Sleeve fixing clamp and electric wrench

Abstract

The utility model discloses a sleeve fixing clamp and an electric wrench, and belongs to the technical field of part machining, the sleeve fixing clamp comprises a mounting part and a plurality of clamping rods, a mounting hole is formed in the middle of the mounting part, and the output end of the electric wrench can be coaxially mounted in the mounting hole and drives the mounting part to rotate around the axis of the mounting part; the multiple clamping rods are fixedly connected to the periphery of the mounting part, the multiple clamping rods are arranged at intervals in the circumferential direction of the mounting part and jointly define a clamping space, the clamping space and the mounting hole are coaxially arranged, the inner diameter of the clamping space is gradually reduced in the axial direction of the clamping space from outside to inside, and a to-be-mounted sleeve can stretch into and be clamped in the clamping space. The electric wrench comprises a main machine body and the sleeve fixing clamp, the sleeve fixing clamp can be matched with to-be-mounted sleeves with different outer diameters, efficient and accurate mounting is achieved through the electric wrench, and the mounting efficiency and precision of the joints of the reinforcement cage and the to-be-mounted sleeves are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to part processing technical field especially, a sleeve fixing clamp and electric wrench. BACKGROUND

[0002] In the pile foundation construction of building engineering, the pile foundation reinforcement cage is generally composed of longitudinal reinforcement and transverse stirrup by binding or welding, which is used for enhancing the bearing capacity and shear performance of the pile foundation, ensuring that the weight of the upper structure of the building can be effectively transmitted to the foundation, and protecting the long-term stability and safety of the building structure.

[0003] Due to the construction site conditions and transportation and other factors, the reinforcement cage usually needs to be processed and manufactured in sections according to the drawings. After processing, first, thread the sleeve on the reinforcement cage joint, and then screw the sleeve on the reinforcement cage joint, so as to realize stable and reliable connection between the segmented reinforcement cages.

[0004] However, the current sleeve installation process of the reinforcement cage joint part generally relies on manual operation. The operator needs to manually screw the sleeve to the threaded reinforcement cage joint, which is tedious and not only consumes manpower but also has extremely low installation efficiency, increasing construction cost and prolonging construction period, which is difficult to meet the efficient construction needs of the project. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a sleeve fixing clamp and electric wrench to solve the technical problem of low efficiency of manual screwing and installing the sleeve in the prior art.

[0006] According to the above idea, the technical scheme adopted by the utility model is:

[0007] On the one hand, the utility model provides a sleeve fixing clamp applied to an electric wrench, which comprises:

[0008] An installation part, a mounting hole is formed in the middle of the installation part, and the output end of the electric wrench can be coaxially installed in the mounting hole and drive the installation part to rotate around its own axis;

[0009] A plurality of clamping rods are fixedly connected to the outer periphery of the installation part, and the plurality of clamping rods are arranged at intervals along the circumference of the installation part to jointly form a clamping space, the clamping space is coaxially arranged with the mounting hole, the inner diameter of the clamping space gradually decreases along its own axis from outside to inside, and the sleeve to be installed can be inserted into and clamped in the clamping space.

[0010] As a preferred, the clamping rod is provided with three, and the included angle between the two adjacent clamping rods is 120 degrees.

[0011] As a preferred, the clamping rod is in a cylindrical shape.

[0012] As preferred, the clamping rods extend outwardly and obliquely along their own axes in a direction away from the mounting hole.

[0013] As preferred, the clamping rods are welded to the mounting portion, and a reinforcing crossbar is arranged between two adjacent clamping rods.

[0014] As preferred, the clamping rods and / or the reinforcing crossbar are provided with a plurality of annular protrusions on their outer periphery.

[0015] As preferred, the clamping rods located at the part of the clamping space are provided with flexible pads.

[0016] As preferred, the radial section of the mounting hole is a regular hexagon.

[0017] As preferred, the mounting portion comprises a support body and movable pieces, the clamping rods are arranged on the outer periphery of the support body, the movable pieces are detachably connected to the support body, the mounting holes are arranged on the movable pieces, a plurality of movable pieces are arranged, the sizes and shapes of the mounting holes of different movable pieces are different, and the support body can selectively connect any movable piece.

