Pressure-adjustable rocker arm device and windscreen wiper rocker arm pressure test system

Abstract

The utility model relates to a pressure-adjustable rocker arm device and a wiper rocker arm pressure test system. The rocker arm device comprises a first rocker arm unit, a second rocker arm unit, an elastic unit, a first adjusting unit and a second adjusting unit. The first end of the first rocker arm unit is detachably connected with the interface structure; the second rocker arm unit is hinged to the second end of the first rocker arm unit; the elastic unit is arranged at the side part of the first rocker arm unit; the first adjusting unit is arranged at the second end of the elastic unit and is in sliding connection with the first rocker arm unit; the first end of the second adjusting unit is movably connected with the first adjusting unit, and the second end of the second adjusting unit is in limiting connection with the second rocker arm unit. The rocker arm adjusting device has the advantages that by arranging the first adjusting unit movably connected with the first rocker arm unit and the second adjusting unit slidably connected with the second rocker arm unit, the problems that the management cost is increased, the debugging efficiency is low and the like due to the fact that too many rocker arm types exist and pressure springs are fixed and cannot adjust pressure are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wiper testing, in particular to a rocker arm device with adjustable pressure and a windshield wiper rocker arm pressure testing system. Background Art

[0002] Different models of wiper rocker arms have different types, and the pressure spring of each rocker arm is fixed, and the spring pressure cannot be adjusted. If you need to test multiple rocker arms, you need to purchase multiple types of rocker arms, which is costly. At the same time, when testing different rocker arms, you need to constantly replace the rocker arms, which reduces the testing efficiency.

[0003] At present, there is no effective solution to the problems in the related technology, such as too many types of rocker arms, the inability to adjust the pressure of the fixed pressure spring, which leads to increased management costs and low debugging efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a rocker arm device with adjustable pressure and a wiper rocker arm pressure testing system in view of the deficiencies in the prior art, so as to solve the problems existing in the related art that there are too many types of rocker arms, the pressure springs are fixed and the pressure cannot be adjusted, resulting in increased management costs and low debugging efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, a rocker arm device with adjustable pressure is provided, comprising:

[0007] A first rocker arm unit, wherein a first end of the first rocker arm unit is transmission-connected to the wiper test bench and is used for rotating under the action of the wiper test bench;

[0008] a second rocker arm unit, wherein a first end of the second rocker arm unit is rotatably connected to a second end of the first rocker arm unit, and the second end of the second rocker arm unit is detachably connected to an interface structure for mounting a wiper structure;

[0009] an elastic unit, wherein the elastic unit is arranged on the second rocker arm unit, and a second end of the elastic unit is detachably connected to the second rocker arm unit, and is used to provide pressure between the wiper structure and the windshield to the second rocker arm unit;

[0010] A first adjusting unit, wherein the first adjusting unit is movably disposed at the second end of the first rocker arm unit, and the first end of the first adjusting unit is position-limitingly connected to the first rocker arm unit;

[0011] A second adjusting unit, wherein the first end of the second adjusting unit is movably connected to the second end of the first adjusting unit, and the second end of the second adjusting unit is detachably connected to the first end of the elastic unit, and is used to adjust the angle between the first rocker arm unit and the second rocker arm unit to adjust the pressure between the wiper structure and the windshield.

[0012] In some embodiments, the first rocker arm unit comprises:

[0013] a first rocker arm element;

[0014] a first mounting element, which is disposed at a first end of the first rocker arm element and is transmission-connected to the wiper test bench, and is used for driving the first rocker arm element to rotate under the action of the wiper test bench;

[0015] A first rotating element, the first rotating element is arranged at the second end of the first rocker arm element and is hinged to the second rocker arm unit;

[0016] A first connecting element is arranged at the second end of the first rocker arm element and is movably connected and limit-connected with the first adjusting unit.

