CN218110618U - Device for protecting a gasket - Google Patents

Abstract

The utility model provides a device for protecting packing ring. The device for protecting the gasket comprises a first pipe body and a separation assembly, wherein the first pipe body is in threaded connection with the separation assembly; the inner diameter of the first pipe body is larger than the outer diameter of the first ring body, the first pipe body extends along a first direction, the first pipe body comprises a first end and a second end opposite to the first end along the first direction, and the first pipe body prevents the first ring body from deforming along the radial direction of the first ring body when the screw head extrudes the first ring body relative to an object to be connected so that the first ring body deforms along the first direction; the separation assembly is in contact with the object to be connected when the gasket is arranged between the screw head of the screw and the object to be connected, and is used for driving the first pipe body to move away from the object to be connected along the axial direction of the first pipe body; the difference between the inner diameter of the first pipe body and the outer diameter of the first ring body is less than or equal to 4mm.

Description

Device for protecting a gasket

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a device for protecting packing ring.

Background

When a screw is installed in some equipment (for example, a compressor, etc.) in which oil exists, it is sometimes necessary to install a special washer between the head of the screw and the equipment, where the washer includes an outer ring and an inner ring, the outer ring is made of metal material, and the inner ring disposed inside the outer ring is made of elastic material such as rubber, and this kind of washer may be referred to as a combination washer. After the screw is installed on the equipment through the screw hole on the equipment, oil in the equipment can be prevented from leaking to the outside of the equipment from a gap between the equipment and the screw hole through the inner ring of the combined washer.

In the related art, when the combined washer and the screw are installed, a worker generally sets the combined washer above a screw hole of the device, aligns the screw with the screw hole, and then directly screws the screw into the screw hole by using a tool such as a screwdriver, so that the combined washer is stably contacted with a screw head and the device at the same time, thereby completing installation.

However, when the screw is directly screwed into the screw hole by using a tool such as a screwdriver for installation, the screw head is generally continuously screwed for a certain distance after contacting with the combined washer to ensure stable assembly between the screw and the equipment, and the combined washer is deformed by continuously applying pressure and torque to the combined washer during the screwing process of the screw head. Due to the structural particularity of the combined gasket, the combined gasket is difficult to bear excessive torque, and is more prone to generate excessive deformation when bearing excessive torque and pressure, so that the combined gasket is more prone to damage when being directly mounted. Therefore, a new technical solution is needed to reduce the possibility of damage to the combination washer when the combination washer and the screw are assembled.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for installing packing ring to solve above-mentioned problem at least partially.

The embodiment of the application provides a device for installing packing ring, wherein, the packing ring includes first circle body and second circle body, and the outside of second circle body is located to first circle body cover, and the internal diameter of second circle body is greater than the diameter of the screw of screw, and this device for protecting the packing ring includes: the first pipe body is in threaded connection with the separation assembly; the inner diameter of the first pipe body is larger than the outer diameter of the first ring body, the first pipe body extends along a first direction, the first pipe body comprises a first end and a second end opposite to the first end along the first direction, and the first pipe body prevents the first ring body from deforming along the radial direction of the first ring body when the screw head extrudes the first ring body relative to an object to be connected so that the first ring body deforms along the first direction; the separation assembly is in contact with the object to be connected when the gasket is arranged between the screw head of the screw and the object to be connected, and is used for driving the first pipe body to move away from the object to be connected along the axial direction of the first pipe body; wherein, the difference between the inner diameter of the first pipe body and the outer diameter of the first ring body is less than or equal to 4mm.

In some alternative embodiments, the first thread section is provided on the outer wall of the first tube; the separation assembly comprises a second pipe body, the second pipe body extends along a first direction, the second pipe body comprises a first end and a second end opposite to the first end along the first direction, a second thread section is arranged on the outer wall of the second pipe body, the second pipe body is sleeved on the outer side of the first pipe body, the second thread section is in thread fit with the first thread section, and the second end of the second pipe body is in contact with an object to be connected when a gasket is arranged between a screw head of a screw and the object to be connected.

