Formwork supporting structure and lining trolley

Abstract

The utility model relates to the technical field of engineering machinery, and provides a formwork supporting structure and a lining trolley. The formwork supporting structure comprises a first supporting assembly, a second supporting assembly and a third supporting assembly, one end of the first supporting assembly abuts against the third supporting assembly, and the other end of the first supporting assembly is used for being connected with a side formwork. One end of the second supporting assembly abuts against the third supporting assembly, and the other end is used for being connected with a side die. The third supporting assembly comprises an abutting face, and the abutting face is used for abutting against the foundation ditch. According to the formwork supporting structure, the third supporting assembly is arranged between the first supporting assembly and the foundation ditch and between the second supporting assembly and the foundation ditch, and the abutting face is arranged in the third supporting assembly, so that the stress transmission area between the first supporting assembly and the foundation ditch and between the second supporting assembly and the foundation ditch can be indirectly increased; stress concentration can be reduced, damage to the foundation ditch caused by the stress concentration can be effectively relieved, and the probability of formwork shifting of the side formwork can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a formwork support structure and a lining trolley. Background Art

[0002] A tunnel lining trolley is a special equipment that must be used in the secondary lining during the tunnel construction process for the concrete lining construction of the tunnel inner wall. During the construction, the side formwork of the lining trolley needs to be supported; the quality of the support effect is directly related to the pouring quality.

[0003] The prior art provides a support device, including a vertical support member and an inclined support member. The vertical support member and the inclined support member are arranged between the side formwork and the foundation. However, the contact stress between the vertical support member and the inclined support member and the foundation is relatively large, which will cause greater damage to the foundation. In addition, the stability of the vertical support member and the inclined support member is relatively poor, which is likely to lead to problems such as formwork displacement of the side formwork. Summary of the Utility Model

[0004] In the first aspect of the utility model, a formwork support structure is provided to solve the defects of the vertical support member and the inclined support member in the prior art. By arranging a third support component between the first support component and the second support component in the foundation ditch and providing a contact surface in the third support component, in this way, the stress transfer area between the first support component and the second support component and the foundation ditch can be indirectly increased, stress concentration can be reduced, and the damage to the foundation ditch caused by stress concentration can be effectively alleviated, and the probability of formwork displacement of the side formwork can be reduced.

[0005] In the second aspect of the utility model, a lining trolley is provided.

[0006] The formwork support structure provided by the utility model includes a first support component, a second support component and a third support component. One end of the first support component abuts against the third support component, and the other end is used for connecting with the side formwork; one end of the second support component abuts against the third support component, and the other end is used for connecting with the side formwork; the third support component includes a contact surface for abutting against the foundation ditch.

[0007] According to the formwork support structure provided by the utility model, the third support component includes a first support member, a second support member and a third support member. The first support component and the second support component respectively abut against corresponding positions of the first support member;

[0008] The second support member and the third support member are respectively connected to corresponding positions of the first support member. The surface of the second support member away from the third support member and the surface of the third support member away from the second support member are used to form the contact surface.

[0009] According to the formwork support structure provided by the present utility model, one end of the third support member away from the first support member is connected to the second support member, and the first support member, the second support member, and the third support member enclose a triangular support structure, and the shape of the triangular support structure matches the shape of the foundation ditch.

[0010] According to the formwork support structure provided by the present utility model, the first support member includes a support portion and a limiting portion, the first support assembly abuts against the support portion, and the support portion is used for connecting with the second support member and the third support member;

[0011] The limiting portion protrudes from the upper surface of the support portion, and the second support assembly abuts against the limiting portion.

[0012] According to the formwork support structure provided by the present utility model, the first support member further includes a reinforcing rod, one end of the reinforcing rod is connected to the support portion, and the other end is connected to the limiting portion. The reinforcing rod is obliquely arranged and is located on one side of the limiting portion away from the second support assembly.

[0013] According to the formwork support structure provided by the present utility model, the first support member further includes a limiting hole, and the limiting hole penetrates through the support portion and the limiting portion;

[0014] The third support assembly further includes a limiting column adapted to the limiting hole. The limiting column penetrates through the limiting hole and is fixed to the foundation.

