Bottom plate embedded type retaining device suitable for pipe jacking

Abstract

The utility model provides a bottom plate embedded type retaining device suitable for a top pipe. The device comprises an adjusting box, a base plate and a locking device, the two retaining blocks are arranged on the top of the adjusting box in a protruding mode, and each retaining block is connected to the adjusting box in a sliding mode in the length direction of the adjusting box. The power output end of the driving assembly is connected with the two retaining blocks. According to the utility model, the two retaining blocks are driven by the driving assembly to move towards each other or move away from each other, the distance between the retaining blocks is adjusted, the two retaining blocks move away from each other to the two sides of a pipe joint or a pipe jacking machine head so as to give way to the jacking of a jack to the pipe joint or the pipe jacking machine head, and after the pipe joint or the pipe jacking machine head is jacked in place and the jack retreats, the pipe joint or the pipe jacking machine head can be jacked off. The two retaining blocks move oppositely to the position between the pipe joint and the jack so as to limit and retreat the pipe joint or the pipe jacking machine head, retaining operation can be carried out on the pipe jacking machine heads with different widths, time and labor are saved, and meanwhile operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-retraction devices, in particular to a bottom plate embedded anti-retraction device suitable for jacking pipes. Background Art

[0002] The pipe jacking method is to overcome the friction between the pipe or pipe section and the surrounding soil by using the jacking force generated by the jacking equipment in the working well, push the pipe into the soil according to the designed slope, and transport the soil away. The principle is to use the thrust of the main jacking cylinder and the relay room to continuously cut the soil and excavate the pipe section with the pipe jacking machine until it passes through the stratum to the receiving well, so as to realize trenchless construction. The existing pipe jacking machine head fixes the pipe section on the bottom plate through the stop rod to achieve the fixation and withdrawal of the pipe section.

[0003] However, the above-mentioned pipe joint fixing method requires manual on-site construction, which is not only time-consuming and labor-intensive, but also prone to safety accidents. Summary of the invention

[0004] In view of this, the utility model proposes a bottom plate embedded anti-retraction device suitable for jacking pipes, aiming to solve the problem that it is time-consuming and labor-intensive and prone to safety accidents to fix the joints on the jacking machine head on the bottom plate through anti-retraction rods.

[0005] The utility model proposes a bottom plate embedded anti-recognition device suitable for jacking pipes, the device comprises: an adjusting box, which is used to be embedded in a supporting bottom plate and placed at a position to be stopped; two anti-recognition blocks, which are protruding from the top of the adjusting box, and each of the anti-recognition blocks is slidably connected to the adjusting box along the length direction of the adjusting box; a driving component, the power output end of which is respectively connected to the two anti-recognition blocks, and is used to drive the two anti-recognition blocks to move toward or away from each other, so that the two anti-recognition blocks move away from each other to the two sides of a pipe section or a jacking machine head, so as to make way for the jack to press the pipe section or the jacking machine head, and after the pipe section or the jacking machine head is pressed in place and the jack retreats, the two anti-recognition blocks can move toward each other to between the pipe section and the jack, so as to limit the position and stop the pipe section or the jacking machine head.

[0006] Furthermore, the above-mentioned bottom plate embedded anti-recognition device suitable for top pipe, the driving component includes: a driving motor; a transmission mechanism, whose power input end is connected to the power output end of the driving motor, and the power output end is respectively connected to the two anti-recognition blocks, for converting the rotation of the driving motor into the toward or away movement of the two anti-recognition blocks.

[0007] Furthermore, the above-mentioned bottom plate embedded anti-recoil device suitable for top pipe, the transmission mechanism includes: a screw, which is arranged inside the adjusting box along the length direction of the adjusting box, the screw is also rotatably connected to the adjusting box, and the screw is connected to the power output end of the driving motor, the screw is provided with two threaded sections arranged in opposite directions, and the screw is used to rotate synchronously with the driving motor; two threaded blocks, which are respectively mounted on the two threaded sections of the screw, and the two threaded blocks are respectively adapted to the two threaded sections, for driving the two threaded blocks to move toward or away from each other when the screw rotates, thereby driving the two anti-recoil blocks to move toward or away from each other.

