Portable steel bar bending tool

Abstract

The utility model relates to the technical field of building construction, and particularly discloses a portable steel bar bending tool which comprises a clamping assembly and a supporting assembly connected with the clamping assembly and located at the bottom of the clamping assembly. The clamping assembly comprises a clamping end which is of a U-shaped structure and is used for allowing the reinforcing steel bar to penetrate through and clamping the reinforcing steel bar, and a force applying piece connected with the side, away from an opening of the U-shaped structure, of the clamping end; the supporting assembly is arranged at the bottom of the force application piece. The clamping end comprises two sets of clamping rods arranged in parallel, a connecting rod arranged between the two sets of clamping rods and forming a U-shaped cavity, and limiting pieces arranged at the ends, away from the connecting rod, of the two sets of clamping rods correspondingly, and the two sets of limiting pieces are symmetrically arranged and form a clamping cavity used for clamping a steel bar towards the side close to the limiting pieces. According to the utility model, the clamping assembly, the supporting piece and the force applying piece are matched; by adjusting the positions of the supporting piece and the reinforcing steel bar and the clamping position of the clamping assembly on the reinforcing steel bar, upward bending or downward bending of the reinforcing steel bar can be effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically, to a portable steel bar bending tool. Background Art

[0002] At the construction site, it is often encountered that the end or middle steel bars need to be bent. The on-site treatment plan usually uses a hammer or steel pipe to hit and bend them. Due to the narrow working surface at the bending place, when the existing device is used to bend the steel bars, the degree of bending does not meet the requirements at all, and cannot meet the basic requirements for the thickness of the concrete cover, which will directly affect the quality of the project. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a portable steel bar bending tool;

[0004] The solution adopted by the utility model to solve the technical problem is:

[0005] A portable steel bar bending tool comprises a clamping assembly for clamping steel bars, and a supporting assembly connected to the clamping assembly and located at the bottom of the clamping assembly;

[0006] The clamping assembly comprises a clamping end in a U-shaped structure for passing through and clamping the steel bar, and a force-applying member connected to the opening side of the clamping end away from the U-shaped structure; the supporting assembly is arranged at the bottom of the force-applying member;

[0007] The clamping end includes two groups of clamping rods arranged in parallel, a connecting rod arranged between the two groups of clamping rods to form a U-shaped cavity, and limiting members respectively arranged at one end of the two groups of clamping rods away from the connecting rods and rotatably cooperated with the clamping rods. The two groups of limiting members are symmetrically arranged and form a clamping cavity for clamping the steel bar towards one side.

[0008] In some possible implementations,

[0009] The limiting member includes a rotating shaft coaxially arranged with the clamping rod, a limiting plate rotatably matched with the rotating shaft, and a rotating limiting member respectively connected to the rotating shaft and the limiting plate; two sets of limiting plates are close to one side and cooperate to form a clamping cavity for clamping the steel bar.

[0010] In some possible implementations,

[0011] The rotation limiting member includes a connecting plate installed on the side of the limiting plate close to the U-shaped cavity, a fixing plate connected to the rotating shaft and used to limit the two sets of limiting plates from moving toward each other around the axis of the corresponding rotating shaft, and a limiting spring used to connect the fixing plate and the connecting plate;

[0012] When the limit spring is in the initial state, the fixing plate and the connecting plate are in abutment with each other at one side.

[0013] In some possible implementations,

[0014] The limit plate has a triangular structure; when the limit spring is in the initial state, the bases of the two groups of triangular structures will be on the same plane, and the two groups of limit plates are close to each other on one side to form a clamping cavity with an isosceles trapezoidal structure; wherein the lower bottom of the clamping cavity is coplanar with the bottom edge of the limit plate, and the length of the lower bottom is less than the diameter of the steel bar.

[0015] In some possible implementations,

[0016] The fixing plate and the connecting plate are close to each other on one side to form a chamber for installing a limit spring.

[0017] In some possible implementations,

[0018] A fixing block is respectively arranged on the side of the fixing plate and the connecting plate away from the limiting plate; and both ends of the limiting spring are respectively connected to the sides of the two groups of fixing blocks close to each other.

