CN210616401U - Nail supporting assembly - Google Patents

Abstract

The utility model discloses a hold up nail subassembly can follow first linear direction and can dismantle and be connected to criticizing the head, holds up the nail subassembly and includes: the nail supporting body extends along a first linear direction basically, and comprises a nail supporting part, and a channel for inserting the screw and wrapping at least part of the screw is formed around the nail supporting part; at least part of the nail supporting main body is made of elastic materials and can be elastically deformed along the direction vertical to the first straight line; the nail sucking piece is installed to holding up the nail main part or criticizing the head, and the nail sucking piece includes the magnetic element who produces magnetic attraction to the screw. The utility model discloses a hold up the nail subassembly and can avoid long screw to take place crooked at the nailing in-process.

Description

Nail supporting assembly

Technical Field

The utility model relates to an accessory device of instrument, concretely relates to hold up nail subassembly.

Background

At present, the electric screwdriver and the screwdriver head are widely applied to processing places in a matching mode, and part of screwdriver heads are provided with magnetic screw attracting structures for attracting screws. However, for a long screw with a certain length commonly used in home decoration places, such as a screw of a three-in-one connecting assembly (also called minifix, hereinafter referred to as three-in-one screw), since the long screw has a long length, a user needs to hold the screw to avoid the screw from being inclined in the machining process so as to ensure that the screw can be vertically driven into a workpiece, and the process is easy to cause inconvenience in operation or fatigue in operation of the user.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model aims to provide an avoid long screw to take place crooked nail subassembly of holding up at the nailing in-process.

In order to achieve the above object, the utility model adopts the following technical scheme:

a pin holding assembly for detachable connection to a batch head for cooperating with the batch head to mount a screw to a workpiece, the pin holding assembly comprising: the nail supporting body extends along a first linear direction basically, and comprises a nail supporting part, and a channel for a screw to be inserted into and wrap at least part of the screw is formed around the nail supporting part; at least part of the nail supporting body is made of elastic materials, so that the nail supporting body can be elastically deformed along the direction vertical to the first straight line; the nail sucking piece is installed to holding up the nail main part or criticizing the head, and the nail sucking piece includes the magnetic element who produces magnetic attraction to the screw.

Further, the screw comprises a head part used for matching with the batch head and a tail part used for acting with the workpiece, and the ratio of the inner diameter size of at least part of the channel to the radial size of the head part is larger than 1 and smaller than or equal to 1.5.

Further, a ratio of a length of the channel along the first line to a length of the screw is greater than or equal to 1/6 and less than or equal to 1/3.

Further, the staple supporting assembly further comprises: the nail supporting extending part is connected to the nail supporting main body, coaxial with the nail supporting part and sequentially distributed along a first straight line, and the channel is formed by the nail supporting extending part and the nail supporting part in a surrounding mode.

Further, the nail absorbing piece is sleeved to the screwdriver head or the connecting rod along the first linear direction; the nail holding main body is sleeved to the nail sucking piece along a first linear direction; the nail absorbing piece is in a sleeve shape.

Further, hold up nail main part both ends opening and be formed with the through-hole along first straight line direction, hold up nail main part inside and be provided with the restriction and inhale nail spare and the spacing portion that the screw passed the through-hole along first straight line.

Further, the passage includes a stepped bore that cooperates with a portion of the screw forming the shaft bore.

Further, the elastic material is rubber.

Further, the nail sucking piece is installed inside the nail supporting body or outside the batch head and is symmetrical about the first straight line.

A staple holding assembly removably connectable to a batch head in a first linear direction, the staple holding assembly comprising: the nail supporting body extends along a first linear direction basically, and comprises a nail supporting part, and a channel for inserting the screw and wrapping at least part of the screw is formed around the nail supporting part; the nail attracting piece is arranged on the nail supporting body or the batch head and comprises a magnetic element generating magnetic attraction force on the screw; the locking portion is connected to and holds up the nail main part or with holding up nail main part integrated into one piece, and the locking portion has locking state and unblock state for holding up the nail main part, and when the locking portion was in locking state, it was unchangeable for the position of criticizing first straight line head edge to hold up the nail portion, and when the locking portion was in unblock state, it was changeable for the position of criticizing first straight line head edge to hold up the nail portion.

