Urban underground space engineering excavation supporting device

Abstract

The invention discloses an urban underground space engineering excavation supporting device, which belongs to the technical field of engineering excavation supporting, and comprises side supporting mechanisms and a transverse supporting mechanism, and the transverse supporting mechanism is arranged between the two side supporting mechanisms. The side supporting mechanism comprises a supporting height adjusting assembly, a secondary auxiliary side fixing assembly, an arched supporting angle adjusting assembly and a crank body, the supporting height adjusting assembly comprises a clamping head and a lower sliding seat, one end of the crank body can be clamped in the clamping head, and the crank body rotates to drive the lower sliding seat to move up and down; the arch-shaped supporting angle adjusting assembly comprises a threaded pull rod and a threaded sleeve. By arranging the side supporting mechanisms and the transverse supporting mechanism, the supporting function of underground space engineering excavation tunnels with different widths can be achieved only by adjusting the distance between the two side supporting mechanisms without the help of a power source, and the overall stability and bearing capacity are improved through cooperation of the side supporting mechanisms and the transverse supporting mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering excavation support, and specifically refers to an urban underground space engineering excavation support device. Background Art

[0002] The development of underground space is an extension of urban land use, and tunnel engineering is one of the main manifestations. This structure is usually divided into tunnels for transportation purposes, tunnels for water conservancy projects, tunnels related to municipal facilities, and tunnels for mining purposes. When tunneling, its impact on the surrounding rocks may cause significant deformation. In order to ensure the stability of the project, appropriate support technology must be adopted to protect the excavation area. If the support measures are not implemented effectively, the deformation of the rock may exceed the safety limit, resulting in the destruction of the tunnel structure, which may in turn cause serious economic losses.

[0003] The existing patent (Announcement No.: CN218206733U) is a support device for excavation of urban underground space engineering, comprising: a pit body, a mounting plate is installed at the bottom of the inner cavity of the pit body, and protective frames are installed on both sides of the inner cavity of the pit body. Fixed plug rods are installed on the outer side of the protective frame from top to bottom, and the outer side of the fixed plug rod runs through both sides of the pit body. A frame is installed on the top of the mounting plate, and a dual-axis stepper motor is arranged in the inner cavity of the frame. Compared with the original support device, although this support device can protect tunnels excavated in underground space engineering of different widths, it must rely on motors and has a more complex structure. In addition, the above-mentioned support device cannot have the stability and durability of the arch support. Therefore, the market urgently needs an urban underground space engineering excavation support device to solve the above problems. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an urban underground space engineering excavation support device, which effectively solves the problem that although the traditional support device can protect tunnels excavated in underground space engineering of different widths, it must rely on motors and has a relatively complex structure, and the above-mentioned support device cannot have both the stability and durability of the arch support. By setting up side support mechanisms and transverse support mechanisms, there is no need for a power source, and only the distance between the two groups of side support mechanisms needs to be adjusted to achieve the support function of underground space engineering excavation tunnels of different widths. Moreover, the side support mechanism cooperates with the transverse support mechanism to improve the overall stability and bearing capacity.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes an urban underground space engineering excavation support device, including a side support mechanism and a transverse support mechanism, wherein the transverse support mechanism is arranged between two groups of side support mechanisms, and the side support mechanism includes a support height adjustment component, a secondary auxiliary side fixing component, an arch support angle adjustment component and a crank body, wherein the support height adjustment component includes a clamping joint and a lower sliding seat, one end of the crank body can be clamped in the clamping joint, and the rotation of the crank body can drive the lower sliding seat to move up and down, and the arch support angle adjustment component includes a threaded pull rod and a threaded sleeve, and the threaded sleeve can rotate relative to the threaded pull rod. By setting the side support mechanism and the transverse support mechanism, there is no need to rely on a power source, and only the distance between the two groups of side support mechanisms needs to be adjusted to realize the support function of underground space engineering excavation tunnels of different widths, and the side support mechanism cooperates with the transverse support mechanism to improve the overall stability and bearing capacity.