[0017] In some embodiments, the second rocker arm unit includes:

[0018] a second rocker arm element, the second rocker arm element being rotatably disposed at a second end of the first rocker arm unit, the second end of the second rocker arm element being detachably connected to the interface structure for mounting a wiper structure;

[0019] a second rotating element, the second rotating element being disposed at a first end of the second rocker arm element and being hinged to the first rocker arm unit;

[0020] a second connecting element, the second connecting element being disposed on the second rocker arm element and being detachably connected to the second end of the elastic unit;

[0021] A first sliding element is disposed at a first end of the second rocker arm element and is slidably connected to the second adjusting unit.

[0022] In some of the embodiments, the elastic unit comprises:

[0023] an elastic element, the elastic element being arranged on the second rocker arm unit and being used for providing pressure between the wiper structure and the windshield to the second rocker arm unit;

[0024] a third connecting element, the third connecting element being disposed at the second end of the elastic element and being detachably connected to the second rocker arm unit;

[0025] A fourth connecting element, wherein the fourth connecting element is arranged at the first end of the elastic element and is detachably connected to the second end of the second adjusting unit.

[0026] In some embodiments, the first adjusting unit includes:

[0027] a first adjusting element, wherein the first adjusting element is movably disposed at the second end of the first rocker arm unit, the first end of the first adjusting unit is movably connected to the first rocker arm unit, and the second end of the first adjusting unit is movably connected to the first end of the second adjusting unit;

[0028] A limiting element is arranged at the first end of the first adjusting element and is limitedly connected to the first rocker arm unit.

[0029] In some embodiments, the first adjusting unit further includes:

[0030] A buffer element is disposed between the limiting element and the first rocker arm unit to prevent the limiting element and the first rocker arm unit from deforming due to friction.

[0031] In some embodiments, the second adjusting unit includes:

[0032] a second sliding element, the second sliding element being slidably disposed at a first end of the second rocker arm unit;

[0033] a second adjusting element, the second adjusting element being disposed at a first end of the second sliding element and movably connected to a second end of the first adjusting unit;

[0034] A fifth connecting element, wherein the fifth connecting element is disposed at the second end of the second sliding element and is detachably connected to the first end of the elastic unit.

[0035] In some of the embodiments, it also includes:

[0036] An anti-slip unit is arranged inside the second rocker arm unit and located at the second end of the second adjusting unit, and is used to prevent the second adjusting unit from being separated from the first adjusting unit.

[0037] In a second aspect, a system is provided, comprising:

[0038] The rocker arm device as described in the first aspect;

[0039] An interface structure, the interface structure being detachably connected to the second end of the second rocker arm unit of the rocker arm device and the wiper respectively;

[0040] A pressure sensing device is provided on the wiper and is used to test the pressure between the wiper and the windshield.

[0041] In some embodiments, the pressure sensing device comprises:

[0042] A pressure sensing unit, which is arranged on the wiper and is used to test the pressure between the wiper and the windshield;

[0043] A display unit is connected to the pressure sensing unit and is used to display the pressure value detected by the pressure sensing unit.

[0044] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0045] The utility model discloses a rocker arm device with adjustable pressure and a wiper rocker arm pressure testing system. By providing a first adjusting unit movably connected to the first rocker arm unit and a second adjusting unit slidably connected to the second rocker arm unit, the angle between the first rocker arm unit and the second rocker arm unit can be precisely adjusted by twisting the first adjusting unit, thereby solving the problems of too many types of rocker arms, the inability to adjust the pressure of fixed pressure springs, and the increased management cost and low debugging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic diagram of a rocker arm device with adjustable pressure according to an embodiment of the utility model;

[0047] Figure 2 is a schematic diagram of a first rocker arm unit according to an embodiment of the utility model;

[0048] Figure 3 is a schematic diagram of a second rocker arm unit according to an embodiment of the utility model;

[0049] Figure 4 is a schematic diagram of an elastic unit according to an embodiment of the utility model;

[0050] Figure 5 is a schematic diagram of a first adjustment unit according to an embodiment of the utility model;

[0051] Figure 6 is a schematic diagram of a second adjustment unit according to an embodiment of the utility model;

[0052] Figure 7 is a schematic diagram of a wiper rocker arm pressure testing system according to an embodiment of the utility model;

[0053] Figure 8 is a schematic diagram of an interface structure according to an embodiment of the utility model;

[0054] Fig. 9 is a schematic diagram of a pressure sensing device according to an embodiment of the utility model.

