Lever type back door inner gap detection device for automobile trunk

Abstract

The utility model provides a lever type back door inner gap detection device for an automobile trunk, which comprises a positioning clamp, a detection lever, a lever rotating shaft, a detection head and a dial indicator, the positioning clamp is used for being detachably clamped on a sealing strip mounting part of the side wall of the trunk, the detection lever is rotatably mounted on the positioning clamp through the lever rotating shaft, and the detection head is used for detecting the back door inner gap of the trunk. The detection head is fixed at one end of the detection lever, at least one part of the detection head extends out of the positioning clamp and is used for being in contact with the trunk cover, and the other end of the detection lever can be in contact with a measuring head of the dial indicator. After the device is integrally installed, the positioning clamp and the dial indicator are kept still; afterwards, the trunk cover is closed, the trunk cover acts on the detection head, the detection lever is driven to rotate relative to the positioning clamp with the lever rotating shaft as the fulcrum, the dial indicator detects the displacement of the other end of the detection lever, and therefore the back door inner gap between the trunk cover and the sealing strip installation part after the trunk cover is closed is detected, the detection precision is high, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile inspection tools, in particular to a lever-type back door inner gap detection device for an automobile back box. Background Art

[0002] The main structure of a car trunk consists of fixed trunk side panels and a retractable trunk lid. The outer edges of the trunk side panels are provided with sealing strip mounting portions, to which a sealing strip is fixedly mounted. When the trunk lid is closed, it abuts against the trunk side panel sealing strips, providing waterproof, dustproof, and noise-isolating properties.

[0003] Before installing the sealing strip, it is usually necessary to check the gap between the rear tailgate and the rear tailgate side panels. This gap is also known as the backdoor clearance. Only when the backdoor clearance is within the allowable range can the sealing strip be installed.

[0004] At present, the detection of the gap in the tailgate is achieved by repeatedly measuring with a gap gauge. The detection efficiency is low, the detection accuracy is not high, and the measurement repeatability and reproducibility are poor, which easily leads to detection errors. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a lever-type back door inner gap detection device for a car trunk, which has high detection efficiency and high precision.

[0006] To achieve the above-mentioned purpose, the utility model provides a lever-type tailgate inner gap detection device for a car trunk, which is used to detect the tailgate inner gap between the sealing strip mounting portion on the trunk side panel and the trunk lid. The lever-type tailgate inner gap detection device includes a positioning fixture, a detection lever, a lever shaft, a detection head, and a dial indicator. The positioning fixture is used to be detachably clamped on the sealing strip mounting portion of the trunk side panel, and the detection lever is rotatably mounted on the positioning fixture through the lever shaft. The detection head is fixed to one end of the detection lever, and at least a portion of the detection head extends from the positioning fixture and is used to contact the trunk lid. The other end of the detection lever can contact the probe of the dial indicator.

[0007] A preferred solution of the above technical solution is: the detection head is a column component, and the detection head is threadedly connected to the detection lever.

[0008] The preferred solution of the above technical solution is: the positioning fixture includes a fixture main body, a fixture positioning block fixed to the fixture main body, a clamping groove formed between the fixture main body and the fixture positioning block, a fastening connection block, and a fastening bolt, the clamping groove is used to accommodate the sealing strip mounting portion of the trunk side panel, the fastening connection block is installed on the fixture main body through the fastening bolt, a fastening hole for accommodating the fastening bolt is provided in the fixture main body, the fastening hole is connected with the clamping groove and allows the end of the fastening bolt to extend into the clamping groove, the fixture main body and the fixture positioning block are both provided with a lever mounting groove for accommodating the detection lever, and the detection lever is rotatably mounted on the fixture main body through the lever shaft.

[0009] The preferred solution of the above technical solution is: the clamp positioning block is L-shaped, and the clamp positioning block includes a fixing part fixed to the top of the clamp body by screws, and a clamping limit part vertically bent and extended from the end of the fixing part, the clamping limit part is distributed on the outer side of the clamp body, and the clamping groove is formed between the clamping limit part and the clamp body.

