CN210550763U

CN210550763U - Screwdriver

Info

Publication number: CN210550763U
Application number: CN201921165486.9U
Authority: CN
Inventors: 张桂平
Original assignee: Wenzhou Shuntai Hardware Tools Co Ltd
Current assignee: Wenzhou Shuntai Hardware Tools Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-19
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to a screwdriver, which comprises a screwdriver handle, a screwdriver rod and a screwdriver head connected with the screwdriver rod, wherein the screwdriver head comprises a straight screwdriver head and a cross screwdriver head which are respectively arranged at the two ends of the screwdriver rod, the screwdriver handle is arranged in a hollow way, the screwdriver rod is arranged in a telescopic way, one end of the screwdriver handle is provided with a first containing cavity for containing the screwdriver rod, the other end of the screwdriver handle is provided with a second containing cavity for containing the screwdriver head, the straight screwdriver head and the cross screwdriver head both comprise a screwdriver head part, with tool bit portion fixed connection's head rod and with head rod fixed connection's second connecting rod, all be provided with female thread structure I on first appearance chamber and the second appearance chamber, be provided with the external screw thread structure I with female thread structure I looks adaptation on the head rod, all be provided with external screw thread structure II on the outer wall at cutter arbor both ends, be provided with the internal screw thread structure II with external screw thread structure II matched with on the second connecting rod. The utility model discloses technical scheme has simple structure, convenient to carry, the technological effect of removable tool bit.

Description

Screwdriver

Technical Field

The utility model belongs to the technical field of hardware component technique and specifically relates to a screwdriver.

Background

A screwdriver is a tool used to turn a screw into place and typically has a thin wedge shaped head that is insertable into a slot or recess in the head of the screw.

Common screwdrivers in daily life are mainly a straight screwdriver and a cross screwdriver. The existing screwdriver generally comprises a screwdriver handle, a screwdriver rod connected with the screwdriver handle and a handle connected with the screwdriver rod. Chinese patent document CN203438135U discloses a screwdriver, including a screwdriver rod and a columnar screwdriver handle, the one end of screwdriver rod has a word tool bit, and the other end tip has a cross tool bit, a spliced eye has been seted up along the axial to the tip central point of screwdriver handle, the one end of screwdriver rod slides and pegs graft in the spliced eye, and the relative screwdriver handle circumference of screwdriver rod is fixed, be equipped with the setting element that can fix the screwdriver rod between screwdriver handle and the screwdriver rod. The screwdriver is provided with the double tool bits, and the force application is convenient when in use.

The straight-line-shaped tool bit and the cross-shaped tool bit of the screwdriver are fixedly connected with the tool bit, and the tool bit cannot be replaced as required after any tool bit is damaged. In addition, the screwdriver head is mostly made of metal, and the screwdriver head is exposed outside, so that the screwdriver is dangerous, not only is not easy to carry, but also increases the safety problem when not in use.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model provides a simple structure, convenient to carry, removable tool bit's screwdriver.

In order to achieve the above purpose, the utility model provides a following technical scheme: a screwdriver comprises a screwdriver handle, a screwdriver rod and a screwdriver head connected with the screwdriver rod, wherein the screwdriver head comprises a straight screwdriver head and a cross screwdriver head which are respectively arranged at two ends of the screwdriver rod, the knife handle is hollow, the knife bar is telescopic, one end of the knife handle is provided with a first containing cavity for containing the knife bar, the other end of the knife handle is provided with a second containing cavity for containing the knife head, the straight screwdriver head and the cross screwdriver head both comprise a knife head part, a first connecting rod fixedly connected with the knife head part and a second connecting rod fixedly connected with the first connecting rod, the first and second cavities are both provided with an internal thread structure I, the first connecting rod is provided with an external thread structure I matched with the internal thread structure I, all be provided with external screw thread structure II on the outer wall at cutter arbor both ends, be provided with on the second connecting rod with external screw thread structure II matched with internal thread structure II.

