Protective device for engineering machinery hose assembly

Abstract

The utility model discloses a protective device for an engineering machinery hose assembly, which belongs to the technical field of engineering machinery and comprises a pipe sleeve body, a joint core, a middle sleeve body and a spring sleeve. A first clamping groove and a plurality of second clamping grooves which are uniformly distributed are formed in the outer circumferential side of the middle sleeve body, and the spring sleeve is clamped in the first clamping groove and the second clamping grooves; a first clamping block is arranged in the first clamping groove, and a first fixing groove is formed in the outer circumferential side of the connector core. A plurality of second fixing grooves which are evenly distributed are formed in the inner circumferential side of the middle sleeve body. The pipe sleeve body, the connector core and the middle sleeve body are assembled in a split mode through the first clamping block, the first fixing groove, the second fixing groove and the fixing mechanism, the spring sleeve is clamped into the first clamping groove to lock the connector core, the assembling and replacing difficulty is reduced, the spring sleeve is clamped through the first clamping groove and the second clamping groove in the side of the outer circumference of the middle sleeve body, and the connector core is locked through the spring sleeve. The sliding of the spring sleeve is avoided, and the service life of the whole protection device is prolonged.

Description

Technical Field

[0001] The utility model relates to a protective device for an engineering machinery hose assembly, belonging to the technical field of engineering machinery. Background Art

[0002] Engineering machinery hose assemblies require corresponding protective devices to increase their service life. Generally, engineering machinery hose assemblies use protective jackets with springs to protect the hose assemblies. Due to their harsh working conditions and long-term exposure to the outdoors, the spring elasticity will weaken and the spring will easily slip off the sleeve, which will cause the integrated sleeve to be damaged. The damaged sleeve is not easy to replace and the outer rubber of the hydraulic hose assembly will be damaged and leak. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a protective device for an engineering machinery hose assembly, which adopts a split design, is easy to assemble and replace and prevents the spring from slipping off, thereby improving the service life and maintainability, and solving the problem that the current spring is easy to slip off the integrated sleeve and is difficult to replace after the sleeve is damaged.

[0004] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions: a protective device for a hose assembly of an engineering machinery, comprising: a pipe sleeve body matched with the hose assembly, a joint core matched with the hose assembly, an intermediate sleeve body used to connect the pipe sleeve body and the joint core, and a spring sleeve sleeved on the intermediate sleeve body and the pipe sleeve body; a first clamping groove and a plurality of evenly distributed second clamping grooves are provided on the outer circumferential side of the intermediate sleeve body, and the spring sleeve is clamped in the first clamping groove and the second clamping groove;

[0005] A first clamping block is provided in the first clamping groove, and a first fixing groove adapted to the first clamping block is provided on the outer circumferential side of the joint core. When the spring sleeve is clamped in the first clamping groove, the first clamping block is squeezed and deformed and embedded in the first fixing groove;

[0006] The inner circumference of the intermediate sleeve is provided with a plurality of evenly distributed second fixing grooves, and the outer circumference of the pipe sleeve is provided with a fixing mechanism adapted to the plurality of second fixing grooves. When the pipe sleeve is inserted into the intermediate sleeve, the fixing mechanism is squeezed and deformed and embedded in the second fixing grooves.

[0007] Optionally, the spring sleeve adopts a variable diameter spring, which can adapt to the change of outer diameter between the intermediate sleeve body and the pipe sleeve body, so as to facilitate insertion.

[0008] Optionally, the ends of the intermediate sleeve and the pipe sleeve away from the joint core are both chamfered to facilitate insertion of the spring sleeve.

[0009] Optionally, the intermediate sleeve is connected to the joint core and the pipe sleeve through a positioning mechanism, and the joint core and the pipe sleeve are quickly connected from both ends of the intermediate sleeve through the positioning mechanism.

[0010] Optionally, the positioning mechanism includes a first positioning strip arranged on the outer circumferential side of the joint core, a second positioning strip arranged on the outer circumferential side of the sleeve body, a first guide groove arranged at one end of the intermediate sleeve body and matched with the first positioning strip, and a second guide groove arranged at the other end of the intermediate sleeve body and matched with the second positioning strip.

[0011] Optionally, the fixing mechanism includes an elastic clamping strip arranged on the outer circumferential side of the tube sleeve body, and a plurality of second clamping blocks arranged on the clamping strip and adapted to the second fixing groove. When the elastic clamping strip is squeezed, the outer diameter of the tube sleeve body changes, so that the entire fixing mechanism can be inserted into the intermediate sleeve body following the tube sleeve body.

