Positioning pin combination structure of refrigeration compressor end cover

Abstract

The utility model discloses a positioning pin combination structure of a refrigeration compressor end cover, and particularly relates to the technical field of positioning pins, the positioning pin combination structure comprises a pin column, a pin head and a pin sleeve, one side of the pin head is fixedly connected with the pin column, the pin sleeve is movably sleeved on the pin column, the other end of the pin column is movably provided with an extension column, one side of the extension column is fixedly communicated with a hollow threaded rod, and the hollow threaded rod is fixedly connected with the pin head. One end of the hollow threaded rod penetrates through the pin column and the pin head, a sealing sleeve is movably arranged on the other side of the pin head, and the sealing sleeve is in threaded connection with the outer side of the hollow threaded rod. The pin column is inserted into the pin hole in the end cover of the refrigeration compressor, the pin head is rotated to enable the pin column to axially move in the pin hole, the sealing sleeve is rotated to enable the sealing sleeve to be arranged on the hollow threaded rod in a sleeving mode, and therefore the pin head, the hollow threaded rod and the extension column are fixed, the length of the pin column can be increased, and the service life of the pin column is prolonged. Extension columns with different lengths can be replaced according to different end covers, operation is easy, the length of the pin column can be conveniently adjusted, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning pin technical field, more specifically, the utility model relates to the positioning pin combination structure of refrigeration compressor end cover. BACKGROUND

[0002] The refrigeration compressor end cover is an important part of the refrigeration compressor, usually located at the end of the compressor (such as cylinder end, motor end, etc.), plays a closed cavity, support internal structure, fixed parts and sealing effect, positioning pin is used to determine the relative position of cylindrical parts between parts, in the end cover assembly plays a precise positioning and prevent misplacement effect.

[0003] Through the search, the patent with the announcement number CN219262905U discloses a new type combined positioning pin, the inner cylinder of the pin sleeve and the pin column is matched, is fixed through the pressure ring buckle, the cooperation between each fastener is compact, when the pin column rotates, the pin sleeve will not rotate, prevents the relative movement of the sealing ring during assembly process and misplacement and the gap between the median surface, so that the utility model solves the problem that the existing positioning pin is prone to large gap and poor positioning effect, has the advantages of firm fixation and good positioning effect.

[0004] The above-mentioned positioning pin is used, the pin sleeve is clamped on the pin column through the pressure ring, and can move up and down within a certain range, but it is not convenient to adjust the length of the pin column, the relative axial distance between the end cover and the pin column needs to be changed under different working conditions (such as adjusting the compression cavity volume, adapting to different thickness of the sealing gasket), and the pin column with fixed length is difficult to adjust through its own structure, so the application range is small. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a positioning pin combination structure of refrigeration compressor end cover, which aims at solving the problems in the above background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the positioning pin combination structure of refrigeration compressor end cover, including pin column, pin head and pin sleeve, one side of pin head is fixedly connected with pin column, and pin sleeve is movably sleeved on pin column, the other end of pin column is movably provided with extension column, one side of extension column is fixedly connected with hollow screw rod, one end of hollow screw rod penetrates pin column and pin head, the other side of pin head is movably provided with sealing sleeve, and sealing sleeve is screw connected with the outside of hollow screw rod, one side of sealing sleeve is fixedly connected with second gasket, and one side of second gasket is in contact with pin head.

[0007] Further, one side of the extension column is fixedly connected with a plurality of insertion rods, and one end of the plurality of insertion rods is inserted into the inside of the pin column.

[0008] It can be seen that the above technical scheme can improve the stability between the pin and the extension column.

[0009] Further, one side of the extension column is movably provided with a first gasket, and one side of the first gasket is in contact with the pin.

[0010] It can be seen that the first gasket can further improve the stability between the pin and the extension column in the above technical scheme.

[0011] Further, the outer side of the pin is provided with a plurality of clamping grooves, the inner sides of the plurality of clamping grooves are movably provided with clamping blocks, and the plurality of clamping blocks are fixedly installed in the inner side of the pin sleeve.

[0012] It can be seen that the plurality of clamping blocks and the plurality of clamping grooves cooperate to limit the deflection of the pin sleeve in the above technical scheme.

[0013] Further, the inner side of the extension column is fixedly connected with a support plate, the support plate is provided with a reinforcing assembly, the reinforcing assembly comprises a piston cylinder, a limiting rod and a spring, and the number of the reinforcing assembly is two.

[0014] Further, one end of the piston cylinder penetrates the extension column, and the piston cylinder movably sleeves the limiting rod, and one end of the limiting rod is fixedly connected with the support plate.

