Auxiliary device

Abstract

The invention provides an auxiliary device, comprising: a housing assembly comprising an internal cavity and a first end portion used for enclosing the internal cavity; a preset opening communicated with the inner cavity is formed in the first end part; the membrane assembly is arranged in the inner cavity and comprises a stack of membranes; along the membrane distribution direction of the membrane assembly, two end membranes of the membrane assembly are respectively a front-end membrane and a rear-end membrane; the front-end diaphragm is in contact with the inner side wall surface of the first end part; wherein the preset opening is used for placing a to-be-mounted sheet; and by changing the pressure of the inner cavity, acting force is applied to the membrane assembly from the rear-end membrane side, so that the front-end membrane passes through the preset opening and carries the to-be-mounted piece to be ejected to the to-be-mounted position on the mounting substrate.

Description

Technical Field

[0001] The invention relates to the technical field of strain gauge installation, and in particular to an auxiliary device. Background Art

[0002] Strain gauges are sensors used to measure surface strain of objects. They are widely used in material testing, structural health monitoring, and various mechanical engineering fields. The working principle of strain gauges is to stick them on the surface of the object being measured. When the object is deformed by external force, the strain gauge deforms accordingly, and the strain is reflected by the change in resistance. The measurement accuracy and reliability of strain gauges are crucial to ensure the accuracy of test results.

[0003] In the air conditioning industry, the application of strain gauges is particularly important. The pipelines of the air conditioning system will be subjected to various stresses during long-term operation, such as temperature changes, pressure fluctuations, structural vibrations, etc. The accumulation of these stresses may cause cracks and leaks in the pipelines, thereby affecting the normal operation and safety of the air conditioning system. Therefore, regular testing of the operating stress and strain of the air conditioning pipelines is one of the important measures to prevent and reduce failures.

[0004] However, air conditioning pipelines have complex structures and compact spaces, which brings many inconveniences to the installation of strain gauges.

[0005] The traditional strain gauge installation method mainly relies on manual pasting, which often leads to problems such as difficult positioning, poor installation quality, low work efficiency, low test result accuracy, and poor test reproducibility. Specifically:

[0006] 1. Inaccurate positioning: When manually pasting, due to the limitations of the human eye and the operating environment, it is difficult to ensure the accurate placement of the strain gauge at the specified position, which leads to deviation in the test data;

[0007] 2. Unstable pasting quality: During manual operation, it is difficult to control the applied pressure and time. Uneven pressure or too short pasting time will lead to poor contact between the strain gauge and the measured surface, thus affecting the accuracy of the test results.

[0008] 3. Low work efficiency: Manual pasting takes a long time, especially in complex tests that require a large number of strain gauges, and manual pasting has low efficiency;

[0009] 4. Interference from human factors: The skills and experience of different operators vary greatly, resulting in uneven pasting effects, making it difficult to achieve standardized operations, resulting in poor reproducibility of test results;

[0010] 5. Space limitation: The air conditioning pipeline structure is complex and the space is compact, making manual pasting difficult, which increases the difficulty and uncertainty of testing. Summary of the invention

[0011] The main purpose of the present invention is to provide an auxiliary device to facilitate the pasting of strain gauges.

[0012] In order to achieve the above-mentioned purpose, the present invention provides an auxiliary device, which includes: a shell assembly, including an internal cavity and a first end, the first end is used to enclose the internal cavity; a preset opening connected to the internal cavity is provided on the first end; a membrane assembly is arranged in the internal cavity and includes a stack of diaphragms; along the diaphragm distribution direction of the membrane assembly, the two end diaphragms of the membrane assembly are respectively a front end diaphragm and a rear end diaphragm; the front end diaphragm is in contact with the inner wall surface of the first end; wherein the preset opening is used to place the piece to be installed; by changing the pressure of the internal cavity, a force is applied to the membrane assembly from the rear end diaphragm side, so that the front end diaphragm passes through the preset opening and is ejected to the installation position on the installation base with the piece to be installed.

[0013] Furthermore, a positioning component is provided on the outer wall surface of the first end portion, and the positioning component is used to locate a position to be installed on the installation base.

[0014] Furthermore, the positioning component is used to send a light signal to the installation base to project a light projection on the installation base, so as to locate the position to be installed through the light projection.

[0015] Furthermore, the positioning assembly includes a plurality of positioning members, each positioning member is used to send a light signal to the mounting base to project a light projection on the mounting base; the light projections of the plurality of positioning members on the mounting base are distributed along the circumference of the position to be installed.

[0016] Furthermore, a receiving groove and a buckle are provided on the outer wall surface of the first end, and the receiving groove is used to receive the wire connected to the mounting plate; the buckle has a connecting end and a free end arranged opposite to each other; the connecting end of the buckle is connected and fixed to the outer wall surface of the first end, and is located on one side of the receiving groove, so that the free end of the buckle can be movably arranged, so that the buckle has a blocking state and a yielding state; when the buckle is in the blocking state, part of the buckle is located outside the receiving groove to stop the wire in the receiving groove; when the buckle is in the yielding state, the buckle is away from the receiving groove.

[0017] Furthermore, the auxiliary device also includes an extrusion piece, at least a portion of which is made of a flexible material so that at least a portion of the extrusion piece can be deformed; the extrusion piece is located on a side of the membrane assembly away from the first end so as to generate a force on the extrusion piece by changing the pressure of the internal cavity, thereby causing at least a portion of the extrusion piece to deform; when at least a portion of the extrusion piece is squeezed and deformed, the extrusion piece contacts the rear end diaphragm to apply a force to the membrane assembly from the rear end diaphragm side.

[0018] Furthermore, the auxiliary device also includes a support, the support includes a main body and a connecting rod, one end of the connecting rod is fixedly connected to the main body; the membrane assembly has a through connecting hole along the stacking direction of its diaphragms; a guide hole is opened on the first end; the connecting rod is inserted into the connecting hole and the guide hole, and passes through the guide hole; the main body has a through hole, which passes through the main body along the stacking direction of the diaphragms of the membrane assembly; the extrusion piece is located on the side of the main body away from the connecting rod; when at least part of the extrusion piece is extruded and deformed, part of the extrusion piece contacts the rear end diaphragm through the through hole to generate a force on the membrane assembly.

