CN211008833U

CN211008833U - Exhaust cover with dustproof structure

Info

Publication number: CN211008833U
Application number: CN201921875127.2U
Authority: CN
Inventors: 王峰
Original assignee: Changzhou Jintan Jiuchun Hardware Rubber Plastic Products Co ltd
Current assignee: Changzhou Jintan Jiuchun Hardware Rubber Plastic Products Co ltd
Priority date: 2019-11-02
Filing date: 2019-11-02
Publication date: 2020-07-14
Anticipated expiration: 2029-11-02

Abstract

The utility model discloses an exhaust cover with dustproof construction belongs to the technical field of exhaust spare part, and its technical scheme main points are, including the device body, the device body includes swivel cover and hollow tube, the swivel cover is fixed mutually with the one end of hollow tube, the swivel cover is close to one side center department of hollow tube and has seted up first through-hole, first through-hole department is provided with the filter screen, one side that the swivel cover is kept away from the hollow tube has seted up the second through-hole, second through-hole department fixedly connected with second hollow tube, the inside opening assembly that is provided with of swivel cover; the opening assembly comprises two guide rods, two blocking plates and a driving assembly, the interior of the rotary cover is of a hollow structure, and one end of each guide rod is fixed on the inner wall of the rotary cover. The utility model discloses have the effect that improves dustproof ability.

Description

Exhaust cover with dustproof structure

Technical Field

The utility model belongs to the technical field of the technique of exhaust spare part and specifically relates to an exhaust lid with dustproof construction is related to.

Background

The exhaust cover is a fitting in an automobile power system, and is connected with a pipeline. The equipment exhausts through the exhaust pipe.

However, the through holes of the existing exhaust cover are always in an unclosed state, and dust and other air impurities can enter the inside of the exhaust cover. The existing exhaust cover has low dustproof capability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exhaust cover with dustproof construction has the effect that improves dustproof ability.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an exhaust cover with a dustproof structure comprises a device body, wherein the device body comprises a rotary cover and a hollow pipe, the rotary cover is fixed with one end of the hollow pipe, a first through hole is formed in the center of one side, close to the hollow pipe, of the rotary cover, a filter screen is arranged at the first through hole, a second through hole is formed in one side, far away from the hollow pipe, of the rotary cover, a second hollow pipe is fixedly connected to the second through hole, and an opening assembly is arranged inside the rotary cover;

the opening assembly comprises two guide rods, two blocking plates and a driving assembly, the rotating cover is of a hollow structure, one end of each guide rod is fixed to the inner wall of the rotating cover, the blocking plates are slidably sleeved on the outer peripheral surfaces of the guide rods, the driving assembly drives the blocking plates to move along the guide rods at the positions of the linear motion, the blocking plates are close to the second hollow tubes, one ends of the hollow tubes are attached to each other and are completely shielded by the blocking plates, and the central axes of the guide rods are collinear and are intersected with the central axes of the second through holes at the positions of the linear motion.

Through adopting above-mentioned technical scheme, drive assembly drives the barrier plate and moves along guide arm place linear direction, and control drive assembly that can think controls the closure and opening of second through-hole, further improvement the dirt-proof ability of exhaust cover.

The utility model discloses set up further to, the drive assembly includes two first dead levers, two first conical gear, two screws, two spiral shell pieces and second conical gear, the one end of first dead lever is fixed mutually with the inner wall of rotatory lid, first conical gear rotates the cover and establishes in the outer peripheral face of first dead lever, the one end of screw rod is fixed in one side central point department that first conical gear kept away from the first dead lever, spiral shell piece and stop plate keep away from one side of hollow tube mutually fixed, the screw rod with spiral shell piece quantity and position correspond, and the screw rod reaches spiral shell piece threaded connection;

the rotary cover is far away from one side of the hollow tube and is provided with a circular ring-shaped through hole, the second conical gear is matched with the circular ring-shaped through hole, first sliding grooves are formed in two sides of the inner wall of the circular ring-shaped through hole, the second conical gear is connected with the first sliding grooves in a sliding mode, and the second conical gear is meshed with the first conical gears.

