Clamping and pressing type connector

Abstract

The utility model relates to the field of pipe fittings, and discloses a clamping and pressing type connector which comprises a pipe fitting body, a positioning check ring, a leakage-proof crimping check ring and a pressing sleeve. A plurality of wedge-shaped clamping blocks are arranged on the inner wall of the positioning check ring at intervals, each wedge-shaped clamping block is provided with a small head end and a large head end, the small head ends face the leakage-proof pressing connection check ring, through observation holes are formed in the positions, provided with the wedge-shaped clamping blocks, of the positioning check ring, and square holes corresponding to the observation holes in number and position are formed in the embedded end of the pressing sleeve. The square holes correspond to the wedge-shaped clamping blocks in shape and size, the wedge-shaped clamping blocks are clamped in the square holes in a one-to-one correspondence mode, and each square hole is communicated with the corresponding observation hole. The clamping and pressing type connector can effectively solve the problems that an observation hole of an existing pressure leakage prevention clamping and pressing type pipe fitting is prone to being blocked, and a pressing sleeve is prone to loosening.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting technical field, specifically, it relates to the card pressure type connector. BACKGROUND

[0002] In the existing pipeline connection field, the card pressure type connector usually includes a pipe body, a positioning stop ring, a leak-proof pressure contact stop ring and a compression sleeve, which not only has the advantages of simple structure, convenient installation and low cost, but also has the function of preventing the leakage of the card pressure, so it is widely used. In the existing patent in which the inner flange of the positioning stop ring and the compression sleeve is annular snap fitting, an observation hole is arranged at the position close to the inner flange of the compression sleeve, and such a structure is prone to block the observation hole during the pipe production. In the existing patent technology in which the observation hole is not easily blocked, the compression sleeve is prone to be detached from the positioning stop ring due to unreasonable structure.

[0003] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a card pressure type connector, which can effectively solve the problems of the existing leak-proof pressure card pressure type pipe that the observation hole is easily blocked and the compression sleeve is prone to be detached.

[0005] The utility model is implemented as follows:

[0006] In a first aspect, the utility model provides a card pressure type connector, which includes a pipe body, a positioning stop ring, a leak-proof pressure contact stop ring and a compression sleeve.

[0007] The positioning stop ring is clamped on the pipe body, the leak-proof pressure contact stop ring is clamped outside the positioning stop ring, and the outer wall of the pipe body, the inner wall of the positioning stop ring and the inner wall of the leak-proof pressure contact stop ring form a containing cavity for containing the compression sleeve, the compression sleeve has opposite embedded ends and free ends, and the embedded ends are arranged in the containing cavity.

[0008] The inner wall of the positioning stop ring is provided with a plurality of wedge-shaped clamping blocks, the wedge-shaped clamping blocks have small head ends and large head ends, the small head ends face the leak-proof pressure contact stop ring, the positioning stop ring is provided with a penetrating observation hole at the position where the wedge-shaped clamping blocks are arranged, the embedded end of the compression sleeve is provided with square holes corresponding in number and position to the observation holes, the square holes correspond in shape and size to the wedge-shaped clamping blocks, the plurality of wedge-shaped clamping blocks are one-to-one clamped in the plurality of square holes, and each square hole is in communication with the corresponding observation hole.

[0009] In an optional embodiment, the pipe body is provided with an annular clamping groove, and the inner wall of the positioning stop ring is provided with a clamping ring, so that the positioning stop ring and the pipe body are connected by clamping the clamping ring in the annular clamping groove.

[0010] In an optional embodiment, the positioning stop ring is provided with a plurality of clamping protrusions protruding from the circumferential surface of the positioning stop ring along the circumferential direction, and each clamping protrusion and the circumferential surface of the positioning stop ring form a limiting step.

[0011] The leakage-proof crimping stop ring comprises a plurality of spaced claw blocks which are connected into one body by a connecting sheet, and each claw block is provided with buckles at opposite ends thereof;

[0012] Each claw block is arranged between two adjacent clamping protrusions, and the buckles at the opposite ends of the claw block are limited by the corresponding two limiting steps to realize the clamping of the leakage-proof crimping stop ring and the positioning stop ring; and each observation hole is located between two adjacent claw blocks.

[0013] In an optional embodiment, a notch is formed on the positioning stop ring between two adjacent clamping protrusions.

