A kind of strong pull fastener for precast concrete parts

Abstract

The utility model relates to the technical field of precast concrete parts, specifically to a precast concrete part strong pulling fastener, comprising a base, the back side of the base is fixedly connected to the front side of a fixing part, a strong pulling disc is pulled by a pull ring, the strong pulling disc pulls a strong pulling plate by a pulling block, the strong pulling plate pulls a push sleeve by a connecting plate to slide, so that the push sleeve pushes a rotating plate to rotate, and the rotating plate drives a clamping block to rotate by a connecting block, so that the clamping block clamps a steel bar in the precast concrete part, and the greater the pulling force is, the greater the force of the clamping block clamping the steel bar is, so that the steel bar in the precast concrete part and the fastener are connected more firmly, and when in use, the pulling block is put into a pulling groove, and a fixing bolt is screwed, and the fixing bolt drives a fixing rod to slide by a threaded meshing force with a fixing nut, so that the fixing rod passes through a through hole and slides into the pulling groove, so that the fixing rod clamps the pulling block in the pulling groove, so that people can install the buckle more conveniently, which brings convenience to people's use.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated concrete parts, in particular to a prefabricated concrete part strong pull fastener. Background Art

[0002] Whether the steel bars in precast concrete parts can be effectively pulled is the premise of the quality of precast concrete parts. The pulling of steel bars is divided into fixed pulling curing and shaping and positioning pulling and shifting curing and shaping. Floor slab precast parts and bridge precast parts are fixed pulling curing and shaping; while concrete pipe piles and concrete poles are positioned pulling and shifting curing and shaping.

[0003] At present, most of the precast concrete parts on the market are forced to pull the fasteners. When the force of pulling the steel bars in the precast concrete parts is too large, the fasteners are easily separated from the steel bars in the precast concrete parts, which brings inconvenience to people's use. Utility Model Content

[0004] The purpose of the utility model is to provide a precast concrete part strong pull fastener, so as to solve the problem raised in the above background technology that the force of the fastener to pull the steel bars in the precast concrete part is too large, which easily leads to the separation of the fastener and the steel bars in the precast concrete part. To achieve the above purpose, the utility model provides the following technical solutions: a precast concrete part strong pull fastener, comprising a base, the back side of the base is fixedly connected to the front side of the fixing member, the front side of the base is fixedly connected to the back side of the strong pull member, the inner wall of the strong pull member is movably connected to the outer wall of the support member, and the bottom end of the support member is fixedly connected to the top of the clip member.

[0005] The number of the strong pulling members, the supporting members and the snapping members are all five, and the five strong pulling members, the five supporting members and the five snapping members are all distributed in a circular array along the central axis of the base.

[0006] Preferably, the base includes a pull ring, a strong pull disk and a pulling block, the front side of the pull ring is fixedly connected to the back side of the strong pull disk, and five pulling grooves are provided on the front side of the strong pull disk, the inner wall of the pulling groove is movably abutted against the outer wall of the pulling block, and there are five pulling blocks, which are distributed in a circular array along the central axis of the strong pull disk, and a through hole is provided on the front side of the inner wall of the pulling groove.

[0007] Preferably, the fixing part consists of a fixing nut, a fixing bolt and a fixing rod, the front side of the fixing nut is fixedly connected to the back side of the strong pulling disk, the inner wall of the fixing nut is threadedly connected to the outer wall of the fixing bolt, and the front side of the fixing bolt is fixedly connected to one end of the back side of the fixing rod.

[0008] Preferably, the strong pulling member includes a strong pulling plate, a connecting plate and a resisting sleeve, the back side of the strong pulling plate is fixedly connected to the front side of the pulling block, the front side of the strong pulling plate is fixedly connected to the back side of the connecting plate, and the front side of the connecting plate is fixedly connected to the back side of the resisting sleeve.

[0009] Preferably, the support member is composed of a support sleeve, a limiting ring and a rotating shaft, the outer wall of the support sleeve is movably connected to the inner wall of the movable sleeve, and the outer wall of the front side of the support sleeve is fixedly connected to the inner wall of the limiting ring, the back side of the limiting ring is movably connected to the front side of the movable sleeve, and the outer wall of the support sleeve is provided with two rotating grooves, the inner wall of the rotating groove is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the outer wall of the rotating shaft.

[0010] Preferably, the fastener includes a rotating plate, a connecting block and a clamping block, the top of the rotating plate is fixedly connected to the bottom end of the rotating shaft, and one side of the rotating plate is fixedly connected to one side of the connecting block, and the other side of the connecting block is fixedly connected to one side of the clamping block, and the number of the rotating plates, connecting blocks and clamping blocks is two, and the two rotating plates, two connecting blocks and two clamping blocks are mirrored along the central axis of the support sleeve.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the strong pulling disk is pulled by the pulling ring, the strong pulling disk pulls the strong pulling plate through the pulling block, the strong pulling plate pulls the abutting sleeve to slide through the connecting plate, so that the abutting sleeve abuts the rotating plate to rotate, and the rotating plate drives the clamping block to rotate through the connecting block, so that the clamping block clamps the steel bars in the precast concrete part. The greater the pulling force, the greater the force of the clamping block to clamp the steel bars, thereby making the connection between the steel bars and the fasteners in the precast concrete part more firmly, which brings convenience to people.

