CN214304812U

CN214304812U - Bolt protective cover and air condensing units

Info

Publication number: CN214304812U
Application number: CN202023341406.6U
Authority: CN
Inventors: 简建伟; 卢毅强; 金敏聪; 张清祥
Original assignee: TCL Air Conditioner Zhongshan Co Ltd
Current assignee: TCL Air Conditioner Zhongshan Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-28
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a bolt visor and air condensing units, wherein, the bolt visor includes: the clamping device comprises a cover body and a clamping piece, wherein an accommodating cavity is formed in the cover body, and an opening is formed in the surface of the cover body by the accommodating cavity; the clamping pieces are circumferentially arranged along the side wall of the accommodating cavity and are positioned at the edge of the opening. The utility model discloses technical scheme passes through bolt visor shroud bolt to avoid the bolt to rust and corrode because of weing, can prolong the life of bolt, improve the quality of product.

Description

Bolt protective cover and air condensing units

Technical Field

The utility model relates to a fastener technical field, in particular to bolt visor and air condensing units.

Background

The heat exchange system of the air conditioner is a closed system and consists of an exhaust pipe and an air return pipe which are respectively connected with a compressor and a condenser. The discharge pipe and the return pipe are partially arranged in the compressor cabin, and refrigerant flows in the pipelines in the discharge pipe and the return pipe. When low-temperature low-pressure gas flows in the pipeline, the temperature of the outer surface of the pipeline is low, water drops are easily formed, the formed water drops can flow downwards along the pipeline and are accumulated at the downward bent part of the pipeline, and when the water drops accumulate to a certain weight, the water drops can drip on the compressor and a base plate of a compressor cabin. In general, the outer surfaces of the compressor and the compressor cabin base plate are subjected to spraying treatment, and condensed water dropping on the compressor and the compressor cabin base plate slowly evaporates or is discharged to the outside of the machine body along the compressor cabin base plate, so that the influence on parts is small.

Wherein, compressor bolt on the chassis is for the fastening flange face nut, and the screw thread part of compressor bolt is not the spraying, and the condensate water drips on the compressor bolt, can lead to the compressor bolt to rust, and long this past, will appear flange face nut and twist not to open or even the phenomenon that the compressor bolt corrodes and breaks, causes the product quality problem. In order to prevent this, the downward bent portion of the pipeline should be prevented from facing the compressor bolt in the pipeline design, but the pipeline is limited by the space structure, and a part of the pipeline cannot be avoided in the design, and at this time, the compressor bolt is corroded by moisture.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a bolt visor and air condensing units aims at through bolt visor shroud bolt to avoid the bolt to rust and corrode because of weing, can prolong the life of bolt, improve the quality of product.

In order to achieve the above object, the utility model provides a bolt protective cover, include: the clamping device comprises a cover body and a clamping piece, wherein an accommodating cavity is formed in the cover body, and an opening is formed in the surface of the cover body by the accommodating cavity; the clamping pieces are circumferentially arranged along the side wall of the accommodating cavity and are positioned at the edge of the opening.

Optionally, the clamping pieces are clamping blocks, and the clamping blocks are arranged in pairs along the side wall of the accommodating cavity in an opposite manner.

Optionally, the clamping piece is a clamping strip, and the clamping strip extends along the circumferential direction of the side wall of the accommodating cavity and encloses the accommodating cavity.

Optionally, the thickness of the fixture block protruding out of the side wall of the accommodating cavity is gradually increased from the opening to the inside of the accommodating cavity.

Optionally, the cover comprises: the first cover part and the second cover part are arranged, and a first cavity is arranged in the first cover part; the inside that the second lid closed the portion is equipped with the second cavity, and the one end that the second lid closed the portion is located to first lid, and the second cavity communicates with first cavity in order to form the holding chamber, and the second cavity closes the portion at the second and keeps away from the one end that the first lid closed the portion and be formed with the opening.

Optionally, the first cavity and the second cavity are both cylindrical.

