TWM539428U - Pressing screwdriver capable of quickly replacing tool head - Google Patents

Description

Quickly change the presser of the tool head

The invention relates to a hand tool, in particular to a pressing screwdriver which can quickly change the tool head.

A general hand tool such as a screwdriver, the screwdriver includes a grip portion, a tool rod fixed to the front end of the grip portion, and a tool head integrally formed at the front end of the tool rod, the user grips and rotates the grip portion , the tool head can be used to tighten or loosen the screw. However, the existing screws include various styles, such as Phillips screws, slotted screws or Phillips screws, so when you are not sure about the screw type to be operated, the user needs Screwdrivers with a variety of tool heads not only cause inconvenience in carrying, but also consume a lot of carrying space.

Therefore, the relevant industry has developed a new patent case (hereinafter referred to as the reference case) of TW No. M516488 "Press-type hand tool". The reference case is provided with a tool head at the lower end of the main rod body, and the lower end of the main rod body is worn. The upper end of the housing is provided with a plurality of recesses, and the plurality of long bumps are arranged outside the latching member corresponding to the upper end of the main rod body, so that the main rod body and the latching part are The combination is disposed inside the casing, thereby forming a push-type pen-type hand tool capable of replacing the main rod body.

However, in the reference case, when replacing the tool head, the cover body is sequentially taken out from the upper side of the casing, the main rod body is taken out, and then the main rod body, the clamp member and the pressing member provided with another tool head are sequentially loaded. The inside of the casing is disposed, and the cover is clamped on the top of the casing to replace the main body of the different tool heads. The foregoing complicated operation causes the process of replacing the tool head to be inconvenient, so the prior art is There is a need for improvement.

In order to solve the problem that the existing manual has the inconvenience of replacing the tool head, the present invention provides a pressing screwdriver capable of quickly changing the tool head. The novel design is provided in the accommodating space through the pressing component and the magnetic component is disposed in the mounting groove, so that the user can quickly The replacement of the tool head effectively improves the convenience of operation.

The present invention solves the prior art problem of the quick-changeable tool head pressing screwdriver, comprising: a main rod, the main rod is provided with a pressing end and a mounting end, the main rod forming an axial receiving space therein and a mounting slot, the receiving space is in communication with the mounting slot, the receiving space is adjacent to the pressing end, and the mounting slot is adjacent to the mounting end; a pressing component, the pressing component is disposed in the receiving space of the main rod, the pressing The assembly includes a thimble, a return spring, and a pushing member. The ejector pin is axially movably disposed relative to the main rod to the receiving space of the main rod. The return spring is sleeved on the ejector pin and located in the receiving space. And the ejector pin compresses the return spring, the pushing member is sleeved at an end of the thimble close to the pressing end, so that the pushing member can push the ejector pin to move axially relative to the main rod; a magnetic component, the magnetic component is a mounting groove that is annularly and fixed to the main rod; and a tool head that is inserted through the mounting groove of the assembly head and magnetically attracted to the magnetic element.

The above-mentioned quick-changeable pressing head of the tool head, wherein the main rod includes a holding member and an assembly head, the holding member and the assembly head are pivotally connected to each other, so that the assembly head can be vertically bent relative to the holding member .

The above-mentioned pressurizing tool for quickly changing the tool head, wherein one end of the holding member is the pressing end, and the other end of the holding member is a connecting end, and the connecting end of the holding member is axially convexly provided with a connecting protrusion The connecting protrusion is provided with a connecting hole. One end of the assembling head is the mounting end, and the other end of the assembling head is the engaging end. The engaging end of the assembling head is radially convexly provided with an engaging protrusion. The block is provided with an engaging hole, and the main rod includes a shaft core and a nut, and the shaft core passes through the connecting hole of the connecting protrusion and the engaging hole of the engaging protrusion.

The above-mentioned quick-changeable pressing head of the tool head, wherein the main rod includes a sliding sleeve and a displacement spring, the sliding sleeve is sleeved at a joint of the holding member and the assembly head, and the displacement spring is sleeved on the The joint of the gripping member and the assembly head is located inside the sliding sleeve, and the displacement spring abuts the grip member and the sliding sleeve.

