Test bed for measuring volume expansion amount of automobile rubber and plastic hose

Abstract

The invention discloses an automobile rubber and plastic hose volume swelling capacity measurement test bed, which relates to the technical field of hose tests, and comprises a box body, a sliding plate arranged on a working panel in a sliding manner, a U-shaped piece fixedly arranged at the lower end of the sliding plate, a cross beam fixedly arranged at the upper end of the sliding plate, and a lifting mechanism arranged in the box body, the pump body is arranged in the box body; the slidable U-shaped piece is arranged on the working panel, the hose connected to the U-shaped piece is straightened and moves up and down through the lifting mechanism to remove bubbles in the hose, and the test precision is effectively improved; meanwhile, the multiple sets of U-shaped pieces are arranged to test the multiple hoses at the same time, switching lifting motion among the multiple sets of U-shaped pieces is achieved through the linkage mechanism and the switching mechanism, the applicability is effectively improved, and meanwhile the hoses of different lengths can be tested.

Description

Technical Field

[0001] The invention relates to the technical field of hose testing, in particular to a test bench for measuring volume expansion of automobile rubber and plastic hoses. Background Art

[0002] The amount of expansion of a hose is one of the important indicators that affect the quality of the hose. For example, the expansion of an automobile hydraulic brake hose affects the braking response time, braking distance, and braking efficiency. Therefore, it is necessary to reliably, accurately, and conveniently measure the expansion of such hoses. According to the hose test standard GB / T 7129-2001, it is stipulated that the hose test needs to be connected to a test bench, and a liquid of a certain pressure is injected into the hose through a pressure source, and the expansion volume is measured by opening the valve to allow the expanded liquid in the hose to rise to the measuring tube. At the same time, the standard also stipulates that bubbles in the hose sample need to be discharged during the test. In order to improve the accuracy of the test, the present application proposes an automobile rubber and plastic hose volume expansion measurement test bench that can move up and down to discharge bubbles from the hose. Summary of the invention

[0003] The invention provides a test bench for measuring volume expansion of automobile rubber and plastic hoses, aiming to solve the above-mentioned problems.

[0004] To achieve the above object, the present invention provides a test bench for measuring volume expansion of automobile rubber and plastic hoses, comprising:

[0005] A box body, on which a working panel and a filling platform are arranged;

[0006] A sliding plate, slidably arranged on the working panel;

[0007] The U-shaped member is fixedly arranged at the lower end of the sliding plate, wherein a first connecting pipe is arranged inside the U-shaped member, wherein a measuring pipe and a liquid discharge pipe are arranged on the U-shaped member, and one end of the measuring pipe and the liquid discharge pipe are respectively connected with the first connecting pipe; a liquid inlet interface and a liquid outlet interface are arranged at both ends of the U-shaped member, a first valve is arranged on the liquid inlet interface, a filling interface is arranged on the filling platform, a second valve is arranged on the filling interface, a third valve is arranged between the measuring pipe and the liquid discharge pipe on the first connecting pipe, and the liquid outlet interface is connected with the liquid discharge interface on the filling platform through an elastic spiral tube;

[0008] A crossbeam is fixedly arranged at the upper end of the sliding plate, and a second connecting pipe is arranged inside the crossbeam, and the other ends of the measuring pipe and the discharge pipe are respectively connected to the second connecting pipe;

[0009] The lifting mechanism is arranged in the box body, and the sliding plate is connected to the lifting mechanism, so that the lifting mechanism drives the sliding plate to drive the U-shaped member and the crossbeam to perform lifting movement on the working panel;

[0010] The pump body is arranged in the box body and communicated with the medium box in the box body. The filling interface is connected with the pump body through a pipeline.

[0011] Preferably, the lifting mechanism includes a driving motor, a driving screw and a slider, the driving motor is arranged in the box, the driving screw is rotatably arranged in the box, the slider is fixedly connected to the sliding plate, and the slider is threadedly connected to the driving screw. A limited sliding groove is arranged on the working panel, and both ends of the sliding plate slide in the limited sliding groove. A strip through hole is arranged on the working panel, and the slider passes through the strip through hole and is connected to the sliding plate.

