Plug plate structure

Abstract

The utility model provides a plug plate structure, and belongs to the technical field of tunnel construction equipment. The plug plate structure comprises a supporting plate, a plug plate and a lifting mechanism, the lifting mechanism comprises a driving execution end which is formed on the side facing an operator and can be disengaged from an external driving source, and by means of connection of the external driving source, automatic lifting and stretching of the plug plate structure can be achieved; the efficiency of tunnel secondary lining plugging construction is greatly improved; the lifting mechanism is provided with the lifting shell, so that the adverse effects of external dust and concrete on internal elements of the lifting mechanism are reduced, and the construction efficiency is improved while the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction equipment, and in particular relates to a plugging plate structure. Background Art

[0002] The plugging plate is an important construction tool used in the tunnel construction process. It is mainly used to close the openings at both ends of the formwork when pouring the secondary lining concrete of the tunnel (for example, closing the formwork between the formwork trolley and the surrounding rock) to ensure that the concrete does not leak from the end of the tunnel during the pouring process, while also ensuring the integrity and waterproof performance of the structure.

[0003] At present, there are many types of plugging plate structures used on construction sites. For example, Chinese patent ZL202220135880.3 discloses a tunnel secondary lining plugging telescopic device (essentially a plugging plate structure). When in use, the threaded rod is screwed to make the threaded rod rise and fall inside the threaded groove, and the plugging plate is lifted to make it rise and fall. In order to facilitate the adjustment of the lifting and lowering, the bottom of the threaded rod adopts a hexagonal prism structure; for another example, Chinese patent ZL202320054773.2 discloses a one-piece tunnel trolley plugging plate, which connects the plugging plate to the base through an adjustment mechanism. When in use, the four thumb rings located in the middle of the outer wall of the cylinder are screwed by fingers to adjust the height of the plugging plate; and so on. Although the above-mentioned plugging plate structure meets the construction requirements, there are still many problems, mainly reflected in: 1. The threaded rod is exposed to the outside, which can easily cause concrete, dust, etc. to stick to the surface of the threaded rod, making the threaded rod unable to be raised or lowered, affecting the construction progress; 2. In order to achieve lifting, a screwing structure is usually set at the bottom of the threaded rod or around its periphery (such as the hexagonal prism structure and the wrench used in the above two patent documents). Such a screwing structure is not easy to operate, and there are problems of unstable lifting and difficult disassembly in the later stage when rotating by manpower. Generally speaking, the current plugging plate structure has the problem of low construction efficiency.

[0004] In view of this, the prior art needs to be further improved. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a plugging plate structure, the purpose of which is to solve at least one of the above problems.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0007] A plugging plate structure, which includes a support plate, a plugging plate and a lifting mechanism arranged between the support plate and the plugging plate, wherein the plugging plate is slidably arranged above the support plate, and the lifting mechanism includes a lifting shell, a lifting rod at least partially formed in the lifting shell, and a driving execution end formed on the side facing the operator and capable of being disengaged from an external driving source, and the external driving source can drive the lifting rod to move up and down through the driving execution end when engaging with the driving execution end, thereby making the support plate and the plugging plate move away from or closer to each other.

[0008] A plugging plate structure, which includes a support plate, a plugging plate and a lifting mechanism arranged between the support plate and the plugging plate, wherein the plugging plate is slidably arranged above the support plate, and the lifting mechanism includes a lifting rod, and the lifting mechanism is formed with a driving execution end that can be disengaged from an external driving source on the side facing the operator. When the external driving source is engaged with the driving execution end, the external driving source can drive the driving execution end to move and then drive the lifting rod to lift and lower, so that the support plate and the plugging plate are moved away from or close to each other, and the driving execution end is located on the outside of the rod body of the solid shaft segment.

[0009] Compared with the prior art, the utility model has at least the following beneficial effects:

[0010] The utility model adopts a lifting mechanism with a special structure. On the one hand, a driving execution end is provided on the lifting shell on the side facing the operator, which facilitates the access of an external driving source such as an electric wrench. In this way, the support plate and the plugging plate can be moved away from or close to each other by means of the action of the external driving source, and the construction efficiency is greatly improved. In addition, due to the use of a lifting shell, the lifting transmission unit and the lifting rod of the transmission are at least partially accommodated in the lifting shell, which can reduce the risk of the threaded rod, the lifting transmission unit, etc. being exposed to the outside, reduce the adverse effects caused by concrete, dust, etc., improve construction efficiency, and reduce the number of maintenance times. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the plugging plate structure of the utility model;

