Quick-assembly equal-diameter straight-through joint structure

Abstract

The utility model discloses a quick-assembly equal-diameter straight-through connector structure which comprises a shell I, a shell II, a positioning block, an ejector pin and a check ring. The shell I is of a hollow cylinder structure which is horizontally and transversely arranged, and hollow cylindrical shells II are coaxially arranged on the left side face and the right side face of the shell I and are integrally formed; arc-shaped grooves communicating with the interior of the shell II are coaxially formed in the upper side and the lower side, relative to the inner circumferential surface, in the shell II, positioning blocks are arranged at the upper end and the lower end of the outer circumferential surface of the shell II in a screwed mode, and inner threaded holes are formed in the outer surfaces of the positioning blocks in an embedded mode; a check ring is coaxially arranged in the arc-shaped groove, a T-shaped ejector pin is coaxially arranged in the threaded hole in the positioning block, the small-diameter end of the ejector pin is in threaded connection with the outer arc-shaped face of the corresponding check ring in the radial direction of the shell II, the small-diameter end of the ejector pin is sleeved with a first spring, and after the pipeline is sleeved with the corresponding shell II, the check ring is clamped in the corresponding groove through the first spring. According to the utility model, the check rings can be clamped in the corresponding grooves, so that the pipeline and the joint are connected together.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, and particularly relates to a quick-installation equal-diameter straight-through joint structure. Background Art

[0002] As an important part of urban infrastructure construction, pipes play the role of transporting media. Due to the limitations in the production, transportation, and installation of pipes, pipes need to be cut into multiple sections for easy transportation, and then multiple sections of pipes are connected together through joints during installation.

[0003] Currently, the general joints usually adopt screw connection, clamping connection, or hoop connection to fixedly connect the two ends of the pipes together. However, these fixing methods have the following disadvantages respectively: 1) Although the screw connection method can ensure the stability of the fixed connection, it is necessary to align the screw holes before screwing, and the installation and disassembly are cumbersome, time-consuming, and laborious; 2) Although the clamping connection method is convenient and fast, the stability of its fixed connection is not high, and it is easy to cause looseness between the joint and the pipe; 3) Although the hoop connection method is convenient, when the hoop needs to be disassembled for maintenance, the hoop will be deformed and affect its reuse. Therefore, the above problems need to be solved urgently. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a quick-installation equal-diameter straight-through joint structure. By the combined use of the first spring and the retaining ring, the retaining ring can be clamped in the groove of the pipe, thereby connecting the pipe and the joint together.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a quick-install equal-diameter straight-through joint structure of the utility model, the innovation of which is that it includes a shell I, a shell II, a positioning block, a ejector pin, a first spring and a retaining ring; the shell I is a hollow cylindrical structure arranged horizontally and transversely, and a hollow cylindrical shell II is coaxially arranged on its left and right sides, and the two are integrally formed; an arc groove is coaxially embedded in the middle position of each shell II relative to the upper and lower sides of its inner circumference, and each of the arc grooves is connected to the interior of the corresponding shell II; positioning blocks are respectively screwed at the upper and lower ends of the outer circumference of each shell II, and an internal threaded hole is vertically embedded in the middle position of the outer surface of each positioning block to ensure The inner threaded hole is ensured not to extend out of the inner surface of the corresponding positioning block; a circular annular groove is coaxially embedded in the outer circumferential surface of the pipe near its end, and a circular arc-shaped retaining ring matching the groove is coaxially provided in each arc-shaped groove; a T-shaped ejector pin is coaxially slidably sleeved in the inner threaded hole of each positioning block, and the small diameter end of each ejector pin extends radially along the shell II into the corresponding arc-shaped groove, and is screwed and fixed to the middle position of the outer arc-shaped surface of the corresponding retaining ring; a first spring is coaxially sleeved on the small diameter end of each ejector pin relative to the positioning block and the corresponding retaining ring, and after the pipe is coaxially sleeved in the corresponding shell II, the retaining ring is clamped in the corresponding groove by the spring force of the first spring, thereby connecting the pipe and the corresponding shell II together.

[0006] Preferably, the inner diameter of each shell II matches the outer diameter of the pipeline, and the interior thereof is connected to the interior of the shell I; the outer diameter of each shell II is larger than the outer diameter of the shell I, and the cross-section of the two after integral molding is I-shaped, thereby forming an equal-diameter straight-through structure.

