A mortar conveying device in a PCCP pipeline

Abstract

The utility model relates to PCCP pipeline construction auxiliary device field discloses a mortar transportation device in PCCP pipeline, include: bottom plate, left, right side surface is provided with moving wheel, scissor mechanism is used for storing mortar, sets up on the bottom plate, stores mortar groove, is driven to lift by scissor mechanism, left, right side surface is connected with a piece of expansion joint respectively, and expansion joint is connected with the top support support wheel, and the top support support wheel is supported in the PCCP pipeline inner wall by the extension expansion joint. The utility model discloses one -off transportation a large amount of mortar through the mortar storage groove, avoids the construction personnel frequent in and out PCCP pipeline, promotes the efficiency of caulking construction, scissor mechanism is used for driving mortar storage groove to lift, and the mortar transportation device is convenient for keeping mortar storage groove at a lower height when moving, and the gravity center is moved down, is helpful to keep balance and avoid to dump, still provides side support for mortar storage groove through the expansion joint with the top support support wheel, further plays the role of avoiding device to fall down, promotes mortar transportation device stability.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices for PCCP pipeline construction, specifically to a mortar transportation device inside a PCCP pipeline. Background Technology

[0002] PCCP pipe is short for Prestressed Concrete Cylinder Pipe. During the installation of PCCP pipes, multiple PCCP pipe sections are typically spliced ​​together using a socket structure to form a complete PCCP pipe. During this process, a joint is formed at the joint between two adjacent PCCP pipe sections, which needs to be sealed to ensure the overall airtightness of the PCCP pipe.

[0003] In existing technologies, mortar grouting is generally used for sealing, so the quality of the grouting directly affects the overall sealing performance and structural stability of the pipeline. Mortar grouting is divided into internal and external grouting. Due to its special location, internal grouting usually requires construction personnel to enter the pipeline directly for grouting. Due to space limitations, mortar can only be transported from outside the PCCP pipeline to the grouting site using tools such as mortar buckets. However, the amount of mortar that can be carried at one time is small, requiring construction personnel to frequently enter and exit the PCCP pipeline to replenish the mortar, resulting in reduced construction efficiency. In actual construction, there is also a solution of using a mortar hopper truck to transport large amounts of mortar at once. However, because the inner wall of the PCCP pipeline is curved, the mortar hopper truck is prone to tipping over due to the center of gravity shifting when moving inside the PCCP pipeline. Utility Model Content

[0004] This invention provides a mortar transport device for PCCP pipelines to solve the above-mentioned technical problems.

[0005] Specifically, this utility model is: a mortar transport device inside a PCCP pipeline, comprising: The base plate has casters on its left and right sides; The scissor lift mechanism is mounted on the base plate. The slurry storage tank is used to store mortar. It is lifted by a scissor mechanism and has a telescopic plate connected to its left and right sides. The side of the telescopic plate away from the slurry storage tank is connected to a top support roller. By extending the telescopic plate, the top support roller is supported against the inner wall of the PCCP pipe.

[0006] Specifically, at least two support rods are provided on the left and right sides of the base plate, and sliding grooves corresponding to the support rods are also provided; the support rods are slidably disposed in the sliding grooves, and the moving wheels are disposed at the ends of the support rods away from the base plate. The base plate is also provided with a first limiting hole that communicates with the sliding groove. The support rod is provided with a plurality of second limiting holes that cooperate with the first limiting hole. The limiting rod passes through the first limiting hole and is inserted into the second limiting hole to lock the relative position of the support rod and the base plate.

[0007] Furthermore, the side of the support rod protrudes with a limiting strip, and the side wall of the sliding groove is provided with a limiting groove; when the support rod slides in the sliding groove, the limiting strip slides in the limiting groove and is limited by the limiting groove.

[0008] Furthermore, it also includes mounting plates located on the front and rear sides of the base plate. The mounting plates have vertical threaded through holes, and a first screw is threadedly fitted into the vertical threaded through holes. A rotating handle is provided at the top of the first screw.