In some alternative embodiments, the first thread segment includes a first end and a second end opposite the first end in the first direction, the first end of the first thread segment being distal from the second end of the first tube, the second end of the first thread segment being proximal to the second end of the first tube; the second threaded section comprises a first end and a second end opposite to the first end along the first direction, the first end of the second threaded section is far away from the second end of the second pipe body, and the second end of the second threaded section is close to the second end of the second pipe body; a first distance between the second end of the first thread segment and the second end of the first tubular body is less than a second distance between the second end of the second thread segment and the second end of the second tubular body, and a difference between the second distance and the first distance is greater than a thickness of the first collar body.

In some alternative embodiments, the length of the first tube is greater than the length of the second tube.

In some optional embodiments, the means for protecting the gasket further comprises: the compressing assembly comprises a first end and a second end, the second end of the compressing assembly is in contact with the first end of the first pipe body when the gasket is installed between the screw head of the screw and the object to be connected, the compressing assembly further comprises an object channel, the object channel is formed between the first end of the compressing assembly and the second end of the compressing assembly, the object channel is communicated with the first pipe body, the object channel is used for enabling a screwing tool to enter the first pipe body to be matched with the screw head when the gasket is installed between the screw head of the screw and the object to be connected, and the first end of the compressing assembly is in contact with the screwing tool when the gasket is installed between the screw head of the screw and the object to be connected.

In some alternative embodiments, the hold-down assembly includes a first plate connected to a first end of the spring, a second plate connected to a second end of the spring, and a spring; the first plate body is provided with a first through hole, the second plate body is provided with a second through hole, and the first through hole, the spring and the second through hole form an object channel; the first plate body forms a first end of the pressing assembly, and the second plate body forms a second end of the pressing assembly.

In some alternative embodiments, the second plate is fixedly attached to the first end of the first tube.

In the device for protecting the gasket in the embodiment of the application, the inner diameter of the first pipe body is larger than the outer diameter of the first ring body of the gasket, the first pipe body can prevent the first ring body from deforming along the radial direction of the first ring body when the screw head extrudes the first ring body relative to an object to be connected so that the first ring body deforms along the first direction, and the difference between the inner diameter of the first pipe body and the outer diameter of the first ring body is smaller than or equal to 4mm, so that the device for protecting the gasket can prevent the first ring body of the first gasket from deforming along the radial direction of the first ring body, the first ring body is not easily damaged due to extrusion fracture of the screw head, and the second ring body is not easily deformed at the fracture part of the first ring body, so that the device for protecting the gasket can protect the gasket, avoid the damage of the gasket due to assembly, and effectively reduce the possibility of damage of the gasket when the gasket and the screw are assembled; because the first ring body becomes to contact with first body after, first ring body can support tightly on the inner wall of first body under some circumstances, lead to comparatively hard when taking off first body after screw and packing ring assembly are accomplished, and break away from the subassembly then can install the screw head of screw and wait to connect the object contact when between the object at the packing ring, and can drive first body and keep away from along the axial of first body and wait to connect the object removal, utilize this to break away from the subassembly and can make first body and packing ring break away from the contact more conveniently after assembly packing ring and screw are accomplished, the staff of being convenient for takes off first body more laborsavingly.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application.

Fig. 1 illustrates a schematic diagram of an exemplary apparatus for protecting a gasket in accordance with an embodiment of the present application.

Fig. 2 shows a schematic diagram of the first pipe body after being out of contact with the first ring body according to an embodiment of the present application.

Reference numerals:

1. a gasket; 10. an object to be connected; 11. a first ring body; 12. a second ring body; 2. a screw; 21. a screw head; 22. a screw; 3. screwing a tool; 31. a hydraulic section; 32. a screwdriver bit; 4. a first pipe body; 41. a first thread segment; 5. a compression assembly; 51. a first plate body; 511. a first through hole; 52. a second plate body; 521. a second through hole; 53. a spring; 6. a disengaging assembly; 61. a second tube; 62. a second thread segment.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of protection of the embodiments in the present application.

It should be noted that the drawings of the various descriptions of the present application are only for the convenience of illustration and understanding of the present embodiments, and are not intended as any limitation on the present application, which is not necessarily drawn to scale.

