CN211144623U

CN211144623U - Staggered plug-in connector structure of forklift exhaust pipe

Info

Publication number: CN211144623U
Application number: CN201921611525.3U
Authority: CN
Inventors: 袁学红; 陈卫平; 李曼利; 沈先明; 牛保
Original assignee: Hefei Hean Machinery Manufacturing Co Ltd
Current assignee: Hefei Hean Machinery Manufacturing Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-31
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a fork truck blast pipe alternating expression plug-in connection structure, including the body, it has a plurality of notches to distribute on the circumference lateral wall of body grafting end port department, and every notch thereof comprises two dislocation and the mutually corresponding complex groove respectively, and it is groove one and groove two respectively, the axial setting along the body is two respectively in groove one and groove, groove one is the open slot, and its front end opening is located the port department of body, the preceding, the rear end of groove two all have the body section, the front end of groove two and the tail end of groove one clearance fit on same circumferencial direction, groove one is the same with the width of groove two, and the crossing department disconnection of groove one outer side arm and groove two inside walls. The utility model has the advantages of reasonable design, with original straight notch, changed into the notch of alternating expression, for original straight notch, have one section fixed seal segment, increase sealed effect for sealing performance is better, installation and operation requirement when satisfying the grafting.

Description

Staggered plug-in connector structure of forklift exhaust pipe

The technical field is as follows:

the utility model relates to a fork truck blast pipe grafting technical field mainly relates to a fork truck blast pipe alternating expression plug-in connection structure.

Background art:

present fork truck blast pipe is pegged graft, what adopt is four notches of circumference equipartition, for example: when a straight pipe with the outer diameter of 38mm is connected with another pipeline with the inner diameter of 38mm, the straight pipe needs to be inserted into the pipeline and then clamped outside the pipeline by a U-shaped clamp, the principle is that a contraction space is formed by utilizing an opened notch, and when the clamp is screwed down, the clamp compresses a pipe orifice to enable the pipe orifice to compress the straight pipe matched with the clamp, so that the connection and the fixation between the pipelines are realized. However, from the feedback on the current market, the structure has poor sealing effect, frequently blackens parts, has poor influence and more complaints, and therefore the structure of the splicing part needs to be improved.

The utility model has the following contents:

the utility model discloses the purpose is exactly in order to compensate prior art's defect, provides a fork truck blast pipe alternating expression plug-in connection structure, with original straight notch, has changed into the notch of alternating expression, for original straight notch, has one section fixed seal section, increases sealed effect for sealing performance is better, installation and operation requirement when satisfying the grafting.

The utility model discloses a realize through following technical scheme:

the utility model provides a fork truck blast pipe alternating expression plug joint structure, including the body, its characterized in that: the utility model discloses a pipe body, including body, pipe body, groove one, groove two, the axial setting of body is followed respectively to the groove one, the groove one is the open slot, and its front end opening is located the port department of body, the preceding, the rear end of groove two all have the body section, the front end of groove two and the tail end of groove one are clearance fit on same circumferencial direction, the width of groove one and groove two is the same, and the crossing department disconnection of groove one outer side arm and groove two inside walls.

Four notches are uniformly distributed on the circumferential side wall at the end opening of the pipe body insertion connection.

The length of the first groove is shorter than that of the second groove and is about 1/2 of the length of the second groove.

And the section of the pipe body corresponding to the front end of the second groove is matched with the section of the pipe body corresponding to the rear end of the first groove in a guiding manner.

And the front end of the second groove corresponds to the corner of the section of the pipe body corresponding to the rear end of the first groove, and an arc guide angle is adopted for transition.

The inner side of the second groove is correspondingly matched with the outer side of the first groove, a small allowance gap is reserved between the inner side of the second groove and the outer side of the first groove, and the gap value is about 0.2 mm.

And the gap value between the front end of the second groove and the tail end of the first groove in the same circumferential direction is about 0.1 mm.

The principle is as follows: through the design of the first groove and the second groove of the staggered type, when the clamp is used for clamping, the pipe body at the front end of the second groove can be matched with the groove, and when the clamp is clamped, the section of the matched groove can be sealed to a certain extent.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, with original straight notch, changed into the notch of alternating expression, for original straight notch, have one section fixed seal segment, increase sealed effect for sealing performance is better, installation and operation requirement when satisfying the grafting.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion of the structure of fig. 1.

