U-shaped holding clamp

Abstract

The utility model belongs to the technical field of embracing clamps, and particularly relates to a U-shaped embracing clamp which comprises a base, a sliding groove is formed in the base, a bent pipe is connected in the sliding groove in a sliding mode, a two-way screw rod is connected in the bent pipe through threads, and a baffle ring is fixedly connected to the outer side of the bent pipe. The outer side of the bent pipe is connected with a screw ring through threads, the screw ring makes contact with the base, and an extrusion mechanism is arranged on the base. The two-way screw rods and the bent pipes are rotated to do threaded motion, then the two bent pipes slide in the sliding grooves, the distance between the two bent pipes is changed, and therefore steel beams with different widths can be installed and fixed through the device.

Description

Technical Field

[0001] This utility model relates to the field of card-holding technology, specifically a U-shaped card-holding device. Background Technology

[0002] Utility model patent CN209229144U discloses a U-shaped clamp, including a crossbeam. A retaining ring is provided on the outer side of the crossbeam, and a threaded rod is connected to one end of the retaining ring. The threaded rod passes through the crossbeam and has a first threaded seat at its connection point. A lead screw is provided on the inner side of the threaded rod, and the lead screw passes through the crossbeam and has a second threaded seat at its connection point. This device, by using a retaining ring and a crossbeam, allows the U-shaped retaining ring to be sleeved on the top of a steel beam from the top outside. After the crossbeam is fixed to the bottom of the steel beam, the threaded rod is fastened through the first threaded seat, thus defining the position of the crossbeam and the retaining ring. This solves the problem of welding the surface of the steel beam, effectively ensuring the connection strength. Furthermore, it uses simple materials and is more convenient and time-saving compared to welding.

[0003] However, this device is not convenient to fix on beams of different widths during use, and the force applied when pressing and fixing the beam is not easy to adjust. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a U-shaped clamp, which solves the problems that the device is not convenient to fix on beams of different widths during use, and that the force is not easy to adjust when the device is pressing and fixing the beam.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a U-shaped clamp, including a base, a sliding groove inside the base, a bent tube slidably connected inside the sliding groove, a bidirectional screw connected inside the bent tube by a thread, a retaining ring fixedly connected to the outside of the bent tube, a threaded ring connected to the outside of the bent tube by a thread, the threaded ring contacting the base, and a pressing mechanism provided on the base.

[0006] Preferably, a slider is fixedly connected to the lower end of the retaining ring, and the slider is slidably connected to the base. By setting the slider, the friction between the retaining ring and the base is reduced.

[0007] Preferably, the extrusion mechanism includes a screw, which is threadedly connected to the inside of the base. A slide cylinder is slidably connected to the outside of the screw, and a spring is installed inside the slide cylinder. A dovetail block is mounted on the outside of the slide cylinder via a bearing. By rotating the screw and the base in a threaded motion, the spring elastically presses against the slide cylinder, thereby engaging the dovetail block and the slide cylinder to install and fix steel beams of different thicknesses. Furthermore, the extrusion force on the steel beam can be controlled by varying the spring compression.

[0008] Preferably, a sliding pin is fixedly connected to the surface of the screw, and the sliding pin is slidably connected to the slide cylinder. By providing the sliding pin, the movement between the slide cylinder and the screw is limited.

[0009] Preferably, one end of the spring is fixedly connected to the slide cylinder, and the other end of the spring is fixedly connected to the screw. By setting the spring, the slide cylinder is elastically compressed.

[0010] Preferably, a guide rod is fixedly connected to the lower end of the dovetail block, and the guide rod is slidably connected to the base. The guide rod guides the movement of the dovetail block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a rotating bidirectional screw and a bent tube to make a threaded motion, which causes the two bent tubes to slide in the groove. The distance between the two bent tubes changes, allowing the device to install and fix steel beams of different widths.

[0013] 2. This utility model uses the rotation of the screw and the base to make a threaded movement, which in turn causes the spring to elastically press against the slide cylinder, thereby enabling the dovetail block and the slide cylinder to cooperate to install and fix steel beams of different thicknesses. Furthermore, the amount of spring compression can be adjusted to control the magnitude of the compressive force on the steel beam. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A bottom view;

[0016] Figure 3 This utility model Figure 1 A three-dimensional view of a partial structure of a bent pipe;

[0017] Figure 4 This utility model Figure 1 A cross-sectional view of the dovetail block.