[0013] Figure 2 yes Figure 1 The schematic diagram of the main structure of the plugging plate structure shown;

[0014] Figure 3 It is a schematic diagram of the exploded structure of the plugging plate structure of the utility model when the support plate and the plugging plate are separated;

[0015] Figure 4It is a three-dimensional structural schematic diagram of the plugging plate used in the utility model;

[0016] Figure 5 yes Figure 4 A schematic diagram of the side view of the plugging plate shown;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the support plate used in the utility model;

[0018] Figure 7 yes Figure 6 A partial enlarged view of the middle A area;

[0019] Figure 8 yes Figure 7 The three-dimensional structural diagram of the lifting mechanism shown is when the external cover is removed;

[0020] Fig. 9 It is a schematic diagram of the internal structure of the lifting transmission unit used in the utility model;

[0021] Among them, 1-support plate, 2-plug plate, 3-lifting mechanism, 4-driving execution end, 5-slide rail, 6-lifting head, 7-protection part, 8-bolt hole, 9-spacer, 10-lifting plate, 11-housing, 12-worm, 13-worm wheel, 14-guide rod, 15-lifting rod,

[0022] 101-support bottom plate, 102-support side plate, 103-rib plate, 104-guide column, 105-support lap groove, 106-slide groove, 107-support lap joint, 1201-rotating section,

[0023] 201-top plate, 202-fixing groove, 203-prying groove, 204-lap joint, 205-lap groove, 206-blocking side plate,

[0024] 301-external cover, 302-mounting frame, 3011-first cavity, 3012-second cavity. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0026] like Figures 1 to 9As shown, the utility model provides a plugging plate structure, which includes a support plate 1, a plugging plate 2 and a lifting mechanism 3 arranged between the support plate 1 and the plugging plate 2, wherein the plugging plate 2 is slidably arranged above the support plate 1, and the lifting mechanism 3 includes a lifting shell, a lifting rod 15 at least partially formed in the lifting shell, and a driving execution end 4 formed on the side facing the operator and capable of being disengaged from an external driving source, and the external driving source can drive the lifting rod 15 to rise and fall through the driving execution end 4 when engaging with the driving execution end 4, thereby making the support plate 1 and the plugging plate 2 move away from or closer to each other.

[0027] It should be noted that in the prior art, in order to achieve lifting, the plugging plate structure is usually equipped with a screwing structure at the bottom, top or around the periphery of the threaded rod. These methods are inconvenient to operate and rotation by manpower leads to unstable lifting and difficulty in disassembly in the later stage. In addition, the threaded rod of the existing plugging plate structure is exposed to the outside, which can easily cause concrete, dust, etc. to stick to the surface of the threaded rod, making the threaded rod unable to be lifted or lowered, resulting in low construction efficiency. The utility model provides a driving execution end 4 that can be disengaged from an external driving source on the lifting shell on the side facing the operator. In this way, construction personnel can directly connect the existing external driving source equipment such as an electric wrench to the driving execution end 4, and drive the driving execution end 4 to work through the external driving source equipment, thereby driving the lifting rod 15 to realize the support plate 1 and the plugging plate 2 to move away from or closer to each other. Compared with existing technicians, the degree of automation is higher, which can greatly improve the construction efficiency. In addition, since the lifting rod 15 and the like are at least partially formed in the lifting shell, under the protection of the lifting shell, the lifting transmission unit from the driving execution end 4 to the lifting rod 15 are all shielded and protected, thereby avoiding the adverse effects of external dust, concrete, etc., can reduce the maintenance times of the plugging plate structure and increase its service life.

[0028] In a preferred embodiment, a guide unit is further provided between the support plate 1 and the plug plate 2, which is used to guide the sliding movement of the two plates away from or towards each other. Exemplarily, the guide unit includes a slide rail 5 provided at the bottom of the plug plate 2 and a guide column 104 (which may also be a guide pin, etc.) provided on the support plate 1 and slidably matched with the slide rail 5. It is understandable that the provision of the slide rail 5 and the guide column 104 is only exemplary, and their provision positions can be interchanged. By providing the guide unit, it is possible to ensure that the support plate 1 and the plug plate 2 are lifted and lowered in a predetermined direction, and to ensure that the sliding process is smooth and reliable.

