CN218644618U - Anti-disassembly screw and assembly and disassembly tools - Google Patents

Abstract

The utility model discloses an anti-disassembly screw and assembly and disassembly tools, the screw includes screwhead and screw rod of connection, set up at least one recess on the side surface that the screw rod was kept away from to the screwhead, the recess is located the edge of this side surface, and one end of the recess runs through this side surface terminal surface, the other end of the recess extends to the central direction of screwhead so as to form the block face of being convenient for the dismouting; the assembly and disassembly tools comprise a handle, a connecting part and a clamping part which are sequentially connected, a convex block which corresponds to the groove and is matched with the groove is arranged on the clamping part, and a contact surface matched with the clamping surface is arranged on the convex block. The utility model provides an there is the technical problem that often drops, influence the host computer to use in the installation in current module and host computer module storehouse.

Description

Anti-disassembly screw and assembly and disassembly tools

Technical Field

The utility model relates to a screw technical field, concretely relates to screw and assembly and disassembly tools of anti-disassembly.

Background

The screw is a fixing part widely used in the fields of machinery, electrical appliances, buildings and the like and consists of a screw head and a screw rod. Generally, the cylindrical surface of the screw is distributed with threads which are screwed in along a single direction of the central axis of the screw, and the head of the screw is designed with a straight-line-shaped groove or a cross-shaped groove, and some grooves are designed as polygonal concave holes or convex columns. The disassembly and assembly tools matched with the structure are generally a straight screwdriver or a cross-shaped bolt cutter, and a regular polygon screwdriver or a spanner. The screw with the structure can be repeatedly used for multiple times, is matched with a matched dismounting tool to be repeatedly screwed in or out of the screw hole, and realizes the fixation or separation of parts. However, in some cases, it is necessary to protect the machine member from being opened by an unprofessional or unauthorized person, which may cause damage to the product and other abnormalities, and this requires a screw of a special structure to fix the machine member, so as to effectively prevent the unprofessional or unauthorized person from opening the machine member, and at the same time, when the special person needs to open the machine member, the screw can be removed by using a special removing tool. For example, the chinese utility model patent publication No. CN202811746U discloses a "split anti-removal screw", wherein the clamping block is inserted into the driving groove, the upper end surface of the screw cap portion becomes a plane, and the screw can not be screwed down by any tool, so as to effectively prevent the screw from being disassembled by other people.

However, in the technical field of electrical equipment such as patient monitors, screws for fixing the module in the host module chamber are required to have an anti-disassembly function so as to prevent the screws from falling frequently and affecting the use of the host; it is also required to have a conductive function to realize the electrical signal connection between the host and the module. Obviously, the above-mentioned existing screws have not been satisfactory.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a screw and assembly and disassembly tools of anti-disassembly for the module of patient's monitor and the installation in host computer module storehouse, there is the technical problem that often drops, influence the host computer and use in order to solve the installation in current module and host computer module storehouse.

In order to achieve the technical purpose, the technical scheme of the utility model a screw head and screw rod including connecting of preventing dismantlement is provided, the screw head is kept away from one side of screw rod sets up at least one recess on the surface, the recess is located the edge of this side surface, just the one end of recess runs through in this side surface terminal surface, the other end of recess to the central direction of screw head extends in order to be formed with the clamping face of the dismouting of being convenient for.

In a preferred embodiment, two grooves are formed in the surface of the screw head, which is away from the screw rod, and the two grooves are symmetrically distributed.

As a preferred embodiment, the engaging surface of each groove is an arc-shaped surface.

As a preferred embodiment, the screw head is cylindrical or hexahedral.

In a preferred embodiment, the screw head and the screw rod are made of a metal material with conductive characteristics.

Correspondingly, the utility model also provides an assembly and disassembly tools, this assembly and disassembly tools are used for above-mentioned technical scheme the dismouting of anti-disassembly screw, including handle, connecting portion and the block portion that connects gradually, be provided with in the block portion with the lug of recess correspondence and adaptation, have on the lug with block surface complex contact surface.

As a preferred embodiment, a U-shaped groove extending from the side end surface to the other side end surface is formed on one side end surface of the engaging portion away from the connecting portion, and two protrusions are formed on protrusions on two sides of the U-shaped groove.

As a preferred embodiment, the contact surface of each protrusion is an arc surface adapted to the engaging surface.