[0013] In the utility model, when in use, the pulling block is put into the pulling groove, and the fixing bolt is screwed. The fixing bolt drives the fixing rod to slide through the threaded meshing force with the fixing nut, so that the fixing rod passes through the through hole and slides into the pulling groove, so that the fixing rod clamps the pulling block in the pulling groove, thereby making it more convenient for people to install the buckle and bringing convenience to people's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 It is an exploded view of the fixing member in the utility model;

[0018] Figure 5 It is an exploded view of the strong pulling member, the supporting member and the snap fastener in the utility model.

[0019] In the figure: 1. base; 101. pull ring; 102. strong pull plate; 103. pulling block; 2. fixing member; 201. fixing nut; 202. fixing bolt; 203. fixing rod; 3. strong pull member; 301. strong pull plate; 302. connecting plate; 303. abutting sleeve; 4. supporting member; 401. supporting sleeve; 402. limiting ring; 403. rotating shaft; 5. snap member; 501. rotating plate; 502. connecting block; 503. clamping block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a precast concrete fastener, comprising a base 1, the back of the base 1 is fixedly connected to the front of a fixing member 2, the front of the base 1 is fixedly connected to the back of a fastener 3, the inner wall of the fastener 3 is movably sleeved with the outer wall of a support member 4, and the bottom end of the support member 4 is fixedly connected to the top of a fastener 5.

[0022] The number of the strong pulling members 3 , the supporting members 4 and the snapping members 5 are all five, and the five strong pulling members 3 , the five supporting members 4 and the five snapping members 5 are all distributed in a circular array along the central axis of the base 1 .

[0023] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the base 1 includes a pull ring 101, a strong pull disk 102 and a pulling block 103. The front side of the pull ring 101 is fixedly connected to the back side of the strong pull disk 102, and the front side of the strong pull disk 102 is provided with five pulling grooves, the inner wall of the pulling groove is movably abutted against the outer wall of the pulling block 103, and the number of the pulling blocks 103 is five, and the five pulling blocks 103 are distributed in a circular array along the central axis of the strong pull disk 102, and a through hole is provided on the front side of the inner wall of the pulling groove, and the pulling block 103 is placed in the pulling groove when in use.

[0024] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the fixing member 2 is composed of a fixing nut 201, a fixing bolt 202 and a fixing rod 203. The front side of the fixing nut 201 is fixedly connected to the back side of the strong pulling disk 102, and the inner wall of the fixing nut 201 is threadedly connected to the outer wall of the fixing bolt 202. The front side of the fixing bolt 202 is fixedly connected to one end of the back side of the fixing rod 203. When the fixing bolt 202 is turned, the fixing bolt 202 drives the fixing rod 203 to slide through the threaded engagement force with the fixing nut 201, so that the fixing rod 203 slides through the through hole into the pulling groove, so that the fixing rod 203 clamps the pulling block 103 in the pulling groove.

[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the strong pulling member 3 includes a strong pulling plate 301, a connecting plate 302 and a moving sleeve 303. The back of the strong pulling plate 301 is fixedly connected to the front of the pulling block 103, and the front of the strong pulling plate 301 is fixedly connected to the back of the connecting plate 302. The front of the connecting plate 302 is fixedly connected to the back of the moving sleeve 303. The strong pulling disk 102 is pulled by the pull ring 101, the strong pulling disk 102 pulls the strong pulling plate 301 through the pulling block 103, and the strong pulling plate 301 pulls the moving sleeve 303 to slide through the connecting plate 302.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the support member 4 is composed of a support sleeve 401, a limiting ring 402 and a rotating shaft 403. The outer wall of the support sleeve 401 is movably connected to the inner wall of the movable sleeve 303, and the outer wall of the front side of the support sleeve 401 is fixedly connected to the inner wall of the limiting ring 402. The back side of the limiting ring 402 is movably connected to the front side of the movable sleeve 303. The outer wall of the support sleeve 401 is provided with two rotating grooves, the inner wall of the rotating groove is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the outer wall of the rotating shaft 403.

[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fastener 5 includes a rotating plate 501, a connecting block 502 and a clamping block 503. The top of the rotating plate 501 is fixedly connected to the bottom end of the rotating shaft 403, and one side of the rotating plate 501 is fixedly connected to one side of the connecting block 502, and the other side of the connecting block 502 is fixedly connected to one side of the clamping block 503. The number of the rotating plates 501, the connecting blocks 502 and the clamping blocks 503 is two. The two rotating plates 501, the two connecting blocks 502 and the two clamping blocks 503 are all mirror-imaged along the central axis of the support sleeve 401, so that the actuating sleeve 303 actuates the rotating plate 501 to rotate, and the rotating plate 501 drives the clamping block 503 to rotate through the connecting block 502, so that the clamping block 503 clamps the steel bars in the precast concrete part. The greater the pulling force, the greater the force of the clamping block 503 to clamp the steel bars, thereby making the connection of the steel bars in the precast concrete part more firmly.