Referring to fig. 1 to 2, in an embodiment of the present application, there is provided an apparatus for protecting a washer, where the washer 1 includes a first ring body 11 and a second ring body 12, the first ring body 11 is sleeved outside the second ring body 12, and an inner diameter of the second ring body 12 is greater than a diameter of a shank 22 of a screw 2, the apparatus for protecting a washer including: the first pipe body 4 is in threaded connection with the separation component 6; the inner diameter of the first pipe body 4 is larger than the outer diameter of the first ring body 11, the first pipe body 4 extends along a first direction, the first pipe body 4 comprises a first end and a second end opposite to the first end along the first direction, and the first pipe body 4 blocks the first ring body 11 from deforming along the radial direction of the first ring body 11 when the screw head 21 presses the first ring body 11 relative to the object 10 to be connected so that the first ring body 11 deforms along the first direction; the disengaging assembly 6 is in contact with the object to be connected 10 when the washer 1 is mounted between the screw head 21 of the screw 2 and the object to be connected 10, and the disengaging assembly 6 is used for driving the first tube 4 to move away from the object to be connected 10 along the axial direction of the first tube 4; wherein, the difference between the inner diameter of the first pipe 4 and the outer diameter of the first ring 11 is less than or equal to 4mm.

In the device for protecting the gasket in the embodiment of the present application, the inner diameter of the first tube 4 is greater than the outer diameter of the first ring 11 of the gasket 1, and the first tube 4 can block the first ring 11 from deforming in the radial direction of the first ring 11 when the screw head 21 presses the first ring 11 against the object 10 to be connected so that the first ring 11 deforms in the first direction, and the difference between the inner diameter of the first tube 4 and the outer diameter of the first ring 11 is less than or equal to 4mm, so that the device for protecting the gasket can block the first ring 11 of the first gasket 1 from deforming in the radial direction of the first ring 11, the first ring 11 is not easily damaged by being pressed and broken by the screw head 21, and the second ring 12 is not easily deformed more at the broken position of the first ring 11, so that the device for protecting the gasket 1 can protect the gasket 1 from being damaged by assembly, and effectively reduce the possibility of damage to the gasket 1 and the gasket 2 when the gasket 1 is assembled; because the first ring body 11 is deformed to be in contact with the first pipe body 4, the first ring body 11 can be tightly abutted to the inner wall of the first pipe body 4 under some conditions, so that the first pipe body 4 is difficultly taken down after the assembly of the screw 2 and the gasket 1 is completed, the separation component 6 can be in contact with the object 10 to be connected when the gasket 1 is arranged between the screw head 21 of the screw 2 and the object 10 to be connected, the first pipe body 4 can be driven to move away from the object 10 to be connected along the axial direction of the first pipe body 4, the separation component 6 can be used for conveniently separating the first pipe body 4 from the gasket 1 after the assembly of the gasket 1 and the screw 2 is completed, and a worker can take down the first pipe body 4 in a labor-saving manner.

The following is a detailed description of the apparatus for protecting a gasket in the present application, and it should be understood that the following description is not intended to limit the embodiments of the present application in any way.

The gasket 1 in this embodiment may be a combination gasket, and the first ring body 11 may be a metal material with a certain ductility, such as copper or a copper alloy material (e.g., brass), and the like. The second collar body 12 may be a collar body of an elastic material, for example, the second collar body 12 may comprise a rubber ring. The first ring body 11 is sleeved outside the second ring body 12, and the two are coaxial. Taking the second ring body 12 as an example of a rubber ring, the rubber ring (i.e., the second ring body 12) can play a role of sealing when the gasket 1 is installed between the object 10 to be connected and the screw head 21 of the screw 2.

In the present application, the object 10 to be connected may be any object to be connected by the screw 2, preferably a housing of a device in which oil is present, for example, the object 10 to be connected may be a housing of a compressor, and the screw 2 may be a screw adapted to a threaded hole in the housing of the compressor. The object to be connected 10 includes a threaded hole, and the screw 2 enters the threaded hole to form threaded fit with the threaded hole when being installed.