[0019] Furthermore, the extrusion piece is a columnar structure, and the axial direction of the extrusion piece is parallel to or the same as the stacking direction of the membrane sheets of the membrane assembly.

[0020] Furthermore, a first positioning portion is provided on the cavity wall of the internal cavity, a second positioning portion is provided on the main body, and a third positioning portion is provided on the extrusion member; the first positioning portion is a strip-shaped positioning protrusion, and the extension direction of the positioning protrusion is parallel to the diaphragm stacking direction of the membrane assembly; the second positioning portion and the third positioning portion are both positioning grooves; or, the first positioning portion is a strip-shaped positioning groove, and the extension direction of the positioning groove is parallel to the diaphragm stacking direction of the membrane assembly; the second positioning portion and the third positioning portion are both positioning protrusions; the positioning protrusion is movably arranged in the positioning groove along the diaphragm stacking direction of the membrane assembly.

[0021] Furthermore, the internal cavity includes a first cavity portion and an empty second cavity portion; the distribution direction of the first cavity portion and the second cavity portion is parallel to or the same as the stacking direction of the diaphragms of the membrane assembly; the first cavity portion is used to accommodate the membrane assembly, the support and the extrusion member; and a force is generated on the extrusion member by changing the pressure of the second cavity portion.

[0022] Furthermore, the pressure of the second cavity is changed by inflating air into the second cavity or extracting air from the second cavity.

[0023] Furthermore, the shell assembly includes a first shell and a second shell, the first shell has a first end and a second end arranged opposite to each other, and the second shell has a first end and a second end arranged opposite to each other; the first end of the first shell is the first end of the shell assembly, and the second end of the first shell is detachably connected to the first end of the second shell so that the first shell and the second shell together form an internal cavity; the first shell is used to accommodate the membrane assembly, the support and the extrusion part.

[0024] Furthermore, the auxiliary device also includes a pressure regulating component, and a vent of the pressure regulating component is communicated with the second cavity portion so as to inflate air into the second cavity portion or extract air from the second cavity portion.

[0025] Furthermore, the shell assembly has a second end portion arranged opposite to the first end portion; the auxiliary device also includes a length adjustment component having a cylindrical structure, the first end of the length adjustment component being connected to the second end of the shell assembly, and the second end of the length adjustment component being connected to the pressure adjustment component, so that the vent of the pressure adjustment component is connected to the second cavity portion through the cylindrical cavity of the length adjustment component.

[0026] Furthermore, the mounting base is a preset tube body, and the outer side wall of the first end portion is recessed toward the inner cavity so that the outer side wall of the first end portion is matched with the outer peripheral wall of the preset tube body.

[0027] Furthermore, the gauge to be installed is a strain gauge.

[0028] Applying the technical solution of the present invention, the auxiliary device includes a shell assembly and a membrane assembly; the shell assembly includes an internal cavity and a first end, the first end is used to enclose the internal cavity; a preset opening connected to the internal cavity is provided on the first end; the membrane assembly is arranged in the internal cavity, and the membrane assembly includes a stack of diaphragms; along the diaphragm distribution direction of the membrane assembly, the two end diaphragms of the membrane assembly are respectively a front end diaphragm and a rear end diaphragm; the front end diaphragm is in close contact with the inner wall surface of the first end, that is, the front end diaphragm is arranged against the inner wall surface of the first end.

[0029] The preset opening is used to place the piece to be installed; by changing the pressure of the internal cavity, a force is applied to the membrane assembly from the rear end diaphragm side to pop out the front end diaphragm from the preset opening, and in the process of the front end diaphragm popping out from the preset opening, the front end diaphragm will be ejected together with the piece to be installed to the installation position on the installation base. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 A schematic diagram of the explosion structure of the auxiliary device according to the present invention is shown;

[0032] Figure 2 A schematic structural diagram of an auxiliary device according to the present invention is shown;

[0033] Figure 3 shows a longitudinal cross-sectional view of the auxiliary device according to the present invention;

[0034] Figure 4 shows another longitudinal sectional view of the auxiliary device according to the present invention;

[0035] Figure 5 A schematic diagram showing the structure of a support of an auxiliary device according to the present invention is shown;

[0036] Figure 6 A schematic diagram showing the structure of a membrane assembly of an auxiliary device according to the present invention is shown;

[0037] Figure 7 A schematic diagram showing the matching structure of the membrane assembly and the support of the auxiliary device according to the present invention is shown;

[0038] Figure 8 Shows Figure 7 A side view of the matching structure of the membrane assembly and the support;

[0039] Fig. 9 Shows Figure 8 The right view of the matching structure of the membrane assembly and the support;

[0040] Fig.10 A schematic structural diagram of a first housing of an auxiliary device according to the present invention is shown;

[0041] Fig.11 Shows Fig.10 A side structural diagram of the first shell in FIG.

[0042] Fig.12 Shows Fig.10 A schematic diagram of the inner cavity structure of the first shell;

[0043] Fig.13 Shows Fig.11 A right view structural diagram of the first shell in FIG.

[0044] Fig.14 Shows Fig.11 A left view of the first shell in FIG.

[0045] Fig.15 A schematic diagram showing the structure of an extruded part of an auxiliary device according to the present invention is shown;

[0046] Fig.16 Shows Fig.15 A side view of the extrusion in FIG.

[0047] Fig.17 A schematic structural diagram of a second housing of an auxiliary device according to the present invention is shown;

[0048] Fig.18 Shows Fig.17 A longitudinal sectional view of the second shell in FIG.

[0049] Fig.19 Shows Fig.17 A side structural diagram of the second shell in FIG.

