Dual-purpose special sleeve

Abstract

The dual-purpose special sleeve comprises a sleeve body, the sleeve body comprises a protective sleeve, a clamping handle, a first tightening head and a sleeve body, one end of the sleeve body is connected with the first tightening head, the other end of the sleeve body is connected with the clamping handle, the outer portion, close to the first tightening head, of the sleeve body is sleeved with the protective sleeve, and the clamping handle is connected with the protective sleeve. A groove is formed in the barrel body, the groove penetrates through the first tightening head, a telescopic spring, a cylindrical pin and a second tightening head are arranged in the groove, one end of the telescopic spring is connected to the second tightening head through the cylindrical pin, and the cylindrical pin and the second tightening head are driven to move in the groove through stretching and retracting of the telescopic spring. The second tightening head driven by the spring to stretch out and draw back is arranged in the sleeve, the first tightening head and the second tightening head can be used for tightening different screws respectively, the tightening gun and the sleeve do not need to be replaced, use is convenient, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeves, in particular to a special sleeve for dual purposes. Background Art

[0002] The engine is an indispensable part of the car. On the car engine production line, a tightening gun is needed to install various screws. For each type of screw, the corresponding screw sleeve is installed on the tightening gun, and then the screw is placed on the sleeve for installation. When switching different screws, the tightening gun needs to be disassembled and replaced. Installing the corresponding tightening gun and sleeve is cumbersome and inconvenient, resulting in low processing efficiency. Utility Model Content

[0003] In view of this, in order to solve the problems existing in the technical background, the utility model proposes a dual-purpose special sleeve, and the specific technical solution is as follows:

[0004] A dual-purpose special sleeve comprises a sleeve body, wherein the sleeve body comprises a protective sleeve, a clamping handle, a first tightening head and a cylinder, one end of the cylinder is connected to the first tightening head, the other end of the cylinder is connected to the clamping handle, the outer portion of the cylinder close to the first tightening head is covered with a protective sleeve, a groove is formed in the cylinder, the groove passes through the first tightening head, a telescopic spring, a cylindrical pin and a second tightening head are arranged in the groove, one end of the telescopic spring is connected to the second tightening head through the cylindrical pin, and the cylindrical pin and the second tightening head are driven to move in the groove by the telescopic spring.

[0005] Furthermore, a long hole is opened on the side of the cylindrical pin, and a limiting protrusion is provided on the inner wall of the groove. The limiting protrusion is arranged in the groove. Due to the obstruction of the limiting protrusion, the distance that the cylindrical pin moves forward and backward is the length of the long hole.

[0006] Furthermore, when the second tightening head is completely embedded in the groove and flush with the end of the first tightening head, the spring is in a compressed state.

[0007] Furthermore, the first tightening head is a tightening head for a twelve-corner screw, and the second tightening head is a tightening head for a T30 screw.

[0008] Furthermore, the first tightening head is a tightening head for an M6 external hexagonal nut, and the second tightening head is a tightening head for an internal 12-point screw.

[0009] The above technical solution has the following beneficial effects:

[0010] The utility model provides a spring-driven telescopic second tightening head in the sleeve, so that the first tightening head and the second tightening head can respectively tighten different screws without replacing the tightening gun and the sleeve, which is easy to use and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a dual-purpose special sleeve in Example 1 Figure 1 ;

[0012] Figure 2 A schematic diagram of the structure of a dual-purpose special sleeve in Example 1 Figure 2 ;

[0013] Figure 3 It is a side structural schematic diagram of a dual-purpose special sleeve in Example 1;

[0014] Figure 4 A schematic diagram of the structure of a dual-purpose special sleeve in Example 2 Figure 1 ;

[0015] Figure 5 A schematic diagram of the structure of a dual-purpose special sleeve in Example 3 Figure 2 ;

[0016] Figure 6 It is a side structural schematic diagram of a dual-purpose special sleeve structure in Example 4;

[0017] In the figure: 1-protective cover; 2-clamping handle; 3-first tightening head; 4-second tightening head; 5-groove; 6-telescopic spring; 7-cylindrical body; 8-cylindrical pin; 9-limiting protrusion. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Embodiment 1, the following will be combined with the drawings in the embodiment of the utility model to clearly and completely describe the technical scheme in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In this embodiment, refer to Figure 1-3A dual-purpose special sleeve shown in the figure comprises a sleeve body, the sleeve body comprises a protective sleeve 1, a clamping handle 2, a first tightening head 3 and a cylinder 7, one end of the cylinder 7 is connected to the first tightening head 3, the other end of the cylinder 7 is connected to the clamping handle 2, the outer portion of the cylinder 7 close to the first tightening head 3 is covered with a protective sleeve 1, a groove 5 is opened in the cylinder 7, the groove 5 passes through the first tightening head 3, a telescopic spring 6, a cylindrical pin 8 and a second tightening head 4 are arranged in the groove 5, one end of the telescopic spring 6 is connected to the second tightening head 4 through the cylindrical pin 8, the cylindrical pin 8 and the second tightening head 4 are driven to move in the groove 5 by the telescopic movement of the telescopic spring 6, a long hole is opened on the side of the cylindrical pin 8, a limiting protrusion 9 is provided on the inner wall of the groove 5, the limiting protrusion 9 is arranged in the groove 5, due to the obstruction of the limiting protrusion 9, the distance that the cylindrical pin 8 moves back and forth is the length of the long hole, and the second tightening head 4 can be prevented from rotating in the groove 5. When the second tightening head 4 is completely embedded in the groove 5 and flush with the end of the first tightening head 3, the spring is in a compressed state. In this embodiment, the first tightening head 3 is a tightening head for a 12-point internal screw, and the second tightening head 4 is a tightening head for a t30 screw.