In this embodiment, the inner diameter of the first tube 4 is larger than the outer diameter of the first ring 11, so that the second end of the first tube 4 can be abutted against the object 10 to be connected, and the inner wall of the first tube 4 surrounds the first ring 11.

Illustratively, the process of using the apparatus for protecting a gasket in the present application may be the following process: when the screw 22 of the screw 2 is screwed into the threaded hole but the screw head 21 is not yet in contact with the first ring 11 and the second ring 12, the first tube 4 is pressed against the object 10 to be connected, and the inner wall of the first tube 4 surrounds the first ring 11, for example, the first tube 4 is kept coaxial with the first ring 11, so that the first ring 11 forms a space with the inner wall of the first tube 4, then the screw head 21 is screwed by the screwing tool 3, the screw head 21 rotates to drive the screw 22 to continue to extend into the threaded hole until the screw head 21 is in contact with the first ring 11 and the second ring 12, and the screw head 21 is continued to be screwed by the screwing tool 3, so that the first ring 11 and the second ring 12 are pressed by the screw head 21, the first ring 11 is deformed in the first direction, and after the first ring 11 is deformed to contact with the inner wall of the first tube 4, the inner wall of the first tube 4 can form a barrier against the first ring 11 in the radial deformation of the first ring 11, so that the washer 1 is deformed to protect the first ring 11 from contact with the inner wall of the first ring 11, and the first ring 11 can be removed from the object 4, and the first ring 11 can be removed from the first ring 11, and the first ring can be removed from the object 4, and the first ring 11, and the first ring can be removed from the object 4, and the first ring 11 can be removed from the first ring 6, and the first ring can be easily.

In this embodiment, since the first ring 11 is hardly deformed when the screw head 21 does not press the first ring 11, a difference between an inner diameter of the first tube 4 and an outer diameter of the first ring 11 is less than or equal to 4mm, a certain degree of deformation of the first ring 11 can be allowed when the gasket 1 and the screw 2 are assembled until the first ring 11 contacts the first tube 4, and the first tube 4 deforms and forms a barrier to the deformation of the first ring 11 along a radial direction of the first ring 11, and in practice, it is found that the 4mm can satisfy a requirement for assembling most of the screw 2 and the gasket 1 (i.e., a combined gasket), and not only the unstable assembling of the screw 2 and the gasket 1 is rarely caused, but also the gasket 1 is rarely damaged, so that the purpose of protecting the gasket 1 can be effectively achieved.

It is understood with reference to fig. 1 that it shows the state when the first collar body 11 has been deformed into contact with the first tubular body 4, it being understood that it does not serve as any limitation to the present application.

The specific composition of the release member 6 is not particularly limited in this application. In some alternative embodiments, referring to fig. 1, the first tube 4 has a first thread segment 41 on its outer wall; the separation component 6 comprises a second pipe body 61, the second pipe body 61 extends along a first direction, the second pipe body 61 comprises a first end and a second end opposite to the first end along the first direction, a second thread section 62 is arranged on the outer wall of the second pipe body 61, the second pipe body 61 is sleeved on the outer side of the first pipe body 4, the second thread section 62 and the first thread section 41 form thread fit, and the second end of the second pipe body 61 is contacted with the object 10 to be connected when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected.

Optionally, the second tube 61 is sleeved outside the first tube 4, and the second tube 61 is coaxial with the first tube 4.

Specifically, after the first ring body 11 is deformed to contact with the inner wall of the first pipe body 4, when the second end of the second pipe body 61 contacts with the object 10 to be connected, the second pipe body 61 can rotate around the axis of the second pipe body 61 in the first rotating direction under the action of an external force (for example, manual application by a worker), and drive the first pipe body 4 to rotate around the axis of the first pipe body 4 in the second rotating direction, which is opposite to the second rotating direction, so that the position of the thread fit between the first thread section 41 and the second thread section 62 is changed, and the first pipe body 4 is driven to move away from the object 10 to be connected in the axial direction of the first pipe body 4.

