CN218973813U

CN218973813U - Handle testing device

Info

Publication number: CN218973813U
Application number: CN202223091784.2U
Authority: CN
Inventors: 刘明华
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-05-05
Anticipated expiration: 2032-11-21

Abstract

The utility model provides a handle testing device, comprising: a workbench, a handle test fixture and two constant resistance providing assemblies. The handle test fixture comprises a rotating mechanism and a sliding mechanism, wherein the rotating mechanism comprises a rotating rod, the sliding mechanism comprises two sliding blocks, the rotating rod comprises a test end and a resistance end, and the resistance end is movably connected with the two sliding blocks; the two constant resistance providing assemblies are respectively arranged at two sides of the handle test fixture, the two constant resistance providing assemblies are connected with the two sliding blocks in one-to-one correspondence, and the two constant resistance providing assemblies respectively provide constant test resistance in opposite directions for the resistance ends through the sliding blocks. The handle testing device provided by the utility model can simulate the operating rod of a real handle, and meets the requirement of constant testing resistance during handle testing.

Description

Handle testing device

Technical Field

The utility model relates to the technical field of inspection equipment, in particular to a handle testing device.

Background

The handle test equipment on the market is manual test equipment, and 3 persons are required to cooperate during operation. One person operates the handle, obtains the moment of torsion through the moment of torsion spanner, and another person adjusts the size of load through the displacement of lead screw control slider, and the third person reads and records data, operates the computer. The original equipment is complex in operation, a lot of time is consumed for each operation, the constant torque of the equipment is adjusted manually, the obtained curve is unstable, the curve is always dithered, and the curve is inconsistent with the constant torque required by the test.

Therefore, how to provide a handle testing device to solve the defects that the existing manual testing equipment cannot meet the requirement of different handles on constant testing resistance during testing, etc. is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the utility model provides a handle testing device which can simulate the operation rod of a real handle and meet the requirement of constant testing resistance in handle testing.

The utility model provides a handle testing device, comprising: a work table; one handle test fixture and two constant resistance providing assemblies. The handle test fixture is arranged on the workbench and comprises a rotating mechanism and a sliding mechanism, wherein the rotating mechanism comprises a rotating rod, the sliding mechanism comprises two sliding blocks, the rotating rod comprises a test end and a resistance end, and the resistance end is movably connected with the two sliding blocks; the two constant resistance providing assemblies are respectively arranged at two sides of the handle test fixture, the two constant resistance providing assemblies are connected with the two sliding blocks in one-to-one correspondence, and the two constant resistance providing assemblies respectively provide constant test resistance in opposite directions for the resistance ends through the sliding blocks.

In another exemplary embodiment of the present utility model, the rotation mechanism further includes: the rotary rod is pivoted to the supporting part, and the pivot axis of the rotary rod is positioned between the testing end and the resistance end.

In still another exemplary embodiment of the present utility model, the sliding mechanism further includes: and the sliding rail is arranged on the workbench, and the two sliding blocks are movably arranged on the sliding rail. The slide rail may provide a direction of movement for both sliders.

In yet another exemplary embodiment of the present utility model, the two sliders are respectively provided with a first U-shaped opening and a second U-shaped opening, the first U-shaped opening and the second U-shaped opening are disposed opposite to each other, and the resistance end is disposed in the first U-shaped opening and the second U-shaped opening. The first and second U-shaped openings provide a rotation space for the rotation rod 1211.

In another exemplary embodiment of the present utility model, first guide grooves are symmetrically formed on two side walls of the first U-shaped opening; the two side walls of the second U-shaped opening are symmetrically provided with second guide grooves; the resistance end is provided with a driving structure, and the driving structure penetrates through the first guide groove and the second guide groove. The first guide groove and the second guide groove may guide the driving structure to move horizontally.

In yet another exemplary embodiment of the present utility model, the driving structure is a driving rod passing through the resistance end; or the driving structure is two bulges which are integrally formed on the resistance end.

In yet another exemplary embodiment of the present utility model, the handle testing device further includes: a zero adjustment structure is positionable between one of the sliders and the constant resistance providing assembly corresponding to the slider to adjust an initial testing position of the resistance tip. The zero adjusting structure can set different initial test zero positions according to test requirements.

