Oil viscosity head structure

Abstract

The utility model provides a kind of oil viscosity head structure, comprising: pipe body, its inside hollow, be located on the shell of compressor;The pipe body includes first hole section and second hole section, the diameter of the first hole section is greater than the diameter of the second hole section, part inner wall of the first hole section is equipped with thread, for cooperation with fixed part;Filter screen structure, be located in the first hole section and / or the second hole section.The oil viscosity head structure of the utility model by setting filter screen structure in pipe body, when avoiding other foreign matter to enter the inside of compressor when dismounting or installing fixed part, filter screen structure is used to isolate the foreign matter generated when dismounting or installing fixed part, avoid to contaminate the oil pool of compressor, improve the reliability of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and specifically to an oil viscosity head structure. Background Technology

[0002] The oil viscosity head structure provides an interface for customers to test changes in oil viscosity. Currently, the oil viscosity head structure is a standard internally threaded tube, installed with an external hexagonal nut. When installing the oil viscosity head on a sight glass machine, the machining center needs to use waterproof Teflon tape to tighten the external hexagonal nut before transferring the compressor to the customer. After receiving the compressor, the customer needs to remove the external hexagonal nut and then replace it with the required test head. During the removal and installation of the nut and test head, there is a risk that waterproof Teflon tape or other foreign objects may enter the machine. Utility Model Content

[0003] To address the problems in the existing technology, the purpose of this utility model is to provide an oil viscosity head structure to prevent foreign objects from entering the compressor when disassembling or installing nuts and testing the installation head.

[0004] This utility model embodiment provides an oil viscosity head structure, including:

[0005] The tube body is hollow inside and is installed on the housing of the compressor; the tube body includes a first hole section and a second hole section, the diameter of the first hole section is larger than the diameter of the second hole section, and a portion of the inner wall of the first hole section is threaded for mating with a fastener.

[0006] A filter structure is disposed in the first pore section and / or the second pore section.

[0007] In some embodiments, the filter structure includes a mounting portion and a filtering portion arranged coaxially, and the filtering portion is provided with a plurality of mesh holes.

[0008] In some embodiments, the mounting portion is an annular structure, and the outer wall of the mounting portion abuts against the inner wall of the first hole segment or the inner wall of the second hole segment.

[0009] In some embodiments, a stepped surface is formed between the first hole segment and the second hole segment, and the end face of the mounting portion facing the filter portion abuts against the stepped surface.

[0010] In some embodiments, the outer wall of the mounting portion is provided with a first limiting portion in the circumferential direction, and the inner wall of the first hole segment is provided with a second limiting portion. The first limiting portion and the second limiting portion cooperate to fix the filter structure in the first hole segment.

[0011] In some embodiments, one of the first limiting portion and the second limiting portion is a protruding structure, and the other of the first limiting portion and the second limiting portion is a recessed structure.

[0012] In some embodiments, the filter section is a tubular structure, and the end of the tubular structure opposite to the mounting section is a closed structure.

[0013] In some embodiments, the diameter of the tubular structure is D1, and the diameter of the second hole segment is D, satisfying: D1≤D.

[0014] In some embodiments, the axial length of the tubular structure is L1, and the axial length of the second hole segment is L, satisfying: L1≤L.

[0015] In some embodiments, the width of the mounting portion is T1, and the width of the step surface is T, satisfying: 0 < T1 ≤ T.

[0016] The oil viscosity head structure provided by this utility model has the following advantages:

[0017] The oil viscosity head structure provided by this utility model includes: a hollow tube body disposed on the compressor housing; the tube body includes a first bore section and a second bore section, the diameter of the first bore section being larger than the diameter of the second bore section, and a portion of the inner wall of the first bore section having threads for engaging with a fixing component; and a filter screen structure disposed in the first bore section and / or the second bore section. This utility model's oil viscosity head structure, by incorporating a filter screen structure within the tube body, isolates foreign objects generated during the disassembly or installation of the fixing component, thereby preventing other foreign objects from entering the compressor's interior during disassembly or installation, avoiding contamination of the compressor's oil sump, and improving the compressor's reliability. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 This is a cross-sectional view of the oil viscosity head structure in the prior art;

[0020] Figure 2 This is a top view of the oil viscosity head structure in the prior art;

[0021] Figure 3 It is installed in Figure 1 A schematic diagram of the nut with an oil viscosity head structure;

[0022] Figure 4 This is a cross-sectional view of the oil viscosity head structure provided in an embodiment of the present invention;

[0023] Figure 5 This is a top view of the oil viscosity head structure provided in an embodiment of the present invention;

[0024] Figure 6 yes Figure 4 A top view of the filter screen of the oil viscosity structure head;

[0025] Figure 7 yes Figure 4 A cross-sectional view of the filter screen of the oil viscosity structure head;

[0026] Figure 8 It is installed in Figure 6 A schematic diagram of the nut with an oil viscosity head structure;

[0027] Figure 9 This is a cross-sectional view of the oil viscosity head structure provided in another embodiment of the present invention;

[0028] Figure 10 This is a top view of the oil viscosity head structure provided in another embodiment of the present invention;

[0029] Figure 11 This is a top view of a filter screen with an oil viscosity head structure provided in another embodiment of this utility model.

