CN216692619U

CN216692619U - Clamping sealing device and clamping sealing equipment

Info

Publication number: CN216692619U
Application number: CN202220122804.9U
Authority: CN
Inventors: 赖川
Original assignee: Shenzhen Wellsim Biomedical Technologies
Current assignee: Shenzhen Wellsim Biomedical Technologies
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-07
Anticipated expiration: 2032-01-18

Abstract

The application provides a clamping and sealing device for clamping and sealing a pipeline, which comprises a guide rail, at least one sliding block, a clamping element and a sealing element. The at least one sliding block is movably arranged on the guide rail, and the clamping element is arranged on each sliding block. The sealing element is arranged on the clamping element and is used for being sleeved on the outer surface of the pipeline to clamp and seal the pipeline. According to the clamping and sealing device, the driving element drives the sliding block to move, so that the clamping element and the sealing element are driven to move, the sealing element can be sleeved on the outer surface of a pipeline, the requirement on alignment precision is lowered, and automatic clamping and sealing of one or more sets of pipelines are realized; through the arrangement of the convex ring in the sealing element, material selection and the like, the friction force in the pipeline plugging process can be reduced, the durability is enhanced, and the sealing performance is reliable.

Description

Clamping sealing device and clamping sealing equipment

Technical Field

The present application relates to a clamping and sealing device and a clamping and sealing apparatus for clamping and sealing a pipeline.

Background

Pipeline seal usually uses O type sealing washer to carry out axial seal, is suitable for static operating mode. Under the dynamic working condition that the pipeline connection needs to be frequently disconnected or the pipeline needs to be frequently connected, the radial sealing mode of the O-shaped sealing ring has higher requirements on the alignment precision and the lubrication degree of the insertion port of the pipeline, and the durability of the O-shaped sealing ring is insufficient due to interference fit, friction and the like.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a clamping and sealing device capable of reducing the requirement of alignment accuracy, having long durability, and realizing automatic pipeline connection and sealing.

An embodiment of the present application provides a clamping and sealing device for clamping and sealing a pipeline, the clamping and sealing device includes:

a guide rail having a guide groove extending in a longitudinal direction of the guide rail, the guide rail having a center line extending in the longitudinal direction thereof;

at least one sliding block, which is provided with a guide block matched with the guide groove so that the sliding block can be movably arranged on the guide rail and can slide along the length direction of the guide rail, and the sliding block is provided with a central line extending along the length direction of the sliding block, a first end part and a second end part facing to the sliding direction;

the clamping element is arranged on the side surface close to the first end part of the sliding block, the end surface of the clamping element far away from the first end part is a third end surface, and a clamping joint protrudes outwards from the third end surface; the clamping element has a center line along the length direction, and the center line is not overlapped with a center line extending along the same direction of the guide rail and the sliding block; and

the sealing element is arranged on the clamping joint of the clamping element and is used for being sleeved on the outer surface of a pipeline to be sealed so as to clamp and seal the pipeline.

The clamping element and the sealing element are driven to move through the movement of the sliding block, so that the sealing element can be sleeved on the outer surface of the pipeline, the requirement on alignment precision is lowered, and the automatic clamping and sealing of one or more sets of pipelines are realized.

In one embodiment, the clamping element comprises a fastening body, the clamping head protrudes from an end face of the fastening body close to the upper surface to the third end face, and the fastening body is fixedly arranged on a side face of the sliding block. The sealing element is sleeved on the peripheral surface of the clamping head and is a tubular element.

In one embodiment, the sealing element includes a cylindrical body and a through hole penetrating through the cylindrical body, the through hole includes a first end and a second end that are opposite to each other, the first end is sleeved on the clamping joint, the second end is shrunk inwards to form a step-shaped end, and the aperture of the step-shaped end is smaller than that of the cylindrical body. The stepped end part is used for being sleeved on the outer surface of the pipeline.

