Distributed underground crossing pipe culvert mounting joint

Abstract

The invention relates to the technical field of culvert pipe installation, in particular to a distributed underground crossing pipe culvert installation joint which comprises a pipe culvert body and a butt joint mechanism, a first connecting part and a second connecting part are arranged at the two ends of the pipe culvert body respectively, the butt joint mechanism comprises a supporting piece, and an inserting piece matched with the supporting piece is arranged in the second connecting part. A butt joint part is arranged in the supporting part, a clamping part matched with the butt joint part is arranged in the inserting part, the clamping assembly comprises a locking part, one end of the locking part is provided with a jacking part, and the first connecting part is provided with an unlocking part matched with the jacking part. When the pipe culvert body is installed and unlocked, the jacking piece is extruded by the unlocking piece, and the jacking piece is matched with the locking piece, so that the locking state of the butt joint part and the clamping part is released, and rapid installation of the steel corrugated pipe culvert is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipe culvert installation, in particular to a distributed underground crossing pipe culvert installation section. Background Art

[0002] The corrugated pipe installed in the culvert is also called a corrugated pipe culvert or a steel corrugated culvert. It refers to a threaded corrugated pipe for culverts buried under roads and railways. It is a circular corrugated pipe made of corrugated metal sheets or semi-circular corrugated steel sheets. It is widely used in roads, railways, small bridges, passages, retaining walls, and culverts in various mines, tunnel retaining wall support and other projects.

[0003] Assembled steel corrugated pipes are made of multiple pieces of corrugated assembled culvert plates connected and assembled. They have the advantages of thin plates, light weight, easy transportation and storage, simple construction process, and can solve the structural damage problems of bridges and culverts in cold northern regions. They are widely used in water supply and drainage in construction projects, such as drainage and flood control of highway embankments, to protect embankments from flood impacts, and to increase the service life of roads. However, in the existing technology, when splicing steel corrugated pipes, they are mainly connected by multiple sets of bolts, and the installation efficiency is relatively low. Summary of the invention

[0004] In view of the problem in the prior art that steel corrugated pipes are mainly connected by multiple sets of bolts when splicing, resulting in low installation efficiency, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a distributed underground crossing pipe culvert installation section.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: including a culvert body, a first connecting part and a second connecting part are respectively provided at both ends of the culvert body, the first connecting part and the second connecting part are provided with multiple groups of docking mechanisms for installing the culvert body, the docking mechanism includes a support member arranged on the first connecting part, an inserting member matching the support member is provided in the second connecting part, a docking part is provided in the support member, a clamping part matching the docking part is provided in the inserting member, and also includes a clamping assembly, the clamping assembly includes a locking member arranged in the support member, a push-in member is provided at one end of the locking member, and an unlocking member matching the push-in member is provided on the first connecting part.

[0007] As a preferred solution for the distributed underground culvert installation section of the present invention, wherein: a first connecting ring is provided at one end of the first connecting part, a first annular groove is provided in the first connecting ring, a second connecting ring is provided at one end of the second connecting part, the first connecting ring and the second connecting ring are butt-jointed, and the first annular groove corresponds to the position of the plug-in component.

[0008] As a preferred solution for the distributed underground crossing culvert installation section of the present invention, the support member includes a support block arranged in a first annular groove, a support groove is provided in the support block, openings are provided on both sides of the support groove, a socket is formed above the support groove, and a support plate is provided on the inner wall of the support groove.

[0009] As a preferred solution for the distributed underground culvert installation section of the present invention, the plug-in component includes a step block arranged on the second connecting ring, the vertical surface of the step block corresponds to the abutment plate, and a shaped block is arranged on the upper end surface of the step block, and the shaped block is correspondingly abutted in the socket.

[0010] As a preferred solution for the distributed underground crossing culvert installation section of the present invention, the docking portion includes a docking plate arranged on the upper end surface of the abutment plate, a contact portion is arranged at one end of the docking plate, a strip opening is arranged inside the docking plate, a strip groove is arranged at the position of the abutment plate relative to the strip opening, a tensioning spring is arranged on the inner wall of the strip groove, a movable block is arranged at one end of the tensioning spring, and the movable block is slidably connected in the strip opening.