Further, the nail supporting body comprises an elastic part capable of generating elastic deformation, and when the locking part is switched between the locking state and the unlocking state, the elastic part contracts inwards or expands outwards by taking the first straight line as a center.

The utility model discloses an useful part lies in: the nail holding assembly limits the long screw, and prevents the long screw from being inclined in the nailing process, so that the operation is more convenient and labor-saving.

Drawings

Fig. 1 is a schematic view showing the cooperation of a nail holding assembly with a batch head and a screw according to a first embodiment of the invention;

FIG. 2 is a cross-sectional view of the pin holder assembly, batch head, and screw of FIG. 1;

FIG. 3 is an exploded view of the pin holder assembly, bit and screw of FIG. 1;

FIG. 4 shows a cross-sectional view of the staple assembly of FIG. 1;

FIG. 5 shows a plan view of the screw of FIG. 1;

fig. 6 is a schematic view showing the cooperation of the nail supporting assembly with the batch head and the screw according to the second embodiment of the invention;

FIG. 7 is a schematic view of the staple assembly of FIG. 6;

figure 8 shows a cross-sectional view of the staple body of the staple assembly of figure 6.

Detailed Description

The utility model discloses a hold up nail subassembly and be applicable to the long screw that has certain length, prevent that the long screw from taking place to incline or rocking at the in-process of nailing into the work piece, make it follow perpendicular to workpiece surface direction nail basically and go into. The pin supporting assembly is mounted to the batch head along a first straight line, and it should be noted that the fact that the pin supporting assembly is connected to the batch head means that the pin supporting assembly can be directly connected to the batch head or directly connected to a connecting rod for connecting the batch head. In addition, the screw herein refers not only to a screw but also to a screw-type fastener including a screw, a stud, a bolt, and the like for driving into a workpiece. For convenience of explanation, in fig. 1 and 6, the up and down directions indicated by arrows are provided, and the position of the bit with respect to the screw is specified. The axial direction mentioned below is a direction parallel to or coincident with the first straight line, and the radial direction is a direction perpendicular to the first straight line.

As shown in fig. 1 to 4, the pin supporting assembly 100 is used for being detachably connected to the batch head 200 to cooperate with the batch head 200 to mount the screw 300 on the workpiece, and specifically, the pin supporting assembly 100 according to the first embodiment of the present invention is detachably connected to the batch head 200 along the first straight line 101. The nail supporting assembly 100 comprises a nail supporting body 11 and a nail absorbing piece 12, wherein the nail absorbing piece 12 is used for absorbing the screw 300 and mainly generates axial attraction force to the screw 300 to prevent the screw 300 from falling off in the nailing process. The nail 12 is mounted to the nail supporting body 11 or the batch head 200 or the extension bar, and the nail 12 includes a magnetic element 121 that generates a magnetic attraction force to the screw 300. The staple body 11 extends substantially along the first line 101, the staple body 11 being mounted to the bit 200 or to the extension rod, in particular the staple body 11 being substantially cylindrical, the radial dimension of the staple body 11 being constant or variable. The staple body 11 is sleeved to the extension bar or bit 200. The staple body 11 comprises a staple holding portion 111, the staple holding portion 111 surrounding a channel 112 formed for insertion of a screw 300 and wrapping of at least part of the screw 300. The nail supporting portion 111 may be connected to the nail supporting body 11 or may be integrally formed with the nail supporting body 11.

In the present embodiment, the nail supporting body 11 is not directly connected to the connecting rod or the batch head 200 but directly connected to the nail absorbing member 12, in the present embodiment, the nail absorbing member 12 is sleeved to the batch head 200 or the connecting rod along the first straight line 101, and the nail supporting body 11 is sleeved to the nail absorbing member 12 along the first straight line.

At least part of the nail supporting body 11 is made of an elastic material, so that the nail supporting body 11 can be elastically deformed along a direction perpendicular to the first straight line 101. The staple body 11 comprises an elastomer made of an elastic material, preferably rubber. The elastomer is such that the staple body 11 is elastically deformable at least in a direction perpendicular to the first line 101, the elastomer preferably being in the shape of a solid of revolution. In this embodiment, the nail supporting body 11 is a rotational body made of rubber, when the screw 300 is connected to the batch head 200, the nail supporting body 11 wraps at least part of the screw 300 and at least part of the batch head 200, and since the nail absorbing member 12 is sleeved on the surface of the batch head 200 in this embodiment, the nail supporting body 11 directly wraps at least part of the nail absorbing member 12 and at least part of the batch head 200. Preferably, the nail attracting member 12 is installed symmetrically about the center axis of the batch head 200.

