Fastening device for wood formwork rear secondary rib

Abstract

The utility model discloses a fastening device for secondary ribs of a wood formwork, which belongs to the technical field of formwork reinforcement and comprises an L-shaped rod and a right-angle limiting plate sleeved on the L-shaped rod and matched with the L-shaped rod to be clamped on two adjacent secondary ribs. A locking nut is arranged on the L-shaped rod and located on one side of the right-angle limiting plate, a channel matched with the L-shaped rod is formed in the plate face of one side of the right-angle limiting plate, and one end of the L-shaped rod penetrates through the channel of the right-angle limiting plate and is in threaded connection with the locking nut. The fastening device can effectively clamp the secondary rib behind the formwork, local reinforcement of the secondary rib behind the formwork is achieved, the effects of clamping the secondary rib and tightening the abutted seam of the formwork are achieved, the structure is simple, installation is convenient and fast, meanwhile, the construction quality can be effectively improved, and it is guaranteed that construction operation is conducted smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of template reinforcement, and in particular relates to a fastening device for rear secondary ribs of a wooden template. Background Art

[0002] In the construction industry, wooden formwork is widely used in the construction process of concrete structures to form specific shapes and sizes after concrete pouring. Wooden formwork is composed of multiple wooden boards, which are connected and fixed together by bolts, fasteners, etc. to maintain the stability of its structure and shape. During the concrete pouring process, the quality of the formwork joints has an important impact on the quality and appearance of the concrete structure.

[0003] However, there are some problems with the existing wood formwork joint reinforcement technology, especially the plywood formwork, which is commonly used as a formwork for plain concrete surfaces, such as Figure 1 As shown, a 15mm thick plywood is used for the template, square wood is used as the rear secondary rib 1, and double steel pipes are used as the main ribs. During on-site construction, the panels need to be dismantled and spliced ​​according to the shape of the structure. The construction of the joint is an important link. In the rear secondary rib of the wooden template, due to its special structure, the joint between two adjacent rear secondary ribs is easy to become a weak link in the reinforcement. If the reinforcement is not in place, the template joint may be misaligned, that is, the joint is uneven, which will cause gaps and leakage after concrete pouring, affecting the overall quality and appearance of the structure. In order to solve the above problems, the method of directly reinforcing the secondary ribs with the main ribs is usually adopted, but it is difficult to fully reinforce the template joints with the main ribs. In addition, it can also be reinforced by using double wood or sticking wooden strips outside the joints, but the reinforcement effect is not ideal and the process is relatively complicated.

[0004] Therefore, a fastening device for the rear secondary rib of a wooden formwork is now needed, which can effectively clamp the rear secondary rib of the formwork to ensure the tightness of the formwork joint. Utility Model Content

[0005] The purpose of the utility model is to provide a fastening device for the rear secondary ribs of wooden formwork, which can effectively clamp the rear secondary ribs of the formwork, realize local reinforcement of the rear secondary ribs of the formwork, achieve the effect of clamping the secondary ribs and tightening the formwork joints, has a simple structure and is easy to install, and can effectively improve the construction quality and ensure smooth construction operations.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A fastening device for the rear secondary ribs of a wooden formwork comprises an "L"-shaped rod and a right-angle limit plate which is sleeved on the "L"-shaped rod and clamped on two adjacent rear secondary ribs in cooperation therewith; a locking nut is arranged on one side of the right-angle limit plate on the "L"-shaped rod, a channel which is adapted to the "L"-shaped rod is arranged on one side of the plate surface of the right-angle limit plate, and one end of the "L"-shaped rod passes through the channel of the right-angle limit plate and is threadedly connected with the locking nut.

[0008] A further improvement of the technical solution of the utility model is that the "L"-shaped rod is a telescopic adjustment structure, including connecting rods that penetrate the channel and are hollow inside and are mutually clamped, and an "L"-shaped limiting rod that can be telescopically adjusted inside the connecting rod.