[0055] The accompanying drawings are numerals 100, rocker arm device;

[0056] 110, first rocker arm unit; 111, first rocker arm element; 112, first mounting element; 113, first rotating element; 114, first connecting element;

[0057] 120, second rocker arm unit; 121, second rocker arm element; 122, second rotating element; 123, second connecting element; 124, first sliding element;

[0058] 130, elastic unit; 131, elastic element; 132, third connecting element; 133, fourth connecting element;

[0059] 140. First adjusting unit; 141. First adjusting element; 142. Limiting element; 143. Buffer element;

[0060] 150, second adjusting unit; 151, second sliding element; 152, second adjusting element; 153, fifth connecting element;

[0061] 160. Anti-slip unit;

[0062] 200, interface structure;

[0063] 300, pressure sensing device; 310, pressure sensing unit; 320, display unit;

[0064] A. Wipers. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0066] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0067] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0068] Example 1

[0069] This embodiment relates to a rocker arm device with adjustable pressure of the utility model.

[0070] An illustrative embodiment of the present utility model is as follows: Figure 1 As shown, a rocker arm device 100 with adjustable pressure includes a first rocker arm unit 110 , a second rocker arm unit 120 , an elastic unit 130 , a first adjusting unit 140 and a second adjusting unit 150 . Among them, the first end of the first rocker arm unit 110 is transmission-connected to the wiper test bench for rotation under the action of the wiper test bench; the first end of the second rocker arm unit 120 is rotationally connected to the second end of the first rocker arm unit 110, and the second end of the second rocker arm unit 120 is detachably connected to the interface structure for installing the wiper structure; the elastic unit 130 is arranged on the second rocker arm unit 120, and the second end of the elastic unit 130 is detachably connected to the second rocker arm unit 120, for providing the second rocker arm unit 120 with pressure between the wiper structure and the windshield; the first adjusting unit 140 is movably arranged on the second end of the first rocker arm unit 110, and the first end of the first adjusting unit 140 is limitedly connected to the first rocker arm unit 110; the first end of the second adjusting unit 150 is movably connected to the second end of the first adjusting unit 140, and the second end of the second adjusting unit 150 is detachably connected to the first end of the elastic unit 130, for adjusting the angle between the first rocker arm unit 110 and the second rocker arm unit 120 to adjust the pressure between the wiper structure and the windshield.

[0071] like Figure 2 As shown, the first rocker arm unit 110 includes a first rocker arm element 111, a first mounting element 112, a first rotating element 113 and a first connecting element 114. The first mounting element 112 is disposed at the first end of the first rocker arm element 111 and is transmission-connected to the wiper test bench, and is used to drive the first rocker arm element 111 to rotate under the action of the wiper test bench; the first rotating element 113 is disposed at the second end of the first rocker arm element 111 and is hinged to the second rocker arm unit 120; the first connecting element 114 is disposed at the second end of the first rocker arm element 111 and is movably connected and limit-connected to the first adjustment unit 140.

[0072] In some of the embodiments, the cross section of the first rocker arm element 111 is U-shaped. Specifically, the first rocker arm element 111 includes a mounting block, a first bottom plate and two first side plates. The mounting block is provided with a first mounting element 112; the first bottom plate is provided at the bottom of the front end of the mounting block and connected to the mounting block, and the second end of the bottom plate is provided with a first connecting element 114; the two first side plates are symmetrically provided at both sides of the front end of the mounting block and are respectively connected to the mounting block and the first bottom plate, and the second end of the first side plate is provided with a first rotating element 113.

[0073] In some embodiments, the first rocker arm element 111 is a windshield wiper rocker arm mounted on a vehicle.

[0074] In some of the embodiments, the connection method between the first mounting element 112 and the wiper test bench belongs to the prior art and will not be described in detail here.

[0075] In some embodiments, the cross-section of the first mounting element 112 is circular.