As an alternative embodiment, the nail-attracting member 12 is mounted to the nail-holding body 11. Preferably, the staple body 12 is substantially symmetrical about the first line 101, the suckers 12 being embedded in the staple body 12 and being symmetrically arranged about the first line 101.

In this embodiment, the nail supporting body 11 is formed with a through hole along the first straight line 101, wherein a part of the through hole can be penetrated by the screw 300, and the nail absorbing member 12 and the screw 300 are respectively inserted into two ends of the through hole. A limiting part 113 for limiting the nail sucking part 12 and the screw 300 to pass through the through hole along the first straight line 101 is arranged in the nail supporting body 11; specifically, the through hole formed in the nail supporting body 11 can be roughly divided into a first channel 112a and a second channel 112b, the first channel 112a and at least part of the screw 300 form a shaft hole, and the second channel 112b and at least part of the nail sucking member 12 form a shaft hole.

The position-limiting portion 113 is disposed between the first channel 112a and the second channel 112b, and limits the positions of the nail sucking member 12 and the screw 300 relative to the nail supporting body 11 so that they stay inside the second channel 112b and the first channel 112a, respectively, and cannot pass through the entire channel 112, while being combined together by the magnetic element 121. In this embodiment, the nail attracting member 12 is specifically in the shape of a sleeve and is a magnetic sleeve, that is, the nail attracting member 12 is an annular sleeve made of a magnetic material. It will be appreciated that in other embodiments, the staple sucker 12 and the staple supporting body 11 may be connected to the extension bar or the bit 200, respectively, without being connected to each other. The radial dimension of the first passage 112a is different from the radial dimension of the second passage 112b, and in this embodiment, the radial dimension of the first passage 112a is smaller than the radial dimension of the second passage 112 b.

At least a portion of the screw 300 forms a shaft-hole fit with the first passage 112a in a direction perpendicular to the first straight line 101, and specifically may be a clearance fit, an interference fit, or a transition fit.

In this embodiment, the nail supporting portion 111 is made of rubber, and at least a portion of the screw 300 and the first channel 112a form an interference fit in a direction perpendicular to the first straight line 101, or the nail supporting portion 111 is elastically deformed when only wrapping the screw 300, and the screw 300 is subjected to a radial pressure by the nail supporting portion 111, so that the radial position is substantially kept unchanged, and the nail supporting portion 111 locks the position of the screw 300 by its own elasticity without an additional locking member.

The limiting part 113 is specifically a step of a stepped hole or/and a collar which is in interference fit with the inside of the staple body 11. In this embodiment, a collar is fixedly mounted inside the first passage 112a, and an interference fit is formed between the collar and the nail supporting body 11, or protruding teeth are formed on the surface of the collar, and tooth grooves matched with the teeth are formed inside the nail supporting body 11, so that the connection stability between the collar and the nail supporting body 11 is enhanced. Since the nail supporting portion 111 is made of rubber in the embodiment, the screw 300 may not be limited in the radial direction due to its flexibility, and therefore, the limiting portion 113 is preferably made of a material with certain rigidity, at least the rigidity of the limiting portion 113 in the radial direction is greater than that of the nail supporting portion 111, and the nail supporting effect of the nail supporting assembly 100 is enhanced by the limiting portion 113. That is, the limiting portion 113 not only limits the screw 300 in the direction of the first straight line 101 and in the direction perpendicular to the first straight line 101 by its own size, but also improves the nail supporting effect by the rigidity of its own material.