Optionally, the bolt protection cap further comprises: and the damping pad is attached to the inner wall of the accommodating cavity.

Optionally, the vibration damping pad is attached to the bottom wall of the accommodating cavity far away from the opening.

Optionally, the damping pad is made of a sponge material; and/or the cover body is made of plastic materials.

In order to achieve the above object, the utility model provides an air conditioner outdoor unit, include: the bolt protection cover comprises a compressor cabin, a compressor, bolts and a bolt protection cover, wherein the compressor cabin comprises a chassis; the compressor is arranged on the base plate, a support is arranged at the bottom end of the compressor, and a pipeline is connected to the compressor; the bolts penetrate through the chassis and the bracket so as to fix the compressor on the chassis, wherein the downward bending part of the pipeline is positioned right above the bolts; the bolt protective cover covers the part of the bolt extending out of the bracket.

The technical scheme of the utility model, through with bolt visor shroud on exerted bolt, make the bolt stretch into the holding intracavity of bolt visor, the bolt visor can cover the bolt completely, make the bolt keep apart with external environment, can prevent that external moisture from dripping on the bolt, can avoid the bolt to rust and corrode because of weing, thereby effectively protect the complete of bolt structure, the life of extension bolt, improve the quality of product, and, the fastener card through holding intracavity wall is held on the head of bolt or with bolted connection's nut, can firmly fix the bolt visor on the bolt, guarantee the stable connection between bolt visor and the bolt, can avoid the bolt visor to loose easily from the bolt and take off, make the bolt visor can cover the bolt for a long time, in order to exert the guard action to the bolt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the bolt protection cover of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the bolt protection cover of FIG. 1 from another perspective;

FIG. 4 is a schematic view of a prior art bolt and nut assembly;

FIG. 5 is a schematic view of the bolt protection cover and the bolt and nut assembly of FIG. 1;

FIG. 6 is a schematic cross-sectional view taken at B-B in FIG. 5;

fig. 7 is a schematic structural view of an embodiment of an outdoor unit of an air conditioner according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Bolt protective cover	210	Head part
110	Cover body	220	Rod part
				111	The first cover part	300	Nut
1111	A first cavity	310	Flange face
				112	Second covering part	400	Compressor nacelle
1121	Second cavity	410	Chassis
				1122	Opening of the container	420	Support base
120	Clamping block	500	Compressor
				121	Guide surface	510	Support frame
122	Clamping surface	520	Pipeline
				130	Vibration damping pad	600	Heat radiation fan
200	Bolt

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a bolt visor 100.

In the embodiment of the present invention, as shown in fig. 1 to 3, the bolt protection cover 100 includes: a cover body 110, wherein an accommodating cavity is arranged inside the cover body 110, and an opening 1122 is formed on the surface of the cover body 110 in the accommodating cavity; the clamping pieces are circumferentially arranged along the side wall of the accommodating cavity and are positioned at the edge of the opening 1122.

It should be noted that the bolt protection cover 100 of the present invention can be applied to a product which needs to be fastened by the bolt 200 and the bolt 200 is exposed to a humid or corrosive atmosphere, such as an outdoor unit of an air conditioner (as shown in fig. 7). On the base plate of the compressor compartment of the outdoor unit of the air conditioner, after the bolt 200 is fastened to the nut 300, the bolt 200 is exposed to the atmospheric environment, and condensed water is likely to drip thereon. For convenience of description, an outdoor unit of an air conditioner is described as an example of an application object of the bolt protection cover 100 of the present invention.