[0050] The above drawings include the following reference numerals:

[0051] 10. Shell assembly; 101. Internal cavity; 1011. First cavity; 1012. Second cavity;

[0052] 11. first housing; 111. preset opening; 112. guide hole; 113. first positioning portion; 114. first end portion; 1141. receiving groove; 1142. buckle; 115. first external thread;

[0053] 12. second housing; 121. communication opening; 122. internal thread; 123. second external thread; 13. sealing gasket;

[0054] 21. membrane assembly; 211. connection hole; 22. extrusion piece; 221. third positioning portion; 23. support; 231. main body; 2311. through hole; 2312. second positioning portion; 232. connecting rod;

[0055] 30. Positioning assembly; 31. Positioning piece; 40. Pressure adjustment component; 50. Length adjustment component. DETAILED DESCRIPTION

[0056] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0057] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] The present invention provides an auxiliary device, please refer to Figures 1 to 19The auxiliary device includes a shell assembly 10 and a membrane assembly 21; the shell assembly 10 includes an internal cavity 101 and a first end 114, the first end 114 is used to enclose the internal cavity 101; the first end 114 is provided with a preset opening 111 connected to the internal cavity 101; the membrane assembly 21 is arranged in the internal cavity 101, and the membrane assembly 21 includes a stack of diaphragms; along the diaphragm distribution direction of the membrane assembly 21, the two end diaphragms of the membrane assembly 21 are respectively a front end diaphragm and a rear end diaphragm; the front end diaphragm is in close contact with the inner wall surface of the first end 114, that is, the front end diaphragm is arranged against the inner wall surface of the first end 114.

[0060] The preset opening 111 is used to place the sheet to be installed; by changing the pressure of the internal cavity 101, a force is applied to the membrane assembly 21 from the rear membrane side to eject the front membrane from the preset opening 111, and in the process of the front membrane ejecting from the preset opening 111, the front membrane will eject the sheet to be installed to the installation position on the installation base together with the sheet to be installed. That is, the auxiliary device of the present application is an auxiliary device for installing the sheet to be installed.

[0061] In a specific implementation process, the sheet to be installed is placed from the outside of the first end portion 114 .

[0062] When the front membrane sheet of the membrane assembly 21 is ejected, the next membrane sheet forms a new front membrane sheet. All membrane sheets of the membrane assembly 21 are ejected in sequence.

[0063] Optionally, the piece to be installed can be stuck in the preset opening 111 .

[0064] In the specific implementation process, the side of the sheet to be installed that is away from the front membrane is fully coated with adhesive, and the adhesive overflowing from the periphery of the sheet to be installed makes the sheet to be installed and the front membrane stick together. When the front membrane is ejected to the installation position on the installation base with the sheet to be installed, the sheet to be installed is bonded to the installation base. That is, the auxiliary device of the present application is an auxiliary device for sticking the sheet to be installed.

[0065] Optionally, after the adhesive is cured, the front-end membrane sheet may be torn off from the sheet to be installed, or the front-end membrane sheet may not be torn off, according to actual needs.

[0066] The provision of the diaphragm can also prevent the adhesive on the sheet to be installed from overflowing onto other parts of the installation base or onto components located around the installation base.

[0067] Optionally, the adhesive is glue.

[0068] Specifically, the membrane sheet of the membrane assembly 21 is a non-stick membrane.

[0069] Specifically, the membrane of the membrane assembly 21 is made of soft material, so the front membrane can be ejected through the preset opening 111 .

[0070] Optionally, the membrane of the membrane assembly 21 is a transparent membrane.

[0071] Optionally, the sheet to be installed is a strain gauge; and the installation base is a preset tube body.

[0072] Specifically, the preset opening 111 is an extrusion opening.

[0073] In the present application, a positioning assembly 30 is disposed on the outer wall surface of the first end portion 114 , and the positioning assembly 30 is used to locate a position to be installed on the installation base.

[0074] In the specific implementation process, the positioning assembly 30 is used to locate the installation position on the installation base, and then the pressure of the internal cavity 101 is changed so that the front diaphragm is ejected with the installation piece to the installation position on the installation base.

[0075] In the present application, the positioning component 30 is used to send a light signal to the installation base to project a light projection on the installation base, so as to locate the position to be installed through the light projection.

[0076] Specifically, the positioning assembly 30 includes a plurality of positioning members 31, each positioning member 31 is used to send an optical signal to the mounting base to project a light projection on the mounting base; the light projections of the plurality of positioning members 31 on the mounting base are distributed along the circumference of the position to be installed.

[0077] Specifically, a plurality of positioning members 31 are distributed around the circumference of the preset opening 111 .

[0078] Optionally, the light projections of the plurality of positioning members 31 on the mounting base are evenly distributed along the circumference of the position to be mounted, that is, the plurality of positioning members 31 are evenly distributed around the circumference of the preset opening 111 .

[0079] Optionally, the positioning member 31 is a positioning infrared lamp, which can emit a linear laser.

[0080] Alternatively, if Fig.14 As shown, the positioning assembly 30 includes four positioning members 31, and the light signals emitted by the four positioning members 31 form a "cross" positioning at the position to be installed.

[0081] In the present application, a wire is connected to the piece to be installed; a receiving groove 1141 and a buckle 1142 are provided on the outer wall surface of the first end portion 114, and the receiving groove 1141 is used to receive the wire connected to the piece to be installed.

[0082] The buckle 1142 has a connection end and a free end that are arranged opposite to each other; the connection end of the buckle 1142 is connected and fixed to the outer wall surface of the first end portion 114, so that the free end of the buckle 1142 can be movably arranged. The connection end of the buckle 1142 is located at one side of the receiving groove 1141, so that the buckle 1142 has a blocking state and a yielding state; when the buckle 1142 is in the blocking state, part of the buckle 1142 is located outside the receiving groove 1141 to stop the wire in the receiving groove 1141 and prevent the wire in the receiving groove 1141 from escaping from the receiving groove 1141; when the buckle 1142 is in the yielding state, the buckle 1142 is away from the receiving groove 1141.

[0083] In the specific implementation process, the initial state of the buckle 1142 is the blocking state; after the piece to be installed is placed at the preset opening 111, the buckle 1142 is changed to the yielding state, so that the wire connected to the piece to be installed is placed into the receiving groove 1141, and then the buckle 1142 is restored to the blocking state. When the front membrane is ejected with the piece to be installed, the wire in the receiving groove 1141 can break free from the stopping force of the buckle 1142 and escape from the receiving groove 1141.