[0006] Furthermore, the support height adjustment assembly includes a control block body, a steel rope body, an S-pole magnet, an N-pole magnet, a limit block, a gear box body, a drive shaft through hole, an intermediate support frame, a side rack, a drive shaft body, a drive gear, a driven gear, a support seat and a driven shaft body, one end of the steel rope body passes through the control block body, the other end of the steel rope body is fixedly connected to the S-pole magnet, the N-pole magnet is symmetrically arranged on both sides of the S-pole magnet, the limit block is fixedly connected to the N-pole magnet, the interior of the lower sliding seat is symmetrically provided with a limit slot, the limit block can be clamped in the limit slot, the gear box body is fixedly connected to the lower sliding seat, the drive shaft body is fixedly connected to the clamping joint, the drive gear is fixedly connected to the drive shaft body, the driven gear is The driven gear is meshed with the side rack, the side rack is fixedly connected to the middle support frame, the support seat is fixedly connected to the lower slide seat, and the driven shaft body is fixedly connected to the driven gear. In addition, by setting a support height adjustment component, the S-pole magnet can attract the N-pole magnet by simply pressing the control block body, thereby achieving the technical effect of the limit block and the limit slot being disengaged, and further the card joint is driven to rotate by the crank body, and the card joint drives the middle support frame to move up and down through the drive shaft body, the drive gear, the driven gear and the side rack, and only the control block body needs to be released, the S-pole magnet will be reset under the action of the reset spring, and according to the principle of mutual repulsion of magnets of the same pole, the N-pole magnet will push the limit block to engage with the limit slot, thereby achieving the limit function after the height of the support device is adjusted;

[0007] A driving shaft through hole and a driven shaft groove are provided on the gear box body, a block slide groove is provided through the lower part of the intermediate support frame, a control block slide groove is provided in the middle part of the intermediate support frame, a steel rope through hole is provided in the control block slide groove, a slide groove is provided in the middle part of the lower end of the intermediate support frame, and the slide groove is connected with the steel rope through hole.

[0008] Furthermore, the secondary auxiliary side fixing assembly includes a fixed limit clip, a clip limit column, a steel rod body and a connecting ear, the fixed limit clip is fixedly connected to the connecting ear, one end of the clip limit column is arranged in the connecting ear, and the other end of the clip limit column is fixedly connected to the intermediate support frame, a steel rod through hole is opened in the middle of the intermediate support frame, the steel rod body passes through the steel rod through hole, and the fixed limit clip is arranged on the outside of the steel rod body. Moreover, by setting up the secondary auxiliary side fixing assembly, it is only necessary to nail the steel rod body into the tunnel wall through the steel rod through hole, and further fix and limit the steel rod body through the upper and lower fixed limit clips, thereby realizing the secondary fixing function of the intermediate support frame, and cooperating with the support seat composed of the support seat and the lower sliding seat, double support is provided to enhance the overall stability and load capacity of the structure.

[0009] Furthermore, the arch support angle adjustment assembly includes a lower pull ear, an upper pull ear, an upper arc support frame, a pin shaft body and a hinge block, both ends of the threaded sleeve are threadedly connected to a threaded pull rod, one end of one of the threaded pull rods is hinged to the lower pull ear, and one end of the other threaded pull rod is hinged to the upper pull ear, the upper pull ear is fixedly connected to the upper arc support frame, the upper arc support frame is hinged to the hinge block through the pin shaft body, the hinge block is fixedly connected to the middle support frame, and the lower pull ear is fixedly connected to the middle support frame, wherein, by setting an arch support angle adjustment assembly and a cross support mechanism, since the upper arc support frame is hinged to the hinge block through the pin shaft body, the hinge block is fixedly connected to the middle support frame, the hinge angle between the upper arc support frame and the middle support frame can be adjusted by rotating the threaded sleeve, and both ends of the long cross support frame and the short cross support frame can be inserted into the overlapping slots on the upper arc support frame.

[0010] Furthermore, the transverse support mechanism includes a long transverse support frame and a short transverse support frame. The long transverse support frame and the short transverse support frame have different lengths. A medium transverse long support frame is provided between the long transverse support frame and the short transverse support frame. By replacing the long transverse support frame and the short transverse support frame, the support width of the excavation of the underground space engineering project can be quickly adjusted, and the pressure can be evenly dispersed to both ends in conjunction with the arch support angle adjustment component, which can further reduce the local stress of the structure.

