CN218976314U

CN218976314U - Double-sealing structure pipe joint for speed sensor

Info

Publication number: CN218976314U
Application number: CN202320065369.5U
Authority: CN
Inventors: 段荣; 周友佳
Original assignee: Ningbo Gavin Corp
Current assignee: Ningbo Gavin Corp
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-05-05
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a double-sealing structure pipe joint for a speed sensor, which relates to the field of pipeline sealing and comprises a rubber pipe, a connecting pipe, a cable sleeve and a cable, wherein one side of the connecting pipe is a rubber pipe connecting end, the other side of the connecting pipe is a joint connecting end, the periphery of the rubber pipe connecting end is circumferentially provided with a connecting outer pipe, a cavity is formed between the connecting outer pipe and the rubber pipe connecting end, a rubber pipe sleeve is arranged in the cavity, a rubber pipe opening part is sealed and sleeved on the rubber pipe connecting end, the rubber pipe sleeve is sleeved outside the rubber pipe, and a tail pipe is sleeved on the periphery of the rubber pipe sleeve and is locked relative to the connecting outer pipe; one end of the cable sleeve extends into the joint connecting end, the other end of the cable sleeve is sleeved with the joint body, and the joint body is locked relative to the joint connecting port part; the rubber tube is sleeved outside the cable, and the cable sequentially passes through the connecting tube and the cable sleeve and then extends out of the opening of the joint body. The utility model effectively solves the problems that the product is water-in and poor in insulation and pressure resistance caused by the breakage of the rubber tube and the cable core wire is in failure and falling caused by fatigue of welding or crimping parts.

Description

Double-sealing structure pipe joint for speed sensor

Technical Field

The utility model relates to the field of pipeline sealing, in particular to a double-sealing structure pipe joint for a speed sensor.

Background

On urban rail vehicles, the stability of the braking system is largely dependent on the reliability and accuracy of the speed signals it collects. It is therefore important to improve the reliability of the speed sensor and reduce the failure rate. Through analysis of the failure products: the rubber tube is damaged to cause water inflow of the product and poor insulation and pressure resistance, and the cable core wire is welded or the compression joint part is fatigued to cause failure and falling.

In the prior art, as disclosed in chinese patent document (CN 205978926U), a pipe joint structure is disclosed, which comprises a pipe joint body and a connecting pipe butt-jointed at two ports of the pipe joint body, the connecting pipe extends into the ports of the pipe joint body, at least two O-shaped sealing rings are embedded in parallel on the inner ring surface of the port of the pipe joint body corresponding to the connecting pipe, the O-shaped sealing rings are expanded between the mating surfaces of the connecting pipe and the pipe joint body, a clamping cap is sleeved outside the ports of the pipe joint body, a claw is sleeved on the connecting pipe corresponding to the clamping cap, and the claw clamps the connecting pipe and is clamped in the clamping cap in a matching manner. But it is mainly suitable for liquid pipe connections and is difficult to apply to electrically connected pipes.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a double-sealing structure pipe joint for a speed sensor, which solves the problems that a product is fed by water and is poor in insulation and pressure resistance due to the damage of a rubber pipe and a cable core wire is in fatigue and falls off due to the fatigue of a welding or crimping part.

The utility model aims at being completed by the following technical scheme: the double-sealing-structure pipe joint for the speed sensor comprises a rubber pipe, a connecting pipe, a cable sleeve and a cable, wherein one side of the connecting pipe is a rubber pipe connecting end, the other side of the connecting pipe is a joint connecting end, a connecting outer pipe is circumferentially arranged at the periphery of the rubber pipe connecting end, a cavity is formed between the connecting outer pipe and the rubber pipe connecting end, the rubber pipe sleeve is arranged in the cavity, the rubber pipe sleeve is sleeved on the rubber pipe connecting end in a sealing manner at the mouth of the rubber pipe, the rubber pipe sleeve is sleeved outside the rubber pipe, and a tail pipe sleeve is sleeved at the periphery of the rubber pipe sleeve and locked relative to the connecting outer pipe; one end of the cable sleeve extends into the joint connecting end, the other end of the cable sleeve is sleeved with a joint body, and the joint body is locked relative to the joint connecting port part; the rubber tube is sleeved outside the cable, and the cable sequentially passes through the connecting tube and the cable sleeve and then extends out of the opening of the joint body.

As a further technical scheme, the outer wall of the rubber tube connecting end is provided with a barb, and the inner wall of the rubber tube is in interference fit with the barb.