[0018] On the other hand, the utility model also provides a kind of electric wrench, including main body and above sleeve fixing clamp, the main body includes rotary joint and gripping handle, the rotary joint can be inserted and coaxially assembled in the mounting hole as the output end, and the axis of the gripping handle and the axis of the rotary joint are vertically arranged.

[0019] The utility model has the advantages of:

[0020] The sleeve fixing clamp provided by the utility model has the mounting hole arranged in the middle of the mounting portion, so that the output end of the electric wrench can be coaxially mounted in the mounting hole, to enable the mounting portion to be rotated around its own axis by the electric wrench. The plurality of clamping rods are arranged in a circumferential interval along the outer periphery of the mounting portion to form a clamping space, and the inner diameter of the clamping space is designed to taper axially from the outside to the inside, so that the to-be-mounted sleeves with different outer diameters can be automatically positioned in the corresponding clamping positions when they are inserted into the clamping space according to their size differences. Specifically, the to-be-mounted sleeve with a larger outer diameter contacts the inner wall of the clamping rod earlier in the insertion process and is clamped in the area close to the entrance of the clamping space due to the restriction of the tapered structure; the to-be-mounted sleeve with a smaller outer diameter can continue to penetrate axially until the inner wall of the clamping rod matches the outer diameter of the to-be-mounted sleeve to form a clamping, thereby improving the adaptability of the sleeve fixing clamp.

[0021] In use of the sleeve fixing clamp, first, the output end of the electric wrench is coaxially installed in the mounting hole in the middle of the mounting portion, power connection is realized. Then, the to-be-installed sleeve is aligned and extended into the clamping space until the to-be-installed sleeve is clamped in the clamping space. After that, the electric wrench is turned on, the output end drives the mounting portion to rotate around the axis thereof, and then the clamped to-be-installed sleeve is synchronously rotated through the clamping rod, so that the to-be-installed sleeve is efficiently and stably screwed to the steel bar cage joint, and the installation operation of the to-be-installed sleeve is completed. In summary, the sleeve fixing clamp can adapt to to-be-installed sleeves with different outer diameters, and efficient and accurate installation is realized with the help of the electric wrench, and the installation efficiency and accuracy of the to-be-installed sleeve at the steel bar cage joint are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the sleeve fixing clamp provided by the embodiment one of the utility model.

[0023] In the drawings:

[0024] 1, mounting portion; 11, mounting hole; 2, clamping rod; 21, clamping space. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation on the utility model.

[0026] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the utility model, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments.

[0029] Embodiment one

[0030] The sleeve fixing clamp provided by the utility model is applied to an electric wrench, can realize clamping and fixing effect of a sleeve to be installed, and can efficiently install the sleeve to be installed at a joint of a steel reinforcement cage through cooperation with the electric wrench.

[0031] Referring to Figure 1 The sleeve fixing clamp provided by the utility model comprises a mounting portion 1 and a plurality of clamping rods 2. The mounting portion 1 is provided with a mounting hole 11 in the middle portion, and the output end of the electric wrench can be coaxially mounted in the mounting hole 11 and drive the mounting portion 1 to rotate around the axis thereof. The plurality of clamping rods 2 are fixedly connected to the outer periphery of the mounting portion 1, are arranged in a circumferential direction of the mounting portion 1 at intervals, jointly surround to form a clamping space 21, and are coaxially arranged with the mounting hole 11. The inner diameter of the clamping space 21 gradually decreases along the axis thereof from the outside to the inside, and the sleeve to be installed can be inserted into and clamped in the clamping space 21.

