding rod (21). A sliding block (211) is fixed on the side wall of the sliding rod (21). A sliding groove (221) is formed in the side wall of the fixed plate (22) in the horizontal direction. The sliding block (211) is inserted into the sliding groove (221) and moves in the sliding groove (221). The connecting plate (30) is vertically arranged and fixedly connected below one of the fixed plates (22); A limiting assembly (80) is arranged on the fixed plate (22). The limiting assembly (80) includes: Two limiting rods (81) are arranged in a cross shape and are rotatably connected to one of the fixed plates (22) at the intersection. The intersection is located between the two sliding rods (21); Two elastic ropes (82) are arranged. One end of each elastic rope (82) is fixed to the top end of the corresponding limiting rod (81), and the other end is movably connected to the support plate (51).

2. The pipe trench temporary support apparatus of claim 1, wherein, The bottom of the connecting plate (30) is provided with a fixing assembly (70). The fixing assembly (70) includes: Two hanging plates (71) are arranged on the edges of the two support plates (51) close to each other; A receiving plate (72) is horizontally fixed on the bottom of the connecting plate (30) to support the hanging plate (71). When the hanging plate (71) is placed on the receiving plate (72), the support plate (51) is in a horizontal state.

3. The trench j acking system of claim 1, wherein, The driving mechanism (40) includes: Two rotating gears (41) are rotatably connected to the connecting plate (30). The two rotating gears (41) are arranged in the horizontal direction and mesh with each other. Two rotating racks (42) are slidingly connected to the connecting plate (30) and move in the vertical direction, two rotating gears (41) are located between the two rotating racks (42), each rotating rack (42) is engaged with the corresponding rotating gear (41), one end of the connecting rod (120) is hinged to the bottom end of the rotating rack (42), and the other end is connected with the abutting assembly (60); A positioning assembly (43) is arranged on the connecting plate (30) and used for limiting rotation of the rotating gear (41).

4. The pipe trench temporary shoring device of claim 3, wherein, The side of each of the two support plates (51) away from each other is provided with an abutting hole (511), and the abutting assembly (60) comprises: two abutting plates (61) inserted into the abutting holes (511) and moving in the horizontal direction, one end of the abutting plate (61) is connected with the inner wall of the abutting hole (511) through an abutting spring (62), and the other end is hinged with the end of the connecting rod (120) away from the rotating rack (42).

5. The pipe trench temporary shoring device of claim 3, wherein, The positioning assembly (43) comprises: A positioning rack (431) is slidingly connected to the connecting plate (30) and used for engaging with one of the rotating gears (41) to limit rotation of the rotating gear (41); A positioning spring (432) has one end fixed to the connecting plate (30) and the other end connected to the side of the positioning rack (431) away from the rotating gear (41).

6. The pipe trench temporary shoring device of claim 5, wherein, The side wall of the positioning rack (431) towards the connecting plate (30) is fixed with a guide block (4311), and the side wall of the connecting plate (30) towards the positioning rack (431) is provided with a guide groove (31) perpendicular to the tooth surface of the positioning rack (431), and the guide block (4311) is inserted into the guide groove (31) and moves in the guide groove (31).

7. The trench j acking system of claim 4, wherein, The two support plates (51) are hinged through hinges (52), and the hinges (52) are located below the edges of the two support plates (51) close to each other.

8. The pipe trench temporary shoring device of claim 3, wherein, The connecting plate (30) is provided with a pushing spring (130), and the pushing spring (130) is arranged above the rotating rack (42) and used for pushing the rotating rack (42) downward.

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