[0010] The preferred solution of the above technical solution is: the fastening connection block is T-shaped, and the fastening connection block includes a connection block main body and a connection block positioning part extending from the connection block main body. The connection block main body is distributed on the outer side of the clamp main body and is connected to the clamp main body through a fastening bolt, and the connection block positioning part is inserted into the lever mounting groove of the clamp main body and is positioned and matched with the lever mounting groove of the clamp main body.

[0011] A preferred solution of the above technical solution is: a spring is sleeved on the fastening bolt, and the spring abuts between the head of the fastening bolt and the connecting block body.

[0012] The preferred solution of the above technical solution is: the lever-type tailgate internal gap detection device also includes a zero-position pin that is pluggable and inserted in the positioning fixture and the detection lever, the zero-position pin is parallel to the lever shaft, and the two are arranged side by side along the extension direction of the detection lever, and the detection lever is provided with a zero-position hole that cooperates with the zero-position pin.

[0013] The preferred solution of the above technical solution is: the lever-type back door internal gap detection device also includes a first bearing and a second bearing both fixed in the detection lever, and a third bearing fixed in the positioning fixture, the lever shaft is passed through the first bearing, and both ends are fixed in the positioning fixture, the second bearing can be coaxial with the third bearing, the second bearing is fixed in the zero-position hole, the zero-position pin includes a fixed hand-held shaft portion and a detection shaft portion, the hand-held shaft portion is distributed on the outside of the positioning fixture, and the detection shaft portion is pluggable and inserted into the second bearing and the third bearing.

[0014] The preferred solution of the above technical solution is: the lever-type back door internal gap detection device also includes a dial base, the dial indicator is fixed to the dial base, the positioning fixture is provided with a measuring positioning groove, the dial base is provided with a measuring positioning part, and the measuring positioning part can contact and cooperate with the groove wall surface of the measuring positioning groove.

[0015] As described above, the present invention relates to a lever-type back door inner gap detection device for a car trunk, which has the following features:

[0016] Beneficial effects:

[0017] The present application realizes the detachable connection of the lever-type tailgate inner gap detection device as a whole on the sealing strip mounting part through the detachable connection of the positioning clamp on the sealing strip mounting part; after the overall installation, the positioning clamp and the dial indicator remain stationary; thereafter, the tailgate lid is closed, and the tailgate lid acts on the detection head to drive the detection lever to rotate relative to the positioning clamp with the lever shaft as the fulcrum, and the dial indicator detects the displacement of the other end of the detection lever, thereby detecting the tailgate inner gap between the tailgate and the sealing strip mounting part after the tailgate lid is closed. The detection accuracy is high, and only the positioning clamp needs to be installed, which is easy to operate, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figures 1 to 3 Schematic diagram of the structure of the lever-type tailgate inner gap detection device in this application at different viewing angles.

[0019] Figure 4 This is a schematic diagram of the assembly between the detection lever, lever shaft and zero pin in this application.

[0020] Figure 5 This is a schematic diagram of the detection status of the lever-type tailgate inner gap detection device in this application.

[0021] Component number description

[0022] 10 rear trunk side panel

[0023] 101 Sealing strip installation part

[0024] 20 tailgate

[0025] 30 Positioning fixture

[0026] 31 fixture body

[0027] 311 fastening hole

[0028] 312 measuring positioning groove

[0029] 32 fixture positioning block

[0030] 321 Fixed part

[0031] 322 card limit part

[0032] 33 Card slot

[0033] 34 Fastening connection block

[0034] 341 Connection block body

[0035] 342 connection block positioning part

[0036] 35 Fastening bolts

[0037] 36 Lever mounting slot

[0038] 37 Spring

[0039] 40 Detection lever

[0040] 41 Zero hole

[0041] 50 lever shaft

[0042] 60 detection head

[0043] 70 dial indicator

[0044] 80 Zero pin

[0045] 81 Handheld shaft

[0046] 82 Detection shaft

[0047] 91 First Bearing

[0048] 92 Second bearing

[0049] 93 Third bearing

[0050] 110 watch base

[0051] 111 Measurement and positioning unit DETAILED DESCRIPTION

[0052] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0053] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of this utility model. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0054] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0055] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0056] The utility model provides a lever-type back door inner gap detection device for a car trunk. Figure 5 As shown, the car trunk includes a fixed trunk side panel 10 and an openable trunk lid 20. The outer edge of the trunk side panel 10 is provided with a sealing strip mounting portion 101 for mounting a sealing strip. Before installing the sealing strip, the lever-type trunk lid inner gap detection device of the present application is used to detect the inner trunk gap between the sealing strip mounting portion 101 on the trunk side panel 10 and the trunk lid 20 after the trunk lid 20 is closed.

