Pipe clamp clamping device

Abstract

The pipe clamp clamping device comprises a pipe clamp, a first lock sleeve and a second lock sleeve, the first lock sleeve and the second lock sleeve are sleeved, a clamping hole is formed in the front end of the pipe clamp, a mounting hole is formed in the rear end of the pipe clamp, a cutting groove is formed in the side wall of the pipe clamp and communicated with the clamping hole, and a connecting part, a transition part, a first conical surface part and a second conical surface part are sequentially arranged on the outer circumferential surface of the pipe clamp. The large end of the second conical surface part is opposite to the large end part of the first conical surface part; the front end of the first lock sleeve center hole is provided with a first taper hole corresponding to the first conical surface part; the first taper hole and the first conical surface part are assembled; the second lock sleeve is provided with a second taper hole corresponding to the second conical surface part, and the second taper hole and the second conical surface part are assembled. The pipe clamp is convenient to lock, acting force is applied to the pipe clamp through the front stress position and the rear stress position, and the clamping speed and the clamping stability of the pipe clamp are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing, and in particular relates to a pipe clamping device. Background Technology

[0002] In machining, pipe clamps are widely used due to their convenient and quick clamping. Currently, the clamping structure of a pipe clamp typically includes: a clamping hole at the front end of the pipe clamp; a groove on the front side wall of the pipe clamp at the corresponding clamping hole position, dividing the front side wall of the pipe clamp into several elastic blocks; a conical structure at the front end of the outer circumference of the pipe clamp; an external thread at the rear end of the conical structure on the outer circumference of the pipe clamp; a conical cylinder corresponding to the conical structure; and a nut corresponding to the external thread. Tightening the nut pushes the conical cylinder forward, causing the conical cylinder to press tightly against the several elastic blocks of the pipe clamp. The elastic blocks then contract inward, clamping and fixing the part with a shaft structure inside the clamping hole.

[0003] Since pipe clamps are typically installed on equipment using a threaded connection structure, the tightening of the nut to clamp the parts will interfere with the threaded installation structure, affecting the stability of the pipe clamp installation or the stability of the clamped parts. Furthermore, the fact that only one position on the collet applies force results in a slow inward contraction of the elastic block to clamp the parts. Utility Model Content

[0004] In view of this, the present invention aims to provide a pipe clamping device to improve the clamping firmness and clamping speed of pipe clamps.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A pipe clamping device, comprising:

[0007] The pipe clamp has a clamping hole at the front end and a mounting hole at the rear end, and the mounting hole and the clamping hole are connected. The pipe clamp has an axially cut groove on its side wall, which penetrates the side wall and is connected to the clamping hole. The front end of the groove extends out of the front end face of the pipe clamp. The outer circumferential surface of the pipe clamp is provided with a connecting part, a transition part, a first conical part and a second conical part in sequence from back to front. The large end of the second conical part and the large end of the first conical part are facing each other.

[0008] The first locking sleeve is axially movably fitted outside the transition part of the pipe clamp. The front end of the center hole of the first locking sleeve is provided with a first tapered hole corresponding to the first tapered part. The first tapered hole and the first tapered part are assembled.

[0009] The second locking sleeve is movably fitted outside the second conical part of the pipe clamp. The second locking sleeve is provided with a second conical hole corresponding to the second conical part, and the second conical hole and the second conical part are assembled.

[0010] The first lock sleeve and the second lock sleeve are connected.

[0011] Furthermore, the mounting hole is a first threaded hole, and the connecting part has 2n grooves in the circumferential direction, or has 2n planar structures milled on it, where n≥1.

[0012] Furthermore, the first locking sleeve is provided with external threads;

[0013] The second locking sleeve has a second threaded hole at its rear end, and the second threaded hole and the second tapered hole are coaxial;

[0014] The external thread of the first locking sleeve and the second threaded hole of the second locking sleeve are connected by threads.

[0015] Furthermore, six planar structures are sequentially arranged in the rear circumferential direction of the outer circumferential surface of the second lock sleeve, so that the cross-sectional shape of the rear end of the second lock sleeve is a regular hexagon.

[0016] Furthermore, a slider is provided protruding from the wall of the central hole of the first lock sleeve, and a sliding groove is provided axially in the transition part, wherein the slider and the sliding groove are slidably assembled.

[0017] Furthermore, four grooves are evenly distributed around the circumference of the groove.

