Screw tap convenient for increasing effective thread depth

Abstract

The utility model belongs to the technical field of screw taps, and particularly relates to a screw tap convenient for increasing effective thread depth, which comprises a screw tap rod, a knob is screwed on the inner wall of the screw tap rod, a screw rod is fixedly connected on the outer wall of the knob, a connecting sliding block is in threaded connection on the outer wall of the screw rod, and a connecting pore plate is fixedly connected on the outer wall of the connecting sliding block. The outer wall of the connecting hole plate is movably connected with a connecting column, the outer wall of the connecting column is fixedly connected with a telescopic plate slidably connected with the inner wall of the screw tap rod, the outer wall of the telescopic plate is fixedly connected with deepening teeth, a screw tap body is embedded in the bottom end of the screw tap rod, and a connecting groove is formed in the connecting position of the screw tap rod and the screw tap body. By arranging the deepening teeth, the connecting hole plate drives the telescopic plate to slide along the inner wall of the screw tap rod through the connecting column, the telescopic plate slides to drive the deepening teeth to move relative to the screw tap body, the screw tap rod rotates to drive the deepening teeth to rotate, and the deepening teeth rotate to increase the thread depth of a working tapping area.

Description

Technical Field

[0001] The utility model belongs to the technical field of taps, and in particular relates to a tap which is convenient for increasing the effective thread depth. Background Art

[0002] A tap is a tool for processing internal threads. According to its shape, it can be divided into spiral groove taps, blade angle taps, straight groove taps and pipe thread taps. According to the use environment, it can be divided into hand taps and machine taps. According to the specifications, it can be divided into metric, American, and imperial taps. Taps are the most mainstream processing tools used by manufacturing operators when tapping.

[0003] For example, the patent with the publication number CN213614616U discloses a tap that is convenient for increasing the effective thread depth, including a body, a side wall of the body is provided with multiple groups of equidistant tapers, the side of the multiple groups of tapers away from the center point are all flat, the ends of the multiple groups of tapers away from the center point are provided with trapezoidal holes, and the outside of the body is provided with multiple groups of expansion plates, and the ends of the multiple groups of expansion plates close to the center point extend to the inside of the body through the trapezoidal holes on the multiple groups of tapers. In the utility model, the tap that is convenient for increasing the effective thread depth rotates the rotating block clockwise, and the rotating block rotates the rotating rod downward. Because the pressure block is threadedly connected to the wall surface of one side of the multiple groups of threaded cones close to the center point, the pressure block will move the multiple groups of threaded cones along the multiple groups of T-slots to the end away from the center point, and the multiple groups of support rods are also pushed to the end away from the center point. The multiple groups of expansion plates will extend outward, increase the length of the tapers, make the thread depth deeper, and achieve the effect of increasing the thread depth.

[0004] When the existing tap is used, the effective thread depth is relatively shallow, resulting in the thread of the workpiece not meeting the use requirements. In view of this, we propose a tap that is convenient for increasing the effective thread depth. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems and provide a tap which is convenient for increasing the effective thread depth, so as to avoid the problem that the effective thread depth is shallow and the thread of the workpiece does not meet the use requirements.

[0006] In view of this, the utility model provides a tap for increasing the effective thread depth, comprising:

[0007] A tap rod, wherein the inner wall of the tap rod is screwed with a knob, the outer wall of the knob is fixedly connected with a screw, the outer wall of the screw is threadedly connected with a connecting slider, the outer wall of the connecting slider is fixedly connected with a connecting hole plate, the outer wall of the connecting hole plate is movably connected with a connecting column, the outer wall of the connecting column is fixedly connected with a telescopic plate slidably connected to the inner wall of the tap rod, the outer wall of the telescopic plate is fixedly connected with deepening teeth, the bottom end of the tap rod is embedded with a tap body, the connection portion between the tap rod and the tap body is provided with a connecting groove, the top end of the tap body is fixedly connected with a connecting block embedded with the outer wall of the connecting groove, and the outer wall of the tap body is provided with a chip removal groove;

[0008] The guide assembly is located outside the tap rod and is used for guiding the tap body.