[0030] Figure label:

[0031] 11' Pipe body 111 thread

[0032] 111' Thread 112 Second limiting part

[0033] 20' Nut 12 Filter Structure

[0034] 11 Pipe body 121 Installation section

[0035] 11a First hole section 1211 First limiting part

[0036] 11b Second orifice section 122 Filter section

[0037] 11c Stepped surface 20 Nut Detailed Implementation

[0038] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0039] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0040] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0041] It should be further understood that the terms "comprising" or "including" indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" as used herein are interpreted as inclusive, or mean any one or any combination thereof. Therefore, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only arise when a combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0042] Figure 1 A cross-sectional view of an oil viscosity head structure in the prior art is shown; Figure 2 A top view of an oil viscosity head structure in the prior art is shown; Figure 3 It is installed in Figure 1 A schematic diagram of the nut with an oil viscosity head structure. (See diagram below.) Figure 1 and Figure 2 As shown, the existing oil viscosity head structure includes a tube 11', the interior of which is hollow, and a portion of the inner wall of the tube 11' is threaded 111' for mating with a fixing component; for example, when the compressor leaves the factory, the oil viscosity head structure is... Figure 3The nut 20' in the middle is engaged; when the compressor is delivered to the customer, the oil viscosity head structure is used to engage with the test mounting head. However, when the fastener is disassembled or installed, foreign objects (such as waterproof Teflon tape installed between the thread 111' and the nut 20') can easily enter the compressor's internal oil sump through the pipe 11', which can lead to oil circuit blockage or lubrication failure, causing abnormal compressor operation.

[0043] To solve the above-mentioned technical problems, this utility model provides an oil viscosity head structure, including: a tube body, which is hollow inside and disposed on the housing of a compressor; the tube body includes a first hole section and a second hole section, the diameter of the first hole section is larger than the diameter of the second hole section, and a portion of the inner wall of the first hole section is threaded for cooperating with a fixing component; and a filter screen structure disposed in the first hole section and / or the second hole section.

[0044] In this technical solution, a filter screen structure is set inside the pipe body. The filter screen structure is used to isolate foreign objects generated during the disassembly or installation of fasteners, thereby preventing other foreign objects from entering the compressor's interior during the disassembly or installation of fasteners, avoiding contamination of the compressor's oil sump, and improving the compressor's reliability.

[0045] The oil viscosity head structure provided by this utility model will be explained in detail below with reference to specific embodiments.

[0046] Figure 4 A cross-sectional view of an oil viscosity head structure provided in an embodiment of the present invention is shown; Figure 5 A top view of an oil viscosity head structure provided in an embodiment of the present invention is shown; Figure 6 yes Figure 4 A top view of the filter screen of the oil viscosity structure head; Figure 7 yes Figure 4 A cross-sectional view of the filter screen of the oil viscosity structure head. (See diagram below.) Figures 4 to 7 As shown, the oil viscosity head structure includes a tube body 11 and a filter structure 12. The tube body 11 is hollow inside and includes a first section 11a and a second section 11b. The diameter of the first section 11a is larger than the diameter of the second section 11b. A portion of the inner wall of the first section 11a is provided with threads 111 for mating with a fastener. The filter structure 12 is disposed in the first section 11a and the second section 11b. The filter structure 12 is used to isolate foreign objects. When the fastener is disassembled or installed, the foreign objects generated will be blocked by the filter structure 12 and cannot enter the compressor, thereby preventing the oil sump inside the compressor from being contaminated and improving the reliability of the compressor operation. It should be noted that in some other embodiments, the filter structure 12 may be disposed only in the first section 11a or the second section 11b.

[0047] It should be noted that the fixing parts are as follows when the compressor leaves the factory: Figure 8The nut 20 in the middle is engaged with the pipe body 11 by the thread 111; when the compressor is delivered to the customer, the fixing part is a test mounting head, which is engaged with the pipe body 11 by the thread 111.

[0048] Furthermore, such as Figure 6 and Figure 7 As shown, the filter structure 12 includes a mounting portion 121 and a filtering portion 122 arranged coaxially, and the filtering portion 122 is provided with a plurality of mesh holes (not shown in the figure). For example, the mesh diameter is 5 to 50 μm.

[0049] Furthermore, such as Figure 6 As shown, the mounting part 121 has a ring-shaped structure, and the outer wall of the mounting part 121 can abut against the inner wall of the first hole section 11a. In some other embodiments, the outer wall of the mounting part 121 can also be configured to abut against the inner wall of the second hole section 11b. The specific configuration can be determined according to actual needs, and no specific limitation is made here.

[0050] Furthermore, such as Figure 4 and Figure 5 As shown, a stepped surface 11c is formed between the first hole segment 11a and the second hole segment 11b, and the end face of the mounting part 121 facing the filter part 122 abuts against the stepped surface 11c. The stepped surface 11c is used to provide stable support for the mounting part 121.