[0011] Furthermore, the control block body is slidably arranged in the control block slide groove, one end of the steel rope body is fixedly connected to the upper wall of the control block slide groove, the steel rope body passes through the steel rope through hole, the S-pole magnet is arranged in the slide groove at the bottom of the steel rope through hole, and the lower part of the S-pole magnet is fixedly connected with a reset spring, and one end of the reset spring is fixedly connected to the lower end of the intermediate support frame.

[0012] Furthermore, the N-pole magnet and the limit block are each provided with two groups, the N-pole magnet and the limit block are symmetrically arranged in the block slide groove, the driving shaft body is rotatably arranged in the driving shaft through hole, the clamping joint is arranged outside the gear box body, the driven shaft body is rotatably arranged in the driven shaft groove, and the intermediate support frame is arranged in the lower sliding seat.

[0013] Furthermore, a crank installation groove is opened on the outside of the gear box body, and the crank body can be snapped into the crank installation groove, and the upper and lower groups of fixed limit clips are connected by bolts.

[0014] Furthermore, the threaded sleeves are provided with two groups in total, and both ends of the long horizontal support frame and the short horizontal support frame can be clamped in the overlapping clamping grooves.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) In order to solve the problem that the current support device can protect tunnels excavated in underground space engineering of different widths, but must rely on motors and has a relatively complex structure, and the support device cannot have both the stability and durability of the arch support, the present invention sets a side support mechanism and a transverse support mechanism, without the need for a power source, and only needs to adjust the distance between the two sets of side support mechanisms to achieve the support function of tunnels excavated in underground space engineering of different widths, and the side support mechanism cooperates with the transverse support mechanism to improve the overall stability and bearing capacity;

[0017] (2) Among them, by setting the arch support angle adjustment component and the horizontal support mechanism, since the upper arc support frame and the hinge block are hinged by the pin shaft body, and the hinge block is fixedly connected to the middle support frame, the hinge angle between the upper arc support frame and the middle support frame can be adjusted by rotating the threaded sleeve, and both ends of the long horizontal support frame and the short horizontal support frame can be inserted into the overlapping card groove on the upper arc support frame. By replacing the long horizontal support frame and the short horizontal support frame, the support width of the underground space engineering excavation can be quickly adjusted, and the arch support angle adjustment component can be used to evenly disperse the pressure to both ends, so that the local stress of the structure can be further reduced;

[0018] (3) In addition, by setting up a support height adjustment component, the S-pole magnet can attract the N-pole magnet by simply pressing the control block body, thereby achieving the technical effect of the limit block and the limit slot being separated, and further driving the card joint to rotate through the crank body, the card joint drives the middle support frame to move up and down through the drive shaft body, the drive gear, the driven gear and the side rack, and only by loosening the control block body, the S-pole magnet will be reset under the action of the reset spring, and according to the principle of mutual repulsion of magnets with the same poles, the N-pole magnet will push the limit block to engage with the limit slot, thereby achieving the limit function after the height adjustment of the support device;

[0019] (4) Moreover, by setting up a secondary auxiliary side fixing assembly, it is only necessary to nail the steel rod body into the tunnel wall through the steel rod through hole, and further fix and limit the steel rod body through the upper and lower fixed limit clips, thereby realizing the secondary fixing function of the intermediate support frame, and cooperating with the support seat composed of the support seat and the lower sliding seat, double support is provided to enhance the overall stability and load capacity of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an urban underground space engineering excavation support device proposed by the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of an urban underground space engineering excavation support device proposed by the present invention Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of an urban underground space engineering excavation support device proposed by the present invention;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of a side support mechanism of an urban underground space engineering excavation support device proposed by the present invention;

[0024] Figure 5 Schematic diagram of the exploded three-dimensional structure of the side support mechanism of the urban underground space engineering excavation support device proposed by the present invention Figure 1 ;

[0025] Figure 6 Schematic diagram of the exploded three-dimensional structure of the side support mechanism of the urban underground space engineering excavation support device proposed by the present invention Figure 2 ;

[0026] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at point A in the middle;

[0027] Figure 8 Schematic diagram of the exploded three-dimensional structure of the side support mechanism of the urban underground space engineering excavation support device proposed by the present invention Figure 3 ;

[0028] Fig. 9 for Figure 8 A schematic diagram of the local enlarged structure at B in the middle;

[0029] Fig.10 The present invention is a schematic diagram of the three-dimensional structure of a transverse support mechanism of an urban underground space engineering excavation support device proposed by the present invention.