[0012] Optionally, the outer circumference of the tube sleeve body is further provided with a cavity for the clamping strip to deform and displace, and the clamping strip is partially located in the cavity. The cavity increases the displacement stroke of the clamping strip deformation and is more conducive to the insertion of the fixing mechanism.

[0013] Optionally, when the plurality of second clamping blocks are embedded in the second fixing grooves, one end of the clamping strip away from the joint core is located outside the intermediate sleeve, so that the clamping strip can be pressed manually when the pipe sleeve needs to be disassembled.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model reduces the difficulty of assembly and replacement by separately assembling the pipe sleeve body, the joint core and the intermediate sleeve body through the first clamping block, the first fixing groove, the second fixing groove and the fixing mechanism, and uses the spring sleeve to clamp into the first clamping groove to lock the joint core, and clamps the spring sleeve through the first clamping groove and the second clamping groove on the outer circumferential side of the intermediate sleeve body, thereby avoiding the spring sleeve from slipping off, prolonging the service life of the entire protective device, and solving the problem that the current spring is easy to slip off from the integrated sleeve body and the sleeve body is difficult to replace after being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the front view structure of a protective device for a hose assembly of an engineering machinery provided by an embodiment of the utility model;

[0017] Figure 2 It is a front view of a protective device for a hose assembly of an engineering machinery provided by an embodiment of the utility model;

[0018] Figure 3 This is a front view structural diagram of a pipe sleeve body for an engineering machinery hose assembly provided by an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of a top view of an intermediate sleeve for a hose assembly of an engineering machinery provided by an embodiment of the utility model;

[0020] Figure 5 It is a front view of a connector core for a hose assembly of an engineering machinery provided by an embodiment of the utility model;

[0021] Figure 6 The utility model is provided in an embodiment of the present invention, which is a schematic diagram of a bottom view of an intermediate sleeve body for a hose assembly of an engineering machinery.

[0022] In the figure: 1, sleeve body; 2, joint core; 3, intermediate sleeve body; 4, spring sleeve; 5, first slot; 6, second slot; 7, first positioning strip; 8, first guide slot; 9, first fixing slot; 10, first clamping block; 11, second positioning strip; 12, second guide slot; 13, second fixing slot; 14, fixing mechanism; 1401, clamping strip; 1402, second clamping block. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] Embodiment 1

[0027] like Figure 1 and Figure 2 As shown, a protective device for a hose assembly of an engineering machinery comprises: a pipe sleeve body 1 matching the hose assembly, a joint core 2 matching the hose assembly, an intermediate sleeve body 3 for connecting the pipe sleeve body 1 and the joint core 2, and a spring sleeve 4 sleeved on the intermediate sleeve body 3 and the pipe sleeve body 1. Specifically:

[0028] The outer circumference of the intermediate sleeve 3 is provided with a first slot 5 and a plurality of evenly distributed second slots 6, wherein the first slot 5 is located above the second slot 6. When the spring sleeve 4 is sleeved on the intermediate sleeve 3, the two are interference fit, and the spring sleeve 4 is partially engaged in the first slot 5 and the second slot 6, which can prevent the spring sleeve 4 from slipping off.

[0029] The intermediate sleeve body 3 is connected to the joint core 2 and the pipe sleeve body 1 respectively through a positioning mechanism, and the joint core 2 and the pipe sleeve body 1 are quickly connected from both ends of the intermediate sleeve body 3 through the positioning mechanism.

[0030] A first fixing groove 9 is provided on both the left and right sides of the outer circumference of the joint core 2, and a first clamping block 10 with elasticity adapted to the first fixing groove 9 is fixedly connected in the first clamping groove 5 of the intermediate sleeve 3. When the elastic sleeve is inserted into the first clamping groove 5, the first clamping block 10 is deformed and embedded in the first fixing groove 9 to lock the joint core 2, thereby completing the assembly and fixation of the joint core 2.