In yet another exemplary embodiment of the present utility model, each of the constant resistance providing assemblies includes: a weight; one end of the pull rod is connected with one of the sliding blocks, and the other end of the pull rod is connected with the weight through a pull rope; and a pulley fixed on the workbench, and the pull rope is supported on the pulley. Such a constant resistance providing assembly is simple in construction and easy to implement.

In yet another exemplary embodiment of the present utility model, the zero adjustment structure includes one or more adjustment blocks.

In yet another exemplary embodiment of the present utility model, each of the constant resistance providing assemblies further includes: and the displacement sensor is matched with the pull rod to test the displacement of the pull rod. The displacement sensor can accurately measure the displacement of the pull rod.

Drawings

The above and other features and advantages of the present utility model will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

FIG. 1 is a schematic view of a handle testing device according to an embodiment of the present utility model.

FIG. 2 is a schematic view of a handle clamp according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a sliding mechanism according to an embodiment of the utility model.

Wherein, the reference numerals are as follows:

1. handle testing device

11. Working table

12. Handle test fixture

13. Zero position adjusting mechanism

14. Constant test resistance providing assembly 121 rotation mechanism

122. Sliding mechanism

123. Sliding rail

1211. Rotary rod

1212. Support part

1211A test end

1211B resistance tip

1211C driving structure

1221. Sliding block

1222. Sliding block

131. Adjusting block

1221A first U-shaped opening

1222A second U-shaped opening

1221B first guide groove

1222B second guide groove

140. Weight

141. Pull rod

1411. Limiting convex ring

142. Pulley wheel

15. Displacement sensor

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present utility model, embodiments of the present utility model will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. In addition, for simplicity and ease of understanding, components having the same structure or function in some of the figures are shown schematically only one of them, or only one of them is labeled.

Herein, "a" means not only "only this one" but also "more than one" case. Herein, "first", "second", etc. are used merely to distinguish one from another, and do not indicate their importance, order, etc.

The embodiment provides a handle testing device for simulating the operation rod of a real handle, which meets the requirement on constant resistance in handle testing, and the constant resistance can be adjusted to different force values according to different handles. And need not to adjust once more in the test process to guarantee test curve's steady, get rid of unnecessary shake, improved test environment's stability. And the handle testing device has the advantages of mechanical structure, simple structure, low price and high reliability and stability.

Referring to FIG. 1, a schematic diagram of a handle testing device is shown in one embodiment. As shown in fig. 1, the handle test device 1 includes: a table 11, a handle test fixture 12 and two constant test resistance providing assemblies 14. Wherein the table 11 is used for supporting the handle test fixture 12 and the constant resistance providing assembly 14. The constant resistance providing assembly 14 is used to provide a constant test resistance to the handle test fixture 12.

The handle test fixture 12 is provided with a handle assembly at the top end, the handle assembly receives rotational torque from the outside, and the rotational torque is converted into pushing force at the bottom of the handle assembly through the mechanical conversion inside the handle assembly, and the pushing force can act on the handle test fixture 12. By rotating the handle assembly through a certain angle, the test mechanism inside the handle test fixture 12 is pushed to produce a certain amount of displacement.

The handle test fixture 12 provided on the platform 11 will be specifically described below.

Referring to FIG. 2, a schematic diagram of a handle test fixture is shown in one embodiment. Referring to fig. 3, a schematic structure of a sliding mechanism in an embodiment is shown. As shown in fig. 2, the handle test fixture 12 is provided on the table 11, and includes a rotating mechanism 121 and a sliding mechanism 122, and the rotating mechanism 121 includes a rotating lever 1211. As shown in fig. 3, the slide mechanism 122 includes two sliders 1221 and a slider 1222.

Specifically, the rotating rod 1211 includes a test end 1211A and a resistance end 1211B. Wherein the handle assembly is mounted on the test end 1211A; the resistance end 1211B is movably coupled to the slider 1221 and the slider 1222. Two constant resistance providing assemblies 14 are coupled in one-to-one correspondence with the

blocks

1221 and 1222 and provide constant test resistance in opposite directions to the resistance end 1211B via the

blocks

1221 and 1222, respectively.

The rotating mechanism 121 may further comprise a supporting portion 1212, wherein the supporting portion 1212 is configured to support the rotating rod 1211, which is pivotally connected to the rotating rod 1211, and the pivot axis of the rotating rod 1211 is located between the testing end 1211A and the resistance end 1211B.

The slide mechanism 122 may further include a slide rail 123 to ensure stability of the resistance force applied to the slider 1221 and the slider 1222. The slide rail 123 is provided on the table 11, on which a slider 1221 and a slider 1222 are slidably provided.