[0014] In an optional embodiment, an empty annular groove is formed on the outer wall of the end of the positioning stop ring away from the leakage-proof crimping stop ring.

[0015] In an optional embodiment, the pipe body has a pipe connecting section, and the pipe connecting section comprises a pipe top section and a main connecting section, the pipe top section is closer to the clamping position of the positioning stop ring and the pipe body than the main connecting section, the outer diameter of the pipe top section is larger than that of the main connecting section, a plurality of sealing grooves are formed on the main connecting section at intervals, and a sealing ring is sleeved in each sealing groove.

[0016] In an optional embodiment, the outer diameter of each sealing ring is smaller than or equal to the maximum outer diameter of the main connecting section.

[0017] In an optional embodiment, the pipe top section comprises a uniform diameter part and a variable diameter part, and the annular clamping groove, the variable diameter part, the uniform diameter part and the main connecting section are sequentially arranged, and the outer diameter of the variable diameter part gradually decreases from the annular clamping groove to the uniform diameter part.

[0018] In an optional embodiment, a plurality of anti-disengagement teeth are arranged on the main connecting section.

[0019] The utility model has the following beneficial effects:

[0020] The wedge-shaped clamping block and the square hole are arranged in the clamping and pressing type connector, so that the stable connection of the pressing sleeve and the positioning stop ring can be realized, and the rotation of the pressing sleeve can be prevented; and due to the corresponding arrangement of the observation hole and the square hole, the observation hole can be prevented from being blocked during the production of the clamping and pressing type connector, and the insertion of the pipe material into the clamping and pressing type connector can be clearly observed through the observation hole. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 The structure diagram of the clamping and pressing type connector is provided for the embodiments of the present application.

[0023] Figure 2 The cross-sectional view of the clamping and pressing type connector is provided for the embodiments of the present application.

[0024] Figure 3 The exploded view of the clamping and pressing type connector is provided for the embodiments of the present application.

[0025] Figure 4 The schematic diagram of U-shaped tool pressing is provided.

[0026] Figure 5 The schematic diagram of H-shaped tool pressing is provided.

[0027] Figure 6 The schematic diagram of RF-shaped tool pressing is provided.

[0028] Figure 7 The schematic diagram of TH-shaped tool pressing is provided.

[0029] Figure 8 The schematic diagram of B-shaped tool pressing is provided.

[0030] Figure 9 The schematic diagram of RFZ tool pressing is provided.

[0031] Icon: 100 - clamping and pressing type connector; 101 - pipe body; 102 - annular clamping groove; 110 - connecting pipe section; 111 - pipe top section; 112 - main connecting section; 113 - sealing groove; 113a - first sealing groove; 113b - second sealing groove; 113c - third sealing groove; 114 - sealing ring; 115 - anti-disengagement tooth; 116 - uniform diameter part; 117 - variable diameter part; 120 - positioning stop ring; 121 - wedge-shaped clamping block; 122 - observation hole; 123 - clamping ring; 124 - clamping convex; 125 - limiting step; 126 - notch; 127 - annular clearance groove; 130 - anti-leakage pressing stop ring; 131 - claw block; 132 - connecting sheet; 133 - clasp; 140 - pressing sleeve; 141 - embedded end; 142 - free end; 143 - square hole; 1 - U-shaped tool; 2 - H-shaped tool; 3 - RF-shaped tool; 4 - TH-shaped tool; 5 - B-shaped tool; 6 - RFZ-shaped tool; 7 - pipe material. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0038] like Figures 1 to 3 As shown, this utility model embodiment provides a crimp-type connector 100, including a pipe body 101, a positioning retaining ring 120, a leak-proof crimping retaining ring 130, and a compression sleeve 140.

[0039] The positioning retaining ring 120 is engaged on the pipe fitting body 101, and the anti-leakage crimping retaining ring 130 is engaged outside the positioning retaining ring 120. The outer wall of the pipe fitting body 101, the inner wall of the positioning retaining ring 120, and the inner wall of the anti-leakage crimping retaining ring 130 form a receiving cavity for accommodating the compression sleeve 140. The compression sleeve 140 has a corresponding embedded end 141 and a free end 142, and the embedded end 141 is disposed in the receiving cavity.