As shown in fig. 2, 4 and 5, the ratio of the length L1 of the screw 300 inserted into the first passage 112a along the first straight line 101 to the length L2 of the screw 300 is 1/6 or more and 1/3 or less. This range of ratios ensures that the screw 300 is more firmly restrained. For the general screw 300, it is preferable that a ratio of a length L1 of the screw 300 inserted into the first passage 112a in the direction of the first straight line 101 to a length L2 of the screw 300 is greater than or equal to 1/5 and less than or equal to 1/4. The three-in-one connecting assembly comprises an eccentric wheel, a screw and a pre-embedded nut, the three are installed in a matched mode to fix the workpiece, and the three is mainly used for fixing the plate-type furniture. In this embodiment, the screw 300 is a three-in-one screw rod extending substantially along the first straight line 101, and the three-in-one screw rod sequentially includes a head 31, a neck 33, a waist 34 and a tail 32 along the first straight line 101, where the head 31 is configured to cooperate with the bit 200, the tail 32 is provided with an external thread, and a radial dimension of the neck 33 is smaller than a radial dimension of at least a portion of the waist 34. For a three-in-one screw, the length L3 of the first channel 112a along the first line 101 is greater than or equal to the sum L4 of the lengths of the head 31 and the neck 33 along the first line 101, i.e., the first channel 112a can cover at least the head 31 and the neck 33 of the screw along the first line 101. When the screw is coupled to the batch head 200, the first line 101 coincides with the first line 101.

The tack assembly 100 may further comprise: the nail supporting extending parts are connected to the nail supporting main body 11, are coaxial with the nail supporting parts 111 and are sequentially distributed along the first straight line 101, and the nail supporting extending parts and the nail supporting parts 111 jointly surround to form a channel 112. Present trinity screw rod that has on the market includes the screw rod of multiple different length such as 32mm, 35mm, 40mm, for guaranteeing to hold up nail subassembly 100 and be applicable to the trinity screw rod of different length or other screws 300, the utility model discloses a hold up nail subassembly 100 has set up the nail extension of holding up that is used for the extension to hold up 111 axial dimensions of nail portion. Specifically, the nail supporting extension and the nail supporting part 111 both surround a channel 112 formed for inserting the screw 300 and wrapping at least part of the screw 300, and the nail supporting extension is detachably connected to one end of the nail supporting part 111, specifically, one end of the nail supporting part 111 inserted into the screw 300. The material of the staple extension is preferably plastic or metal. Preferably, the nail holding extension is in a hollow cylindrical shape and is axially and coaxially connected with the nail holding portion 111 in an interference manner. When the screw 300 is shorter or shorter, the staple extension can be disassembled and assembled according to specific conditions, thereby enhancing the practicability of the staple assembly 100.

Fig. 6 is a schematic view showing the cooperation of a nail supporting assembly 100 ' of a second embodiment of the present invention with a batch head 20 ' and a screw 300 ', the nail supporting assembly 100 ' of the present embodiment has the same function as the nail supporting assembly 100 of the first embodiment, and the difference from the nail supporting assembly 100 of the first embodiment lies in the structure and material of the nail supporting assembly 100 ', the batch head 200 ' and the screw 300 ' of the present embodiment are the same as the first embodiment, and other parts the same as the nail supporting assembly 100 of the first embodiment can be applied to the present embodiment.

As shown in fig. 6 and 7, the nail supporting assembly 100 'is detachably connected to the batch head 200' along a first straight line 101 ', and the nail supporting assembly 100' includes a nail supporting body 11 ', a nail absorbing member 12', and the nail absorbing member 12 'is used for absorbing the screw 300' and mainly generates axial attraction force on the screw 300 'to prevent the screw 300' from falling off during nailing. The nail attracting member 12 'is mounted to the nail supporting body 11' or the batch head 200 'or the extension rod, the nail attracting member 12' includes a magnetic element generating a magnetic attraction force to the screw 300 ', and the nail attracting member 12' is a ring-shaped magnetic sleeve in the embodiment. The staple body 11 ' extends substantially along a first line 101 ', the staple body 11 ' being mounted to the bar 200 ' or to the magazine head 200 ', in particular the staple body 11 ' being substantially cylindrical, nested to the bar or magazine head 200 '. The nail supporting body 11 'comprises a nail supporting part 111', the nail supporting part 111 'surrounds a channel 112' formed for inserting the screw 300 'and wrapping at least part of the screw 300'; in this embodiment, the nail supporting body 11 'is formed with an axial through hole, wherein a part of the through hole is capable of being penetrated by the screw 300', i.e. a channel 112 'for inserting the screw 300' and wrapping at least a part of the screw 300 ', and the nail supporting body 11' forming the channel 112 'is a nail supporting part 111'. The staple supporting portion 111 ' may be connected to the staple supporting body 11 ' or may be integrally formed with the staple supporting body 11 '.