As a further technical scheme, set up the circular arc body on the inner wall of tail pipe, when the outer tube locking is connected relatively to the tail pipe, the circular arc body is used for supporting on the rubber tube cover and promotes the relative rubber tube locking of rubber tube cover, and rubber tube cover outer wall and the laminating of connecting outer tube inner wall.

As a further technical scheme, the tail pipe opening is provided with internal threads, the outer wall of the connecting outer pipe is provided with external threads, the tail pipe and the connecting pipe are locked through threaded connection, and the locking position reaches the protection grade of IP 68.

As a further technical scheme, be equipped with the step that is used for the cooperation to connect the outer tube on the gum tube cover, be equipped with the external spline on the step for the cooperation sets up the internal spline on connecting the outer tube inner wall, makes connecting pipe and gum tube cover pass through spline connection.

As a further technical scheme, be equipped with the arc surface on the inner wall of joint link, when the relative joint link locking of joint, the arc surface is used for supporting on the cable sheath and promotes the cable sheath relative cable locking.

As a further technical scheme, the outer wall of the cable sleeve and the inner wall of the joint body are provided with mutually matched steps, the step of the cable sleeve is provided with an external spline, the step of the joint body is provided with an internal spline, and the joint body is connected with the cable sleeve through the spline.

As a further technical scheme, a plurality of raised clamping ribs are arranged on the inner wall of the cable sleeve at intervals, and the cable is in interference fit with the clamping ribs.

As a further technical scheme, the inner wall opening part of the joint connecting end is provided with an internal thread, the outer wall of the joint body is provided with an external thread, the connecting pipe and the joint body are locked through threaded connection, and the locking part reaches the protection grade of IP 68.

As a further technical scheme, the O-shaped ring is sleeved on the outer wall of the joint body and is used for being connected with the head of the speed sensor in a sealing mode.

The beneficial effects of the utility model are as follows:

1. the inside and outside of the rubber tube are clamped, the protection grade of IP68 can be achieved through screwing the tail tube and the connecting tube, and certain pulling-out force is provided;

2. the cable cooperates with the card muscle of the cable sheath, can reach the protection grade of IP68 through the spin of joint body and connecting pipe, like this liquid can not flow to the electric wire connection position along the cable either under the circumstances of rubber tube damage, and cable heart yearn welding or crimping position and speed sensor become into a whole after the cable is locked in addition, can not receive the influence of automobile body vibration and produce relative swing, and this risk that just significantly reduces the contact position and breaks away from.

Drawings

Fig. 1 is a right side view of the structure of the present utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

Fig. 3 is a top view of the structure of the present utility model.

Fig. 4 is a half cross-sectional view of region B in fig. 3.

Fig. 5 is a schematic structural view of a hose cover according to the present utility model.

Fig. 6 is a schematic structural view of a connecting pipe according to the present utility model.

Fig. 7 is a schematic view 1 of a cable jacket according to the present utility model.

Fig. 8 is a schematic view of the cable jacket structure 2 according to the present utility model.

Fig. 9 is a schematic structural view of a joint body according to the present utility model.

Reference numerals illustrate: rubber tube 1, barb 2, tail pipe 3, circular arc body 4, rubber tube cover 5, connecting pipe 6, rubber tube connecting end 61, joint connecting end 62, connecting outer tube 63, cavity 64, circular arc surface 65, cable cover 7, joint bar 8, O-ring 9, joint body 10, cable 11, step 12, external spline 13, internal spline 14.

Detailed Description

The utility model will be described in detail below with reference to the attached drawings:

examples: as shown in figures 1-9, the double-sealing-structure pipe joint for the speed sensor comprises a rubber pipe 1, a barb 2, a tail pipe 3, an arc body 4, a rubber pipe sleeve 5, a connecting pipe 6, a rubber pipe connecting end 61, a joint connecting end 62, a connecting outer pipe 63, a cavity 64, an arc surface 65, a cable sleeve 7, a clamping rib 8, an O-shaped ring 9, a joint body 10, a cable 11, a step 12, an external spline 13 and an internal spline 14.