[0076] In some embodiments, the first mounting element 112 is a first mounting hole.

[0077] In some embodiments, there are two first rotating elements 113. The two first rotating elements 113 are symmetrically arranged at the second end of the first rocker element 111. That is, one first rotating element 113 is arranged on each first side plate.

[0078] The first rotating element 113 is disposed on the inner side or the outer side of the first rocker arm element 111. Generally, the first rotating element 113 is disposed on the outer side of the first side plate.

[0079] In some embodiments, the first rotating element 113 and the first rocker arm element 111 are integrally formed.

[0080] In some embodiments, the cross section of the first rotating element 113 is circular.

[0081] In some embodiments, the first rotating element 113 is a rotating shaft.

[0082] The first connecting element 114 is disposed through the closed end of the first rocker arm element 111. Specifically, the first connecting element 114 is disposed through the first bottom plate.

[0083] In some of the embodiments, the cross-section of the first connecting element 114 is rectangular.

[0084] In some of the embodiments, the first connecting element 114 is a movable hole.

[0085] like Figure 3As shown, the second rocker arm unit 120 includes a second rocker arm element 121, a second rotating element 122, a second connecting element 123 and a first sliding element 124. The second rocker arm element 121 is rotatably disposed at the second end of the first rocker arm unit 110, and the second end of the second rocker arm element 121 is detachably connected to the interface structure for installing the wiper structure; the second rotating element 122 is disposed at the first end of the second rocker arm element 121 and is hinged to the first rocker arm unit 110; the second connecting element 123 is disposed at the second rocker arm element 121 and is detachably connected to the second end of the elastic unit 130; the first sliding element 124 is disposed at the first end of the second rocker arm element 121 and is slidably connected to the second adjustment unit 150.

[0086] Specifically, the second rocker arm element 121 is rotatably disposed at the second end of the first rocker arm element 111 ; the second rotating element 122 is hinged to the first rotating element 113 .

[0087] In some embodiments, the cross section of the second rocker arm element 121 is U-shaped. Specifically, the second rocker arm element 121 includes a second bottom plate and two second side plates. The second end of the second bottom plate is provided with a second connecting element 123 and a first sliding element 124, and the second end of the second bottom plate is detachably connected to the interface structure 200; the two second side plates are symmetrically arranged on both sides of the second bottom plate, and the first end of the second side plate is provided with a second rotating element 122.

[0088] In some of the embodiments, the second rocker arm component 121 is a windshield wiper rocker arm mounted on a vehicle.

[0089] The second rotating element 122 is disposed through the open end of the second rocker arm element 121 .

[0090] The size of the second rotating element 122 matches the size of the first rotating element 113. Generally, the radial size of the second rotating element 122 is not less than the radial size of the first rotating element 113.

[0091] In some embodiments, the cross section of the second rotating element 122 is circular.

[0092] In some embodiments, there are two second rotating elements 122. The two second rotating elements 122 are symmetrically arranged at the first end of the second rocker element 121. That is, one second rotating element 122 is respectively arranged on the two second side plates.

[0093] In some embodiments, the second rotating element 122 is a rotating hole.

[0094] In some embodiments, the second connecting element 123 is integrally formed with the second rocker element 121. Specifically, the second connecting element 123 is integrally formed with the second bottom plate.

[0095] In some of the embodiments, the second connecting element 123 includes but is not limited to a hanging loop.

[0096] In some of the embodiments, the connection method between the first sliding element 124 and the second rocker arm element 121 includes but is not limited to integral molding, welding, etc.

[0097] In some embodiments, the cross section of the first sliding element 124 is C-shaped. Specifically, the first sliding element 124 includes a slide rail base and two sliding baffles. The slide rail base is disposed on the second bottom plate; the two sliding baffles are symmetrically disposed on the sides of the slide rail base and are respectively slidably connected to the second adjustment unit 150.

[0098] The size of the rail base matches the size of the second rocker arm element 121. Generally, the radial size (such as width) and axial size (such as length) of the rail base are respectively smaller than the radial size (such as width) and axial size (such as length) of the second base plate.

