Sleeving device for sealing ring at end part of pressure switch of automobile air conditioner

Abstract

The utility model relates to the technical field of pressure switch production, in particular to an automobile air conditioner pressure switch end sealing ring sleeving device which comprises an installation pipe, an air cylinder, an ejector block, a guide rod, a first spring and an opening mechanism. The air cylinder is installed on the top of the installation pipe, the ejector block is fixedly arranged at the telescopic end of the air cylinder, and a clamping groove is formed in the outer side of the installation pipe; according to the sealing ring sleeving device for the end portion of the pressure switch of the automobile air conditioner, a plurality of sealing rings can be preset at a time, the installed sealing rings can be effectively limited, when a supporting rod is in a non-supporting state, the sealing rings can be fixed on the supporting rod, and therefore the sealing rings can be prevented from being damaged. The limiting clamping block effectively prevents the preset sealing ring from falling off, when the sealing ring is installed, the jacking block can control the supporting rod to be opened, the limiting clamping block is made to automatically retract backwards, the supported sealing ring can be conveniently installed, and therefore rapid and continuous sealing ring installation work is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure switch production technical field especially relates to a kind of automobile air conditioner pressure switch end sealing ring setting device. BACKGROUND

[0002] The working principle of automobile air conditioner pressure switch mainly involves monitoring and controlling the pressure of refrigeration system to ensure normal operation and prevent damage. High-pressure switch is installed in high-pressure pipeline, usually on the liquid accumulator dryer, in series in the compressor electromagnetic clutch circuit or condenser fan circuit. When the system pressure is too high, the high-pressure switch acts, cutting off the clutch circuit or connecting the cooling fan high-speed block circuit, to prevent the pressure from rising further and avoid damaging the system.

[0003] The automobile air conditioner pressure switch is generally provided with a power plug at one end, and a threaded connection end at the other end. A sealing ring is sleeved on the end of the threaded connection end for sealing. Since the inner diameter of the sealing ring is smaller than the outer diameter of the threaded end, the sealing ring needs to be expanded during installation to facilitate installation. The existing expansion device can only expand one sealing ring at a time, which requires frequent expansion and installation of the sealing ring during production, affecting continuous production and production efficiency. SUMMARY

[0004] The utility model provides a kind of automobile air conditioner pressure switch end sealing ring setting device for the defects in the prior art.

[0005] The utility model is realized by the following technical solutions:

[0006] A kind of automobile air conditioner pressure switch end sealing ring setting device, including installation pipe, cylinder, top block, guide rod, first spring and expansion mechanism, the cylinder is installed in the top of the installation pipe, the top block is fixedly arranged in the telescopic end of cylinder, the outside of installation pipe is provided with clamping groove, and guide rod is fixedly arranged in its inside, the first spring and the expansion mechanism are sleeved on the outside of guide rod, the expansion mechanism includes support rod, extrusion seat, limiting rod, second spring, pressing strip, crowbar, connecting shaft, limiting block and third spring, the extrusion seat is fixedly arranged on the inside top of support rod, and installation slot is formed in the inside of support rod, the limiting rod and the connecting shaft are fixedly arranged in the installation slot in the inside of support rod, the second spring is sleeved on the outside of limiting rod, the pressing strip is clamped on the end of limiting rod, the crowbar is movably connected with connecting shaft, the limiting block is fixed on the outside of the bottom of crowbar, and the third spring is clamped on the back of limiting block.

[0007] In a preferred embodiment of the utility model, a collar is provided on one side of the crowbar, and the collar is sleeved on the outside of the connecting shaft.

[0008] The pry lever is connected with the connecting shaft through the sleeve ring to form a lever structure, so that when the pressing strip presses one end of the pry lever, the pry lever rotates around the connecting shaft, drives the limiting block to retract, and thus facilitates the removal of the installed sealing ring.

[0009] In a preferred embodiment of the present application, the third spring is in contact with one side of the internal mounting groove of the support rod, and the limiting block is in contact with the outside of the support rod.

[0010] The third spring supports the limiting block, so that the limiting block supports the sealing ring when the sealing ring is installed on the outside of the support rod.

[0011] In a preferred embodiment of the present application, the top of the pry lever is in contact with the inside of the pressing strip, and the pressing strip is in contact with the outside of the support rod.

[0012] In a preferred embodiment of the present application, the bottom of the top block is in the shape of a circular truncated cone, and the support rod is in the shape of a zigzag.