The efficacies obtained by the technical means of the present invention are as follows: 1. The present invention is provided with a receiving space in the main rod, the pressing component is disposed in the accommodating space, and a magnetic component is disposed in the mounting groove, and the ejector pin of the pressing component can be Pushing the tool head, when the pushing force of the thimble is greater than the magnetic attraction between the tool head and the magnetic element, separating the tool head from the magnetic element, when the magnetic force of the magnetic element is insufficient to adsorb the tool head, the tool head will be installed from the mounting slot The middle and lower parts allow the tool head to be replaced easily and quickly, and the smoothness and convenience of the user can be improved. 2. Since the main rod includes the shaft core and the nut, the grip member and the assembly head are pivotally connected to each other, and when the tool head requires a large torsional force, the grip member and the assembly head can be In the vertical setting, the operating arm of the present invention is extended, so that the holding member can drive the assembly head to rotate.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the novel content, the following further describes the preferred embodiment as shown in the following figure:

A preferred embodiment of the quick-changeable tool head of the present invention is shown in FIGS. 1 to 4. The quick-change tool head presser includes a main rod 10, a pressing assembly 60, and a magnetic Element 70 and a tool head 80, wherein:

The main rod 10 is a hollow round rod body and includes a gripping member 20, an assembly head 30, a sliding sleeve 40 and a displacement spring 50. The gripping member 20 is a hollow tubular body and is provided with a pressing end. 201, a connecting end 202, an operating groove 21, a receiving groove 22, a positioning hole 23 and a limiting portion 24, the operating groove 21 radially penetrates the wall of the holding member 20 on the pressing end 201, and the The operation groove 21 is an elongated groove extending along the axial direction of the holding member 20. The receiving groove 22 is axially formed on the pressing end 201 of the holding member 20 and is an elongated groove. The positioning hole 23 is axially formed at the connecting end 202 of the holding member 20, and the positioning hole 23 communicates with the receiving groove 22, and the inner diameter of the positioning hole 23 is smaller than the receiving hole. The inner diameter of the slot 22 is radially disposed on the outer wall of the connecting end 202 of the gripping member 20. Preferably, the connecting end 202 of the gripping member 20 is axially convexly connected. The bump 25 has a connecting hole 26 formed therethrough.

The assembly head 30 is coupled to the connecting end 202 of the holding member 20, and the assembly head 30 is provided with an engaging end 301, a mounting end 302, a through hole 31, a mounting groove 32 and an abutting portion 33. The through hole 31 is axially inserted into the engaging end 301 of the assembly head 30 , and the through hole 31 is in communication with the positioning hole 23 of the holding member 20 . The through hole 31 , the positioning hole 23 and the receiving groove 22 . Forming a receiving space, the mounting groove 32 is recessed in the mounting end 302 of the assembly head 30 and communicates with the through hole 31, and the inner diameter of the mounting groove 32 is larger than the inner diameter of the through hole 31. The abutment portion 33 is radially recessed on the outer wall surface of the joint end 301 of the assembly head 30. Preferably, the mounting groove 32 is a hexagonal groove. Further, the joint end 301 of the assembly head 30 is radially convex. The engaging protrusion 34 is disposed with an engaging hole 35, and the main rod 10 includes a shaft core 11 and a nut 12, and the shaft core 11 is provided with a through hole 111, and the through hole 111 and the through hole The hole 31 and the positioning hole 23 are disposed in a straight line and are arranged in a straight line. The shaft core 11 passes through the connecting hole 26 of the connecting protrusion 25 and the engaging hole 35 of the engaging protrusion 34. The lock nut 12 through which the spool core 11, so that the holding member 20 is assembled with the head 30 pivotally connected to each other.

The sliding sleeve 40 is sleeved on the limiting portion 24 of the holding member 20 and the abutting portion 33 of the assembly head 30. The sliding sleeve 40 is a circular tube body, and the inner ring circumferential surface of the sliding sleeve 40 is a radial ring. A spring groove 41 is disposed in the recess, and the displacement spring 50 is sleeved on the limiting portion 24 of the holding member 20 and the abutting portion 33 of the assembly head 30 and located inside the spring groove 41 of the sliding sleeve 40, so that the displacement One end of the position spring 50 abuts against the grip member 20, and the other end of the shift spring 50 abuts against the inside of the sliding sleeve 40.