[0012] Preferably, the U-shaped member includes U-shaped member 1 and U-shaped member 2, the crossbeam includes crossbeam 1 and crossbeam 2, the measuring tube includes measuring tube 1 and measuring tube 2, the discharge tube includes discharge tube 1 and discharge tube 2, the U-shaped member 1 is connected with crossbeam 1 through measuring tube 1 and discharge tube 1, and the U-shaped member 2 is connected with crossbeam 2 through measuring tube 2 and discharge tube 2; an adjusting screw is also connected between the U-shaped member 2 and crossbeam 2, the adjusting screw is transmission-connected with the driving screw through a linkage mechanism, and a switching mechanism is provided on the slider.

[0013] Preferably, the linkage mechanism includes a screw sleeve 1, a transmission gear and a screw sleeve 2. The screw sleeve 1 is rotatably disposed in the slider and is threadedly connected to the driving screw. A fixed platform is provided on the sliding plate. The screw sleeve 2 is rotatably disposed in the fixed platform, and the adjusting screw is threadedly connected to the screw sleeve 2. The transmission gear is rotatably disposed in the fixed platform, and the transmission gear is respectively engaged with the annular gears on the outer rings of the screw sleeve 1 and the screw sleeve 2.

[0014] Preferably, the switching mechanism includes a telescopic component, an articulated push rod and a locking rod. The output end of the telescopic component is provided with an insertion rod. The end surface of the screw sleeve 1 is provided with a plurality of insertion holes along the circumferential direction. The telescopic component is provided on the slider. The insertion rod is plugged into the insertion hole to lock the screw sleeve 1 in the slider. The locking rod is slidably provided on the slider. The two ends of the articulated push rod are respectively hinged to the insertion rod and the locking rod, so that the insertion rod pushes the locking rod to extend on the slider through a contraction movement to be plugged into the locking hole on the working panel. The telescopic component is a magnetic lock. Filling interface 1 and filling interface 2, as well as drainage interface 1 and drainage interface 2 are provided on the filling platform.

[0015] Compared with the prior art, it has the following beneficial effects:

[0016] The present application arranges a slidable U-shaped piece on the working panel, and relies on a lifting mechanism to straighten and move up and down the hose connected to the U-shaped piece to remove the bubbles therein, thereby effectively improving the accuracy of the test; at the same time, by arranging multiple groups of U-shaped pieces, it is possible to test multiple hoses simultaneously, and relies on a linkage mechanism and a switching mechanism to achieve switching and lifting movements between multiple groups of U-shaped pieces, which effectively improves its applicability and can also test hoses of different lengths. BRIEF 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 description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a test bench for measuring volume expansion of automotive rubber and plastic hoses in this application;

[0019] Figure 2 For this application Figure 1 A local enlarged schematic diagram;

[0020] Figure 3 A schematic diagram of the lifting mechanism for this application;

[0021] Figure 4 This is a schematic diagram of the test bench for the double U-shaped member of this application;

[0022] Figure 5 This is a schematic diagram of the keyhole and telescopic components of this application;

[0023] Figure 6 For this application Figure 5 An enlarged schematic diagram of part B;

[0024] Figure 7 This is a schematic diagram of the linkage organizations for this application;

[0025] Figure 8 A schematic diagram of the switching mechanism of this application.

[0026] Figure numerals: 1-box; 2-working panel; 21-limiting slide; 22-strip through hole; 23-locking hole; 3-filling platform; 4-sliding plate; 41-fixing platform; 5-U-shaped piece; 51-U-shaped piece 1; 52-U-shaped piece 2; 6-measuring tube; 61-measuring tube 1; 62-measuring tube 2; 7-draining tube; 71-draining tube 1; 72-draining tube 2; 8-crossbeam; 81-crossbeam 1; 82-crossbeam 2; 9-liter Lowering mechanism; 91-driving motor; 92-driving screw; 93-sliding block; 10-elastic spiral tube; 101-screw sleeve 1; 1011-jack; 102-transmission gear; 103-screw sleeve 2; 104-ring gear; 20-adjusting screw; 201-telescopic component; 202-articulated push rod; 203-locking rod; 204-insertion rod; 301-first valve; 302-second valve; 303-third valve. DETAILED DESCRIPTION

[0027] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:

[0028] Example:

[0029] like Figures 1 to 3 As shown, the present invention provides a test bench for measuring volume expansion of automobile rubber and plastic hoses, comprising:

[0030] A box body 1, on which a working panel 2 and a filling platform 3 are arranged, and baffles are arranged on both sides of the filling platform 3;

