CN114367937A - A kind of screw sleeve and assembled screwdriver - Google Patents

Abstract

The invention provides a screw sleeve and an assembled screwdriver, and belongs to the technical field of screwdrivers. It has solved the problem that current screwdriver can not be applicable to stainless steel screw. The invention relates to a screw sleeve and an assembled screwdriver. Wherein, can block the screw that injects in the connecting sleeve through a plurality of locating parts, afterwards, inject the screwdriver in the connecting sleeve, and a plurality of screens spare on the activity ring block the side of screwdriver, the tip of screwdriver injects in the recess of screw head portion, later, when people will twist reverse the power and act on the screwdriver, because of the screw is restricted by a plurality of locating parts, the screwdriver is restricted by a plurality of screens spare, so, alright ensure that the screw and the screwdriver of this moment are in same straight line, thereby make the screwdriver can drive the screw synchronous rotation of stainless steel, so, just do not need people to manually hold the screw, thereby make things convenient for people to screw the stainless steel screw into mounted position department.

Description

A screw sleeve and an assembled screwdriver

technical field

The invention belongs to the technical field of screwdrivers, and relates to a screw sleeve and an assembled screwdriver.

Background technique

In mechanical installation, in many cases, it is difficult to place screws into screw holes due to limited space, and magnetic screwdrivers have greatly improved this situation. However, the magnetic screwdriver can only absorb ordinary carbon steel screws, and does not work for non-magnetic stainless steel screws. In the military industry and other fields with high environmental protection requirements, stainless steel screws are basically used, and such screwdrivers are inconvenient to screw stainless steel screws into any position in such environments.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a screw sleeve and an assembled screwdriver that are convenient to use and suitable for stainless steel screws.

The object of the present invention can be achieved through the following technical solutions: a screw cover, comprising:

connecting sleeve;

a fixing ring, which is arranged on the inner wall of one end of the connecting sleeve, and a plurality of limiting pieces are arranged inside the fixing ring in an annular array around its central axis;

The movable ring is movably arranged in the connecting sleeve, and the inner wall of the movable ring is provided with a plurality of clamping pieces in an annular array around its central axis.

In the above-mentioned screw sleeve, a first through hole is formed in the fixed ring, a second through hole is formed in the movable ring, a partition plate is arranged in the connecting sleeve, and a third hole is arranged in the partition plate. Perforated, the movable ring is located between the fixed ring and the baffle.

In the above-mentioned screw sleeve, the locking member includes a second convex shell movably arranged in a movable ring, and a second cavity for accommodating the second convex shell is opened in the movable ring, and the second convex shell is opened in the movable ring. The convex shell can be embedded in the second through hole.

In the above-mentioned screw sleeve, a second elastic member is arranged in the second cavity, one end of the second elastic member is pressed against the inside of the second convex shell, and the edge of the second convex shell surrounds the A second blocking bar is provided, and a second blocking ring is provided on the inner wall of the second cavity to prevent the second blocking strip from being separated from the second cavity.

In the above-mentioned screw sleeve, the limiting member includes a first convex shell movably arranged in a fixing ring, and a first cavity for accommodating the first convex shell is opened in the fixing ring, and the first convex shell is opened in the fixing ring. The convex shell can be embedded in the first through hole.

In the above-mentioned screw sleeve, a first elastic member is arranged in the first cavity, one end of the first elastic member is pressed against the inside of the first convex shell, and the outer surface of the first convex shell faces inward The recess forms a slot, the edge of the first convex shell is surrounded by a first blocking strip, and the inner wall of the first cavity is provided with a first blocking strip to prevent the first blocking strip from being detached from the first cavity. ring.

In the above-mentioned screw sleeve, the limiting member includes a clamping ball that is movably clamped in a fixing ring, a spherical cavity for accommodating the clamping ball is arranged in the fixing ring, and the connecting sleeve is provided with a connection with the ball. The cavity communicates with the opening, and the side of the connecting sleeve is surrounded with a spring plate that blocks the opening.

In the above-mentioned screw sleeve, a third elastic member is arranged in the connecting sleeve, one end of the third elastic member is pressed against the fixed ring, and the other end of the third elastic member is pressed against the movable ring.

In the above-mentioned screw sleeve, a magnetic ring is arranged in the connecting sleeve, a fourth through hole is arranged in the magnetic ring, and the first through hole, the second through hole, the third through hole and the fourth through hole are arranged coaxially .