[0021] When the tightening gun is used, the clamping handle 2 is clamped and the inner 12-point screw is tightened. The extended second tightening head 4 is compressed and pressed into the groove 5. Figure 2 As shown, it is compressed to be flush with the opening of the groove 5. When tightening the T30 screw, the head of the second tightening head 4 extends into the groove 5 of the T30 screw head. When tightening, the head of the T30 screw contacts the head of the first tightening head 3. At this time, the head of the second tightening head 4 is embedded in the head of the T30 screw. The tightening gun is rotated to tighten the T30 screw.

[0022] Refer to Figure 4-6 As shown, a dual-purpose special sleeve includes a sleeve body, the sleeve body includes a protective sleeve 1, a clamping handle 2, a first tightening head 3 and a cylinder 7, one end of the cylinder 7 is connected to the first tightening head 3, the other end of the cylinder 7 is connected to the clamping handle 2, the outer portion of the cylinder 7 close to the first tightening head 3 is covered with a protective sleeve 1, a groove 5 is opened in the cylinder 7, the groove 5 passes through the first tightening head 3, a telescopic spring 6, a cylindrical pin 8 and a second tightening head 4 are arranged in the groove 5, the telescopic spring One end of 6 is connected to the second tightening head 4 through a cylindrical pin 8, and the cylindrical pin 8 and the second tightening head 4 are driven to move in the groove 5 by the extension and contraction of the telescopic spring 6. A long hole is opened on the side of the cylindrical pin 8, and a limiting protrusion 9 is provided on the inner wall of the groove 5. The limiting protrusion 9 is arranged in the groove 5. Due to the obstruction of the limiting protrusion 9, the distance that the cylindrical pin 8 moves back and forth is the length of the long hole. When the second tightening head 4 is completely embedded in the groove 5 and is flush with the end of the first tightening head 3, the spring is in a compressed state.

[0023] In this embodiment, the first tightening head 3 is a tightening head for an M6 external hexagonal nut, and the second tightening head 4 is a tightening head for an internal 12-point screw. The usage of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

[0024] The two ends of the cylindrical pin 8 in Embodiment 1 and Embodiment 2 are respectively fixedly connected to the second tightening head 4 and the spring to prevent falling off.

[0025] The utility model provides a spring-driven retractable second tightening head 4 in the sleeve, so that the first tightening head 3 and the second tightening head 4 can tighten different screws respectively without replacing the tightening gun and the sleeve, which is easy to use and improves work efficiency.

[0026] The basic principles and main features of the utility model are described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A dual-purpose special sleeve, comprising a sleeve body, the sleeve body comprising a protective sleeve, a clamping handle, a first tightening head and a barrel, one end of the barrel is connected to the first tightening head, the other end of the barrel is connected to the clamping handle, the outer portion of the barrel close to the first tightening head is covered with a protective sleeve, characterized in that: A groove is formed in the cylinder body and passes through the first tightening head. A telescopic spring, a cylindrical pin and a second tightening head are arranged in the groove. One end of the telescopic spring is connected to the second tightening head through the cylindrical pin. The telescopic spring drives the cylindrical pin and the second tightening head to move in the groove through the expansion and contraction of the telescopic spring.

2. A dual-purpose special sleeve according to claim 1, characterized in that: A long hole is opened on the side of the cylindrical pin, and a limiting protrusion is provided on the inner wall of the groove. The limiting protrusion is arranged in the groove. Due to the obstruction of the limiting protrusion, the distance that the cylindrical pin moves forward and backward is the length of the long hole.

3. A dual-purpose special sleeve according to claim 1, characterized in that: When the second tightening head is completely embedded in the groove and flush with the end of the first tightening head, the spring is in a compressed state.

4. A dual-purpose special sleeve according to claim 1 or 3, characterized in that: The first tightening head is a tightening head for a twelve-corner screw, and the second tightening head is a tightening head for a T30 screw.

5. A dual-purpose special sleeve according to claim 1 or 3, characterized in that: The first tightening head is a tightening head of an M6 external hexagonal nut, and the second tightening head is a tightening head of an internal 12-point screw.

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