[0099] The size of the sliding baffle plate matches the size of the slide rail base. Generally, the axial dimension of the sliding baffle plate is equal to the axial dimension of the slide rail base.

[0100] The size of the sliding baffle plate matches the size of the second rocker arm element 121. Generally, the height of the sliding baffle plate is less than the height of the second side plate.

[0101] In some embodiments, the first sliding element 124 is a sliding rail.

[0102] like Figure 4 As shown, the elastic unit 130 includes an elastic element 131, a third connecting element 132 and a fourth connecting element 133. The elastic element 131 is disposed on the second rocker arm unit 120, and is used to provide pressure between the wiper structure and the windshield to the second rocker arm unit 120; the third connecting element 132 is disposed on the second end of the elastic element 131, and is detachably connected to the second rocker arm unit 120; the fourth connecting element 133 is disposed on the first end of the elastic element 131, and is detachably connected to the second end of the second adjustment unit 150.

[0103] Specifically, the elastic element 131 is disposed inside the second rocker arm element 121 ; the third connecting element 132 is detachably connected to the second connecting element 123 .

[0104] Generally, the axial dimension of the elastic element 131 in the natural state is smaller than the distance from the end of the first sliding element 124 to the second connecting element 123 .

[0105] In some embodiments, the elastic element 131 is a spring.

[0106] In some embodiments, the third connecting element 132 and the elastic element 131 are integrally formed.

[0107] In some of the embodiments, the third connecting element 132 includes but is not limited to a hook.

[0108] In some of the embodiments, the fourth connecting element 133 and the elastic element 131 are integrally formed.

[0109] In some of the embodiments, the fourth connecting element 133 includes but is not limited to a hook.

[0110] like Figure 5 As shown, the first adjustment unit 140 includes a first adjustment element 141 and a limiting element 142. The first adjustment element 141 is movably disposed at the second end of the first rocker arm unit 110, the first end of the first adjustment unit 140 is movably connected to the first rocker arm unit 110, and the second end of the first adjustment unit 140 is movably connected to the first end of the second adjustment unit 150; the limiting element 142 is disposed at the first end of the first adjustment element 141 and is limitedly connected to the first rocker arm unit 110.

[0111] Specifically, the first end of the first adjusting element 141 is movably connected to the first connecting element 114 ; the limiting element 142 is limitedly connected to the first rocker arm element 111 .

[0112] More specifically, the first end of the first adjusting element 141 is located at the lower side of the first bottom plate; the limiting element 142 is connected to the lower side of the first bottom plate in a limiting manner.

[0113] The size of the first adjusting element 141 matches the size of the first connecting element 114. Generally, the radial size (such as the diameter) of the first adjusting element 141 is not greater than the radial size (such as the width) of the first connecting element 114.

[0114] In some of the embodiments, the cross-section of the first adjustment element 141 is circular.

[0115] In some of the embodiments, the first adjustment element 141 is a threaded rod.

[0116] The size of the limiting element 142 matches the size of the first connecting element 114. Generally, the radial dimension of the limiting element 142 is larger than the radial dimension (such as width) of the first connecting element 114.

[0117] In some of the embodiments, the cross section of the limiting element 142 is hexagonal.

[0118] In some embodiments, the limiting element 142 is a nut.

[0119] Furthermore, the first adjustment unit 140 further includes a buffer element 143. The buffer element 143 is disposed between the limiting element 142 and the first rocker arm unit 110 to prevent the limiting element 142 and the first rocker arm unit 110 from deforming due to friction.

[0120] Specifically, the buffer element 143 is disposed at the bottom of the first rocker arm element 111 .

[0121] More specifically, the buffer element 143 is disposed at the bottom of the first bottom plate.

[0122] The size of the buffer element 143 matches the size of the first adjustment element 141. Generally, the inner diameter of the buffer element 143 is greater than the radial size of the first adjustment element 141.

[0123] The connection method between the buffer element 143 and the first rocker arm element 111 includes but is not limited to bonding.