[0009] A further improvement of the technical solution of the utility model is that an elastic block is arranged on the "L"-shaped limit rod, and a plurality of positioning holes adapted to the elastic block are evenly spaced along the length direction of the connecting rod.

[0010] A further improvement of the technical solution of the utility model is that at least two positioning holes are provided.

[0011] A further improvement of the technical solution of the utility model is that: a rotating cover adapted to the positioning hole is arranged on the positioning hole, and the rotating cover is connected to the side wall of the connecting rod through a rotating shaft.

[0012] A further improvement of the technical solution of the utility model is that: the connecting rod is provided with an external thread adapted to the locking nut at one end away from the positioning hole and a stopper is provided at the end thereof.

[0013] A further improvement of the technical solution of the utility model is that a washer sleeved on the connecting rod is arranged between the channel of the right-angle limit plate and the locking nut.

[0014] A further improvement of the technical solution of the utility model is that the washer is provided with a ratchet groove along its circumference which is consistent with the screwing direction of the locking nut.

[0015] A further improvement of the technical solution of the utility model is that the right-angle limit plate adopts angle steel.

[0016] A further improvement of the technical solution of the utility model is that the "L"-shaped rod is made of steel pipe.

[0017] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0018] The fastening device of the utility model can effectively clamp the rear secondary ribs of the template, realize local reinforcement of the rear secondary ribs of the template, achieve the effect of clamping the secondary ribs and tightening the template joints, has a simple structure and convenient installation, and can effectively improve the construction quality and ensure the smooth progress of the construction work.

[0019] The "L"-shaped rod adopted by the fastening device of the utility model is a telescopic adjustment structure. Through the elastic block of the "L"-shaped limit rod and the positioning hole on the connecting rod, the length can be flexibly adjusted according to the size of the rear secondary rib, and it has high versatility and practicality.

[0020] The fastening device of the utility model adopts a rotating cover arranged on the positioning hole, and the rotating cover can open or close the positioning hole. When the rotating cover is opened, the elastic block can be released and engaged from the positioning hole, so as to achieve the purpose of adjusting the length of the "L"-shaped limit rod and fixing its length. The operator can position the positioning hole according to the needs, so that the fastening device can adapt to various secondary rib sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a wooden template in the background technology of the utility model;

[0022] Figure 2 It is an assembly diagram of the embodiment 1 of the fastening device of the utility model;

[0023] Figure 3 It is an assembly diagram of the fastening device embodiment 2-5 of the utility model;

[0024] Figure 4 It is a structural schematic diagram of Embodiment 2-5 of the fastening device of the utility model;

[0025] Among them, 1. rear secondary rib, 2. "L" shaped rod, 21. connecting rod, 211. positioning hole, 212. rotating cover, 22. "L" shaped limiting rod, 221. elastic block, 3. right-angle limiting plate, 31. channel, 4. locking nut, 5. washer, 6. stopper. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] Example 1

[0028] like Figure 2 As shown, this embodiment discloses a fastening device for the rear secondary ribs of a wooden formwork, including an "L"-shaped rod 2 and a right-angle limit plate 3. The right-angle limit plate 3 can be made of angle steel, and the "L"-shaped rod 2 can be made of steel pipe. The right-angle limit plate 3 is sleeved on the "L"-shaped rod 2. The right-angle limit plate 3 and the "L"-shaped rod 2 are oriented opposite to each other. The right-angle limit plate 3 and the "L"-shaped rod 2 can cooperate to be clamped on two adjacent rear secondary ribs 1.

[0029] Specifically, a locking nut 4 is provided on the "L"-shaped rod 2, and the locking nut 4 is located on one side of the right-angle limit plate 3. A channel 31 adapted to the "L"-shaped rod 2 is provided on one side of the right-angle limit plate 3. The channel 31 and one side of the right-angle limit plate 3 are integrally formed and can also be fixed by welding. One end of the "L"-shaped rod 2 can pass through the channel 31 of the right-angle limit plate 3 and be threadedly connected with the locking nut 4. The end of the "L"-shaped rod 2 connected to the locking nut 4 is provided with an external thread adapted to the internal thread of the locking nut 4.