[0008] Furthermore, the above-mentioned bottom plate embedded anti-retraction device suitable for top pipes has a slide groove on the top wall of the adjusting box along its length direction, and two sliding sliders are provided in the slide groove, one end of the two sliders are respectively connected to the two threaded blocks, and the other end is respectively connected to the two anti-retraction blocks.

[0009] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for top pipe, the end of the screw rod is rotatably connected to the wall plate of the adjustment box through a bearing.

[0010] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for the top pipe, the driving motor is arranged on the outside of the adjusting box, the transmission mechanism is placed inside the adjusting box, and the power output end of the driving motor can be rotatably extended to the side wall penetrating the adjusting box and extending to the inside of the adjusting box.

[0011] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for the top pipe, the adjustment box is provided with a clamping block for being detachably clamped in the clamping groove of the supporting bottom plate, so as to adjust the position of the adjustment box based on the position to be stopped.

[0012] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for top pipe, there are multiple blocks and they are arranged at intervals along the length direction of the adjustment box.

[0013] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for the top pipe, the clamping block is arranged on the bottom wall of the adjustment box.

[0014] Furthermore, in the above-mentioned bottom plate embedded anti-retraction device suitable for jacking pipes, the limiting pressing end of the anti-retraction block extends to one side of the adjusting box, and is used for pressing and contacting the end wall of the jacking machine head or pipe section placed on one side of the adjusting box.

[0015] The utility model provides a bottom plate embedded anti-recognition device suitable for jacking pipes, which plays a supporting and fixing role through an adjustment box; the two anti-recognition blocks are driven to move toward or away from each other through a driving component, and the spacing between the anti-recognition blocks can be adjusted so that the two anti-recognition blocks move away from each other to the two sides of the pipe section or the jacking machine head, so as to make way for the jack to press the pipe section or the jacking machine head, and after the pipe section or the jacking machine head is pressed into place and the jack retreats, the two anti-recognition blocks can move toward each other to between the pipe section and the jack, so as to limit the retreat of the pipe section or the jacking machine head, and at the same time, the anti-recognition operation can also be performed on jacking machine heads of different widths, which saves time and effort while reducing operating costs, and solves the problem that the joints on the existing jacking machine head are fixed to the bottom plate by anti-recognition rods, which is time-consuming and labor-intensive and prone to safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0017] Figure 1 A schematic diagram of the structure of the bottom plate embedded type backstop device applicable to the top pipe provided by the embodiment of the utility model in the use state;

[0018] Figure 2 A schematic diagram of the structure of the bottom plate embedded type backstop device suitable for jacking provided by the embodiment of the utility model in the state of being used in combination with a jack;

[0019] Figure 3 A top view of a bottom plate embedded type backstop device suitable for jacking pipes provided in an embodiment of the utility model in use;

[0020] Figure 4 A schematic diagram of the structure of a bottom plate embedded type backstop device applicable to a top pipe provided in an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the structure of a drive assembly provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] See also Figures 1 to 4 , which shows the preferred structure of the bottom plate embedded type backstop device applicable to the top pipe provided by the embodiment of the utility model. As shown in the figure, the backstop device includes: an adjustment box 1, two backstop blocks 2, and a driving assembly 3; wherein,

[0024] The adjustment box 1 is used to be embedded in the support base plate 4 and placed at the position to be stopped. Specifically, the support base plate 4 can be a concrete base plate, which supports the adjustment box 1 and the jacking head 5, and the pipe sections 6 are installed on the jacking head 5 section by section. In this embodiment, one or more guide rails are provided on the support base plate 4 to guide the excavation of the jacking head 5 and the pipe sections 6, so that the jacking head 5 and the pipe sections 6 can move forward under the top pressure of the jack, so as to continuously cut the soil and excavate to realize non-excavation construction. An embedding groove 41 can be provided on the support base plate 4 at the position to be stopped, and the adjustment box 1 is adapted to the embedding groove 41. The adjustment box 1 can be placed in the embedding groove 41, and the adjustment box 1 is connected to the support base plate 4 in a detachable manner, so as to adjust the installation position of the adjustment box 1, and the stop limit of different positions to be stopped can be realized. In this embodiment, a block 11 is provided on the adjustment box 1, which is used to be detachably mounted in the slot 42 of the support base plate 4, so as to adjust the position of the adjustment box 1 based on the position to be stopped; a plurality of slots 42 are fixedly opened on both sides of the top end of the support base plate 4 away from the top pipe head 5. Among them, the block 11 is arranged on the bottom wall of the adjustment box 1, and the blocks 11 are multiple and arranged at intervals along the length direction of the adjustment box 1, which can ensure the stability of the installation of the adjustment box 1. In this embodiment, the size of the slot 42 corresponds to the size of the block 11. The slot 42 and the block 11 are used in combination, so that the adjustment box 1 can be easily installed in different positions, thereby improving practicality; the adjustment box 1 is fixed by the blocks 11 fixedly installed on both sides of the bottom end and the slot 42 fixedly opened on the top end of the support base plate 4. The block 11 and the slot 42 are used in combination to achieve a fixing effect, thereby preventing the adjustment box 1 from being displaced during operation.

