Sewage discharge structure of sewage suction truck

Abstract

The utility model belongs to the technical field of pollution discharge structure, concretely relates to a kind of sewage suction truck pollution discharge structure, comprising: counter locking cone sleeve, the inner and outer circumferential wall of counter locking cone sleeve is conical, counter locking cone sleeve big end portion is provided with flange four;Counter locking pipe head, the inner circumferential wall of counter locking pipe head is provided with taper groove, counter locking cone sleeve conical part is buckled in taper groove, counter locking pipe head small end portion is sealingly provided with bellow, counter locking pipe head big end portion is provided with flange five;Fixed component, fixed component is set on flange four and flange five, for connecting and fixing counter locking cone sleeve and counter locking pipe head;Sealing element, sealing element is set at the conical part of counter locking cone sleeve and the taper groove of counter locking pipe head, for solving the problem that the connectivity of buckling sleeve and pollution discharge pipe is not good in the pollution discharge structure of existing sewage suction truck, leading to leakage in the process of pollution discharge due to the influence of relatively large pressure of pollution discharge port.

Description

Technical Field

[0001] This utility model belongs to the field of sewage discharge structure technology, specifically relating to a sewage discharge structure for a vacuum truck. Background Technology

[0002] A vacuum truck is a special sanitation vehicle and special operation vehicle used for collecting, transporting and treating liquid and semi-liquid sludge, sewage and septic tank waste. It is commonly known as a "sewage truck" and is an indispensable environmental protection equipment in modern urban and industrial environments. Vacuum trucks can self-suction and self-discharge, work quickly, have a large capacity, and are convenient to transport. They are suitable for collecting and transporting liquid substances such as feces, mud, and crude oil.

[0003] The existing sewage suction truck has a tank cover that can be flipped and snapped shut at the rear. A sewage pipe is installed at the bottom of the tank cover, and a valve is installed at the port of the sewage pipe. A connecting sleeve is installed at the end of the valve. The connecting sleeve is used to connect the bellows. However, in the existing sewage suction truck sewage discharge structure, the connection between the connecting sleeve and the bellows is not good. As a result, during the sewage discharge process, due to the large pressure at the sewage outlet, the connection is prone to leakage. Utility Model Content

[0004] Based on the problems mentioned in the background art above, this utility model provides a sewage discharge structure for a vacuum truck, which solves the problem that the connection between the buckle and the sewage pipe in the existing sewage discharge structure of the vacuum truck is not good, which leads to leakage at the connection point during the sewage discharge process due to the large pressure of the sewage outlet.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A sewage discharge structure for a vacuum truck includes:

[0007] The snap-fit ​​cone sleeve has both its inner and outer peripheral walls in a conical shape, and a flange is provided at the large end of the snap-fit ​​cone sleeve.

[0008] The coupling pipe head has a tapered groove on its inner circumferential wall, the tapered part of the coupling cone sleeve is engaged in the tapered groove, the small end of the coupling pipe head is sealed with a bellows, and the large end of the coupling pipe head is provided with a flange.

[0009] A fixing component is provided on flange four and flange five, and is used to connect and fix the snap-fit ​​cone sleeve and the snap-fit ​​tube head;

[0010] A sealing element is disposed at the contact point between the tapered portion of the snap-fit ​​sleeve and the tapered groove of the snap-fit ​​tube head.

[0011] Based on the above technical solution, the present invention has made the following improvements:

[0012] Furthermore, the fixing component includes studs and locking holes. Multiple studs and locking holes are provided in the same quantity. Each stud is respectively located on the side wall at one of the four corners of flange four. Each locking hole is respectively located at one of the four corners of flange five. One end of each stud is inserted into the corresponding locking hole and a nut is screwed in. One end of the nut is tightly attached to one side wall of flange five.

[0013] Furthermore, the sealing element includes a rubber sleeve one, a rubber sleeve two, a rubber ring, and a rubber sleeve three. The rubber sleeve one is bonded to a groove on the outer conical wall of the snap-fit ​​cone sleeve, the rubber sleeve two is bonded to a groove on the inner conical wall of the snap-fit ​​cone sleeve, the rubber ring is bonded to the bottom of the conical groove, and the rubber sleeve three is bonded to a groove on the long conical surface of the conical groove.

[0014] Furthermore, the radial dimension of the outer conical wall of the first rubber sleeve is slightly larger than the radial dimension of the outer conical wall of the interlocking conical sleeve, the radial dimension of the inner conical wall of the second rubber sleeve is slightly smaller than the radial dimension of the inner conical wall of the interlocking conical sleeve, and the radial dimension of the inner conical wall of the third rubber sleeve is slightly smaller than the radial dimension of the long conical surface of the conical groove.

[0015] Furthermore, the inner cavity of the snap-fit ​​cone sleeve and the inner cavity of the snap-fit ​​pipe head are smoothly connected, and multiple mounting holes are arrayed on the flange four.

[0016] Furthermore, the connection between the stud and flange four is made using a tapered chamfer transition.