[0009] Specifically, the telescopic plate is rotatably connected to the slurry storage tank; support plates are also provided on the left and right sides of the slurry storage tank. It also includes a telescopic rod, one end of which is hinged to the support plate and the other end to the telescopic plate; by adjusting the length of the telescopic rod, the telescopic plate can rotate around the connection point with the slurry storage tank.

[0010] Furthermore, the telescopic plate includes a socket plate hinged to the slurry storage tank, a socket slot is provided on the side of the socket plate away from the slurry storage tank, an insert plate is slidably disposed in the socket slot, and a top support wheel is disposed on the side of the insert plate away from the slurry storage tank; it also includes a locking structure for locking the relative position of the insert plate and the socket plate.

[0011] Furthermore, the locking structure includes a first locking hole disposed on the surface of the insert plate, and the insert plate is provided with a plurality of first insertion holes that cooperate with the first locking hole. The locking rod passes through the first locking hole and is inserted into the first insertion hole to lock the relative position of the insert plate and the insert plate.

[0012] Furthermore, the locking structure includes a second locking hole disposed on the surface of the insert plate, the second locking hole being a strip-shaped hole disposed along the sliding direction of the insert plate; the locking structure also includes a second insertion hole disposed on the insert plate, the second insertion hole moving within the range of the second locking hole when the insert plate slides within the insert plate; The locking structure also includes a second screw, with a positioning plate extending radially outward from the top of the second screw. The diameter of the positioning plate is larger than the width of the second locking hole. The bottom end of the second screw passes through the second locking hole and is screwed into the second insertion hole, so that the positioning plate is pressed against the surface of the socket plate to lock the relative position of the socket plate and the socket plate.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects: This invention utilizes a slurry storage tank to transport large quantities of mortar at once, avoiding frequent entry and exit of construction personnel into the PCCP pipeline and effectively improving the efficiency of grouting within the PCCP pipeline. The scissor mechanism lowers the slurry storage tank, ensuring it remains at a lower height (lower center of gravity) during movement, thus helping to maintain balance within the PCCP pipeline and prevent tipping. The scissor mechanism can also raise the slurry storage tank during grouting, facilitating mortar access for construction personnel. Furthermore, this invention connects telescopic plates with top-support wheels to the left and right sides of the slurry storage tank. Extending these plates allows the top-support wheels to brace against the PCCP pipeline, providing lateral support to the slurry storage tank and further preventing tipping and enhancing the stability of the mortar transport device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the device structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the detailed structure of the device of this utility model.

[0016] Figure 3 This is a structural schematic diagram of the device of this utility model from an inclined, upward-looking perspective.

[0017] Figure 4 This is a schematic diagram of the side structure of the device of this utility model.

[0018] Figure 5 for Figure 1 A three-dimensional schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 6 for Figure 4 A three-dimensional schematic diagram of the enlarged structure at point B.

[0020] The meanings of the labels in the diagram are as follows: Base plate—1; Support rod—101; Moving wheel—102; Mounting plate—103; Enlarged plate—104; First screw—105; Rotating handle—106; Sliding groove—107; First limiting hole—108; Second limiting hole—109; Limiting strip—110; Scissor lift mechanism—2; Slurry storage tank—3; Support plate—301; Telescopic rod—302; Outer sleeve—3021; ​​Ring sleeve—3022; Insert rod—3023; Telescopic plate—4; Top support roller—401; Socket plate—402; Socket slot—403; Insert plate—404; First locking hole—4051; Second locking hole—4052; First insertion hole—406; Second insertion hole—407; Second screw—408; Positioning plate—409. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0022] like Figures 1-4 As shown, a mortar transport device within a PCCP pipeline includes: The base plate 1 has casters 102 on its left and right sides; Scissor mechanism 2 is mounted on base plate 1; The slurry storage tank 3 is used to store mortar and is lifted by the scissor mechanism 2. A telescopic plate 4 is connected to the left and right sides respectively. A top support wheel 401 is connected to the side of the telescopic plate 4 away from the slurry storage tank 3. By extending the telescopic plate 4, the top support wheel 401 is supported against the inner wall of the PCCP pipe.