In this embodiment, the staple supporting body 11 ' is not directly connected to the extension bar or the batch head 200 ' but directly connected to the staple sucker 12 '. The nail 12 'is sleeved to the batch head 200' or the extension bar along the first straight line 101 ', and the nail supporting assembly 100' is sleeved to the nail 12 'along the first straight line 101'. In fact, the two ends of the nail supporting body 11 ' are open and are formed with a through hole along the direction of the first straight line 101 ', the nail absorbing piece 12 ' and the screw 300 ' are respectively inserted into the two ends of the through hole, and a limiting part 113 ' for limiting the nail absorbing piece 12 ' and the screw 300 ' to pass through the through hole along the first straight line 101 ' is arranged inside the nail supporting body 11 '; specifically, the through hole formed in the nail supporting body 11 ' can be roughly divided into a first channel 112a ' and a second channel 112b ', the first channel 112a ' and at least part of the screw 300 ' form a shaft hole for matching, and the second channel 112b ' and at least part of the nail sucking member 12 ' form a shaft hole for matching.

As an alternative embodiment, the staple holding body 11 ' is directly connected to the bit 200 ' or to the extension bar, while the suction piece 12 ' is mounted to the staple holding body 11 ' as part of the staple holding assembly 100 '. The nail attracting member 12 'is preferably a magnetic ring or sleeve made of magnetic material, and is sleeved with the first straight line 101' as a sleeve inside a channel 112 'formed around the nail supporting body 11'. Since the nail attracting member 12 'is used to attract the screw 300' to be tightly coupled with the batch head 200 ', it is preferable that the nail attracting member 12' is axially closer to the end of the nail holding body 11 'where the batch head 200' is installed with respect to the batch head 200 ', and the nail attracting member 12' is disposed above the batch head 200 'in the direction of the first straight line 101'.

The position-limiting portion 113 ' is disposed between the first channel 112a ' and the second channel 112b ', and limits the position of the nail-attracting member 12 ' and the screw 300 ' relative to the nail-supporting body 11 ' so that they stay inside the second channel 112b ' and the first channel 112a ', respectively, and cannot pass through the entire channel 112 ', while being coupled together by a magnetic element. It will be appreciated that in other embodiments, the staple sucker 12 ' and staple assembly 100 ' may be connected to the extension bar or bit 200 ', respectively, without being connected to each other. The radial dimension of the first passage 112a 'is different from the radial dimension of the second passage 112 b', and in this embodiment, the radial dimension of the first passage 112a 'is smaller than the radial dimension of the second passage 112 b'.

In this embodiment, the first passage 112a 'includes a stepped hole, specifically a clearance fit, which is matched with a shaft hole formed by a part of the screw 300' to further define the position of the screw relative to the nail supporting body 11 ', and meanwhile, since the three-in-one screw is generally formed by a multi-stage structure with different radial dimensions, the stepped hole is a stepped hole having a plurality of steps, which forms a plurality of sections of passages 112' with different bore diameters, which are matched with the multi-stage structure of the screw 300 'to further radially limit the screw 300'.

The staple supporting assembly 100 ' further comprises a locking portion 13 ', the locking portion 13 ' being connected to the staple supporting body 11 ' or being integrally formed with the staple supporting body 11 ', the locking portion 13 ' having a locked state and an unlocked state with respect to the staple supporting body 11 ', the position of the staple supporting portion 111 ' along the first line 101 ' with respect to the batch head 200 ' being constant when the locking portion 13 ' is in the locked state, and the position of the staple supporting portion 111 ' along the first line 101 ' with respect to the batch head 200 ' being variable when the locking portion 13 ' is in the unlocked state. In this embodiment, the locking portion 13 ' is embodied as a metal ring, which is fitted to the surface of the staple body 11 ' and slides with respect to the staple body 11 '. The locking part 13 ' has a locking position and an unlocking position, and when the locking part 13 ' is located at the locking position, the locking part 13 ' is in a locking state; when the locking portion 13 'is located at the unlocking position, the locking portion 13' is in the unlocked state. As an alternative embodiment, the locking portion 13 ' is a catch, connected to the staple body 11 ' or formed integrally with the staple body 11 '.