By adopting the technical scheme, when the screwdriver is used, a tool bit (any tool bit in a straight-line screwdriver bit or a cross screwdriver bit) which is used for sealing the first containing cavity (the tool bit is in threaded connection with the first containing cavity through the first connecting rod and seals the first containing cavity) is detached from the first containing cavity, a tool bar in the first containing cavity is taken out, and the external thread structure II on one end of the tool bar is matched with the internal thread structure II on the second connecting rod to be in threaded connection with the tool bit. And then the cutter bar (the other end of the cutter bar which is opposite to the cutter head connected with the closed first cavity) is installed on the cutter head (the cutter head and the cutter head are in matched threaded connection with the external thread structure I on the first connecting rod through the internal thread structure I on the second cavity) on the second cavity through threaded connection. At the moment, the straight screwdriver head is in threaded connection with one end of the screwdriver rod through the second connecting rod, and the cross screwdriver head is in threaded connection with the other end of the screwdriver rod through the second connecting rod. Finally, the cutter bar is adjusted to the required length for use. If the type of the cutter head needs to be replaced, the cutter head connected with the second containing cavity is detached from the second containing cavity (the cutter head and the cutter rod are always in a connection state in the detaching process), and the cutter rod is in threaded connection with the second containing cavity relative to the cutter head at the other end of the cutter head. After the screwdriver is used, the user can detach the screwdriver rod and the screwdriver head (the screwdriver head used before the screwdriver is used) from the unused screwdriver head (the unused screwdriver head is connected with the second cavity). The cutter bar and the cutter head (the cutter head used before the use is finished) are disassembled, the cutter bar is contracted to the shortest state and then placed in the first containing cavity, and finally the cutter head (the cutter head used before the use is finished) is utilized to seal the first containing cavity. The utility model discloses a tool bit and first appearance chamber or second hold the intracavity when appearance chamber screw-thread fit, the all holding of tool bit portion hold the intracavity at first appearance chamber or second, set up like this for the user can not be hindered by tool bit portion mistake when carrying, is favorable to user's safety, and carries more conveniently. In addition, the cutter head and the cutter bar are connected through threads, and the cutter head is connected with the first cavity and the second cavity through threads, so that the cutter head and the cutter bar are more convenient to assemble and disassemble; and when the tool bit damages, the removable new tool bit need not scrap whole screwdriver, sets up like this, and is more economical and practical. After the screwdriver is used, the straight screwdriver head and the cross screwdriver head are in threaded connection with the first containing cavity and the second containing cavity respectively, the first containing cavity and the second containing cavity are set to be of internal thread structures I, and the first connecting rod is provided with an external thread structure I. Set up like this for when tool bit and first appearance chamber and second appearance chamber cooperation, the helicitic texture in head and first appearance chamber, the second appearance chamber can not expose outside, not only plays the guard action to the helicitic texture in head and first appearance chamber, the second appearance chamber, and to user's safe and reliable more. In addition, the external thread structures II are arranged at the two ends of the cutter bar, the internal thread structures II are arranged on the second connecting rod, and the cutter head is matched with the cutter bar, the first containing cavity and the second containing cavity and can be screwed on the cutter bar, the first containing cavity and the second containing cavity by the second connecting rod, so that a user can assemble and disassemble the cutter head more conveniently; and after the tool bit is matched with the first containing cavity and the second containing cavity, the second connecting rod is in an exposed state, but the internal thread structure II is arranged on the inner wall of the second connecting rod, so that the threaded structure on the second connecting rod is protected, and the tool bit is safer when being carried by a user.

The utility model discloses further set up: the outer walls of the knife handle and the second connecting rod are provided with anti-skid grains.

By adopting the technical scheme, the anti-skid lines on the handle can increase the friction between the user and the screwdriver in the process of twisting the screwdriver by the user, so that the user can conveniently assemble and disassemble the screw. Similarly, when the tool bit is installed, the anti-slip lines are arranged on the outer wall of the second connecting rod, so that the tool bit can be conveniently disassembled and assembled by a user.