[0124] The size of the buffer element 143 matches the size of the first rocker arm element 111. Generally, the radial size of the buffer element 143 is smaller than the radial size of the first bottom plate, and the axial size of the buffer element 143 is equal to the axial size of the first bottom plate.

[0125] The size of the buffer element 143 matches the size of the limiting element 142. Generally, the inner diameter of the buffer element 143 is smaller than the radial size of the limiting element 142, and the outer diameter of the buffer element 143 is not smaller than the radial size of the limiting element 142.

[0126] In some of the embodiments, the cross section of the buffer element 143 is circular.

[0127] In some of the embodiments, the buffer element 143 includes but is not limited to a rubber gasket and the like.

[0128] like Figure 6 As shown, the second adjustment unit 150 includes a second sliding element 151, a second adjustment element 152 and a fifth connecting element 153. The second sliding element 151 is slidably disposed at the first end of the second rocker unit 120; the second adjusting element 152 is disposed at the first end of the second sliding element 151 and is movably connected to the second end of the first adjustment unit 140; the fifth connecting element 153 is disposed at the second end of the second sliding element 151 and is detachably connected to the first end of the elastic unit 130.

[0129] Specifically, the second sliding element 151 is disposed at the second end of the elastic element 131 and is slidably connected to the first sliding element 124 ; the second adjusting element 152 is movably connected to the first adjusting element 141 ; and the fifth connecting element 153 is detachably connected to the fourth connecting element 133 .

[0130] More specifically, the second sliding element 151 is slidably connected to the two sliding baffles respectively.

[0131] The size of the second sliding element 151 matches the size of the first sliding element 124. Generally, the radial size of the second sliding element 151 is not greater than the distance between the two sliding baffles.

[0132] The size of the second sliding element 151 matches the size of the first adjusting element 141. Generally, the axial size of the second sliding element 151 is larger than the axial size of the first adjusting element 141, and the radial size of the second sliding element 151 is larger than the radial size of the first adjusting element 141.

[0133] The second adjusting element 152 is coaxially arranged with the second sliding element 151 .

[0134] The second adjusting element 152 is disposed through the first end of the second sliding element 151 .

[0135] The size of the second adjusting element 152 matches the size of the second sliding element 151. Generally, the radial size of the second adjusting element 152 is smaller than the radial size of the second sliding element 151, and the axial size of the second adjusting element 152 is smaller than the axial size of the second sliding element 151.

[0136] The size of the second adjusting element 152 matches the size of the first adjusting element 141. Generally, the radial size of the second adjusting element 152 is equal to the radial size of the first adjusting element 141.

[0137] In some of the embodiments, the cross-section of the second adjustment element 152 is circular.

[0138] In some embodiments, the second adjustment element 152 is a threaded hole.

[0139] The method of using the utility model is as follows:

[0140] Connect the elastic element 131 to the second rocker element 121 and the second adjusting element 152 respectively;

[0141] When the angle between the first rocker arm element 111 and the second rocker arm element 121 needs to be adjusted, the first adjusting element 141 is turned counterclockwise or clockwise to make the first adjusting element 141 move along the axial direction of the second adjusting element 152, thereby adjusting the relative length between the first adjusting element 141 and the second adjusting element 152.

[0142] The advantage of the utility model lies in that by providing a first adjusting unit movably connected to the first rocker arm unit and a second adjusting unit slidably connected to the second rocker arm unit, the angle between the first rocker arm unit and the second rocker arm unit can be accurately adjusted by turning the first adjusting unit, thereby solving the problem that there are too many types of rocker arms and the pressure springs are fixed and cannot adjust the pressure, resulting in increased management costs and low debugging efficiency.

[0143] Example 2

[0144] This embodiment is a supplementary embodiment of Embodiment 1.

[0145] like Figure 7 As shown, the rocker arm device 100 further includes an anti-detachment unit 160. The anti-detachment unit 160 is disposed inside the second rocker arm unit 120 and located at the second end of the second adjustment unit 150, and is used to prevent the second adjustment unit 150 from being separated from the first adjustment unit 140.