[0040] The outer wall of the pipe fitting body 101 of the assembled clamp-pressing connector 100 and the inner wall of the pressing sleeve 140 form a pipe 7 assembly cavity, in use, the pipe 7 is inserted into the pipe 7 assembly cavity, and the clamp-pressing connector 100 is clamped and pressed from the outside of the clamp-pressing connector 100 by a tool to make the pressing sleeve 140 deformed to press the pipe 7, so that the pipe 7 and the pipe fitting body 101 are connected, and the leakage-proof press-fit stop ring 130 is broken under stress in the clamping and pressing process, and when the construction personnel observe that the leakage-proof press-fit stop ring 130 falls off, it can be judged that the pipe fitting connection work at this position has been completed.

[0041] The inner wall of the positioning stop ring 120 is provided with a plurality of wedge-shaped clamping blocks 121, the wedge-shaped clamping blocks 121 have a small head end and a large head end, the small head end faces the leakage-proof press-fit stop ring 130, the positioning stop ring 120 is provided with a through observation hole 122 at the position provided with the wedge-shaped clamping blocks 121, and the embedded end 141 of the pressing sleeve 140 is provided with square holes 143 corresponding in number and position to the observation holes 122, the square holes 143 correspond in shape and size to the wedge-shaped clamping blocks 121, the plurality of wedge-shaped clamping blocks 121 are clamped one by one in the plurality of square holes 143, and each square hole 143 is in communication with the corresponding observation hole 122.

[0042] The clamp-pressing connector 100 provided by the utility model can realize stable connection of the pressing sleeve 140 and the positioning stop ring 120 due to the wedge-shaped clamping blocks 121 and the square holes, can prevent the pressing sleeve 140 from rotating, and can avoid the observation hole 122 being shielded in the production process of the clamp-pressing connector 100 due to the corresponding arrangement of the observation hole 122 and the square hole, so that whether the pipe 7 is inserted in place can be clearly observed through the observation hole 122 in the process of assembling the pipe 7 to the clamp-pressing connector 100.

[0043] Optionally, the pipe fitting body 101 is provided with an annular clamping groove 102, and the inner wall of the positioning stop ring 120 is provided with a clamping ring 123, so that the positioning stop ring 120 is connected with the pipe fitting body 101 by being clamped in the annular clamping groove 102 through the clamping ring 123.

[0044] Optionally, the positioning stop ring 120 is provided with a plurality of clamping protrusions 124 protruding from the circumferential surface thereof along the circumferential direction thereof, and a limiting step 125 is formed between each clamping protrusion 124 and the circumferential surface of the positioning stop ring 120.

[0045] The leakage-proof press-fit stop ring 130 comprises a plurality of spaced claw blocks 131, and the plurality of spaced claw blocks 131 are connected into an integrated whole by a connecting sheet 132, and each claw block 131 is provided with a buckle 133 at opposite ends thereof.

[0046] Each claw block 131 is arranged between two adjacent clamping protrusions 124. The buckles 133 at the opposite ends of the claw block 131 are limited by the corresponding two limiting steps 125, so as to realize the clamping of the anti-leakage crimping stop ring 130 and the positioning stop ring 120.

[0047] Since the clamping block may block the observation hole 122 when clamped outside the positioning stop ring 120, in order to avoid blocking the observation hole 122, each observation hole 122 is located between two adjacent claw blocks 131, that is, the observation hole 122 penetrates the clamping protrusion 124 at the corresponding position.

[0048] Optionally, the anti-leakage crimping stop ring 130 is composed of 6 claw blocks 131 and 3 connecting sheets 132. Each adjacent 3 claw blocks 131 are connected by 1 connecting sheet 132.

[0049] Optionally, a notch 126 is arranged on the positioning stop ring 120 at a position between two adjacent clamping protrusions 124. The notch 126 is arranged to accommodate the claw block 131.

[0050] Optionally, an empty annular groove 127 is arranged on the outer wall of the end of the positioning stop ring 120 away from the anti-leakage crimping stop ring 130. When the TH-type tool 4 or the B-type tool 5 is used for crimping, the empty annular groove 127 can play an emptying role.