[0031] A sliding plate 4 is slidably disposed on the working panel 2 to slide and lift on the working panel;

[0032] The U-shaped member 5 is fixedly arranged at the lower end of the sliding plate 4, and a first connecting pipe is arranged therein, on which a measuring tube 6 and a liquid discharge pipe 7 are arranged, and one end of the measuring tube 6 and the liquid discharge pipe 7 are respectively connected to the first connecting pipe; both ends of the U-shaped member 5 are provided with a liquid inlet interface and a liquid outlet interface, a first valve 301 is arranged on the liquid inlet interface, a filling interface is arranged on the filling platform 3, a second valve 302 is arranged on the filling interface, the first connecting pipe is located between the measuring tube 6 and the liquid discharge pipe 7 and a third valve 303 is arranged, and the liquid outlet interface is connected to the liquid discharge interface on the filling platform 3 through an elastic spiral tube 10; the first valve 301, the second valve 302 and the third valve 303 can be manually operated during the hose test;

[0033] The crossbeam 8 is fixedly arranged at the upper end of the sliding plate 4, and a second connecting pipe is arranged therein, and the other ends of the measuring pipe 6 and the drain pipe 7 are respectively connected to the second connecting pipe;

[0034] The lifting mechanism 9 is arranged in the box body 1, and the sliding plate 4 is connected to the lifting mechanism 9, so that the lifting mechanism 9 drives the sliding plate 4 to drive the U-shaped member 5 and the crossbeam 8 to perform lifting and lowering movements on the working panel 2;

[0035] The pump body is arranged in the box body 1 and is connected to the medium box in the box body 1. The filling interface is connected to the pump body through a pipeline. An electric valve is arranged on the pipeline. The electric valve is controlled by a control unit arranged in the box body 1. The pump body is electrically connected to the control unit to control the operation of the pump body.

[0036] The lifting mechanism 9 includes a driving motor 91, a driving screw 92 and a slider 93. The driving motor 91 is arranged in the box body 1. The driving screw 92 is rotatably arranged in the box body 1. The slider 93 is fixedly connected to the sliding plate 4. The slider 93 is threadedly connected to the driving screw 92. The working panel 2 is provided with a limited slide groove 21, and both ends of the sliding plate 4 are slidably located in the limited slide groove 21.

[0037] See also Figure 2The working panel 2 of the present application is provided with a strip-shaped through hole 22 , and the slider 93 passes through the strip-shaped through hole 22 and is connected to the sliding plate 4 , so that the U-shaped member 5 follows the sliding plate 4 to perform lifting and lowering movements on the working panel 2 .

[0038] As another embodiment of the present application, Figure 4 As shown, the U-shaped member 5 of the present application includes a U-shaped member 1 51 and a U-shaped member 2 52, the cross beam 8 includes a cross beam 1 81 and a cross beam 2 82, the measuring tube 6 includes a measuring tube 1 61 and a measuring tube 2 62, the discharge tube 7 includes a discharge tube 1 71 and a discharge tube 2 72, the U-shaped member 1 51 is connected to the cross beam 1 81 through the measuring tube 1 61 and the discharge tube 1 71, and the U-shaped member 2 52 is connected to the cross beam 2 82 through the measuring tube 2 62 and the discharge tube 2 72; by setting two groups of U-shaped members 5 and related accessories, the two hoses can be tested separately, and the pump body can be controlled by the control unit to fill them with liquid separately. Furthermore, an adjusting screw is also connected between the U-shaped member 2 52 and the cross beam 2 82, and the adjusting screw is connected to the driving screw 92 through a linkage mechanism, and a switching mechanism is set on the slider 93, so that the lifting mechanism 9 can be switched by setting the switching mechanism to perform a separate lifting movement of the U-shaped member 1 51 or the U-shaped member 2 52.

[0039] See also Figure 7 The linkage mechanism of the present application includes a screw sleeve 101, a transmission gear 102 and a screw sleeve 2 103. The screw sleeve 101 is rotatably arranged in the slider 93 and is threadedly connected with the driving screw 92. A fixed platform 41 is provided on the sliding plate 4. The screw sleeve 2 103 is rotatably arranged in the fixed platform 41, and the adjusting screw is threadedly connected with the screw sleeve 2 103; the transmission gear 102 is rotatably arranged in the fixed platform 41, and the transmission gear 102 is respectively meshed with the ring gear 104 of the outer ring of the screw sleeve 101 and the screw sleeve 2 103, so that the rotation of the screw sleeve 101 drives the transmission gear 102 to drive the screw sleeve 2 103 to rotate, so that the adjusting screw threadedly connected to the screw sleeve 2 103 drives the U-shaped member 2 52 to move up and down on the working panel 2 under the rotation of the screw sleeve 2 103.