[0057] like Figures 1 to 3As shown, the lever-type tailgate inner gap detection device involved in the present application includes a positioning fixture 30, a detection lever 40, a lever shaft 50, a detection head 60, and a dial indicator 70. The positioning fixture 30 is used to be detachably clamped on the sealing strip mounting portion 101 of the rear trunk side panel 10, thereby detachably mounting the lever-type tailgate inner gap detection device on the sealing strip mounting portion 101 of the rear trunk side panel 10. The detection lever 40 is rotatably mounted on the positioning fixture 30 via the lever shaft 50, and the lever shaft 50 constitutes the rotation fulcrum of the detection lever 40; the detection head 60 is fixed to one end of the detection lever 40, and at least a portion of the detection head 60 extends from the positioning fixture 30 and is used to contact the rear trunk lid 20; the other end of the detection lever 40 can contact the probe of the dial indicator 70.

[0058] When measuring the back door inner gap, with the trunk lid 20 open, the positioning fixture 30 is installed on the sealing strip mounting portion 101 of the trunk side panel 10. The positioning fixture 30 remains stationary, and the dial indicator 70 also remains stationary. Afterwards, the trunk lid 20 is closed, and the trunk lid 20 acts on the detection head 60, driving the detection lever 40 to rotate relative to the positioning fixture 30 with the lever shaft 50 as the fulcrum. The dial indicator 70 detects the displacement of the other end of the detection lever 40, thereby detecting the back door inner gap between it and the sealing strip mounting portion 101 after the trunk lid 20 is closed. When the detected back door inner gap is within the allowable range, the subsequent sealing strip installation operation can be carried out. This application has high detection accuracy, and only the positioning fixture 30 needs to be installed, which is convenient to operate, thereby improving detection efficiency. In addition, the positioning fixture 30 in this application can be repeatedly disassembled and assembled on the sealing strip mounting portion 101 of the trunk side panel 10, and the measurement repeatability and reproducibility are good.

[0059] Preferably, the detection head 60 is a column component, and the detection head 60 is threadedly connected to the detection lever 40. The height of the protruding part of the detection head 60 can be adjusted to be suitable for different detection occasions.

[0060] Furthermore, the preferred structure of the positioning fixture 30 is as follows: Figures 1 to 3As shown, the positioning fixture 30 includes a fixture body 31, a fixture positioning block 32 fixed to the fixture body 31, a clamping groove 33 formed between the fixture body 31 and the fixture positioning block 32, a fastening connection block 34, and a fastening bolt 35. The clamping groove 33 is used to accommodate the sealing strip mounting portion 101 of the trunk side panel 10. The fastening connection block 34 is installed on the fixture body 31 through the fastening bolt 35. A fastening hole 311 for accommodating the fastening bolt 35 is provided in the fixture body 31. The fastening hole 311 is communicated with the clamping groove 33 and allows the end of the fastening bolt 35 to extend into the clamping groove 33. A lever mounting groove 36 for accommodating the detection lever 40 is provided in the fixture body 31 and the fixture positioning block 32. The detection lever 40 is rotatably mounted on the fixture body 31 through the lever shaft 50. The width of the clamping groove 33 is greater than the thickness of the sealing strip mounting part 101, so that the positioning fixture 30 can be easily clamped on the sealing strip mounting part 101; after clamping, tighten the fastening bolt 35 until the fastening bolt 35 extends out of the fastening hole 311 and presses against the sealing strip mounting part 101, thereby fixing the positioning fixture 30 as a whole on the sealing strip mounting part 101; after the inspection is completed, loosen the fastening bolt 35 to release its pressure on the sealing strip mounting part 101, and then the positioning fixture 30 can be removed from the sealing strip mounting part 101.