[0030] Among them, 1, side support mechanism; 100, control block body; 101, steel rope body; 102, S pole magnet; 103, N pole magnet; 104, limit block; 105, slide seat; 106, limit slot; 107, gear box body; 108, drive shaft through hole; 109, intermediate support frame; 110, control block slide; 111, steel rope through hole; 112, block slide; 113, side rack; 114, card joint; 115, drive shaft body; 116, drive gear; 117, driven gear; 118, fixed limit 1. Position clip; 119. Clip limit column; 120. Steel rod through hole; 121. Steel rod body; 122. Lower pull ear; 123. Threaded pull rod; 124. Threaded sleeve; 125. Upper pull ear; 126. Upper arc support frame; 127. Pin body; 128. Articulated block; 129. Overlap slot; 130. Crank mounting slot; 131. Crank body; 132. Support seat; 133. Connecting ear; 134. Driven shaft body; 135. Driven shaft rotation slot; 2. Horizontal support mechanism; 200. Long horizontal support frame; 201. Short horizontal support frame.

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] like Figure 1-Figure 10As shown, the present invention proposes an urban underground space engineering excavation support device, including a side support mechanism 1 and a transverse support mechanism 2, the transverse support mechanism 2 is arranged between two sets of side support mechanisms 1, the side support mechanism 1 includes a support height adjustment component, a secondary auxiliary side fixing component, an arch support angle adjustment component and a crank body 131, the support height adjustment component includes a clamping joint 114 and a lower slide seat 105, one end of the crank body 131 can be clamped in the clamping joint 114, the crank body 131 rotates to drive the lower slide seat 105 to move up and down, the arch support angle adjustment component includes a threaded pull rod 123 and a threaded sleeve 12 4. The threaded sleeve 124 is rotatable relative to the threaded pull rod 123. In order to solve the problem that the current support device can protect tunnels excavated in underground space projects of different widths, but it must rely on a motor and has a relatively complex structure, and the support device cannot have both the stability and durability of the arch support, the present invention sets a side support mechanism 1 and a transverse support mechanism 2. Without the need for a power source, only the distance between the two groups of side support mechanisms 1 needs to be adjusted to achieve the support function of tunnels excavated in underground space projects of different widths. In addition, the side support mechanism 1 cooperates with the transverse support mechanism 2 to improve the overall stability and bearing capacity.

[0035] Among them, the support height adjustment component includes a control block body 100, a steel rope body 101, an S-pole magnet 102, an N-pole magnet 103, a limit block 104, a gear box body 107, a drive shaft through hole 108, an intermediate support frame 109, a side rack 113, a drive shaft body 115, a drive gear 116, a driven gear 117, a support seat 132 and a driven shaft body 134. One end of the steel rope body 101 passes through the control block body 100, and the other end of the steel rope body 101 is fixedly connected to the S-pole magnet 102. The N-pole magnet 103 is symmetrically arranged on both sides of the S-pole magnet 102. The limit block 104 is fixedly connected to the N-pole magnet 103. The inner part of the lower sliding seat 105 is symmetrically provided with a limit slot 106, and the limit block 104 can be clamped. The gearbox body 107 is connected to the lower sliding seat 105, the drive shaft body 115 is fixedly connected to the card joint 114, the drive gear 116 is fixedly connected to the drive shaft body 115, the driven gear 117 is meshed with the drive gear 116, the driven gear 117 is meshed with the side rack 113, the side rack 113 is fixedly connected to the intermediate support frame 109, the support seat 132 is fixedly connected to the lower sliding seat 105, the driven shaft body 134 is fixedly connected to the driven gear 117, the gearbox body 107 is provided with a drive shaft through hole 108 and a driven shaft groove 135, the lower part of the intermediate support frame 109 is penetrated by a card block groove 112, the middle part of the intermediate support frame 109 is provided with a control block groove 110, and the control block A steel rope hole 111 is provided through the slide groove 110, and a slide groove is provided in the middle of the lower end of the intermediate support frame 109, and the slide groove is connected with the steel rope hole 111. By arranging an arch support angle adjustment component and a horizontal support mechanism 2, since the upper arc support frame 126 is hinged to the hinge block 128 through the pin shaft body 127, the hinge block 128 is fixedly connected to the intermediate support frame 109, and the hinge angle between the upper arc support frame 126 and the intermediate support frame 109 can be adjusted by rotating the threaded sleeve 124. Both ends of the long horizontal support frame 200 and the short horizontal support frame 201 can be inserted into the overlapping card groove 129 on the upper arc support frame 126. By replacing the long horizontal support frame 200 and the short horizontal support frame 201, the support for excavation of underground space engineering can be quickly adjusted. width, and in conjunction with the arch support angle adjustment component, the pressure can be evenly dispersed to both ends, which can further reduce the local stress of the structure. In addition, by setting the support height adjustment component, it is only necessary to press the control block body 100 to make the S-pole magnet 102 attract the N-pole magnet 103, thereby achieving the technical effect of the limit block 104 being separated from the limit slot 106, and further driving the card joint 114 to rotate through the crank body 131, and the card joint 114 drives the middle support frame 109 to move up and down through the drive shaft body 115, the drive gear 116, the driven gear 117 and the side rack 113, and only the control block body 100 needs to be released, and the S-pole magnet 102 will be reset under the action of the reset spring. According to the principle of mutual repulsion of magnets of the same poles,The N-pole magnet 103 will push the limit block 104 to engage with the limit slot 106, thereby realizing the limit function after the height of the support device is adjusted.