For example, when the second thread section 62 is in threaded engagement with the first thread section 41, if the second pipe body 61 rotates clockwise and the advancing direction of the second pipe body 61 during the rotation is toward the object 10 to be connected, the second pipe body 61 is limited by the object 10 to be connected after contacting the object 10 to be connected during the rotation of the second pipe body 61, the first pipe body 4 is driven by the second pipe body 61 to rotate counterclockwise opposite to the clockwise direction, so as to change the position of the threaded engagement between the first thread section 41 and the second thread section 62, and is driven to move away from the object 10 to be connected along the axial direction of the first pipe body 4, and after the first pipe body 4 moves away from the object 10 to be connected along the axial direction of the first pipe body 4 by a certain distance, the inner wall of the first pipe body 4 can be separated from the contact with the first ring body 11 of the gasket 1. Similarly, if the second tube 61 is rotated counterclockwise and moved toward the object to be connected 10, the first tube 4 is rotated clockwise opposite to the counterclockwise by the second tube 61, and is driven to move away from the object to be connected 10 along the axial direction of the first tube 4. Obviously, such structure can reach the mesh that makes first body 4 and first body break away from the contact effectively, conveniently takes off first body 4, and the staff of being convenient for takes off first body 4 more laborsavingly.

It will be appreciated that the first pipe 4 is moved away from the object 10 to be connected in the axial direction of the first pipe 4, i.e. the first pipe 4 is moved in a direction opposite to the first direction.

In some alternative embodiments, the length of the first tube 4 is greater than the length of the second tube 61. In this implementation, the length of second body 61 can be not so long, it can be shorter than first body 4, the length of first body 4 also is the distance between the first end of first body 4 to the second end of first body 4, and the length of second body 61 also is the distance between the first end of second body 61 to the second end of second body 61, the length of first body 4 is greater than the length of second body 61 in this application, can guarantee to reach the mesh that makes first body 4 and first body 11 break away from the contact, conveniently take off first body 4, on being convenient for the staff more laborsavingly take off the basis of first body 4, reduce the material cost of second body 61.

In some alternative embodiments, the first thread section 41 includes a first end and a second end opposite to the first end in the first direction, the first end of the first thread section 41 is distal from the second end of the first tube 4, and the second end of the first thread section 41 is proximal to the second end of the first tube 4; the second threaded section 62 includes a first end and a second end opposite to the first end along the first direction, the first end of the second threaded section 62 is far away from the second end of the second tube 61, and the second end of the second threaded section 62 is close to the second end of the second tube 61; a first distance between the second end of the first thread segment 41 and the second end of the first tubular body 4 is smaller than a second distance between the second end of the second thread segment 62 and the second end of the second tubular body 61, and the difference between the second distance and the first distance is larger than the thickness value of the first ring body 11.

This is understood with reference to fig. 2, which shows a schematic representation of the first distance (denoted D1) and the second distance (denoted D2). As can be seen from fig. 2, in this embodiment, the maximum distance that the first pipe 4 moves away from the object 10 to be connected in the axial direction of the first pipe 4 is D2-D1 (i.e. the difference between the second distance D2 and the first distance D1), that is, after the second end of the first thread section 41 is in threaded engagement with the second end of the second thread section 62, the first pipe 4 cannot move continuously in the first direction, so that such a structure can prevent the first pipe 4 from moving away from the object 10 to be connected in the axial direction of the first pipe 4 too much to disengage from the second pipe 61, and since D2-D1 is greater than the thickness value of the first ring 11, such a structure can also effectively ensure that the first pipe 4 can disengage from the first ring 11 when the first pipe 4 moves away from the object 10 to be connected in the axial direction of the first pipe 4 to the maximum distance.

In the present application, the second end of the first pipe 4 contacts the object 10 to be connected, which may be manually pressed by a worker to make the second end of the first pipe 4 abut against the object 10 to be connected, for example, the second end of the first pipe 4 abuts against the object 10 to be connected; or the second end of the first tube 4 can be pressed against the object 10 to be connected with the help of other structures, which is not limited herein.

In some alternative embodiments, the means for protecting the gasket further comprises: the pressing assembly 5 comprises a first end and a second end, the second end of the pressing assembly 5 is in contact with the first end of the first pipe body 4 when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected, the pressing assembly 5 further comprises an object channel, the object channel is formed between the first end of the pressing assembly 5 and the second end of the pressing assembly 5 and is communicated with the first pipe body 4, the object channel is used for enabling the screwing tool 3 to enter the inside of the first pipe body 4 to be matched with the screw head 21 when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected, and the first end of the pressing assembly 5 is in contact with the screwing tool 3 when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected.