The nail body 11 'is made of a material preferably plastic, the nail body 11' is formed with an elastic portion 114 'at one end of the through hole, the elastic portion being expandable in a direction perpendicular to the first line 101', specifically, the elastic portion 114 'in this embodiment is a part of the nail body 11' and includes an opening portion 114a ', the opening portion 114 a' is located at one end of the nail body 11 ', the opening portion 114 a' is specifically a hollow-out portion formed on the surface of the nail body 11 ', the number of the opening portions 114 a' is not limited, specifically, the number of the opening portions 114a 'is greater than or equal to 1, and the opening portions 114 a' which are at least partially broken in the circumferential direction are different opening portions 114a ', and the opening portions 114 a' are uniformly distributed in the circumferential direction. The opening 114a 'is formed such that the elastic portion 114' has claw portions 114b 'that can be opened and closed in a direction perpendicular to the first straight line 101', and the plurality of claw portions 114b 'and the plurality of opening portions 114 a' are evenly distributed at intervals in the circumferential direction. The claw portion 114b ' causes the elastic portion 114 ' to have a larger elastic deformation centered on the first straight line 101 '.

When the locking portion 13 ' is switched between the locked state and the unlocked state, the elastic portion 114 ' is contracted inward or expanded outward centering on the first straight line 101 '. Specifically, when the locking portion 13 ' moves from the locking position to the unlocking position, the batch head 200 ' and the connecting rod are inserted into the staple supporting body 11 ', and the elastic portion 114 ' expands outwards around the first straight line 101 '; when the batch head 200 ' and the link rod are inserted into the staple supporting body 11 ' and the locking portion 13 ' moves from the unlocking position to the locking position, the elastic portion 114 ' is contracted inward centering on the first straight line 101 '.

The staple body 11 'is further formed with a sliding groove 115' on an outer surface of the staple body 11 ', and the locking portion 13' is slidably disposed in the sliding groove 115 'and is slidable relative to the staple body 11' along the first line 101 'in the sliding groove 115' to any one of a locked position, an unlocked position, and a position between the locked position and the unlocked position.

In this embodiment, at least a portion of the screw 300 ' is in clearance fit with the first channel 112a ' in a direction perpendicular to the first line 101 '.

Specifically, the screw 300 ' includes a head portion engaged with the batch head 200 ' and a tail portion engaged with the workpiece, and a ratio of an inner diameter dimension of at least the portion of the first passage 112a ' for receiving the head portion to a radial dimension of the head portion is greater than 1 and equal to or less than 1.5, and preferably, a ratio of an inner diameter dimension of at least the portion of the first passage 112a ' for receiving the head portion to a radial dimension of the head portion is greater than 1 and equal to or less than 1.3, and in the present embodiment, a ratio of an inner diameter dimension of at least the portion of the first passage 112a ' for receiving the head portion to a radial dimension of the head portion is about 1.1. The screw 300 ' is inserted into the nail supporting body 11 ' along the first straight line 101 ' and forms a shaft hole matching with the first channel 112a ', and the first channel 112a ' covers at least the head of the screw 300 ' along the first straight line 101 ', and the ratio is in a range that the screw 300 ' can be conveniently disassembled and assembled, and meanwhile, the screw 300 ' is not basically skewed or only skewed in a small range along the radial direction when being driven into a workpiece. According to the size of a common three-in-one screw, it is preferable that the radial size of the first passage 112a 'engaged with the head of the screw 300' is 6mm or more and 8mm or less.