[0084] It should be noted that when the buckle 1142 is subjected to a force from the inside of the receiving groove 1141 to the outside, the wire in the receiving groove 1141 is easy to slide out; when the buckle 1142 is subjected to a force from the outside of the receiving groove 1141 to the inside, the wire remains in a blocked state.

[0085] Optionally, the receiving groove 1141 is a strip-shaped groove; a plurality of buckles 1142 are distributed along the extending direction of the receiving groove 1141 .

[0086] Optionally, the accommodating groove 1141 has a first end and a second end that are relatively arranged; the first end of the accommodating groove 1141 extends to the inner wall of the preset opening 111 so that the first end of the accommodating groove 1141 is connected to the preset opening 111; the second end of the accommodating groove 1141 extends to the outer peripheral edge of the outer wall surface of the first end portion 114.

[0087] Optionally, there are multiple accommodating grooves 1141 ; multiple buckles 1142 are distributed along the extension direction of each accommodating groove 1141 .

[0088] In the present application, the auxiliary device further includes an extrusion member 22 , at least a portion of which is made of a flexible material, so that at least a portion of the extrusion member 22 can be deformed.

[0089] Along the diaphragm stacking direction of the membrane assembly 21 , the extrusion member 22 is located on a side of the membrane assembly 21 away from the first end 114 ; by changing the pressure of the internal cavity 101 , a force is applied to the extrusion member 22 , thereby causing at least a portion of the extrusion member 22 to deform.

[0090] By increasing the pressure in the internal cavity 101 to generate an extrusion force on the extrusion member 22, at least a portion of the extrusion member 22 is deformed due to the extrusion; when at least a portion of the extrusion member 22 is deformed due to the extrusion, the extrusion member 22 contacts the rear end diaphragm, so that the extrusion member 22 applies a force to the membrane assembly 21 from the rear end diaphragm side, thereby popping the front end diaphragm out of the preset opening 111.

[0091] After the front diaphragm is ejected to the installation position on the installation base together with the to-be-installed piece, the pressure of the internal cavity 101 is reduced to eliminate the extrusion force acting on the extrusion member 22, and a suction force is generated on the extrusion member 22, thereby causing at least a portion of the extrusion member 22 to deform, thereby restoring the extrusion member 22 to its initial state. After the extrusion member 22 is restored to its initial state, the force acting on the membrane assembly 21 by the extrusion member 22 disappears.

[0092] In the present application, the auxiliary device further includes a support 23, the support 23 includes a main body 231 and a connecting rod 232, one end of the connecting rod 232 is fixedly connected to the main body 231, and the other end of the connecting rod 232 is a free end.

[0093] The membrane assembly 21 has a through connection hole 211 along the stacking direction of its diaphragms; a guide hole 112 is opened on the first end 114, and the guide hole 112 passes through the inner wall and the outer wall of the first end 114; the connecting rod 232 is penetrated in the connection hole 211 and the guide hole 112, and passes out from the guide hole 112, at this time, the axial direction of the connecting rod 232 is parallel to or the same as the stacking direction of the diaphragms of the membrane assembly 21.

[0094] The main body 231 has a through hole 2311, which passes through the main body 231 along the diaphragm stacking direction of the membrane assembly 21; along the diaphragm stacking direction of the membrane assembly 21, the extrusion piece 22 is located on the side of the main body 231 away from the connecting rod 232; when at least part of the extrusion piece 22 is squeezed and deformed, part of the extrusion piece 22 contacts the rear end diaphragm through the through hole 2311 to generate a force on the membrane assembly 21.

[0095] Specifically, the extrusion piece 22 is in close contact with a side of the main body 231 that is away from the connecting rod 232 .

[0096] It should be noted that, since the diaphragm of the membrane assembly 21 is made of soft material, the support 23 can support the diaphragm of the membrane assembly 21 .

[0097] Specifically, each membrane of the membrane assembly 21 is provided with a hole body, and the hole bodies of a stack of membranes are connected and connected in sequence to form a connecting hole 211 .

[0098] It should be noted that as the diaphragms of the membrane assembly 21 gradually decrease, under the pressure of the internal cavity 101, each front end diaphragm of the membrane assembly 21 can be in contact with the inner wall surface of the first end 114, and the support 23 will also gradually move along the direction from the rear end diaphragm to the front end diaphragm; during the movement of the support 23, due to the cooperation between the connecting rod 232 and the connecting hole 211 and the guide hole 112, the movement of the support 23 can be guided.

[0099] Optionally, the support 23 includes a plurality of connecting rods 232, the membrane assembly 21 has a plurality of connecting holes 211, and a plurality of guide holes 112 are opened on the first end 114; the plurality of connecting rods 232 are arranged one-to-one correspondingly to the plurality of connecting holes 211, and the plurality of connecting rods 232 are arranged one-to-one correspondingly to the plurality of guide holes 112; each connecting rod 232 is passed through the corresponding connecting hole 211 and the corresponding guide hole 112, and passes through the corresponding guide hole 112.

[0100] Optionally, the axes of the plurality of connecting rods 232 are all parallel.

[0101] Optionally, a plurality of connecting rods 232 are arranged around a preset axis, and the direction of the preset axis is parallel to or the same as the stacking direction of the membrane sheets of the membrane assembly 21 .

[0102] Optionally, when the membrane assembly 21 has a plurality of connection holes 211 , each membrane sheet is provided with a plurality of holes for forming the plurality of connection holes 211 .

[0103] In the present application, the extrusion member 22 is a columnar structure, and the axial direction of the extrusion member 22 is parallel to or the same as the stacking direction of the membrane sheets of the membrane assembly 21 .

[0104] Optionally, when the pressure in the second cavity 1012 increases, the middle portion of the extrusion piece 22 bulges toward the membrane assembly 21 to contact the rear membrane through the through hole 2311 , thereby generating a force on the membrane assembly 21 .