[0013] The downward movement of the top block not only extrudes the pressing strip, but also retracts the limiting block, and at the same time, the support rod is expanded outward to support the sealing ring, facilitating the installation work.

[0014] In a preferred embodiment of the present application, the extrusion seat is provided with a clamping hole on one side, and the extrusion seat is sleeved on the outside of the guide rod through the clamping hole.

[0015] The present application has the following advantages:

[0016] The automobile air conditioner pressure switch end sealing ring sleeving device can preset multiple sealing rings at a time, effectively limits the installed sealing ring, effectively prevents the preset sealing ring from falling when the support rod is not expanded, controls the expansion of the support rod when the sealing ring is installed, and automatically retracts the limiting block, facilitating the installation of the expanded sealing ring, thereby realizing rapid and continuous sealing ring installation work. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective view of the automobile air conditioner pressure switch end sealing ring sleeving device of the present application;

[0018] Figure 2 FIG. 4 is a partial cross-sectional view of the automobile air conditioner pressure switch end sealing ring sleeving device of the present application;

[0019] Figure 3 FIG. 6 is a structure diagram of the expansion mechanism of the automobile air conditioner pressure switch end sealing ring sleeving device of the present application;

[0020] Figure 4 The present application is Figure 3A local enlarged structure schematic view at the middle A;

[0021] Figure 5 For the utility model Figure 3 A local enlarged structure schematic view at the middle B.

[0022] In the figure: 1, installation pipe; 2, cylinder; 3, top block; 4, guide rod; 5, first spring; 6, prop open mechanism; 61, prop rod; 62, extrusion seat; 63, limiting rod; 64, second spring; 65, pressing strip; 66, crowbar; 67, connecting shaft; 68, limiting block; 69, third spring. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. The directions mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "top" and "bottom", are only the directions of the attached drawings. Therefore, the directions used are used to explain and understand the utility model, not to limit the utility model.

[0024] As Figures 1-5 shown in a kind of automobile air conditioner pressure switch end sealing ring nesting device, including installation pipe 1, cylinder 2, top block 3, guide rod 4, first spring 5 and prop open mechanism 6, cylinder 2 is installed in installation pipe 1 top, top block 3 is fixedly arranged in the telescopic end of cylinder 2, installation pipe 1 outside is provided with clamping groove, its inside is fixedly provided with guide rod 4, first spring 5 and prop open mechanism 6 are nested in the outside of guide rod 4, prop open mechanism 6 includes prop rod 61, extrusion seat 62, limiting rod 63, second spring 64, pressing strip 65, crowbar 66, connecting shaft 67, limiting block 68 and third spring 69, extrusion seat 62 is fixedly arranged in the inside top of prop rod 61, prop rod 61 is provided with installation groove inside, limiting rod 63 and connecting shaft 67 are fixedly arranged in the installation groove inside of prop rod 61, second spring 64 is nested in the outside of limiting rod 63, pressing strip 65 is clamped in the end of limiting rod 63, crowbar 66 is movably connected with connecting shaft 67, limiting block 68 is fixed to the outside of the bottom of crowbar 66, third spring 69 is clamped in the back of limiting block 68.

[0025] Specifically, the pry bar 66 is provided with a sleeve ring on one side, the sleeve ring is sleeved on the outside of the connecting shaft 67, one end of the third spring 69 is in contact with one side of the mounting groove in the inside of the support rod 61, one end of the limiting block 68 penetrates and extends to the outside of one side of the support rod 61, the bottom of the limiting block 68 is inclined downward, the top of the pry bar 66 is in contact with the inside of the pressing strip 65, one side of the pressing strip 65 penetrates and extends to the outside of one side of the support rod 61, the bottom of the top block 3 is in a circular table structure, the support rod 61 is in a zigzag structure, the extrusion seat 62 is provided with a clamping hole on one side, and the extrusion seat 62 is sleeved on the outside of the guide rod 4 through the clamping hole on one side.

[0026] In the embodiment, a plurality of sealing rings are first needed to be preset on the outside of the expansion mechanism 6, so as to facilitate subsequent sealing ring installation work, at this time, the cylinder 2 is in a contracted state, the limiting block 68 at the bottom of the pry bar 66 is controlled by the third spring 69 to be in a ejection state, and the bottom of the limiting block 68 is inclined downward, so that the sealing ring can be sleeved upward from the bottom of the support rod 61 until the top of the limiting block 68, at this time, the sealing ring is blocked by the top of the limiting block 68 and cannot fall off, so that a plurality of sealing rings can be sleeved on the outside of the support rod 61, to facilitate subsequent sealing ring installation work.