[0025] Two stop blocks 2 are convexly arranged on the top of the adjustment box 1, and each of the stop blocks 2 is slidably connected to the adjustment box 1 along the length direction of the adjustment box 1. Specifically, the two stop blocks 2 are arranged above the adjustment box 1, and each of the stop blocks 2 is slidably connected to the adjustment box 1 along the length direction of the adjustment box 1, so as to adjust the positions of the two stop blocks 2.

[0026] The power output end of the driving component 3 is respectively connected to the two stop blocks 2, and is used to drive the two stop blocks 2 to move toward or away from each other, so that the two stop blocks 2 move away from each other to the pipe jacking machine head 5 or are placed on both sides of the pipe jacking machine head 5, so as to make way for the jack 7 to press the pipe jacking machine head 5 or the pipe section 6, and after the pipe jacking machine head 5 or the pipe section 6 is pressed into place and the jack 7 retreats, the two stop blocks 2 can move toward each other to between the pipe jacking machine head 5 or the pipe section 6 and the jack 7, so as to limit the retreat of the pipe jacking machine head 5 or the pipe section 6. Specifically, the driving component 3 can be set on the adjusting box 1, and is used to drive the two stop blocks 2 to move toward or away from each other, so that during the process of the jack 7 pressing and pushing the pipe jacking machine head 5 or the pipe section 6, the driving component 3 can drive the two stop blocks 2 to move away from each other until they move to both sides of the pipe jacking machine head 5 or the pipe section 6 (such as Figure 4 In particular, before the jack 7 is pushed forward, the two stop blocks 2 move in opposite directions to avoid interfering with the advancement of the jack 7. After the jacking head 5 or the pipe section 6 is pushed into place, the jack 7 retracts, and the driving assembly 3 drives the two stop blocks 2 to move toward each other until they move to the position shown in FIG. Figure 4 The position shown is between the pipe section 6 and the jack 7, so that the limiting pressing ends of the two stop blocks 2 (such as Figure 4 The right end wall shown in the figure) is pressed against the left side wall of the jacking machine head 5 or the pipe section 6 to prevent the jacking machine head 5 or the pipe section 6 from moving to the left, i.e. retreating; in particular, the two stop blocks 2 can move toward and away from each other to adjust the spacing between the stop blocks 1, so that the two stop blocks 2 can stop and give way to the jacking machine heads 5 or the pipe sections 6 of different widths, saving time and effort while reducing operating costs. In this embodiment, the limit pressing end of the stop block 2 extends to one side of the adjustment box 1 (such as Figure 4 The right side shown in the figure) is used to press against the end wall of the jacking machine head 5 or the pipe section 6 placed on one side of the adjustment box 1 to prevent the jacking machine head 5 or the pipe section 6 from retreating onto the adjustment box 1.

[0027] Continue to see Figure 3 and Figure 5The drive assembly 3 may include: a drive motor 31 and a transmission mechanism 32; wherein the power input end of the transmission mechanism 32 is connected to the power output end of the drive motor 31, and the power output end is respectively connected to the two stop blocks 2, so as to convert the rotation of the drive motor 31 into the movement toward or away from each other of the two stop blocks 2. Specifically, the drive motor 31 can be electrically driven, and the power is transmitted and converted through the transmission mechanism 32, so as to convert the rotation of the drive motor 31 into the movement toward or away from each other of the two stop blocks 2, and then the spacing between the two stop blocks 2 can be adjusted to realize the switching of different states and the stop operation of the jacking machine head 5 or pipe section 6 of different widths. wherein the drive motor 31 is arranged outside the regulating box 1, and the drive motor 31 is fixedly mounted on one side of the regulating box 1 (such as Figure 5 As shown in the lower side, the transmission mechanism 32 is placed inside the regulating box 1, and the power output end of the drive motor 31 can be rotatably extended to the side wall penetrating the regulating box 1 and extending to the inside of the regulating box 1 and connected with the transmission mechanism 32 placed in the regulating box 1.

