A hose mounting and demounting tool suitable for narrow spaces and a working method thereof

Abstract

The application provides a hose mounting and dismounting tool suitable for narrow space, which comprises a hose clamping main clamp and a buckle ring opening sub clamp, the hose clamping main clamp comprises a main clamp, one side of the main clamp is provided with a transmission clamp sleeve, and a cylindrical pin is fixedly arranged on the outer edge of the transmission clamp sleeve; the buckle ring opening sub clamp comprises a sub clamp corresponding to the size of the main clamp, one side of the sub clamp is provided with a guide clamp sleeve, a spiral guide groove extending in the direction perpendicular to the sub clamp is formed in the guide clamp sleeve, and the end of the spiral guide groove away from the sub clamp is open. The application is used for pneumatic / hydraulic pipeline assembly in narrow space, and can complete the connection and dismounting of the hose and the quick connector, solve the problem of difficult installation and dismounting of the pneumatic / hydraulic hose in narrow space with limited space, and greatly facilitate the installation and dismounting of the hose in narrow space.

Description

Technical Field

[0001] This invention belongs to the field of pipeline connection and installation technology, specifically relating to a tool for installing and disassembling flexible hoses in confined spaces and its working method. Background Technology

[0002] Currently, many pneumatic / hydraulic products require the installation and removal of numerous pneumatic / hydraulic hoses and quick connectors. However, the space for hose installation and removal is limited, mostly in narrow spaces where it is impossible to reach in and operate. Therefore, a set of tools is urgently needed to complete the installation and removal of hoses in such narrow spaces.

[0003] Chinese patent application CN202320068638.3 discloses a hose installation and disassembly tool with a large range of motion, which is unsuitable for installing and disassembling hoses in confined spaces. Furthermore, due to the lack of limiters, the force applied is uncontrollable, easily leading to excessive force, collisions, and damage to products or injuries. Chinese patent application CN202123006961.8 discloses a device for installing and disassembling hydraulic hoses, which has a complex structure and large size, primarily used for clamping large hydraulic oil pipes and high-pressure hoses, and is unsuitable for connecting and disassembling hoses in confined spaces. Chinese patent application CN201920329556.3 discloses a hose connector locking tool for confined spaces for fastening. Fixed hose connectors cannot achieve hose connection and disassembly; a pipeline installation auxiliary tool disclosed in Chinese patent application No. CN201922000226.2 is only used to support the hose and assist workers in completing hose connection, but does not have hose connection and disassembly functions; a pipeline installation auxiliary tool disclosed in Chinese patent application No. CN201710886685.8 is suitable for open working spaces such as high altitudes, but not for hose connection and disassembly in confined spaces; a special disassembly tool for quick coupling of high-pressure hose of hydraulic support disclosed in Chinese patent application No. CN201410091613.0 requires connection and disassembly of the hose along the hose axis, requires a large space, and is not suitable for hose installation and disassembly in confined spaces. Summary of the Invention

[0004] To address the problems existing in the prior art, this application proposes a hose installation and removal tool suitable for confined spaces, comprising a main hose clamping clamp and a secondary clamp with a snap-ring opening mechanism, characterized in that:

[0005] The hose clamping main clamp includes a main clamp, and a transmission sleeve is provided on one side of the main clamp. A cylindrical pin is fixed on the outer edge of the transmission sleeve.

[0006] The buckle ring opening auxiliary clamp includes an auxiliary clamp corresponding to the size of the main clamp. A guide sleeve is provided on one side of the auxiliary clamp. A spiral guide groove extending perpendicular to the direction of the auxiliary clamp is provided on the guide sleeve. The spiral guide groove is open at the end away from the auxiliary clamp.

[0007] When the main clamp for holding the hose is assembled with the secondary clamp for opening the buckle ring, the transmission sleeve is inserted into the guide sleeve, and the cylindrical pin is inserted into the spiral guide groove on the guide sleeve and fixed on the transmission sleeve.