[0011] As a preferred solution of the distributed underground culvert installation section of the present invention, a folding plate is rotatably connected inside the movable block, a first matching ring is arranged at one end of the folding plate, the first matching ring is stuck in the contact part, and a contact surface is arranged at one end of the folding plate.

[0012] As a preferred solution of the distributed underground crossing culvert installation section of the present invention, wherein: the clamping part includes a clamping plate arranged on the upper end surface of the step block, one end of the clamping plate is integrally formed with a limiting part, a slot is provided on the clamping plate, a slide groove is provided on the position of the clamping plate relative to the slot, a tension spring is provided on the inner wall of the slide groove, a tension strip is provided at one end of the tension spring, the tension strip is movably connected in the slot, one end of the tension strip is rotatably connected with a pull plate, one end of the pull plate is provided with a second matching ring, the second matching ring is clamped in the limiting part, and the first matching ring and the second matching ring correspond to each other.

[0013] As a preferred solution of the distributed underground culvert installation section of the present invention, the locking part includes a locking rod movably connected to the top of the inner wall of the support block, an auxiliary spring is sleeved on the locking rod, and a slot is provided on the outer wall of the locking rod, the slot is composed of an inclined surface and a horizontal surface, and the locking rod is directly opposite to the clamping position of the first matching ring and the second matching ring.

[0014] As a preferred solution of the distributed underground crossing culvert installation section of the present invention, wherein: the pushing part includes two groups of movable openings arranged in the first annular groove, and the two groups of movable openings are respectively movably connected with a push rod and an auxiliary rod, one end of the push rod passes through the support block and abuts in the slot, one end of the auxiliary rod passes through the support block and is provided with an arc seat, the arc seat abuts on the contact surface, the push rod and the auxiliary rod are respectively sleeved with deformation springs, and the deformation springs are respectively abutted on the support blocks.

[0015] As a preferred solution of the distributed underground culvert installation section of the present invention, the unlocking piece includes an annular groove arranged on the back of the first connecting ring, an auxiliary plate is arranged at one end of the top rod and the auxiliary rod passing through the annular groove, a sleeve is slid on the culvert body, a compression spring is arranged in the sleeve, the compression spring is pressed against the annular groove, and one end of the sleeve is in contact with the auxiliary plate.

[0016] The beneficial effects of the distributed underground crossing culvert installation section of the present invention: the present invention completes the fixation of the first connecting part and the second connecting part by making the positions of the first connecting ring and the second connecting ring correspond to each other, and then the inserting part pushes the supporting part. When unlocking, the unlocking part squeezes the pushing part, and the pushing part and the locking part cooperate, so that the locking state of the docking part and the clamping part is released, thereby ensuring the rapid installation of the corrugated culvert. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is the overall schematic diagram of the docking of the distributed underground crossing culvert installation section.

[0019] Figure 2 This is a schematic diagram of the coordination of the support and plug-in parts for the installation section of the distributed underground culvert.

[0020] Figure 3 Schematic diagram of the support and plug-in structure of the distributed underground culvert installation section.

[0021] Figure 4 Internal drawings of the supports and inserts for the installation sections of distributed underground culverts.

[0022] Figure 5 This is a schematic diagram of the structure of the clamping part of the distributed underground crossing culvert installation section.

[0023] Figure 6This is a schematic diagram of the overhead structure of the clamping part of the distributed underground crossing culvert installation section.

[0024] Figure 7 This is an enlarged structural diagram of point A of the distributed underground crossing culvert installation section.

[0025] Figure 8 This is a partial cross-sectional structural diagram of the unlocking parts of the distributed underground culvert installation section. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figures 1 to 8 , is the first embodiment of the present invention, which provides a distributed underground crossing culvert installation section, including a culvert body 100, wherein a first connecting portion 102 and a second connecting portion 103 are respectively provided at both ends of the culvert body 100, and a plurality of docking mechanisms 200 for installing the culvert body 100 are provided in the first connecting portion 102 and the second connecting portion 103, and the docking mechanism 200 includes a support member 201 provided on the first connecting portion 102, an inserting member 202 matching the support member 201 is provided in the second connecting portion 103, a docking portion 203 is provided in the support member 201, a clamping portion 204 matching the docking portion 203 is provided in the inserting member 202, and also includes a clamping assembly 300, the clamping assembly 300 includes a locking member 301 provided in the support member 201, a push-in member 302 is provided at one end of the locking member 301, and an unlocking member 303 matching the push-in member 302 is provided on the first connecting portion 102.