[0028] Continue to see Figure 5 The transmission mechanism 32 includes: a screw 321 and two threaded blocks 322; wherein the screw 321 is arranged inside the adjusting box 1 along the length direction of the adjusting box 1, the screw 321 is also rotatably connected to the adjusting box 1, and the screw 321 is connected to the power output end of the driving motor 31, and the screw 321 is provided with two threaded sections 3211 arranged in opposite directions of the threads, and the screw 321 is used to rotate synchronously with the driving motor 31; the two threaded blocks 322 are respectively sleeved on the two threaded sections 3211 of the screw 321, and the two threaded blocks 322 are respectively adapted to the two threaded sections 3211, and are used to drive the two threaded blocks 322 to move toward or away from each other when the screw 321 rotates, thereby driving the two stop blocks 2 to move toward or away from each other.

[0029] Specifically, the power output end of the drive motor 31 extends to the interior of the adjustment box 1 and is connected to the screw 321. The two sections of the screw 321 are arranged in opposite directions, that is, two threaded sections 3211 are provided at both ends of the screw 321, and the thread directions of the two threaded sections 3211 are arranged in opposite directions. Threaded blocks 322 are sleeved on both ends of the screw 321, and the two threaded blocks 322 can be connected to the two stop blocks 2 respectively. The screw 321 can be driven to rotate by starting the drive motor 31. Since the two ends of the screw 321 are arranged in opposite directions, the two threaded blocks 322 will be displaced in relative or opposite directions, thereby driving the stop blocks 2 to move in relative or opposite directions, thereby adjusting the spacing of the stop blocks 2, and the stop operation can be performed on the jacking machine heads 5 of different widths, saving time and effort while reducing operating costs. Among them, the end of the screw 321 can be rotatably connected to the wall panel of the adjustment box 1 through a bearing 324. For example, the end of the screw 321 is away from the drive motor 31 (such as Figure 5 The top end shown in the figure is rotatably connected to the inner wall of the regulating box 1 through a bearing 324. The drive motor 31 is provided to drive the screw rod 321 to rotate, which is convenient for operation.

[0030] The top wall of the regulating box 1 is provided with a slide groove 12 along its length direction, and two slidable sliders 33 are arranged in the slide groove 12, and one end of the two sliders 33 is respectively connected to the two threaded blocks 32, and the other end is respectively connected to the two stop blocks 2. Specifically, the top of the regulating box 1 is fixedly provided with a slide groove 12, and the top of the threaded block 322 is provided with a slider 33 installed in the slide groove 12, and the top of the slider 33 is fixedly installed with a stop block 207, and the slider 33 is slidably arranged in the slide groove 12 to realize the connection between the threaded block 322 in the regulating box 1 and the stop block 2 outside the regulating box 1, and then the stop block 2 is driven to move in relative or opposite directions through the two sliders 33. Among them, the slider 33 is slidably connected with the slide groove 205, and the slider 206 provided is used in conjunction with the slide groove 205 to play a limiting role and prevent rotation.

[0031] How to use the anti-retraction device:

[0032] First, the operator aligns the blocks 11 fixedly installed on both sides of the bottom of the adjusting box 1 with the slots 42 at the corresponding positions according to the actual situation to fix the adjusting box 1. Then, according to the width of the jacking head 5, the operator starts the driving motor 31 to drive the screw 321 to rotate. Since the two ends of the screw 321 are arranged in opposite directions, the two threaded blocks 322 will be displaced in relative or opposite directions, so that the two sliders 33 drive the stop blocks 2 to move in relative or opposite directions, thereby adjusting the spacing of the stop blocks 2, and the stop operation can be performed on the jacking heads 5 of different widths.