[0027] Further, when it is needed to install a sealing ring at the end of the automobile pressure switch, the cylinder 2 is extended, the top block 3 is controlled to move downward, the top block 3 moves and acts on the inside of the support rod 61, so as to expand the support rod 61 outward, at this time, the first spring 5 is compressed and contracted, the extrusion seat 62 is guided by the guide rod 4 and moves outward horizontally, so as to expand the sealing ring sleeved on the outside of the support rod 61, when the top block 3 moves downward and extrudes the pressing strip 65, the pressing strip 65 is guided by the limiting rod 63 and extrudes the second spring 64, the pressing strip 65 is retracted and extrudes the end of the pry bar 66, so as to rotate the pry bar 66 around the connecting shaft 67, so that the limiting block 68 at the bottom end of the pry bar 66 is retracted into the inside of the support rod 61, the third spring 69 is compressed and contracted, since the support rod 61 has been expanded at this time, the expanded sealing ring cannot fall off, and the retracted limiting block 68 cannot block the downward sliding sealing ring, so as to facilitate the installation work of the sealing ring, at the same time, the expanded sealing ring is sequentially slid downward to the end of the pressure switch, to facilitate continuous installation work, when the cylinder 2 controls the top block 3 to retract, the first spring 5 controls the support rod 61 to reset, the second spring 64 controls the pressing strip 65 to reset, and the third spring 69 controls the limiting block 68 to reset, so as to facilitate the installation of the sealing ring again.

[0028] It should be noted that the parts not involved in the utility model are the same as or can be realized by the prior art; the various drives in the utility model can be realized by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, connecting rods and guide rods, and are not limited to the description in the specification and the structure in the drawings.

[0029] In the description of the embodiments of the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "setting", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The above-described embodiments only express several embodiments of the present application, which are described in detail and in detail, but should not be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A kind of automobile air conditioner pressure switch end sealing ring nesting device, including installation pipe (1), cylinder (2), top block (3), guide rod (4), first spring (5) and prop open mechanism (6), it is characterized by: The cylinder (2) is mounted on the top of the mounting pipe (1), the top block (3) is fixedly arranged on the telescopic end of the cylinder (2), the clamping groove is arranged on the outer side of the mounting pipe (1), the guide rod (4) is fixedly arranged in the clamping groove, the first spring (5) and the opening mechanism (6) are arranged outside the guide rod (4); The opening mechanism (6) comprises a supporting rod (61), an extrusion seat (62), a limiting rod (63), a second spring (64), a pressing strip (65), a lever (66), a connecting shaft (67), a limiting block (68) and a third spring (69), the extrusion seat (62) is fixedly arranged on the inner top of the supporting rod (61), the mounting groove is arranged in the supporting rod (61), the limiting rod (63) and the connecting shaft (67) are fixedly arranged in the mounting groove of the supporting rod (61), the second spring (64) is arranged outside the limiting rod (63), the pressing strip (65) is arranged on the end of the limiting rod (63), the lever (66) is movably connected with the connecting shaft (67), the limiting block (68) is fixedly arranged on the bottom of the lever (66), and the third spring (69) is arranged on the back of the limiting block (68).

2. The automotive air conditioning pressure switch end seal snaring device of claim 1, wherein: The lever (66) is provided with a sleeve ring on one side, and the sleeve ring is arranged outside the connecting shaft (67).

3. The automotive air conditioning pressure switch end seal snaring device of claim 1, wherein: One end of the third spring (69) is in contact with one side of the mounting groove in the supporting rod (61), one end of the limiting block (68) penetrates and extends to the outside of one side of the supporting rod (61), and the bottom of the limiting block (68) is arranged in an inclined downward manner.

4. The automotive air conditioning pressure switch end seal snaring device of claim 1, wherein: The top of the lever (66) is in contact with the inner side of the pressing strip (65), and one side of the pressing strip (65) penetrates and extends to the outside of one side of the supporting rod (61).

5. The automotive air conditioning pressure switch end seal snaring device of claim 1, wherein: The bottom of the top block (3) is in a circular truncated cone structure, and the supporting rod (61) is in a zigzag structure.

6. The automotive air conditioning pressure switch end seal snaring device of claim 1, wherein: One side of the extrusion seat (62) is provided with a clamping hole, and the extrusion seat (62) is arranged outside the guide rod (4) through the clamping hole.

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