[0030] The pipe culvert body 100 is a small corrugated pipe culvert. In daily use, it is generally connected by multiple groups of bolts. In order to facilitate the connection between the pipe culverts, the present invention further improves the prior art by respectively providing a first connection part 102 and a second connection part 103 at both ends of the pipe culvert body 100. The first connection part 102 and the second connection part 103 are provided with a connection mechanism 200 for installing multiple groups of pipe culvert bodies 100, so as to facilitate the connection of multiple groups of pipe culverts. At the same time, the connection part of the first connection part 102 and the second connection part 103 is limited so that the insertion part 202 is pushed into the support part 201, and the connection part 203 is matched with the clamping part 204, so as to complete the fixing of the first connection part 102 and the second connection part 103, and the first connection part 102 and the second connection part 103 are unlocked by the clamping assembly 300.

[0031] Specifically, a first connecting ring 102a is integrally formed at one end of the first connecting portion 102, and a first annular groove 102b is provided in the first connecting ring 102a. A second connecting ring 103a is integrally formed at one end of the second connecting portion 103. The first connecting ring 102a and the second connecting ring 103a are butt-jointed, and the first annular groove 102b corresponds to the position of the insert 202. The first connecting ring 102a and the second connecting ring 103a are of the same size and are respectively arranged at both ends of the culvert body 100. When multiple groups of culvert bodies 100 are butt-jointed, it is only necessary to make the positions of the first connecting ring 102a and the second connecting ring 103a correspond to each other, and then the insert 202 is pushed into the supporting member 201, thereby completing the fixation of the first connecting portion 102 and the second connecting portion 103. When unlocking, the unlocking member 303 squeezes the pushing member 302, and the pushing member 302 cooperates with the locking member 301, thereby releasing the locking state of the butting portion 203 and the clamping portion 204.

[0032] Example 2, reference Figures 1 to 8 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a support member 201 of a distributed underground crossing culvert installation section, including a support block 201a fixedly connected to a first annular groove 102b, a support groove 201b is provided in the support block 201a, openings 201c are provided on both sides of the support groove 201b, a socket 201d is formed above the support groove 201b, and a stop plate 201e is integrally formed on the inner wall of the support groove 201b. The insert 202 includes a step block 202a fixedly connected to the second connecting ring 103a, the vertical surface of the step block 202a corresponds to the stop plate 201e, and an L-shaped block 202b is provided on the upper end surface of the step block 202a, and the L-shaped block 202b is correspondingly abutted in the socket 201d.

[0033] The present invention further defines the docking portion of the first connecting portion 102 and the second connecting portion 103, wherein a supporting groove 201b and a socket 201d are respectively formed in the supporting block 201a, and a support plate 201e is integrally formed on the inner wall of the supporting groove 201b, so that the step block 202a is more tightly connected to the supporting block 201a, and the support plate 201e cooperates with the vertical surface of the step block 202a, thereby improving the connection strength of the device.

[0034] Furthermore, the docking portion 203 includes a docking plate 203a fixedly connected to the upper end surface of the abutment plate 201e, a contact portion 203b is integrally formed at one end of the docking plate 203a, a strip opening 203c is provided in the docking plate 203a, a strip groove 203d is provided at a position of the abutment plate 201e relative to the strip opening 203c, a tensioning spring 203e is fixedly connected to the inner wall of the strip groove 203d, the tensioning spring 203e is a carbon spring with high strength, one end of the tensioning spring 203e is fixedly connected to a movable block 203f, the movable block 203f is slidably connected in the strip opening 203c, one end of the movable block 203f is rotatably connected to a folding plate 203g, one end of the folding plate 203g is connected to a first matching ring 203h, the contact portion 203b is arc-shaped, the first matching ring 203h is stuck in the contact portion 203b, and one end of the folding plate 203g is provided with a contact surface 203i.