[0105] In the present application, a first positioning portion 113 is disposed on the cavity wall of the internal cavity 101 , a second positioning portion 2312 is disposed on the main body 231 , and a third positioning portion 221 is disposed on the extrusion piece 22 .

[0106] Optionally, the first positioning portion 113 is a strip-shaped positioning protrusion, and the extending direction of the positioning protrusion is parallel to the diaphragm stacking direction of the membrane assembly 21; the second positioning portion 2312 and the third positioning portion 221 are both positioning grooves, and the positioning groove of the second positioning portion 2312 passes through the main body 231 in a direction parallel to the extending direction of the positioning protrusion, and the positioning groove of the third positioning portion 221 passes through the extrusion member 22 in a direction parallel to the extending direction of the positioning protrusion. Alternatively, the first positioning portion 113 is a strip-shaped positioning groove, and the extending direction of the positioning groove is parallel to the diaphragm stacking direction of the membrane assembly 21; the second positioning portion 2312 and the third positioning portion 221 are both positioning protrusions.

[0107] The positioning protrusion is arranged in the positioning groove; and the positioning protrusion is movably arranged in the positioning groove along the diaphragm stacking direction of the membrane assembly 21.

[0108] Optionally, the positioning protrusion is engaged with the positioning groove.

[0109] Specifically, when the support 23 and the extrusion member 22 are installed into the internal cavity 101, the positioning protrusion moves in the positioning groove along the diaphragm stacking direction of the membrane assembly 21. When the support 23 is installed into the internal cavity 101, the first positioning portion 113 and the second positioning portion 2312 cooperate to install and position the support 23 in the circumferential direction around the preset axis, thereby facilitating the connection rod 232 to penetrate into the guide hole 112.

[0110] Optionally, there are multiple first positioning portions 113, and the multiple first positioning portions 113 are arranged around a preset axis; multiple second positioning portions 2312 are arranged on the main body 231, and the multiple first positioning portions 113 are arranged one-to-one with the multiple second positioning portions 2312; multiple third positioning portions 221 are arranged on the extrusion member 22, and the multiple first positioning portions 113 are arranged one-to-one with the multiple third positioning portions 221; each positioning protrusion is arranged in a corresponding positioning groove.

[0111] It should be noted that, since the membrane of the membrane assembly 21 is made of soft material, the positioning protrusions on the cavity wall of the internal cavity 101 will not interfere with the membrane.

[0112] In the present application, the internal cavity 101 includes a first cavity portion 1011 and an empty second cavity portion 1012; the distribution direction of the first cavity portion 1011 and the second cavity portion 1012 is parallel to or the same as the stacking direction of the diaphragms of the membrane assembly 21; the first cavity portion 1011 is used to accommodate the membrane assembly 21, the support 23 and the extrusion member 22; by changing the pressure of the second cavity portion 1012, a force is generated on the extrusion member 22, thereby causing at least a portion of the extrusion member 22 to deform.

[0113] By increasing the pressure in the second cavity 1012 to generate an extrusion force on the extrusion member 22, at least a portion of the extrusion member 22 is deformed due to the extrusion; when at least a portion of the extrusion member 22 is deformed due to the extrusion, the extrusion member 22 contacts the rear end diaphragm, so that the extrusion member 22 applies a force to the membrane assembly 21 from the rear end diaphragm side, thereby popping the front end diaphragm out of the preset opening 111.

[0114] After the front end diaphragm is ejected together with the piece to be installed to the installation position on the installation base, the pressure in the second cavity 1012 is reduced so that the extrusion force acting on the extrusion member 22 disappears, and a suction force is generated on the extrusion member 22, thereby causing at least a portion of the extrusion member 22 to deform, thereby restoring the extrusion member 22 to its original state.

[0115] Specifically, the pressure of the second cavity 1012 is changed by inflating or exhausting air into the second cavity 1012. When inflating the second cavity 1012, the pressure in the second cavity 1012 increases; when exhausting air from the second cavity 1012, the pressure in the second cavity 1012 decreases.

[0116] Optionally, the second cavity portion 1012 is a compression cavity.

[0117] In the present application, the shell assembly 10 includes a first shell 11 and a second shell 12, the first shell 11 has a first end and a second end arranged opposite to each other, and the second shell 12 has a first end and a second end arranged opposite to each other; the first end of the first shell 11 is provided with an end portion, and the first end of the first shell 11 is the first end 114 of the shell assembly 10; the second end of the first shell 11 is open; the second end of the second shell 12 is provided with an end portion, and the first end of the second shell 12 is open; the second end of the first shell 11 is detachably connected to the first end of the second shell 12, so that the first shell 11 and the second shell 12 together form an internal cavity 101.

[0118] Optionally, the first shell 11 is a cylindrical structure, and the first shell 11 has a first end and a second end along its axial direction; the second shell 12 is a cylindrical structure, and the second shell 12 has a first end and a second end along its axial direction. When the first shell 11 and the second shell 12 are in a connected state, the axial direction of the first shell 11 and the axial direction of the second shell 12 are parallel to or the same as the diaphragm stacking direction of the membrane assembly 21.

[0119] Optionally, the first housing 11 is a bushing.

[0120] Optionally, the outer circumferential wall of the second end of the first shell 11 is provided with an external thread, and the inner circumferential wall of the first end of the second shell 12 is provided with an internal thread, and the second end of the first shell 11 is inserted into the first end of the second shell 12 so that the second end of the first shell 11 is threadedly connected with the first end of the second shell 12. Fig.11 The first external thread 115 is an external thread of the second end of the first shell 11 . Fig.18 The internal thread 122 is the internal thread of the first end of the second shell 12.

[0121] Figure 3 and Figure 4 The first housing 11 is not screwed into the second housing 12.

[0122] Optionally, a sealing gasket 13 is provided at the connection between the second end of the first shell 11 and the first end of the second shell 12 to ensure the sealing of the connection between the second end of the first shell 11 and the first end of the second shell 12 to prevent air leakage when pressurizing the second cavity 1012. Further, the sealing gasket 13 is provided between the external thread of the first shell 11 and the internal thread of the second shell 12.