[0015] It can be seen that the two piston cylinders extrude the end cover in the above technical scheme, further improving the stability between the pin and the end cover.

[0016] Further, the spring movably sleeves the limiting rod, and both ends of the spring are fixedly connected with the piston cylinder and the support plate.

[0017] It can be seen that the two piston cylinders move away from each other in the above technical scheme, which can drive the two springs to stretch, and when the gas is discharged, the two springs rebound to reset the two piston cylinders.

[0018] The technical effects and advantages of the utility model are as follows:

[0019] 1、 the utility model discloses a pin is inserted into the pin hole on the end cover of refrigeration compressor, rotates the pin head and makes the pin in the pin hole axial movement, rotates the sealing sleeve and makes it sleeve sets on the hollow screw rod, so that the pin head, hollow screw rod and extension column are fixed, so that the length of pin can be extended, according to the end cover of different length change extension column, simple operation, convenient adjustment the length of pin, wide application range;

[0020] 2. The utility model discloses a hollow threaded rod is connected with the output of external air pump, and gas enters the extension column through the hollow threaded rod, and the gas is extruded to two piston cylinders, and the end cover is extruded through two piston cylinders, so that the stability between the pin post and the end cover is further improved, the sealing sleeve is sleeved on the hollow threaded rod, so that the gas in the extension column can be prevented from discharging through the hollow threaded rod, and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0021] The structure, proportion, size etc. shown in the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the utility model that can be implemented, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the scope covered by the technical content disclosed by the utility model.

[0022] Figure 1 It is the overall structure schematic view of the utility model;

[0023] Figure 2 It is the overall structure bottom view of the utility model;

[0024] Figure 3 It is the pin post and pin head assembly structure schematic view of the utility model;

[0025] Figure 4 It is the extension column and sealing sleeve assembly structure schematic view of the utility model;

[0026] Figure 5 It is the extension column and reinforcing assembly assembly structure schematic view of the utility model.

[0027] In the drawing: 1, pin post; 2, pin head; 3, pin sleeve; 4, clamping groove; 5, extension column; 6, reinforcing assembly; 7, sealing sleeve; 8, clamping block; 9, hollow threaded rod; 10, insertion rod; 11, first gasket; 12, second gasket; 13, support plate; 601, piston cylinder; 602, limiting rod; 603, spring. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described examples are part of the embodiments of the utility model, not all. Based on the examples in the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] REFER TO THE SPECIFICATIONFigures 1-5 The positioning pin combination structure of the refrigeration compressor end cover of the embodiment comprises a pin column 1, a pin head 2 and a pin sleeve 3, one side of the pin head 2 is fixedly connected with the pin column 1, and the pin sleeve 3 is movably sleeved on the pin column 1, the other end of the pin column 1 movably has an extension column 5, one side of the extension column 5 is fixedly connected with a hollow threaded rod 9, one end of the hollow threaded rod 9 penetrates through the pin column 1 and the pin head 2, the other side of the pin head 2 movably has a sealing sleeve 7, and the sealing sleeve 7 is screw-connected with the outside of the hollow threaded rod 9, one side of the sealing sleeve 7 is fixedly connected with a second gasket 12, and one side of the second gasket 12 is in contact with the pin head 2.

[0030] Further, one side of the extension column 5 is fixedly connected with a plurality of insertion rods 10, one end of each of the plurality of insertion rods 10 is inserted into the inside of the pin column 1, one side of the extension column 5 movably has a first gasket 11, one side of the first gasket 11 is in contact with the pin column 1, the outside of the pin column 1 is provided with a plurality of clamping grooves 4, and the inside of each of the plurality of clamping grooves 4 movably has a clamping block 8, and each of the plurality of clamping blocks 8 is fixedly installed in the inside of the pin sleeve 3.

[0031] Further, the inside of the extension column 5 is fixedly connected with a support plate 13, the support plate 13 is provided with a reinforcing assembly 6, the reinforcing assembly 6 comprises a piston cylinder 601, a limiting rod 602 and a spring 603, and the number of the reinforcing assembly 6 is two, one end of the piston cylinder 601 penetrates through the extension column 5, and the piston cylinder 601 is movably sleeved on the limiting rod 602, one end of the limiting rod 602 is fixedly connected with the support plate 13, the spring 603 is movably sleeved on the limiting rod 602, and both ends of the spring 603 are fixedly connected with the piston cylinder 601 and the support plate 13 respectively.