[0146] Specifically, the anti-drop unit 160 is disposed inside the second rocker arm element 121 and is located at one end of the second sliding element 151 close to the elastic element 131 .

[0147] In some of the embodiments, the connection method between the anti-detachment unit 160 and the second rocker arm element 121 includes but is not limited to integral molding and welding.

[0148] When the elastic element 131 is in a natural state, the straight-line distance from the anti-dropping element to the first connecting element 114 is smaller than the sum of the axial dimensions of the first adjusting element 141 and the axial dimensions of the second adjusting element 152 .

[0149] In some of the embodiments, the anti-drop unit 160 includes but is not limited to a limiting ring.

[0150] The advantage of this embodiment is that, by providing an anti-detachment unit, the second adjustment unit can be prevented from being separated from the first adjustment unit, thereby reducing the steps of installation and debugging and improving test efficiency.

[0151] Example 3

[0152] This embodiment relates to a wiper rocker arm pressure testing system of the utility model.

[0153] like Figure 8 As shown, a wiper rocker arm pressure test system comprises the rocker arm device 100, the interface structure 200 and the pressure sensing device 300 as described in Embodiments 1 and 2. The interface structure 200 is detachably connected to the second end of the second rocker arm unit 120 of the rocker arm device 100 and the wiper respectively; the pressure sensing device 300 is arranged on the wiper to test the pressure between the wiper and the windshield.

[0154] Specifically, the interface structure 200 is detachably connected to the end of the second rocker arm element 121 .

[0155] In some of the embodiments, the connection method between the interface structure 200 and the second rocker arm element 121 belongs to the prior art and will not be described in detail here.

[0156] In some of the embodiments, the interface structure 200 is a mounting joint for wiper blades of different models.

[0157] like Fig. 9 As shown, the pressure sensing device 300 includes a pressure sensing unit 310 and a display unit 320. The pressure sensing unit 310 is disposed on the wiper to test the pressure between the wiper and the windshield; the display unit 320 is connected to the pressure sensing unit 310 to display the pressure value detected by the pressure sensing unit 310.

[0158] In some of the embodiments, the connection method between the pressure sensing unit 310 and the wiper includes but is not limited to bonding.

[0159] In some embodiments, the pressure sensing unit 310 includes but is not limited to a pressure sensor.

[0160] The display unit 320 is in communication connection with the pressure sensing unit 310 .

[0161] In some of the embodiments, the display unit 320 includes but is not limited to an LED screen, a smart terminal, etc.

[0162] The method of using the utility model is as follows:

[0163] The first rocker arm element 111 is mounted to the wiper test bench through the first mounting element 112, the wiper is mounted to the end of the second rocker arm element 121 through the interface structure 200, and the pressure sensing unit 310 is mounted to the side of the wiper against the windshield;

[0164] When testing the performance of the wiper, the angle between the first rocker arm element 111 and the second rocker arm element 121 can be adjusted by turning the first adjusting element 141 clockwise or counterclockwise to adjust the pressure between the wiper and the windshield.

[0165] The utility model has the advantage that, by arranging a pressure sensing device on the side where the wiper abuts against the windshield, the rocker arm device can be accurately adjusted, thereby improving the test efficiency.

[0166] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A rocker arm device with adjustable pressure, characterized in that: include: A first rocker arm unit, wherein a first end of the first rocker arm unit is transmission-connected to the wiper test bench and is used for rotating under the action of the wiper test bench; a second rocker arm unit, wherein a first end of the second rocker arm unit is rotatably connected to a second end of the first rocker arm unit, and the second end of the second rocker arm unit is detachably connected to an interface structure for mounting a wiper structure; an elastic unit, wherein the elastic unit is arranged on the second rocker arm unit, and a second end of the elastic unit is detachably connected to the second rocker arm unit, and is used to provide pressure between the wiper structure and the windshield to the second rocker arm unit; A first adjusting unit, wherein the first adjusting unit is movably disposed at the second end of the first rocker arm unit, and the first end of the first adjusting unit is position-limitingly connected to the first rocker arm unit; A second adjusting unit, wherein the first end of the second adjusting unit is movably connected to the second end of the first adjusting unit, and the second end of the second adjusting unit is detachably connected to the first end of the elastic unit, and is used to adjust the angle between the first rocker arm unit and the second rocker arm unit to adjust the pressure between the wiper structure and the windshield.