[0031] A plurality of evenly distributed second fixing grooves 13 are provided on both sides of the inner circumference of the intermediate sleeve 3, and a fixing mechanism 14 adapted to the second fixing grooves 13 is provided on both sides of the outer circumference of the pipe sleeve 1. Specifically:

[0032] The fixing mechanism 14 includes an elastic clamping strip 1401 fixedly connected to the left and right sides of the outer circumference of the tube sleeve body 1, and a plurality of second clamping blocks 1402 fixedly connected to the clamping strip 1401 and adapted to the second fixing groove 13. When the tube sleeve body 1 is inserted into the intermediate sleeve body 3, the elastic clamping strip 1401 is squeezed by the inner side of the intermediate sleeve body 3 and deformed, so that the outer diameter of the tube sleeve body 1 changes, and the tube sleeve body 1 and the fixing mechanism 14 are inserted into the intermediate sleeve body 3. When the tube sleeve body 1 is fully inserted, the bottom end of the clamping strip 1401 is still located outside the intermediate sleeve body 3, so that when the tube sleeve body 1 needs to be removed, the clamping strip 1401 can be pressed by hand to pull out the tube sleeve body 1 from the intermediate sleeve body 3; cavities are also provided on the left and right sides of the outer circumference of the tube sleeve body 1, and the clamping strip 1401 is partially located in the cavity. The cavity increases the displacement stroke of the deformation of the clamping strip 1401, which is more conducive to the insertion of the fixing mechanism 14.

[0033] The spring sleeve 4 adopts a variable diameter spring, which can adapt to the change of the outer diameter between the intermediate sleeve body 3 and the pipe sleeve body 1, so as to facilitate insertion.

[0034] In order to facilitate the insertion of the spring sleeve 4, the bottom ends of the intermediate sleeve body 3 and the pipe sleeve body 1 are both chamfered.

[0035] Embodiment 2

[0036] like Figure 1 and Figure 2 As shown, a protective device for a hose assembly of an engineering machinery comprises: a pipe sleeve body 1 matching the hose assembly, a joint core 2 matching the hose assembly, an intermediate sleeve body 3 for connecting the pipe sleeve body 1 and the joint core 2, and a spring sleeve 4 sleeved on the intermediate sleeve body 3 and the pipe sleeve body 1. Specifically:

[0037] The outer circumference of the intermediate sleeve 3 is provided with a first slot 5 and a plurality of evenly distributed second slots 6, wherein the first slot 5 is located above the second slot 6. When the spring sleeve 4 is sleeved on the intermediate sleeve 3, the two are interference fit, and the spring sleeve 4 is partially engaged in the first slot 5 and the second slot 6, which can prevent the spring sleeve 4 from slipping off.

[0038] The intermediate sleeve 3 is connected to the joint core 2 and the pipe sleeve 1 through a positioning mechanism. The joint core 2 and the pipe sleeve 1 are quickly connected from both ends of the intermediate sleeve 3 through the positioning mechanism. Specifically:

[0039] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the positioning mechanism includes a first positioning strip 7 fixed to the front and rear sides of the outer circumference of the joint core 2, a first guide slot 8 opened at the front and rear sides of the top end of the inner circumference of the intermediate sleeve 3, a second guide slot 12 opened at the front and rear sides of the bottom end of the inner circumference of the intermediate sleeve 3, and a second positioning strip 11 fixed to the front and rear sides of the outer circumference of the pipe sleeve body 1. The first guide slot 8 matches the first positioning strip 7, and the second guide slot 12 matches the second positioning strip 11. The positioning mechanism can facilitate the rapid insertion of the joint core 2 and the pipe sleeve body 1 from the top and bottom ends of the intermediate sleeve body 3 respectively.

[0040] The left and right sides of the outer circumference of the joint core 2 are both provided with first fixing grooves 9, and the first clamping block 10 having elasticity and matching with the first fixing groove 9 is fixedly connected in the first clamping groove 5 of the intermediate sleeve 3. When the elastic sleeve is clamped into the first clamping groove 5, the first clamping block 10 is deformed and embedded in the first fixing groove 9 to lock the joint core 2, thereby completing the assembly and fixation of the joint core 2;

[0041] A plurality of evenly distributed second fixing grooves 13 are provided on both sides of the inner circumference of the intermediate sleeve 3, and a fixing mechanism 14 adapted to the second fixing grooves 13 is provided on both sides of the outer circumference of the pipe sleeve 1. Specifically:

[0042] The fixing mechanism 14 includes an elastic clamping strip 1401 fixedly connected to the left and right sides of the outer circumference of the tube sleeve body 1, and a plurality of second clamping blocks 1402 fixedly connected to the clamping strip 1401 and adapted to the second fixing groove 13. When the tube sleeve body 1 is inserted into the intermediate sleeve body 3, the elastic clamping strip 1401 is squeezed by the inner side of the intermediate sleeve body 3 and deformed, so that the outer diameter of the tube sleeve body 1 changes, and the tube sleeve body 1 and the fixing mechanism 14 are inserted into the intermediate sleeve body 3. When the tube sleeve body 1 is fully inserted, the bottom end of the clamping strip 1401 is still located outside the intermediate sleeve body 3, so that when the tube sleeve body 1 needs to be removed, the clamping strip 1401 can be pressed by hand to pull out the tube sleeve body 1 from the intermediate sleeve body 3; cavities are also provided on the left and right sides of the outer circumference of the tube sleeve body 1, and the clamping strip 1401 is partially located in the cavity. The cavity increases the displacement stroke of the deformation of the clamping strip 1401, which is more conducive to the insertion of the fixing mechanism 14.