[0007] Preferably, the width of each of the arc-shaped grooves is smaller than the lateral width of the corresponding shell II, and the inner diameter thereof corresponds to the inner diameter of the corresponding shell II, and the outer diameter thereof is smaller than the outer diameter of the corresponding shell II.

[0008] Preferably, each of the positioning blocks is a cylindrical structure and is arranged radially along the shell II. A circular boss is coaxially fitted on the inner surface of each positioning block, and each of the circular bosses is integrally formed with the corresponding positioning block; the diameter of each circular boss is smaller than the diameter of the corresponding positioning block, and an external thread is also provided on its outer circumferential surface; each of the positioning blocks is screwed and fixed to the corresponding outer circumferential surface of the shell II through the boss, and it is necessary to ensure that the boss parts extend into the corresponding arc groove and are respectively and spaced apart on the outside of the corresponding retaining ring.

[0009] Preferably, the diameter of the small-diameter end of each thimble is smaller than the diameter of the corresponding circular boss, and the sliding of the thimble in the direction towards the center of the corresponding housing II is limited by a positioning block; the outer diameter of the large-diameter end of each thimble is smaller than the diameter of the corresponding internal threaded hole, and it is necessary to ensure that the internal threaded hole does not interfere with the sliding of the thimble in the corresponding positioning block along the radial direction of the housing II.

[0010] Preferably, the width of each retaining ring matches the diameter of the corresponding circular boss and also matches the width of the groove of the pipeline. It is necessary to ensure that after the positioning block is disassembled from the corresponding housing II, the retaining ring is detached from the corresponding housing II together with the thimble through the thimble; the inner arc surface of each retaining ring is an inner conical surface that matches the outer circumferential surface of the pipeline, and the diameter on the side away from the housing I is larger than the outer diameter of the pipeline, and the diameter on the side close to the housing I is smaller than the outer diameter of the pipeline. Thus, when the pipeline is coaxially inserted into the corresponding housing II, the retaining ring is pushed in the direction away from the pipeline to compress the first spring, and when the groove moves to a position relative to the retaining ring along with the pipeline, the retaining ring is clamped in the groove of the pipeline by the spring force of the first spring.

[0011] Preferably, inside the housing I, sealing rings that match the pipeline are coaxially sleeved at left and right intervals symmetrically, and the installation position of each sealing ring is such that when the retaining ring is clamped in the groove, the end of the pipeline is coaxially inserted into the corresponding sealing ring.

[0012] Preferably, it further includes positioning bolts; inside the internal threaded hole of each positioning block, a positioning bolt that matches the internal threaded hole is coaxially screwed, and the thimble is limited by the abutting contact of each positioning bolt with the end face of the large-diameter end of the corresponding thimble, thereby ensuring that the retaining ring is always clamped in the groove of the pipeline.

[0013] Advantages of the utility model:

[0014] (1) By the combined use of the first spring and the retaining ring in the utility model, the retaining ring can be clamped in the groove of the pipeline, thereby connecting the pipeline and the joint together;

[0015] (2) In the utility model, by tightening the positioning bolt to abut against the thimble, it is convenient to limit the thimble, ensuring that the retaining ring is always clamped in the groove of the pipeline and guaranteeing the stability of the connection between the pipeline and the joint;

[0016] (3) Through the screw connection design of the positioning block in the utility model, it is convenient to separate the retaining ring from the groove of the pipeline by disassembling the positioning block, thereby separating the pipeline and the joint. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a structural schematic diagram of a quick-install equal-diameter straight-through joint structure.

[0019] Figure 2 for Figure 1 Side view of.

[0020] Figure 3 It is a schematic diagram of the state when the pipeline of the utility model contacts with the retaining ring.

[0021] Figure 4 It is a schematic diagram of the state in which the retaining ring of the utility model is clamped in the pipeline groove.

[0022] Figure 5 It is a schematic diagram of the state when the positioning bolt of the utility model is pressed against the ejector pin.

[0023] Among them, 1-shell I; 2-shell II; 3-sealing ring; 4-retaining ring; 5-first spring; 6-thimble; 7-positioning bolt; 8-positioning block; 9-groove; 10-arc groove; 11-internal threaded hole; 12-pipeline. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0025] The utility model discloses a quick-install equal-diameter straight-through joint structure, and the utility model discloses a quick-install equal-diameter straight-through joint structure, comprising a housing Ⅰ1, a housing Ⅱ2, a positioning block 8, a ejector pin 6, a first spring 5 and a retaining ring 4; the specific structure is as follows Figures 1 - 5 As shown, shell Ⅰ1 is a hollow cylindrical structure arranged horizontally, and hollow cylindrical shells Ⅱ2 are coaxially arranged on its left and right sides, and the two are integrally formed; the inner diameter of each shell Ⅱ2 matches the outer diameter of the pipe 12, and the interior thereof is connected with the interior of shell Ⅰ1; the outer diameter of each shell Ⅱ2 is larger than the outer diameter of shell Ⅰ1, and the cross-section of the two after integrally forming is I-shaped, thereby forming an equal-diameter straight-through structure.