In one embodiment, the diameter of the cylindrical body is larger than the outer diameter of the pipeline, and the diameter of the through hole of the stepped end is smaller than or equal to the outer diameter of the pipeline. Thus, the sealing element can be sleeved on the outer surface of the pipeline, so that the pipeline is clamped (connected) and sealed. Through setting up the echelonment end, can with the pipeline card dress in the echelonment end has further promoted sealed reliability, for the mode that uses O type sealing washer realizes automatic connecting line more easily.

In one embodiment, the material of the sealing element comprises rubber and/or Polytetrafluoroethylene (PTFE). The rubber is soft material, can slightly warp in the in-process with the pipeline grafting, produces sealed effect through the compression, and this kind of sealed mode is more durable than the mode of O type sealing washer. The polytetrafluoroethylene has a small friction coefficient, reduces the friction force in the pipeline plugging process, has long durability, can also provide enough sealing pretightening force, and has reliable sealing performance.

In one embodiment, the shore hardness of the rubber is 40-55 degrees, and the compression amount of the rubber is 0.4-0.6 mm. The hardness of the rubber is soft and can slightly deform, and the sealing element is sleeved on the surface of the pipeline to generate a sealing effect.

In one embodiment, the rubber has a shore hardness of 50 ° and a compression of 0.5 mm.

In one embodiment, the fastening body is provided with a screw hole and a positioning hole. The screw hole is used for fixing the fastening main body on the side face of the sliding block, and the positioning hole is used for positioning the fastening main body.

In one embodiment, the clamping and sealing device further comprises a driving element connected to the slider, and the driving element is configured to drive the slider to move on the guide rail, so as to drive the clamping element and the sealing element to move. The driving element can drive the sliding block to move and can apply a certain force to enable the sealing element to be sleeved on the outer surface of the pipeline more easily.

In one embodiment, the drive element comprises a motor, a pump or a spring.

The present application further provides a clamping and sealing device comprising a sealing element to be clamped and a clamping and sealing device as described above. The clamping and sealing device comprises a guide rail, two sliding blocks, two clamping elements and two sealing elements, wherein the two sliding blocks, the two clamping elements and the two sealing elements are arranged on the guide rail, one clamping element is arranged on the side surface of the first end part of each sliding block, and the clamping joint of each clamping element is connected with one sealing element. The sealing element to be clamped is arranged on the guide rail and is positioned between the two sealing elements, the sealing element to be clamped comprises a main body part and a containing part for containing the main body part, the main body part comprises a shell and two air pipe connectors extending from two opposite side walls of the shell respectively, and the two air pipe connectors extend out of the containing part respectively and are connected with the sealing elements respectively.

In one embodiment, the receiving portion is a rectangular frame structure having an opening at one end. And U-shaped gaps are formed in two opposite side walls of the rectangular frame structure, and the two air pipe joints respectively extend out of the U-shaped gaps and are respectively connected with one sealing element.

According to the clamping and sealing device, the driving element drives the sliding block to move, so that the clamping element and the sealing element are driven to move, the sealing element can be sleeved on the outer surface of a pipeline, the requirement on alignment precision is lowered, and automatic clamping and sealing of one or more sets of pipelines are realized; the stepped end part is arranged in the sealing element, the material is selected, and the like, so that the friction force in the pipeline plugging process can be reduced, the durability is enhanced, and the sealing performance is reliable.

Drawings

Fig. 1 is a schematic structural diagram of a clamping and sealing device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a clamping element according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a sealing element according to an embodiment of the present disclosure.

Fig. 4 is a schematic view of the sealing member shown in fig. 3 from another perspective.

Fig. 5 is a schematic cross-sectional view taken along V-V in fig. 3.

Fig. 6 is an exploded view of a sealing element to be clamped according to an embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of a sealing element to be clamped according to an embodiment of the present application.

Fig. 8 is a schematic view of a clamping and sealing device and a sealing element to be clamped cooperating according to an embodiment of the present application.