[0035] The present invention further improves the structure of the docking plate 203a by slidingly connecting a movable block 203f in the docking plate 203a. The movable block 203f is in the shape of a strip and protrudes downward, and is slidably connected in the strip opening 203c, thereby ensuring the stability of the movable block 203f when moving. At the same time, a tensioning spring 203e is connected to the bottom end of the movable block 203f, and one end of the tensioning spring 203e is fixed to the inner wall of the strip groove 203d, thereby ensuring the restoring force of the movable block 203f. At the same time, a folding plate 203g is rotatably connected to one end of the movable block 203f, and the first matching ring 203h on the folding plate 203g is clamped in the arc-shaped contact portion 203b. In the initial state, the spring force of the tensioning spring 203e drives the folding plate 203g to rotate, so that the first matching ring 203h rotates at the contact portion 203b, ensuring that it corresponds to the clamping portion 204.

[0036] The clamping portion 204 includes a clamping plate 204a fixedly connected to the upper end surface of the step block 202a, one end of the clamping plate 204a is integrally formed with a limiting portion 204b, a slot 204c is provided on the clamping plate 204a, a slide groove 204d is provided at a position of the clamping plate 204a relative to the slot 204c, a tension spring 204e is fixedly connected to the inner wall of the slide groove 204d, one end of the tension spring 204e is fixedly connected to a tension bar 204f, the tension bar 204f is movably connected in the slot 204c, one end of the tension bar 204f is rotatably connected to a pull plate 204g, one end of the pull plate 204g is provided with a second matching ring 204h, the second matching ring 204h is clamped in the limiting portion 204b, and the first matching ring 203h and the second matching ring 204h correspond to each other.

[0037] The present invention further defines the locking state of the clamping portion 204 and the docking plate 203a, wherein the first matching ring 203h and the second matching ring 204h are both in a semicircular ring state. When the inserting member 202 is docked with the supporting member 201, due to the resistance of the inclined surface, the first matching ring 203h and the second matching ring 204h are attached and rotated to a certain angle. At this time, the contact portion 203b and the limiting portion 204b limit the first matching ring 203h and the second matching ring 204h, thereby completing the preliminary fixation of the first matching ring 203h and the second matching ring 204h. At the same time, the first matching ring 203h and the second matching ring 204h are fixed again by the clamping assembly 300, and can be unlocked by the clamping assembly 300.

[0038] The rest of the structure is the same as that of Example 1.

[0039] During use, when it is necessary to dock multiple groups of culvert bodies 100, it is only necessary to align the positions of the first connecting ring 102a and the second connecting ring 103a, and then insert the insert 202 into the support member 201. At this time, the step block 202a is correspondingly inserted into the support groove 201b and the socket 201d, so that the step block 202a is more tightly connected to the support block 201a, and at the same time, the abutment plate 201e cooperates with the vertical surface of the step block 202a to improve the connection strength. At this time, the first matching ring 203h and the second matching ring 204h are in contact, and under the pressure of the inclined surface, the first matching ring 203h and the second matching ring 204h are driven to move in the contact part 203b and the limit part 204b. At this time, the first matching ring 203h and the second matching ring 204h are restricted in direction, completing the fixation of the first connection part 102 and the second connection part 103.

[0040] Example 3, reference Figures 1 to 8, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a distributed underground culvert installation section, including the distributed underground culvert installation section in the above embodiment, and the locking member 301 includes a locking rod 301a movably connected to the top of the inner wall of the support block 201a, and an auxiliary spring 301b is sleeved on the locking rod 301a, and the auxiliary spring 301b is a carbon spring. A slot 301c is provided on the outer wall of the locking rod 301a, and the slot 301c is composed of an inclined surface 301d and a horizontal surface 301e. The locking rod 301a is directly opposite to the clamping position of the first matching ring 203h and the second matching ring 204h.