[0008] Furthermore, the main clamp includes a main upper clamping ring and a main lower clamping ring, and the transmission sleeve includes a transmission upper sleeve and a transmission lower sleeve; the transmission upper sleeve and the transmission lower sleeve are respectively fixed on the same side of the main upper clamping ring and the main lower clamping ring, and are respectively coaxial with the main upper clamping ring and the main lower clamping ring.

[0009] Furthermore, the secondary clamp includes an upper secondary clamping ring and a lower secondary clamping ring, and the guide sleeve includes an upper guide sleeve and a lower guide sleeve; the upper guide sleeve and the lower guide sleeve are respectively fixed on the same side of the upper secondary clamping ring and the lower secondary clamping ring, and are respectively coaxial with the upper secondary clamping ring and the lower secondary clamping ring.

[0010] Furthermore, the thickness of the main clamp for holding the hose and the secondary clamp for opening the buckle ring is 3~5mm, and the handle length of the main clamp and the secondary clamp is four-fifths of the overall length of the clamp.

[0011] Furthermore, the inner diameter of the main clamping ring is 0.3~0.5mm smaller than the outer diameter of the hose, and the inner diameter of the secondary clamping ring is 0.3~0.5mm larger than the outer diameter of the hose.

[0012] Furthermore, the cylindrical pin has a radial circular hole, and a cotter pin passes through the circular hole.

[0013] The working method of the above-mentioned hose installation and disassembly tool includes the following steps:

[0014] During installation, the hose installation end passes through the main clamping ring of the hose clamping main clamp and through the buckle ring to open the auxiliary clamp. The hose clamping main clamp clamps the hose and extends it into the narrow installation space. The main clamp and auxiliary clamp rotate inward relative to each other, and the transmission sleeve rotates along the spiral guide groove. The lateral force generated inserts the hose into the quick connector, completing the hose connection.

[0015] During disassembly, the main clamp and the snap ring push open the secondary clamp, which extends into the narrow space and clamps the hose. The snap ring pushes open the secondary clamp's end face, which is pressed tightly against the snap ring end face. The main clamp and the secondary clamp rotate outward relative to each other, and the transmission sleeve rotates along the spiral guide groove. The lateral force generated by the snap ring pushing open the secondary clamp pushes the snap ring open, and the lateral force generated by the main clamp pulls the hose outward, completing the disassembly of the hose.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention is used for the assembly of pneumatic / hydraulic pipelines in confined spaces, completing the connection and disassembly of hoses and quick connectors. It solves the problem of difficult installation and disassembly of pneumatic / hydraulic hoses in confined spaces due to limited space, and greatly simplifies the installation and disassembly of hoses in confined spaces. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the operation of the hose installation and disassembly tool of the present invention;

[0019] Figure 2 This is a schematic diagram of the hose installation and removal tool of the present invention;

[0020] Figure 3 This is a schematic diagram of the main clamp for holding flexible hoses according to the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the snap ring opening auxiliary clamp of the present invention;

[0022] Figure 5 This is a schematic diagram of the flexible hose and quick-connect plug of the present invention.

[0023] Attached figures and their names: 1. Hose, 2. Main clamp, 21. Main upper clamp, 22. Main lower clamp, 3. Drive sleeve, 31. Drive upper clamp, 32. Drive lower clamp, 4. Cotter pin, 5. Cylindrical pin, 6. Guide sleeve, 61. Guide upper clamp, 62. Guide lower clamp, 7. Quick connector, 71. Snap ring, 8. Secondary clamp, 81. Secondary upper clamp, 82. Secondary lower clamp. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figures 1-4 As shown, the hose installation and removal tool proposed in this invention, suitable for confined spaces, includes a main hose clamp and a secondary clamp with a locking ring for opening.