[0032] The sleeve fixing clamp provided by the utility model is provided with the mounting hole 11 in the middle portion of the mounting portion 1, so that the output end of the electric wrench can be coaxially mounted in the mounting hole 11, thereby enabling the electric wrench to drive the mounting portion 1 to rotate around the axis thereof. The plurality of clamping rods 2 are arranged in a circumferential direction of the outer periphery of the mounting portion 1 at intervals to form the clamping space 21. The clamping space 21 is designed to have an inner diameter that gradually decreases along the axis thereof from the outside to the inside, so that the sleeve to be installed with different outer diameters can be automatically positioned at the corresponding clamping position when being inserted into the clamping space 21 according to the size difference thereof. Specifically, the sleeve to be installed with a larger outer diameter contacts the inner wall of the clamping rod 2 earlier in the process of being inserted, is clamped in the region close to the entrance of the clamping space 21 due to the limitation of the gradually decreasing structure, and the sleeve to be installed with a smaller outer diameter can continue to penetrate along the axis until the inner wall of the clamping rod 2 matches the outer diameter of the sleeve to be installed to form clamping, thereby improving the adaptability of the sleeve fixing clamp.

[0033] In use of the sleeve fixing clamp, the output end of the electric wrench is first coaxially mounted in the mounting hole 11 in the middle portion of the mounting portion 1 to realize power connection. Then, the sleeve to be installed is aligned and inserted into the clamping space 21 until the sleeve to be installed is clamped in the clamping space 21. After that, the electric wrench is turned on, the output end of the electric wrench drives the mounting portion 1 to rotate around the axis thereof, and the clamping rod 2 drives the clamped sleeve to be installed to rotate synchronously, thereby efficiently and stably screwing the sleeve to be installed to the joint of the steel reinforcement cage, and completing the installation operation of the sleeve to be installed. In summary, the sleeve fixing clamp can adapt to the sleeve to be installed with different outer diameters, realizes efficient and accurate installation with the help of the electric wrench, and improves the installation efficiency and accuracy of the joint of the steel reinforcement cage and the sleeve to be installed.

[0034] The specific structure of the sleeve fixing clamp will be described below.

[0035] The mounting portion 1 is in a cylindrical structure, and an installation hole 11 matching the output end of the electric wrench is provided in the axial direction. The installation hole 11 is used to connect and fix the output end of the electric wrench.

[0036] Specifically, the radial section of the installation hole 11 is a regular hexagon, which is matched with the regular hexagonal shape of the output end of the electric wrench, so that the mounting portion 1 and the output end of the electric wrench can be tightly fitted, and the stability of the connection between them is enhanced. When the mounting portion 1 is rotated by the electric wrench, the connection structure of the regular hexagon can effectively prevent the mounting portion 1 and the output end of the electric wrench from rotating relative to each other, ensuring the efficiency and accuracy of power transmission.

[0037] In other embodiments, the specific shape of the installation hole 11 can be adjusted according to the structure of the output end of the electric wrench. The installation hole 11 can be circular, square or irregular, etc., which is not limited here.

[0038] It is worth noting that if the shape of the installation hole 11 is circular, in order to prevent the inner wall of the installation hole 11 from rotating when the output end rotates without a force point, causing the output end to rotate independently in the installation hole 11 and unable to drive the mounting portion 1 to rotate synchronously, resulting in relative rotation between the mounting portion 1 and the output end of the electric wrench, therefore, when the shape of the installation hole 11 is circular, the output end is threadedly connected with the installation hole 11 to ensure that they can rotate synchronously.

[0039] In addition, since the shapes and sizes of the output ends of different electric wrenches are different, in order to improve the adaptability of the mounting portion 1, the mounting portion 1 includes a support body and a movable piece. The clamping rod 2 is arranged on the outer periphery of the support body, and the movable piece is detachably connected with the support body. The installation hole 11 is provided on the movable piece, and the movable piece is provided with a plurality of installation holes 11 with different sizes and shapes. The support body can selectively connect any movable piece. Therefore, in actual use, the operator can connect the support body with the movable piece corresponding to the installation hole 11 according to the existing output end of the electric wrench, and then connect the output end of the electric wrench with the installation hole 11, so that the entire clamp does not need to be specially customized for different electric wrenches, reducing the use cost and production cycle. Moreover, the detachable design makes it only need to replace the corresponding parts when the movable piece or the support body is damaged, improving the maintenance convenience and service life of the clamp, and improving the adaptability and practicality of the sleeve fixing clamp in actual application.