[0017] The beneficial effects of this utility model are:

[0018] 1. By using the combination of the snap-fit ​​cone sleeve, snap-fit ​​pipe head, bellows, and fixing components, the snap-fit ​​cone sleeve is assembled onto the valve flange three without being removed during use. Then, the snap-fit ​​pipe head is snapped onto the snap-fit ​​cone sleeve, and the fixing components are used for connection and fixation. This allows the bellows to be connected and assembled with the valve after being combined with the snap-fit ​​cone sleeve and snap-fit ​​pipe head.

[0019] 2. By setting both the inner and outer peripheral walls of the snap-fit ​​cone sleeve to be conical, and setting a conical groove on the inner peripheral wall of the snap-fit ​​pipe head, along with a sealing element, when the snap-fit ​​pipe head is snapped onto the snap-fit ​​cone sleeve, the inner and outer conical walls of the snap-fit ​​cone sleeve, and the short and long conical surfaces of the conical groove can compress the sealing element, so that the sealing element fits tightly in the conical part of the snap-fit ​​cone sleeve and the conical groove of the snap-fit ​​pipe head, increasing the sealing performance of the connection between the snap-fit ​​cone sleeve and the snap-fit ​​pipe head, and preventing leakage at the connection during sewage discharge. Attached Figure Description

[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is an assembly diagram of the sewage discharge structure of a vacuum truck according to this utility model;

[0022] Figure 2 This is a structural diagram of the sewage discharge structure of a vacuum truck according to this utility model;

[0023] Figure 3 This is an exploded view of the sewage discharge structure of a vacuum truck according to this utility model;

[0024] Figure 4 This is a cross-sectional view of the sewage discharge structure of a vacuum truck according to this utility model.

[0025] The attached diagram is labeled as follows:

[0026] 301. Reciprocating tapered sleeve; 302. Flange 4; 303. Mounting hole; 304. Rubber sleeve 1; 305. Rubber sleeve 2; 401. Reciprocating pipe end; 402. Flange 5; 403. Bellows; 404. Tapered groove; 405. Rubber ring; 406. Rubber sleeve 3; 501. Stud; 502. Clip hole; 503. Nut. Detailed Implementation

[0027] like Figures 1-4 As shown, a sewage discharge structure for a vacuum truck includes:

[0028] The conical sleeve 301 has a flange 302 at its large end, and multiple mounting holes 303 are arranged in an array on the flange 302. In use, the valve flange 2 is attached to the sewage pipe flange 1 and fixed by bolts, so that the valve is assembled at the end of the sewage pipe. Then, the flange 302 of the conical sleeve 301 is attached to the valve flange 3, and the mounting holes 303 on the flange 3 and flange 4 302 are aligned. Then, the bolts are inserted into the mounting holes 303, and the nuts are screwed into the insertion end of the bolts, so that the nuts are tightly attached to the side wall of flange 4 302, so that the conical sleeve 301 is assembled at the end of the valve without disassembly.

[0029] The inner and outer peripheral walls of the snap-fit ​​sleeve 301 are both tapered, making one end of the snap-fit ​​sleeve 301 tapered. The snap-fit ​​pipe head 401 has a flange 402 at its large end. Fixing components are provided on the flange 302 and the flange 402, and include studs 501 and locking holes 502. Multiple studs 501 and locking holes 502 are provided in equal numbers, and each stud 501 is located at one of the four corners of the flange 302. On the side wall, each locking hole 502 is set at the four corners of flange five 402. After the snap-fit ​​cone sleeve 301 is assembled on the end of the valve, each locking hole 502 on flange five 402 is inserted into the corresponding stud 501 on flange four 302. Then, a nut 503 is screwed into each stud 501. One end of the nut 503 is tightly attached to one side wall of flange five 402, thus completing the connection and assembly of snap-fit ​​cone sleeve 301 and snap-fit ​​pipe head 401.

[0030] The inner circumferential wall of the coupling head 401 is provided with a tapered groove 404. When the coupling tapered sleeve 301 and the coupling head 401 are connected and assembled together, the tapered part of the coupling tapered sleeve 301 is engaged in the tapered groove 404, so that the inner cavity of the coupling tapered sleeve 301 and the inner cavity of the coupling head 401 are smoothly connected. The small end of the coupling head 401 is sealed with a bellows 403, so that the bellows 403 can be connected and assembled with the valve after the coupling tapered sleeve 301 and the coupling head 401 are combined.