[0026] The hose clamping main clamp consists of a main clamp 2, a transmission sleeve 3, a cotter pin 4, and a cylindrical pin 5. The main clamp 2 includes a main upper clamping ring 21 and a main lower clamping ring 22. The inner diameter of the main clamping ring is equal to the inner diameter of the transmission sleeve 3. The transmission sleeve 3 includes a transmission upper clamping sleeve 31 and a transmission lower clamping sleeve 32. The transmission upper clamping sleeve 31 and the transmission lower clamping sleeve 32 are respectively fixed to the side end faces of the main upper clamping ring 21 and the main lower clamping ring 22 of the main clamp 2, and are coaxial with the main upper clamping ring 21 and the main lower clamping ring 22, respectively. The cylindrical pin 5 is respectively fixed to the transmission upper clamping sleeve 31 and the transmission lower clamping sleeve 32. The cotter pin 4 passes through the round hole on the cylindrical pin 5 and is used to connect the hose clamping main clamp and the locking ring to open the auxiliary clamp, so as to prevent the hose clamping main clamp and the locking ring from disengaging during the operation of opening the auxiliary clamp.

[0027] The snap ring opening auxiliary clamp consists of an auxiliary clamp 8 and a guide sleeve 6. The auxiliary clamp includes an upper auxiliary clamping ring 81 and a lower auxiliary clamping ring 82. The guide sleeve 6 includes an upper guide sleeve 61 and a lower guide sleeve 62. Both the upper guide sleeve 61 and the lower guide sleeve 62 have spiral guide grooves. The upper guide sleeve 61 and the lower guide sleeve 62 are fixed to the side end faces of the upper auxiliary clamping ring 81 and the lower auxiliary clamping ring 82 of the auxiliary clamp 8, respectively, and are coaxial with the upper auxiliary clamping ring 81 and the lower auxiliary clamping ring 82, respectively.

[0028] When assembling the hose clamping main clamp and the snap ring opening auxiliary clamp, the transmission sleeve 3 is inserted into the guide sleeve 6, the cylindrical pin 5 passes through the spiral guide groove on the guide sleeve 6 and is fixed on the transmission sleeve 3, and the cotter pin 4 passes through the round hole on the cylindrical pin 5 to prevent detachment.

[0029] The main hose clamp is used to clamp the installation end of the hose 1, and the secondary clamp with snap ring push-open is used to push open the snap ring 71 of the quick connector 7. The transmission sleeve 3, the cylindrical pin 5 on the main hose clamp and the guide sleeve 6 on the secondary clamp with snap ring push-open are used to generate lateral force. When installing the hose, the main hose clamp can cause the main hose clamp to clamp the hose 1 and insert it into the quick connector 7. When disassembling, the secondary clamp with snap ring push-open can push open the snap ring 71 and cause the main hose clamp to pull the hose 1 outward.

[0030] The thickness of the main clamp for holding the hose and the secondary clamp for opening the buckle ring is 3~5mm. The handle length of the main clamp 2 and the secondary clamp 8 is 4 / 5 of the overall length of the clamp.

[0031] The inner diameter of the main clamping ring of the hose clamping main clamp is 0.3~0.5mm smaller than the outer diameter of hose 1, which makes it easier to clamp hose 1. In addition, the inner surface of the main clamping ring is smooth and burr-free, so as to avoid scratching the hose.

[0032] The inner diameter of the buckle ring of the secondary clamp is 0.3~0.5mm larger than the outer diameter of the hose 1;

[0033] Reference Figure 5 The working process of this application is as follows:

[0034] During installation, the installation end of the hose 1 passes through the main clamping ring of the hose clamping main clamp and exits through the buckle ring to open the auxiliary clamp. The hose clamping main clamp clamps the hose 1 and extends it into the narrow installation space. The main clamp and the auxiliary clamp rotate inward relative to each other, and the transmission sleeve 3 rotates along the spiral guide groove. The lateral force generated inserts the hose 1 into the quick connector 7, completing the connection of the hose 1.