Specifically, the nut 300 in this embodiment is a flange hexagonal nut 300 (as shown in fig. 4), and the flange hexagonal nut 300 means that one end of the nut 300 has a wide flange, which can be used as an integrated washer for distributing the pressure of the nut 300 on the fixed component, thereby reducing the possibility of damage to the component. Referring to fig. 5 to 6, in the process of assembling the outdoor unit of the air conditioner, the bolt 200 is assembled upward from below the bottom plate 410 of the compressor compartment 400, the bolt 200 is sequentially inserted into the through hole of the bottom plate 410 of the compressor compartment 400 and the mounting hole of the bracket 510 of the compressor 500, when the head portion 210 of the bolt 200 abuts against the lower surface of the bottom plate 410 of the compressor compartment 400, the rod portion 220 of the bolt 200 is exposed from the mounting hole of the bracket 510 of the compressor 500, the exposed rod portion 220 of the bolt 200 is provided with a thread, the nut 300 is sleeved on the rod portion 220 of the bolt 200, and the nut 300 is screwed with the bolt 200, so that the bracket 510 of the compressor 500 can be fastened on the bottom plate 410 of the compressor compartment 400. Of course, the nut 300 may be a conventional hexagonal nut 300 without a flange surface 310, which is not limited by the present invention.

Wherein, the size of bolt visor 100 and the big or small adaptation of bolt 200 and nut 300, after accomplishing the fastening of bolt 200 and nut 300, alright will the utility model discloses a bolt visor 100 shroud is on the exposed part of bolt 200 and nut 300, covers the exposed part of bolt 200 and nut 300 completely, simultaneously, through pressing bolt visor 100, makes bolt visor 100 produce certain deformation, can go into the clearance between flange face 310 of nut 300 and compressor 500 support 510 with the fastener card of holding chamber lateral wall to fix bolt visor 100 on bolt 200. It can be understood that, in order to allow the clip of the bolt protection cover 100 to be smoothly clipped into the gap between the nut 300 and the bracket 510 of the compressor 500, it is the best time point for assembling the bolt protection cover 100 when a certain gap is reserved between the nut 300 and the bracket 510 of the compressor 500 immediately before the bolt 200 is completely tightened, at this time, the bolt protection cover 100 is covered on the bolt 200, and after the clip is clipped onto the surface of the nut 300 facing the bracket 510 of the compressor 500, the bolt 200 is completely tightened, and the clip is clipped by the nut 300 and the bracket 510 of the compressor 500.

Of course, bolt 200 may be assembled downward from above base plate 410 of compressor nacelle 400, and then, the rod portion of bolt 200 is inserted into the mounting hole of compressor 500 bracket 510 and the through hole on base plate 410 of compressor nacelle 400 in this order, the head portion of bolt 200 abuts on the upper surface of compressor 500 bracket 510, and nut 300 is screwed with the rod portion of bolt 200, so that when bolt 200 protective cover 100 is covered on bolt 200, the hook of bolt 200 protective cover 100 is engaged in the gap between the head portion of bolt 200 and compressor 500 bracket 510.

Therefore, in the technical solution of the present invention, by covering bolt protection cover 100 on exposed bolt 200, bolt 200 is extended into the accommodating cavity of bolt protection cover 100, bolt protection cover 100 can completely cover bolt 200, so that bolt 200 is isolated from the external environment, condensed water generated on the surface of the pipe of the air-conditioning heat exchange system can be prevented from dropping on bolt 200, rust and corrosion of bolt 200 due to moisture can be avoided, thereby effectively protecting the integrity of bolt 200 structure, prolonging the service life of bolt 200, improving the product quality of the air-conditioning outdoor unit, and further, by clamping the fastener of the inner wall of the accommodating cavity on the head of bolt 200 or nut 300 connected with bolt 200, bolt protection cover 100 can be firmly fixed on bolt 200, ensuring stable connection between bolt protection cover 100 and bolt 200, and preventing bolt 100 from easily loosening from bolt 200, so that bolt protection cover 100 can cover bolt 200 for a long time to exert a protective effect on bolt 200.

As an embodiment, please refer to fig. 6, the locking member is a locking block 120, and the plurality of locking blocks 120 are arranged along the sidewall of the accommodating cavity in pairs.