[0036] Among them, the secondary auxiliary side fixing component includes a fixed limit clip 118, a clip limit column 119, a steel rod body 121 and a connecting ear 133. The fixed limit clip 118 is fixedly connected to the connecting ear 133. One end of the clip limit column 119 is arranged in the connecting ear 133, and the other end of the clip limit column 119 is fixedly connected to the intermediate support frame 109. A steel rod through hole 120 is opened in the middle of the intermediate support frame 109. The steel rod body 121 passes through the steel rod through hole 120. The fixed limit clip 118 is arranged on the outside of the steel rod body 121. The arch support angle adjustment component includes a lower pull ear 122, an upper pull ear 125, an upper arc support frame 126, a pin shaft body 127 and a hinge block 128. Both ends of the threaded sleeve 124 are threadedly connected to the threaded pull rod 123, and one end of one of the threaded pull rods 123 is connected to the The lower pull ear 122 is hinged, and one end of the other threaded pull rod 123 is hinged to the upper pull ear 125. The upper pull ear 125 is fixedly connected to the upper arc-shaped support frame 126. The upper arc-shaped support frame 126 is hinged to the hinge block 128 through the pin body 127. The hinge block 128 is fixedly connected to the intermediate support frame 109. The lower pull ear 122 is fixedly connected to the intermediate support frame 109. Moreover, by setting up a secondary auxiliary side fixing component, it is only necessary to nail the steel rod body 121 into the tunnel wall through the steel rod through hole 120, and further fix and limit the steel rod body 121 through the upper and lower fixed limit clips 118, thereby realizing the secondary fixing function of the intermediate support frame 109, and cooperating with the support seat composed of the support seat 132 and the lower sliding seat 105, double support is provided to enhance the overall stability and load capacity of the structure.

[0037] In addition, the transverse support mechanism 2 includes a long transverse support frame 200 and a short transverse support frame 201. The long transverse support frame 200 and the short transverse support frame 201 have different lengths. A middle transverse long support frame is provided between the long transverse support frame 200 and the short transverse support frame 201. The control block body 100 is slidably arranged in the control block slide groove 110. One end of the steel rope body 101 is fixedly connected to the upper wall of the control block slide groove 110. The steel rope body 101 passes through the steel rope through hole 111. The S-pole magnet 102 is arranged in the slide groove at the bottom of the steel rope through hole 111. A reset spring is fixedly connected to the lower part of the S-pole magnet 102. One end of the reset spring is fixedly connected to the lower end of the intermediate support frame 109.

[0038] In this embodiment, two groups of N-pole magnets 103 and limit blocks 104 are provided, and the N-pole magnets 103 and limit blocks 104 are symmetrically arranged in the block slide groove 112, the driving shaft body 115 is rotatably arranged in the driving shaft through hole 108, the clamping joint 114 is arranged outside the gear box body 107, the driven shaft body 134 is rotatably arranged in the driven shaft groove 135, the intermediate support frame 109 is arranged in the lower sliding seat 105, and a crank mounting groove 130 is opened on the outside of the gear box body 107, the crank body 131 can be clamped in the crank mounting groove 130, the upper and lower groups of fixed limit clips 118 are connected by bolts, and there are two groups of threaded sleeves 124, and both ends of the long horizontal support frame 200 and the short horizontal support frame 201 can be clamped in the overlapping clamping groove 129.