Through adopting above-mentioned technical scheme, operating personnel rotates the second conical gear at the inside ring shape through-hole, and second conical gear drives first conical gear and rotates around first dead lever. Meanwhile, the first bevel gear drives the screw to rotate. Because the screw rod is in threaded connection with the screw block, the screw block is fixed with the blocking plate, and the blocking plate is limited by the guide rod, the blocking plate can only move along the linear direction of the guide rod. The screw blocks cannot rotate together with the screw. The screw rod rotates to drive the screw block to move along the linear direction of the screw rod, and the screw block drives the blocking plate to move. The degree to which the second through hole is shut off is changed by these steps.

The utility model discloses further set up to, second conical gear keeps away from one side fixedly connected with swivel becket of hollow tube, the swivel becket is kept away from anti-skidding line has been seted up to one side of hollow tube.

By adopting the technical scheme, the anti-skid lines are processed on the rotating ring. When operating personnel and swivel becket contact, increased the frictional force between operating personnel's finger and the swivel becket, make operating personnel easily rotate the swivel becket, and then rotate second conical gear.

The utility model discloses further set up to, the hollow tube is provided with the clamp ring in the fixed of first through-hole department, the clamp ring with the filter screen is laminated mutually.

Through adopting above-mentioned technical scheme, the clamp ring makes the filter screen hug closely in first through-hole department, and the filter screen is difficult for droing from first through-hole department, improves the filter capacity of exhaust lid.

The utility model discloses further set up to, the screw rod is close to the one end fixedly connected with stopper of second through-hole.

Through adopting above-mentioned technical scheme, the stopper is avoided screw rod and spiral shell piece to break away from the contact.

The utility model discloses further set up to, the outer peripheral face winding of guide arm has the spring, the one end of spring with guide arm fixed connection, the other end of spring with barrier plate fixed connection.

Through adopting above-mentioned technical scheme, under the effect of not receiving the external force, the barrier plate receives the effect of the elastic recovery power of spring, and the spring makes two barrier plates contact. The blocking plate blocks the second through hole. The air tightness of the inside of the exhaust cover is ensured, and the opportunity that dust enters the inside of the exhaust cover through the second through hole is reduced.

The utility model discloses further set up to, two the relative one side of barrier plate all is provided with the rubber protection layer.

Through adopting above-mentioned technical scheme, when two stop plates all received the spring total, the rubber protective layer avoided contacting between two stop plates.

To sum up, the utility model discloses following beneficial effect has:

1. the device body, the first through hole, the filter screen, the opening assembly, the second through hole and the like can facilitate an operator to open the second through hole when needed; when the exhaust cover is not operated, the second through hole is closed, so that impurities such as dust and the like are prevented from entering the device body, and the dustproof capacity of the exhaust cover is improved;

2. through the spring, the guide rod, the blocking plate and the like, the blocking plate can be prevented from moving along the linear direction of the guide rod under the condition that the blocking plate is not subjected to external force.

Drawings

Fig. 1 is an overall schematic diagram of the present embodiment.

Fig. 2 is a schematic view of the half-section structure of fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure, 1, an apparatus body; 2. a rotating cover; 21. a hollow tube; 22. a first through hole; 3. a filter screen; 23. a second through hole; 231. a second hollow tube; 4. opening the assembly; 41. a guide bar; 42. a blocking plate; 5. a drive assembly; 51. a first fixing lever; 52. a first conical gear; 53. a screw; 54. a screw block; 55. a second conical gear; 6. a circular through hole; 61. a first chute; 7. a rotating ring; 71. anti-skid lines; 221. a compression ring; 8. a limiting block; 9. a spring; 10. and a rubber protective layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 and 2, the utility model discloses an exhaust cover with dustproof construction, including device body 1, device body 1 includes rotatory lid 2 and hollow tube 21. One end of the hollow tube 21 is welded with the rotary cover 2. For the purpose of reducing the ingress of dust into the interior of the hollow tube 21. A first through hole 22 is formed in one side, close to the hollow tube 21, of the rotary cover 2, and the filter screen 3 is placed on glue inside the first through hole 22. The filter net 3 is located inside the first through hole 22. In order to fix the filter screen 3 more firmly inside the first through hole 22, a compression ring 221 is glued to the hollow tube 21 at the first through hole 22, and the filter screen 3 is located between the compression ring 221 and the inner wall of the hollow tube 21. The second through hole 23 has been seted up to one side that the hollow tube 21 was kept away from to rotatory lid 2, and second through hole 23 department fixedly connected with second hollow tube 231, second hollow tube 231 are located the inside of rotatory lid 2. The inside of the rotary cover 2 is of a hollow structure. In order to adjust the degree to which the second through hole 23 is shielded, the opening unit 4 is provided inside the rotary cover 2.