[0009] Based on the above structure, the connecting hole plate drives the telescopic plate to slide along the inner wall of the tap rod through the connecting column. The sliding of the telescopic plate drives the deepening teeth and the tap body to move relative to each other. The rotation of the tap rod drives the deepening teeth to rotate. The rotation of the deepening teeth increases the thread depth in the working tapping area.

[0010] Preferably, three groups of connecting hole plates are provided, and the hole grooves of the connecting hole plates are inclined. By setting the connecting hole grooves of the connecting hole plates in an inclined shape, the rotation of the knob drives the connecting slider to slide through the screw rod, and the sliding of the connecting slider drives the three groups of connecting hole plates to slide synchronously, thereby realizing the control operation of the synchronous sliding of the three groups of connecting hole plates.

[0011] Preferably, the telescopic plate forms a telescopic structure with the tap rod through the connecting hole plate and the connecting column. The connecting hole plate drives the telescopic plate to slide along the inner wall of the tap rod through the connecting column. The sliding of the telescopic plate drives the deepening teeth and the tap body to move relative to each other, thereby facilitating the relative telescopic operation of the deepening teeth and the tap body.

[0012] Preferably, the connecting block is in a "Y" shape, and the connecting groove and the connecting block are connected by interference fit. The "Y"-shaped connecting block is provided to help improve the stability of the connection between the tap rod and the tap body.

[0013] Preferably, the guide assembly comprises:

[0014] The sleeve is screwed on the outer wall of the tap rod, and a connecting ring is fixedly connected to the outer wall of the sleeve. A telescopic rod passes through the outer wall of the connecting ring, and a sticking ring is fixedly connected to the bottom end of the telescopic rod. A return spring is fixedly connected to the connecting portion of the sticking ring and the connecting ring. The tap body rotates to perform tapping operations on the working area. At the same time, the movement of the tap rod drives the connecting ring on the outer wall of the sleeve to move synchronously, and the movement of the connecting ring drives the sticking ring and the connecting ring to move relative to each other. By arranging the telescopic rod and the tap rod to be parallel, the tap body can be prevented from tilting when tapping the working area.

[0015] Preferably, three groups of telescopic rods are provided, and the telescopic rods are parallel to the tap rods. By arranging the telescopic rods and the tap rods to be parallel, the tap body is prevented from tilting when tapping the working area.

[0016] Preferably, the sticking ring forms a telescopic structure with the connecting ring through a reset spring and a telescopic rod, the movement of the tap rod drives the connecting ring on the outer wall of the sleeve to move synchronously, and the movement of the connecting ring drives the sticking ring and the connecting ring to move relative to each other.

[0017] The beneficial effects of the utility model are:

[0018] 1. The tap which is convenient for increasing the effective thread depth is provided with a telescopic rod, and the tap body is rotated to perform tapping operation on the working area. At the same time, the movement of the tap rod drives the connecting ring on the outer wall of the sleeve to move synchronously, and the movement of the connecting ring drives the contact ring and the connecting ring to move relative to each other. By arranging the telescopic rod and the tap rod to be parallel, the tap body is prevented from tilting when tapping the working area.

[0019] 2. The tap which is convenient for increasing the effective thread depth is provided with deepening teeth. The connecting hole plate drives the telescopic plate to slide along the inner wall of the tap rod through the connecting column. The sliding of the telescopic plate drives the deepening teeth and the tap body to move relative to each other. The rotation of the tap rod drives the deepening teeth to rotate. The rotation of the deepening teeth increases the thread depth of the working tapping area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the tap rod of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional unfolded structure of the tap rod and the tap body of the utility model;

[0023] Figure 4 It is a schematic diagram of the connecting ring and the sticking ring structure of the utility model.

