Clamp for rod-shaped object

Abstract

The utility model relates to the field of mechanical fixing devices, in particular to a clamp for fixing two rod-shaped objects, which comprises a clamp main body, a sliding pressing sheet mechanism and a torsion cap, two ends of the clamp main body are provided with clamping openings capable of accommodating the rod-shaped objects, the inner side planes of the clamping openings are in sliding connection with the sliding pressing sheet mechanism, and the torsion cap is arranged on the clamp main body. The outer side of the clamping opening is in threaded connection with the torsion cap. Through the design of the large-torque cap and the corresponding pressing piece, the contact area between the large-torque cap and the rod-shaped objects is increased, the two rod-shaped objects can be rapidly fixed and loosened, the structure is simple and reliable, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical fixing device field especially relates to a clamp of fixing two rod-shaped objects. BACKGROUND

[0002] In the prior art, when fixing and connecting rod-shaped objects, crab pincers are generally used. The crab pincers have an opening shape similar to crab pincers, and the two openable pincer arms are used to hold the rod-shaped object. After the rod-shaped object is placed in the pincer opening, the pincer arms are closed and pressed by using a bolt to rotate and press, so that the pincer clamp clamps the rod-shaped object, and the purpose of fastening the rod-shaped object is achieved. When loosening, the pincer opening is loosened by rotating the bolt in the opposite direction, so that the rod-shaped object is separated from the clamp. The bolt for fastening is usually arranged near the connection of the pincer arms.

[0003] A crab pincer is disclosed in Chinese patent document No. 201320803720.2, which includes two clamping arms designed as pincer curved surfaces. The two clamping arms are movably connected at the fulcrum part, and the opposite curved surfaces form a clamping part for clamping the rod-shaped object. When the curved surfaces at the rear part move relative to each other, the clamping arms at the front part are driven to move relative to each other by the fulcrum, thereby achieving the purpose of clamping.

[0004] When the above-mentioned crab pincer clamp is used to clamp, the lever principle is adopted. To increase the clamping force, the power arm must be increased or the power must be increased. The transmission efficiency of the power is related to the ratio of the force arm and the power arm, which inevitably leads to the problem of unstable fixation. When external forces such as wind and vibration act on the object, the traditional crab clamp may loosen, and the stability of the fixed object cannot be ensured. In addition, the traditional crab clamp is usually composed of many parts, which not only leads to a complex structure, but also increases the production cost and assembly difficulty. In addition, due to the structural limitation, the traditional crab clamp cannot achieve the purpose of fixing two rods. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a clamp for fixing two rod-shaped objects, which increases the contact area between the clamp and the rod-shaped objects by using a large torsion cap and a corresponding pressing sheet, realizes quick and firm connection between the two rod-shaped objects, simplifies the operation process, and reduces the production cost.

[0006] The utility model adopts the following technical solutions:

[0007] A rod-shaped object clamp includes a clamp body, a sliding pressing sheet mechanism, and a torsion cap. The two ends of the clamp body are provided with clamping openings capable of accommodating rod-shaped objects. The inner side of the clamping opening is slidably connected with the sliding pressing sheet mechanism, and the outer side of the clamping opening is threadedly connected with the torsion cap.

[0008] Further, the sliding tablet pressing mechanism is a flat cylinder, wherein the flat surface is in sliding connection with the inner side surface of the clamping opening.

[0009] Further, one end of the sliding tablet pressing mechanism is provided with a tablet pressing plate, and the other end is provided with a positioning block.

[0010] On the other hand, the inner wall of the torque cap is provided with internal threads matched with the external threads of the clamping opening.

[0011] Further, the bottom of the internal cavity of the torque cap is provided with a track groove capable of accommodating the positioning block of the sliding tablet pressing mechanism.

[0012] Further, the outer circumferential surface of the torque cap is provided with anti-skid treatment.

[0013] Further, the length of the external threads of the clamping opening is greater than or equal to the length of the internal threads of the torque cap.

[0014] Optionally, the middle part of the clamp body is provided with a groove.

[0015] Further, the clamp body is made of engineering plastic material and is manufactured by injection molding.