[0039] When used specifically, first, two sets of side support mechanisms 1 are placed on both sides of the underground space tunnel, and appropriate long horizontal support frames 200 or short horizontal support frames 201 are selected according to the width of the tunnel and placed in the overlap card slots 129;

[0040] When the height of the supporting device needs to be adjusted, the control block body 100 is pressed by hand, and the control block body 100 pulls the S-pole magnet 102 up along the slide groove in the bottom of the intermediate support frame 109. When the S-pole magnet 102 is flush with the N-pole magnet 103, according to the principle of mutual attraction between magnets of different poles, the S-pole magnet 102 will attract the N-pole magnet 103, and then the limit block 104 is separated from the limit groove 106, and the crank body 131 is taken out of the crank installation groove 130, and one end of the crank body 131 is inserted into the card joint 114, and the crank is turned. The main body 131, and then the card joint 114 drives the driving gear 116 to rotate through the driving shaft body 115. Since the driving gear 116 is meshed with the driven gear 117, the driven gear 117 drives the intermediate support frame 109 to move up and down through the side rack 113. After the height adjustment is completed, the control block body 100 is released, and the S-pole magnet 102 will be reset under the action of the reset spring, and the two groups of N-pole magnets 103 will repel each other, so that the limit block 104 and the limit slot 106 are re-engaged, thereby realizing the limit function of the support device after the height adjustment;

[0041] Then, the steel rod body 121 is nailed into the tunnel wall through the steel rod through hole 120, and the steel rod body 121 is limited by the upper and lower fixed limit clips 118, thereby realizing the secondary auxiliary fixing function of the intermediate support frame 109;

[0042] Finally, rotate the threaded sleeve 124 to make the threaded sleeve 124 rotate relative to the threaded pull rod 123. Since the threaded pull rods 123 at both ends of the threaded sleeve 124 are respectively hinged to the lower pull ear 122 and the upper pull ear 125, the upper pull ear 125 is fixedly connected to the upper arc support frame 126. The upper arc support frame 126 is hinged to the hinge block 128 through the pin shaft body 127, thereby realizing the angle adjustment of the upper arc support frame 126, and cooperating with the long horizontal support frame 200 or the short horizontal support frame 201 to realize the stability and durability of the arch support.

[0043] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An urban underground space engineering excavation support device, characterized in that: The invention comprises a side support mechanism (1) and a transverse support mechanism (2), wherein the transverse support mechanism (2) is arranged between two groups of side support mechanisms (1), wherein the side support mechanism (1) comprises a support height adjustment component, a secondary auxiliary side fixing component, an arch support angle adjustment component and a crank body (131), wherein the support height adjustment component comprises a clamping joint (114) and a lower sliding seat (105), wherein one end of the crank body (131) can be clamped in the clamping joint (114), wherein the crank body (131) can rotate to drive the lower sliding seat (105) to move up and down, and wherein the arch support angle adjustment component comprises a threaded rod (123) and a threaded sleeve (124), wherein the threaded sleeve (124) can rotate relative to the threaded rod (123).

2. The urban underground space engineering excavation support device according to claim 1, characterized in that: The support height adjustment component comprises a control block body (100), a steel rope body (101), an S-pole magnet (102), an N-pole magnet (103), a limit block (104), a gear box body (107), a drive shaft through hole (108), an intermediate support frame (109), a side rack (113), a drive shaft body (115), a drive gear (116), a driven gear (117), a support seat (132) and a driven shaft body (134); one end of the steel rope body (101) passes through the control block body (100); the other end of the steel rope body (101) is fixedly connected to the S-pole magnet (102); the N-pole magnet (103) is symmetrically arranged on both sides of the S-pole magnet (102); the limit block (104) and the N-pole magnet (103) are symmetrically arranged on both sides of the S-pole magnet (102); The lower sliding seat (105) is fixedly connected, the interior of which is symmetrically provided with a limit slot (106), the limit block (104) can be snapped into the limit slot (106), the gear box body (107) is fixedly connected to the lower sliding seat (105), the drive shaft body (115) is fixedly connected to the snap joint (114), the drive gear (116) is fixedly connected to the drive shaft body (115), the driven gear (117) is meshed with the drive gear (116), the driven gear (117) is meshed with the side rack (113), the side rack (113) is fixedly connected to the intermediate support frame (109), the support seat (132) is fixedly connected to the lower sliding seat (105), and the driven shaft body (134) is fixedly connected to the driven gear (117); The gearbox body (107) is provided with a driving shaft through hole (108) and a driven shaft groove (135); the lower part of the intermediate support frame (109) is provided with a block slide groove (112); the middle part of the intermediate support frame (109) is provided with a control block slide groove (110); a steel rope through hole (111) is provided in the control block slide groove (110); the middle part of the lower end of the intermediate support frame (109) is provided with a slide groove, and the slide groove is connected with the steel rope through hole (111).