[0029] Further preferably, the guide units are provided in plurality, wherein at least one guide unit is provided with a limit bolt (or limit pin), the limit bolt (or limit pin) extending between the slide rail 5 and the guide column 104, and the limit bolt (or limit pin) is fixedly connected to one of the slide rail 5 and the guide column 104, and slidably cooperates with the other of the slide rail 5 and the guide column 104, so as to limit the lifting of the support plate 1 and the plugging plate 2 within a predetermined range, and avoid the plugging plate 2 from being separated from the support plate 1 during the lifting process of the lifting rod 15. For example, Figures 2 to 6 As shown, a bolt hole 8 is provided at the slide rail 5 for fixing a limit bolt, and a slide groove 106 is provided at the corresponding guide column 104. The limit bolt extends from the bolt hole 8 to the slide groove 106 (not shown in the figure), which is used to limit the plug plate 2 when they are moving away from or approaching each other, so as to prevent it from separating from the support plate 1.

[0030] like Figure 2 and Figure 6 As shown, this embodiment provides a preferred setting mode of the support plate 1, wherein the support plate 1 comprises a support bottom plate 101 and a support side plate 102, wherein the support side plate 102 is fixedly arranged above the support bottom plate 101 on the side away from the operator (the side close to the concrete during construction), and a support overlap groove 105 is arranged at one end (e.g., the left end) of the support side plate 102, and a support overlap joint 107 is arranged at the other end (e.g., the right end) away from the support overlap groove 105. By arranging the support overlap groove 105 and the support overlap joint 107, it is possible to facilitate the overlap between adjacent support plates 1 when assembling adjacent plugging plate structures.

[0031] like Figures 4 to 5 As shown, corresponding to the support plate 1, this embodiment provides a preferred setting mode of the plugging plate 2, wherein the plugging plate 2 includes a top plate 201 and a blocking side plate 206, wherein the blocking side plate 206 is fixedly arranged at the bottom of the top plate 201 on the side away from the operator (the side close to the concrete during construction), and a lap joint 204 is arranged at one end (e.g., the left end) of the blocking side plate 206, and a lap groove 205 is arranged at the end (e.g., the right end) away from the lap joint 204. The setting of the lap joint 204 and the lap groove 205 can facilitate the lap joint between adjacent plugging plates 2 when assembling adjacent plugging plate structures.

[0032] Further preferably, the support plate 1 also includes a guide column 104 arranged above the support bottom plate 101, and the plugging plate 2 also includes a slide rail 5 arranged on the bottom surface of the top plate 201 and slidably matched with the guide column 104, and there is a gap 9 between the slide rail 5 and the blocking side plate 206, and the gap 9 is used to accommodate the support side plate 102 of the support plate 1 when the plugging plate 2 and the support plate 1 are slidingly matched. It should be understood that the above setting is only a preferred setting method and should not be understood as a limitation of the present utility model. The gap 9 can also be set on the support plate 1, which also does not deviate from the protection scope of the present utility model. Further preferably, the guide column 104 is also fixedly set on the support side plate 102 (see Figure 6 ), the supporting bottom plate 101 and the supporting side plate 102 are also connected by a rib plate 103.

[0033] Preferably, a fixing groove 202 is further provided on the top surface of the top plate 201, which is used to cooperate with other structures on the top, such as composite pads, so as to seal the top of the tunnel. Furthermore, a prying groove 203 is also provided on the top surface of the top plate 201 near the operator, so as to facilitate the removal of the plugging plate structure using a pry bar after the construction is completed. It is understandable that a structure similar to the prying groove 203 can also be provided on the bottom of the supporting bottom plate 101.

[0034] Preferably, the lifting mechanism 3 is fixedly arranged on one of the support plate 1 and the plugging plate 2, and the lifting rod 15 of the lifting mechanism 3 at least partially extends outside the lifting shell and presses against the other of the support plate 1 and the plugging plate 2 during lifting. Further preferably, the lifting rod 15 is in press contact with the other of the support plate 1 and the plugging plate 2 through the lifting head 6. Further preferably, the lifting head 6 is in press contact with the other of the support plate 1 and the plugging plate 2 through the arc contact surface. In on-site construction, each plugging plate structure used usually includes a plurality of lifting mechanisms 3, and the lifting stroke of each lifting mechanism 3 can be different. If the lifting rod 15 is connected to the other of the support plate 1 and the plugging plate 2 through the lifting head 6, it will easily cause the generation of internal stress due to the different lifting strokes during the lifting process, and even cause the collapse of the plugging plate structure in severe cases. By adopting the contact form of the arc contact surface, even if there are different lifting strokes and the pressing position is misaligned, internal stress will not be generated, resulting in adverse effects. Of course, the above content is only a preferred embodiment of the present invention, and does not exclude the situation of connecting the lifting rod 15 to another one of the above. It should be understood that the situation of connecting the lifting rod 15 to another one of the above also belongs to the protection scope of the present invention.