[0016] The utility model discloses a large torque cap and the clamping opening of the clamp body cooperate thread movement, promote the horizontal movement of sliding tablet pressing mechanism, with the power of the extrusion of tablet and the clamping opening groove, rotate torque is converted into parallel pressure, increase the contact area with the rod-shaped object, realize the quick firm connection between the rod-shaped object and quick release movement, simple structure, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is the exploded view of the utility model;

[0019] Figure 3 It is the component combination drawing of the utility model;

[0020] Figure 4 It is the perspective view of the utility model.

[0021] Fig. 1 is a clamp body; 2 is a sliding tablet pressing mechanism; 3 is a torque cap; 4 is a tablet pressing plate; 5 is a clamping opening; 6 is an end cover. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below by combining with the drawings and examples. It should be understood that the structural diagram and specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] As Figures 1-4 shown, a rod-shaped object clamp includes a clamp body 1, a sliding pressing plate mechanism 2 and a torque cap 3. The clamp body 1 is cylindrical in shape, and a recess is formed in the middle of the clamp body 1 to facilitate gripping. Each end of the clamp body 1 has a clamping opening 5, and the inner side of the clamping opening 5 extends through the center axis of the clamp body 1 radially and is provided with a recess along the center axis for accommodating a rod-shaped object. The recess is internally provided with anti-skid lines to increase the friction between the rod-shaped object and the clamp body 1. The recess can also be provided with a pressing plate 4, and the surface of the pressing plate 4 that contacts the rod-shaped object is arc-shaped. On the other hand, the inner side surface of the clamping opening 5 is a horizontal plane that cooperates with the flat surface of the sliding pressing plate mechanism 2 to limit the rotation of the sliding pressing plate mechanism 2. The outer circumference of the clamping opening 5 is provided with threads that correspond to the threads of the torque cap 3. The length of the outer thread segment is greater than or equal to the length of the internal thread segment of the torque cap 3, and the size of the outer thread crest of the clamping opening 5 cooperates with the size of the internal thread root of the torque cap 3 to achieve a tight connection between the torque cap 3 and the clamping opening 5. The clamp body 1 can be made of engineering plastic and manufactured by injection molding to ensure its structural strength and dimensional accuracy.

[0024] The outer circumference of the torque cap 3 is provided with anti-skid treatment to form a texture that facilitates manual rotation. The torque cap 3 is hollow inside, and the inner wall of the hollow is provided with internal threads that can be connected to the threads on the outer circumference of the clamping opening 5. A threaded hole is formed in the center of the bottom of the torque cap 3, and the outer threads of a circular end cover 6 are rotationally connected to the threaded hole in the center of the bottom of the torque cap 3. The boss portion of the end cover 6, together with the inner wall of the torque cap 3, forms a track groove that can accommodate the positioning block of the sliding pressing plate mechanism 2.

[0025] The sliding pressing plate mechanism 2 is a flat cylinder, and the part connected to the inner side surface of the clamping opening 5 is a horizontal plane. This horizontal plane part can be inserted into the cavity of the clamping opening 5 along the horizontal plane of the inner side of the clamping opening 5 to achieve a sliding connection of the sliding pressing plate mechanism 2 in the clamping opening 5. The side of the sliding pressing plate mechanism 2 facing the torque cap 3 is provided with a positioning block that is arranged on the cross-sectional arc portion of the sliding pressing plate mechanism 2. The positioning block is placed in the track groove formed by the end cover 6 and the inner wall of the torque cap 3. When the torque cap 3 is rotated, the torque is not transmitted to the sliding pressing plate mechanism 2, so that the sliding pressing plate mechanism 2 is positioned at the bottom of the torque cap 3 without rotating in the clamping opening 5. The other side of the sliding pressing plate mechanism 2 is provided with a pressing plate 4 for contacting the rod-shaped object. After the sliding pressing plate mechanism 2 is inserted into the inner side of the clamping opening 5 and fixed, the positioning block of the sliding pressing plate mechanism 2 is aligned with the track groove at the bottom of the torque cap 3 to achieve positioning of the sliding pressing plate mechanism 2 in the torque cap 3. When the torque cap 3 is rotated, the internal threads of the torque cap 3 cooperate with the external threads of the clamping opening 5 to rotate, pushing the pressing plate 4 of the sliding pressing plate mechanism 2 to move horizontally and contact the rod-shaped object, together with the pressing plate 4 at the bottom of the recess of the clamping opening 5 to compress the rod-shaped object tightly. When the torque cap 3 is rotated in the opposite direction, i.e., the sliding pressing plate mechanism 2 is loosened, the rod-shaped object is released.