[0018] Compared with the prior art, the pipe clamping device of this utility model has the following advantages:

[0019] This utility model offers convenient locking. The outer circumferential surface of the pipe clamp features a first conical part and a second conical part. The first conical part of the first locking sleeve is assembled with the first conical hole, and the second conical hole and the second conical part of the second locking sleeve are assembled. By applying force to the pipe clamp through two force-bearing positions, the clamping speed and clamping stability of the pipe clamp are improved. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a front view of a pipe clamping device according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a pipe clamping device according to an embodiment of the present utility model;

[0023] Figure 3 This is the front view of the pipe clamp in this embodiment;

[0024] Figure 4 This is a diagram of the internal structure of the pipe clamp in this embodiment;

[0025] Figure 5 This is the left view of the pipe clamp in this embodiment;

[0026] Figure 6 This is a schematic diagram of the first locking sleeve structure in this embodiment;

[0027] Figure 7 This is the right view of the first lock sleeve in this embodiment;

[0028] Figure 8 This is a schematic diagram of the second locking sleeve structure in this embodiment.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Pipe clamp; 101-Connecting part; 102-Transition part; 103-First conical part; 104-Second conical part; 105-Slide groove; 106-Clamping hole; 107-Groove; 108-Mounting hole; 109-Transition hole; 110-Groove; 2-First locking sleeve; 201-Connecting hole; 202-External thread; 203-First conical hole; 204-Slider; 3-Second locking sleeve; 301-Second threaded hole; 302-Second conical hole; 303-Planar structure. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 , Figure 2 As shown, a pipe clamping device includes a pipe clamp 1 and a first locking sleeve 2 and a second locking sleeve 3 of its external movable assembly, the first locking sleeve 2 and the second locking sleeve 3 being connected to each other.

[0033] Pipe clamp mechanism 1 Figure 3 , Figure 4 and Figure 5As shown, the outer circumferential surface of the pipe clamp 1 is sequentially provided with a connecting portion 101, a transition portion 102, a first conical portion 103, and a second conical portion 104 from back to front. The diameter of the connecting portion 101 is smaller than the diameter of the transition portion 102. The large end of the second conical portion 104 is directly opposite the large end of the first conical portion 103. The pipe clamp 1 has a clamping hole 106 at its front end and a mounting hole 108 at its rear end. A transition hole 109 is provided between the mounting hole 108 and the clamping hole 106, connecting them. The mounting hole 108 is a first threaded hole structure for threaded connection with corresponding equipment. The diameter of the clamping hole 106 is smaller than the diameter of the mounting hole 108, and the clamping hole 106 is used to clamp corresponding parts. Four slots 107 are evenly spaced along the circumference of the side wall of the pipe clamp 1. Each slot 107 is axially aligned with the pipe clamp 1, penetrating the side wall of the pipe clamp and communicating with the clamping hole 106. The front end of the slot 107 extends out of the front face of the pipe clamp 1, and the rear end of the slot 107 corresponds to the position of the transition section 102. The side wall of the transition section 102 has a hole penetrating through it at the rear end of the slot 107 to reduce the stress at the rear end of the slot. The four slots 107 divide the front end of the side wall of the pipe clamp 1 into four elastic sections, which clamp corresponding parts.

[0034] The first locking sleeve 2 is axially movable and fitted outside the transition portion 102 of the pipe clamp 1, with a clearance fit between the center hole of the first locking sleeve 2 and the transition portion 102. The structure of the first locking sleeve 2 is as follows: Figure 6 , Figure 7 As shown, the front end of the central hole is provided with a first tapered hole 203 corresponding to the first tapered part 103 of the collet 1, and the front end of the outer circumferential surface of the first locking sleeve 2 is provided with an external thread 202.

[0035] The second locking sleeve 3 is movably fitted outside the second conical part 104 of the pipe clamp 1. The structure of the second locking sleeve 3 is as follows: Figure 8 As shown, a second conical hole 302 is provided at the front end corresponding to the second conical part 104, and a second threaded hole 301 is provided at the rear end corresponding to the external thread 202 of the first locking sleeve 2. The second threaded hole 301 and the second conical hole 302 are connected.

[0036] When clamping the corresponding part, the shaft of the part is first inserted into the clamping hole 106. The external thread 202 of the first locking sleeve 2 and the second threaded hole 301 of the second locking sleeve 3 are threaded together. The first locking sleeve 2 and the second locking sleeve 3 are screwed in, so that the first conical hole 203 and the first conical surface 103 are tightly assembled, and the second conical hole 302 and the second conical surface 104 are tightly assembled. During the screwing process of the first locking sleeve 2 and the second locking sleeve 3, the side wall of the clamp 1 is pressed tightly by the first conical surface 103 and the second conical surface 104 at the front and rear positions, so that the four elastic parts of the clamp 1 are quickly contracted inward, thereby quickly locking and fixing the part.