[0051] Furthermore, Figure 9 A cross-sectional view of an oil viscosity head structure according to another embodiment of the present invention is shown; Figure 10 This is a top view of the oil viscosity head structure provided in another embodiment of the present invention; Figure 11 This is a top view of a filter screen with an oil viscosity head structure provided in another embodiment of this utility model. (See attached image.) Figures 9 to 11 As shown, the outer wall of the mounting part 121 is provided with a first limiting part 1211 circumferentially, and the inner wall of the first hole segment 11a is provided with a second limiting part 112. The first limiting part 1211 and the second limiting part 112 cooperate to fix the mounting part 121 in the first hole segment 11a. In this embodiment, the first limiting part 1211 is a recessed structure, and the second limiting part 112 is a protruding structure. The recessed structure and the protruding structure cooperate to prevent the filter structure 12 from loosening during use and causing failure. In other embodiments, the first limiting part 1211 can also be set as a protruding structure, and the second limiting part 112 can be set as a recessed structure, which can also achieve the effect of preventing the filter structure 12 from loosening during use. The specific structure of the first limiting part 1211 and the second limiting part 112 can be set according to actual needs, and is not specifically limited here.

[0052] Furthermore, such as Figure 7As shown, the filter section 122 has a tubular structure, and the end of the tubular structure opposite to the mounting section 121 is closed. The tubular structure of the filter section 122 increases the efficiency of filtering foreign objects and the amount of foreign objects filtered. In other embodiments, the filter section 122 can also be a circular structure, which reduces the volume of the filter screen structure 12. In this embodiment, the tubular filter section 122 is disposed in the second hole section 11b.

[0053] Furthermore, such as Figure 4 and 7 As shown, the diameter of the tubular structure is D1, and the diameter of the second hole segment 11b is D, satisfying: D1≤D; the axial length of the tubular structure is L1, and the axial length of the second hole segment 11b is L, satisfying: L1≤L. This dimensional relationship between the tubular structure and the second hole segment 11b is configured such that at least a portion of the tubular structure can extend into the second hole segment 11b.

[0054] Furthermore, such as Figure 4 and Figure 7 As shown, the width of the mounting part 121 is T1, and the width of the step surface 11c is T, satisfying: 0 < T1 ≤ T. This dimensional relationship between the mounting part 121 and the step surface 11c is set in this way to increase the contact area between the mounting part 121 and the step surface 11c, providing more stable support for the mounting part 121.

[0055] In summary, the oil viscosity head structure provided by this utility model has the following advantages:

[0056] By installing a filter screen structure inside the pipe body, the filter screen structure is used to isolate foreign objects generated during the disassembly or installation of fasteners, thereby preventing other foreign objects from entering the compressor's interior during the disassembly or installation of fasteners, avoiding contamination of the compressor's oil sump, and improving the compressor's reliability.

[0057] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An oil viscosity head structure, characterized in that, include: The tube body is hollow inside and is installed on the housing of the compressor; the tube body includes a first hole section and a second hole section, the diameter of the first hole section is larger than the diameter of the second hole section, and a portion of the inner wall of the first hole section is threaded for mating with a fastener. A filter structure is disposed in the first pore section and / or the second pore section.

2. The oil viscosity head structure according to claim 1, characterized in that, The filter structure includes a mounting part and a filtering part arranged coaxially, and the filtering part is provided with multiple mesh holes.

3. The oil viscosity head structure according to claim 2, characterized in that, The mounting part has a ring structure, and the outer wall of the mounting part abuts against the inner wall of the first hole section or the inner wall of the second hole section.

4. The oil viscosity head structure according to claim 2, characterized in that, A stepped surface is formed between the first hole segment and the second hole segment, and the end face of the mounting part facing the filter part abuts against the stepped surface.

5. The oil viscosity head structure according to claim 2, characterized in that, The outer wall of the mounting part is provided with a first limiting part, and the inner wall of the first hole section is provided with a second limiting part. The first limiting part and the second limiting part cooperate to fix the filter structure in the first hole section.

6. The oil viscosity head structure according to claim 5, characterized in that, One of the first limiting part and the second limiting part is a protruding structure, and the other of the first limiting part and the second limiting part is a recessed structure.

7. The oil viscosity head structure according to claim 2, characterized in that, The filter section is a tubular structure, and the end of the tubular structure opposite to the mounting section is a closed structure.

8. The oil viscosity head structure according to claim 7, characterized in that, The diameter of the tubular structure is D1, and the diameter of the first hole segment is D, satisfying: D1≤D.

9. The oil viscosity head structure according to claim 7, characterized in that, The axial length of the tubular structure is L1, and the axial length of the second hole segment is L, satisfying: L1≤L.

10. The oil viscosity head structure according to claim 4, characterized in that, The width of the mounting part is T1, and the width of the step surface is T, satisfying: 0 < T1 ≤ T.

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