By such a structure, the first tube 4 can be pressed against the object 10 to be connected (such as a shell of a compressor) by the pressing component 5 while the screw head 21 of the screw 2 is driven by the driving tool 3 (such as a screwdriver and the like) when the gasket 1 and the screw 2 are assembled, so that the gasket 1 can be protected when the gasket 1 (namely, the combined gasket) and the screw 2 are assembled, the damage of the gasket 1 caused by the assembly can be avoided, and the possibility of the damage of the gasket 1 when the gasket 1 and the screw 2 are assembled can be effectively reduced.

The specific structure of the hold-down assembly 5 is not limited in this embodiment. Illustratively, referring to fig. 1, the pressing assembly 5 includes a first plate 51, a second plate 52, and a spring 53, the first plate 51 is connected to a first end of the spring 53, and the second plate 52 is connected to a second end of the spring 53; the first plate body 51 is provided with a first through hole 511, the second plate body 52 is provided with a second through hole 521, and the first through hole 511, the spring 53 and the second through hole 521 form an object channel; first plate 51 forms a first end of hold-down assembly 5 and second plate 52 forms a second end of hold-down assembly 5.

In this embodiment, the driving tool 3 may be manual (e.g., a manual screwdriver) or, in some embodiments, may be automatic, without limitation. As an alternative embodiment, the present embodiment provides a structure of a driving tool 3, and as shown in fig. 1, the driving tool 3 includes: the screw driver comprises a hydraulic portion 31 and a screwdriver bit 32, wherein the screwdriver bit 32 and the hydraulic portion 31 are connected with each other, the hydraulic portion 31 is used for driving the screwdriver bit 32 to rotate, the hydraulic portion 31 is in contact with the first plate body 51 when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected, and the screwdriver bit 32 enters the inner portion of the first tube body 4 to be matched with the screw head 21 when the gasket 1 is installed between the screw head 21 of the screw 2 and the object 10 to be connected.

Specifically, as understood with reference to fig. 1, in the object passage formed by the first through hole 511, the spring 53 and the second through hole 521, an inlet thereof may be the first through hole 511, an outlet thereof may be the second through hole 521, and a hollow portion of the spring 53 serves as a main body portion of the object passage. The second through hole 521 is connected to the first tube 4, and the screwdriver bit 32 of the driving tool 3 can pass through the object passage formed by the first through hole 511, the spring 53 and the second through hole 521 and extend into the first tube 4 to be engaged with the screw head 21 (for example, if the screw 2 is a socket head cap screw, a socket head hole is formed on the screw head 21, the head of the screwdriver bit 32 has a hexagonal shape corresponding to the socket head hole and can extend into the socket head hole to be engaged therewith; the same can be true if the screw 2 is another type of screw; the screw 2 can be a standard component). When the hydraulic part 31 drives the screwdriver head 32 to rotate, the hydraulic part 31 contacts with the first plate 51 and applies pressure to the first plate 51, so that the spring 53 is elastically deformed, the second plate 52 abuts against the first end of the first pipe 4, and the second end of the first pipe 4 abuts against the object 10 to be connected, thereby the screw 2 can be screwed to enable the screw rod 22 to continuously extend into a threaded hole of the object 10 to be connected (for example, a shell of a compressor).

Obviously, with such a structure, the first pipe 4 can be pressed against the object 10 to be connected (e.g., a shell of a compressor) by the pressing component 5 while the screw head 21 of the screw 2 is being screwed by the screwing tool 3 (e.g., a screwdriver or the like) when the gasket 1 and the screw 2 are assembled, so that the gasket 1 can be protected when the gasket 1 (i.e., the combined gasket) and the screw 2 are assembled, the damage of the gasket 1 caused by the assembly can be avoided, and the possibility of the damage of the gasket 1 when the gasket 1 and the screw 2 are assembled can be effectively reduced.