As a preferred embodiment, the connecting portion includes a first connecting portion and a second connecting portion, one end of the first connecting portion is connected to the engaging portion, the other end of the first connecting portion is connected to the second connecting portion, the other end of the second connecting portion is connected to the center of the handle, a side elevation of the first connecting portion is a plane, and a side elevation of the second connecting portion connected to the plane is an inclined plane gradually upward from one end connected to the plane to an end close to the handle.

As a preferred embodiment, the first connecting portion and the second connecting portion are of an integral structure.

The beneficial effects of the utility model mainly include:

be different from head shape screws such as current common "one" font, "ten" font and plum blossom shape on the market, the utility model provides a pair of prevent screw of dismantling, one side that the screw rod was kept away from to its screwhead sets up at least one recess on the surface, the other end of this recess to the center direction of screwhead extends in order to be formed with the block face of the dismouting of being convenient for, and this recess and block face can only cooperate and adopt purpose-made screwdriver instrument could realize the installation and the dismantlement to this screw. Therefore, the utility model provides a screw is an anti-disassembly's screw, uses it in the module of patient's monitor and the installation in host computer module storehouse, can effectively prevent to take place because of the condition that the module that the screw drops that leads to drops, guarantees the normal use of host computer.

Drawings

Fig. 1 is a schematic view of the whole structure of the screw for preventing disassembly of the invention;

FIG. 2 is a schematic view of the screw head of FIG. 1, shown on a side surface thereof remote from the screw shaft;

fig. 3 is a schematic view of the whole structure of the disassembling tool of the present invention;

FIG. 4 is a schematic view of the installation of the anti-disassembly screw and the disassembly tool of the present invention on a module;

figure 5 is a schematic view of the assembled module of figure 4 installed with a host module bay.

Shown in the figure:

10-anti-disassembly screw, 11-screw head, 12-screw rod, 13-groove, 14-clamping surface;

20-a disassembly tool, 21-a handle, 22-a connection part, 221-a first connection part, 222-a second connection part, 23-a snap part, 24-a bump, 25-a contact surface;

30-die set, 31-front shell component, 32-rear shell component, 33-PCBA board, 34-copper nut;

40-host module chamber, 41-elastic electrode.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a screw 10 of anti-disassembly, including the screwhead 11 and the screw rod 12 that connect, screwhead 11 keeps away from set up at least one recess 13 on the surface of one side of screw rod 12, recess 13 is located the edge of this side surface, just recess 13's one end runs through in this side surface terminal surface, recess 13's the other end to screwhead 11's central direction extends in order to be formed with the clamping face 14 of being convenient for the dismouting. The screw with the structure can not be disassembled and assembled by adopting the common screwdriver in the shape of a straight line, a cross or a plum blossom and the like, and can only be assembled and disassembled by matching with a special tool, so that the screw has the disassembly prevention function and can effectively prevent two connected parts from falling off.

The technical solution of the present invention will be further explained with reference to the specific embodiments.

As shown in fig. 1-2, the screw 10 includes a screw head 11 and a screw rod 12, two grooves 13 are disposed on a side surface of the screw head 11 away from the screw rod 12, the two grooves 13 are symmetrically distributed, each groove 13 is located at an edge of the side surface, one end of each groove 13 penetrates through an end surface of the side surface, and the other end of each groove 13 extends toward a center of the screw head 11 to form a clamping surface 14 for facilitating disassembly and assembly.

Further, in order to enable the grooves 13 to be better engaged with the disassembling tool, the engaging surface 14 of each groove 13 is an arc-shaped surface.

Further, the screw head 11 has a cylindrical or hexahedral shape.

In addition, the screws of the embodiment are applied to the connection between the module of the patient monitor and the host module chamber, so that the task of electric signal transmission is also carried out. To achieve this, the screw head 11 and the screw 12 are of an integral structure made of a metal material having conductive properties.

Correspondingly, as shown in fig. 3, the present embodiment further provides a disassembling tool 20 for disassembling and assembling the screw 10 with anti-disassembling function as mentioned in the above technical solution, which includes a handle 21, a connecting portion 22 and an engaging portion 23 connected in sequence, a protrusion 24 corresponding to and fitting with the groove 13 is disposed on the engaging portion 23, and the protrusion 24 has a contact surface 25 cooperating with the engaging surface 14.