[0023] In this invention, the base plate 1 serves as the main supporting structure. The left and right sides of the base plate 1 are equipped with casters, allowing the device to move within the PCCP pipeline. The mortar is stored in the slurry storage tank 3, replacing the manual method of transporting mortar using buckets. This also avoids the problem of frequent entry and exit from the PCCP pipeline when manually transporting grouting mortar. By using the slurry storage tank 3 to store grouting mortar, a large quantity of grouting mortar can be transported at once, effectively improving mortar transportation efficiency and thus enhancing the efficiency of grouting construction. A scissor mechanism 2 is installed on the base plate 1 to raise and lower the slurry storage tank 3. On the one hand, lowering the height of the slurry storage tank 3 during transportation lowers the overall center of gravity of the device, improving stability during transport. On the other hand, raising the height of the slurry storage tank 3 during use makes it easier for construction personnel to retrieve mortar without frequent bending. The left and right sides of the slurry storage tank 3 are respectively connected to telescopic plates 4, and a top support wheel 401 is connected to the side of the telescopic plate 4 away from the slurry storage tank 3. During the movement of the device, the telescopic plates 4 are extended to make the top support wheel 401 support the PCCP pipeline, thereby providing lateral support for the slurry storage tank 3, reducing the possibility of the slurry storage tank 3 tipping over, and improving the overall stability of the device during use.

[0024] The scissor mechanism 2 is a very mature existing technology, and its specific structure and connection relationship will not be described in detail here.

[0025] It should be noted that the moving wheel 102 is a support wheel set in the vertical direction. It is mainly used to bear the weight of the whole device and the weight of the mortar stored in the slurry tank 3, and to make the whole device move along the axial direction of the PCCP pipeline. The moving wheel can also be set as a locking universal wheel. When the device reaches the construction site, the moving wheel is locked to prevent the mortar transport device from moving during the jointing construction.

[0026] As a preferred embodiment, Figures 1-4 As shown, at least two support rods 101 are respectively provided on the left and right sides of the base plate 1, and sliding grooves 107 corresponding to the support rods 101 are also provided; the support rods 101 are slidably disposed in the sliding grooves 107, and the moving wheel 102 is disposed at the end of the support rod 101 away from the base plate 1. The base plate 1 is also provided with a first limiting hole 108 that communicates with the sliding groove 107. The support rod 101 is provided with a plurality of second limiting holes 109 that cooperate with the first limiting hole 108. The limiting rod passes through the first limiting hole 108 and is inserted into the second limiting hole 109 to lock the relative position of the support rod 101 and the base plate 1.

[0027] In this embodiment, the sliding groove 107 is arranged in the left-right direction (that is, the direction perpendicular to the PCCP pipe axis). The support rod 101 can slide in the left-right direction within the sliding groove 107 to adjust the length of the support rod 101 extending outside the sliding groove 107, so that the moving wheels 102 at the bottom of the support rod 101 can stably and fully contact the inner wall of the PCCP pipe, thereby ensuring the overall stability of the device. When the support rod 101 slides within the sliding groove 107, one end of the limiting rod passes through the first limiting hole 108 and is inserted into a second limiting hole 109 on the support rod 101, thereby locking the relative position of the support rod 101 and the base plate 1.

[0028] As a further embodiment, such as Figures 1-4 As shown, a limiting strip 110 protrudes from the side of the support rod 101, and a limiting groove is provided on the side wall of the sliding groove 107; when the support rod 101 slides in the sliding groove 107, the limiting strip 110 slides in the limiting groove and is limited by the limiting groove.

[0029] In this embodiment, a limiting strip 110 protrudes from the side of the support rod 101, and a limiting groove is formed by the recessed side wall of the sliding groove 107. In this embodiment, the limiting refers to the fact that the shape and size of the limiting groove are consistent with the shape and size of the cross-section of the limiting strip 110. Thus, by using the cooperation of the limiting strip 110 and the limiting groove, the sliding process of the support rod 101 in the sliding groove 107 is assisted in limiting, thereby improving the connection strength and sliding accuracy between the support rod 101 and the sliding groove 107.