Description of the main elements

Clamping seal 100

Guide rail 10

Slider 30

Clamping element 50

Sealing element 70

Guide groove 11

Guide block 31

First end 301

Second end 302

Fastening body 51

Clamp connector 52

Screw hole 53

Positioning hole 54

Third end face 501

Cylinder body 71

Through hole 72

Stepped end 73

First end 721

Second end 722

Clamping sealing device 300

Sealing element 200 to be clamped

Main body 201

Receptacle 202

Case 2011

Air pipe joint 2012

Opening 2021

U-shaped notch 2022

The following detailed description will further describe embodiments of the present application in conjunction with the above-described figures.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application belong. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Embodiments of the present application are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate constructions) of the present application. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and/or tolerances are to be expected. Accordingly, embodiments of the present application should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. The regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of the device and are not intended to limit the scope of the present application.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 and 2, an embodiment of the present application provides a clamping and sealing device 100 for clamping and sealing a pipeline waiting to be clamped with a sealing element, wherein the clamping and sealing device 100 includes a guide rail 10, at least one slider 30, a clamping element 50 and a sealing element 70. The guide rail 10 has a guide groove 11 extending in the longitudinal direction of the guide rail, and the guide rail 10 has a center line extending in the longitudinal direction thereof. The slider 30 has a guide block 31 engaged with the guide groove 11 so that the slider 30 is movably disposed on the guide rail 10 and slides in a length direction of the guide rail 10. The slider 30 has a center line extending in the longitudinal direction thereof, and first and second ends 301 and 302 facing in the sliding direction. The clamping element 50 is disposed on a side surface close to the first end 301 of the slider 30, an end surface of the clamping element 50 far away from the first end 301 is a third end surface 501, and the clamping element 50 protrudes outward from the third end surface 501 to form a clamping head 52. The clamping member 50 has a center line in a length direction that does not overlap with a center line extending in the same direction of the guide rail 10 and the slider 30. The sealing element 70 is disposed on the clamping head 52 of the clamping element 50, and the sealing element 70 is used for sleeving the outer surface of the pipeline to be sealed so as to clamp and seal the pipeline.

The clamping element 50 and the sealing element 70 are driven to move towards the pipeline by the movement of the sliding block 30 on the guide rail 10, so that the sealing element 70 can be sleeved on the outer surface of the pipeline, the requirement on alignment precision is reduced, and the automatic clamping and sealing of one or more sets of pipelines can be realized by arranging one or more sliding blocks 30 (the clamping element 50 and the sealing element 70).

In the present embodiment, the number of the slider 30, the clamping member 50, and the sealing member 70 is two. Of course, the number of sliders 30, clamping elements 50 and sealing elements 70 can also be one, three or more than three.

Referring to fig. 2, in some embodiments, the clamping element 50 may include a fastening body 51 and a clamp head 52. The clamping head 52 protrudes from an end surface of the fastening body 51 close to the upper surface to the third end surface 501, and the fastening body 51 is fixedly arranged on a side surface of the slider 30 (see fig. 1). The fastening body 51 is substantially rectangular and the clamping head 52 is substantially cylindrical. Of course, the fastening body 51 and the clamp head 52 may also have other shapes.

Further, the fastening body 51 is provided with a screw hole 53 and a positioning hole 54. The screw hole 53 may be used to fix the fastening body 51 to the side of the slider 30, and the positioning hole 54 may be used to position the fastening body 51. The locating holes 54 may be, but are not limited to, pin holes. In this embodiment, the number of the screw holes 53 and the positioning holes 54 is two.

The shape of the sealing element 70 is adapted to the shape of the clamp 52 and the pipe, and in the case of a clamp 52 that is substantially cylindrical and a pipe that is substantially annular in cross-section, the sealing element 70 is in this embodiment a tubular member. Referring to fig. 3 and 4, the sealing member 70 may include a cylindrical body 71 and a through hole 72 penetrating the cylindrical body 71. The through hole 72 includes a first end 721 and a second end 722 that are oppositely disposed, the first end 721 is sleeved on the outer circumferential surface of the clamp connector 52 (see fig. 2) and completely covers the outer circumferential surface of the clamp connector 52, and the second end 722 is used for being sleeved on the outer surface of the pipeline to be sealed. When the connection and sealing are performed, the central axis of the through hole 72 and the central axis of the pipe are substantially on the same horizontal line.