The utility model discloses further set up: the outer wall of the knife handle is provided with a third containing cavity for containing the knife head, the third containing cavity is provided with an internal thread structure III matched with the external thread structure I, and the third containing cavity is arranged in the middle of the outer wall of the knife handle.

Through adopting above-mentioned technical scheme, the user is when needs vigorously screw, and the cooperation of external screw thread structure I on the first connecting rod of accessible and the internal thread structure III on the third appearance chamber installs the tool bit and holds the chamber with tool bit threaded connection's cutter arbor on the third appearance chamber, and the user screws the screw through the both ends of rotating the handle of a knife to it is more laborsaving when making the screwdriver use. And when the third cavity is not needed, a spare tool bit (any tool bit in the straight screwdriver bit or the cross screwdriver bit) can be installed on the third cavity, so that the tool bit can be timely replaced when the tool bit is damaged, and the working efficiency of a user is higher.

The utility model discloses further set up: and the other side of the cutter bar, which is opposite to the second containing cavity, is provided with a containing groove for containing a spare cutter head, and the top of the containing groove is provided with an internal thread structure IV matched with the external thread structure I.

Through adopting above-mentioned technical scheme, install a reserve tool bit (with install the tool bit that is the different grade type on the third holds the chamber with reserve tool bit) on holding the groove, set up like this, when the tool bit that uses damages, can in time change new tool bit.

The utility model discloses further set up: the cutter arbor includes the mobile jib and is provided with the vice pole of one at least, the mobile jib is hollow setting, vice pole cover is established in the mobile jib, the one end that vice pole corresponds the mobile jib is provided with the spacing portion that prevents vice pole and break away from the mobile jib, the other end of the relative mobile jib of vice pole is provided with the connecting portion with second connecting rod looks adaptation, external screw thread structure II sets up on connecting portion, be provided with connecting hole I on the vice pole just connecting hole I sets up a plurality ofly along the length direction of vice pole, the one end that the mobile jib corresponds vice pole is provided with the connecting hole II with connecting hole I looks adaptation, the one end that the mobile jib corresponds vice pole is provided with the connecting piece that consolidates the mobile jib and is connected with vice pole, connecting hole I.

Through adopting above-mentioned technical scheme, at the in-process that uses, when the user needs the length of adjustment screwdriver, can stretch out mobile jib to suitable length to vice pole, rotatory fixing bolt again (the utility model discloses a connecting piece can be fixing bolt) in fixing bolt screw in connecting hole I, connecting hole II, fix the length of the cutter bar after the user adjusts. Due to the arrangement, when a user uses the screwdriver, the structure of the screwdriver is more stable and reliable. When accomodating the cutter arbor, in the auxiliary rod withdrawal mobile jib, make the total length of cutter arbor shorten the back, place in first appearance intracavity, the person of facilitating the use carries.

Drawings

FIG. 1 is an exploded view of the structure of an embodiment of the present invention;

FIG. 2 is a first block diagram of an embodiment of the present invention;

FIG. 3 is a second structural diagram of the embodiment of the present invention;

FIG. 4 is a third structural diagram of the embodiment of the present invention;

fig. 5 is a partial structure diagram of the embodiment of the present invention;

FIG. 6 is a partial structure diagram of the embodiment of the present invention;

fig. 7 is a partial structure diagram of the embodiment of the present invention;

fig. 8 is a partial structural view of the embodiment of the present invention;

fig. 9 is a partial structure diagram of the embodiment of the present invention;

fig. 10 is a partial structural view six of the embodiment of the present invention;