[0032] When the extension column 5 is inserted into the pin hole, the output end of the external air pump is connected with the hollow threaded rod 9, the gas enters the extension column 5 through the hollow threaded rod 9, the gas extrudes the two piston cylinders 601, and the two piston cylinders 601 slide on the two limiting rods 602 respectively, the end cover is extruded by the two piston cylinders 601, thereby further improving the stability between the pin column 1 and the end cover, the sealing sleeve 7 is sleeved on the hollow threaded rod 9, thereby preventing the gas in the extension column 5 from being discharged through the hollow threaded rod 9, the structure is simple and convenient to use, and the movement of the two piston cylinders 601 away from each other can drive the two springs 603 to stretch, and when the gas is discharged, the two springs 603 rebound to drive the two piston cylinders 601 to reset.

[0033] The use method of the embodiment is as follows:

[0034] In use, the pin 1 is inserted into the pin hole on the refrigeration compressor end cover, the pin head 2 is rotated and the pin 1 is axially moved in the pin hole, the stability between the pin head 2 and the end cover can be improved through the pin sleeve 3, the multiple clamping blocks 8 and the multiple clamping grooves 4 can cooperate to limit the deflection of the pin sleeve 3, the extension column 5 is placed on one side of the pin 1, and one end of the hollow threaded rod 9 passes through the pin 1 and the pin head 2, and the four insertion rods 10 are inserted into the inside of the pin 1, so that the stability between the pin 1 and the extension column 5 can be improved, the first gasket 11 can further improve the stability between the pin 1 and the extension column 5, the sealing sleeve 7 is rotated and is sleeved on the hollow threaded rod 9, so that the pin head 2, the hollow threaded rod 9 and the extension column 5 are fixed, so that the length of the pin 1 can be lengthened, different lengths of the extension column 5 are replaced according to different end covers, the length of the pin 1 is simple and convenient to adjust, the scope of application is wide, and the second gasket 12 can improve the sealing performance between the sealing sleeve 7 and the pin head 2.

[0035] The contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used, in the technical scheme, the electric appliance control elements not mentioned belong to the prior art, so they are not shown in the drawings, and will not be described here.

[0036] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning pin assembly structure of a refrigeration compressor end cover, comprising a pin stem (1), a pin head (2) and a pin sleeve (3), one side of the pin head (2) is fixedly connected with the pin stem (1), and the pin sleeve (3) is movably sleeved on the pin stem (1), characterized in that: The other end of the pin column (1) movably provided with an extension column (5), one side of the extension column (5) is fixedly connected with a hollow threaded rod (9), and one end of the hollow threaded rod (9) penetrates the pin column (1) and the pin head (2), the other side of the pin head (2) movably provided with a sealing sleeve (7), and the sealing sleeve (7) is screwed with the outside of the hollow threaded rod (9), one side of the sealing sleeve (7) is fixedly connected with a second gasket (12), and one side of the second gasket (12) is in contact with the pin head (2).

2. The set of locating pins of a refrigeration compressor end cover according to claim 1, characterized in that: One side of the extension column (5) is fixedly connected with a plurality of plug rods (10), and one end of the plurality of plug rods (10) is inserted into the inside of the pin column (1).

3. The set of alignment pins of a refrigeration compressor end cover according to claim 1, characterized in that: One side of the extension column (5) movably provided with a first gasket (11), and one side of the first gasket (11) is in contact with the pin column (1).

4. The set of alignment pins of a refrigeration compressor end cover according to claim 1, characterized in that: The outside of the pin column (1) is provided with a plurality of clamping grooves (4), and the inside of the plurality of clamping grooves (4) is movably provided with a clamping block (8), and the plurality of clamping blocks (8) are fixedly installed in the inside of the pin sleeve (3).

5. The set of alignment pins of a refrigeration compressor end cap according to claim 1, wherein: The inside of the extension column (5) is fixedly connected with a support plate (13), and the support plate (13) is provided with a reinforcing assembly (6), the reinforcing assembly (6) comprises a piston cylinder (601), a limiting rod (602) and a spring (603), and the number of reinforcing assemblies (6) is two.

6. The set of locating pins of a refrigeration compressor end cover according to claim 5, characterized in that: One end of the piston cylinder (601) penetrates the extension column (5), and the piston cylinder (601) movably sheaths the limiting rod (602), and one end of the limiting rod (602) is fixedly connected with the support plate (13).

7. The set of alignment pins of a refrigeration compressor end cover according to claim 5, characterized in that: The spring (603) movably sheaths the limiting rod (602), and the two ends of the spring (603) are fixedly connected with the piston cylinder (601) and the support plate (13) respectively.

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