[0026] like Figures 1 - 5As shown, in the middle position of each housing II2, arc-shaped grooves 10 are coaxially embedded and opened on both the upper and lower sides relative to its inner circumferential surface, and each arc-shaped groove 10 communicates with the interior of the corresponding housing II2; the width of each arc-shaped groove 10 is smaller than the transverse width of the corresponding housing II2, and its inner diameter corresponds to the inner diameter of the corresponding housing II2, and its outer diameter is smaller than the outer diameter of the corresponding housing II2.

[0027] In the utility model, an annular groove 9 is coaxially embedded and opened on the outer circumferential surface of the pipeline 12 near its end, and an arc-shaped retaining ring 4 matching the groove 9 is coaxially arranged in each arc-shaped groove 10; as Figures 1 - 5 shown, positioning blocks 8 are respectively screwed and arranged at the upper and lower ends of the outer circumferential surface of each housing II2, and an internal thread hole 11 is vertically embedded in the middle position of the outer surface of each positioning block 8, and it is ensured that the internal thread hole 11 does not extend out of the inner surface of the corresponding positioning block 8; each positioning block 8 is of a cylindrical structure and is arranged along the radial direction of the housing II2. A circular boss is coaxially attached to the inner surface of each positioning block 8, and each circular boss is integrally formed with the corresponding positioning block 8; the diameter of each circular boss is smaller than the diameter of the corresponding positioning block 8, and an external thread is provided on its outer circumferential surface; each positioning block 8 is respectively screwed and fixed to the corresponding position on the outer circumferential surface of the corresponding housing II2 through the boss, and it is necessary to ensure that its boss part extends into the corresponding arc-shaped groove 10 and is respectively arranged at intervals outside the corresponding retaining ring 4.

[0028] In the utility model, a T-shaped thimble 6 is also coaxially slidably sleeved in the internal thread hole 11 of each positioning block 8, as Figures 1 - 5 shown, the small-diameter end of each thimble 6 extends along the radial direction of the housing II2 into the corresponding arc-shaped groove 10 and is screwed and fixed to the middle position of the outer arc surface of the corresponding retaining ring 4; a first spring 5 is coaxially sleeved between the small-diameter end of each thimble 6 and the corresponding retaining ring 4 relative to the positioning block 8. After the pipeline 12 is coaxially sleeved in the corresponding housing II2, the retaining ring 4 is clamped in the corresponding groove 9 by the spring force of the first spring 5, and then the pipeline 12 is connected to the corresponding housing II2; wherein, the diameter of the small-diameter end of each thimble 6 is smaller than the diameter of the corresponding circular boss, and the sliding of the thimble 6 towards the center direction of the corresponding housing II2 is limited by the positioning block 8; the outer diameter of the large-diameter end of each thimble 6 is smaller than the diameter of the corresponding internal thread hole 11, and it is necessary to ensure that the internal thread hole 11 does not interfere with the sliding of the thimble 6 in the corresponding positioning block 8 along the radial direction of the housing II2.

[0029] As Figures 1 - 5As shown in the figure, the width of each retaining ring 4 matches the diameter of the corresponding circular boss and also matches the width of the groove 9 of the pipeline 12. It is necessary to ensure that after the positioning block 8 is disassembled from the corresponding housing II 2, the retaining ring 4 is disengaged from the corresponding housing II 2 with the positioning block 8 through the ejector pin 6. The inner arc surface of each retaining ring 4 is an inner conical surface that matches the outer circumferential surface of the pipeline 12. The diameter on the side away from the housing I 1 is larger than the outer diameter of the pipeline 12, and the diameter on the side close to the housing I 1 is smaller than the outer diameter of the pipeline 12. Thus, when the pipeline 12 is coaxially inserted into the corresponding housing II 2, the retaining ring 4 is pushed away from the pipeline 12 to compress the first spring 5, and when the groove 9 moves to a position relative to the retaining ring 4 along with the pipeline 12, the retaining ring 4 is clamped in the groove 9 of the pipeline 12 by the spring force of the first spring 5.