It should be noted that, in practical use, since when the hydraulic portion 31 rotates the screw head 32, the hydraulic portion 31 applies a torque to the first plate 51 in contact therewith, and therefore, the first plate 51, the spring 53 and the second plate 52 also have a tendency to rotate, in order to prevent the first plate 51, the spring 53 and the second plate 52 from rotating too much to interfere with the mounting washer 1 and the screw 2, the screwing may be suspended whenever the hydraulic portion 31 drives the screw head 32 to screw the screw head 21 to drive the screw 22 into the threaded hole by a predetermined distance (e.g., 1mm, or may be other values such as 0.5mm, 1.5mm, which is not limited and can be satisfied), when the first plate 51 has not rotated or has a small rotation amplitude, which does not interfere with the mounting washer 1 and the screw 2, when the screwing tool 3 (i.e., the hydraulic portion 31 and the screw head 32) is lifted in a direction opposite to the first direction (i.e., a direction away from the object 10 to be connected), the first plate 31 and the screw head 22 may be moved to the mounting washer 1 and the screw 2 again to be driven by the screw head 22, and then the first plate 51 and the screw head 31 may be moved to the mounting washer 22 (e., the screw head 31 and the screw head 31 may be moved again to the mounting washer 21, and the screw head) until the mounting washer 21 are moved to the screw head 31 and the screw head 31 are moved to the mounting washer 22, and the mounting head 31 are moved again.

In this embodiment, in some alternative embodiments, the second plate 52 may be fixedly connected to the first end of the first tube 4. The fastening means is not limited herein, and may be, for example, a threaded connection, a welding connection, or the like, as long as the requirement is satisfied.

It will be understood that the first tube 4, the second tube 61 and the screwdriver bit 32 can be made in different sizes and shapes to adapt to different sizes of the screw 2 and the washer 1, which will not be described in detail herein.

As can be seen from the above, in the device for protecting a washer in the embodiment of the present application, the inner diameter of the first tube 4 is greater than the outer diameter of the first ring body 11 of the washer 1, and the first tube 4 can block the first ring body 11 from deforming in the radial direction of the first ring body 11 when the screw head 21 presses the first ring body 11 against the object 10 to be connected so that the first ring body 11 deforms in the first direction, and the difference between the inner diameter of the first tube 4 and the outer diameter of the first ring body 11 is less than or equal to 4mm, so that the device for protecting a washer can block the first ring body 11 of the first washer 1 from deforming in the radial direction of the first ring body 11, the first ring body 11 is not easily damaged by being pressed by the screw head 21, and the second ring body 12 is not easily deformed at the fracture position of the first ring body 11, so that the device for protecting a washer 1 can be used to protect the washer 1 from being damaged by assembling the screw head 21, and the possibility of the washer 1 and the washer 2 being damaged by assembling is effectively reduced; because the first ring body 11 is deformed to be in contact with the first pipe body 4, the first ring body 11 can be tightly abutted to the inner wall of the first pipe body 4 under some conditions, so that the first pipe body 4 is difficultly taken down after the assembly of the screw 2 and the gasket 1 is completed, the separation component 6 can be in contact with the object 10 to be connected when the gasket 1 is arranged between the screw head 21 of the screw 2 and the object 10 to be connected, the first pipe body 4 can be driven to move away from the object 10 to be connected along the axial direction of the first pipe body 4, the separation component 6 can be used for conveniently separating the first pipe body 4 from the gasket 1 after the assembly of the gasket 1 and the screw 2 is completed, and a worker can take down the first pipe body 4 in a labor-saving manner.