[0031] The sealing element is located at the contact point between the tapered portion of the snap-fit ​​sleeve 301 and the tapered groove 404 of the snap-fit ​​tube head 401. The sealing element includes a first rubber sleeve 304, a second rubber sleeve 305, a rubber ring 405, and a third rubber sleeve 406. The first rubber sleeve 304 is bonded to a groove on the outer tapered wall of the snap-fit ​​sleeve 301. The radial dimension of the outer tapered wall of the first rubber sleeve 304 is slightly larger than that of the outer tapered wall of the snap-fit ​​sleeve 301, causing the outer tapered wall of the first rubber sleeve 304 to protrude beyond the outer tapered wall of the snap-fit ​​sleeve 301. The second rubber sleeve 305 is bonded to... The inner conical wall of the snap-fit ​​cone sleeve 301 has a groove, and the radial dimension of the inner conical wall of the second rubber sleeve 305 is slightly smaller than that of the inner conical wall of the snap-fit ​​cone sleeve 301, so that the inner conical wall of the second rubber sleeve 305 protrudes outside the inner conical wall of the snap-fit ​​cone sleeve 301; the rubber ring 405 is bonded to the bottom of the conical groove 404, and the third rubber sleeve 406 is bonded to the groove of the long conical surface of the conical groove 404, and the radial dimension of the inner conical wall of the third rubber sleeve 406 is slightly smaller than that of the long conical surface of the conical groove 404, so that the inner conical wall of the third rubber sleeve 406 protrudes outside the long conical surface of the conical groove 404;

[0032] When the snap-fit ​​cone sleeve 301 and the snap-fit ​​pipe head 401 are connected and assembled together, and the conical part of the snap-fit ​​cone sleeve 301 is snapped into the conical groove 404, the outer conical wall of the snap-fit ​​cone sleeve 301 is pressed against the inner conical wall of the rubber sleeve 306, the long conical wall of the conical groove 404 is pressed against the outer conical wall of the rubber sleeve 1 304, the short conical wall of the conical groove 404 is pressed against the inner conical wall of the rubber sleeve 2 305, and the conical end of the snap-fit ​​cone sleeve 301 is pressed against the rubber ring 405. Thus, the rubber sleeve 1 304, the rubber sleeve 2 305, the rubber ring 405, and the rubber sleeve 3 406 are tightly fitted in the contact area between the conical part of the snap-fit ​​cone sleeve 301 and the conical groove 404 of the snap-fit ​​pipe head 401, thereby increasing the sealing performance of the connection between the snap-fit ​​cone sleeve 301 and the snap-fit ​​pipe head 401 and preventing leakage at the connection during sewage discharge.

[0033] The connection between stud 501 and flange 4 302 is made of tapered chamfered transition, which reduces stress concentration at the connection, enhances the strength of the connection between stud 501 and flange 4 302, and avoids breakage.

[0034] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A sewage discharge structure for a vacuum truck, characterized in that: include: The snap-on cone sleeve (301) has a tapered inner and outer circumferential wall, and a flange (302) is provided at the large end of the snap-on cone sleeve (301). The interlocking pipe head (401) has a conical groove (404) on its inner peripheral wall, and the conical part of the interlocking conical sleeve (301) is fastened into the conical groove (404). The small end of the interlocking pipe head (401) is sealed with a bellows (403), and the large end of the interlocking pipe head (401) is provided with a flange (402). A fixing component is provided on flange four (302) and flange five (402) for connecting and fixing the snap cone sleeve (301) and the snap tube head (401); A sealing element is disposed at the contact point between the tapered portion of the snap-fit ​​sleeve (301) and the tapered groove (404) of the snap-fit ​​tube head (401).

2. The sewage discharge structure of a vacuum truck according to claim 1, characterized in that: The fixing component includes studs (501) and locking holes (502). There are multiple studs (501) and locking holes (502) of the same number. Each stud (501) is set on the side wall at the four corners of flange four (302). Each locking hole (502) is set at the four corners of flange five (402). One end of each stud (501) is inserted into the corresponding locking hole (502) and screwed with a nut (503). One end of the nut (503) is tightly attached to one side wall of flange five (402).

3. The sewage discharge structure of a vacuum truck according to claim 1, characterized in that: The sealing element includes rubber sleeve one (304), rubber sleeve two (305), rubber ring (405) and rubber sleeve three (406). Rubber sleeve one (304) is bonded to the groove on the outer conical wall of the snap-fit ​​cone sleeve (301). Rubber sleeve two (305) is bonded to the groove on the inner conical wall of the snap-fit ​​cone sleeve (301). Rubber ring (405) is bonded to the bottom of the conical groove (404). Rubber sleeve three (406) is bonded to the groove on the long conical surface of the conical groove (404).

4. The sewage discharge structure of a vacuum truck according to claim 3, characterized in that: The radial dimension of the outer conical wall of the first rubber sleeve (304) is slightly larger than the radial dimension of the outer conical wall of the snap-on conical sleeve (301), the radial dimension of the inner conical wall of the second rubber sleeve (305) is slightly smaller than the radial dimension of the inner conical wall of the snap-on conical sleeve (301), and the radial dimension of the inner conical wall of the third rubber sleeve (406) is slightly smaller than the radial dimension of the long conical surface of the conical groove (404).

5. The sewage discharge structure of a vacuum truck according to claim 1, characterized in that: The inner cavity of the snap-fit ​​cone sleeve (301) is smoothly connected to the inner cavity of the snap-fit ​​pipe head (401), and multiple mounting holes (303) are arrayed on the flange four (302).

6. The sewage discharge structure of a vacuum truck according to claim 2, characterized in that: The connection between the stud (501) and the flange (302) is made by a tapered chamfer transition.

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