[0035] During disassembly, the main clamp and the snap ring push open the auxiliary clamp, which extends into the narrow space and clamps the hose 1. The snap ring pushes open the auxiliary clamp's auxiliary clamp end face 801, which is in close contact with the snap ring end face 701. The main clamp and auxiliary clamp rotate outward relative to each other, and the transmission sleeve rotates along the spiral guide groove. The lateral force generated by the snap ring pushing open the auxiliary clamp pushes open the snap ring, and the lateral force generated by the main clamp pulls the hose outward, thus completing the disassembly of the hose.

[0036] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope of the present invention.

Claims

1. A hose installation and removal tool suitable for confined spaces, comprising a main hose clamping clamp and a secondary clamping clamp with a snap ring, characterized in that: The hose clamping main clamp includes a main clamp, and a transmission sleeve is provided on one side of the main clamp. A cylindrical pin is fixed on the outer edge of the transmission sleeve. The buckle ring opening auxiliary clamp includes an auxiliary clamp corresponding to the size of the main clamp. A guide sleeve is provided on one side of the auxiliary clamp. A spiral guide groove extending perpendicular to the direction of the auxiliary clamp is provided on the guide sleeve. The spiral guide groove is open at the end away from the auxiliary clamp. When the main clamp for holding the hose is assembled with the secondary clamp for opening the buckle ring, the transmission sleeve is inserted into the guide sleeve, and the cylindrical pin is inserted into the spiral guide groove on the guide sleeve and fixed on the transmission sleeve.

2. The flexible hose installation and disassembly tool for confined spaces according to claim 1, characterized in that: The main clamp includes an upper main clamping ring and a lower main clamping ring, and the transmission sleeve includes an upper transmission sleeve and a lower transmission sleeve. The upper transmission sleeve and the lower transmission sleeve are respectively fixed on the same side of the upper main clamping ring and the lower main clamping ring, and are coaxial with the upper main clamping ring and the lower main clamping ring, respectively.

3. The flexible hose installation and disassembly tool suitable for confined spaces according to claim 2, characterized in that: The auxiliary clamp includes an upper auxiliary clamping ring and a lower auxiliary clamping ring, and the guide sleeve includes an upper guide sleeve and a lower guide sleeve; the upper guide sleeve and the lower guide sleeve are respectively fixed on the same side of the upper auxiliary clamping ring and the lower auxiliary clamping ring, and are respectively coaxial with the upper auxiliary clamping ring and the lower auxiliary clamping ring.

4. The flexible hose installation and removal tool suitable for confined spaces according to claim 1, characterized in that: The thickness of the main clamp for holding the hose and the secondary clamp for opening the buckle ring is 3~5mm, and the handle length of the main clamp and the secondary clamp is four-fifths of the overall length of the clamp.

5. The flexible hose installation and removal tool suitable for confined spaces according to claim 1, characterized in that: The inner diameter of the main clamping ring is 0.3~0.5mm smaller than the outer diameter of the hose, and the inner diameter of the secondary clamping ring is 0.3~0.5mm larger than the outer diameter of the hose.

6. The flexible hose installation and removal tool for confined spaces according to claim 1, characterized in that: The cylindrical pin has a radial circular hole, and a cotter pin passes through the circular hole.

7. A method for operating a hose installation and disassembly tool as described in any one of claims 1-6, characterized in that, Includes the following steps: During installation, the hose installation end passes through the main clamping ring of the hose clamping main clamp and through the buckle ring to open the auxiliary clamp. The hose clamping main clamp clamps the hose and extends it into the narrow installation space. The main clamp and auxiliary clamp rotate inward relative to each other, and the transmission sleeve rotates along the spiral guide groove. The lateral force generated inserts the hose into the quick connector, completing the hose connection. During disassembly, the main clamp and the snap ring push open the secondary clamp, which extends into the narrow space and clamps the hose. The snap ring pushes open the secondary clamp's end face, which is pressed tightly against the snap ring end face. The main clamp and the secondary clamp rotate outward relative to each other, and the transmission sleeve rotates along the spiral guide groove. The lateral force generated by the snap ring pushing open the secondary clamp pushes the snap ring open, and the lateral force generated by the main clamp pulls the hose outward, completing the disassembly of the hose.

Images