It should be understood that expressions like "first", "second", "first" or "second" used in the embodiments of the present application may modify various components regardless of order and/or importance, but these expressions do not limit the corresponding components. The above description is only provided for the purpose of distinguishing components from other components.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (7)

1. A device for protecting washers, the washer (1) comprising a first ring body (11) and a second ring body (12), and the first ring body (11) being sleeved outside the second ring body (12), the second ring body (12) having an inner diameter greater than the diameter of a shank (22) of a screw (2), characterized in that the device for protecting washers comprises: the pipe comprises a first pipe body (4) and a disengaging assembly (6), wherein the first pipe body (4) is in threaded connection with the disengaging assembly (6);

the inner diameter of the first pipe body (4) is larger than the outer diameter of the first ring body (11), the first pipe body (4) extends along a first direction, the first pipe body (4) comprises a first end and a second end opposite to the first end along the first direction, and the first pipe body (4) blocks the first ring body (11) from deforming along the radial direction of the first ring body (11) when a screw head (21) of the screw (2) presses the first ring body (11) relative to an object (10) to be connected so that the first ring body (11) deforms along the first direction;

the disengaging assembly (6) is in contact with the object (10) to be connected when the gasket (1) is installed between a screw head (21) of the screw (2) and the object (10) to be connected, and the disengaging assembly (6) is used for driving the first pipe body (4) to move away from the object (10) to be connected along the axial direction of the first pipe body (4);

wherein the difference between the inner diameter of the first pipe body (4) and the outer diameter of the first ring body (11) is less than or equal to 4mm.

2. Device for protecting gaskets according to claim 1, characterized in that said first tubular body (4) is provided, on its outer wall, with a first threaded section (41);

the separation assembly (6) comprises a second pipe body (61), the second pipe body (61) extends along a first direction, the second pipe body (61) comprises a first end and a second end opposite to the first end along the first direction, a second threaded section (62) is arranged on the outer wall of the second pipe body (61), the second pipe body (61) is sleeved on the outer side of the first pipe body (4), the second threaded section (62) is in threaded fit with the first threaded section (41), and the second end of the second pipe body (61) is in contact with an object to be connected (10) when the gasket (1) is installed between a screw head (21) of a screw (2) and the object to be connected (10).

3. The means for protecting the gasket as claimed in claim 2, wherein the first threaded section (41) includes a first end and a second end opposite to the first end in the first direction, the first end of the first threaded section (41) being distant from the second end of the first pipe body (4), the second end of the first threaded section (41) being close to the second end of the first pipe body (4);

the second thread section (62) comprises a first end and a second end opposite to the first end along the first direction, the first end of the second thread section (62) is far away from the second end of the second pipe body (61), and the second end of the second thread section (62) is close to the second end of the second pipe body (61);

a first distance between a second end of the first thread section (41) and a second end of the first tubular body (4) is smaller than a second distance between a second end of the second thread section (62) and a second end of the second tubular body (61), and a difference between the second distance and the first distance is larger than a thickness value of the first ring body (11).

4. Device for protecting gaskets according to claim 2, characterized in that the length of said first tubular body (4) is greater than the length of said second tubular body (61).

5. The apparatus for protecting a gasket as claimed in claim 1, further comprising: a compression assembly (5), the compression assembly (5) comprising a first end and a second end, the second end of the compression assembly (5) being in contact with the first end of the first tube (4) when the washer (1) is mounted between the screw head (21) of the screw (2) and the object (10) to be connected, the compression assembly (5) further comprising an object passage formed between the first end of the compression assembly (5) and the second end of the compression assembly (5), the object passage being in communication with the first tube (4), the object passage being for entry of a screwing tool (3) into the interior of the first tube (4) to cooperate with the screw head (21) when the washer (1) is mounted between the screw head (21) of the screw (2) and the object (10) to be connected, and the first end of the compression assembly (5) being in contact with the screwing tool (3) when the washer (1) is mounted between the screw head (21) of the screw (2) and the object (10) to be connected.

6. An arrangement for protecting gaskets according to claim 5, characterized in that said pressing assembly (5) comprises a first plate (51), a second plate (52) and a spring (53), said first plate (51) being connected to a first end of said spring (53), said second plate (52) being connected to a second end of said spring (53);

the first plate body (51) is provided with a first through hole (511), the second plate body (52) is provided with a second through hole (521), and the first through hole (511), the spring (53) and the second through hole (521) form the object channel;

the first plate body (51) forms a first end of the hold-down assembly (5) and the second plate body (52) forms a second end of the hold-down assembly (5).

7. Device for protecting gaskets according to claim 6, characterized in that said second plate (52) is fixedly connected to a first end of said first tubular body (4).

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