An assembled screwdriver, comprising: the above-mentioned connecting sleeve of a screw sleeve and a clamping member, wherein a screwdriver is inserted in the connecting sleeve, a ring groove is arranged on the side of the screwdriver, and each of the clamping members is clamped into the ring groove.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, the screws inserted into the connection sleeve can be clamped by a plurality of stoppers, after that, the screwdriver is inserted into the connection sleeve, and the multiple stoppers on the movable ring are stuck on the side of the screwdriver. , the end of the screwdriver is inserted into the groove of the screw head, after that, when people apply torsional force on the screwdriver, the screw is restricted by multiple stoppers, and the screwdriver is restricted by multiple stoppers, so , it can ensure that the screw and the screwdriver are in the same line at this time, so that the screwdriver can drive the stainless steel screw to rotate synchronously, so that people do not need to hold the screw manually to avoid hand injury, and it is also convenient for people to screw the stainless steel screw. into the installation location.

2. When people don’t screw the screw, they can pull out the screwdriver from the connection sleeve, and during the process of pulling out the screwdriver, the clamping part is automatically separated from the screwdriver. In this way, it is convenient for people to separate the screw sleeve from the screwdriver. It is convenient for people to classify screwdrivers and screw sleeves.

3. According to the installation situation on site, select one of the limiting pieces in Embodiment 1 or Embodiment 2 to assemble the screw sleeve, so that the screw sleeve can clamp the corresponding stainless steel screw, so that it is convenient for people to screw the screw into the screw sleeve. in the installation location.

4. Through the arrangement of the third elastic member, when people insert the screwdriver into the connecting sleeve and pass through the third through hole of the partition, each detent member on the movable ring will preferentially contact the side of the screwdriver, and make the second convex The case can be easily clamped at the designated position on the side of the screwdriver.

5. By adding a magnetic ring, the screw sleeve can be applied not only to stainless steel screws, but also to magnetic screws. Here, the dual-purpose nature of the screw sleeve is reflected.

Description of drawings

FIG. 1 is a schematic diagram of the external structure of the screw sleeve in the first embodiment.

FIG. 2 is a cross-sectional view at A-A in FIG. 1 .

FIG. 3 is an assembly diagram of the screw sleeve and the screw driver in the first embodiment.

FIG. 4 is a schematic diagram of the external structure of the screw sleeve in the second embodiment and the third embodiment.

FIG. 5 is a cross-sectional view at B-B in FIG. 4 .

FIG. 6 is an assembly diagram of the screw sleeve and the screw driver in the second and third embodiments.

FIG. 7 is a schematic diagram of the structure after the first elastic member and the second elastic member are selected from marbles and a jacket is added on the basis of the first embodiment.

Detailed ways

The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in FIGS. 1 to 3 , a screw sleeve in this embodiment includes a connecting sleeve 100 , a fixing ring 200 , a limiting member 400 , a movable ring 300 and a locking member 500 .

In the present invention, the designated position for mounting the screw is referred to as the mounting position, and the screwdriver 600 of the present invention does not have magnetism.

In this embodiment, the screw is made of stainless steel.

The fixing ring 200 is arranged on the inner wall of one end of the connecting sleeve 100 , and a plurality of limiting members 400 are arranged in the inside of the fixing ring 200 in an annular array around its central axis. The movable ring 300 is movably arranged in the connecting sleeve 100 . The inner wall of the ring 300 is provided with a plurality of retaining members 500 in an annular array around its central axis. When a certain screw is screwed on the installation position, one needs to insert the head of the screw into the connecting sleeve 100 first, and then insert the head of the screw into the connecting sleeve 100. The stopper 400 on the fixing ring 200 restricts the screw from being detached from the connecting sleeve 100 . After that, people need to insert the screwdriver 600 matched with the screw into the connecting sleeve 100 until each stopper on the movable ring 300 is reached. 500 is stuck on the side of the screwdriver 600. After that, when people continue to move the screwdriver 600 toward the screw, the screwdriver 600 will drive the movable ring 300 to move synchronously. When the end of the screwdriver 600 is inserted into the groove of the screw head (not shown in the figure) After marking), since the screw is restricted by a plurality of stop members 400, and the screwdriver 600 is restricted by a plurality of stop members 500, it can be ensured that the screw and the screwdriver 600 are on the same line at this time. When the exposed part of the screw outside the connection sleeve 100 contacts the installation position, the torsional force can act on the screwdriver 600, so that the screwdriver 600 can drive the screw to rotate synchronously, that is, the screw can be easily screwed into the installation position. After the end of the 100 is in contact with the installation position, that is, after the screw is partially screwed into the installation position, people continue to apply torsional force on the screwdriver 600, and the screwdriver 600 drives the movable ring 300 to move relative to the connecting sleeve 100. At the same time, the screw is relatively The fixing ring 200 moves, and during this process, each stopper 400 will no longer clamp the head of the screw, so that the screw can be removed from the connecting sleeve 100, that is, the installation of the screw is completed. When screwing the screw, the screwdriver 600 can also be pulled out from the connection sleeve 100, which is also convenient for people to classify the screwdriver 600 and the screw sleeve; secondly, compared with the prior art, the present invention does not require people to manually hold it when it is implemented. Hold the screws to avoid hand injury, and it is also convenient for people to screw the stainless steel screws into the installation location.