[0028] The use method and advantages of the utility model: When the prefabricated concrete part strong pull fastener is working, the working process is as follows:

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when in use, the pulling block 103 is placed in the pulling groove, and the fixing bolt 202 is screwed. The fixing bolt 202 drives the fixing rod 203 to slide through the threaded engagement force with the fixing nut 201, so that the fixing rod 203 passes through the through hole and slides into the pulling groove, so that the fixing rod 203 clamps the pulling block 103 in the pulling groove, and the strong pulling disk 102 is pulled by the pull ring 101. The strong pulling disk 102 pulls the strong pulling plate 301 through the pulling block 103, and the strong pulling plate 301 pulls the abutting sleeve 303 to slide through the connecting plate 302, so that the abutting sleeve 303 abuts the rotating plate 501 to rotate, and the rotating plate 501 drives the clamping block 503 to rotate through the connecting block 502, so that the clamping block 503 clamps the steel bars in the concrete prefabricated part. The greater the pulling force, the greater the force of the clamping block 503 to clamp the steel bars, thereby making the connection of the steel bar strong fasteners in the concrete prefabricated part more firmly.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A precast concrete part tension fastener, comprising a base (1), characterized in that: The back side of the base (1) is fixedly connected to the front side of the fixing member (2), the front side of the base (1) is fixedly connected to the back side of the strong pulling member (3), the inner wall of the strong pulling member (3) is movably sleeved with the outer wall of the supporting member (4), and the bottom end of the supporting member (4) is fixedly connected to the top of the buckle member (5); The number of the strong pulling members (3), the supporting members (4) and the snapping members (5) is five, and the five strong pulling members (3), the five supporting members (4) and the five snapping members (5) are all distributed in a circular array along the central axis of the base (1).

2. A precast concrete fastener according to claim 1, characterized in that: The base (1) comprises a pull ring (101), a strong pull plate (102) and a pulling block (103); the front side of the pull ring (101) is fixedly connected to the back side of the strong pull plate (102); the front side of the strong pull plate (102) is provided with five pulling grooves; the inner wall of the pulling groove is movably abutted against the outer wall of the pulling block (103); the number of the pulling blocks (103) is five; the five pulling blocks (103) are distributed in a circular array along the central axis of the strong pull plate (102); and the front side of the inner wall of the pulling groove is provided with a through hole.

3. A precast concrete part strong pull fastener according to claim 2, characterized in that: The fixing member (2) is composed of a fixing nut (201), a fixing bolt (202) and a fixing rod (203); the front side of the fixing nut (201) is fixedly connected to the back side of the strong pulling plate (102); the inner wall of the fixing nut (201) is threadedly connected to the outer wall of the fixing bolt (202); and the front side of the fixing bolt (202) is fixedly connected to one end of the back side of the fixing rod (203).

4. A precast concrete part strong pull fastener according to claim 3, characterized in that: The strong pulling member (3) comprises a strong pulling plate (301), a connecting plate (302) and an abutting sleeve (303); the back side of the strong pulling plate (301) is fixedly connected to the front side of the pulling block (103); the front side of the strong pulling plate (301) is fixedly connected to the back side of the connecting plate (302); and the front side of the connecting plate (302) is fixedly connected to the back side of the abutting sleeve (303).

5. A precast concrete part strong pull fastener according to claim 4, characterized in that: The support member (4) is composed of a support sleeve (401), a limiting ring (402) and a rotating shaft (403); the outer wall of the support sleeve (401) is movably sleeved with the inner wall of the abutting sleeve (303); the outer wall of the front side of the support sleeve (401) is fixedly connected with the inner wall of the limiting ring (402); the back side of the limiting ring (402) is movably abutted with the front side of the abutting sleeve (303); the outer wall of the support sleeve (401) is provided with two rotating grooves; the inner wall of the rotating groove is provided with a rotating hole; and the inner wall of the rotating hole is rotatably connected with the outer wall of the rotating shaft (403).

6. A precast concrete part strong pull fastener according to claim 5, characterized in that: The fastener (5) comprises a rotating plate (501), a connecting block (502) and a clamping block (503); the top of the rotating plate (501) is fixedly connected to the bottom end of the rotating shaft (403); one side of the rotating plate (501) is fixedly connected to one side of the connecting block (502); the other side of the connecting block (502) is fixedly connected to one side of the clamping block (503); the number of the rotating plate (501), the connecting block (502) and the clamping block (503) is two; the two rotating plates (501), the two connecting blocks (502) and the two clamping blocks (503) are all arranged in a mirror image along the central axis of the support sleeve (401).

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