[0015] According to the formwork support structure provided by the present utility model, the second support assembly includes a first telescopic rod, a second telescopic rod, and an abutting member. One end of the first telescopic rod is connected to the second telescopic rod, and the other end is used for connecting with the side form. The abutting member is arranged at one end of the second telescopic rod away from the first telescopic rod, and the abutting member is provided with a clamping groove for abutting against the limiting portion.

[0016] According to the formwork support structure provided by the present utility model, one end of the first telescopic rod away from the second telescopic rod is provided with a rotating portion for rotatably connecting with the side form.

[0017] According to the formwork support structure provided by the present utility model, the first telescopic rod includes a first sleeve and a first screw rod, the second telescopic rod includes a second sleeve and a second screw rod. One end of the first sleeve is connected to the second sleeve, and the other end is sleeved on the first screw rod and is in threaded cooperation with the first screw rod. One end of the first screw rod away from the first sleeve is used for connecting with the side form. One end of the second sleeve away from the first sleeve is sleeved on the second screw rod and is in threaded cooperation with the second screw rod. The abutting member is arranged at one end of the second screw rod away from the second sleeve.

[0018] The lining trolley provided by the utility model comprises a top formwork, side formworks and the formwork support structure described in any one of the foregoing items. The side formworks are symmetrically arranged on both sides of the top formwork. One end of the formwork support structure is connected to the side formwork, and the other end is used for abutting against a foundation ditch.

[0019] A foundation ditch is arranged at a position of the foundation adjacent to the tunnel side wall. The foundation ditch generally has an inverted triangular structure. In the prior art, the support structure generally directly abuts against the inside of the foundation ditch, which will damage the surface of the foundation ditch, and in severe cases, it will endanger the structure of the foundation itself. It can be understood that for the formwork support structure provided by the utility model, by arranging a third support component between the first support component and the second support component and the foundation ditch, and arranging an abutting surface in the third support component, in this way, the stress transmission area between the first support component and the second support component and the foundation ditch can be indirectly increased. In this way, during the stress transmission process, the stress can be evenly dispersed on the abutting surface of the third support component, the stress concentration can be reduced, and the damage caused by the stress concentration to the foundation ditch can be effectively alleviated. In addition, the surface contact between the third support component and the foundation ditch is larger than the contact area of the vertical support member and the inclined support member in the prior art, which can make the stability of the third support component better, and further make the stability of the first support component and the second support component better, and can reduce the probability of the side formwork running out of the formwork. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the formwork support structure provided by an embodiment of the present utility model.

[0022] Reference Signs:

[0023] 100: First support component; 200: Second support component; 210: First telescopic rod; 211: Rotating part; 212: First sleeve; 213: First lead screw; 220: Second telescopic rod; 221: Second sleeve; 222: Second lead screw; 230: Abutting member; 231: Card slot; 300: Third support component; 310: First support member; 311: Support part; 312: Limiting part; 313: Reinforcing rod; 314: Limiting hole; 320: Second support member; 330: Third support member; 340: Limiting column. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Apparently, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0026] In the embodiments of the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0027] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0028] One aspect of the present utility model provides a lining trolley for the secondary lining during tunnel construction. The lining trolley includes a top formwork, side formworks, and a formwork support structure. The side formworks are symmetrically arranged on both sides of the top formwork. The formwork of the side formwork is provided with grouting holes through which the pouring pipeline can pass to achieve pouring. The specific structure of the lining trolley can be adaptively designed with reference to the prior art. The following will elaborate on the formwork support structure therein.

[0029] Figure 1 It is a schematic structural diagram of the formwork support structure provided by an embodiment of the present utility model.

[0030] Referring to Figure 1 Another aspect of the embodiment of the present utility model provides a formwork support structure. The formwork support structure includes a first support assembly 100, a second support assembly 200, and a third support assembly 300. One end of the first support assembly 100 abuts against the third support assembly 300, and the other end is used to connect with the side formwork; one end of the second support assembly 200 abuts against the third support assembly 300, and the other end is used to connect with the side formwork; the third support assembly 300 includes an abutting surface for abutting against the foundation ditch.