[0040] See also Figures 5 to 8The switching mechanism of the present application includes a telescopic component 201, a hinged push rod 202 and a locking rod 203. The output end of the telescopic component 201 is provided with an insertion rod 204. A plurality of insertion holes 1011 are circumferentially provided on the end surface of the screw sleeve 101. The telescopic component 201 is provided on the slider 93, and the insertion rod 204 is plugged into the insertion hole 1011 to lock the screw sleeve 101 in the slider 93; the locking rod 203 is slidably provided on the slider 93, and the two ends of the hinged push rod 202 are respectively hinged to the insertion rod 204 and the locking rod 203, so that the insertion rod 204 pushes the locking rod 203 to extend on the slider 93 through a contraction movement to be plugged into the locking hole 23 on the working panel 2. When the screw sleeve 101 is locked, the driving screw 92 rotates to drive the slider 93 to perform lifting motion on the back of the working panel 2. When the screw sleeve 101 is unlocked, it can rotate in the slider 93. At this time, the locking rod 203 is plugged into the lock hole 23 on the working panel 2 to lock the slider 93. When the driving screw 92 rotates, it drives the screw sleeve 101 to rotate, so that it drives the screw sleeve 2 103 to rotate through the ring gear 104 and the transmission gear 102, so as to drive the adjusting screw to perform lifting motion on the working panel 2. Further, the U-shaped member 1 51 and the cross beam 1 81 of the present application are provided with limiting grooves, and the U-shaped member 2 52 and the cross beam 2 82 are provided with limiting strips slidably connected with the limiting grooves, so that the U-shaped member 2 52 is limited by setting the limiting grooves and the limiting strips, so that it can stably perform lifting motion on the working panel 2.

[0041] The telescopic component 201 is a magnetic lock or an electric push rod. When it is a magnetic lock, the magnetic lock includes an iron rod with a wire wrapped around it, a permanent magnet and a spring. When the wire is energized, the iron rod is magnetized to attract the permanent magnet, thereby causing the insertion rod 204 connected to the end of the permanent magnet to contract and disengage from the socket 1011 on the screw sleeve 101; when the wire is powered off, the iron rod is demagnetized to cause the permanent magnet to return to its position under the action of the spring to push the insertion rod 204 to extend and plug into the socket 1011, thereby locking the screw sleeve 101 in the slider 93.

[0042] See also Figure 4 The filling station 3 of the present application is provided with a filling interface 1 and a filling interface 2, as well as a drain interface 1 and a drain interface 2, so as to connect two hoses for testing. Furthermore, the filling interface is connected to the pump body through a three-way valve to switch the filling interface 1 and the filling interface 2 to inject liquid.

[0043] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A test bench for measuring volume expansion of automobile rubber and plastic hoses, characterized in that: include: A box body (1), wherein a working panel (2) and a filling platform (3) are arranged on the box body (1); A sliding plate (4) slidably disposed on the working panel (2); A U-shaped member (5) is fixedly arranged at the lower end of the sliding plate (4), wherein a first connecting pipe is arranged therein, and a measuring tube (6) and a liquid discharge pipe (7) are arranged thereon, and one end of the measuring tube (6) and the liquid discharge pipe (7) are respectively connected to the first connecting pipe; a liquid inlet interface and a liquid outlet interface are arranged at both ends of the U-shaped member (5), a first valve (301) is arranged on the liquid inlet interface, a filling interface is arranged on the filling platform (3), a second valve (302) is arranged on the filling interface, a third valve (303) is arranged on the first connecting pipe between the measuring tube (6) and the liquid discharge pipe (7), and the liquid outlet interface is connected to the liquid discharge interface on the filling platform (3) through an elastic spiral tube (10); A crossbeam (8) is fixedly arranged at the upper end of the sliding plate (4), and a second connecting pipe is arranged therein, and the other ends of the measuring tube (6) and the drain pipe (7) are respectively connected to the second connecting pipe; A lifting mechanism (9) is arranged in the box body (1), and the sliding plate (4) is connected to the lifting mechanism (9), so that the lifting mechanism (9) drives the sliding plate (4) to drive the U-shaped member (5) and the crossbeam (8) to perform lifting movement on the working panel (2); The pump body is arranged in the box body (1) and is connected to the medium box in the box body (1); the filling interface is connected to the pump body through a pipeline.