[0035] In a preferred embodiment, a protective portion 7, such as a downward boss, is formed on the bottom surface of the top plate 201 for contacting the lifting head 6 of the lifting rod 15. The protective portion 7 is provided to protect the tightening position on the top plate 201 to prevent the top plate 201 from being squeezed and damaged during the tightening process. Preferably, a recessed portion is also formed on the protective portion 7 and is arranged opposite to the lifting head 6, which is used to guide and limit the extended lifting head 6. Further preferably, the recessed portion is an arc-shaped recessed portion adapted to the lifting head 6 of the arc-shaped contact surface.

[0036] In a preferred embodiment, the lifting shell includes a mounting frame 302, which is fixedly arranged on one of the support plate 1 and the plug plate 2. The mounting frame 302 is formed with a first cavity 3011 and a second cavity 3012 arranged along the lifting direction. The first cavity 3011 is arranged close to one side of the one of the two. The driving execution end 4 is connected to the lifting rod 15 through a lifting transmission unit, and the lifting transmission unit is arranged in the second cavity 3012. Preferably, the lifting rod 15 is at least partially accommodated in the first cavity 3011 (see Figure 8 ). In some preferred embodiments, the first cavity 3011 can be replaced by a closed entity, and only a passage for accommodating the lifting rod 15 and the like for lifting and lowering can be provided. The above arrangement can ensure, on the one hand, that there is sufficient lifting travel between the lower support plate 1 and the plugging plate 2 of the lifting rod 15, and on the other hand, shield and protect the lifting rod 15 and the like, thereby reducing the adverse effects of external concrete, dust, and the like.

[0037] In a preferred embodiment, the lifting transmission unit includes a worm 12 and a worm wheel 13, wherein one end of the worm 12 is fixedly connected to the driving execution end 4 (preferably an integrated arrangement), the worm 12 and the worm wheel 13 are in transmission cooperation, the lifting rod 15 is a threaded screw, and the worm wheel 13 is rotatably sleeved on the lifting rod 15 through its middle. By adopting the above arrangement, when an external driving source (such as an electric wrench, etc.) is engaged with the driving execution end 4, it can drive the worm 12 to rotate through the driving execution end 4, and then drive the worm wheel 13 to rotate, and the lifting and lowering adjustment of the lifting rod 15 is realized when the worm wheel 13 rotates.

[0038] Further preferably, the lifting transmission unit further comprises a housing 11, the worm 12 and the worm wheel 13 are arranged in the housing 11, and the lifting transmission unit is installed in the second cavity 3012 through the housing 11. The arrangement of the housing 11, on the one hand, can facilitate the installation of structures such as the worm wheel 13 and the worm 12, which can be assembled in advance and then installed in the narrow cavity of the second cavity 3012, and on the other hand, it plays a role in shielding external dust and the like, thereby increasing its service life.

[0039] Furthermore, the lifting rod 15 is arranged to penetrate the housing 11, and a lifting plate 10 is fixedly arranged at one end of the lifting rod 15 close to the lifting head 6, and a guide rod 14 parallel to the axis of the lifting rod 15 is fixedly arranged on the lifting plate 10. The guide rod 14 is mainly arranged to improve the transmission stability of the lifting rod 15 during the lifting process.

[0040] In a further preferred embodiment, the guide rods 14 are distributed on both sides of the lifting rod 15, and the projections of the axes of the two guide rods 14 and the lifting rod 15 on a vertical plane (for example, a plane perpendicular to the axis of the lifting rod 15) form three points, and the line connecting the three points is a triangle, preferably an isosceles triangle. Since the triangle has strong stability, by adopting the guide rods 14 and the lifting rod 15 in the above arrangement, the overall structure has higher stability, which can avoid skewing during transmission and lifting, thereby affecting the telescopic effect of the plugging plate structure.

[0041] Preferably, rotating sections 1201 for rotationally cooperating with the housing 11 are formed at both ends of the worm 12 , and the driving execution end 4 is located at one end of one of the rotating sections 1201 away from the worm 12 and outside the housing 11 .

[0042] In a preferred embodiment, the lifting shell further comprises an external cover 301, which at least partially covers the mounting frame 302 to form a closed protection for the lifting transmission unit etc. inside the lifting shell. The setting of the external cover 301 also ensures the beauty of the lifting mechanism 3.