[0030] During operation, the "L"-shaped rod 2 is passed through the channel 31 of the right-angle limit plate 3 and is locked using the locking nut 4, so that the "L"-shaped rod 2 and the right-angle limit plate 3 are respectively clamped on both sides of the two adjacent rear secondary ribs 1, providing the two rear secondary ribs 1 with opposite clamping forces, thereby achieving local reinforcement of the rear secondary ribs 1 of the template, achieving the effect of clamping the secondary ribs and tightening the template joints, with a simple structure and convenient installation, which can effectively improve the construction quality and ensure the smooth progress of the construction work, and the fastening device of this embodiment adopts a detachable manner, which is more practical and convenient, and easy to maintain.

[0031] Example 2

[0032] like Figure 3 and Figure 4 As shown, the present embodiment discloses a fastening device for the rear secondary ribs of a wooden formwork, comprising an "L"-shaped rod 2 and a right-angle limit plate 3. The right-angle limit plate 3 can be made of angle steel, and the "L"-shaped rod 2 can be made of steel pipe. The right-angle limit plate 3 is sleeved on the "L"-shaped rod 2. The right-angle limit plate 3 and the "L"-shaped rod 2 are oriented opposite to each other, and the right-angle limit plate 3 and the "L"-shaped rod 2 can cooperate to be clamped on two adjacent rear secondary ribs 1.

[0033] Specifically, a locking nut 4 is provided on the "L"-shaped rod 2, and the locking nut 4 is located on one side of the right-angle limit plate 3. A channel 31 adapted to the "L"-shaped rod 2 is provided on one side of the right-angle limit plate 3. The channel 31 and one side of the right-angle limit plate 3 are integrally formed and can also be fixed by welding. One end of the "L"-shaped rod 2 can pass through the channel 31 of the right-angle limit plate 3 and be threadedly connected with the locking nut 4. The end of the "L"-shaped rod 2 connected to the locking nut 4 is provided with an external thread adapted to the internal thread of the locking nut 4.

[0034] The "L"-shaped rod 2 is a telescopic adjustment structure, which can flexibly adjust the length according to the size of the rear secondary rib 1, and has high versatility and practicality. The "L"-shaped rod 2 includes a connecting rod 21 and an "L"-shaped limiting rod 22 that are mutually clamped. The interior of the connecting rod 21 is hollow and can be made of a steel pipe. One end of the connecting rod 21 passes through the channel 31 and is threadedly connected to the locking nut 4, and the other end is connected to the "L"-shaped limiting rod 22. The "L"-shaped limiting rod 22 can be telescopically adjusted and clamped inside the connecting rod 21.

[0035] Specifically, an elastic block 221 is provided on the "L"-shaped limit rod 22, and a plurality of positioning holes 211 are evenly spaced along the length direction of the connecting rod 21. The number of positioning holes 211 can be set according to demand, and at least two positioning holes 211 are provided. Preferably, four positioning holes 211 are provided. The positioning holes 211 are adapted to the shape and size of the elastic block 221 and can be engaged in the positioning holes 211.

[0036] Example 3

[0037] like Figure 3 and Figure 4 As shown, the present embodiment discloses a fastening device for the rear secondary ribs of a wooden formwork, comprising an "L"-shaped rod 2 and a right-angle limit plate 3. The right-angle limit plate 3 can be made of angle steel, and the "L"-shaped rod 2 can be made of steel pipe. The right-angle limit plate 3 is sleeved on the "L"-shaped rod 2. The right-angle limit plate 3 and the "L"-shaped rod 2 are oriented opposite to each other, and the right-angle limit plate 3 and the "L"-shaped rod 2 can cooperate to be clamped on two adjacent rear secondary ribs 1.