A driving structure 1211C may be provided on the resistance end 1211B to better drive the movement of the slider. The driving structure 1211C is movably connected to the slider 1221 and the slider 1222 in such a manner as to pass through the slider 1221 and the slider 1222. There are a variety of implementations of the drive structure 1211C. For example, as shown in FIG. 2, the drive structure 1211C can be designed as a drive rod that passes through the resistance end 1211B; the driving structure 1211C may also be designed as two protrusions integrally formed on the resistance end 1211B.

Referring to fig. 3, the ends of the

blocks

1221 and 1222 may be specifically designed with first and second

U-shaped openings

1221A and 1222A, the first and second

U-shaped openings

1221A and 1222A being disposed opposite each other, and the resistive end 1211B being disposed within the first and second

U-shaped openings

1221A and 1222A to provide a rotational space for the rotating rod 1211. In order to guide the driving structure to move horizontally, the two side walls of the first U-shaped opening 1221A may further be symmetrically provided with a first guiding groove 1221B, the two side walls of the second U-shaped opening 1222A may further be symmetrically provided with a second guiding groove 1222B, and the driving structure 1211C passes through the first guiding groove 1221B and the second guiding groove 1222B.

Further, in order to set different initial test zero positions according to the test requirements, a zero position adjusting structure 13 may be further disposed in the handle test device of the present application, where the zero position adjusting structure 13 is disposed between a slider and a constant resistance providing component 14 corresponding to the slider, so as to adjust the initial test position of the resistance end 1211B.

The zero setting structure 13 can be designed to include only one setting block 131, or can be designed to include a plurality of setting blocks 131. When designed as an adjustment block, the initial testing position of the resistance end 1211B is changed by placing the zero adjustment structure 13 on one side of the handle grip 12. When designed as multiple adjustment blocks, the initial testing position of the adjustment resistance end 1211B can be changed by changing the number of adjustment blocks 131 on the left or right sides of the stem grip 12, and multiple initial testing positions can also be implemented with multiple adjustment blocks to adapt to different test handles for testing. For example, the adjustment block 131 is removed from between the slider 1221 and its corresponding constant resistance providing assembly 14 and when installed between the slider 1222 and its corresponding constant resistance providing assembly 14, the resistance end 1211B is moved away from the slider 1222, thereby completing the adjustment of the initial test position.

As shown in fig. 1, each constant resistance providing assembly 14 includes a weight 140, a pull rod 141, and a pulley 142. Pulley 142 is fixed to table 11, on which a pull rope is supported; the two ends of the stretching are respectively connected with a pull rod 141 and a weight 140. Wherein the amount of constant test resistance applied to the

blocks

1221 and 1222 is adjusted by varying the weight of the weight 140, the constant test resistance being used to simulate the loading of a test handle with a certain load force.

Now, the constant resistance providing unit 14 on the right side of fig. 1 is taken as an example, and one end of the pull rod 141 is connected to the slider 1221, and the other end of the pull rod 141 is connected to the weight 140 through a pull rope. Specifically, the pull rod 141 and the slider 1221 may be connected by a screw connection. A limit collar 1411 is provided near one end of the slider 1221. The zero position adjusting mechanism 13, that is, the adjusting block 131 is sleeved on the pull rod 141 and is positioned between the limiting convex ring 1411 and the sliding block 1221 so as to limit the adjusting block 131.

In order to accurately test the displacement of the pull rod, the handle test device of the present application may further be provided with a displacement sensor 15, and the displacement sensor 15 is disposed in cooperation with the pull rod 141.

The testing procedure for the handle assembly is described below in connection with fig. 1.

The handle test device shown in fig. 1 is in a first initial test position, i.e., the 0-position as shown in fig. 1 (the initial test position is determined by the adjustment block 131 provided on the side of the slider 1221). When the rotary rod 1211 is rotated counterclockwise, meaning that the rotary rod 1211 is pushed from the 0 position to the open position, the rotary rod 1211 pulls the slider 1222, and the constant resistance providing assembly 14 coupled to the slider 1222 imparts a constant resistance to movement thereof, and the slider 1221 does not move. Also, when the rotating rod 1211 is pushed to rotate clockwise, meaning that the rotating rod 1211 is pushed from the 0 position to the reset position, the rotating rod 1211 pulls the slider 1221, and the constant resistance providing assembly 14 connected to the slider 1221 gives it constant resistance to move with constant resistance, and the slider 1222 does not move.