[0041] The present invention further improves the docking state of the first matching ring 203h and the second matching ring 204h. Since a circular hole structure is formed between the first matching ring 203h and the second matching ring 204h, a locking rod 301a is movably connected to the inner wall of the support block 201a, and the locking rod 301a corresponds to the circular hole structure. When the locking rod 301a is inserted into the circular hole structure, the second fixation of the first matching ring 203h and the second matching ring 204h is ensured, and the fixation of multiple groups of pipe culverts is completed at this time;

[0042] Specifically, the ejector 302 includes two groups of movable openings arranged in the first annular groove 102b, and the two groups of movable openings are respectively movably connected with an ejector rod 302a and an auxiliary rod 302b. One end of the ejector rod 302a passes through the support block 201a and abuts against the slot 301c. One end of the auxiliary rod 302b passes through the support block 201a and is fixed with an arc seat 302c. The arc seat 302c abuts against the contact surface 203i. The ejector rod 302a and the auxiliary rod 302b are respectively sleeved with a deformation spring 302d. The deformation springs 302d are respectively pressed against the support blocks 201a, and the unlocking member 303 includes an annular groove 303a arranged on the back side of the first connecting ring 102a. The top rod 302a and the auxiliary rod 302b pass through one end of the annular groove 303a and are fixedly connected with an auxiliary plate 303b. A sleeve ring 303c is slid on the culvert body 100, and a compression spring 303d is arranged in the sleeve ring 303c. The compression spring 303d is pressed against the annular groove 303a, and one end of the sleeve ring 303c is in contact with the auxiliary plate 303b.

[0043] The present invention provides a movable ring 303c, and one end of the ring 303c contacts the auxiliary plate 303b, thereby driving the top rod 302a and the auxiliary rod 302b on the auxiliary plate 303b to contact the resistance surface 203i and the slot 301c, thereby releasing the locking state of the first matching ring 203h and the second matching ring 204h.

[0044] The rest of the structure is the same as that of Example 2.

[0045] During use, when it is necessary to unlock the two groups of culvert bodies 100, it is only necessary to press the ring 303c inward, and the ring 303c contacts the auxiliary plate 303b. At this time, the push rod 302a and the auxiliary rod 302b squeeze the contact surface 203i and the slot 301c respectively. When the push rod 302a contacts the slot 301c, the locking rod 301a is driven to move upward, and the arc seat 302c on the auxiliary rod 302b contacts the contact surface 203i, thereby driving the folding plate 203g to rotate on the movable block 203f. At this time, the locking state of the first matching ring 203h and the second matching ring 204h is released, and the disassembly of multiple groups of culvert bodies 100 is completed.

[0046] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, improvements, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0047] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0048] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A distributed underground culvert installation section, characterized in that: The pipe culvert body (100) comprises a first connecting portion (102) and a second connecting portion (103) respectively disposed at two ends of the pipe culvert body (100); the first connecting portion (102) and the second connecting portion (103) are provided with a plurality of groups of docking mechanisms (200) for installing the pipe culvert body (100); The docking mechanism (200) comprises a support member (201) arranged on a first connecting portion (102); an inserting member (202) matching the support member (201) is arranged in the second connecting portion (103); a docking portion (203) is arranged in the support member (201); and a clamping portion (204) matching the docking portion (203) is arranged in the inserting member (202); The invention also comprises a snap-on assembly (300), wherein the snap-on assembly (300) comprises a locking member (301) arranged in the supporting member (201), one end of the locking member (301) is provided with a push-in member (302), and the first connecting portion (102) is provided with an unlocking member (303) matching the push-in member (302).

2. The distributed underground culvert installation section according to claim 1 is characterized in that: A first connecting ring (102a) is provided at one end of the first connecting portion (102), and a first annular groove (102b) is provided in the first connecting ring (102a); A second connecting ring (103a) is provided at one end of the second connecting portion (103), the first connecting ring (102a) and the second connecting ring (103a) are butt-jointed, and the first annular groove (102b) corresponds to the position of the insert (202).

3. The distributed underground culvert installation section according to claim 2 is characterized in that: The support member (201) comprises a support block (201a) arranged in a first annular groove (102b), a support groove (201b) being arranged in the support block (201a), openings (201c) being arranged on both sides of the support groove (201b), a socket (201d) being formed above the support groove (201b), and a stop plate (201e) being arranged on the inner wall of the support groove (201b).