[0043] It should also be understood that since the lifting rod 15 adopts a lifting transmission unit in the form of a worm gear, Figures 7 to 9 It can be known that the driving execution end 4 should always be located outside the rod body of the physical shaft section of the lifting rod 15, and not located at the upper and lower ends of the lifting rod 15. Therefore, one of the schemes of the utility model can also be:

[0044] A plugging plate structure, comprising a support plate 1, a plugging plate 2 and a lifting mechanism 3 arranged between the support plate 1 and the plugging plate 2, wherein the plugging plate 2 is slidably arranged above the support plate 1, and the lifting mechanism 3 comprises a lifting rod 15, and the lifting mechanism 3 is formed with a driving execution end 4 that can be disengaged from an external driving source on the side facing the operator, and when the external driving source is engaged with the driving execution end 4, the external driving source can drive the driving execution end 4 to move and then drive the lifting rod 15 to lift and lower, so that the support plate 1 and the plugging plate 2 are away from or close to each other, and the driving execution end 4 is located outside the rod body of the physical shaft section of the lifting rod 15. It should also be understood that all the technical solutions and preferred embodiments in the foregoing should be applicable to this technical solution.

[0045] Finally, it should be noted that in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plugging plate structure, comprising a support plate (1), a plugging plate (2) and a lifting mechanism (3) arranged between the support plate (1) and the plugging plate (2), wherein the plugging plate (2) is slidably arranged above the support plate (1), characterized in that: The lifting mechanism (3) comprises a lifting shell, a lifting rod (15) at least partially formed in the lifting shell, and a driving execution end (4) formed on a side facing the operator and capable of being disengaged from an external driving source. When the external driving source is engaged with the driving execution end (4), the lifting rod (15) can be driven to move up and down through the driving execution end (4), thereby causing the support plate (1) and the plug plate (2) to move away from or closer to each other.

2. A plugging plate structure as claimed in claim 1, characterized in that: A guide unit is also provided between the support plate (1) and the plug plate (2), which is used to guide the two plates to slide away from or approach each other.

3. A plugging plate structure as claimed in claim 1, characterized in that: The lifting mechanism (3) is mounted on one of the support plate (1) and the plug plate (2); the lifting rod (15) of the lifting mechanism (3) at least partially extends outside the lifting shell and presses against the other of the support plate (1) and the plug plate (2) during lifting.

4. A plugging plate structure as claimed in claim 3, characterized in that: The lifting rod (15) has a lifting head (6), and the lifting rod (15) is in tight contact with the other of the support plate (1) and the plug plate (2) through the arc-shaped contact surface of the lifting head (6).

5. A plugging plate structure according to any one of claims 1 to 4, characterized in that: The lifting housing comprises a mounting frame (302), the mounting frame (302) being mounted on one of the support plate (1) and the plug plate (2), the mounting frame (302) being provided with a cavity for accommodating a lifting transmission unit, and the driving execution end (4) being transmission-connected to the lifting rod (15) via the lifting transmission unit.

6. A plugging plate structure as claimed in claim 5, characterized in that: The mounting frame (302) is also formed with another cavity or channel for accommodating the lifting rod (15).

7. A plugging plate structure as claimed in claim 5, characterized in that: The lifting transmission unit comprises a worm (12) and a worm wheel (13), wherein one end of the worm (12) is fixedly connected to the driving execution end (4), the worm (12) and the worm wheel (13) are matched in transmission, the lifting rod (15) is a threaded screw, and the worm wheel (13) is rotatably sleeved on the lifting rod (15) through its middle.

8. A plugging plate structure as claimed in claim 7, characterized in that: The lifting transmission unit further comprises a housing (11), the worm (12) and the worm wheel (13) are arranged in the housing (11), and the lifting transmission unit is installed in the cavity through the housing (11).

9. A plugging plate structure as claimed in claim 5, characterized in that: The lifting shell further comprises an external cover (301), wherein the external cover (301) at least partially covers the mounting frame (302).

10. A plugging plate structure, comprising a support plate (1), a plugging plate (2) and a lifting mechanism (3) arranged between the support plate (1) and the plugging plate (2), wherein the plugging plate (2) is slidably arranged above the support plate (1), characterized in that: The lifting mechanism (3) comprises a lifting rod (15). The lifting mechanism (3) is provided with a driving execution end (4) which can be disengaged from an external driving source on a side facing an operator. When the external driving source is engaged with the driving execution end (4), the external driving source can drive the driving execution end (4) to move and thereby drive the lifting rod (15) to move, so that the support plate (1) and the plug plate (2) move away from or closer to each other. The driving execution end (4) is located outside the rod body of the physical shaft section of the lifting rod (15).

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