When the adjustment block 131 is detached from between the constant resistance providing assembly 14 on the right and the slider 1221 and installed between the constant resistance providing assembly 14 on the left and the slider 1222, the initial test position of the rotary lever 1211 is shifted from the 0 position to the open position, and then the rotary lever 1211 is pushed to rotate clockwise from the open position to the reset position, at which time the rotary lever 1211 pulls the slider 1222 to move with constant resistance when the rotary lever 1211 is pushed from the open position to the reset position, and the slider 1221 does not move.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical examples of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of features, without departing from the technical spirit of the present utility model are included in the scope of the present utility model. Nouns and pronouns for humans in this patent application are not limited to a particular gender.

Claims

1. A handle testing device, comprising:

a table (11);

a handle test fixture (12) disposed on the workbench (11), the handle test fixture (12) comprising a rotation mechanism (121) and a sliding mechanism (122), the rotation mechanism (121) comprising a rotation rod (1211), the sliding mechanism (122) comprising two sliders (1221, 1222), the rotation rod (1211) comprising a test end (1211A) and a resistance end (1211B), the resistance end (1211B) being movably connected to the two sliders (1221, 1222); and

two constant resistance providing components (14) are respectively arranged at two sides of the handle test fixture (12), the two constant resistance providing components (14) are connected with the two sliding blocks (1221, 1222) in a one-to-one correspondence manner, and constant test resistance in opposite directions is respectively provided for the resistance end (1211B) through the sliding blocks (1221, 1222).

2. The handle testing device according to claim 1, wherein the rotation mechanism (121) further comprises:

-a support (1212), the rotary lever (1211) being pivotally connected to the support (1212), the pivot axis of the rotary lever (1211) being located between the test end (1211A) and the resistance end (1211B).

3. The handle testing device according to claim 1, wherein the sliding mechanism (122) further comprises:

a sliding rail (123) disposed on the workbench (11), and two sliding blocks (1221, 1222) movably disposed on the sliding rail (123).

4. The handle testing device of claim 1, wherein:

the two sliding blocks (1221, 1222) are respectively provided with a first U-shaped opening (1221A) and a second U-shaped opening (1222A), the first U-shaped opening (1221A) and the second U-shaped opening (1222A) are oppositely arranged, and the resistance end (1211B) is arranged in the first U-shaped opening (1221A) and the second U-shaped opening (1222A).

5. The handle testing device of claim 4, wherein the handle is configured to,

the two side walls of the first U-shaped opening (1221A) are symmetrically provided with first guide grooves (1221B);

the two side walls of the second U-shaped opening (1222A) are symmetrically provided with second guide grooves (1222B);

the resistance end (1211B) is provided with a driving structure (1211C), the driving structure (1211C) passing through the first guide slot (1221B) and the second guide slot (1222B).

6. The handle testing device of claim 5, wherein the handle is configured to,

the driving structure (1211C) is a driving rod passing through the resistance end (1211B); or alternatively

The driving structure (1211C) is formed as two protrusions integrally formed on the resistance end (1211B).

7. The handle testing device of claim 1, further comprising:

zero adjustment structure (13) which can be disposed between one of said sliders (1221, 1222) and said constant resistance providing assembly (14) corresponding to said sliders (1221, 1222) to adjust an initial test position of said resistance end (1211B).

8. The handle testing device according to claim 7, wherein each of said constant resistance providing assemblies (14) comprises:

a weight (140);

a pull rod (141) with one end connected to one of the sliders (1221, 1222) and the other end connected to the weight (140) via a pull cord; and

and a pulley (142) fixed to the table (11), the pulley (142) supporting the pull rope thereon.

9. The handle testing device according to claim 8, wherein the pull rod (141) is screwed to the sliding blocks (1221, 1222), a limiting convex ring (1411) is disposed at one end of the pull rod (141) near the sliding blocks (1221, 1222), and the zero adjusting structure (13) is sleeved on the pull rod (141) and located between the limiting convex ring (1411) and the sliding blocks (1221, 1222).

10. A handle testing device according to claim 7, wherein the zero adjustment structure (13) comprises one or more adjustment blocks (131).

11. The handle testing device of claim 8, further comprising:

and the displacement sensor (15) is matched with the pull rod (141) to test the displacement of the pull rod (141).