[0123] Optionally, the sealing gasket 13 is a sealing gasket.

[0124] Specifically, the first housing 11 is used to accommodate the membrane assembly 21, the support 23 and the extrusion member 22. That is, along the membrane stacking direction of the membrane assembly 21, starting from the first end of the first housing 11, at least part of the inner cavity of the first housing 11 forms a first cavity 1011; along the membrane stacking direction of the membrane assembly 21, starting from the second end of the second housing 12, at least part of the inner cavity of the second housing 12 forms a second cavity 1012.

[0125] During the specific implementation process, the connecting rod 232 is first inserted into the connecting hole 211 to assemble the membrane assembly 21 and the support 23; the assembled membrane assembly 21 and the support 23 are then installed or embedded into the first shell 11; the extrusion member 22 is then installed into the first shell 11; and the first shell 11 and the second shell 12 are connected so that the membrane assembly 21 is squeezed into the first cavity 1011.

[0126] Specifically, the first positioning portion 113 is disposed on the inner wall of the first shell 11 ; a plurality of first positioning portions 113 are distributed along the circumference of the first shell 11 .

[0127] In the present application, the auxiliary device further includes a pressure regulating component 40 , and a vent of the pressure regulating component 40 is connected to the second cavity 1012 , so that the pressure regulating component 40 can inflate air into the second cavity 1012 or extract air from the second cavity 1012 .

[0128] Specifically, the pressure regulating component 40 includes a cylinder or an air bag. For example, the cylinder is a small cylinder. Among them, the cylinder is a pressure-adjustable cylinder, and the gas pressure during inflating can be adjusted by a tail knob. If the gas pressure reaches the target value, the cylinder will no longer inflate and maintain the pressure.

[0129] Specifically, a communication opening 121 is provided on the cavity wall of the second cavity portion 1012 , and the vent of the pressure regulating component 40 is in communication with the communication opening 121 .

[0130] Optionally, the communication opening 121 is disposed on the cavity wall of the second cavity 1012 opposite to the first end 114 , that is, the communication opening 121 is disposed on the second end of the second shell 12 , and the communication opening 121 passes through the inner and outer walls of the second end of the second shell 12 .

[0131] Specifically, the second end of the second housing 12 is connected to the pressure regulating component 40 so that the communication opening 121 is in communication with the vent of the pressure regulating component 40 .

[0132] Optionally, the second end of the second shell 12 is inserted into the pressure regulating component 40 so that the communication opening 121 is communicated with the vent of the pressure regulating component 40 .

[0133] In the present application, the shell assembly 10 has a second end portion disposed opposite to the first end portion 114 , and the second end portion of the shell assembly 10 is used to enclose an internal cavity 101 ; the second end portion of the second shell 12 is the second end portion of the shell assembly 10 .

[0134] The auxiliary device also includes a length adjustment component 50 with a cylindrical structure, and the length adjustment component 50 has a first end and a second end arranged opposite to each other; the first end of the length adjustment component 50 is connected to the second end of the shell assembly 10, so that the second cavity 1012 is connected to the cylindrical cavity of the length adjustment component 50; the second end of the length adjustment component 50 is connected to the pressure adjustment component 40, so that the vent of the pressure adjustment component 40 is connected to the cylindrical cavity of the length adjustment component 50; thereby, the vent of the pressure adjustment component 40 is connected to the second cavity 1012 through the cylindrical cavity of the length adjustment component 50.

[0135] Specifically, the first end of the length adjustment component 50 is connected to the second end of the second housing 12 so that the communication opening 121 is in communication with the cylindrical cavity of the length adjustment component 50 .

[0136] Optionally, the second end of the second housing 12 is inserted into the first end of the length adjustment component 50 so that the communication opening 121 is in communication with the cylindrical cavity of the length adjustment component 50 .

[0137] Optionally, the second end of the length adjusting component 50 is inserted into the pressure adjusting component 40 so that the vent of the pressure adjusting component 40 is in communication with the barrel cavity of the length adjusting component 50 .

[0138] Specifically, the second end of the length adjusting component 50 is connected to the pressure adjusting component 40 so that the vent of the pressure adjusting component 40 is in communication with the barrel cavity of the length adjusting component 50 .

[0139] In the specific implementation process, whether to use the length adjustment component 50 is selected according to actual needs; that is, if there is a need for extension, the length adjustment component 50 can be used; if there is no need for extension, the length adjustment component 50 can be omitted. The axial length of the length adjustment component 50 can also be set according to actual needs.

[0140] Optionally, the second end of the second housing 12 is provided with an external thread to be threadedly connected to the first end of the length adjustment component 50 or the pressure adjustment component 40 . Fig.18 The second external thread 123 is an external thread provided at the second end of the second shell 12 .

[0141] Optionally, the second end of the length adjusting component 50 is threadedly connected to the pressure adjusting component 40 .

[0142] Optionally, the axial direction of the length adjustment component 50 is parallel to the stacking direction of the membrane sheets of the membrane assembly 21. Alternatively, the length adjustment component 50 may be bent.

[0143] Optionally, the pressure regulating component 40 has an air pipe, and one port of the air pipe is a vent of the pressure regulating component 40 .

[0144] In the present application, when the mounting base is a preset tube, the outer side wall of the first end 114 is recessed toward the inner cavity 101 so that the outer side wall of the first end 114 is adapted to the shape of the outer peripheral wall of the preset tube.

[0145] Optionally, the outer side wall of the first end portion 114 is an arc-shaped surface.

[0146] Optionally, the first end portion 114 is recessed toward the internal cavity 101 , so that an outer sidewall of the first end portion 114 is recessed toward the internal cavity 101 .

[0147] Optionally, the mounting base is a pipe body of an air conditioning pipeline.