Fig. 3 is an enlarged view of a portion of the structure at I in fig. 2.

The specific implementation mode is as follows:

see the drawings.

The utility model provides a fork truck blast pipe staggered form plug-in connection structure, including body 1, it has a plurality of notches to distribute on the circumference lateral wall of 1 grafting port department of body, and every notch thereof is just corresponded complex groove by two dislocations respectively and is constituteed, and it is groove one 2 and groove two 3 respectively, the axial setting along the body is respectively followed to groove one 2 and groove two 3, groove one 2 is the open slot, and its front end opening is located the port department of body, preceding, the rear end of groove two 3 all have the body section, the front end of groove two 3 and the tail end of groove one 2 clearance fit on same circumferencial direction, groove one 2 is the same with the width of groove two 3, and the crossing department disconnection of groove one 2 lateral arm and groove two 3 inside walls.

Four notches are uniformly distributed on the circumferential side wall at the insertion end port of the tube body 1.

The length of the first groove 2 is shorter than that of the second groove 3 and is about 1/2 of the length of the second groove 3.

And the pipe section 4 corresponding to the front end of the second groove 3 is matched with the pipe section 5 corresponding to the rear end of the first groove 2 in a guiding way.

And the front end of the second groove 3 corresponds to the corner of the cross section of the pipe body corresponding to the rear end of the first groove 2, and an arc guide angle is adopted for transition.

The inner side of the second groove 3 is correspondingly matched with the outer side of the first groove 2, a small allowance gap is reserved between the inner side of the second groove and the outer side of the first groove, and the gap value is about 0.2 mm.

And the gap value between the front end of the second groove 3 and the tail end of the first groove in the same circumferential direction is about 0.1 mm.

The original straight notch is changed into the staggered notch, when the U-shaped clamp is clamped, the cross section corresponding to the transition of the staggered notch can play a guiding role, under the pressing force action of the U-shaped clamp, the front end pipe body of the second groove and the second groove can be guided and closed along the cross sections 4 and 5 to realize sealing, the sealing effect is improved and better sealing performance is achieved in the sealing structure mode, compared with the original straight notch, a fixed sealing section is arranged, through experiments, compressed air with the pressure of 0.03MPa and the flow of 20L/min is used for leakage test, the direct-insertion type joint sealing leakage amount is 10L/min-13L/min, and the staggered type joint sealing leakage amount is 4.5L/min-5L/min, and the problem of poor sealing performance is effectively solved.

Claims

1. The utility model provides a fork truck blast pipe alternating expression plug joint structure, including the body, its characterized in that: the utility model discloses a pipe body, including body, pipe body, groove one, groove two, the axial setting of body is followed respectively to the groove one, the groove one is the open slot, and its front end opening is located the port department of body, the preceding, the rear end of groove two all have the body section, the front end of groove two and the tail end of groove one are clearance fit on same circumferencial direction, the width of groove one and groove two is the same, and the crossing department disconnection of groove one outer side arm and groove two inside walls.

2. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 1, characterized in that: four notches are uniformly distributed on the circumferential side wall at the end opening of the pipe body insertion connection.

3. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 1, characterized in that: the length of the first groove is shorter than that of the second groove and is about 1/2 of the length of the second groove.

4. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 1, characterized in that: and the section of the pipe body corresponding to the front end of the second groove is matched with the section of the pipe body corresponding to the rear end of the first groove in a guiding manner.

5. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 4, wherein: and the front end of the second groove corresponds to the corner of the section of the pipe body corresponding to the rear end of the first groove, and an arc guide angle is adopted for transition.

6. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 1, characterized in that: the inner side of the second groove is correspondingly matched with the outer side of the first groove, a small allowance gap is reserved between the inner side of the second groove and the outer side of the first groove, and the gap value is about 0.2 mm.

7. The staggered plug-in joint structure of the exhaust pipe of the forklift truck according to claim 1, characterized in that: and the gap value between the front end of the second groove and the tail end of the first groove in the same circumferential direction is about 0.1 mm.