CN215369844U - Auxiliary fixing device for shield receiving well - Google Patents
Auxiliary fixing device for shield receiving well Download PDFInfo
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- CN215369844U CN215369844U CN202121612567.6U CN202121612567U CN215369844U CN 215369844 U CN215369844 U CN 215369844U CN 202121612567 U CN202121612567 U CN 202121612567U CN 215369844 U CN215369844 U CN 215369844U
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- fixing
- shield
- sealing element
- receiving well
- receiving
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Abstract
The utility model discloses an auxiliary fixing device for a shield receiving well, which comprises a receiving sleeve, wherein the receiving sleeve comprises two semicircular fixing rings which are bilaterally symmetrical, fixing lugs are symmetrically distributed at two end parts of the fixing rings, the two fixing rings are connected through a fastening bolt penetrating through the fixing lugs, a sealing element with a cross section in a shape of 'n' is arranged on the surface of the outer wall of the receiving sleeve, the sealing element is sleeved outside the fixed lugs after being attached, the bottom surfaces of two sides of the sealing element are attached to the outer walls of the fixing rings, and the sealing element is fixed on the fixing rings through the fastening bolts. The installation of receiving the sleeve is realized to the fixed ear that utilizes solid fixed ring both ends, later utilizes the sealing member to seal the junction of solid fixed ring and consolidates, prevents to ooze water, improves the security.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to an auxiliary fixing device for a shield receiving well.
Background
At present, subway construction in various places of China is constructed in a shield method on a large scale, a shield is started from a working well to enter a tunnel stratum or is pushed out from the tail end of the tunnel to enter the working well, when the stratum around the shield working well is loose sandy soil or saturated water-bearing clay with poor self-stability and strong water permeability, if reinforcement treatment is not carried out on the stratum, a large amount of soil body and underground water are necessarily collapsed into the working well after a working well enclosure structure, large-area ground surface around a hole is caused to sink, and underground pipelines and nearby buildings are endangered.
The shield steel sleeve occupies an extremely important position in tunnel construction, so that a shield can smoothly arrive at a correct posture, and accidents such as collapse prevention are the key points of construction. The shield reaches a novel shield arrival mode of direct ground reinforcement and receiving steel sleeve in shield construction engineering.
But traditional receiving steel sleeve is an overall structure, not only processing difficulty but also cost of transportation are high, split concatenation formula's shield steel sleeve has also appeared afterwards, then the in-process of reality sleeve using, infiltration often can appear in telescopic junction, the not high scheduling condition of security, shield tunnelling can produce than great moment of torsion in addition, this moment of torsion can be transmitted on the receiving sleeve, again by the outer support of receiving sleeve, the soil body is balanced, for avoiding the moment of torsion to cause the receiving sleeve to take place the skew or rock, need increase receiving sleeve outlying bearing structure intensity, the construction degree of difficulty and cost have been increased.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, an object of the present invention is to provide an auxiliary fixing device for a shield receiving well, which can smoothly receive a shield end and improve the sealing and reinforcing effect at the splicing position of a receiving sleeve.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides an auxiliary fixture for shield constructs receiving well, the device is including receiving the sleeve, receive the sleeve and include two semi-circular solid fixed rings of bilateral symmetry, gu fixed ring's both ends symmetric distribution has fixed ear, two gu through running through between the fixed ring the fastening bolt of fixed ear connects receive telescopic outer wall surface and be provided with the transversal sealing member of personally submitting "nearly" shape, make the sealing member cover is established in the outside of the fixed ear after the laminating, just the laminating of the both sides bottom surface of sealing member is in gu fixed ring's outer wall, through fastening bolt will the sealing member stabilizes gu on the fixed ring.
Furthermore, a plurality of first mounting holes are formed in the sealing element along the length direction of the sealing element, second mounting holes corresponding to the first mounting holes are formed in the fixing lugs, and the fastening bolts sequentially penetrate through the first mounting holes and the second mounting holes to achieve connection of the sealing element and the fixing lugs.
Further, the sealing element comprises a middle groove part and arc-shaped wings at the opposite sides, the groove width dimension of the groove part is twice of the thickness dimension of the fixing lugs, and the curvature of the arc-shaped wings is consistent with that of the fixing rings.
Further, a rubber gasket is arranged between the sealing element and the fixing ring.
Furthermore, support rods which are distributed perpendicular to the length direction of the fixing lugs are symmetrically arranged on two sides of the fixing lugs.
Furthermore, one end of the supporting rod is connected to the side wall of the fixing lug through a mounting part.