[0030] As a further embodiment, such as Figures 1-4 As shown, it also includes mounting plates 103 disposed on the front and rear sides of the base plate 1. The mounting plates 103 have vertical threaded through holes, and a first screw 105 is threadedly disposed in the vertical threaded through holes. A rotating handle 106 is provided on the top of the first screw 105.

[0031] In this embodiment, when the mortar transport device is transferred from the outside of the PCCP pipe to the inside of the PCCP pipe (at this time, the mortar storage tank 3 is empty), the first screw 105 can be threaded into the vertical threaded through hole by rotating the handle 106, and extend downwards into the vertical threaded through hole until it supports the inner wall of the PCCP pipe. At this time, continue to rotate the handle 106 to lift the entire device, so that when the support rod 101 slides in the sliding groove 107, the extension range of the support rod 101 is larger, which is convenient to adapt to PCCP pipes of different diameters. Then, by rotating the handle 106 in the opposite direction, the moving wheel 102 can be placed in a suitable position to ensure that the overall device is balanced and not easy to tip over.

[0032] Furthermore, when the mortar transport device is loaded with grouting mortar and moved to the internal grouting construction point, rotating the handle 106 causes the bottom end of the first screw 105 to press against the inner wall of the PCCP pipe, acting as a brake to prevent displacement of the mortar transport device. To avoid damage to the inner wall of the PCCP pipe, an enlarged plate 104 can be installed at the bottom of the first screw 105. The area of ​​the enlarged plate 104 is larger than the area of ​​the bottom end of the first screw 105, reducing the pressure on the contact surface by increasing the contact area and preventing damage to the inner wall of the PCCP pipe. Furthermore, an arc-shaped elastic pad, typically a rubber pad, can be installed on the lower surface of the enlarged plate 104 to further increase friction and ensure full contact. Preferably, the enlarged plate 104 is provided with an axially vertical rotating bearing, and the first screw 105 is vertically inserted into and fixed to the inner ring of the rotating bearing; a guide plate is also provided on both sides of the mounting plate 103 on the base plate 1, and a guide rod is provided on the guide plate that can slide vertically. The bottom end of the guide rod is fixedly connected to the enlarged plate 104, so that the enlarged plate 104 is guided by the guide rod when the rotating handle 106 is rotated, thus preventing the enlarged plate 104 from rotating with the rotation of the first screw 105.

[0033] As a preferred embodiment, such as Figures 1-4 As shown, the telescopic plate 4 is rotatably connected to the slurry storage tank 3; the left and right sides of the slurry storage tank 3 are also provided with support plates 301 respectively; It also includes a telescopic rod 302, one end of which is hinged to the support plate 301 and the other end is hinged to the telescopic plate 4; by adjusting the length of the telescopic rod 302, the telescopic plate 4 can rotate around the connection point with the slurry storage tank 3.

[0034] In this embodiment, support plates 301 are respectively installed on the left and right sides of the slurry storage tank 3 to serve as the basis for adjusting the angle of the telescopic plate 4. A telescopic rod 302 is hinged to the support plate 301, and the telescopic rod 302 is also hinged to the telescopic plate 4, allowing both the telescopic plate 4 and the telescopic rod 302 to rotate vertically. The telescopic plate 4 can rotate vertically around its connection point with the slurry storage tank 3, and the telescopic rod 302 adjusts its angle along with the rotation of the telescopic plate 4 without interference. The telescopic rod 302 is hinged to the support plate 301. When the length of the telescopic rod 302 changes, that is, when the telescopic rod 302 extends or retracts, the side away from the support plate 301 will cause the side of the telescopic plate 4 that is hinged to the telescopic rod 302 to rotate upward or downward, thereby achieving vertical rotation.

[0035] This document provides an alternative structure for a telescopic rod 302, including an outer sleeve 3021. One end of the outer sleeve 3021 is hinged to the support plate 301, and the other end has an opening with a rotatable ring 3022. The ring 3022 has an internal thread. The telescopic rod 302 also includes a insertion rod 3023, which has an external thread that engages with the internal thread in the ring 3022. When the ring 3022 is rotated, the internal thread in the ring 3022 engages with the insertion rod 3023 to extend or retract, thereby achieving the telescopic function of the telescopic rod 302. Alternatively, the above function can be achieved using a commercially available small electric actuator with a built-in battery.