[0024] The symbols in the figure are:

[0025] 1. Tap rod; 2. Knob; 3. Screw rod; 4. Connecting slider; 5. Connecting hole plate; 6. Connecting column; 7. Telescopic plate; 8. Deepening teeth; 9. Tap body; 10. Connecting groove; 1001. Connecting block; 11. Chip groove; 12. Sleeve; 13. Connecting ring; 14. Telescopic rod; 15. Sticking ring; 16. Reset spring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 - Figure 4 This application is described in further detail.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] The present application embodiment discloses a tap for increasing the effective thread depth, comprising:

[0029] A tap rod 1, a knob 2 is screwed onto the inner wall of the tap rod 1, a screw rod 3 is fixedly connected to the outer wall of the knob 2, a connecting slider 4 is threadedly connected to the outer wall of the screw rod 3, a connecting hole plate 5 is fixedly connected to the outer wall of the connecting hole plate 5, a connecting column 6 is movably connected to the outer wall of the connecting column 6, a telescopic plate 7 slidably connected to the inner wall of the tap rod 1 is fixedly connected to the outer wall of the telescopic plate 7, a deepening tooth 8 is fixedly connected to the outer wall of the telescopic plate 7, a tap body 9 is embedded in the bottom end of the tap rod 1, a connecting groove 10 is provided at the connecting portion between the tap rod 1 and the tap body 9, a connecting block 1001 embedded in the outer wall of the connecting groove 10 is fixedly connected to the top of the tap body 9, and a chip removal groove 11 is provided on the outer wall of the tap body 9;

[0030] The guide assembly is located outside the tap rod 1 and is used for guiding the tap body 9 .

[0031] Based on the above structure, the connecting hole plate 5 drives the telescopic plate 7 to slide along the inner wall of the tap rod 1 through the connecting column 6. The sliding of the telescopic plate 7 drives the deepening teeth 8 and the tap body 9 to move relative to each other. The rotation of the tap rod 1 drives the deepening teeth 8 to rotate. The rotation of the deepening teeth 8 increases the thread depth of the working tapping area.

[0032] In one embodiment, three groups of connecting hole plates 5 are provided, and the hole grooves of the connecting hole plates 5 are inclined.

[0033] In this embodiment, by setting an inclined hole groove of the connecting hole plate 5, the knob 2 rotates through the screw rod 3 to drive the connecting slider 4 to slide, and the sliding of the connecting slider 4 drives the three groups of connecting hole plates 5 to slide synchronously, thereby realizing the control operation of the synchronous sliding of the three groups of connecting hole plates 5.

[0034] In one embodiment, the telescopic plate 7 forms a telescopic structure with the tap rod 1 by connecting the orifice plate 5 and the connecting column 6 .

[0035] In this embodiment, the connecting hole plate 5 drives the telescopic plate 7 to slide along the inner wall of the tap rod 1 through the connecting column 6. The sliding of the telescopic plate 7 drives the deepening teeth 8 and the tap body 9 to move relative to each other, thereby facilitating the relative telescopic operation of the deepening teeth 8 and the tap body 9.

[0036] In one embodiment, the connecting block 1001 is in a "Y" shape, and the connecting groove 10 and the connecting block 1001 are connected by interference fit.

[0037] In this embodiment, the “Y”-shaped connecting block 1001 is provided to improve the stability of the connection between the tap rod 1 and the tap body 9 .

[0038] In one embodiment, the components include:

[0039] The sleeve 12 is screwed onto the outer wall of the tap rod 1, a connecting ring 13 is fixedly connected to the outer wall of the sleeve 12, a telescopic rod 14 passes through the outer wall of the connecting ring 13, a contact ring 15 is fixedly connected to the bottom end of the telescopic rod 14, and a return spring 16 is fixedly connected to the connecting portion between the contact ring 15 and the connecting ring 13.

[0040] In this embodiment, the tap body 9 rotates to perform tapping operation on the working area. At the same time, the tap rod 1 moves, driving the connecting ring 13 on the outer wall of the sleeve 12 to move synchronously. The movement of the connecting ring 13 drives the contact ring 15 to move relative to the connecting ring 13. By arranging the telescopic rod 14 and the tap rod 1 to be parallel, the tap body 9 is prevented from tilting when tapping the working area.

[0041] In one embodiment, three groups of telescopic rods 14 are provided, and the telescopic rods 14 and the tap rods 1 are parallel.

[0042] In this embodiment, the telescopic rod 14 is arranged to be parallel to the tap rod 1 to prevent the tap body 9 from tilting when tapping the working area.

[0043] In one embodiment, the contact ring 15 forms a telescopic structure with the connecting ring 13 through the return spring 16 and the telescopic rod 14 .

