Secondary grouting mold for fan foundation

Abstract

The utility model discloses a fan foundation secondary grouting mould, which comprises an inner mould plate, an outer mould plate and a positioning mechanism, the inner mould plate comprises a plurality of inner mould plate strips, the outer mould plate comprises a plurality of outer mould plate strips, the number of the inner mould plate strips is the same as that of the outer mould plate strips, and the degrees of arcs of the inner mould plate strips and the outer mould plate strips are the same. Each outer formwork strip is provided with a first locking mechanism in a sliding mode, each inner formwork strip is provided with a second locking mechanism in a sliding mode, and the positioning mechanism achieves positioning by clamping two anchor bolts in the same radial direction between the inner formwork and the outer formwork. The positioning mechanism is detachably connected with the first locking mechanism and the second locking mechanism. According to the utility model, the situations of missing detection and formwork shifting are greatly reduced, the cost is saved, and the construction efficiency is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan foundation construction, and particularly relates to a secondary grouting mold for a fan foundation. Background Art

[0002] The traditional secondary grouting mold for a fan foundation is made of a circle of angle steel, which is simply processed by bending and consists of 4 or 6 parts connected by bolts to form two circular molds, one large and one small. During construction, the mold is placed inside and outside the anchor bolts of the fan foundation that needs secondary grouting. There is no reliable connection between the mold and the foundation, and unreliable methods such as covering with soil or using stones are mostly used to fix the mold, which easily causes quality hazards such as slurry leakage and formwork displacement during the secondary grouting construction process and wastes slurry. Content of the Utility Model

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a secondary grouting mold for a fan foundation.

[0004] The technical solution adopted by the utility model is: a secondary grouting mold for a fan foundation, including an inner template, an outer template, and a positioning mechanism. The inner template includes multiple inner template strips, the outer template includes multiple outer template strips. The number of the inner template strips is the same as that of the outer template strips and the arc degrees are the same. A first locking mechanism is slidably arranged on each outer template strip, and a second locking mechanism is slidably arranged on each inner template strip. The positioning mechanism realizes positioning by clamping two anchor bolts in the same radial direction between the inner template and the outer template, and the positioning mechanism is detachably connected to the first locking mechanism and the second locking mechanism;

[0005] Further, the positioning mechanism includes a positioning plate, a first long hole is opened on the positioning plate, a clamping block is slidably arranged on one side of the first long hole, one end of the clamping block far away from the first long hole is rotatably connected with a top rod, threads are arranged on the top rod, a support block matched with the top rod is arranged on the positioning plate, a threaded hole matched with the top rod is opened on the support block, the top rod passes through the threaded hole on the support block, a rotating handle is arranged at one end of the top rod far away from the clamping block, second long holes are arranged at both ends of the positioning plate, bolts are arranged in the second long holes, and the nuts of the bolts can be stuck above the second long holes;

[0006] Further, a clamping head is fixed at the front end of the clamping block, and the contact surface between the clamping head and the anchor bolt is set to be arc-shaped;

[0007] Further, the first locking mechanism includes a chute arranged on the outer template strip, the chute is connected with a sliding locking block, and threaded holes matched with bolts are arranged on the locking block. The second locking mechanism has the same structure as the first locking mechanism;

[0008] Further, a scale is provided on the positioning plate;

[0009] Further, a weight assembly is provided between the first long slot and the second long slot. The weight assembly includes a limiting plate, a top block, a guiding rod, a spring, a fixing plate, and a weight block. The limiting plate is fixed on the positioning plate. The top block is slidably arranged on the positioning plate. One end of the guiding rod passes through the top block, and the other end is fixed on the fixing plate. A spring is sleeved on the guiding rod. The fixing plate is fixed on the positioning plate. The top block can move along the guiding rod. The weight block is placed between the top block and the limiting plate, and the guiding rod does not interfere with the weight block.

[0010] In the utility model, by providing a positioning mechanism, a first locking mechanism and a second locking mechanism, the positioning plate realizes positioning by clamping the anchor bolts in the same radial direction already installed on the fan foundation, and the connection between the positioning plate and the first locking mechanism arranged on the outer formwork and the second locking mechanism arranged on the inner formwork realizes the positioning and limiting of the outer formwork and the inner formwork, preventing the phenomenon of formwork displacement. At the same time, after the positioning plate is connected to the first locking mechanism and the second locking mechanism, it also plays a certain limiting role in the upward movement of the outer formwork and the inner formwork, reducing the occurrence of slurry leakage. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the utility model.

[0012] Figure 2 is a schematic structural diagram of the positioning mechanism of the utility model.

[0013] Figure 3 is this Figure 2 schematic structural diagram of the structure at circle A.

[0014] Figure 4 is a schematic structural diagram of the first locking mechanism of the utility model.