[0040] The sizes and shapes of the installation holes 11 provided on different movable pieces can be adjusted according to actual needs, which is not described here.

[0041] The plurality of clamping rods 2 are arranged in a circumferential direction of the mounting portion 1 and collectively surround to form a clamping space 21 for clamping and fixing the sleeve to be installed.

[0042] Specifically, three clamping rods 2 are provided, and the included angle between two adjacent clamping rods 2 is 120 degrees. When the sleeve to be installed is clamped into the clamping space 21, the three clamping rods 2 can give the sleeve to be installed balanced force from different directions, so as to ensure that the sleeve to be installed does not deviate or shake due to uneven force during installation, thereby improving the precision and stability of the installation of the sleeve to be installed. At the same time, the design of the three clamping rods 2 reduces the use of materials and the complexity of the manufacturing process compared to a larger number of clamping rods 2, thereby reducing production costs, under the premise of ensuring reliable clamping of the sleeve to be installed.

[0043] Preferably, the clamping rod 2 is in a cylindrical shape. The clamping rod 2 in a cylindrical shape is more uniform in force in all directions, which ensures the stability of the sleeve installation when clamping the sleeve, and at the same time, the cylindrical clamping rod 2 is relatively simple in manufacturing process and is easy to process and form, which is conducive to reducing production costs and improving production efficiency.

[0044] More specifically, the clamping rod 2 extends outwardly in the direction away from the mounting hole 11 along the axial direction of the clamping rod 2, so that the inner diameter of the clamping space 21 formed by the clamping rod 2 gradually decreases from the outside to the inside, so as to adapt to different outer diameters of the sleeve to be installed and enhance the versatility of the clamp.

[0045] It can be understood that in other embodiments, the clamping rod 2 can also be provided with two, four, five, etc., and the shape of the clamping rod 2 can be plate-shaped, block-shaped, etc. The specific implementation form of the clamping rod 2 is not limited here, as long as the above-mentioned effects can be achieved.

[0046] Preferably, the clamping rod 2 is welded to the mounting portion 1, so that the connection strength between the clamping rod 2 and the mounting portion 1 is high, the clamping rod 2 is prevented from falling off from the mounting portion 1, and the reliability and stability of the overall structure of the sleeve fixing clamp are improved. A reinforcing cross rod is arranged between two adjacent clamping rods 2, which further enhances the stability of the clamping space 21 and prevents the clamping rod 2 from deforming due to excessive force. At the same time, the arrangement of the clamping cross rod also increases the contact area between the sleeve to be installed and the clamping space 21, thereby improving the stability when the sleeve to be installed is clamped.

[0047] Further, the clamping rod 2 and / or the outer periphery of the reinforcing crossbar is provided with a plurality of annular protrusions. When the to-be-mounted sleeve is clamped into the clamping space 21, the annular protrusions can increase the friction between the clamping rod 2 or the reinforcing crossbar and the inner wall of the to-be-mounted sleeve. The increase in friction enables the clamping space 21 to more firmly hold the to-be-mounted sleeve, so that the to-be-mounted sleeve is not easily slipped off the clamping rod 2 even if a larger resistance or vibration is encountered during the screwing process, further improving the stability and reliability during the installation of the to-be-mounted sleeve.

[0048] In order to reduce costs and improve economic benefits, in the embodiment, the clamping rod 2 and the reinforcing crossbar are both selected from existing threaded steel bars, which are low in cost and easy to obtain.

[0049] In other embodiments, the clamping rod 2 located in part of the clamping space 21 is provided with a flexible pad. The flexible pad can increase the friction between the clamping rod 2 and the to-be-mounted sleeve, so that the clamp holds the to-be-mounted sleeve more firmly, and the to-be-mounted sleeve is not easily slipped even if a larger resistance is encountered during the screwing process, ensuring the stability and reliability during the installation process. In addition, the flexible pad can play a buffering role, avoiding the direct hard contact of the clamping rod 2 with the to-be-mounted sleeve, protecting the surface of the to-be-mounted sleeve from being scratched or damaged, and reducing wear caused by rigid contact, thereby prolonging the service life of the to-be-mounted sleeve.