[0031] A foundation ditch is provided at a position where the foundation is adjacent to the tunnel sidewall. The foundation ditch generally has an inverted triangular structure. The support structures in the prior art generally directly abut against the inside of the foundation ditch, which will damage the surface of the foundation ditch, and in severe cases, it will endanger the structure of the foundation itself. It can be understood that for the formwork support structure provided by the embodiment of the present utility model, by arranging the third support assembly 300 between the first support assembly 100 and the second support assembly 200 and the foundation ditch, and providing an abutting surface in the third support assembly 300, in this way, the stress transfer area between the first support assembly and the second support assembly 200 and the foundation ditch can be indirectly increased. In this way, during the stress transfer process, the stress can be evenly distributed on the abutting surface of the third support assembly 300, stress concentration can be reduced, and the damage caused by stress concentration to the foundation ditch can be effectively alleviated. In addition, the surface contact between the third support assembly 300 and the foundation ditch is larger than the contact area of the vertical support member and the inclined support member in the prior art, which can make the stability of the third support assembly 300 better, and further make the stability of the first support assembly 100 and the second support assembly 200 better, and the probability of the side formwork running out of form can be reduced.

[0032] Continue to refer to Figure 1, in an alternative embodiment of the present utility model, the third support assembly 300 includes a first support member 310, a second support member 320, and a third support member 330. The first support assembly 100 and the second support assembly 200 respectively abut against corresponding positions of the first support member 310. The second support member 320 and the third support member 330 are respectively connected to the first support member 310 and are located below the first support member 310. Among them, the first support member 310 is horizontally arranged, the second support member 320 is obliquely arranged, and the third support member 330 is vertically arranged to be adapted to the inverted triangular structure of the foundation ditch.

[0033] The surface of the second support member 320 away from the third support member 330 and the surface of the third support member 330 away from the second support member 320 are used to form an abutting surface. It can be understood that by providing the first support member 310, the second support member 320, and the third support member 330, in this way, the third support member 330 and the second support member 320 can respectively abut against different side walls of the foundation ditch, which can increase the abutting area between the third support assembly 300 and the foundation ditch, that is, it can increase the stress transfer area between the third support assembly 300 and the foundation ditch. In other words, it can make the load-bearing capacity of the third support assembly 300 better, which is beneficial to improving the load-bearing capacity and stability of the formwork support assembly.

[0034] Continue to refer to Figure 1 , in an alternative embodiment of the present utility model, one end of the third support member 330 away from the first support member 310 is connected to the second support member 320. The first support member 310, the second support member 320, and the third support member 330 enclose a triangular support structure, and the shape of the triangular support structure matches the shape of the foundation ditch. It can be understood that the triangular support structure has better stability, which can further improve the structural strength and stability of the third support assembly 300, that is, improve the structural strength and stability of the formwork support structure, and can allow the formwork support structure to bear a greater load.

[0035] Continue to refer to Figure 1 , in an alternative embodiment of the present utility model, the first support member 310 includes a support portion 311 and a limiting portion 312. The first assembly abuts against the support portion 311, and the bottom of the support portion 311 is used to be connected to the second support member 320 and the first support member 310. The limiting portion 312 protrudes from the upper surface of the support portion 311, and the second support assembly 200 abuts against the limiting portion 312.

[0036] The limiting portion 312 and the support portion 311 can be an integral structure. For example, the first support member 310 is obtained by injection molding or casting. The limiting portion 312 and the support portion 311 can also be independent components, and they are fixedly connected. The way of fixed connection can be welding, bonding, or threaded connection, etc. Refer to Figure 1, it can be understood that by setting the limiting part 312, in this way, the second support assembly 200 can be inclined, which can make the setting method of the second support assembly 200 more flexible and the functionality of the formwork support structure better.