[0038] Specifically, a locking nut 4 is provided on the "L"-shaped rod 2, and the locking nut 4 is located on one side of the right-angle limit plate 3. A channel 31 adapted to the "L"-shaped rod 2 is provided on one side of the right-angle limit plate 3. The channel 31 and one side of the right-angle limit plate 3 are integrally formed and can also be fixed by welding. One end of the "L"-shaped rod 2 can pass through the channel 31 of the right-angle limit plate 3 and be threadedly connected with the locking nut 4. The end of the "L"-shaped rod 2 connected to the locking nut 4 is provided with an external thread adapted to the internal thread of the locking nut 4.

[0039] The "L"-shaped rod 2 is a telescopic adjustment structure, which can flexibly adjust the length according to the size of the rear secondary rib 1, and has high versatility and practicality. The "L"-shaped rod 2 includes a connecting rod 21 and an "L"-shaped limiting rod 22 that are mutually clamped. The interior of the connecting rod 21 is hollow and can be made of a steel pipe. One end of the connecting rod 21 passes through the channel 31 and is threadedly connected to the locking nut 4, and the other end is connected to the "L"-shaped limiting rod 22. The "L"-shaped limiting rod 22 can be telescopically adjusted and clamped inside the connecting rod 21.

[0040] Specifically, an elastic block 221 is provided on the "L"-shaped limit rod 22, and a plurality of positioning holes 211 are evenly spaced along the length direction of the connecting rod 21. The number of positioning holes 211 can be set according to demand, and at least two positioning holes 211 are provided. Preferably, four positioning holes 211 are provided. The positioning holes 211 are adapted to the shape and size of the elastic block 221 and can be engaged in the positioning holes 211.

[0041] The positioning hole 211 is provided with a rotating cover 212 adapted thereto, and the rotating cover 212 is connected to the side wall of the connecting rod 21 via a rotating shaft. The rotating cover 212 can control the opening or closing of the positioning hole 211, so as to facilitate the selection of the positioning hole 211. When the rotating cover 212 is opened, the elastic block 221 can be released and engaged from the selected positioning hole 211, and the other positioning holes 211 are closed. When the elastic block 221 passes through these closed positioning holes 211, it is in a compressed state, so as to facilitate the "L"-shaped limiting rod 22 to move in the connecting rod 21 to adjust the length and fix its length.

[0042] Example 4

[0043] like Figure 3 and Figure 4 As shown, the present embodiment discloses a fastening device for the rear secondary ribs of a wooden formwork, comprising an "L"-shaped rod 2 and a right-angle limit plate 3. The right-angle limit plate 3 can be made of angle steel, and the "L"-shaped rod 2 can be made of steel pipe. The right-angle limit plate 3 is sleeved on the "L"-shaped rod 2. The right-angle limit plate 3 and the "L"-shaped rod 2 are oriented opposite to each other, and the right-angle limit plate 3 and the "L"-shaped rod 2 can cooperate to be clamped on two adjacent rear secondary ribs 1.

[0044] Specifically, a locking nut 4 is provided on the "L"-shaped rod 2, and the locking nut 4 is located on one side of the right-angle limit plate 3. A channel 31 adapted to the "L"-shaped rod 2 is provided on one side of the right-angle limit plate 3. The channel 31 and one side of the right-angle limit plate 3 are integrally formed and can also be fixed by welding. One end of the "L"-shaped rod 2 can pass through the channel 31 of the right-angle limit plate 3 and be threadedly connected with the locking nut 4. The end of the "L"-shaped rod 2 connected to the locking nut 4 is provided with an external thread adapted to the internal thread of the locking nut 4.

[0045] The "L"-shaped rod 2 is a telescopic adjustment structure, which can flexibly adjust the length according to the size of the rear secondary rib 1, and has high versatility and practicality. The "L"-shaped rod 2 includes a connecting rod 21 and an "L"-shaped limiting rod 22 that are mutually clamped. The interior of the connecting rod 21 is hollow and can be made of a steel pipe. One end of the connecting rod 21 passes through the channel 31 and is threadedly connected to the locking nut 4, and the other end is connected to the "L"-shaped limiting rod 22. The "L"-shaped limiting rod 22 can be telescopically adjusted and clamped inside the connecting rod 21.