In this embodiment, the plurality of blocks 120 are circumferentially spaced along the sidewall of the accommodating cavity, which is beneficial to slight deformation of the bolt protection cover 100, so that the blocks 120 can be clamped into the gap between the nut 300 and the compressor bracket, and meanwhile, the bolt protection cover 100 can be taken down from the bolt 200 by applying a slightly large reverse acting force, so that the bolt protection cover 100 can be conveniently assembled by an assembler and the bolt protection cover 100 can be conveniently disassembled by a maintainer. Moreover, the plurality of blocks 120 opposite to each other are engaged with the nut 300 at opposite positions, so that the bolt protection cover 100 can be stably and firmly fixed on the bolt 200 as much as possible, thereby preventing the bolt protection cover 100 from being easily loosened from the bolt 200.

As another embodiment, the clamping piece is a clamping strip, and the clamping strip extends along the circumferential direction of the side wall of the accommodating cavity and encloses the accommodating cavity.

In this embodiment, the clamping strip is enclosed along the sidewall of the accommodating cavity to form a ring-shaped structure, and through the structure, when the clamping strip is clamped into the gap between the nut 300 and the compressor bracket, the whole edge of the bolt protection cover 100 at the opening 1122 is clamped with the nut 300, so that the connection firmness of the bolt protection cover 100 and the nut 300 can be obviously improved, and the bolt protection cover 100 is prevented from being easily loosened from the bolt 200.

In an embodiment of the present invention, referring to fig. 6, the thickness of the fixture block 120 protruding the sidewall of the accommodating cavity gradually increases from the opening 1122 toward the inside of the accommodating cavity.

In this embodiment, the latch 120 forms a guiding surface 121 and a latching surface 122 engaged with the guiding surface 121 on the sidewall of the receiving cavity, and the guiding surface 121 is inclined with respect to the sidewall of the receiving cavity, and the engaging surface is perpendicular to the sidewall of the receiving cavity. When the bolt protection cover 100 is covered on the bolt 200, the guide surface 121 of the latch 120 contacts with the nut 300 first, when the bolt protection cover 100 is continuously pressed, the nut 300 slides upwards along the guide surface 121 of the latch 120, when the clamping surface 122 of the latch 120 contacts with the nut 300, the nut 300 is clamped in the right-angled groove formed by the clamping surface 122 of the latch 120 and the inner wall of the accommodating cavity, and at this time, the bolt protection cover 100 is completely fixed on the bolt 200. Therefore, it is easy to understand that the guide surface 121 of the latch 120 facilitates the assembling personnel to easily press the bolt protection cover 100 to clamp the latch 120 to the nut 300, thereby reducing the assembling difficulty, and the clamping surface 122 of the latch 120 facilitates to improve the firmness of the connection between the latch 120 and the nut 300, thereby improving the connection stability between the bolt protection cover 100 and the bolt 200.

Specifically, referring to fig. 1 to 3, the cover 110 includes: the first covering part 111 is provided with a first cavity 1111 inside the first covering part 111; the second cover portion 112, a second cavity 1121 is disposed inside the second cover portion 112, the first cover portion 111 is disposed at one end of the second cover portion 112, the second cavity 1121 is communicated with the first cavity 1111 to form an accommodating cavity, and an opening 1122 is formed in one end of the second cover portion 112, which is far away from the first cover portion 111, of the second cavity 1121.

In this embodiment, since the bolt protection cover 100 covers the bolt 200 and the nut 300 at the same time, and the nut 300 is the flange nut 300, in order to adapt to the shapes of the bolt 200 and the nut 300, in the present embodiment, the cover body 110 is provided in two parts, and covers the bolt 200 through the first covering portion 111, and covers the flange nut 300 through the second covering portion 112, because the area of the projection of the flange nut 300 on the horizontal plane is larger than the area of the projection of the bolt 200 on the horizontal plane, in this embodiment, the second covering portion 112 is provided to be larger than the first covering portion 111, so that the inner diameter of the second cavity 1121 formed in the second covering portion 112 is larger than the inner diameter of the first cavity 1111 formed in the first covering portion 111. Thus, first cavity 1111 may be adapted to a portion of bolt 200 exposed to nut 300, and second cavity 1121 may be adapted to flange nut 300, so as to completely cover the exposed portion of bolt 200, thereby preventing bolt 200 from rusting and corroding due to being wetted, thereby protecting the structural integrity of bolt 200, prolonging the service life of bolt 200, and improving the quality of the product.