[0148] Optionally, the outer wall surface of the first end portion 114 is used to fit in contact with the surface where the installation position is located, so that the front diaphragm with the sheet to be installed is tightly fitted with the installation base with a constant and uniform pressure. After the front diaphragm with the sheet to be installed is ejected onto the installation base, the outer wall surface of the first end portion 114 is kept in contact with the surface where the installation position is located for a certain period of time, and then the auxiliary device is moved away from the installation base; in this way, it is used to ensure that the sheet to be installed is tightly fitted with the installation base. Further, after the front diaphragm with the sheet to be installed is ejected onto the installation base, the pressure of the second cavity 1012 is maintained, and the outer wall surface of the first end portion 114 is kept in contact with the surface where the installation position is located for a certain period of time, and then the auxiliary device is moved away from the installation base, and the pressure of the second cavity 1012 is reduced.

[0149] During the specific implementation process, first place the sheet to be installed at the preset opening 111, fix the wire part of the sheet to be installed in the receiving groove 1141 through the buckle 1142, and apply glue to the side of the sheet to be installed away from the front diaphragm; open the positioning member 31, and according to the installation position located by the positioning member 31, fit the outer wall surface of the first end 114 and the surface where the installation position is located according to the positioning point (it can be tightly fitted). Then adjust the pressure range of the pressure regulating component 40 to the target range (for example, 0.3MPa to 0.5Mpa, which can be appropriately increased considering the pressure attenuation), turn on the switch of the pressure regulating component 40, and the pressure in the second cavity 1012 instantly reaches the target value and remains stable. Under the action of the pressure in the second cavity 1012, the extrusion member 22 is deformed, and part of the extrusion member 22 contacts the rear end diaphragm through the through hole 2311, generating a force on the membrane assembly 21, and the membrane assembly 21 bulges in the direction from the rear end diaphragm to the front end diaphragm, and in the first Under the action of a shell 11, the front end diaphragm protrudes to the outside of the preset opening 111 and is ejected together with the piece to be installed. The front end diaphragm and the piece to be installed are tightly fitted to the installation base with a constant and uniform pressure; after waiting for a preset time, for example 1min to 2min, the pressure regulating component 40 is closed, the pressure in the second cavity 1012 disappears (decreases), and the auxiliary device is retracted. When retracting, the buckle 1142 is pulled from the inside of the receiving groove 1141 to the outside, and the wire in the receiving groove 1141 slides out, and the piece to be installed is pasted.

[0150] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0151] In the auxiliary device provided by the present invention, the auxiliary device includes a shell assembly 10 and a membrane assembly 21; the shell assembly 10 includes an internal cavity 101 and a first end 114, and the first end 114 is used to enclose the internal cavity 101; a preset opening 111 connected to the internal cavity 101 is provided on the first end 114; the membrane assembly 21 is arranged in the internal cavity 101, and the membrane assembly 21 includes a stack of diaphragms; along the diaphragm distribution direction of the membrane assembly 21, the two end diaphragms of the membrane assembly 21 are respectively a front end diaphragm and a rear end diaphragm; the front end diaphragm is in close contact with the inner wall surface of the first end 114, that is, the front end diaphragm is arranged against the inner wall surface of the first end 114.

[0152] The preset opening 111 is used to place the sheet to be installed; by changing the pressure of the internal cavity 101, a force is applied to the membrane assembly 21 from the rear membrane side to eject the front membrane from the preset opening 111, and in the process of the front membrane ejecting from the preset opening 111, the front membrane will eject the sheet to be installed to the installation position on the installation base together with the sheet to be installed. That is, the auxiliary device of the present application is an auxiliary device for installing the sheet to be installed.

[0153] The auxiliary device of the present application: 1. It has a better pasting effect. During pasting, the installed piece is subjected to more uniform force, the pressure control is more precise, the pasting quality consistency is better, and the test result is more accurate; 2. It is suitable for various complex installation environments, and even in a small space, it can still achieve accurate pasting on various installation surfaces such as cylindrical surfaces and curved surfaces; 3. It has good positioning accuracy, and can accurately paste at designated positions to improve the reproducibility of test results; 4. It can improve work efficiency, reduce the influence of human factors, and realize standardized and quick piece layout; 5. It is not only suitable for the air-conditioning industry, but can also be widely used in other fields that require high-precision strain testing.

[0154] In order to improve the accuracy and efficiency of strain gauge pasting, the present application provides a strain gauge pasting auxiliary device that can be used in a small space; the device achieves precise pasting of strain gauges in a small space through technical means such as a high-precision positioning system, an automated pasting device, and a flexible length adjustment mechanism, thereby greatly improving the reliability and efficiency of the testing work.

[0155] The present application provides a novel strain gauge auxiliary installation device, which has an adjustable connecting rod component and infrared visual positioning, can freely perform strain gauge installation operations in a small space, has a simple structure, is easy to use and has precise point distribution; the device adopts a cylinder or air bag pressurization method, which can achieve uniform force, controllable pressure level, good repeatability, high consistency, and can be applied to various adhesive surfaces.

[0156] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0157] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0158] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary device, characterized in that: include: A housing assembly (10) comprises an internal cavity (101) and a first end (114), wherein the first end (114) is used to enclose the internal cavity (101); a preset opening (111) communicating with the internal cavity (101) is provided on the first end (114); A membrane assembly (21) is arranged in the internal cavity (101) and comprises a stack of membrane sheets; along the membrane sheet distribution direction of the membrane assembly (21), the two end membrane sheets of the membrane assembly (21) are respectively a front end membrane sheet and a rear end membrane sheet; the front end membrane sheet is in contact with the inner wall surface of the first end portion (114); The preset opening (111) is used to place the piece to be installed; by changing the pressure of the internal cavity (101), a force is applied to the membrane assembly (21) from the rear end membrane side, so that the front end membrane passes through the preset opening (111) and is ejected with the piece to be installed to the installation position on the installation base.

2. The auxiliary device according to claim 1, characterized in that A positioning assembly (30) is provided on the outer wall surface of the first end portion (114), and the positioning assembly (30) is used to locate the position to be installed on the installation base.

3. The auxiliary device according to claim 2, characterized in that The positioning component (30) is used to send a light signal to the installation base component to project a light projection on the installation base component, so as to locate the position to be installed through the light projection.