3. The urban underground space engineering excavation support device according to claim 2 is characterized in that: The secondary auxiliary side fixing assembly comprises a fixed limiting clip (118), a clip limiting column (119), a steel rod body (121) and a connecting ear (133); the fixed limiting clip (118) is fixedly connected to the connecting ear (133); one end of the clip limiting column (119) is arranged in the connecting ear (133); the other end of the clip limiting column (119) is fixedly connected to the intermediate support frame (109); a steel rod through hole (120) is opened in the middle of the intermediate support frame (109); the steel rod body (121) passes through the steel rod through hole (120); and the fixed limiting clip (118) is arranged outside the steel rod body (121).

4. The urban underground space engineering excavation support device according to claim 3 is characterized by: The arch support angle adjustment component comprises a lower pull ear (122), an upper pull ear (125), an upper arc-shaped support frame (126), a pin shaft body (127) and a hinge block (128); both ends of the threaded sleeve (124) are threadedly connected to the threaded pull rod (123); one end of one of the threaded pull rods (123) is hinged to the lower pull ear (122); one end of the other threaded pull rod (123) is hinged to the upper pull ear (125); the upper pull ear (125) is fixedly connected to the upper arc-shaped support frame (126); the upper arc-shaped support frame (126) is hinged to the hinge block (128) through the pin shaft body (127); the hinge block (128) is fixedly connected to the intermediate support frame (109); and the lower pull ear (122) is fixedly connected to the intermediate support frame (109).

5. The urban underground space engineering excavation support device according to claim 4, characterized in that: The transverse support mechanism (2) comprises a long transverse support frame (200) and a short transverse support frame (201); the long transverse support frame (200) and the short transverse support frame (201) are of different lengths; and a medium transverse long support frame is provided between the long transverse support frame (200) and the short transverse support frame (201).

6. The urban underground space engineering excavation support device according to claim 5, characterized in that: The control block body (100) is slidably arranged in the control block slide groove (110), one end of the steel rope body (101) is fixedly connected to the upper wall of the control block slide groove (110), the steel rope body (101) passes through the steel rope through hole (111), the S-pole magnet (102) is arranged in the slide groove at the lower part of the steel rope through hole (111), and the lower part of the S-pole magnet (102) is fixedly connected with a reset spring, and one end of the reset spring is fixedly connected to the lower end of the intermediate support frame (109).

7. The urban underground space engineering excavation support device according to claim 6, characterized in that: The N-pole magnet (103) and the limit block (104) are each provided with two groups. The N-pole magnet (103) and the limit block (104) are symmetrically arranged in the block slide groove (112). The driving shaft body (115) is rotatably arranged in the driving shaft through hole (108). The clamping joint (114) is arranged outside the gear box body (107). The driven shaft body (134) is rotatably arranged in the driven shaft groove (135). The intermediate support frame (109) is arranged in the lower sliding seat (105).

8. The urban underground space engineering excavation support device according to claim 7, characterized in that: The gear box body (107) is provided with a crank installation groove (130) on the outside, and the crank body (131) can be snap-fitted into the crank installation groove (130), and the upper and lower sets of fixed limit clips (118) are connected by bolts.

9. The urban underground space engineering excavation support device according to claim 8, characterized in that: The threaded sleeves (124) are provided with two groups in total, and both ends of the long horizontal support frame (200) and the short horizontal support frame (201) can be clamped in the overlapping clamping groove (129).

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