the reference numbers in the figures mean: 1-a knife handle; 11-a first cavity; 12-a second cavity; 13-a receiving groove; 131-internal thread structure IV; 14-a third cavity; 141-internal thread structure III; 15-anti-skid lines; 16-internal thread structure I; 2, cutting a cutter bar; 21-main pole; 211-external thread configuration II; 212-a connector; 22-secondary rod; 221-connecting hole I; 23-a connecting part; 3-cross screwdriver head; 31-a cutter head portion; 32-first connecting rod; 321-external thread structure I; 33-a second connecting rod; 331-internal thread structure II; 4-a straight screwdriver bit; 5-spare tool bit.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to the attached drawings 1-10, the utility model discloses a screwdriver, which comprises a screwdriver handle 1, a screwdriver rod 2 and a screwdriver head connected with the screwdriver rod 2, wherein the screwdriver head comprises a straight screwdriver head 4 and a cross screwdriver head 3 respectively arranged at two ends of the screwdriver rod 2, the screwdriver handle 1 is hollow, the screwdriver rod 2 is telescopic, one end of the screwdriver handle 1 is provided with a first containing cavity 11 for containing the screwdriver rod 2, the other end of the screwdriver handle 1 is provided with a second containing cavity 12 for containing the screwdriver head, the straight screwdriver head 4 and the cross screwdriver head 3 both comprise a screwdriver head 31, a first connecting rod 32 fixedly connected with the screwdriver head 31 and a second connecting rod 33 fixedly connected with the first connecting rod 32, the first containing cavity 11 and the second containing cavity 12 are both provided with an internal thread structure I16, the first connecting rod 32 is provided with an external thread structure I321 matched with the internal thread structure I16, all be provided with external screw thread structure II211 on the outer wall at cutter arbor 2 both ends, be provided with on the second connecting rod 33 with external screw thread structure II211 matched with internal thread structure II 331. By adopting the technical scheme, when the screwdriver is used, a tool bit (any tool bit in the straight screwdriver bit 4 or the cross screwdriver bit 3) which seals the first accommodating cavity 11 is firstly detached from the first accommodating cavity 11, the tool bar 2 in the first accommodating cavity 11 is taken out, and the external thread structure II211 on one end of the tool bar 2 and the internal thread structure II331 on the second connecting rod 33 are matched with the tool bar 2 and the tool bit in threaded connection. And then the cutter bar 2 (the other end of the cutter bar 2 opposite to the cutter head connected with the first closed cavity 11) is installed on a cutter head (different types of cutter heads are the cutter heads of different types) on the second cavity 12 (the second cavity 12 and the cutter head are in matched threaded connection with the external thread structure I321 on the first connecting rod 32 through the internal thread structure I16 on the second cavity 12) through threaded connection. At this time, the straight screwdriver bit 4 is in threaded connection with one end of the screwdriver rod 2 through the second connecting rod 33, and the cross screwdriver bit 3 is in threaded connection with the other end of the screwdriver rod 2 through the second connecting rod 33. Finally, the cutter bar 2 is adjusted to the required length for use. If the type of the tool bit needs to be changed, the tool bit connected with the second accommodating cavity 12 is detached from the second accommodating cavity 12 (the tool bit and the tool bit are always in a connection state in the detaching process), and the tool bit 2 is in threaded connection with the second accommodating cavity 12 relative to the tool bit at the other end of the tool bit. After the use of the screwdriver is finished, the user can detach the tool shaft 2 and the tool bit (the tool bit used before the use is finished) from the unused tool bit (the unused tool bit is connected to the second cavity 12). The cutter bar 2 and the cutter head (the cutter head used before the use is finished) are disassembled, the cutter bar 2 is contracted to the shortest state and then placed in the first containing cavity 11, and finally the cutter head (the cutter head used before the use is finished) is utilized to seal the first containing cavity 11. When the cutter head of this embodiment and first appearance chamber 11 or second appearance chamber 12 screw-thread fit, the tool bit portion 31 of cutter head all holds in first appearance chamber 11 or second appearance chamber 12, sets up like this for the user can not be injured by tool bit portion 31 mistake when carrying, is favorable to user's safety, and carries more conveniently. In addition, the cutter head and the cutter bar 2 are connected through threads, and the cutter head is connected with the first cavity 11 and the second cavity 12 through threads, so that the cutter head and the cutter bar 2 are more convenient to assemble and disassemble; and when the tool bit damages, the removable new tool bit need not scrap whole screwdriver, sets up like this, and is more economical and practical. After the use of the screwdriver is finished, the straight screwdriver bit 4 and the cross screwdriver bit 3 are respectively in threaded connection with the first containing cavity 11 and the second containing cavity 12, the first containing cavity 11 and the second containing cavity 12 are set to be of internal thread structures I16, and the first connecting rod 32 is provided with an external thread structure I321. By the arrangement, when the tool bit is matched with the first accommodating cavity 11 and the second accommodating cavity 12, the thread structures on the first connecting rod 32, the first accommodating cavity 11 and the second accommodating cavity 12 are not exposed outside, so that the thread structures on the first connecting rod 32, the first accommodating cavity 11 and the second accommodating cavity 12 are protected, and a user can feel safer and more reliable. In addition, the two ends of the cutter bar 2 are both provided with an external thread structure II211, and the second connecting rod 33 is provided with an internal thread structure II331, so that the cutter head is matched with the cutter bar 2, the first containing cavity 11 and the second containing cavity 12, and the cutter head can be screwed on the cutter bar 2, the first containing cavity 11 and the second containing cavity 12 by using the second connecting rod 33, thereby being more convenient for a user to assemble and disassemble the cutter head; and after the cutter head is matched with the first containing cavity 11 and the second containing cavity 12, the second connecting rod 33 is exposed, but the internal thread structure II331 is arranged on the inner wall of the second connecting rod 33, so that the thread structure on the second connecting rod 33 is protected, and the carrying of a user is safer. The internal thread structure I16 of the embodiment is respectively arranged at one end of the first cavity 11 corresponding to the top of the tool holder 1; and one end of the second cavity 12 corresponding to the bottom of the tool holder 1.