The pressing assembly 60 is slidably disposed in the receiving space of the main rod 10. The pressing assembly 60 includes a ejector pin 61, a return spring 62, a pushing member 63, and a cover 64. The ejector pin 61 can be opposite to the holding portion The ejector pin 61 is axially movably disposed in the accommodating groove 22 of the holding member 20 and the positioning hole 23, and an end of the ejector pin 61 away from the pressing end 201 is movable to the inside of the mounting groove 32. A plurality of abutting protrusions 611 are disposed on one end of the pressing end 201 of the holding member 20, the return spring 62 is sleeved on the ejector pin 61, and one end of the return spring 62 abuts against the ejector pin 61. The other end of the restoring spring 62 abuts against the wall surface of the connecting end 202 of the holding member 20 , and the pushing member 63 extends through the operating groove 21 of the holding member 20 . And the pushing pin 63 can push the ejector pin 61 to move axially relative to the gripping member 20, and the cover body 64 is disposed on the gripping member 20, and is disposed on the end of the ejector pin 61. The opening of the end 201 is pressed.

The magnetic component 70 is annular and has an outer circumferential surface that is fixed to the inner circumferential surface of the mounting groove 32 of the assembly head 30. The tool head 80 is disposed through the mounting groove 32 of the assembly head 30, preferably The tool head 80 has a working end 81 and a magnetic end 82. The magnetic end 82 has a hexagonal cross section that cooperates with the mounting groove 32, and the magnetic end 82 of the tool head 80 receives the magnetic force. Element 70 is magnetically attracted and does not fall.

As shown in FIG. 3 and FIG. 5, when the tool head 80 is replaced, the user can hold the new type with one hand and press the pusher 63 so that the ejector pin 61 faces the grip member 20 axially. The connecting end 202 moves in a direction, the ejector pin 61 compresses the return spring 62 through its abutting protrusion 611, and the end of the ejector pin 61 away from the pressing end 201 pushes the magnetic end 82 of the tool head 80, and the ejector pin 61 pushes the When the pushing force of the tool head 80 is greater than the magnetic attraction between the magnetic element 70 and the tool head 80, the tool head 80 is separated from the magnetic element 70. When the magnetic force of the magnetic element 70 is insufficient to adsorb the tool head 80 When the tool head 80 is dropped relative to the assembly head 30, after the tool head 80 is dropped relative to the assembly head 30, the user's hand is removed from the pushing member 63, and the tension of the return spring 62 is increased. The pusher 63 is returned to the initial position of FIG. 3, and the assembly head 30 is magnetically attracted to the other tool head 80 through the magnetic component 70 mounted therein, and the other tool head 80 is threaded and fixed to the assembly. The mounting groove 32 of the head 30 is complicated and difficult to replace the tool head compared to the prior reference. Operation, the present novel permeable design and the pressing component 60 of the magnetic member 70 can be simple and rapid replacement of the tool head 80, so that users will be able to enhance the smoothness and ease of operation.

In addition, as shown in FIG. 6 , since the main pole 10 includes the shaft core 11 and the nut 12 , the gripping member 20 and the assembly head 30 are pivotally connected to each other, so referring to FIG. 3 , when the tool head 80 is required When the torque is large, the sliding sleeve 40 can be pushed relative to the holding member 20 toward the pressing end 201, so that the sleeve 40 compresses the displacement spring 50, and the holding member 20 and the assembly head 30 are When the vertical setting is performed, the operating arm of the present invention is extended, so that the holding member 20 can drive the assembly head 30 to rotate.