[0030] As Figures 1 - 5 shown in the figure, inside the housing I 1, sealing rings 3 that match the pipeline 12 are coaxially sleeved at left and right intervals symmetrically. The installation position of each sealing ring 3 needs to ensure that when the retaining ring 4 is clamped in the groove 9, the end of the pipeline 12 is coaxially inserted into the corresponding sealing ring 3.

[0031] As Figures 1 - 5 shown in the figure, inside the internal threaded hole 11 of each positioning block 8, a positioning bolt 7 that matches the internal threaded hole 11 is coaxially screwed. By the abutting contact between each positioning bolt 7 and the large-diameter end face of the corresponding ejector pin 6, the ejector pin 6 is limited, thus ensuring that the retaining ring 4 is always clamped in the groove 9 of the pipeline 12 and guaranteeing the stability of the connection between the pipeline 12 and the joint.

[0032] The technical solution of the present utility model is not only applicable to equal-diameter straight-through joints, but also applicable to different-diameter straight-through joints, 90° elbows, 45° elbows, and straight tee joints, etc. The principle is similar to that of this application, so it will not be elaborated here.

[0033] The working principle of the present utility model, as Figures 1 - 5 shown in the figure, includes the following steps:

[0034] Step 1: First, loosen the positioning bolt 7 to create a gap between it and the large-diameter end face of the corresponding ejector pin 6, and ensure that the ejector pin 6 can slide within the gap range.

[0035] Step 2: Then, coaxially insert one end of the pipeline 12 with the groove 9 into the corresponding housing II 2. At this time, the outer circumferential surface of the pipeline 12 contacts the inner arc surface of the corresponding retaining ring 4, and as the pipeline 12 continues to be inserted, it squeezes the corresponding retaining ring 4, causing the retaining ring 4 to move radially along the housing II 2 towards the corresponding positioning block 8, thereby compressing the corresponding first spring 5.

[0036] Step three: When the end of the pipe 12 is coaxially inserted into the corresponding sealing ring 3, the groove 9 of the pipe 12 is opposite to the retaining ring 4. At this time, under the action of the spring force of the first spring 5, the retaining ring 4 moves radially toward the pipe 12 along the shell Ⅱ2 and is clamped in the groove 9 of the pipe 12, thereby connecting the pipe 12 with the corresponding shell Ⅱ2.

[0037] Step 4: Then tighten the positioning bolt 7 to make it tightly contact with the end face of the large diameter end of the corresponding ejector pin 6, thereby limiting the position of the ejector pin 6 to ensure that the retaining ring 4 is always clamped in the groove 9 of the pipe 12.

[0038] Step 5: When the pipeline 12 needs to be disassembled, first loosen the positioning bolt 7, then loosen the positioning block 8, and then the positioning block 8 can be disassembled from the corresponding shell Ⅱ2, and the retaining ring 4 is separated from the corresponding shell Ⅱ2 along with the positioning block 8 through the ejector pin 6; then the pipeline 12 can be separated from the corresponding shell Ⅱ2.

[0039] Beneficial effects of the utility model:

[0040] (1) The utility model uses the first spring 5 and the retaining ring 4 in cooperation, so that the retaining ring 4 can be clamped in the groove 9 of the pipe 12, thereby connecting the pipe 12 and the joint together;

[0041] (2) The utility model tightens the positioning bolt 7 to hold the ejector pin 6, thereby facilitating the positioning of the ejector pin 6, ensuring that the retaining ring 4 is always clamped in the groove 9 of the pipe 12, thereby ensuring the stability of the connection between the pipe 12 and the joint;

[0042] (3) The present invention uses a screw connection design of the positioning block 8 to facilitate the removal of the positioning block 8 so as to separate the retaining ring 4 from the groove 9 of the pipe 12, thereby separating the pipe 12 from the joint.