[0015] Figure 5 is a schematic structural diagram of the weight assembly of the utility model.

[0016] In the figure: 100. Outer formwork, 101. Outer formwork strip, 200. Inner formwork, 201. Inner formwork strip, 300. First locking mechanism, 301. Chute, 302. Sliding locking block, 400. Positioning mechanism, 401. Positioning plate, 402. First long slot, 403. Clamping block, 404. Thrust rod, 405. Support block, 406. Rotating handle, 407. Second long slot, 500. Weight assembly, 501. Limiting plate, 502. Top block, 503. Guiding rod, 504. Spring, 505. Fixing plate slot, 506. Weight block. Detailed Description of the Preferred Embodiments

[0017] To better understand the technical solution of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings.

[0018] As Figures 1-5 shown, a secondary grouting mold for a fan foundation includes an inner template 200, an outer template 100, and a positioning mechanism 400. The inner template 200 includes a plurality of inner template strips 201, and the outer template 100 includes a plurality of outer template strips 101. The number of the inner template strips 201 is the same as that of the outer template strips 101, and the arc degrees are the same. A first locking mechanism 300 is slidably provided on each outer template strip 101, and a second locking mechanism is slidably provided on each inner template strip 201. The positioning mechanism 400 is positioned by clamping two anchor bolts in the same radial direction between the inner template 200 and the outer template 100. The positioning mechanism 400 is detachably connected to the first locking mechanism 300 and the second locking mechanism. During use, first place the outer template 100 and the inner template 200 roughly, then clamp the positioning mechanism 400 with the anchor bolts, and then fix the first locking mechanism 300 and the second locking mechanism to the positioning mechanism 400 to achieve the positioning and limiting of the outer template 100 and the inner template 200. Each outer template strip 101 and its corresponding inner template strip 201 are equipped with a positioning mechanism 400. In common templates, the number of the outer template strips 101 and the inner template strips 201 is generally set to four or six;

[0019] Specifically, the positioning mechanism 400 includes a positioning plate 401. A first long hole 402 is formed in the positioning plate 401. A clamping block 403 is slidably arranged on one side of the first long hole 402. One end of the clamping block 403 away from the first long hole 402 is rotatably connected to a ejector rod 404. Threads are provided on the ejector rod 404. A support block 405 cooperating with the ejector rod 404 is arranged on the positioning plate 401. A threaded hole cooperating with the ejector rod 404 is formed in the support block 405. The ejector rod 404 passes through the threaded hole in the support block 405. A rotary handle 406 is arranged at one end of the ejector rod 404 away from the clamping block 403. Second long holes 407 are arranged at both ends of the positioning plate 401. Bolts are arranged in the second long holes 407. The nuts of the bolts can be stuck above the second long holes 407. The first locking mechanism 300 includes a chute 301 arranged on the outer template strip 101. The chute 301 is connected to a sliding locking block 302. Threaded holes cooperating with the bolts are arranged on the locking block. The second locking mechanism has the same structure as the first locking mechanism 300. During use, the first long hole 402 of the positioning plate 401 is sleeved on two anchor bolts in the same radial direction, so that the side of the first long hole 402 without the clamping block 403 is stuck on the anchor bolts. The rotary handle 406 is rotated, and the clamping block 403 moves towards the anchor bolts until the clamping block 403 clamps the corresponding side of the anchor bolts. Then, the sliding locking blocks 302 on the first locking mechanism 300 and the second locking mechanism are adjusted so that the positions of the threaded holes correspond to the bolts in the second long holes 407, and then the bolts are locked;

[0020] Preferably, a clamping head is fixed at the front end of the clamping block 403. The contact surface between the clamping head and the anchor bolt is set to be arc-shaped, increasing the contact area with the anchor bolt and preventing it from easily moving up and down after clamping;

[0021] Preferably, scales are arranged on the positioning plate 401, which is convenient for workers to determine the positions of the outer template 100 and the inner template 200 according to construction requirements. Since the circle formed by the outer template 100 and the inner template 200 is centered on the foundation center and its radius is a determined value, and the positioning plate 401 is positioned by the anchor bolts in the same radial direction, it can be considered that a certain radius of the circle of the positioning plate 401 coincides with the circles of the outer template 100 and the inner template 200. By marking the distance from the positioning plate 401 to the foundation center as a scale on the positioning plate 401, the radii of the circles of the outer template 100 and the inner template 200 can be determined according to this scale, so as to determine the positions of the outer template 100 and the inner template 200, without the trouble of measuring with a ruler;