[0026] The working principle of the utility model is further illustrated below in combination with the drawings:

[0027] When two rod-shaped objects need to be fixed, for example, an umbrella is fixed on a tripod, the two rod-shaped objects can be placed in the grooves of the clamping jaws 5 at both ends of the clamp body 1, and then the large torque cap 3 is manually rotated, the rotation of the large torque cap 3 causes the clamping jaws 5 to gradually close, the sliding pressure plate mechanism 3 moves relative to the clamping jaws 5, and the pressure plate 4 presses the rod-shaped object until the rod-shaped object is firmly clamped. Because the large torque cap can provide a large torque, the opposite pressure plates on both sides interact and tightly fit on the rod-shaped object, achieving quick and stable fixation. When the rod-shaped object needs to be released, the large torque cap is rotated in the opposite direction, the sliding pressure mechanism is released, and the rod-shaped object can be easily taken out. When the position of the rod-shaped object needs to be adjusted, the torque cap can be slightly loosened, so that the rod-shaped object clamp of the utility model can move up and down along the rod-shaped object on the loosened side or rotate around the rod-shaped object on the loosened side. The entire operation process does not require the use of additional tools, and is simple and convenient.

[0028] The utility model has the following beneficial effects:

[0029] 1. Quick fixation: the utility model can quickly clamp two rod-shaped objects through the design of the large torque cap mechanism, greatly improving work efficiency. For example, when setting up a temporary sun umbrella or tent outdoors, the utility model can quickly fix the umbrella rod or tent rod on the support structure, saving time.

[0030] 2. Firm and stable: the high torque provided by the large torque cap and the anti-slip design between the clamping jaws and the rod-shaped object make the fixation more firm and can effectively resist external interference, ensuring the stability of the fixed object during use.

[0031] 3. Simple structure and low cost: the utility model uses fewer parts, and is more compact and simple than traditional crab clamps. The utility model is produced using engineering plastic materials, reducing material costs, and the simplified structure also reduces assembly costs and production cycle, having a high cost performance.

[0032] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.

Claims

1. A rod clamp comprising a clamp body (1), a sliding tablet mechanism (2) and a torque cap (3), characterized in that, The two ends of the clamp body (1) are provided with a clamping opening (5) capable of accommodating a rod-shaped object, the inner side plane of the clamping opening (5) is in sliding connection with the sliding tablet pressing mechanism (2), and the outer side of the clamping opening (5) is in threaded connection with the torsion cap (3).

2. A rod clamp according to claim 1, wherein The sliding tablet pressing mechanism (2) is a flat cylinder, wherein the flat surface is in sliding connection with the inner side plane of the clamping opening (5).

3. A rod clamp according to claim 1 or 2, wherein One end of the sliding tablet pressing mechanism (2) is provided with a tablet pressing part (4), and the other end is provided with a positioning block.

4. A rod clamp according to claim 1, wherein The inner wall of the torsion cap (3) is provided with internal threads matched with the external threads of the clamping opening (5).

5. A rod clamp according to claim 4, wherein, The bottom of the inner cavity of the torsion cap (3) is provided with a track groove capable of accommodating the positioning block of the sliding tablet pressing mechanism (2).

6. A rod clamp according to claim 5, wherein, The outer circumferential surface of the torsion cap (3) is provided with an anti-skid treatment.

7. A rod clamp according to claim 1 or 4, wherein The length of the external threads of the clamping opening (5) is greater than or equal to the length of the internal threads of the torsion cap (3).

8. A rod clamp according to claim 1, wherein, The middle part of the clamp body (1) is provided with a groove.

9. A rod clamp according to claim 8, wherein, The clamp body (1) is made of engineering plastic material and is manufactured by injection molding.

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