As another preferred embodiment, the screw 300 ' includes a head portion cooperating with the bit 200 ' and a tail portion for interacting with the workpiece, and a body portion located between the head portion and the tail portion, and the ratio of the inner diameter dimension of the portion of the first channel 112a ' for receiving at least a portion of the body portion to the radial dimension of the body portion is greater than 1 and equal to or less than 1.5, preferably, the ratio of the inner diameter dimension of the portion of the first channel 112a ' for receiving at least a portion of the body portion to the radial dimension of the body portion is greater than 1 and equal to or less than 1.3, and in this embodiment, the ratio of the inner diameter dimension of the portion of the first channel 112a ' for receiving at least a portion of the body portion to the radial dimension of the body portion is. The screw 300 ' is inserted into the nail supporting body 11 ' along the first straight line 101 ' and forms a shaft hole matching with the first channel 112a ', and the first channel 112a ' covers at least the head part and part of the body part of the screw 300 ' along the first straight line 101 ', and the ratio range enables the screw 300 ' to be conveniently disassembled and assembled, and simultaneously enables the screw 300 ' to be basically not skewed or only skewed in a small range along the radial direction when being driven into a workpiece. According to the size of a common three-in-one screw, it is preferable that the radial dimension of the portion of the first passage 112 a' engaged with at least a portion of the body is greater than or equal to 7mm and less than or equal to 10 mm. The radial dimension of the body may be constant or may vary, as long as the dimensions of some of the body portions satisfy the above-described relationship and the numerical range.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (11)

1. A pin holder assembly for removable attachment to a batch head for cooperating with the batch head to mount a screw to a workpiece, the pin holder assembly comprising:

the nail supporting body extends along a first linear direction and comprises a nail supporting part, and a channel for the screw to be inserted into and wrap at least part of the screw is formed around the nail supporting part; at least part of the nail supporting body is made of elastic materials so that the nail supporting body can be elastically deformed along the direction perpendicular to the first straight line;

the nail attracting piece is installed on the nail supporting body or the batch head and comprises a magnetic element generating magnetic attraction force on the screw.

2. The staple assembly of claim 1, wherein:

the screw comprises a head part used for being matched with the batch head and a tail part used for acting with the workpiece, and the ratio of the inner diameter size of at least part of the channel to the radial size of the head part is larger than 1 and smaller than or equal to 1.5.

3. The staple assembly of claim 1, wherein:

the ratio of the length of the channel along the first line to the length of the screw is greater than or equal to 1/6 and less than or equal to 1/3.

4. The staple assembly of claim 1, wherein:

the staple holding assembly further comprises: the nail supporting extending portion is connected to the nail supporting main body, coaxial with the nail supporting portion and sequentially distributed along a first straight line, and the channel is formed by the nail supporting extending portion and the nail supporting portion in a surrounding mode.

5. The staple assembly of claim 1, wherein:

the nail absorbing piece is sleeved to the screwdriver head or the connecting rod along the first linear direction; the nail holding main body is sleeved to the nail sucking piece along a first linear direction; the nail absorbing piece is in a sleeve shape.

6. The staple assembly of claim 5, wherein:

the nail holding body is provided with through holes at two ends, the through holes are formed in the first straight line direction, and limiting parts for limiting the nail sucking part and the screw to penetrate through the through holes along the first straight line are arranged inside the nail holding body.

7. The staple assembly of claim 1, wherein:

the passage includes a stepped bore that cooperates with a portion of the screw forming a shaft bore.

8. The staple assembly of claim 1, wherein:

the elastic material is rubber.

9. The staple assembly of claim 1, wherein:

the nail sucking piece is installed inside the nail supporting body or outside the batch head and is symmetrical about the first straight line.

10. A pin holder assembly for removable attachment to a batch head for cooperating with the batch head to mount a screw to a workpiece, the pin holder assembly comprising:

the nail supporting body extends along a first linear direction and comprises a nail supporting part, and a channel for the screw to be inserted into and wrap at least part of the screw is formed around the nail supporting part;

the nail attracting piece is mounted to the nail supporting body or the batch head and comprises a magnetic element generating magnetic attraction force on the screw;

the locking part is connected to the nail supporting body or integrally formed with the nail supporting body, the locking part has a locking state and an unlocking state relative to the nail supporting body, when the locking part is in the locking state, the nail supporting part is unchanged relative to the position of the batch head along the first straight line, and when the locking part is in the unlocking state, the nail supporting part is changeable relative to the position of the batch head along the first straight line.

11. The staple assembly of claim 10, wherein:

the nail supporting body comprises an elastic part capable of elastically deforming, and when the locking part is switched between the locking state and the unlocking state, the elastic part contracts inwards or expands outwards by taking the first straight line as a center.

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