2. The rocker arm device with adjustable pressure according to claim 1, characterized in that: The first rocker arm unit comprises: a first rocker arm element; a first mounting element, which is disposed at a first end of the first rocker arm element and is transmission-connected to the wiper test bench, and is used to drive the first rocker arm element to rotate under the action of the wiper test bench; A first rotating element, the first rotating element is arranged at the second end of the first rocker arm element and is hinged to the second rocker arm unit; A first connecting element is arranged at the second end of the first rocker arm element and is movably connected and limit-connected with the first adjusting unit.

3. The rocker arm device with adjustable pressure according to claim 1, characterized in that: The second rocker arm unit comprises: a second rocker arm element, the second rocker arm element being rotatably disposed at a second end of the first rocker arm unit, the second end of the second rocker arm element being detachably connected to the interface structure for mounting a wiper structure; a second rotating element, the second rotating element being disposed at a first end of the second rocker arm element and being hinged to the first rocker arm unit; a second connecting element, which is disposed on the second rocker arm element and is detachably connected to the second end of the elastic unit; A first sliding element is disposed at a first end of the second rocker arm element and is slidably connected to the second adjusting unit.

4. The rocker arm device with adjustable pressure according to claim 1, characterized in that: The elastic unit comprises: an elastic element, the elastic element being arranged on the second rocker arm unit and being used for providing pressure between the wiper structure and the windshield to the second rocker arm unit; a third connecting element, the third connecting element being disposed at the second end of the elastic element and being detachably connected to the second rocker arm unit; A fourth connecting element, wherein the fourth connecting element is arranged at the first end of the elastic element and is detachably connected to the second end of the second adjusting unit.

5. The rocker arm device with adjustable pressure according to claim 1, characterized in that: The first adjustment unit comprises: a first adjusting element, wherein the first adjusting element is movably disposed at the second end of the first rocker arm unit, the first end of the first adjusting unit is movably connected to the first rocker arm unit, and the second end of the first adjusting unit is movably connected to the first end of the second adjusting unit; A limiting element is arranged at the first end of the first adjusting element and is limitedly connected to the first rocker arm unit.

6. The rocker arm device with adjustable pressure according to claim 5, characterized in that: The first adjustment unit also includes: A buffer element is disposed between the limiting element and the first rocker arm unit to prevent the limiting element and the first rocker arm unit from deforming due to friction.

7. The rocker arm device with adjustable pressure according to claim 1, characterized in that: The second adjusting unit comprises: a second sliding element, the second sliding element being slidably disposed at a first end of the second rocker arm unit; a second adjusting element, the second adjusting element being disposed at a first end of the second sliding element and movably connected to a second end of the first adjusting unit; A fifth connecting element, wherein the fifth connecting element is disposed at the second end of the second sliding element and is detachably connected to the first end of the elastic unit.

8. The pressure-adjustable rocker arm device according to any one of claims 1 to 7, characterized in that: Also includes: An anti-slip unit is arranged inside the second rocker arm unit and located at the second end of the second adjusting unit, and is used to prevent the second adjusting unit from being separated from the first adjusting unit.

9. A wiper rocker arm pressure testing system, characterized in that: include: The rocker arm device according to any one of claims 1 to 8; An interface structure, the interface structure being detachably connected to the second end of the second rocker arm unit of the rocker arm device and the wiper respectively; A pressure sensing device is provided on the wiper and is used to test the pressure between the wiper and the windshield.

10. The wiper rocker arm pressure testing system according to claim 9, characterized in that: The pressure sensing device comprises: A pressure sensing unit, which is arranged on the wiper and is used to test the pressure between the wiper and the windshield; A display unit is connected to the pressure sensing unit and is used to display the pressure value detected by the pressure sensing unit.

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