[0043] The spring sleeve 4 adopts a variable diameter spring, which can adapt to the change of the outer diameter between the intermediate sleeve body 3 and the pipe sleeve body 1, so as to facilitate insertion.

[0044] In order to facilitate the insertion of the spring sleeve 4, the bottom ends of the intermediate sleeve body 3 and the pipe sleeve body 1 are both chamfered.

[0045] How it works

[0046] During assembly:

[0047] When the spring sleeve 4 is inserted into the first groove 5, the first clamping block 10 is squeezed by the spring sleeve 4 and deformed, and the first clamping block 10 is inserted into the first fixing groove 9 on the outer side of the joint core 2, and the assembly is completed.

[0048] When disassembling:

[0049] Remove the spring sleeve 4 from the middle sleeve body 3, the first clamping block 10 rebounds from the first fixing groove 9, and the joint core 2 can be taken out. Press the bottom end of the clamping strip 1401 to make the clamping strip 1401 deform and move in the direction close to the tube sleeve body 1, and pull the tube sleeve body 1 outward to take it out.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A protective device for a hose assembly of an engineering machinery, characterized in that: include: A pipe sleeve body matching the hose assembly, a joint core matching the hose assembly, an intermediate sleeve body for connecting the pipe sleeve body and the joint core, and a spring sleeve sleeved on the intermediate sleeve body and the pipe sleeve body; The outer circumferential side of the intermediate sleeve is provided with a first clamping groove and a plurality of evenly distributed second clamping grooves, and the spring sleeve is clamped in the first clamping groove and the second clamping groove; A first clamping block is provided in the first clamping groove, and a first fixing groove adapted to the first clamping block is provided on the outer circumferential side of the joint core. When the spring sleeve is clamped in the first clamping groove, the first clamping block is squeezed and deformed and embedded in the first fixing groove; The inner circumference of the intermediate sleeve is provided with a plurality of evenly distributed second fixing grooves, and the outer circumference of the pipe sleeve is provided with a fixing mechanism adapted to the plurality of second fixing grooves. When the pipe sleeve is inserted into the intermediate sleeve, the fixing mechanism is squeezed and deformed and embedded in the second fixing grooves.

2. The protective device for a hose assembly of an engineering machinery according to claim 1, characterized in that: The spring sleeve adopts a variable diameter spring.

3. The protective device for a hose assembly of an engineering machinery according to claim 1, characterized in that: The ends of the intermediate sleeve body and the pipe sleeve body away from the joint core are both provided with chamfers.

4. The protective device for a hose assembly of an engineering machinery according to claim 1, characterized in that: The intermediate sleeve body is connected to the joint core and the pipe sleeve body respectively through a positioning mechanism, and the joint core and the pipe sleeve body are quickly connected from both ends of the intermediate sleeve body through the positioning mechanism.

5. The protective device for a hose assembly of an engineering machinery according to claim 4, characterized in that: The positioning mechanism includes a first positioning strip arranged on the outer circumference side of the joint core, a second positioning strip arranged on the outer circumference side of the sleeve body, a first guide groove arranged at one end of the intermediate sleeve body and matched with the first positioning strip, and a second guide groove arranged at the other end of the intermediate sleeve body and matched with the second positioning strip.

6. The protective device for a hose assembly of an engineering machinery according to claim 1, characterized in that: The fixing mechanism comprises an elastic clamping strip arranged on the outer circumferential side of the pipe sleeve body, and a plurality of second clamping blocks arranged on the clamping strip and matched with the second fixing grooves.

7. The protective device for a hose assembly of an engineering machinery according to claim 6, characterized in that: The outer circumference of the tube sleeve body is also provided with a cavity for the clamping strip to deform and displace, and the clamping strip is partially located in the cavity.

8. The protective device for a hose assembly of an engineering machinery according to claim 6, characterized in that: When the plurality of second clamping blocks are all embedded in the second fixing grooves, one end of the clamping strip away from the joint core is located outside the intermediate sleeve body.

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