In this embodiment, corresponding to the screw 10 for preventing detachment, a U-shaped groove 26 extending from one side end surface of the engaging portion 23 to the other side end surface is formed on one side end surface of the connecting portion 22, and two protrusions 24 are formed by protrusions on two sides of the U-shaped groove 26.

Further, in order to enable the screw 10 to be attached and detached more easily by the attaching and detaching tool 20, the contact surface 25 of each of the projections 24 is an arc-shaped surface adapted to the engaging surface 14.

Further, the connecting portion 22 includes a first connecting portion 221 and a second connecting portion 222, one end of the first connecting portion 221 is connected to the engaging portion 23, the other end of the first connecting portion 221 is connected to the second connecting portion 222, the other end of the second connecting portion 222 is connected to the center of the handle 21, a vertical surface of the first connecting portion 221 is a plane, and a vertical surface of the second connecting portion 222 connected to the plane is an inclined surface gradually upward from one end connected to the plane to an end close to the handle 21, so as to better assemble and disassemble the screw 10.

Further, the first connection portion 221 and the second connection portion 222 are of an integral structure.

Fig. 4 shows a structural diagram of the module 30 of the patient monitor, where we need to install the front housing 31 into the rear housing 32, as shown in the figure, two copper nuts 34 made of conductive material are disposed on the PCBA board 33 of the front housing 31, these two copper nuts 34 are used as conductive pins, when installing, the front housing 31 is inserted into the rear housing 32, and then the anti-disassembly screw 10 described in this embodiment is inserted through the corresponding hole of the rear housing 32 to be rotatably butted with the two copper nuts 34 on the front housing 31, and the disassembly and assembly tool 20 described in this embodiment is used to screw the bolt, so that the module 30 is assembled.

After the module 30 is assembled, as shown in fig. 5, the module 30 needs to be inserted into the host module chamber 40 along the corresponding position, and the surface of the anti-detaching screw 10 with conductive function is against the elastic electrode 41 disposed in the host module chamber, so as to realize the electrical signal connection between the host and the module.

In conclusion, the screw 10 for preventing disassembly is applied to the assembly of the module 30 of the patient monitor and the connection with the host module bin 40, and can prevent the screw from falling off while having the electric signal transmission, so that the screw 10 can be disassembled and assembled only by matching with the special disassembling and assembling tool 20, thereby ensuring the normal use of the patient monitor.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The screw head is far away from one side surface of the screw rod, at least one groove is formed in the surface, located at the edge of the side surface, of the screw rod, one end of the groove penetrates through the end face of the side surface, and the other end of the groove extends towards the center direction of the screw head to form a clamping face convenient to assemble and disassemble.

2. The screw according to claim 1, wherein two grooves are provided on the surface of the screw head away from the screw, and the two grooves are symmetrically distributed.

3. The screw of claim 2, wherein the engaging surface of each groove is an arc-shaped surface.

4. A screw with anti-disassembly according to claim 3, in which the head is cylindrical or hexahedral.

5. The screw of claim 4, wherein the screw head and the screw rod are of a unitary structure made of a metal material having conductive properties.

6. A disassembling tool for disassembling and assembling the disassembly-preventing screw according to any one of claims 1 to 5, which comprises a handle, a connecting part and a clamping part which are connected in sequence, wherein a convex block which corresponds to and is matched with the groove is arranged on the clamping part, and a contact surface which is matched with the clamping surface is arranged on the convex block.

7. The tool as claimed in claim 6, wherein the engaging portion has a U-shaped groove extending from one end surface of the engaging portion to the other end surface of the engaging portion, and two protrusions are formed on the two sides of the U-shaped groove.

8. The assembly and disassembly tool of claim 7 wherein the contact surface of each protrusion is an arcuate surface that mates with the engagement surface.

9. The tool according to claim 6, wherein the connecting portion comprises a first connecting portion and a second connecting portion, one end of the first connecting portion is connected to the engaging portion, the other end of the first connecting portion is connected to the second connecting portion, the other end of the second connecting portion is connected to a center of the handle, a side vertical surface of the first connecting portion is a plane, and a side vertical surface of the second connecting portion connected to the plane is an inclined surface gradually rising from one end connected to the plane to a position close to one end of the handle.

10. A disassembly and assembly tool according to claim 9 wherein the first connection portion and the second connection portion are of unitary construction.

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