[0019] In some possible implementations,

[0020] Grooves are respectively arranged on the sides of the fixing plate and the connecting plate close to each other; two groups of grooves are arranged correspondingly and are used to install chambers of limit springs; and both ends of the limit spring are respectively connected to the bottom of the grooves.

[0021] In some possible implementations,

[0022] The support assembly comprises a connecting rod connected to the bottom of the force applying member, and a supporting rod telescopically matched with the connecting rod. An arc groove is arranged at one end of the supporting rod away from the connecting rod.

[0023] In some possible implementations,

[0024] The force-applying member includes a connecting rod whose axis is on the plane formed by the axes of the connecting rod and the limiting rod and one end of which is connected to the connecting rod, and an L-shaped handle connected to the other end of the connecting rod; the connecting rod and the handle are connected to form a Z-shaped structure.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model can effectively realize the upward bending or downward bending of the steel bar by cooperating the clamping assembly, the support member and the force applying member; and by adjusting the position of the support member and the steel bar, and the clamping position of the clamping assembly on the steel bar.

[0027] The utility model avoids the situation that the steel bar cannot be clamped due to the steel bar being too long by setting the rotational cooperation between the limit plate and the clamping rod;

[0028] The utility model effectively limits the rotation of the two sets of limit plates after clamping the steel bars by rotating the limit pieces, thereby effectively avoiding failure to effectively clamp the steel bars.

[0029] The utility model has the advantages of simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0031] Figure 2 It is a side view of the utility model;

[0032] Figure 3 It is a schematic diagram of the position relationship among the steel bar, the limiting member and the clamping cavity in the utility model;

[0033] Figure 4 It is a top view of the utility model;

[0034] Among them: 1-clamping end, 10-clamping rod, 11-limiting member, 110-clamping cavity, 111-rotating shaft, 112-limiting plate, 113-connecting plate, 114-fixing plate, 115-limiting spring, 13-U-shaped cavity, 2-force member, 3-support assembly, 31-connecting rod, 32-support rod, 321-arc groove, 100-steel bar. DETAILED DESCRIPTION

[0035] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0036] The utility model is described in detail below.

[0037] like Figure 1-Figure 4 As shown:

[0038] A portable steel bar bending tool, used for bending a steel bar 100; comprising a clamping assembly for clamping the steel bar 100, and a supporting assembly 3 connected to the clamping assembly and located at the bottom of the clamping assembly;

[0039] The clamping assembly comprises a clamping end 1 which is a U-shaped structure and through which the steel bar 100 passes and clamps it, and a force-applying member 2 connected to the side of the clamping end 1 which is away from the opening of the U-shaped structure; the supporting assembly 3 is arranged at the bottom of the force-applying member 2;

[0040] The clamping end 1 includes two groups of clamping rods 10 arranged in parallel, a connecting rod arranged between the two groups of clamping rods 10 and forming a U-shaped cavity 13, and limiting members 11 respectively arranged at one end of the two groups of clamping rods 10 away from the connecting rod and rotatably matched with the clamping rods 10. The two groups of limiting members 11 are symmetrically arranged and form a clamping cavity 110 for clamping the steel bar 100 toward one side.

[0041] The U-shaped cavity 13 allows the steel bar 100 to pass from bottom to top and be clamped by the clamping cavity 110 after passing through the U-shaped cavity 13;

[0042] The clamping cavity 110 is used to clamp the steel bar 100. The support assembly 3 acts on the steel bar 100 and uses the lever principle to achieve bending of the steel bar 100.

[0043] Specifically, when the steel bar 100 needs to be bent upward, the support assembly 3 acts on the bend of the steel bar 100 and is located above the steel bar 100. The free end of the steel bar 100 passes through the U-shaped cavity 13 from bottom to top and is located in the clamping cavity 110 and clamped by the two sets of limiting members 11. Then, the force applying member 2 is controlled to move downward, and the clamping assembly moves upward around the bend of the steel bar 100, thereby causing the steel bar 100 to bend upward from the bend.