4. The auxiliary device according to claim 3, characterized in that The positioning assembly (30) comprises a plurality of positioning members (31), each of the positioning members (31) being used to emit a light signal to the installation base member so as to project a light projection onto the installation base member; the light projections of the plurality of positioning members (31) on the installation base member are distributed along the circumference of the position to be installed.

5. The auxiliary device according to claim 1, characterized in that An outer wall surface of the first end portion (114) is provided with a receiving groove (1141) and a buckle (1142), wherein the receiving groove (1141) is used to receive the wire connected to the sheet to be installed; The buckle (1142) has a connecting end and a free end that are arranged opposite to each other; the connecting end of the buckle (1142) is connected and fixed to the outer wall surface of the first end portion (114) and is located on one side of the receiving groove (1141), so that the free end of the buckle (1142) can be movably arranged, so that the buckle (1142) has a blocking state and a yielding state; when the buckle (1142) is in the blocking state, part of the buckle (1142) is located outside the receiving groove (1141) to stop the wire in the receiving groove (1141); when the buckle (1142) is in the yielding state, the buckle (1142) is away from the receiving groove (1141).

6. The auxiliary device according to claim 1, characterized in that The auxiliary device further comprises an extrusion piece (22), at least a portion of which is made of a flexible material, so that at least a portion of the extrusion piece (22) can be deformed; The extrusion member (22) is located on a side of the membrane assembly (21) away from the first end portion (114) so ​​as to generate a force on the extrusion member (22) by changing the pressure of the internal cavity (101), thereby causing at least a portion of the extrusion member (22) to deform; when at least a portion of the extrusion member (22) is squeezed and deformed, the extrusion member (22) contacts the rear end diaphragm so as to apply a force to the membrane assembly (21) from the rear end diaphragm side.

7. The auxiliary device according to claim 6, characterized in that The auxiliary device further comprises a support (23), wherein the support (23) comprises a main body (231) and a connecting rod (232), and one end of the connecting rod (232) is fixedly connected to the main body (231); The membrane assembly (21) has a through connection hole (211) along the stacking direction of the membrane sheets; a guide hole (112) is provided on the first end (114); the connection rod (232) is inserted into the connection hole (211) and the guide hole (112), and passes out from the guide hole (112); The main body (231) has a through hole (2311), and the through hole (2311) passes through the main body (231) along the diaphragm stacking direction of the membrane assembly (21); the extrusion member (22) is located on the side of the main body (231) away from the connecting rod (232); when at least a part of the extrusion member (22) is squeezed and deformed, part of the extrusion member (22) contacts the rear end diaphragm through the through hole (2311) to generate a force on the membrane assembly (21).

8. The auxiliary device according to claim 6, characterized in that The extrusion piece (22) is a columnar structure, and the axial direction of the extrusion piece (22) is parallel to or the same as the stacking direction of the membrane sheets of the membrane assembly (21).

9. The auxiliary device according to claim 7, characterized in that A first positioning portion (113) is provided on the cavity wall of the internal cavity (101), a second positioning portion (2312) is provided on the main body (231), and a third positioning portion (221) is provided on the extrusion piece (22); The first positioning portion (113) is a strip-shaped positioning protrusion, and the extending direction of the positioning protrusion is parallel to the stacking direction of the membrane sheets of the membrane assembly (21); the second positioning portion (2312) and the third positioning portion (221) are both positioning grooves; or, the first positioning portion (113) is a strip-shaped positioning groove, and the extending direction of the positioning groove is parallel to the stacking direction of the membrane sheets of the membrane assembly (21); the second positioning portion (2312) and the third positioning portion (221) are both positioning protrusions; The positioning protrusion is movably arranged in the positioning groove along the diaphragm stacking direction of the diaphragm assembly (21).

10. The auxiliary device according to claim 7, characterized in that The internal cavity (101) comprises a first cavity portion (1011) and an empty second cavity portion (1012); the distribution direction of the first cavity portion (1011) and the second cavity portion (1012) is parallel to or the same as the stacking direction of the membrane sheets of the membrane assembly (21); the first cavity portion (1011) is used to accommodate the membrane assembly (21), the support (23) and the extrusion member (22); and a force is generated on the extrusion member (22) by changing the pressure of the second cavity portion (1012).

11. The auxiliary device according to claim 10, characterized in that The pressure of the second chamber (1012) is changed by inflating air into the second chamber (1012) or exhausting air from the second chamber (1012).

12. The auxiliary device according to claim 11, characterized in that The housing assembly (10) comprises a first housing (11) and a second housing (12), wherein the first housing (11) has a first end and a second end that are arranged opposite to each other, and the second housing (12) has a first end and a second end that are arranged opposite to each other; The first end of the first shell (11) is the first end (114) of the shell assembly (10), and the second end of the first shell (11) is detachably connected to the first end of the second shell (12), so that the first shell (11) and the second shell (12) together enclose the internal cavity (101); The first shell (11) is used to accommodate the membrane assembly (21), the support (23) and the extrusion piece (22).

13. The auxiliary device according to claim 11, characterized in that The auxiliary device further comprises a pressure regulating component (40), wherein the vent of the pressure regulating component (40) is in communication with the second cavity (1012) so as to inflate air into the second cavity (1012) or to extract air from the second cavity (1012).

14. The auxiliary device according to claim 13, characterized in that The shell assembly (10) has a second end portion arranged opposite to the first end portion (114); the auxiliary device also includes a length adjustment component (50) having a cylindrical structure, the first end of the length adjustment component (50) being connected to the second end of the shell assembly (10), and the second end of the length adjustment component (50) being connected to the pressure adjustment component (40), so that the vent of the pressure adjustment component (40) is connected to the second cavity portion (1012) through the cylindrical cavity of the length adjustment component (50).

15. The auxiliary device according to claim 1, characterized in that The mounting base is a preset tube, and the outer wall of the first end (114) is recessed toward the internal cavity (101), so that the outer wall of the first end (114) is adapted to the outer peripheral wall of the preset tube; and / or The sheet to be installed is a strain gauge.

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