Further, the inner diameter of the through hole 72 is larger than the outer diameter of the pipe, for example, the inner diameter of the through hole 72 may be larger than the outer diameter of the pipe by 1 mm. In this way, the sealing element 70 is sleeved on the outer surface of the pipeline through the through hole 72, so as to connect, clamp and seal the pipeline.

Referring to fig. 4 and 5, in some embodiments, the second end 722 (the end near the pipe) of the through hole 72 is inwardly contracted to form a stepped end 73, and the diameter of the stepped end 73 is smaller than that of the cylindrical body 71. The bore diameter of the cylindrical body 71 is larger than the outer diameter of the pipe, and the inner diameter of the stepped end 73 is smaller than or equal to the outer diameter of the pipe. By arranging the stepped end part 73, the pipeline can be clamped in the stepped end part 73, the sealing reliability is further improved, and compared with a mode of using an O-shaped sealing ring, the pipeline can be connected automatically more easily.

In some embodiments, the material of the sealing element may be, but is not limited to, rubber, Polytetrafluoroethylene (PTFE), and the like. The rubber is soft material, can slightly warp in the in-process with the pipeline grafting, produces sealed effect through the compression, and this kind of sealed mode is more durable than the mode of O type sealing washer. The polytetrafluoroethylene has a small friction coefficient, reduces the friction force in the pipeline plugging process, has long durability, can also provide enough sealing pretightening force, and has reliable sealing performance.

Further, the Shore hardness of the rubber can be 40-55 degrees, and the compression amount of the rubber can be 0.4-0.6 mm. The hardness of the rubber is soft and can slightly deform, and the sealing element is sleeved on the surface of the pipeline to generate a sealing effect.

Further, the shore hardness of the rubber may be 50 °, and the compression amount of the rubber may be 0.5 mm.

In some embodiments, the pinch seal device 100 further includes a drive element coupled to the slider 30. The driving element is used for driving the sliding block to move on the guide rail, so that the clamping element and the sealing element are driven to move. The driving element can drive the sliding block to move and can apply a certain force to enable the sealing element to be sleeved on the outer surface of the pipeline more easily.

Further, the driving element may be, but is not limited to, a motor, a pump, a spring, or the like.

Referring to fig. 6 to 8, the present application further provides a clamping and sealing device 300, which includes the sealing element 200 to be clamped and the clamping and sealing device 100 as described above. In one embodiment, as shown in fig. 8, the clamping and sealing device 100 includes a guide rail 10, two sliders 30 disposed on the guide rail 10, two clamping elements 50, and two sealing elements 70. The side of the first end 301 of each of the sliding blocks 30 is provided with one of the clamping elements 50, and the clamping head 52 of each of the clamping elements 50 is connected with one of the sealing elements 70. The sealing element 200 to be clamped is arranged on the guide rail 10 between the two sealing elements 70. As shown in fig. 6, the sealing member 200 to be clamped may include a body portion 201 and a receiving portion 202 receiving the body portion 201. The body 201 may include a housing 2011 and two air tube connectors 2012 extending from opposite sidewalls of the housing 2011. The accommodating portion 202 is a substantially rectangular frame structure having an opening 2021 at one end, and two opposite sidewalls thereof are provided with U-shaped notches 2022. The main body 201 can be accommodated in the accommodating portion 202 through the opening 2021, two air pipe joints 2012 of the main body 201 are respectively erected on the accommodating portion 202 through the U-shaped notch 2022, and the air pipe joints 2012 respectively extend out of the U-shaped notch 2022.

Referring to fig. 8, the sealing element 200 to be clamped is placed on the guide rail 10 between two sealing elements 70, and two air pipe connectors 2012 are respectively opposite to one sealing element 70. The height of the receiving portion 202 can be adjusted so that the central axis of the air pipe fitting 2012 is substantially on the same horizontal line as the central axis of the sealing member 70. The inner diameter of the through hole 72 of the sealing member 70 is substantially 1mm larger than the outer diameter of the air pipe fitting 2012. The drive element is turned on, moving the slider 30 and thus the clamping element 50 and the sealing element 70 towards the sealing element 200 to be clamped. The second end 722 of the sealing element 70 contacting the air pipe joint 2012 is slightly deformed by the driving of the driving device, so that the sealing element 70 can be sleeved on the outer surface of the air pipe joint 2012. With further movement of the sealing member 70, the air tube fitting 2012 is finally retained in the stepped end 73 of the sealing member 70, completing the clamping and sealing of the sealing member 200 to be clamped.