[0044] In this embodiment, the movement of the tap rod 1 drives the connecting ring 13 on the outer wall of the sleeve 12 to move synchronously, and the movement of the connecting ring 13 drives the contact ring 15 to move relative to the connecting ring 13 .

[0045] When the tap of this embodiment which is convenient for increasing the effective thread depth is used, first, the worker fits the sticking ring 15 on the working area, and then the worker rotates the tap body 9 through the tap rod 1. The tap body 9 rotates to perform tapping operations on the working area. At the same time, the movement of the tap rod 1 drives the connecting ring 13 on the outer wall of the sleeve 12 to move synchronously. The movement of the connecting ring 13 drives the sticking ring 15 and the connecting ring 13 to move relative to each other. By arranging the telescopic rod 14 to be parallel to the tap rod 1, the tap body 9 is prevented from tilting when tapping the working area.

[0046] Then, the staff performs the relative telescopic operation of the deepening tooth 8 and the tap body 9. The staff turns the knob 2, and the rotation of the knob 2 drives the connecting slider 4 to slide through the screw 3. The sliding of the connecting slider 4 drives the three groups of connecting hole plates 5 to slide synchronously, so that the connecting hole plates 5 drive the telescopic plates 7 to slide along the inner wall of the tap rod 1 through the connecting columns 6, and the sliding of the telescopic plates 7 drives the deepening teeth 8 and the tap body 9 to move relative to each other.

[0047] Finally, the rotation of the tap rod 1 drives the deepening teeth 8 to rotate, and the rotation of the deepening teeth 8 increases the thread depth of the working tapping area.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. 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 preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tap for increasing the effective thread depth, characterized in that: include: A tap rod (1), wherein the inner wall of the tap rod (1) is screwed with a knob (2), the outer wall of the knob (2) is fixedly connected with a screw rod (3), the outer wall of the screw rod (3) is threadedly connected with a connecting slider (4), the outer wall of the connecting slider (4) is fixedly connected with a connecting hole plate (5), the outer wall of the connecting hole plate (5) is movably connected with a connecting column (6), the outer wall of the connecting column (6) is fixedly connected with a telescopic plate (7) slidably connected to the inner wall of the tap rod (1), the outer wall of the telescopic plate (7) is fixedly connected with deepening teeth (8), the bottom end of the tap rod (1) is embedded with a tap body (9), the connection portion between the tap rod (1) and the tap body (9) is provided with a connecting groove (10), the top end of the tap body (9) is fixedly connected with a connecting block (1001) embedded with the outer wall of the connecting groove (10), and the outer wall of the tap body (9) is provided with a chip removal groove (11); A guide assembly is located outside the tap rod (1) and is used for guiding the tap body (9).

2. The tap for increasing the effective thread depth according to claim 1, characterized in that: The connection hole plates (5) are provided in three groups, and the hole grooves of the connection hole plates (5) are inclined.

3. The tap for increasing effective thread depth according to claim 1, characterized in that: The telescopic plate (7) forms a telescopic structure with the tap rod (1) by connecting the orifice plate (5) and the connecting column (6).

4. The tap for increasing effective thread depth according to claim 1, characterized in that: The connecting block (1001) has a "Y" shape, and the connecting groove (10) and the connecting block (1001) are connected in an interference fit manner.

5. The tap for increasing effective thread depth according to claim 1, characterized in that: The guide assembly comprises: The sleeve (12) is screwed onto the outer wall of the tap rod (1), a connecting ring (13) is fixedly connected to the outer wall of the sleeve (12), a telescopic rod (14) passes through the outer wall of the connecting ring (13), a contact ring (15) is fixedly connected to the bottom end of the telescopic rod (14), and a return spring (16) is fixedly connected to the connecting portion between the contact ring (15) and the connecting ring (13).

6. The tap for increasing effective thread depth according to claim 5, characterized in that: The telescopic rods (14) are provided in three groups, and the telescopic rods (14) and the tap rods (1) are parallel.

7. The tap for increasing effective thread depth according to claim 5, characterized in that: The contact ring (15) forms a telescopic structure with the connecting ring (13) through a return spring (16) and a telescopic rod (14).

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