[0037] In this invention, to facilitate the screwing and fixing of the collet 1 to the corresponding equipment, the connecting part 101 has 2n grooves 110 in the circumferential direction, or has 2n planar structures milled on it, where n≥1. During operation, a wrench can be used in conjunction with the grooves or planar parts to facilitate the rotation of the collet 1 and quickly thread it onto the corresponding equipment.

[0038] In this invention, six planar structures 303 are sequentially arranged along the rear circumferential direction of the outer circumferential surface of the second locking sleeve 3, making the rear cross-sectional shape of the second locking sleeve 3 a regular hexagon. This structure allows for easy and convenient use of a wrench to screw the second locking sleeve 3, enabling it to be quickly threadedly connected to the first locking sleeve 2, thus achieving the connection and fixation of the second locking sleeve 3 and the first locking sleeve 2.

[0039] In this invention, a slider 204 protrudes from the wall of the central hole of the first locking sleeve 2, and a groove 105 is axially formed in the transition portion 102. The slider 204 and the groove 105 are slidably assembled. This structure restricts the degree of freedom of the first locking sleeve 2 in the circumferential direction, allowing the first locking sleeve 2 to move only axially, thereby achieving the locking and fixing of the second locking sleeve 3 and the first locking sleeve 2.

[0040] In this utility model, the front end of the outer circumferential surface of the pipe clamp 1 is provided with a first conical part 103 and a second conical part 104, and the first conical part 103 is provided with a first locking sleeve 2, and the second conical part 104 is provided with a second locking sleeve 3. When clamping parts, the first conical part 103 and the second conical part 104 apply forces at the same time, which improves the clamping speed and stability of this utility model.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe clamp clamping device, characterized by: include: The pipe clamp (1) has a clamping hole (106) at the front end and an installation hole (108) at the rear end. The installation hole (108) and the clamping hole (106) are connected. The pipe clamp (1) has an axial groove (107) on its side wall. The groove (107) penetrates the side wall of the pipe clamp and is connected to the clamping hole (106). The front end of the groove (107) extends out of the front end face of the pipe clamp (1). The outer circumferential surface of the pipe clamp (1) is provided with a connecting part (101), a transition part (102), a first conical part (103) and a second conical part (104) in sequence from back to front. The large end of the second conical part (104) and the large end of the first conical part (103) are directly opposite each other. The first locking sleeve (2) is axially movable and fitted outside the transition part (102) of the pipe clamp (1). The front end of the center hole of the first locking sleeve (2) is provided with a first conical hole (203) corresponding to the first conical part (103). The first conical hole (203) and the first conical part (103) are assembled. The second locking sleeve (3) is movably fitted outside the second conical part (104) of the pipe clamp (1). The second locking sleeve (3) is provided with a second conical hole (302) corresponding to the second conical part (104). The second conical hole (302) is assembled with the second conical part (104). The first lock sleeve (2) and the second lock sleeve (3) are connected.

2. A pipe clamp gripping device according to claim 1, wherein: The mounting hole (108) is a first threaded hole, and the connecting part (101) has 2n grooves (110) in the circumferential direction, or has 2n planar structures milled on it, where n≥1.

3. A pipe clamp gripping device according to claim 1, wherein: The first locking sleeve (2) is provided with an external thread (202); The second locking sleeve (3) has a second threaded hole (301) at its rear end, and the second threaded hole (301) and the second tapered hole (302) are coaxial; The external thread (202) of the first locking sleeve (2) is threadedly connected to the second threaded hole (301) of the second locking sleeve (3).

4. A pipe clamp gripping device according to claim 1, wherein: The second lock sleeve (3) has six planar structures (303) arranged sequentially in the circumferential direction of the rear end of the outer circumferential surface, so that the cross-sectional shape of the rear end of the second lock sleeve (3) is a regular hexagon.

5. A pipe clamp gripping device according to claim 1, wherein: The first locking sleeve (2) has a slider (204) protruding from the center hole wall, and the transition part (102) has an axially formed groove (105). The slider (204) and the groove (105) are slidably assembled.

6. A pipe clamp gripping device according to claim 1, wherein: The groove (107) is evenly provided with 4 grooves in the circumferential direction.

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