[0037] Continue to refer to Figure 1 , in an alternative embodiment of the present invention, the first support member 310 further includes a reinforcing rod 313. One end of the reinforcing rod 313 is connected to the support portion 311, and the other end is connected to the limiting portion 312. The reinforcing rod 313 is inclined and is located on the side of the limiting portion 312 away from the second support assembly 200. It can be understood that the reinforcing rod 313, the support portion 311, and the limiting portion 312 can enclose a triangular structure, which can improve the strength of the limiting portion 312, is beneficial to improving the structural stability between the second support assembly 200 and the limiting portion 312, and the reinforcing rod 313 is easy to obtain and manufacture, and can reduce the stability of the formwork support structure on the premise of ensuring the strength of the limiting portion 312.

[0038] Continue to refer to Figure 1 , in an alternative embodiment of the present invention, the first support member 310 further includes a limiting hole 314, and the limiting hole 314 penetrates through the support portion 311 and the limiting portion 312; the third support assembly 300 further includes a limiting post 340 adapted to the limiting hole 314, and the limiting post 340 penetrates through the limiting hole 314 and is fixed to the foundation. The limiting post 340 can adopt existing structures such as steel bars. Taking steel bars as an example, the steel bars can be inserted at corresponding positions while pouring the foundation. After the foundation cools and solidifies, the steel bars can form an integral body with the foundation.

[0039] Of course, the fixing method of the limiting post 340 can also be threaded connection or clamping, etc. Specifically, it can be adaptively selected according to the actual situation. It can be understood that by setting the limiting hole 314 and the limiting post 340 matching the limiting hole 314, the stress transmission method between the third support assembly 300 and the foundation can be increased, and the stability of the third support assembly 300 can be better; in addition, the combination method between the limiting post 340 and the limiting hole 314 is easy to disassemble and separate, which can improve the flexibility of the formwork support assembly.

[0040] Continue to refer to Figure 1 , in an alternative embodiment of the present invention, the second support assembly 200 includes a first telescopic rod 210, a second telescopic rod 220, and an abutting member 230. One end of the first telescopic rod 210 is connected to the second telescopic rod 220, and the other end is used for connecting to the side form. The abutting member 230 is arranged at the end of the second telescopic rod 220 away from the first telescopic rod 210, and the abutting member 230 is provided with a clamping groove 231 for abutting against the limiting portion 312.

[0041] The second telescopic rod 220 and the first telescopic rod 210 can be riveted or welded; it can be understood that by setting the first telescopic rod 210 and the second telescopic rod 220, the length of the second support assembly 200 can be made variable, which can make the second support assembly 200 more flexible and can enable it to meet more working conditions; in addition, by providing a card slot 231 on the abutting member 230, in use, the card slot 231 can be clamped outside the limiting portion 312. On the one hand, it is beneficial to the stress transmission between the abutting member 230 and the limiting portion 312, and on the other hand, it can improve the stability of the second support assembly 200 and prevent the structure of the second support assembly 200 from failing when abutting against the limiting portion 312.

[0042] Continue to refer to Figure 1 , in an alternative embodiment of the present invention, a rotating portion 211 is provided at one end of the first telescopic rod 210 away from the second telescopic rod 220, and the rotating portion 211 is used for rotatably connecting with the side formwork. It can be understood that by providing the rotating portion 211, in this way, the second support assembly 200 can adjust the angle according to the actual situation during use. Based on the cooperation of the aforementioned limiting portion 312, while ensuring the stability of the second support assembly 200, the flexibility of the second support assembly 200 can be made higher, and the second support assembly 200 can meet more complex working conditions.

[0043] Continue to refer to Figure 1 , in an alternative embodiment of the present invention, the first telescopic rod 210 includes a first sleeve 212 and a first lead screw 213, the second telescopic rod 220 includes a second sleeve 221 and a second lead screw 222. One end of the first sleeve 212 is connected to the second sleeve 221, and the other end is sleeved on the first lead screw 213 and is in threaded cooperation with the first lead screw 213. The end of the first lead screw 213 away from the first sleeve 212 is used for connecting with the side formwork. The end of the second sleeve 221 away from the first sleeve 212 is sleeved on the second lead screw 222 and is in threaded cooperation with the second lead screw 222. The abutting member 230 is provided at the end of the second lead screw 222 away from the second sleeve 221. It can be understood that the lead screw drive method has good stability and strong load capacity, and can ensure the stability of the second support assembly 200 during the telescopic process while meeting the load requirements of the second support assembly 200.