[0036] As a further embodiment, such as Figures 1-4 As shown, the telescopic plate 4 includes a socket plate 402 hinged to the slurry storage tank 3. A socket 403 is provided on the side of the socket plate 402 away from the slurry storage tank 3. An insert plate 404 is slidably disposed in the socket 403. A top support wheel 401 is disposed on the side of the insert plate 404 away from the slurry storage tank 3. It also includes a locking structure for locking the relative position of the insert plate 404 and the socket plate 402.

[0037] In this embodiment, the socket plate 402 has a recessed slot 403 on the side away from the hinge point, which serves as a sliding area for the insert plate 404, thereby enabling the insert plate 404 to slide. The top support roller 401 is used to press against the inner wall of the PCCP pipe to provide lateral support. A locking structure is also included to lock the relative position of the insert plate 404 and the socket plate 402. By sliding the insert plate 404 within the socket plate 402, the position of the top support roller 401 is adjusted to press against the inner wall of the PCCP pipe. Then, the locking structure locks the relative position of the insert plate 404 and the socket plate 402 to ensure that the top support roller 401 and the inner wall of the PCCP pipe are always in a pressed state.

[0038] As a further embodiment, such as Figure 4 and Figure 6As shown, the locking structure includes a first locking hole 4051 provided on the surface of the socket plate 402, and a plurality of first insertion holes 406 provided on the insert plate 404 that cooperate with the first locking hole 4051. The locking rod passes through the first locking hole 4051 and is inserted into the first insertion hole 406 to lock the relative position of the insert plate 404 and the socket plate 402.

[0039] In this embodiment, the insert plate 404 is provided with a plurality of first insertion holes 406 that cooperate with the first locking hole 4051. The cooperation here means that when the insert plate 404 slides in the receiving plate 402, the first insertion holes 406 can be aligned with the first locking holes 4051 in sequence. Thus, by inserting a locking rod into the first locking hole 4051, so that one end of the locking rod can pass through the entire first locking hole 4051 and be inserted into a first insertion hole 406, the purpose of locking the relative positions of the receiving plate 402 and the insert plate 404 at the corresponding first insertion hole 406 can be achieved.

[0040] As a further embodiment, such as Figure 1 , Figure 2 and Figure 5 As shown, the locking structure includes a second locking hole 4052 disposed on the surface of the insert plate 402, the second locking hole 4052 being a strip-shaped hole disposed along the sliding direction of the insert plate 404; the locking structure also includes a second insertion hole 407 disposed on the insert plate 404, the second insertion hole 407 moving within the range of the second locking hole 4052 when the insert plate 404 slides within the insert plate 402; The locking structure also includes a second screw 408, with a positioning plate 409 extending radially outward from the top of the second screw 408. The diameter of the positioning plate 409 is larger than the width of the second locking hole 4052. The bottom end of the second screw 408 passes through the second locking hole 4052 and is screwed into the second insertion hole 407, so that the positioning plate 409 is pressed against the surface of the socket plate 402 to lock the relative position of the socket plate 404 and the socket plate 402.

[0041] In this embodiment, when the insert plate 404 slides within the socket plate 402, the second insertion hole 407 always moves within the range of the second locking hole 4052. The second screw 408 passes vertically through the second locking hole 4052 and screws into the second insertion hole 407. Continuing to rotate the second screw 408 in the screwing direction will apply a pulling force to the socket plate 402 in the direction of the positioning plate 409, causing the socket plate 402 to press against the inner wall of the insert plate 404, thereby achieving the purpose of locking the relative position of the insert plate 404 and the socket plate 402. When it is necessary to adjust the extension length of the insert plate 404, the second screw 408 is rotated in the opposite direction to release the force between the insert plate 404 and the socket plate 402, and to make the insert plate 404 and the socket plate 402 able to slide against each other, so as to adjust the extension length of the insert plate 404.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mortar transport device within a PCCP pipeline, characterized in that, include: The base plate (1) has casters (102) on its left and right sides. The scissor mechanism (2) is mounted on the base plate (1); The slurry storage tank (3) is used to store mortar. It is lifted by the scissor mechanism (2). A telescopic plate (4) is connected to the left and right sides respectively. A top support wheel (401) is connected to the side of the telescopic plate (4) away from the slurry storage tank (3). By extending the telescopic plate (4), the top support wheel (401) is supported against the inner wall of the PCCP pipe.