4. The distributed underground culvert installation section according to claim 3 is characterized in that: The insert (202) comprises a stepped block (202a) arranged on the second connecting ring (103a), the vertical surface of the stepped block (202a) corresponds to the abutment plate (201e), and an L-shaped block (202b) is arranged on the upper end surface of the stepped block (202a), and the L-shaped block (202b) abuts against the socket (201d) accordingly.

5. The distributed underground culvert installation section according to claim 4 is characterized in that: The docking portion (203) comprises a docking plate (203a) arranged on the upper end surface of the abutment plate (201e), a contact portion (203b) being arranged at one end of the docking plate (203a), a strip opening (203c) being arranged inside the docking plate (203a), a strip groove (203d) being arranged at a position of the abutment plate (201e) relative to the strip opening (203c), a tensioning spring (203e) being arranged on the inner wall of the strip groove (203d), a movable block (203f) being arranged at one end of the tensioning spring (203e), and the movable block (203f) being slidably connected inside the strip opening (203c).

6. The distributed underground culvert installation section according to claim 5, characterized in that: One end of the movable block (203f) is rotatably connected to a folding plate (203g), one end of the folding plate (203g) is provided with a first matching ring (203h), the first matching ring (203h) is stuck in the contact portion (203b), and one end of the folding plate (203g) is provided with a contact surface (203i).

7. The distributed underground culvert installation section according to claim 6, characterized in that: The clamping portion (204) comprises a clamping plate (204a) arranged on the upper end surface of the step block (202a), one end of the clamping plate (204a) is integrally formed with a limiting portion (204b), a slot (204c) is provided on the clamping plate (204a), a slide groove (204d) is provided at a position of the clamping plate (204a) relative to the slot (204c), and a tension spring (204e) is provided on the inner wall of the slide groove (204d), and the tension spring A stretching strip (204f) is provided at one end of the spring (204e), and the stretching strip (204f) is movably connected in the slot (204c). One end of the stretching strip (204f) is rotatably connected to a pull plate (204g), and one end of the pull plate (204g) is provided with a second matching ring (204h), and the second matching ring (204h) is stuck in the limiting portion (204b), and the first matching ring (203h) corresponds to the second matching ring (204h).

8. The distributed underground culvert installation section according to claim 7, characterized in that: The locking member (301) comprises a locking rod (301a) movably connected to the top end of the inner wall of the support block (201a); an auxiliary spring (301b) is sleeved on the locking rod (301a); a clamping groove (301c) is provided on the outer wall of the locking rod (301a); the clamping groove (301c) is composed of an inclined surface (301d) and a horizontal surface (301e); the locking rod (301a) is directly opposite to the clamping position of the first matching ring (203h) and the second matching ring (204h).

9. The distributed underground culvert installation section according to claim 8, characterized in that: The ejector member (302) comprises two groups of movable openings arranged in the first annular groove (102b), and the two groups of movable openings are respectively movably connected with an ejector rod (302a) and an auxiliary rod (302b), one end of the ejector rod (302a) passes through the support block (201a) and abuts against the slot (301c), one end of the auxiliary rod (302b) passes through the support block (201a) and is provided with an arc seat (302c), and the arc seat (302c) abuts against the contact surface (203i), and the ejector rod (302a) and the auxiliary rod (302b) are respectively sleeved with deformation springs (302d), and the deformation springs (302d) respectively abut against the support block (201a).

10. The distributed underground culvert installation section according to claim 9, characterized in that: The unlocking member (303) comprises an annular groove (303a) arranged on the back side of the first connecting ring (102a); an auxiliary plate (303b) is arranged at one end of the push rod (302a) and the auxiliary rod (302b) passing through the annular groove (303a); a sleeve ring (303c) is slidably arranged on the culvert body (100); a compression spring (303d) is arranged inside the sleeve ring (303c); the compression spring (303d) is pressed against the annular groove (303a); and one end of the sleeve ring (303c) is in contact with the auxiliary plate (303b).

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