Referring to fig. 2 and 3, the opening assembly 4 includes two guide rods 41, two blocking plates 42 and a driving assembly 5, wherein one end of each guide rod 41 is fixed on the inner wall of the rotating cover 2, and the blocking plates 42 are slidably sleeved on the outer peripheral surfaces of the guide rods 41. The driving assembly 5 is located inside the rotary cover 2 and drives the blocking plate 42 to move along the linear direction of the guide rod 41. The straight lines of the central axes of the two guide rods 41 are collinear and intersect the straight line of the central axis of the second through hole 23. The directions of movement of the two blocking plates 42 are illustrated as relative movements.

Referring to fig. 2 and 3, the driving assembly 5 includes a first fixing rod 51, two second conical gears 55, two screws 53, two screw blocks 54, and a second conical gear 55. The screw 54 is fixedly connected with one end of the blocking plate 42 far away from the second hollow tube 231. To move the screw block 54. One end of the first fixing rod 51 is welded with the inner wall of the rotating cover 2, the first conical gear 52 is rotatably sleeved on the outer peripheral surface of the first fixing rod 51, one end of the first fixing rod 51 extends into the first conical gear 52, and the first conical gear 52 rotates around the first fixing rod. One end of the screw 53 is welded to a side of the first conical gear 52 away from the first fixing rod 51. The screw 53 passes through the screw block 54, and the screw 53 is threadedly connected with the screw block 54. When the first conical gear 52 rotates around the first fixing rod 51, the first conical gear 52 drives the screw 53 to rotate, and since the screw 54 cannot rotate along with the screw 53, when the screw 53 rotates, the screw 53 drives the screw 54 to move along the linear direction of the screw 53. The screw block 54 drives the stop plate to move. The purpose of opening or closing the second hollow tube 231 is achieved.

Referring to fig. 3, in order to prevent the screw 54 from being separated from the screw 53, a stopper 8 is welded to one end of the screw 53 near the second hollow tube 231.

Referring to fig. 3, in order to rotate the first conical gear 52 around the first fixing lever 51. One side of the rotating cover 2, which is far away from the hollow tube 21, is provided with a circular ring-shaped through hole 6, the cross section of the second conical gear 55 is circular, and the shape of the second conical gear 55 corresponds to that of the circular ring-shaped through hole 6. The second conical gear 55 is located inside the circular through hole 6, the first sliding grooves 61 are formed in two sides of the inner wall of the circular through hole 6, and the second conical gear 55 is connected with the first sliding grooves 61 in a sliding mode. Part of the second conical gear 55 extends inside the rotary cap 2 and the second conical gear 55 is intermeshed with the first conical gear 52.

Referring to fig. 3, in order to rotate the second bevel gear 55 more quickly, easily and laborsavingly, a rotating ring 7 is welded on one side of the second bevel gear 55 away from the hollow tube 21, and anti-skid grains 71 are formed on one side of the rotating ring 7 away from the hollow tube 21. When an operator directly acts on the rotating ring 7, the friction force between the operator and the contact surface of the rotating ring 7 is increased due to the anti-slip lines 71, so that the operator can conveniently rotate the rotating ring 7.

Referring to fig. 3, in order to prevent the blocking plate 42 from moving linearly and squarely along the guide rod 41 when the blocking plate 42 is not subjected to an external force, the outer circumferential surface of the guide rod 41 is wound with a spring 9, one end of the spring 9 is fixed to the outer circumferential surface of the guide rod 41, and the other end of the spring 9 is fixed to one end of the blocking plate 42. When the two blocking plates 42 are in abutment, the spring 9 is in a compressed state. Due to the elastic restoring force of the spring 9, the blocking plate 42 does not move in the linear direction of the guide rod 41 without receiving an external force. In order to avoid the two blocking plates 42 from touching each other, a rubber protective layer 10 is bonded to each glue contacting the two blocking plates 42.