Furthermore, the center of installation department is provided with the mounting groove be provided with the internal thread on the inside wall of mounting groove, the one end of bracing piece is passed through threaded connection and is in inside the mounting groove.
Further, a buffer is arranged at the bottom of the mounting groove.
Compared with the prior art, the utility model has the following advantages:
the receiving sleeve is divided into a left fixing ring structure and a right fixing ring structure, so that the receiving sleeve is convenient to transport, when the receiving sleeve needs to be used, the fixing lugs at two ends of the fixing rings are used for mounting the receiving sleeve, and then the sealing parts are used for sealing and reinforcing the connecting parts (the joint parts of the fixing lugs) of the fixing rings, so that the connecting fit degree between the fixing rings at two sides is improved, water seepage is prevented, and the safety is improved.
(2) According to the shield tunneling machine, the supporting rods perpendicular to the length direction of the receiving sleeve are arranged on the two sides of the sealing element, the stability of the receiving sleeve at a target position is improved by the supporting rods, the torque generated by the receiving sleeve during shield tunneling can be balanced under the action of the supporting rods, the smooth receiving of the shield end is ensured, and the construction cost and the construction difficulty are reduced.
Drawings
FIG. 1 is a schematic view of an auxiliary fixture for a shield receiving well in one embodiment of the present invention;
FIG. 2 is a schematic view of a sealing member of the auxiliary fixture of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of the auxiliary fixture of FIG. 1;
FIG. 4 is a partial structural view of the auxiliary fixing device of the present invention;
FIG. 5 is a schematic view of an auxiliary fixing device according to another embodiment of the present invention;
fig. 6 is a schematic view of a sealing member of the auxiliary fixture of fig. 5.
Wherein, receive sleeve 1, solid fixed ring 2, fastening bolt 3, sealing member 4, rubber gasket 5, installation department 6, fixed ear 201, second mounting hole 2011, bracing piece 2012, first mounting hole 401, concave part 402, arc wing 403, mounting groove 601.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1 to 4, an auxiliary fixing device for a shield receiving well comprises a receiving sleeve 1, wherein the receiving sleeve 1 comprises two semicircular fixing rings 2 which are bilaterally symmetrical, fixing lugs 201 are symmetrically distributed at two end portions of each fixing ring 2, the two fixing rings 2 are connected through a fastening bolt 3 penetrating through the fixing lugs 201, a sealing element 4 with a cross section in a shape of 'n' is arranged on the surface of the outer wall of the receiving sleeve 1, so that the sealing element 4 is sleeved outside the fixed lugs 201 after being attached, the bottom surfaces of two sides of the sealing element 4 are attached to the outer wall of the fixing rings 2, and the sealing element 4 is fixed on the fixing rings 2 through the fastening bolts 3.
The receiving sleeve 1 is divided into a left fixing ring 2 structure and a right fixing ring 2 structure, so that the receiving sleeve is convenient to transport, when the receiving sleeve needs to be used, the fixing lugs 201 at the two ends of the fixing rings 2 are used for mounting the receiving sleeve, then the sealing piece 4 is used for sealing and reinforcing the joint of the fixing rings 2 (the joint of the fixing lugs), the bottom surfaces of the two sides of the sealing piece 4 are jointed on the outer wall of the fixing rings 2, the connection fit degree between the fixing rings at the two sides is improved, water seepage is prevented, and safety is improved.
As shown in fig. 1 and 2, in an embodiment of the present invention:
be provided with a plurality of first mounting holes 401 along its length direction on sealing member 4 fixed ear 201 is last be provided with the corresponding second mounting hole 2011 in first mounting hole 401 position, fastening bolt 3 passes in proper order first mounting hole 401 and second mounting hole 2011 realize sealing member 4 and fixed ear 201's being connected.
As shown in fig. 2 and 3, in the present embodiment:
the sealing member 4 includes a middle groove portion 402 and an arc wing 403 on the opposite side, the groove width dimension of the groove portion 402 is twice the thickness dimension of the fixing lug 201, and the curvature of the arc wing 403 is consistent with the curvature of the fixing ring 2.
So that the sealing element 4 can be completely attached to the outer circumferential wall of the fixing lug 201 of the receiving sleeve 1, ensuring that the sealing element 4 achieves a sealing reinforcement effect.
As shown in fig. 4, in the present embodiment:
a rubber gasket 5 is arranged between the sealing element 4 and the fixing ring 2.
The rubber gasket 5 further improves the sealing effect and achieves the waterproof and water seepage effect.