[0044] When the steel bar 100 is bent downward, the bending part of the steel bar 100 will be located in the clamping cavity 110 and clamped by the two sets of limiting members 11; the supporting assembly 3 will be located on the section of the steel bar 100 to be bent, and then the force applying member 2 will be controlled to move downward, and the clamping assembly will move downward around the bending part of the steel bar 100, thereby making the steel bar 100 bend downward from the bending part;

[0045] When the length of the steel bar 100 is short, the steel bar 100 can be directly passed through the U-shaped cavity 13 from bottom to top, and then the free end of the steel bar 100 can be directly passed into the clamping cavity 110;

[0046] However, at the construction site, the steel bar 100 may be long or have complex bending conditions;

[0047] In some possible implementations, in order to use the device to clamp and fix the steel bar 100 suitable for different working conditions to achieve bending;

[0048] The limiting member 11 includes a rotating shaft 111 coaxially arranged with the clamping rod 10, a limiting plate 112 rotatably matched with the rotating shaft 111, and a rotating limiting member respectively connected to the rotating shaft 111 and the limiting plate 112; two sets of limiting plates 112 are close to each other and cooperate to form a clamping cavity 110 for clamping the steel bar 100; the upper part and the bottom part of the clamping cavity 110 are both provided with openings;

[0049] The rotation limiter effectively limits the two sets of limit plates 112 to move toward each other around their corresponding rotation axes 111 after the steel bar 100 passes into the clamping cavity 110, so as to avoid the opening at the bottom of the clamping cavity 110 becoming larger, so that the steel bar 100 cannot be clamped; the relative movement described here is as follows: Figure 3 The limiting plate 112 on the left side of the middle moves clockwise around the corresponding rotating shaft 111, and the limiting plate 112 on the right side moves counterclockwise around the corresponding rotating shaft 111;

[0050] The limiting plate 112 is rotatably matched with the rotating shaft 111. The rotating shaft 111 is provided with a bearing, the inner ring of the bearing is fixedly mounted on the rotating shaft 111, and the outer wall is fixedly connected to the limiting plate 112;

[0051] When in use, by rotating one of the set of limit plates 112, the bottom opening size of the clamping cavity 110 is adjusted to be larger than the diameter of the steel bar 100 (e.g., adjustable Figure 3 The left limiting plate 112 in the middle moves counterclockwise or the right limiting plate 112 is adjusted to move clockwise), so that the steel bar 100 can enter the clamping cavity 110 from the bottom opening of the clamping cavity 110, and then the position of the steel bar 100 in the clamping cavity 110 is adjusted, and the rotating limiting plate 112 is reset by the elastic rotating limiting member, so that the steel bar 100 can finally be close to the limiting plate 112 and abut against one side to achieve clamping;

[0052] Furthermore, the rotation limiting member includes a connecting plate 113 installed on the side of the limiting plate 112 close to the U-shaped cavity 13, a fixing plate 114 connected to the rotating shaft 111 and used to limit the two sets of limiting plates 112 from moving toward each other around the axis of the corresponding rotating shaft 111, and a limiting spring 115 used to connect the fixing plate 114 and the connecting plate 113;

[0053] When the limit spring 115 is in the initial state, the fixing plate 114 and the connecting plate 113 are close to each other and abut against each other, and the fixing plate 114 effectively limits the limit plate 112 from rotating around the rotating shaft 111;

[0054] When the steel bar 100 cannot directly extend into the clamping cavity 110 after passing through the U-shaped cavity 13, the connecting plate 113 in one set of the limiting plates 112 is controlled to rotate away from the corresponding fixing plate 114, so as to increase the size of the bottom opening of the clamping cavity 110, so that the steel bar 100 can enter the clamping cavity 110 from the bottom opening of the clamping cavity 110;

[0055] The limit spring 115 is in a stretched state during the rotation of the limit plate 112, and the steel bar 100 enters the clamping cavity 110. The position of the steel bar 100 in the clamping cavity 110 is adjusted and reset without interfering with the limit plate 112.