The implementation principle of the above embodiment is as follows: when the operator needs to exhaust through the exhaust cover, the operator needs to make the second through hole 23 unobstructed. When an operator rotates the rotating ring 7, the rotating ring 7 drives the second conical gear 55 to rotate, the second conical gear 55 rotates in situ in the circular groove, the second conical gear 55 drives the first conical gear 52 to rotate, and the first conical gear 52 rotates around the first fixing rod 51. The first bevel gear 52 drives the screw 53 to rotate, the screw 53 drives the screw 54 to move along the linear direction of the screw 53, and the screw 54 drives the blocking plate 42 to move along the linear direction of the guide rod 41. When the two blocking plates 42 move along the linear direction of the guide rod 41, the blocking plates 42 are separated, and the second through hole 23 is not completely shielded.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an exhaust cover with dustproof construction, includes device body (1), device body (1) is including rotatory lid (2) and hollow tube (21), rotatory lid (2) with the one end of hollow tube (21) is fixed mutually, rotatory lid (2) are close to one side center department of hollow tube (21) has seted up first through-hole (22), first through-hole (22) department is provided with filter screen (3), rotatory lid (2) are kept away from second through-hole (23), its characterized in that have been seted up to one side of hollow tube (21): a second hollow pipe (231) is fixedly connected to the second through hole (23), and an opening assembly (4) is arranged in the rotary cover (2);

opening subassembly (4) and including two guide arms (41), two barrier plates (42) and drive assembly (5), rotatory lid (2) are inside to be hollow structure, guide arm (41) one end is fixed the inner wall of rotatory lid (2), barrier plate (42) slip cover is established the outer peripheral face of guide arm (41), drive assembly (5) drive barrier plate (42) along guide arm (41) self place rectilinear motion, barrier plate (42) with second hollow tube (231) are close to the one end of hollow tube (21) is laminated mutually, two barrier plate (42) shield completely second through-hole (23), two the axis collineation of guide arm (41) and with the center pin place straight line of second through-hole (23) is crossing.

2. The exhaust cover with a dustproof structure according to claim 1, wherein: the driving assembly (5) comprises two first fixing rods (51), two first conical gears (52), two screw rods (53), two screw blocks (54) and a second conical gear (55), one end of each first fixing rod (51) is fixed to the inner wall of the rotary cover (2), the first conical gears (52) are rotatably sleeved on the peripheral surfaces of the first fixing rods (51), one ends of the screw rods (53) are fixed to the central point of one side, far away from the first fixing rods (51), of the first conical gears (52), the screw blocks (54) are fixed to one side, far away from the hollow tube (21), of the blocking plate (42), the number and the positions of the screw rods (53) correspond to those of the screw blocks (54), and the screw rods (53) are in threaded connection with the screw blocks (54);

rotatory lid (2) are kept away from circular ring shape through-hole (6) have been seted up to one side of hollow tube (21), second conical gear (55) with circular ring shape through-hole (6) looks adaptation, first spout (61) have all been seted up to circular ring shape through-hole (6) inner wall both sides, second conical gear (55) with first spout (61) sliding connection, just second conical gear (55) and two first conical gear (52) intermeshing.

3. The exhaust cover with a dustproof structure according to claim 2, wherein: one side, far away from the hollow tube (21), of the second conical gear (55) is fixedly connected with a rotating ring (7), and anti-skidding lines (71) are arranged on one side, far away from the hollow tube (21), of the rotating ring (7).

4. The exhaust cover with a dustproof structure according to claim 1, wherein: the hollow pipe (21) is fixedly provided with a clamp ring (211) at the first through hole (22), and the clamp ring (211) is attached to the filter screen (3).

5. The exhaust cover with a dustproof structure according to claim 2, wherein: and one end of the screw rod (53) close to the second through hole (23) is fixedly connected with a limiting block (8).

6. The exhaust cover with a dustproof structure according to claim 1, wherein: the outer peripheral surface of the guide rod (41) is wound with a spring (9), one end of the spring (9) is fixedly connected with the guide rod (41), and the other end of the spring (9) is fixedly connected with the blocking plate (42).

7. The exhaust cover with a dustproof structure according to claim 1, wherein: and rubber protective layers (10) are arranged on the opposite sides of the two blocking plates (42).