[0046] Specifically, an elastic block 221 is provided on the "L"-shaped limit rod 22, and a plurality of positioning holes 211 are evenly spaced along the length direction of the connecting rod 21. The number of positioning holes 211 can be set according to demand, and at least two positioning holes 211 are provided. Preferably, four positioning holes 211 are provided. The positioning holes 211 are adapted to the shape and size of the elastic block 221 and can be engaged in the positioning holes 211.

[0047] The positioning hole 211 is provided with a rotating cover 212 adapted thereto, and the rotating cover 212 is connected to the side wall of the connecting rod 21 via a rotating shaft. The rotating cover 212 can control the opening or closing of the positioning hole 211, so as to facilitate the selection of the positioning hole 211. When the rotating cover 212 is opened, the elastic block 221 can be released and engaged from the selected positioning hole 211, and the other positioning holes 211 are closed. When the elastic block 221 passes through these closed positioning holes 211, it is in a compressed state, so as to facilitate the "L"-shaped limiting rod 22 to move in the connecting rod 21 to adjust the length and fix its length.

[0048] The connecting rod 21 is provided with an external thread adapted to the locking nut 4 at one end away from the positioning hole 211 , and a stopper 6 is provided at its end, which can effectively prevent the locking nut 4 from falling off when disassembling the fastening device of this embodiment.

[0049] Example 5

[0050] like Figure 3 and Figure 4 As shown, the present embodiment discloses a fastening device for the rear secondary ribs of a wooden formwork, comprising an "L"-shaped rod 2 and a right-angle limit plate 3. The right-angle limit plate 3 can be made of angle steel, and the "L"-shaped rod 2 can be made of steel pipe. The right-angle limit plate 3 is sleeved on the "L"-shaped rod 2. The right-angle limit plate 3 and the "L"-shaped rod 2 are oriented opposite to each other, and the right-angle limit plate 3 and the "L"-shaped rod 2 can cooperate to be clamped on two adjacent rear secondary ribs 1.

[0051] Specifically, a locking nut 4 is provided on the "L"-shaped rod 2, and the locking nut 4 is located on one side of the right-angle limit plate 3. A channel 31 adapted to the "L"-shaped rod 2 is provided on one side of the right-angle limit plate 3. The channel 31 and one side of the right-angle limit plate 3 are integrally formed and can also be fixed by welding. One end of the "L"-shaped rod 2 can pass through the channel 31 of the right-angle limit plate 3 and be threadedly connected with the locking nut 4. The end of the "L"-shaped rod 2 connected to the locking nut 4 is provided with an external thread adapted to the internal thread of the locking nut 4.

[0052] The "L"-shaped rod 2 is a telescopic adjustment structure, which can flexibly adjust the length according to the size of the rear secondary rib 1, and has high versatility and practicality. The "L"-shaped rod 2 includes a connecting rod 21 and an "L"-shaped limiting rod 22 that are mutually clamped. The interior of the connecting rod 21 is hollow and can be made of a steel pipe. One end of the connecting rod 21 passes through the channel 31 and is threadedly connected to the locking nut 4, and the other end is connected to the "L"-shaped limiting rod 22. The "L"-shaped limiting rod 22 can be telescopically adjusted and clamped inside the connecting rod 21.

[0053] Specifically, an elastic block 221 is provided on the "L"-shaped limit rod 22, and a plurality of positioning holes 211 are evenly spaced along the length direction of the connecting rod 21. The number of positioning holes 211 can be set according to demand, and at least two positioning holes 211 are provided. Preferably, four positioning holes 211 are provided. The positioning holes 211 are adapted to the shape and size of the elastic block 221 and can be engaged in the positioning holes 211.