[0061] Further, if Figures 1 to 3 As shown, the clamp positioning block 32 is L-shaped, and the clamp positioning block 32 includes a fixing portion 321 fixed to the top of the clamp body 31 by screws, and a clamping limit portion 322 vertically bent and extended from the end of the fixing portion 321. The clamping limit portion 322 is distributed on the outer side of the clamp body 31, and a clamping groove 33 is formed between the clamping limit portion 322 and the clamp body 31.

[0062] Further, if Figures 1 to 3 As shown, the fastening connection block 34 is T-shaped, and the fastening connection block 34 includes a connection block body 341 and a connection block positioning portion 342 extending from the connection block body 341. The connection block body 341 is distributed on the outer side of the clamp body 31 and is connected to the clamp body 31 through a fastening bolt 35. The connection block positioning portion 342 is inserted into the lever mounting groove 36 of the clamp body 31 and is positioned and matched with the lever mounting groove 36 of the clamp body 31.

[0063] Preferably, a spring 37 is sleeved on the fastening bolt 35 , and the spring 37 abuts between the head of the fastening bolt 35 and the connecting block body 341 , so as to facilitate unscrewing of the fastening bolt 35 .

[0064] Further, if Figures 1 to 3As shown, the lever-type tailgate inner clearance detection device also includes a zero pin 80 that is pluggably inserted into the positioning fixture 30 and the detection lever 40. The zero pin 80 is parallel to the lever shaft 50, and the two are arranged side by side along the extension direction of the detection lever 40. The detection lever 40 is provided with a zero hole 41 that cooperates with the zero pin 80. Before testing, the zero pin 80 is first inserted into the zero hole 41, and the reading of the dial indicator 70 at this time is used to check whether the theoretical surface is accurate. If it is determined to be accurate, the zero pin 80 is removed from the zero hole 41, and the tailgate inner clearance is then tested.

[0065] Furthermore, the assembly structure of the lever shaft 50 and the zero pin 80 in the positioning fixture 30 and the detection lever 40 is preferably as follows: Figures 1 to 4 As shown, the lever-type back door inner gap detection device also includes a first bearing 91 and a second bearing 92, both of which are fixed in the detection lever 40, and a third bearing 93, which is fixed in the fixture body 31 of the positioning fixture 30. The lever shaft 50 is inserted into the first bearing 91 and fixed at both ends in the positioning fixture 30, thereby realizing the rotational installation of the detection lever 40 in the fixture body 31. The second bearing 92 is fixed in the zero-position hole 41, and the second bearing 92 can be coaxial with the third bearing 93. The zero-position pin 80 includes a fixed hand-held shaft portion 81 and a detection shaft portion 82. The hand-held shaft portion 81 is distributed on the outside of the positioning fixture 30, and the detection shaft portion 82 is pluggable and inserted into the second bearing 92 and the third bearing 93. The hand-held shaft portion 81 and the detection shaft portion 82 of the zero-position pin 80 are both cylindrical structures. The outer diameter of the hand-held shaft portion 81 is larger than the outer diameter of the detection shaft portion 82. The hand-held shaft portion 81 facilitates the insertion and removal of the zero-position pin 80 in the fixture body 31 and the detection lever 40.

[0066] Further, if Figures 1 to 3 As shown, the lever-type tailgate inner gap detection device also includes a dial base 110, the dial indicator 70 is fixed to the dial base 110, a measuring positioning groove 312 is provided on the fixture body 31 of the positioning fixture 30, and a measuring positioning portion 111 is provided on the dial base 110. The measuring positioning portion 111 can contact and cooperate with the groove wall surface of the measuring positioning groove 312, so that the dial indicator 70 is stationary relative to the positioning fixture 30 during the measurement process.

[0067] In summary, the present application can detect the back door inner gap efficiently and accurately, and has good measurement repeatability and reproducibility, ultimately effectively improving the quality of the car trunk.

[0068] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A lever-type back door inner gap detection device for a car trunk, used for detecting the back door inner gap between the sealing strip mounting portion (101) on the trunk side panel (10) and the trunk cover (20), characterized in that: The lever-type back door inner gap detection device includes a positioning fixture (30), a detection lever (40), a lever shaft (50), a detection head (60), and a dial indicator (70), wherein the positioning fixture (30) is used to be detachably clamped on the sealing strip mounting portion (101) of the back box side panel (10), the detection lever (40) is rotatably mounted on the positioning fixture (30) through the lever shaft (50), the detection head (60) is fixed to one end of the detection lever (40), at least a part of the detection head (60) extends from the positioning fixture (30) and is used to contact the back box cover (20), and the other end of the detection lever (40) can contact the probe of the dial indicator (70).