[0050] The flexible pad can be selected from rubber pads, silica gel pads, or sponge pads, and the like, which will not be described here.

[0051] Embodiment two

[0052] The utility model embodiment further provides a kind of electric wrench, including main body and the sleeve fixing clamp provided in embodiment one, and the main body includes rotary joint and gripping handle, rotary joint can be inserted as output end and coaxially assembled in mounting hole 11, and the axis of gripping handle and the axis of rotary joint are vertically arranged.Combining the sleeve fixing clamp in embodiment one with main body, so that electric wrench has efficient sleeve installation capacity.Rotary joint of main body as output end can be inserted and coaxially assembled in the mounting hole 11 of sleeve fixing clamp, so that the rotary power of rotary joint can be transmitted to sleeve fixing clamp, and then drive to-be-mounted sleeve to rotate, to assemble to-be-mounted sleeve at reinforcement cage joint.The axis of gripping handle and the axis of rotary joint are vertically arranged, in line with the principle of ergonomics, when operating personnel grips handle, hand force direction and rotary direction of rotary joint are perpendicular to each other, so that operating personnel can more naturally, comfortably exert force, effectively reduce hand fatigue in the operation process, improve the convenience and stability of operation.

[0053] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sleeve fixing clamp, applied to an electric wrench, characterized in that, The sleeve fixing clamp includes: The mounting part (1) has a mounting hole (11) in the middle. The output end of the electric wrench can be coaxially mounted in the mounting hole (11) and drive the mounting part (1) to rotate around its own axis. Multiple clamping rods (2) are fixedly connected to the outer periphery of the mounting part (1). The multiple clamping rods (2) are arranged at intervals along the circumference of the mounting part (1) to form a clamping space (21). The clamping space (21) is coaxially arranged with the mounting hole (11). The inner diameter of the clamping space (21) gradually decreases from the outside to the inside along its own axial direction. The sleeve to be installed can be inserted into and engaged in the clamping space (21).

2. The sleeve fixing clamp according to claim 1, characterized in that, The clamping rods (2) are provided in three parts, and the included angle between two adjacent clamping rods (2) is 120 degrees.

3. The sleeve fixing clamp according to claim 1, characterized in that, The clamping rod (2) is cylindrical.

4. The sleeve fixing clamp according to claim 3, characterized in that, The clamping rod (2) extends outward along its own axis in a direction away from the mounting hole (11).

5. The sleeve fixing clamp according to claim 1, characterized in that, The clamping rod (2) is welded to the mounting part (1), and a reinforcing crossbar is provided between two adjacent clamping rods (2).

6. The sleeve fixing clamp according to claim 5, characterized in that, The clamping rod (2) and / or the reinforcing crossbar are provided with a plurality of annular protrusions on their outer periphery.

7. The sleeve fixing clamp according to claim 1, characterized in that, The clamping rod (2) located in the clamping space (21) is provided with a flexible pad.

8. The sleeve fixing clamp according to claim 1, characterized in that, The radial cross-section of the mounting hole (11) is a regular hexagon.

9. The sleeve fixing clamp according to claim 1, characterized in that, The mounting part (1) includes a support body and a movable part. The clamping rod (2) is disposed on the outer periphery of the support body. The movable part is detachably connected to the support body. The movable part is provided with the mounting hole (11). There are multiple movable parts. The size and shape of the mounting hole (11) of different movable parts are different. The support body can selectively connect any of the movable parts.

10. An electric wrench, characterized in that, The device includes a main body and a sleeve fixing clamp as described in any one of claims 1-9. The main body includes a rotary joint and a grip handle. The rotary joint, as the output end, can be inserted into and coaxially assembled with the mounting hole (11). The axis of the grip handle is perpendicular to the axis of the rotary joint.

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