[0033] In summary, the bottom plate embedded anti-recognition device suitable for jacking pipes provided in the present embodiment plays a supporting and fixing role through the adjustment box; the two anti-recognition blocks are driven to move toward or away from each other through the driving component, and the spacing between the anti-recognition blocks can be adjusted so that the two anti-recognition blocks move away from each other to the two sides of the pipe section or the jacking machine head, so as to make way for the jack to press the pipe section or the jacking machine head, and after the pipe section or the jacking machine head is pressed into place and the jack retreats, the two anti-recognition blocks can move toward each other to between the pipe section and the jack, so as to limit the retreat of the pipe section or the jacking machine head, and at the same time, the anti-recognition operation can also be performed on jacking machine heads of different widths, which saves time and effort while reducing operating costs, and solves the problem that the joints on the existing jacking machine head are fixed to the bottom plate through anti-recognition rods, which is time-consuming, labor-intensive and prone to safety accidents.

[0034] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bottom plate embedded anti-retraction device suitable for jacking pipe, characterized in that: include: An adjustment box is used to be embedded in the support bottom plate and placed at a position to be stopped; Two stop blocks are protrudingly arranged on the top of the adjustment box, and each of the stop blocks is slidably connected to the adjustment box along the length direction of the adjustment box; A driving component, the power output end of which is respectively connected to the two stop blocks, is used to drive the two stop blocks to move toward or away from each other, so that the two stop blocks move away from each other to the two sides of the pipe section or the jacking machine head, so as to make way for the jack to press the pipe section or the jacking machine head, and after the pipe section or the jacking machine head is pressed into place and the jack retreats, the two stop blocks can move toward each other to between the pipe section and the jack, so as to limit the retreat of the pipe section or the jacking machine head.

2. The bottom plate embedded anti-retraction device suitable for jacking pipe according to claim 1, characterized in that: The drive assembly comprises: Drive motor; The transmission mechanism has a power input end connected to the power output end of the driving motor, and the power output end is respectively connected to the two stop blocks, for converting the rotation of the driving motor into the toward or away movement of the two stop blocks.

3. The bottom plate embedded type backstop device applicable to the top pipe according to claim 2, characterized in that: The transmission mechanism comprises: A screw rod is arranged inside the adjusting box along the length direction of the adjusting box, the screw rod is rotatably connected to the adjusting box, and the screw rod is connected to the power output end of the driving motor, the screw rod is provided with two thread sections arranged in opposite directions, and the screw rod is used to rotate synchronously with the driving motor; The two threaded blocks are respectively mounted on the two threaded sections of the screw rod, and the two threaded blocks are respectively matched with the two threaded sections, so as to drive the two threaded blocks to move toward or away from each other when the screw rod rotates, thereby driving the two stop blocks to move toward or away from each other.

4. The bottom plate embedded type backstop device applicable to the top pipe according to claim 3, characterized in that: A slide groove is provided on the top wall of the regulating box along its length direction, and two slidable sliders are provided in the slide groove. One end of the two sliders is respectively connected to the two threaded blocks, and the other end is respectively connected to the two stop blocks.

5. The bottom plate embedded type backstop device applicable to the top pipe according to claim 3, characterized in that: The end of the screw rod is rotatably connected to the wall plate of the regulating box through a bearing.

6. The bottom plate embedded type backstop device applicable to the top pipe according to claim 2, characterized in that: The driving motor is arranged outside the regulating box, the transmission mechanism is placed inside the regulating box, and the power output end of the driving motor can rotatably extend to the side wall penetrating the regulating box and extend to the inside of the regulating box.

7. The bottom plate embedded type backstop device applicable to the top pipe according to any one of claims 1 to 6, characterized in that: The adjustment box is provided with a clamping block for being detachably clamped in the clamping groove of the support base plate, so as to adjust the position of the adjustment box based on the position to be stopped.

8. The bottom plate embedded type backstop device applicable to the top pipe according to claim 7, characterized in that: The number of the card blocks is plural and they are arranged at intervals along the length direction of the adjustment box.

9. The bottom plate embedded type backstop device applicable to the top pipe according to claim 7, characterized in that: The clamping block is arranged on the bottom wall of the regulating box.

10. The bottom plate embedded type backstop device applicable to the top pipe according to any one of claims 1 to 6, characterized in that: The limiting pressing end of the stop block extends to one side of the adjustment box, and is used for pressing and contacting the end wall of the jacking machine head or the pipe section placed on one side of the adjustment box.

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