2. The lever-type tailgate inner gap detection device according to claim 1, characterized in that: The detection head (60) is a column component, and the detection head (60) is threadedly connected to the detection lever (40).

3. The lever-type tailgate inner gap detection device according to claim 1, characterized in that: The positioning fixture (30) comprises a fixture body (31), a fixture positioning block (32) fixed to the fixture body (31), a clamping groove (33) formed between the fixture body (31) and the fixture positioning block (32), a fastening connection block (34), and a fastening bolt (35), wherein the clamping groove (33) is used to accommodate a sealing strip mounting portion (101) of a rear trunk side panel (10), and the fastening connection block (34) is mounted on the fixture body (31) via the fastening bolt (35). A fastening hole (311) for accommodating a fastening bolt (35) is provided in the clamp body (31), and the fastening hole (311) is communicated with the clamping groove (33) and allows the end of the fastening bolt (35) to extend into the clamping groove (33). A lever mounting groove (36) for accommodating a detection lever (40) is provided in both the clamp body (31) and the clamp positioning block (32), and the detection lever (40) is rotatably mounted on the clamp body (31) via a lever shaft (50).

4. The lever-type tailgate inner gap detection device according to claim 3, characterized in that: The clamp positioning block (32) is L-shaped, and includes a fixing portion (321) fixed to the top of the clamp body (31) by screws, and a clamping limit portion (322) vertically bent and extended from the end of the fixing portion (321). The clamping limit portion (322) is distributed on the outer side of the clamp body (31), and the clamping groove (33) is formed between the clamping limit portion (322) and the clamp body (31).

5. The lever-type tailgate inner gap detection device according to claim 3, characterized in that: The fastening connection block (34) is T-shaped, and includes a connection block body (341) and a connection block positioning portion (342) extending from the connection block body (341). The connection block body (341) is distributed on the outer side of the clamp body (31) and is connected to the clamp body (31) through a fastening bolt (35). The connection block positioning portion (342) is inserted into the lever mounting groove (36) of the clamp body (31) and is positioned and matched with the lever mounting groove (36) of the clamp body (31).

6. The lever-type tailgate inner gap detection device according to claim 5, characterized in that: A spring (37) is sleeved on the fastening bolt (35), and the spring (37) abuts between the head of the fastening bolt (35) and the connecting block body (341).

7. The lever-type tailgate inner gap detection device according to claim 1, characterized in that: The invention also includes a zero position pin (80) that is pluggable and inserted into the positioning fixture (30) and the detection lever (40). The zero position pin (80) is parallel to the lever shaft (50), and the two are arranged side by side along the extension direction of the detection lever (40). The detection lever (40) is provided with a zero position hole (41) that matches the zero position pin (80).

8. The lever-type tailgate inner gap detection device according to claim 7, characterized in that: The invention also includes a first bearing (91) and a second bearing (92) both fixed in the detection lever (40), and a third bearing (93) fixed in the positioning fixture (30); the lever shaft (50) is arranged in the first bearing (91) and fixed at both ends in the positioning fixture (30); the second bearing (92) can be coaxial with the third bearing (93); the second bearing (92) is fixed in the zero position hole (41); the zero position pin (80) includes a handheld shaft portion (81) and a detection shaft portion (82) fixed to each other; the handheld shaft portion (81) is distributed outside the positioning fixture (30); and the detection shaft portion (82) is pluggable and inserted in the second bearing (92) and the third bearing (93).

9. The lever-type tailgate inner gap detection device according to claim 1, characterized in that: The device further comprises a dial indicator (110), the dial indicator (70) is fixed to the dial indicator (110), the positioning fixture (30) is provided with a measuring positioning groove (312), the dial indicator (110) is provided with a measuring positioning portion (111), and the measuring positioning portion (111) can contact and cooperate with the groove wall surface of the measuring positioning groove (312).

Images