According to the clamping and sealing device 100, the driving element drives the sliding block 30 to move, so that the clamping element 50 and the sealing element 70 are driven to move, the sealing element 70 can be sleeved on the outer surface of a pipeline, the requirement on alignment precision is lowered, and automatic clamping and sealing of one or more sets of pipelines are realized; the stepped end part 73 is arranged in the sealing element 70, and materials are selected, so that friction force in the pipeline plugging process can be reduced, the durability is enhanced, and the sealing performance is reliable.

The above description is a few specific embodiments of the present application, but in practical applications, the present application is not limited to these embodiments. Other modifications and variations to the technical concept of the present application should fall within the scope of the present application for those skilled in the art.

Claims

1. A clamping and sealing device for clamping and sealing a pipeline, comprising:

at least one slide block, it has guide block cooperating with said guide slot, so that the said slide block can be set up on the said guide rail movably and slide along the length direction of the said guide rail, the said slide block has centre line extending along its length direction, and face first end and second end along sliding direction;

the clamping element is arranged on the side surface close to the first end part of the sliding block, the end surface of the clamping element far away from the first end part of the sliding block is a third end surface, and a clamping joint protrudes outwards from the third end surface; the clamping element has a center line along the length direction, and the center line is not overlapped with a center line extending along the same direction of the guide rail and the sliding block; and

2. A clamping and sealing device as claimed in claim 1, wherein said clamping element includes a clamping body, said clamping head projects from an end face of said clamping body adjacent to said upper surface clamping body beyond said third end face, said clamping body is fixedly disposed on a side face of said slider, and said sealing element is fitted over an outer peripheral surface of said clamping head.

3. The clamping and sealing device of claim 2, wherein the sealing element comprises a cylindrical body and a through hole penetrating through the cylindrical body, the through hole comprises a first end and a second end which are arranged oppositely, the first end is sleeved on the clamping joint, the second end is contracted inwards to form a step-shaped end, the diameter of the step-shaped end is smaller than that of the cylindrical body, and the step-shaped end is sleeved on the outer surface of the pipeline.

4. A holding and sealing device as claimed in claim 3 wherein the bore of said cylindrical body is larger than the outer diameter of said conduit and the bore of said through bore of said stepped end is smaller than or equal to the outer diameter of said conduit.

5. The grip seal of claim 4, wherein the material of the sealing element comprises rubber and/or polytetrafluoroethylene.

6. The clamping seal of claim 2 wherein said fastening body defines a threaded bore for securing said fastening body to a side of said slider and a locating bore for locating said fastening body.

7. The grip seal of claim 1 further comprising a drive element coupled to the at least one slider, the drive element configured to drive the at least one slider on the rail to move the grip element and the seal element.

8. A holding and sealing device according to claim 7, wherein said drive element comprises a motor, a pump or a spring.

9. A clamping and sealing device, comprising a sealing element to be clamped and a clamping and sealing device according to any one of claims 1 to 8, the clamping and sealing device comprising a guide rail, two sliders arranged on the guide rail, two clamping elements and two sealing elements, one clamping element being arranged on a side of the first end of each slider, the clamping head of each clamping element being connected to one sealing element; the sealing element to be clamped is arranged on the guide rail and located between the two sealing elements, the sealing element to be clamped comprises a main body part and a containing part for containing the main body part, the main body part comprises a shell and two air pipe joints extending from two opposite side walls of the shell respectively, and the two air pipe joints extend out of the containing part respectively and are connected with the sealing elements respectively.

10. The clamp-sealing device of claim 9, wherein said receptacle is a rectangular frame structure having an opening at one end, said rectangular frame structure having U-shaped notches on opposite sidewalls thereof, said two air tube connectors extending from said U-shaped notches respectively and being connected to one of said sealing elements respectively.