The embodiment further provides that: the outer walls of the knife handle 1 and the second connecting rod 33 are both provided with anti-skid grains 15. By adopting the technical scheme, the anti-skid lines 15 on the handle 1 can increase the friction between the user and the screwdriver in the process of twisting the screwdriver, so that the user can conveniently assemble and disassemble the screw. Similarly, when the tool bit is installed, the anti-slip lines 15 are arranged on the outer wall of the second connecting rod 33, so that the tool bit can be conveniently disassembled and assembled by a user.

The embodiment further provides that: the outer wall of the tool holder 1 is provided with a third containing cavity 14 for containing a tool bit, the third containing cavity 14 is provided with an internal thread structure III141 matched with the external thread structure I321, and the third containing cavity 14 is arranged in the middle of the outer wall of the tool holder 1. Through adopting above-mentioned technical scheme, the user is when the screw is twisted vigorously to needs, and the cooperation of the internal thread structure III141 on the external screw thread structure I321 on the accessible head rod 32 and the third appearance chamber 14 installs the tool bit and with tool bit threaded connection's cutter arbor 2 on the third appearance chamber 14, and the user twists the screw through the both ends of rotating handle of a knife 1 to it is more laborsaving when making the screwdriver use. And when the third containing cavity 14 is not needed, a spare tool bit 5 (any tool bit in the straight screwdriver bit 4 or the cross screwdriver bit 3) can be installed on the third containing cavity 14, so that when the used tool bit is damaged, the new tool bit can be timely replaced, and the working efficiency of a user is higher.

The embodiment further provides that: another one of the cutter bar 2 opposite to the second cavity 12 is provided with a receiving groove 13 for receiving the spare cutter head 5, and the top of the receiving groove 13 is provided with an internal thread structure IV131 matched with the external thread structure I321. Through adopting above-mentioned technical scheme, install a reserve tool bit 5 (be the tool bit of different grade type with reserve tool bit 5 of installing on third appearance chamber 14) on accomodating groove 13, set up like this, when the tool bit that uses damages, can in time change the tool bit of renewal.