A first through hole 210 is formed in the fixed ring 200 , a second through hole 310 is formed in the movable ring 300 , a partition 110 is formed in the connecting sleeve 100 , and a third through hole 111 is formed in the partition 110 . The movable ring 300 is located between the fixed ring 200 and the partition plate 110 , the retaining member 500 includes a second convex shell 510 movably arranged in the movable ring 300 , and a second convex shell 510 is opened in the movable ring 300 for accommodating the second convex shell 510 . The second cavity 320, the second convex shell 510 can be embedded in the second through hole 310, the second cavity 320 is provided with a second elastic member 520, and one end of the second elastic member 520 abuts against the second convex shell Inside 510, the other end of the second elastic member 520 is in contact with the inner wall of the connecting sleeve. When people insert the screwdriver 600 into the connecting sleeve 100, the screwdriver 600 will pass through the third through hole 111 and the second through hole 310 in turn, Until each retaining member 500 is stuck at the preset position on the side of the screwdriver 600, and when the screwdriver 600 presses each second convex shell 510, the second convex shell 510 can move relative to the second cavity 320, and the second elastic One end of the member 520 is pressed against the inside of the second convex shell 510, and the other end of the second elastic member 520 is in contact with the inner wall of the connecting sleeve, so that the second elastic member 520 is compressed by force, and at the same time, the second convex shell 510 is retracted into the second Inside the cavity 320, and when each second convex shell 510 is stuck at a designated position on the side of the screwdriver 600, the second elastic member 520 pushes the second convex shell 510 to move outward by a predetermined distance, so that the movable ring 300 and the screwdriver 600 can pass through the first position. The two convex shells 510 are elastically connected, so that the screwdriver 600 can drive the movable ring 300 to move relative to the connecting sleeve 100 ; further, when people want to pull out the screwdriver 600 from the connecting sleeve 100 , they only need to apply a pulling force on the screwdriver 600 , and when the movable ring 300 abuts against the partition plate 110, the partition plate 110 blocks the movement of the movable ring 300, so that the second convex shell 510 is forced to move into the second cavity 320, the second elastic member 520 is compressed again by force, and During this process, the screwdriver 600 continues to be pulled out of the connection sleeve 100 , so that each of the retaining members 500 can be separated from the screwdriver 600 , and when the screwdriver 600 is completely separated from each of the second convex shells 510 , the second elastic member 520 pushes the second convex shell 510 to reset again.

The edge of the second convex shell 510 is surrounded by a second blocking strip 511 , and the inner wall of the second cavity 320 is provided with a second blocking ring 321 to prevent the second blocking strip 511 from being detached from the second cavity 320 , when the second convex shell 510 moves relative to the second cavity 320 , the second blocking ring 321 will block the second blocking bar 511 to prevent the second convex shell 510 from being detached from the second cavity 320 .

The limiting member 400 includes a first convex shell 410 movably disposed in the fixing ring 200 . The fixing ring 200 defines a first cavity 220 for accommodating the first convex shell 410 , and the first convex shell 410 can be embedded In the first through hole 210 , a first elastic member 420 is arranged in the first cavity 220 , one end of the first elastic member 420 is pressed against the inside of the first convex shell 410 , and the outer surface of the first convex shell 410 faces inward The recess forms a clamping slot 411. When the screw is to be clamped, the head of the screw needs to be inserted into the connecting sleeve 100, and when the head of the screw is pressed against the first convex shell 410, the first convex shell 410 can be opposite to the first convex shell 410. A cavity 220 moves, one end of the first elastic member 420 abuts against the inner wall of the first convex shell 410 , the other end of the first elastic member 420 abuts against the inner wall of the connecting sleeve 100 , and the fixing ring 200 is fixed to the inner wall of the connecting sleeve 100 connected, so that the first elastic member 420 is compressed by force, and at the same time, the first convex shell 410 is retracted into the first cavity 220, and when the side of the screw head is clamped into each slot 411, the first elastic member 420 The first convex shell 410 will be pushed outward for a certain distance, so that the first convex shell 410 will clamp the head of the screw, so as to prevent the screw from being detached from the connecting sleeve 100 .