Referring to fig. 6, a hose connection end 61 is provided on the left side of the connection tube 6, a joint connection end 62 is provided on the right side of the connection tube 6, a connection outer tube 63 (formed by extending the connection tube 6 body to the left side) is circumferentially provided on the outer periphery of the hose connection end 61, and a cavity 64 is formed between the connection outer tube 63 and the hose connection end 61. As shown in fig. 2 and 4, a rubber sleeve 5 (preferably made of rubber material) is arranged in the cavity 64, a barb 2 is arranged on the outer wall of the rubber tube connecting end 61, and the barb 2 is in interference fit with the inner wall of the rubber tube 1, so that the mouth of the rubber tube 1 is sealed with the rubber tube connecting end 61. The rubber tube sleeve 5 is sleeved outside the rubber tube 1, the tail tube 3 is sleeved on the periphery of the rubber tube sleeve 5, the opening of the tail tube 3 is provided with internal threads, the outer wall of the connecting outer tube 63 is provided with external threads, the tail tube 3 and the connecting tube 6 (the connecting outer tube 63) are locked through threaded connection, and the locking position reaches the protection grade of IP 68. Further, the circular arc body 4 is arranged on the inner wall of the tail pipe 3, when the tail pipe 3 is locked relative to the outer pipe 63, the circular arc body 4 can prop against the rubber pipe sleeve 5 and push the rubber pipe sleeve 5 to be locked relative to the rubber pipe 1, and as the rubber pipe sleeve 5 is made of rubber materials, the radial direction and the axial direction of the rubber pipe sleeve 5 can be compressed, the outer wall of the rubber pipe sleeve 5 is attached to the inner wall of the outer pipe 63, and the inner wall of the rubber pipe sleeve 5 is pressed against the outer wall of the rubber pipe 1. As shown in fig. 5 and 6, preferably, a step 12 for matching with the outer tube 63 is provided on the rubber tube sleeve 5, and an external spline 13 is provided on the step 12 for matching with an internal spline 14 provided on the inner wall of the outer tube 63, so that the connecting tube 6 and the rubber tube sleeve 5 are connected through the spline to form a whole.

As shown in fig. 2 and 4, the left end of the cable sleeve 7 (preferably made of rubber material) extends into the joint connection end 62, the right end of the cable sleeve 7 is sleeved with the joint body 10, the inner wall opening of the joint connection end 62 is provided with internal threads, the outer wall of the joint body 10 is provided with external threads, the connecting pipe 6 and the joint body 10 are locked through threaded connection, and the locking position reaches the protection level of the IP 68. Further, an arc surface 65 is provided on the inner wall of the joint connection end 62, and when the joint body 10 is locked relative to the joint connection end 62, the arc surface 65 can abut against the cable sleeve 7 and push the cable sleeve 7 to be locked relative to the cable 11. Referring to fig. 4, 7, 8 and 9, mutually matched steps 12 are arranged on the outer wall of the cable sleeve 7 and the inner wall of the joint body 10, external splines 13 are arranged near the steps 12 of the cable sleeve 7, internal splines 14 are arranged near the steps 12 of the joint body 10, and the joint body 10 is connected with the cable sleeve 7 through splines.

Preferably, as shown in fig. 4 and 8, a plurality of protruding clamping ribs 8 are arranged on the inner wall of the cable sleeve 7 at equal intervals, the cable 11 is in interference fit with the clamping ribs 8, as shown in fig. 2, the rubber tube 1 is sleeved outside the cable 11, and the cable 11 sequentially passes through the connecting tube 6 and the cable sleeve 7 and then extends out of the opening of the connector body 10. Further, an O-shaped ring 9 is sleeved on the outer wall of the right side of the connector body 10, and when the right end of the connector body 10 is connected with the head of the speed sensor through threads, the O-shaped ring 9 can play a role in sealing connection. For the cable 11 (i.e. the position which needs to be contacted with the speed sensor) on the right side of the connector body 10, the cable 11 is firstly pressed by the clamping ribs 8 (the cable sleeve 7), the cable sleeve 7 is locked relative to the connecting pipe 6 and the connector body 10 to form a whole, and the contact position is not affected by the vibration of the vehicle body to generate relative swinging, so that the risk of disengaging the contact position is greatly reduced.

The working principle of the utility model is as follows: in the utility model, the inner wall of the rubber tube 1 is in interference fit with the barb 2 on the connecting tube 6, the outer wall of the rubber tube 1 is in fit with the rubber tube sleeve 5, and in the screwing process of the internal thread of the tail tube 3 and the external thread of the connecting tube 6, the circular arc body 4 of the tail tube 3 pushes the rubber tube sleeve 5 to be tightly matched with the rubber tube 1 for locking; the cable 11 is matched with the clamping rib 8 of the cable sleeve 7, and in the screwing process of the external thread of the connector body 10 and the internal thread of the connecting pipe 6, the arc surface of the connecting pipe 6 pushes the cable sleeve 7 and the rubber pipe cable 11 to be tightly matched and locked. Because the rubber tube 1 is clamped inside and outside, the protection grade of IP68 can be achieved through the screwing of the tail tube 3 and the connecting tube 6, and certain pulling-out force is provided, so that the inner cable 11 is well protected. In addition, because the cable 11 is matched with the clamping rib 8 of the cable sleeve 7, the protection grade of the IP68 can be achieved through the screwing of the connector body 10 and the connecting pipe 6, so that even if the rubber pipe is damaged, liquid cannot flow to the wire connection part along the cable, in addition, after the cable is locked, the cable core wire welding or crimping part and the speed sensor are integrated, relative swinging can not be generated due to the influence of vibration of a vehicle body, and the risk of disconnection of the contact part is greatly reduced.