[0056] When the limiting plate 112 returns to the initial state, the fixing plate 114 and the connecting plate 113 abut against each other, and then the position of the steel bar 100 and the clamping cavity 110 is adjusted, so that the outer side of the steel bar 100 abuts against the side close to the two sets of limiting plates 112. Since the connecting plate 113 abuts against the fixing plate 114, the steel bar is clamped and clamped when bending;

[0057] In some possible implementations,

[0058] The limiting plate 112 is in a triangular structure; when the limiting spring 115 is in an initial state, the bases of the two sets of triangular structures will be on the same plane, and the two sets of limiting plates 112 are close to each other to form a clamping cavity 110 with an isosceles trapezoidal structure in cross section; wherein the lower bottom of the clamping cavity 110 is coplanar with the bottom side of the limiting plate 112, and the length of the lower bottom is less than the diameter of the steel bar 100;

[0059] The cross section of the clamping cavity 110 is an isosceles trapezoidal structure and the length of the lower bottom is smaller than the diameter of the steel bar 100 so that when the limit spring 115 is in the initial state, the steel bar 100 can be effectively clamped and will not slip out of the bottom opening;

[0060] In some possible implementations, in order to effectively realize the installation of the limit spring 115, the limit plate 112 can be restored to its initial state after rotation adjustment under the elastic force;

[0061] The fixing plate 114 and the connecting plate 113 are close to each other to form a chamber for installing the limit spring 115;

[0062] Specifically, a fixing block is provided on the side of the fixing plate 114 and the connecting plate 113 away from the limiting plate 112; a chamber for installing the limiting spring 115 is formed between the two sets of fixing blocks, and the two ends of the limiting spring 115 are respectively connected to the sides of the two sets of fixing blocks close to each other;

[0063] Alternatively, grooves are provided on the sides of the fixing plate 114 and the connecting plate 113 close to each other; two groups of grooves are provided correspondingly and are used to install chambers of the limit spring; and the two ends of the limit spring are connected to the bottom of the grooves respectively;

[0064] Both of the above methods can realize the installation of the limit spring 115;

[0065] In some possible implementations, in order to be able to adjust the positional relationship between the steel bar 100 and the force applying member 2 according to usage requirements;

[0066] The support assembly 3 includes a connecting rod 31 connected to the bottom of the force applying member 2 and a supporting rod 32 telescopically matched with the connecting rod 31 . An arc groove 321 is provided at one end of the supporting rod 32 away from the connecting rod 31 .

[0067] The provision of the arc-shaped groove 321 will make the contact surface between the support rod 32 and the steel bar 100 larger, ensuring that no movement occurs during bending;

[0068] In some possible implementations,

[0069] The force applying member 2 includes a connecting rod with its axis on the plane formed by the axes of the connecting rod and the limiting rod and one end connected to the connecting rod, and an L-shaped handle connected to the other end of the connecting rod; the connecting rod and the handle are connected to form a Z-shaped structure.

[0070] A method for using the portable steel bar bending tool according to the above,

[0071] When bending the steel bar 100 upward:

[0072] The bottom of the support rod 32 is installed at the bend of the steel bar 100, and the free end of the steel bar 100 passes through the U-shaped cavity 13 from bottom to top and enters the clamping cavity 110;

[0073] When entering the clamping cavity 110, by rotating one set of the limiting plates 112, the bottom opening of the clamping cavity 110 becomes larger, and the steel bar 100 enters the clamping cavity 110 from the bottom opening;

[0074] Then, the position relationship of the steel bar 100 in the clamping cavity 110 is adjusted so that the steel bar 100 does not interfere with the rotation of the limit plate 112 to restore to the initial state;

[0075] Then the rotating limit plate 112 is no longer controlled, the limit spring 115 will recover from the stretched state to the initial state, and the rotated limit plate 112 will recover to the initial state;

[0076] Adjust the position of the steel bar 100 so that the outer side surface of the steel bar 100 abuts against one side of the two sets of limiting plates 112 close to each other;

[0077] By applying a downward force to the force applying member 2, the force applying member 2 moves toward the side close to the bending part, so that the free end of the steel bar 100 moves upward around the bending part, so as to bend upward;

[0078] When bending the steel bar 100 downward:

[0079] The bending part of the steel bar 100 passes through the U-shaped cavity 13 from bottom to top and enters the clamping cavity 110. The bottom of the support rod 32 is installed at the free end of the steel bar 100. One set of limit plates 112 is rotated to adjust the size of the bottom opening of the clamping cavity 110 so that the steel bar 100 enters the clamping cavity 110.