The edge of the first convex shell 410 is surrounded by a first blocking bar 412 , and the inner wall of the first cavity 220 is provided with a first blocking ring 221 to prevent the first blocking bar 412 from being detached from the first cavity 220 . , when the first convex shell 410 moves relative to the first cavity 220 , the first blocking ring 221 will block the first blocking bar 412 to prevent the first convex shell 410 from being detached from the first cavity 220 .

As shown in FIG. 1 and FIG. 7 , in the present invention, the first elastic member and the second elastic member may be springs or marbles made of rubber materials.

Embodiment 2

As shown in FIGS. 4 to 6 , the difference between this embodiment and the first embodiment is that the structure of the limiting member 400 is changed in this embodiment.

In this example, the elastic plate 130 has a certain elasticity.

Specifically, the limiting member 400 includes a clamping ball 430 movably clamped in the fixing ring 200 . The fixing ring 200 is provided with a spherical cavity 230 for accommodating the clamping ball 430 , and the connecting sleeve 100 is provided with a spherical cavity 230 . 230 is connected to the opening 120, the connecting sleeve 100 is also provided with a communication groove (not marked in the figure) that communicates the openings 120, the side of the connecting sleeve 100 is surrounded by a spring plate 130 that blocks the opening 120, When people insert the head of the screw into the connecting sleeve 100, the clamping ball 430 is pressed into the cavity 230, and at the same time, the elastic plate 130 is stressed and physically deformed, when the head of the screw passes over the clamping ball 430 At this time, the clamping ball 430 is only subjected to the elastic force of the elastic plate 130, so that the clamping ball 430 is reset, so that the screw can be clamped in the connecting sleeve 100, that is, the screw can be prevented from being detached from the connecting sleeve 100.

Embodiment 3

As shown in FIGS. 4 to 6 , the difference between this embodiment and the first embodiment is that the third elastic member 140 is added on the basis of the first embodiment in this embodiment.

Specifically, the connecting sleeve 100 is provided with a third elastic member 140. When the screw sleeve is not used, one end of the third elastic member 140 is pressed against the fixed ring 200, and the other end of the third elastic member 140 is pressed against the movable ring 300. The fixing ring 200 is fixedly connected with the inner wall of the connecting sleeve 100 , so that the third elastic member 140 has a certain elastic force on the movable ring 300 , so that the movable ring 300 is pressed against the partition plate 110 . Therefore, when people insert the screwdriver 600 into the connecting sleeve 100 When passing through the third through hole 111 of the partition plate 110 , each locking member 500 on the movable ring 300 will preferentially contact the side surface of the screwdriver 600 , so that the second convex shell 510 can smoothly clamp the screwdriver 600 at a designated position on the side surface. , and when the screwdriver 600 drives the movable ring 300 to move axially relative to the connecting sleeve 100 through the retaining member 500, the third elastic member 140 will be correspondingly forced to shrink. The elastic force will not make the second convex shell 510 detach from the designated position of the screwdriver 600, so as to ensure the stable connection between the screwdriver 600 and the head of the screw.

Embodiment 4

As shown in FIG. 2 and FIG. 5 , in this embodiment, a magnetic ring 150 is added on the basis of the first embodiment.

In this embodiment, the screw made of magnetic material is called a suction screw.

Specifically, the connecting sleeve 100 is provided with a magnetic ring 150 , the magnetic ring 150 is provided with a fourth through hole 151 , and the first through hole 210 , the second through hole 310 , the third through hole 111 and the fourth through hole 151 are coaxially disposed , when people insert the head of the adsorption screw into the fourth through hole 151 of the magnetic ring 150, and make the head of the adsorption screw abut against the partition 110, there is a magnetic force between the head of the adsorption screw and the magnetic ring 150 , so that the adsorption screw is sucked by the magnetic ring 150, so that the adsorption screw cannot fall out of the connecting sleeve 100. After that, people pass the screwdriver 600 through the first through hole 210, the second through hole 310 and the third through hole 111 in turn, and make the first through hole 210. The two-convex shell 510 is stuck on the side of the screwdriver 600, and the end of the screwdriver 600 is connected to the head of the suction screw. After that, people can screw the suction screw into the installation position. After the contact, that is, after the part of the adsorption screw is screwed into the installation position, people continue to apply torsional force on the screwdriver 600, and the screwdriver 600 drives the movable ring 300 to move relative to the connecting sleeve 100, and at the same time, the adsorption screw moves relative to the magnetic ring 150, In this way, the screw can be removed from the connecting sleeve 100, that is, the installation of the adsorption screw is completed. Compared with the prior art, this solution does not require people to manually hold the adsorption screw during implementation, so that it is convenient for people Screw the suction screw into the installation position with a non-magnetic screwdriver 600.