Further, referring to fig. 1 to 3, the first cavity 1111 and the second cavity 1121 are both cylindrical.

In this embodiment, the cavity of the first cavity 1111 is configured to be cylindrical to fit the external shape of the bolt 200, and the nut 300 has a disk-shaped flange surface 310, and the second cavity 1121 is also configured to be cylindrical to fit the external shape of the nut 300 and the flange surface 310. Thus, when bolt protector cap 100 is placed over bolt 200, bolt 200 extends into cylindrical first cavity 1111 and flange nut 300 extends into cylindrical second cavity 1121. Therefore, bolt protection cover 100 can be well adapted to bolt 200 and nut 300, so as to completely cover the exposed portion of bolt 200 and nut 300, thereby preventing bolt 200 from rusting and corroding due to moisture, and simultaneously saving production raw materials and space occupation of bolt protection cover 100.

In an embodiment of the present invention, please refer to fig. 3, the bolt protection cover 100 further includes: and the damping pad 130, the damping pad 130 is attached to the inner wall of the accommodating cavity.

Since bolt protection cover 100 covers bolt 200, the compressor vibrates due to its operation when the air conditioner is operated, and bolt protection cover 100 collides with bolt 200 due to the vibration of the compressor, thereby generating noise. Therefore, in this embodiment, by disposing damping pad 130 on the inner wall of the receiving cavity, bolt 200 can be prevented from directly contacting the inner wall of the receiving cavity of bolt protection cover 100, so as to avoid collision between bolt 200 and bolt protection cover 100, meanwhile, damping pad 130 has certain elasticity, so as to absorb vibration impact of bolt protection cover 100, and noise can be effectively prevented from being generated by means of damping and buffering effects of damping pad 130.

Further, referring to fig. 3, the damping pad 130 is attached to the bottom wall of the accommodating cavity far from the opening 1122.

Because bolt protection cover 100 is when shroud on bolt 200, through the clearance between fastener card income nut 300 and the compressor support, fix bolt protection cover 100 on bolt 200, therefore, the diapire that the holding chamber is kept away from opening 1122 is inevitable with bolt 200 contact, in this embodiment, set up damping pad 130 on the diapire of holding chamber, can direct separation bolt 200 and the diapire contact of holding chamber, furthest reduce the possibility that bolt 200 and bolt protection cover 100 collide, simultaneously, with the help of the damping cushioning effect of damping pad 130, absorb the vibration impact of bolt protection cover 100, can effectively prevent the noise from producing. Of course, the damping pad 130 may be attached to the entire sidewall of the receiving cavity at the same time, so as to completely prevent the bolt 200 or the nut 300 from contacting the inner wall of the receiving cavity of the bolt protection cover 100, thereby preventing noise.

Further, the damping pad 130 is made of a sponge material.

The sponge is a porous elastic material made of wood cellulose fiber or foamed plastic polymer, etc. In this embodiment, the damping pad 130 is a sponge pad, and has a good damping and buffering effect and a sound absorbing effect. Damping pad 130 is isolated between bolt 200 and bolt protection cover 100, so that the phenomenon of noise generated by collision between bolt 200 and bolt protection cover 100 can be effectively prevented.

In an embodiment of the present invention, the cover 110 is made of plastic material.

Specifically, the cover 110 may be made of soft plastic, such as Polyethylene (PE), polypropylene (PP), Polystyrene (PS), etc., so that the cover 110 itself has certain elasticity and toughness, so that when the cover 110 is pressed, the fastener can be clamped into the gap between the nut 300 and the compressor bracket through the deformation of the cover 110 itself. On one hand, the difficulty of assembling the bolt protection cover 100 by an assembler can be reduced, and on the other hand, the damage of the structure of the cover body 110 due to deformation can be avoided.