[0051] Optionally, the pipe body 101 has a pipe connecting section 110, which includes a pipe top section 111 and a main connecting section 112. The pipe top section 111 is closer to the annular clamping groove 102 than the main connecting section 112. The outer diameter of the pipe top section 111 is greater than that of the main connecting section 112. A plurality of sealing grooves 113 are arranged on the main connecting section 112 at intervals. A sealing ring 114 is arranged in each sealing groove 113.

[0052] Optionally, the outer diameter of each sealing ring 114 is less than or equal to the maximum outer diameter R of the main connecting section 112. That is, when the pipe material 7 is inserted into the pipe material 7 assembly cavity, the sealing effect cannot be achieved, and the sealing can be achieved only after the pipe material 7 is clamped by the tool.

[0053] Optionally, the number of sealing grooves 113 is 3, and the number of corresponding sealing rings 114 is also 3. From the root of the main connecting section 112 to the free end 142, the sealing grooves 113 are a first sealing groove 113a, a second sealing groove 113b, and a third sealing groove 113c, respectively. The arrangement position of the sealing groove 113 corresponds to the clamping tool used. As shown in FIG. 6, the position of the sealing groove 113 ensures that any one of the U-type tool 1, the H-type tool 2, the RF-type tool 3, the TH-type tool 4, the B-type tool 5, and the RFZ-type tool 6 can achieve sealing. Figure 3 Figure 4 ​As shown, the tooth shape of the U-shaped tool 1 can be pressed to the second sealing groove 113b and the third sealing groove 113c; Figure 5 As shown, the tooth shape of the H-shaped tool 2 can be pressed to the first sealing groove 113a, and the tooth shape in the middle can be pressed to the edge of the second sealing groove 113b; Figure 6 As shown, the tooth shape of the RF-shaped tool 3 can be pressed to the second sealing groove 113b and the third sealing groove 113c; Figure 7 As shown, the tooth shape of the TH-shaped tool 4 can be pressed to the first sealing groove 113a;

[0054] Figure 8 As shown, the tooth shape of the B-shaped tool 5 can be pressed to the first sealing groove 113a and the second sealing groove 113b;

[0055] Figure 9 As shown, the tooth shape of the RFZ-shaped tool 6 can be pressed to all the three sealing grooves 113.

[0056] Optionally, the pipe top section 111 comprises a uniform diameter part 116 and a variable diameter part 117, the annular clamping groove 102, the variable diameter part 117, the uniform diameter part 116 and the main connecting section 112 are sequentially arranged, and the outer diameter of the variable diameter part 117 gradually decreases from the annular clamping groove 102 to the uniform diameter part 116. The specific arrangement of the variable diameter part 117 can make the pipe material 7 better inserted into the bottom.

[0057] Optionally, a plurality of anti-disengagement teeth 115 are arranged on the main connecting section 112. The arrangement of the anti-disengagement teeth 115 can better prevent the pipe material 7 from disengaging from the pipe fitting body 101.

[0058] Optionally, the embedded end 141 of the pressing sleeve 140 is inwardly contracted, facilitating insertion into the positioning stop ring 120; and the free end 142 of the pressing sleeve 140 is outwardly flared, facilitating better insertion of the pipe material 7.

[0059] In summary, the clamping and pressing type connector 100 provided by the embodiment of the utility model has the following characteristics:

[0060] 1. Compared with the pipe fitting with the current leakage-proof pressing connection technology, the utility model solves the problem that the observation hole 122 is easily blocked during pipe fitting production and assembly, thereby improving the production efficiency.

[0061] 2. The square hole of the pressing sleeve 140 on the pipe joint and the wedge-shaped clamping block 121 of the stop ring are mutually buckled, which is more stable than the existing structure and is not easy to disengage.

[0062] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A crimped connector, characterized by, The pipe body, the positioning check ring, the leakage-proof compression check ring and the compression sleeve are included. The positioning check ring is clamped on the pipe body, and the leakage-proof compression check ring is clamped outside the positioning check ring. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

2. The card press connector according to claim 1, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

3. The card press connector according to claim 1, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

4. The card press connector according to claim 3, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

5. The card press connector according to claim 1, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

6. The card press connector according to claim 2, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

7. The card press connection of claim 6, wherein, The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

8. The card press connector according to claim 6, wherein The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks.

9. The card press connection of claim 6, wherein, The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. The inner wall of the positioning check ring is provided with a plurality of wedge-shaped clamping blocks. 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