Embodiment 5

As shown in FIG. 3 and FIG. 6 , in this embodiment, the screw sleeve in the first embodiment is applied to a designated screwdriver 600 .

Specifically, an assembled screwdriver includes: the above-mentioned connecting sleeve 100 and a locking member 500, a screwdriver 600 is inserted in the connecting sleeve 100, and a ring groove 610 is arranged on the side of the screwdriver 600. The positioning members 500 are all snapped into the ring groove 610. When people insert the screwdriver 600 into the connecting sleeve 100, the second convex shell 510 of the positioning member 500 will move against the surface of the screwdriver 600 until the second convex shell 510 will be snapped into the ring groove 610 of the screwdriver 600 to realize the connection between the screwdriver 600 and the movable ring 300 .

Embodiment 6

As shown in FIG. 7 , in this embodiment, a jacket 330 is added on the basis of the first embodiment.

Specifically, the outer surface of the movable ring is sleeved with an outer sleeve 330, wherein the end of the second elastic member away from the second convex shell is in contact with the inner wall of the outer sleeve. The movable ring will not be in direct contact with the connecting sleeve, and the second elastic member will not scratch the inner wall of the connecting sleeve, so as to better protect the outer surface of the movable ring and the inner wall of the connecting sleeve.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", "one", etc. in the present invention are only used for description purposes, and should not be interpreted as indicating or implying their relative importance or implicitly indicating the indicated technical features quantity. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims (10)

1. a screw cover, is characterized in that, comprises: connecting sleeve; a fixing ring, which is arranged on the inner wall of one end of the connecting sleeve, and a plurality of limiting pieces are arranged inside the fixing ring in an annular array around its central axis; The movable ring is movably arranged in the connecting sleeve, and the inner wall of the movable ring is provided with a plurality of clamping pieces in an annular array around its central axis. 2 . The screw sleeve according to claim 1 , wherein a first through hole is formed in the fixed ring, a second through hole is formed in the movable ring, and a partition plate is formed in the connecting sleeve, 3 . The partition plate is provided with a third through hole, and the movable ring is located between the fixed ring and the partition plate. 3 . The screw socket according to claim 2 , wherein the locking member comprises a second convex shell movably arranged in the movable ring, and the movable ring is provided with a second convex shell for accommodating the second convex shell. 4 . The second cavity, the second convex shell can be embedded in the second through hole. 4 . The screw socket according to claim 3 , wherein a second elastic member is provided in the second cavity, and one end of the second elastic member is pressed against the inside of the second convex shell, so the The edge of the second convex shell is surrounded with a second blocking strip, and the inner wall of the second cavity is provided with a second blocking ring to prevent the second blocking strip from being separated from the second cavity. 5 . The screw socket according to claim 2 , wherein the limiting member comprises a first convex shell movably arranged in the fixing ring, and the fixing ring is provided with a first convex shell for accommodating the first convex shell. 6 . The first cavity, the first convex shell can be embedded in the first through hole. 6 . The screw socket according to claim 5 , wherein a first elastic member is provided in the first cavity, and one end of the first elastic member is pressed against the inside of the first convex shell, so the The outer surface of the first convex shell is recessed inward to form a slot, the edge of the first convex shell is surrounded by a first blocking bar, and the inner wall of the first cavity is provided with a first blocking bar to prevent the first blocking The first stop ring that is released from the cavity. 7 . The screw socket according to claim 2 , wherein the limiting member comprises a clamping ball that is movably clamped in a fixing ring, and the fixing ring is provided with a spherical cavity for accommodating the clamping ball, 8 . The connecting sleeve is provided with an opening communicating with the spherical cavity, and the side surface of the connecting sleeve is surrounded with an elastic plate that blocks the opening. 8 . The screw sleeve according to claim 1 , wherein a third elastic member is provided in the connecting sleeve, one end of the third elastic member is pressed against the fixing ring, and the other end of the third elastic member Against the active ring. 9 . The screw sleeve according to claim 2 , wherein a magnetic ring is arranged in the connecting sleeve, a fourth through hole is arranged in the magnetic ring, the first through hole, the second through hole, the first through hole The three perforations and the fourth perforations are coaxially arranged. 10. An assembled screwdriver, characterized in that it comprises: a connecting sleeve and a clamping part of a screw sleeve according to any one of claims 1 to 9, wherein a screwdriver is inserted in the connecting sleeve, and the screwdriver A ring groove is arranged on the side surface of the device, and each of the locking pieces is snapped into the ring groove.

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