The embodiment further provides that: cutter arbor 2 includes mobile jib 21 and is provided with the vice pole 22 of one at least, mobile jib 21 is hollow setting, vice pole 22 cover is established in mobile jib 21, the one end that vice pole 22 corresponds mobile jib 21 is provided with the spacing portion that prevents vice pole 22 from breaking away from mobile jib 21, the other end of the relative mobile jib 21 of vice pole 22 is provided with the connecting portion 23 with second connecting rod 33 looks adaptation, external screw thread structure II211 sets up on connecting portion 23, be provided with connecting hole I221 on the vice pole 22 just connecting hole I221 sets up a plurality ofly along the length direction of vice pole 22, the one end that mobile jib 21 corresponds vice pole 22 is provided with the connecting hole II with connecting hole I221 looks adaptation, the one end that mobile jib 21 corresponds vice pole 22 is provided with the connecting piece 212 that consolidates mobile jib 21 and vice pole 22 and is connected, connecting piece 212 and connecting hole I221, connecting hole II looks adaptation. By adopting the technical scheme, in the using process, when a user needs to adjust the length of the screwdriver, the auxiliary rod 22 can extend out of the main rod 21 to a proper length, and then the fixing bolt (the connecting piece in the embodiment can be the fixing bolt) is rotated to screw the fixing bolt into the connecting hole I221 and the connecting hole II, so that the length of the cutter bar 2 adjusted by the user is fixed. Due to the arrangement, when a user uses the screwdriver, the structure of the screwdriver is more stable and reliable. When accomodating cutter arbor 2, in retracting the mobile jib 21 to vice pole 22, make the total length of cutter arbor 2 shorten the back, place in first appearance chamber 11, the person of facilitating the use carries.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a screwdriver, includes handle of a knife, cutter arbor and the tool bit that is connected with the cutter arbor, the tool bit is including setting up a word screwdriver bit and the cross screwdriver bit at the cutter arbor both ends respectively, its characterized in that: the utility model discloses a screwdriver, including handle of a knife, cutter arbor and cross screwdriver bit, the handle of a knife is cavity setting, the cutter arbor is scalable setting, the one end of handle of a knife is provided with the first chamber that holds the cutter arbor, the other end of handle of a knife is provided with the second chamber that holds the tool bit, a word screwdriver bit and cross screwdriver bit all include the tool bit portion, with tool bit fixed connection's head rod and with head rod fixed connection's second connecting rod, all be provided with female thread structure I on first chamber and the second chamber of holding, be provided with the male thread structure I with female thread structure I looks adaptation on the head rod, all be provided with male thread structure II on the outer wall at cutter arbor both ends, be provided with the female thread structure II with male.

2. A screwdriver as defined in claim 1, wherein: the outer walls of the knife handle and the second connecting rod are provided with anti-skid grains.

3. A screwdriver as defined in claim 1, wherein: the outer wall of the knife handle is provided with a third containing cavity for containing the knife head, the third containing cavity is provided with an internal thread structure III matched with the external thread structure I, and the third containing cavity is arranged in the middle of the outer wall of the knife handle.

4. A screwdriver as defined in claim 1, wherein: and the other side of the cutter bar, which is opposite to the second containing cavity, is provided with a containing groove for containing a spare cutter head, and the top of the containing groove is provided with an internal thread structure IV matched with the external thread structure I.

5. A screwdriver as defined in claim 1, wherein: the cutter arbor includes the mobile jib and is provided with the vice pole of one at least, the mobile jib is hollow setting, vice pole cover is established in the mobile jib, the one end that vice pole corresponds the mobile jib is provided with the spacing portion that prevents vice pole and break away from the mobile jib, the other end of the relative mobile jib of vice pole is provided with the connecting portion with second connecting rod looks adaptation, external screw thread structure II sets up on connecting portion, be provided with connecting hole I on the vice pole just connecting hole I sets up a plurality ofly along the length direction of vice pole, the one end that the mobile jib corresponds vice pole is provided with the connecting hole II with connecting hole I looks adaptation, the one end that the mobile jib corresponds vice pole is provided with the connecting piece that consolidates the mobile jib and is connected with vice pole, connecting hole I.