[0080] Under the action of the rotation limiter, the limit plates 112 are restored to their initial state after rotation, and the two sets of limit plates 112 clamp the steel bars 100 tightly;

[0081] By applying a downward force to the force applying member 2, the force applying member 2 moves toward the side close to the bending position, so that the free end of the steel bar 100 moves downward around the bending position, and the steel bar 100 bends downward.

[0082] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A portable steel bar bending tool, characterized in that: It comprises a clamping assembly for clamping a steel bar (100), and a supporting assembly (3) connected to the clamping assembly and located at the bottom of the clamping assembly; The clamping assembly comprises a clamping end (1) which is in a U-shaped structure and through which a steel bar (100) passes and is clamped, and a force-applying member (2) connected to a side of the clamping end (1) away from an opening of the U-shaped structure; the support assembly (3) is arranged at the bottom of the force-applying member (2).

2. A portable steel bar bending tool according to claim 1, characterized in that: The clamping end (1) comprises two groups of clamping rods (10) arranged in parallel, a connecting rod arranged between the two groups of clamping rods (10) and forming a U-shaped cavity (13), and limiting members (11) respectively arranged at one end of the two groups of clamping rods (10) away from the connecting rod and rotatably matched with the clamping rods (10), the two groups of limiting members (11) being arranged symmetrically and forming a clamping cavity (110) for clamping the steel bar (100) toward one side.

3. A portable steel bar bending tool according to claim 2, characterized in that: The limiting member (11) comprises a rotating shaft (111) coaxially arranged with the clamping rod (10), a limiting plate (112) rotatably matched with the rotating shaft (111), and a rotating limiting member respectively connected to the rotating shaft (111) and the limiting plate (112); two sets of limiting plates (112) are matched with each other at one side close to each other to form a clamping cavity (110) for clamping the steel bar (100).

4. A portable steel bar bending tool according to claim 3, characterized in that: The rotation limiting member comprises a connecting plate (113) installed on a side of the limiting plate (112) close to the U-shaped cavity (13), a fixing plate (114) connected to the rotating shaft (111) and used to limit the two sets of limiting plates (112) from moving toward each other around the axis of the corresponding rotating shaft (111), and a limiting spring (115) used to connect the fixing plate (114) and the connecting plate (113); When the limit spring (115) is in the initial state, the fixing plate (114) and the connecting plate (113) are in abutment with each other at one side.

5. A portable steel bar bending tool according to claim 4, characterized in that: The limiting plate (112) is in a triangular structure; When the limit spring (115) is in the initial state, the bottom edges of the two sets of fixing plates (114) are located on the same plane, and the two sets of limit plates (112) are close to each other on one side to form a clamping cavity (110) with an isosceles trapezoidal structure; wherein the lower bottom of the clamping cavity (110) is coplanar with the bottom edge of the limit plate (112), and the length of the lower bottom is less than the diameter of the steel bar (100).

6. A portable steel bar bending tool according to claim 5, characterized in that: The fixing plate (114) and the connecting plate (113) are close to each other to form a chamber for installing a limit spring (115).

7. A portable steel bar bending tool according to claim 5, characterized in that: A fixing block is provided on the side of the fixing plate (114) and the connecting plate (113) away from the limiting plate (112); and both ends of the limiting spring (115) are connected to the sides of the two groups of fixing blocks close to each other.

8. The portable steel bar bending tool according to claim 6, characterized in that: Grooves are respectively arranged on the sides of the fixing plate (114) and the connecting plate (113) close to each other; two groups of grooves are arranged correspondingly and are used to install chambers for limiting springs (115); and both ends of the limiting spring (115) are respectively connected to the bottom of the grooves.

9. The portable steel bar bending tool according to claim 3, characterized in that: The support assembly (3) comprises a connecting rod (31) connected to the bottom of the force-applying member (2), and a supporting rod (32) telescopically matched with the connecting rod (31); an arc-shaped groove (321) is provided at one end of the supporting rod (32) away from the connecting rod (31).

10. A portable steel bar bending tool according to claim 9, characterized in that: The force applying member (2) comprises a connecting rod whose axis is on a plane formed by the axes of the connecting rod and the limiting rod and one end of which is connected to the connecting rod, and an L-shaped handle connected to the other end of the connecting rod; the connecting rod and the handle are connected to form a Z-shaped structure.

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