The rubber gasket 5 is of an arc-shaped structure and is attached to the surfaces of the fixing ring 2 and the sealing piece 4.
As shown in fig. 5, in another embodiment of the utility model:
One end of the support bar 2012 is connected to the side wall of the fixing lug 201 through the mounting portion 6.
According to the utility model, the support rods 2012 perpendicular to the length direction of the receiving sleeve 1 are arranged on the two sides of the sealing element 4, the stability of the receiving sleeve at a target position is improved by utilizing the support rods 2012, the torque generated by the receiving sleeve during shield tunneling is balanced under the action of the support rods 2012, the smooth receiving of a shield end head is ensured, and the construction cost and the construction difficulty are reduced.
As shown in fig. 6, in the present embodiment:
the center of installation department 6 is provided with mounting groove 601 be provided with the internal thread on the inside wall of mounting groove 601, threaded connection is passed through to the one end of bracing piece 2012 inside mounting groove 601.
The supporting rod 2012 is screwed in the mounting groove 601 on the side wall of the fixing lug 201, and the detachable mounting mode is convenient for the assembly and transportation of the connecting sleeve and can be repeatedly used.
The balance force of the support rod 2012 for the torque generated during shield tunneling is improved, and a buffer part is arranged at the bottom of the mounting groove 601. The buffer piece is not marked in the attached drawing, and a user can set a buffer gasket or a buffer spring according to the requirement of the user.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an auxiliary fixing device for shield constructs receiving well, the device is including receiving sleeve (1), its characterized in that, receive sleeve (1) including two semicircular fixed ring (2) of bilateral symmetry, the both ends symmetric distribution of fixed ring (2) has fixed ear (201), two through running through between the fixed ring (2) fastening bolt (3) of fixed ear (201) are connected the outer wall surface of receiving sleeve (1) is provided with transversal personally submitting "nearly" shape sealing member (4), makes sealing member (4) cover is established in the outside of fixed ear (201) after the laminating, just the laminating of the both sides bottom surface of sealing member (4) is in the outer wall of fixed ring (2), through fastening bolt (3) will sealing member (4) are firm on fixed ring (2).
2. The auxiliary fixing device for the shield receiving well is characterized in that a plurality of first mounting holes (401) are formed in the sealing element (4) along the length direction of the sealing element, second mounting holes (2011) corresponding to the first mounting holes (401) are formed in the fixing lugs (201), and the fastening bolts (3) sequentially penetrate through the first mounting holes (401) and the second mounting holes (2011) to achieve connection of the sealing element (4) and the fixing lugs (201).
3. An auxiliary fixture for a shield-receiving well according to claim 1, characterized in that the seal (4) comprises a central recessed portion (402) and opposite arcuate wings (403), the recessed portion (402) having a recess width dimension twice the thickness dimension of the fixing lugs (201), the arcuate wings (403) having a curvature corresponding to the curvature of the fixing ring (2).
4. An auxiliary fixture for a shield-receiving well according to claim 3, characterized in that a rubber gasket (5) is arranged between the sealing element (4) and the fixing ring (2).
5. An auxiliary fixture for a shield-receiving well according to claim 1, characterized in that support rods (2012) are symmetrically arranged on both sides of the fixing lug (201) and are distributed perpendicularly to the length direction thereof.
6. An auxiliary fixture for a shield-receiving well according to claim 5, characterized in that one end of the support rod (2012) is connected to the side wall of the fixing lug (201) by means of a mounting portion (6).
7. An auxiliary fixture for a shield receiving well according to claim 6, wherein a mounting groove (601) is formed at the center of the mounting portion (6), an internal thread is formed on the inner sidewall of the mounting groove (601), and one end of the support rod (2012) is screwed inside the mounting groove (601).
8. An auxiliary fixture for a shield receiving well according to claim 7, characterized in that a buffer is provided at the bottom of the mounting groove (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121612567.6U CN215369844U (en) | 2021-07-15 | 2021-07-15 | Auxiliary fixing device for shield receiving well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121612567.6U CN215369844U (en) | 2021-07-15 | 2021-07-15 | Auxiliary fixing device for shield receiving well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215369844U true CN215369844U (en) | 2021-12-31 |
Family
ID=79609477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121612567.6U Active CN215369844U (en) | 2021-07-15 | 2021-07-15 | Auxiliary fixing device for shield receiving well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215369844U (en) |
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2021
- 2021-07-15 CN CN202121612567.6U patent/CN215369844U/en active Active
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