[0018] In the diagram: 1. Base; 2. Slide groove; 3. Bend; 4. Double-acting screw; 5. Retaining ring; 6. Slider; 7. Threaded ring; 8. Extrusion mechanism; 81. Screw; 82. Slide cylinder; 83. Sliding pin; 84. Spring; 85. Dovetail block; 86. Guide rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3 A U-shaped clamp includes a base 1, with a groove 2 inside the base 1. A bent tube 3 is slidably connected inside the groove 2. A bidirectional screw 4 is threadedly connected inside the bent tube 3. A retaining ring 5 is fixedly connected to the outside of the bent tube 3. A slider 6 is fixedly connected to the lower end of the retaining ring 5. The slider 6 is slidably connected to the base 1. By setting the slider 6, the friction between the retaining ring 5 and the base 1 is reduced. A threaded ring 7 is threadedly connected to the outside of the bent tube 3. The threaded ring 7 contacts the base 1. A pressing mechanism 8 is provided on the base 1.

[0021] Please see Figure 1 , Figure 4 The extrusion mechanism 8 includes a screw 81. The screw 81 is threadedly connected to the inside of the base 1. A slide cylinder 82 is slidably connected to the outside of the screw 81. A sliding pin 83 is fixedly connected to the surface of the screw 81. The sliding pin 83 and the slide cylinder 82 are slidably connected. By setting the sliding pin 83, the slide cylinder 82 and the screw 81 are limited. A spring 84 is set inside the slide cylinder 82. One end of the spring 84 is fixedly connected to the slide cylinder 82, and the other end of the spring 84 is fixedly connected to the screw 81. By setting the spring 84, the slide cylinder 82 is spring-loaded. The slide cylinder 82 is pressurized, and a dovetail block 85 is installed on the outside of the slide cylinder 82 via a bearing. A guide rod 86 is fixedly connected to the lower end of the dovetail block 85. The guide rod 86 is slidably connected to the base 1. By setting the guide rod 86, the movement of the dovetail block 85 is guided. By rotating the screw 81 and the base 1 to make threaded movement, the spring 84 elastically presses against the slide cylinder 82, thereby making the dovetail block 85 and the slide cylinder 82 cooperate to install and fix steel beams of different thicknesses. The compression force on the steel beam can be controlled by changing the compression amount of the spring 84.

[0022] The specific implementation process of this utility model is as follows: In use, the device is fitted onto the outside of the steel beam, and the bidirectional screw 4 and the bent tube 3 are rotated to make threaded movement, thereby causing the two bent tubes 3 to slide in the slide groove 2. The distance between the two bent tubes 3 changes, so that the device can install and fix steel beams of different widths. Then, the screw 81 is rotated, and the screw 81 rotates and the base 1 makes threaded movement, thereby causing the spring 84 to elastically press against the slide cylinder 82, thereby causing the dovetail block 85 to cooperate with the slide cylinder 82 to install and fix steel beams of different thicknesses. Moreover, the compression of the spring 84 can be controlled by changing the amount of compression on the steel beam.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A U-shaped clamp comprising a base (1), characterized in that: The inside of the base (1) is provided with a sliding groove (2), the inside of the sliding groove (2) is slidely connected with a bend pipe (3), the inside of the bend pipe (3) is threadedly connected with a bidirectional screw rod (4), the outside of the bend pipe (3) is fixedly connected with a blocking ring (5), the outside of the bend pipe (3) is threadedly connected with a screw ring (7), the screw ring (7) contacts with the base (1), and the base (1) is provided with an extrusion mechanism (8).

2. The U-shaped clamp of claim 1, wherein: The lower end of the blocking ring (5) is fixedly connected with a sliding block (6), and the sliding block (6) is slidely connected with the base (1).

3. The U-shaped clamp of claim 1, wherein: The extrusion mechanism (8) comprises a screw rod (81), the inside of the base (1) is threadedly connected with the screw rod (81), the outside of the screw rod (81) is slidely connected with a sliding cylinder (82), the inside of the sliding cylinder (82) is provided with a spring (84), and the outside of the sliding cylinder (82) is mounted with a dovetail block (85) through a bearing.

4. A U-shaped clamp according to claim 3, wherein: The surface of the screw rod (81) is fixedly connected with a sliding pin (83), and the sliding pin (83) is slidely connected with the sliding cylinder (82).

5. The U-shaped clamp of claim 3, wherein: One end of the spring (84) is fixedly connected with the sliding cylinder (82), and the other end of the spring (84) is fixedly connected with the screw rod (81).

6. A U-shaped clamp according to claim 3, wherein: The lower end of the dovetail block (85) is fixedly connected with a guide rod (86), and the guide rod (86) is slidely connected with the base (1).

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