2. The automotive rubber and plastic hose volume expansion test bench according to claim 1 is characterized in that: The lifting mechanism (9) comprises a driving motor (91), a driving screw rod (92) and a slider (93); the driving motor (91) is arranged in the box body (1); the driving screw rod (92) is rotatably arranged in the box body (1); the slider (93) is fixedly connected to the sliding plate (4); and the slider (93) is threadedly connected to the driving screw rod (92).

3. The automotive rubber and plastic hose volume expansion test bench according to claim 2, characterized in that: The working panel (2) is provided with a limiting sliding groove (21), and the two ends of the sliding plate (4) are slidably located in the limiting sliding groove (21).

4. The automotive rubber and plastic hose volume expansion test bench according to claim 3, characterized in that: The working panel (2) is provided with a strip-shaped through hole (22), and the sliding block (93) passes through the strip-shaped through hole (22) and is connected to the sliding plate (4).

5. The automotive rubber and plastic hose volume expansion test bench according to claim 2, characterized in that: The U-shaped member (5) comprises a U-shaped member 1 (51) and a U-shaped member 2 (52); the cross beam (8) comprises a cross beam 1 (81) and a cross beam 2 (82); the measuring tube (6) comprises a measuring tube 1 (61) and a measuring tube 2 (62); the liquid discharge tube (7) comprises a liquid discharge tube 1 (71) and a liquid discharge tube 2 (72); the U-shaped member 1 (51) is connected to the cross beam 1 (81) via the measuring tube 1 (61) and the liquid discharge tube 1 (71); the U-shaped member 2 (52) is connected to the cross beam 2 (82) via the measuring tube 2 (62) and the liquid discharge tube 2 (72); an adjusting screw is further connected between the U-shaped member 2 (52) and the cross beam 2 (82); the adjusting screw is transmission-connected to the driving screw (92) via a linkage mechanism; and a switching mechanism is provided on the slider (93).

6. The automotive rubber and plastic hose volume expansion test bench according to claim 5, characterized in that: The linkage mechanism comprises a screw sleeve 1 (101), a transmission gear (102) and a screw sleeve 2 (103); the screw sleeve 1 (101) is rotatably arranged in the slider (93) and is threadedly connected to the driving screw (92); a fixed platform (41) is arranged on the sliding plate (4); the screw sleeve 2 (103) is rotatably arranged in the fixed platform (41); the adjusting screw is threadedly connected to the screw sleeve 2 (103); the transmission gear (102) is rotatably arranged in the fixed platform (41); the transmission gear (102) is respectively meshed with the ring gears (104) on the outer rings of the screw sleeve 1 (101) and the screw sleeve 2 (103).

7. The automotive rubber and plastic hose volume expansion test bench according to claim 6, characterized in that: The switching mechanism comprises a telescopic component (201), an articulated push rod (202) and a locking rod (203); an insertion rod (204) is arranged at the output end of the telescopic component (201); a plurality of insertion holes (1011) are arranged on the end surface of the screw sleeve (101) along the circumferential direction; the telescopic component (201) is arranged on the slider (93); the insertion rod (204) is plugged into the insertion holes (1011) to lock the screw sleeve (101) in the slider (93); the locking rod (203) is slidably arranged on the slider (93); the two ends of the articulated push rod (202) are respectively articulated with the insertion rod (204) and the locking rod (203), so that the insertion rod (204) pushes the locking rod (203) to extend on the slider (93) through a contraction movement to plug into the locking hole (23) on the working panel (2).

8. The automotive rubber and plastic hose volume expansion test bench according to claim 7, characterized in that: The telescopic component (201) is a magnetic lock.

9. The automotive rubber and plastic hose volume expansion test bench according to claim 6, characterized in that: The filling platform (3) is provided with a filling interface 1 and a filling interface 2, as well as a drainage interface 1 and a drainage interface 2.

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