[0022] Preferably, a counterweight assembly 500 is further disposed between the first long hole 402 and the second long hole 407. The counterweight assembly 500 includes a limit plate 501, a top block 502, a guide rod 503, a spring 504, a fixing plate 505, and a counterweight 506. The limit plate 501 is fixed to the positioning plate 401. The top block 502 is slidably disposed on the positioning plate 401. One end of the guide rod 503 passes through the top block 502, and the other end is fixed to the fixing plate 505. A spring 504 is sleeved on the guide rod 503. The fixing plate 505 is fixed to the positioning plate 401. The top block 502 can move along the guide rod 503. The counterweight 506 is placed between the top block 502 and the limit plate 501. The guide rod 503 does not interfere with the counterweight 506. The counterweight 506 is a steel block. When in use, for the convenience of the staff to move the positioning plate 401, the counterweight 506 is first removed. After the positioning plate 401 is installed in place, the staff pushes the top block 502 in the direction of compressing the spring 504. When the top block 502 moves a certain distance and the counterweight 506 can be placed between the top block 502 and the limit plate 501, another staff member places the counterweight 506 between the top block 502 and the limit plate 501, and then releases the top block 502. The top block 502 is tightened against the counterweight 506 under the elastic force of the spring 504. The counterweight 506 is used to increase the downward force on the outer formwork 100 and the inner formwork 200 to prevent slurry leakage. The slurry for secondary grouting is relatively expensive.

[0023] Working principle: When in use, first roughly place the outer formwork 100 and the inner formwork 200, then clamp the first long hole 402 side of the positioning plate 401 with the anchor bolt, rotate the rotary handle 406, and the clamping block 403 moves towards the anchor bolt until the clamping block 403 clamps the corresponding side of the anchor bolt. Fine-tune the positions of the outer formwork 100 and the inner formwork 200 through the scale on the positioning plate 401. Then adjust the sliding locking block 302 on the first locking mechanism 300 and the second locking mechanism so that the position of its screw hole corresponds to the bolt in the second long hole 407, and then lock the bolt. Finally, the staff pushes the top block 502 in the direction of compressing the spring 504. When the top block 502 moves a certain distance and the counterweight 506 can be placed between the top block 502 and the limit plate 501, another staff member places the counterweight 506 between the top block 502 and the limit plate 501, and then releases the top block 502. The top block 502 is tightened against the counterweight 506 under the elastic force of the spring 504.

[0024] The above is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A secondary grouting mold for a fan foundation, comprising an inner mold and an outer mold, wherein the inner mold comprises a plurality of inner mold strips, and the outer mold comprises a plurality of outer mold strips, wherein the inner mold strips and the outer mold strips have the same number and the same arc degree, and are characterized in that: Each of the outer template strips can be slidably provided with a first locking mechanism, and each of the inner template strips can be slidably provided with a second locking mechanism. It also includes a positioning mechanism, which realizes positioning by clamping two anchor bolts in the same radial direction between the inner template and the outer template. The positioning mechanism is detachably connected to the first locking mechanism and the second locking mechanism.

2. A secondary grouting mold for fan foundation according to claim 1, characterized in that: The positioning mechanism includes a positioning plate, a first elongated hole is formed on the positioning plate, a clamping block is slidably provided on one side of the first elongated hole, an end of the clamping block away from the first elongated hole is rotatably connected to a push rod, a thread is provided on the push rod, a supporting block cooperating with the push rod is provided on the positioning plate, a threaded hole cooperating with the push rod is formed on the supporting block, the push rod passes through the threaded hole on the supporting block, and a handle is rotated at one end of the push rod away from the clamping block, and second elongated holes are provided at both ends of the positioning plate, a bolt is provided in the second elongated hole, and the nut of the bolt can be clamped above the second elongated hole.

3. A secondary grouting mold for fan foundation according to claim 2, characterized in that: A clamping head is fixed at the front end of the clamping block, and the contact surface between the clamping head and the anchor bolt is arranged in an arc shape.

4. A secondary grouting mold for fan foundation according to claim 2, characterized in that: The first locking mechanism comprises a slide groove arranged on the outer template strip, the slide groove is connected to the sliding locking block, the locking block is provided with a screw hole matched with the bolt, and the second locking mechanism has the same structure as the first locking mechanism.

5. A secondary grouting mold for fan foundation according to claim 2, characterized in that: The positioning plate is provided with a scale.

6. A secondary grouting mold for fan foundation according to claim 2, characterized in that: A counterweight assembly is also provided between the first elongated hole and the second elongated hole, and the counterweight assembly includes a limit plate, a top block, a guide rod, a spring, a fixed plate, and a counterweight block. The limit plate is fixed to the positioning plate, and the top block can be slidably provided on the positioning plate. One end of the guide rod passes through the top block, and the other end is fixed to the fixed plate. A spring is sleeved on the guide rod, and the fixed plate is fixed to the positioning plate. The top block can move along the guide rod, and the counterweight block is placed between the top block and the limit plate, and the guide rod does not interfere with the counterweight block.

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