It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present utility model should fall within the scope of the claims appended hereto.

Claims

1. A double seal structure pipe joint for a speed sensor, characterized in that: the novel rubber hose comprises a rubber hose (1), a connecting pipe (6), a cable sleeve (7) and a cable (11), wherein one side of the connecting pipe (6) is a rubber hose connecting end (61), the other side of the connecting pipe (6) is a joint connecting end (62), a connecting outer pipe (63) is arranged around the periphery of the rubber hose connecting end (61), a cavity (64) is formed between the connecting outer pipe (63) and the rubber hose connecting end (61), a rubber hose sleeve (5) is arranged in the cavity (64), the mouth part of the rubber hose (1) is sealed and sleeved on the rubber hose connecting end (61), the rubber hose sleeve (5) is sleeved outside the rubber hose (1), and a tail pipe (3) is sleeved on the periphery of the rubber hose sleeve (5) and is locked relative to the connecting outer pipe (63); one end of the cable sleeve (7) extends into the joint connecting end (62), the other end of the cable sleeve (7) is sleeved with the joint body (10), and the joint body (10) is locked relative to the mouth of the joint connecting end (62); the rubber tube (1) is sleeved outside the cable (11), and the cable (11) sequentially passes through the connecting pipe (6) and the cable sleeve (7) and then extends out of the opening of the connector body (10).

2. The double seal construction pipe joint for a speed sensor according to claim 1, wherein: the outer wall of the rubber tube connecting end (61) is provided with a barb (2), and the inner wall of the rubber tube (1) is in interference fit with the barb (2).

3. The double seal construction pipe joint for a speed sensor according to claim 1, wherein: the inner wall of the tail pipe (3) is provided with an arc body (4), when the tail pipe (3) is relatively connected with the outer pipe (63) for locking, the arc body (4) is used for propping against the rubber pipe sleeve (5) and pushing the rubber pipe sleeve (5) to be locked relative to the rubber pipe (1), and the outer wall of the rubber pipe sleeve (5) is attached to the inner wall of the outer pipe (63).

4. A double seal construction pipe joint for a speed sensor according to claim 1 or 3, characterized in that: the mouth part of the tail pipe (3) is locked with the outer wall of the connecting outer pipe (63) through threaded connection, and the locking part reaches the protection grade of IP 68.

5. The double seal construction pipe joint for a speed sensor according to claim 4, wherein: the rubber tube sleeve (5) is provided with a step (12) for being matched with and connected with the outer tube (63), the step (12) is provided with an external spline (13) for being matched with an internal spline (14) arranged on the inner wall of the outer tube (63), and the connecting tube (6) is connected with the rubber tube sleeve (5) through the spline.

6. The double seal construction pipe joint for a speed sensor according to claim 1, wherein: an arc surface (65) is arranged on the inner wall of the joint connecting end (62), and when the joint body (10) is locked relative to the joint connecting end (62), the arc surface (65) is used for abutting against the cable sleeve (7) and pushing the cable sleeve (7) to be locked relative to the cable (11).

7. The double seal construction pipe joint for a speed sensor according to claim 6, wherein: the cable sleeve is characterized in that steps (12) matched with each other are arranged on the outer wall of the cable sleeve (7) and the inner wall of the connector body (10), external splines (13) are arranged at the steps (12) of the cable sleeve (7), internal splines (14) are arranged at the steps (12) of the connector body (10), and the connector body (10) is connected with the cable sleeve (7) through the splines.

8. The double seal construction pipe joint for a speed sensor according to claim 7, wherein: the inner wall of the cable sleeve (7) is provided with a plurality of protruding clamping ribs (8) at intervals, and the cable (11) is in interference fit with the clamping ribs (8).

9. The double seal construction pipe joint for a speed sensor according to claim 8, wherein: the inner wall opening of the joint connecting end (62) is locked with the outer wall of the joint body (10) through threaded connection, and the locking position achieves the protection grade of IP 68.

10. The double seal construction pipe joint for a speed sensor according to claim 9, wherein: an O-shaped ring (9) is sleeved on the outer wall of the joint body (10) and is used for being connected with the head of the speed sensor in a sealing mode.