[0044] In an alternative embodiment of the present invention, the third support assembly 300 can be made of I-beam. It can be understood that the I-beam has high strength and low cost, and can effectively reduce the manufacturing cost of the formwork support structure.

[0045] It should be noted that the technical solutions in the various embodiments of the present utility model can be combined with each other, but the basis for the combination is that those skilled in the art can implement it; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist, that is, it does not fall within the protection scope of the present utility model either.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A formwork support structure, characterized in that, It includes a first support component (100), a second support component (200) and a third support component (300). One end of the first support component (100) abuts against the third support component (300), and the other end is for connecting with the side formwork; One end of the second support component (200) abuts against the third support component (300), and the other end is for connecting with the side formwork; The third support component (300) includes an abutting surface which is for abutting against the foundation ditch.

2. The template support structure according to claim 1, characterized in that, The third support component (300) includes a first support member (310), a second support member (320) and a third support member (330). The first support component (100) and the second support component (200) respectively abut against corresponding positions of the first support member (310); The second support member (320) and the third support member (330) are respectively connected to corresponding positions of the first support member (310). The surface of the second support member (320) away from the third support member (330) and the surface of the third support member (330) away from the second support member (320) are for forming the abutting surface.

3. The template support structure according to claim 2, characterized in that, One end of the third support member (330) away from the first support member (310) is connected to the second support member (320). The first support member (310), the second support member (320) and the third support member (330) enclose a triangular support structure, and the shape of the triangular support structure matches the shape of the foundation ditch.

4. The template support structure according to claim 2, characterized in that, The first support member (310) includes a support portion (311) and a limiting portion (312). The first support component (100) abuts against the support portion (311), and the support portion (311) is for connecting with the second support member (320) and the third support member (330); The limiting portion (312) protrudes from the upper surface of the support portion (311), and the second support component (200) abuts against the limiting portion (312).

5. The template support structure according to claim 4, characterized in that, The first support member (310) further includes a reinforcing rod (313). One end of the reinforcing rod (313) is connected to the support portion (311), and the other end is connected to the limiting portion (312). The reinforcing rod (313) is inclined and is located on the side of the limiting portion (312) away from the second support component (200).

6. The template support structure according to claim 4, wherein The first support member (310) further includes a limiting hole (314) which penetrates through the support portion (311) and the limiting portion (312); The third support component (300) further includes a limiting column (340) adapted to the limiting hole (314). The limiting column (340) penetrates through the limiting hole (314) and is fixed to the foundation.

7. The template support structure according to claim 4, characterized in that The second support assembly (200) includes a first telescopic rod (210), a second telescopic rod (220), and an abutting member (230). One end of the first telescopic rod (210) is connected to the second telescopic rod (220), and the other end is for connecting to the side form. The abutting member (230) is arranged at the end of the second telescopic rod (220) away from the first telescopic rod (210). The abutting member (230) is provided with a card slot (231), and the card slot (231) is for abutting against the limiting portion (312).

8. The template support structure according to claim 7, characterized in that A rotating portion (211) is provided at the end of the first telescopic rod (210) away from the second telescopic rod (220), and the rotating portion (211) is for rotatably connecting to the side form.

9. The template support structure according to claim 7, characterized in that The first telescopic rod (210) includes a first sleeve (212) and a first screw rod (213). The second telescopic rod (220) includes a second sleeve (221) and a second screw rod (222). One end of the first sleeve (212) is connected to the second sleeve (221), and the other end is sleeved on the first screw rod (213) and is in threaded cooperation with the first screw rod (213). The end of the first screw rod (213) away from the first sleeve (212) is for connecting to the side form. The end of the second sleeve (221) away from the first sleeve (212) is sleeved on the second screw rod (222) and is in threaded cooperation with the second screw rod (222). The abutting member (230) is arranged at the end of the second screw rod (222) away from the second sleeve (221).

10. A lining trolley, characterized in that, It includes a top form, a side form, and the formwork support structure according to any one of claims 1 to 9. The side forms are symmetrically arranged on both sides of the top form. One end of the formwork support structure is connected to the side form, and the other end is for abutting against the foundation ditch.

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