The utility model discloses still provide an air condensing units, please refer to fig. 7, this air condensing units includes: compressor nacelle 400, compressor 500, bolts 200, and bolt protection cover 100, compressor nacelle 400 including base plate 410; the compressor 500 is arranged on the base plate 410, a bracket 510 is arranged at the bottom end of the compressor 500, and a pipeline 520 is connected to the compressor 500; bolts 200 pass through base plate 410 and bracket 510 to fix compressor 500 to base plate 410, wherein the down bend of pipe 520 is located directly above bolts 200; bolt protector 100 covers the portion of bolt 200 that extends outside of bracket 510. The specific structure of the bolt protection cover 100 refers to the above embodiments, and since the bolt protection cover 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The compressor cabin 400 includes a surrounding wall (not shown) and a top cover (not shown) besides the base plate 410, the surrounding wall is connected to the edge of the base plate 410, the top cover covers the top end of the surrounding wall, the base plate 410, the surrounding wall and the top cover form an installation space, the compressor 500 is installed in the installation space, and meanwhile, the cooling fan 600 is further installed in the installation space. The bottom end of the compressor 500 may be provided with a plurality of brackets 510 along the circumferential direction to ensure the firmness of fixation. Since the bracket 510 is spaced apart from the bottom plate 410, a support 420 may be formed on the base, and the bracket 510 may be pressed against the support 420. A mounting hole is formed in the bracket 510, a through hole is formed in the support 420, the bolt 200 can be assembled from bottom to top, sequentially penetrates through the through hole and the mounting hole, and then the bracket 510 is fixed on the chassis 410 through the matching of the nut 300; the bolt 200 may also be assembled from top to bottom, sequentially passing through the mounting hole and the through hole, and then fixing the bracket 510 on the chassis 410 by the cooperation of the nut 300 or the screw thread provided on the inner wall of the through hole.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bolt protection cap, comprising:

the cover comprises a cover body, wherein an accommodating cavity is formed in the cover body, and an opening is formed in the surface of the cover body by the accommodating cavity;

the clamping pieces are arranged along the circumferential direction of the side wall of the accommodating cavity and are positioned at the edge of the opening.

2. The bolt protection cover of claim 1, wherein the locking member is a plurality of locking pieces, and the locking pieces are arranged along the sidewall of the receiving cavity in a pairwise opposite manner.

3. The bolt protective cover of claim 1, wherein the clip is a clip strip that extends circumferentially around and encloses a sidewall of the receiving cavity.

4. The bolt protection cover of claim 2, wherein the thickness of the protrusion of the latch from the opening to the inside of the receiving cavity is gradually increased.

5. The bolt protection cover of claim 1, wherein the cover comprises:

the first cover part is internally provided with a first cavity;

the second portion that closes, the inside of second portion that closes is equipped with the second cavity, first portion that closes is located the one end that the second portion that closes, the second cavity with first cavity intercommunication is in order to form the holding chamber, just the second cavity is in the second portion that closes keeps away from the one end that the first portion that closes is formed with the opening.

6. The bolt protection cover of claim 5, wherein the first cavity and the second cavity are each cylindrical.

7. The bolt protection cover of claim 1, further comprising:

and the vibration damping pad is attached to the inner wall of the accommodating cavity.

8. The bolt protection cover of claim 7, wherein the damping pad is attached to a bottom wall of the receiving cavity away from the opening.

9. The bolt protection cover of claim 8, wherein the damping pad is made of a sponge material;

and/or the cover body is made of plastic materials.

10. An outdoor unit of an air conditioner, comprising:

a compressor nacelle including a base pan;

the compressor is arranged on the base plate, a support is arranged at the bottom end of the compressor, and a pipeline is connected to the compressor;

the bolt penetrates through the chassis and the bracket so as to fix the compressor on the chassis, wherein the downward bend of the pipeline is positioned right above the bolt;

the bolt protection cap of any one of claims 1 to 9, covering a portion of the bolt that protrudes outside the bracket.