2. The mortar transport device in a PCCP pipeline as described in claim 1, characterized in that, At least two support rods (101) are provided on the left and right sides of the base plate (1), and sliding grooves (107) corresponding to the support rods (101) are also provided; the support rods (101) are slidably disposed in the sliding grooves (107) to the left and right, and the moving wheel (102) is disposed at the end of the support rod (101) away from the base plate (1); The base plate (1) is also provided with a first limiting hole (108) that communicates with the sliding groove (107), and the support rod (101) is provided with a plurality of second limiting holes (109) that cooperate with the first limiting hole (108). The limiting rod passes through the first limiting hole (108) and is inserted into the second limiting hole (109) to lock the relative position of the support rod (101) and the base plate (1).

3. A mortar transport device within a PCCP pipeline as described in claim 2, characterized in that, The support rod (101) has a protruding limiting strip (110) on its side, and the sliding groove (107) has a limiting groove on its side wall; when the support rod (101) slides in the sliding groove (107), the limiting strip (110) slides in the limiting groove and is limited by the limiting groove.

4. A mortar transport device within a PCCP pipeline as described in claim 2, characterized in that, It also includes mounting plates (103) set on the front and rear sides of the base plate (1). The mounting plates (103) have vertical threaded through holes, and a first screw (105) is threadedly fitted into the vertical threaded through holes. A rotating handle (106) is provided on the top of the first screw (105).

5. A mortar transport device within a PCCP pipeline as described in claim 1, characterized in that, The telescopic plate (4) is rotatably connected to the slurry storage tank (3); the left and right sides of the slurry storage tank (3) are also provided with support plates (301). It also includes a telescopic rod (302), one end of which is hinged to the support plate (301) and the other end is hinged to the telescopic plate (4); by adjusting the length of the telescopic rod (302), the telescopic plate (4) can rotate around the connection point with the slurry storage tank (3).

6. A mortar transport device within a PCCP pipeline as described in claim 5, characterized in that, The telescopic plate (4) includes a socket plate (402) hinged to the slurry storage tank (3), a socket (403) is provided on the side of the socket plate (402) away from the slurry storage tank (3), an insert plate (404) is slidably provided in the socket (403), and a top support wheel (401) is provided on the side of the insert plate (404) away from the slurry storage tank (3); it also includes a locking structure for locking the relative position of the insert plate (404) and the socket plate (402).

7. A mortar transport device within a PCCP pipeline as described in claim 6, characterized in that, The locking structure includes a first locking hole (4051) disposed on the surface of the socket plate (402), and a plurality of first insertion holes (406) provided on the insert plate (404) to cooperate with the first locking hole (4051). The locking rod passes through the first locking hole (4051) and is inserted into the first insertion hole (406) to lock the relative position of the insert plate (404) and the socket plate (402).

8. A mortar transport device within a PCCP pipeline as described in claim 6, characterized in that, The locking structure includes a second locking hole (4052) disposed on the surface of the socket plate (402), the second locking hole (4052) being a strip-shaped hole disposed along the sliding direction of the socket plate (404); the locking structure also includes a second insertion hole (407) disposed on the socket plate (404), the second insertion hole (407) moving within the range of the second locking hole (4052) when the socket plate (404) slides within the socket plate (402); The locking structure also includes a second screw (408), and a positioning plate (409) extends radially outward from the top of the second screw (408). The diameter of the positioning plate (409) is greater than the width of the second locking hole (4052). The bottom end of the second screw (408) passes through the second locking hole (4052) and is screwed into the second insertion hole (407), so that the positioning plate (409) is pressed against the surface of the socket plate (402) to lock the relative position of the socket plate (404) and the socket plate (402).

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