10‧‧‧ main pole
11‧‧‧Axis core
111‧‧‧through hole
12‧‧‧ nuts
20‧‧‧ Holding parts
201‧‧‧ Pressing end
202‧‧‧link
21‧‧‧Operation ditch
22‧‧‧ accommodating slots
23‧‧‧Positioning holes
24‧‧‧Limited
25‧‧‧Link bumps
26‧‧‧Link hole
30‧‧‧Assembled head
301‧‧‧ joint end
302‧‧‧Installation side
31‧‧‧With holes
32‧‧‧Installation slot
33‧‧‧Abutment
34‧‧‧ Bonding bumps
35‧‧‧Join hole
40‧‧‧Sleeve
41‧‧‧Spring slot
50‧‧‧Shift spring
60‧‧‧ Pressing components
61‧‧‧ thimble
611‧‧‧Resist the convex
62‧‧‧Return spring
63‧‧‧Parts
64‧‧‧ Cover
70‧‧‧Magnetic components
80‧‧‧Tool head
81‧‧‧Working end
82‧‧‧magnetic end

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an external perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of the preferred embodiment of the present invention. Figure 3 is a cross-sectional side view of a preferred embodiment of the present invention. Figure 4 is a perspective, cross-sectional view of the preferred embodiment of the present invention. Figure 5 is a cross-sectional side view of the operation of the preferred embodiment of the present invention. Figure 6 is a perspective view showing the operation of the preferred embodiment of the present invention.

10‧‧‧ main pole

11‧‧‧Axis core

111‧‧‧through hole

12‧‧‧ nuts

20‧‧‧ Holding parts

201‧‧‧ Pressing end

202‧‧‧link

21‧‧‧Operation ditch

24‧‧‧Limited

25‧‧‧Link bumps

26‧‧‧Link hole

30‧‧‧Assembled head

301‧‧‧ joint end

302‧‧‧Installation side

31‧‧‧With holes

32‧‧‧Installation slot

33‧‧‧Abutment

34‧‧‧ Bonding bumps

35‧‧‧Join hole

40‧‧‧Sleeve

41‧‧‧Spring slot

50‧‧‧Shift spring

60‧‧‧ Pressing components

61‧‧‧ thimble

611‧‧‧Resist the convex

62‧‧‧Return spring

63‧‧‧Parts

64‧‧‧ Cover

70‧‧‧Magnetic components

80‧‧‧Tool head

81‧‧‧Working end

82‧‧‧magnetic end

Claims (4)

A presser capable of quickly changing a tool head, comprising: a main rod having a pressing end and a mounting end, the main rod forming an axial receiving space and a mounting groove, the receiving space and the receiving space The pressing slot is adjacent to the pressing end, and the mounting slot is adjacent to the mounting end; a pressing component is disposed in the receiving space of the main rod, the pressing component includes a thimble and a return spring And a pushing member, the ejector pin is axially movably disposed in the receiving space of the main rod, the return spring is sleeved on the thimble and located in the receiving space, and the ejector pin compresses the return spring The pushing member is sleeved at an end of the thimble close to the pressing end, so that the pushing member can push the ejector pin to move axially relative to the main rod; a magnetic element, the magnetic element is annular and fixed to the main rod a mounting slot; and a tool head that is threaded through the mounting slot of the assembly head and magnetically attracted to the magnetic element. The presser for quickly changing a tool head according to claim 1, wherein the main rod includes a grip member and an assembly head, the grip member and the assembly head are pivotally connected to each other, so that the assembly head can be opposite to the grip The pieces are bent vertically. The pressing starter of the tool head according to claim 2, wherein one end of the holding member is the pressing end, and the other end of the holding member is a connecting end, and the connecting end of the holding member is axially convex. A connecting protrusion is disposed, the connecting protrusion is provided with a connecting hole, one end of the assembling head is the mounting end, and the other end of the assembling head is the engaging end, and the engaging end of the assembling head is convexly convexly provided with a joint convex And the main rod includes a shaft core and a nut, and the shaft core passes through the connecting hole of the connecting protrusion and the engaging hole of the engaging protrusion. The quick-replaceable pressing head of the tool head according to claim 3, wherein the main rod includes a sliding sleeve and a displacement spring, the sliding sleeve is sleeved at a joint of the holding member and the assembly head, and the movement is The position spring is sleeved at the joint of the grip member and the assembly head and is located inside the sliding sleeve, and the displacement spring abuts the grip member and the sliding sleeve.