[0054] The positioning hole 211 is provided with a rotating cover 212 adapted thereto, and the rotating cover 212 is connected to the side wall of the connecting rod 21 via a rotating shaft. The rotating cover 212 can control the opening or closing of the positioning hole 211, so as to facilitate the selection of the positioning hole 211. When the rotating cover 212 is opened, the elastic block 221 can be released and engaged from the selected positioning hole 211, and the other positioning holes 211 are closed. When the elastic block 221 passes through these closed positioning holes 211, it is in a compressed state, so as to facilitate the "L"-shaped limiting rod 22 to move in the connecting rod 21 to adjust the length and fix its length.

[0055] The connecting rod 21 is provided with an external thread adapted to the locking nut 4 at one end away from the positioning hole 211 , and a stopper 6 is provided at its end, which can effectively prevent the locking nut 4 from falling off when disassembling the fastening device of this embodiment.

[0056] A washer 5 sleeved on the connecting rod 21 is arranged between the channel 31 of the right-angle limit plate 3 and the locking nut 4. The washer 5 is provided with a ratchet groove along its circumference in the same direction as the locking nut 4 is screwed, thereby effectively preventing the locking nut 4 from loosening and affecting the fastening effect of the rear secondary rib 1.

[0057] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A fastening device for the rear secondary rib of a wooden formwork, characterized in that: The invention comprises an "L"-shaped rod (2) and a right-angled stopper plate (3) which is sleeved on the "L"-shaped rod (2) and is clamped on two adjacent rear secondary ribs (1) in cooperation with the "L"-shaped rod (2); a locking nut (4) is arranged on one side of the right-angled stopper plate (3) on the "L"-shaped rod (2); a channel (31) adapted to the "L"-shaped rod (2) is arranged on one side of the plate surface of the right-angled stopper plate (3); one end of the "L"-shaped rod (2) passes through the channel (31) of the right-angled stopper plate (3) and is threadedly connected to the locking nut (4).

2. A fastening device for the rear secondary rib of a wooden formwork according to claim 1, characterized in that: The "L"-shaped rod (2) is a telescopic adjustment structure, comprising a connecting rod (21) which penetrates the channel (31) and is mutually clamped and hollow inside, and an "L"-shaped limiting rod (22) which can be telescopically adjusted inside the connecting rod (21).

3. A fastening device for the rear secondary rib of a wooden formwork according to claim 2, characterized in that: The "L"-shaped limiting rod (22) is provided with an elastic block (221), and the connecting rod (21) is provided with a plurality of positioning holes (211) that are adapted to the elastic block (221) at even intervals along its length direction.

4. A fastening device for the rear secondary rib of a wooden formwork according to claim 3, characterized in that: At least two positioning holes (211) are provided.

5. A fastening device for the rear secondary rib of a wooden formwork according to claim 4, characterized in that: The positioning hole (211) is provided with a rotating cover (212) adapted thereto, and the rotating cover (212) is connected to the side wall of the connecting rod (21) via a rotating shaft.

6. A fastening device for the rear secondary rib of a wooden formwork according to claim 5, characterized in that: The connecting rod (21) is provided with an external thread adapted to the locking nut (4) at one end away from the positioning hole (211), and a stopper (6) is provided at the end thereof.

7. A fastening device for the rear secondary rib of a wooden formwork according to claim 6, characterized in that: A washer (5) sleeved on the connecting rod (21) is provided between the channel (31) of the right-angle limiting plate (3) and the locking nut (4).

8. A fastening device for the rear secondary rib of a wooden formwork according to claim 7, characterized in that: The washer (5) is provided with ratchet grooves along its circumference which are consistent with the screwing direction of the locking nut (4).

9. A fastening device for the rear secondary rib of a wooden formwork according to any one of claims 1 to 8, characterized in that: The right-angle limiting plate (3) is made of angle steel.

10. A fastening device for the rear secondary rib of a wooden formwork according to any one of claims 1 to 8, characterized in that: The "L"-shaped rod (2) is made of a steel pipe.

Images