[0043] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A quick-install equal-diameter straight-through joint structure, characterized in that: It includes a shell I, a shell II, a positioning block, a ejector pin, a first spring and a retaining ring; the shell I is a hollow cylindrical structure arranged horizontally, and a hollow cylindrical shell II is coaxially arranged on its left and right sides, and the two are integrally formed; an arc groove is coaxially embedded in the middle position of each shell II relative to the upper and lower sides of its inner circumference, and each of the arc grooves is connected to the inside of the corresponding shell II; positioning blocks are respectively screwed at the upper and lower ends of the outer circumference of each shell II, and an internal threaded hole is vertically embedded in the middle position of the outer surface of each positioning block, and it is ensured that the internal threaded hole does not extend out of the inner surface of the corresponding positioning block; in the pipeline The outer circumferential surface is coaxially embedded with a circular groove near its end, and a circular arc-shaped retaining ring matching the groove is coaxially arranged in each of the arc-shaped grooves; a T-shaped ejector pin is coaxially slidably sleeved in the internal threaded hole of each positioning block, and the small diameter end of each ejector pin extends radially along the shell II into the corresponding arc-shaped groove, and is screwed and fixed to the middle position of the outer arc-shaped surface of the corresponding retaining ring; a first spring is coaxially sleeved on the small diameter end of each ejector pin relative to the positioning block and the corresponding retaining ring, and after the pipeline is coaxially sleeved in the corresponding shell II, the retaining ring is clamped in the corresponding groove by the spring force of the first spring, thereby connecting the pipeline and the corresponding shell II together.

2. A quick-install equal-diameter straight-through joint structure according to claim 1, characterized in that: The inner diameter of each shell II matches the outer diameter of the pipeline, and its interior is connected to the interior of the shell I; the outer diameter of each shell II is larger than the outer diameter of the shell I, and the cross-section of the two after integral molding is I-shaped, thereby forming an equal-diameter straight-through structure.

3. The quick-install equal-diameter straight-through joint structure according to claim 1, characterized in that: The width of each arc-shaped groove is smaller than the lateral width of the corresponding shell II, and its inner diameter corresponds to the inner diameter of the corresponding shell II, and its outer diameter is smaller than the outer diameter of the corresponding shell II.

4. The quick-install equal-diameter straight-through joint structure according to claim 1, characterized in that: Each of the positioning blocks is a cylindrical structure and is arranged radially along the shell II. A circular boss is coaxially fitted on the inner surface of each positioning block, and each of the circular bosses is integrally formed with the corresponding positioning block; the diameter of each circular boss is smaller than the diameter of the corresponding positioning block, and an external thread is also provided on its outer circumferential surface; each of the positioning blocks is screwed and fixed to the corresponding position of the outer circumferential surface of the shell II through the boss, and it is necessary to ensure that the boss parts extend into the corresponding arc groove and are respectively arranged at intervals on the outside of the corresponding retaining ring.

5. The quick-install equal-diameter straight-through joint structure according to claim 4, characterized in that: The diameter of the small diameter end of each ejector pin is smaller than the diameter of the corresponding circular boss, and the sliding of the ejector pin toward the center direction of the corresponding shell II is limited by the positioning block; the outer diameter of the large diameter end of each ejector pin is smaller than the diameter of the corresponding internal threaded hole, and it is necessary to ensure that the internal threaded hole does not interfere with the radial sliding of the ejector pin in the corresponding positioning block along the shell II.

6. The quick-install equal-diameter straight-through joint structure according to claim 4, characterized in that: The width of each retaining ring matches the diameter of the corresponding circular boss and the groove width of the pipeline, and it is necessary to ensure that after the positioning block is removed from the corresponding shell II, the retaining ring is detached from the corresponding shell II along with the positioning block through the ejector pin; the inner arc surface of each retaining ring is an inner conical surface matching the outer circumferential surface of the pipeline, and its diameter away from the shell I side is larger than the outer diameter of the pipeline, and its diameter close to the shell I side is smaller than the outer diameter of the pipeline, and then when the pipeline is coaxially inserted into the corresponding shell II, the retaining ring is pushed in the direction away from the pipeline to compress the first spring, and when the groove moves with the pipeline to a position relative to the retaining ring, the retaining ring is clamped in the groove of the pipeline by the spring force of the first spring.

7. A quick-install equal-diameter straight-through joint structure according to claim 6, characterized in that: Inside the shell I, sealing rings matching the pipe are coaxially sleeved and symmetrically spaced on the left and right, and the setting position of each sealing ring must ensure that when the retaining ring is clamped in the groove, the end of the pipe is coaxially inserted into the corresponding sealing ring.

8. The quick-install equal-diameter straight-through joint structure according to claim 6, characterized in that: It also includes a positioning bolt; a positioning bolt matching the internal threaded hole is coaxially threaded in the internal threaded hole of each positioning block, and the ejector is limited by the tight contact between each positioning bolt and the end face of the corresponding large diameter end of the ejector, thereby ensuring that the retaining ring is always clamped in the groove of the pipeline.

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