Base of handle and handle
By designing a contact interface with different degree of bending on the handle base and adjusting the slide path, the problem of insufficient force when the user pushes the handle forward, achieving the closeness of force when pushing forward and pulling backward.
Patent Information
- Application Number
- CN202421992257.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The user feels less force when pushing the handle forward than when pulling the handle backward.
A base of a handle is designed, including a first contact interface and a second contact interface. The bending degree of the first contact interface is greater than that of the second contact interface. When the slider slides on different interfaces, the compression amount and feedback force of the compression spring are different, so that the sense of force when pushing forward and pulling backward is closer.
By adjusting the slide path of the slider on different interfaces, the feedback force when pushing forward is increased, so that the force the user feels closer or equal when pushing forward and pulling backward.
Smart Images
Figure CN222914116U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering equipment, and particularly relates to a base and a handle of a handle. Background Art
[0002] Engineering equipment such as aerial work platforms and excavators are all equipped with handles. By pushing and pulling the handles, the movement of the whole vehicle or other actions can be controlled. However, the design of the pushing and pulling forces of the handles does not consider the user's physical feeling during use. When the handle is pushed forward and pulled backward by the same distance, the restoring force provided by the compression spring inside the handle is equal. However, when the user pushes the handle forward, the whole arm strength is usually used, and when the handle is pulled backward, only the wrist strength is usually used. This causes the force felt by the user when pushing the handle forward to be smaller than the force felt when pulling the handle backward. Summary of the Utility Model
[0003] The utility model provides a base and a handle of a handle to solve the technical problem that the force felt by the user when pushing the handle forward is smaller than the force felt when pulling the handle backward.
[0004] To solve the above technical problem, the utility model provides a base of a handle. A through hole for installing a main shaft is arranged at the middle position of the base; a first contact interface and a second contact interface for limiting a slider are arranged on the lower surface of the base, and the first contact interface and the second contact interface are arranged on both sides of the through hole; the shapes of the two ports of the first contact interface are both first arcs; the shapes of the two ports of the second contact interface are both second arcs; the bending degree of the first arc is greater than that of the second arc.
[0005] Optionally, the shapes of the first arc and the second arc are both circular arcs.
[0006] Optionally, the radii of the first arc and the second arc are equal.
[0007] Optionally, one end of the first arc close to the through hole and one end of the second arc close to the through hole are on the same plane, and one end of the first arc far from the through hole is higher than one end of the second arc far from the through hole.
[0008] Optionally, a first slider fixing groove is arranged at a position of the first contact interface close to the through hole, and a second slider fixing groove is arranged at a position of the second contact interface close to the through hole. The first slider fixing groove and the second slider fixing groove are used to cooperate with the slider in the initial state.
[0009] Optionally, a first limiting groove for limiting the slider is arranged at one end of the first contact interface far from the through hole.
[0010] Optionally, a second limiting groove for limiting the slider is provided at one end of the second contact interface away from the through hole.
[0011] The present utility model further provides a handle, which includes a main shaft, a base, a slider, a compression spring, a retaining piece, and the base according to any one of the above; the main shaft passes through the base and the base; the base is installed on the base; the slider is sleeved on the main shaft and contacts the first contact interface and the second contact interface of the base; the compression spring is arranged between the slider and the retaining piece; the retaining piece is installed on the main shaft.
[0012] Optionally, a main shaft limiting surface is provided on the base.
[0013] Optionally, the main shaft limiting surface is symmetrically arranged with respect to the vertical plane.
[0014] The base and the handle of a handle provided by the present utility model include a first contact interface and a second contact interface. The bending degree of the first arc corresponding to the first contact interface is greater than the bending degree of the second arc corresponding to the second contact interface. After the handle including the base is installed on the engineering equipment, the first contact interface is on the side away from the user, and the second contact interface is on the side close to the user. If the main shaft is pushed forward, the slider slides on the second contact interface; if the main shaft is pulled backward, the slider slides on the first contact interface. Since the bending degree of the first arc is greater than the bending degree of the second arc, when the slider moves the same distance towards the first contact interface and the second contact interface, the compression amount of the compression spring is greater when the slider is below the second contact interface. The greater the compression amount of the compression spring, the greater the force it feedbacks. In this way, the force feedback by the compression spring when pushing the main shaft forward is greater than the force feedback when pulling the main shaft backward; when the user pushes the main shaft forward, the user usually uses the strength of the entire arm, and when pulling the main shaft backward, the user usually only uses the strength of the wrist. In this way, the force felt by the user when pushing the handle forward and the force felt when pulling the handle backward can be made closer or equal. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of a handle provided by an embodiment of the present utility model.
[0016] Figure 2 is Figure 1 the exploded view of
[0017] Figure 3 is Figure 2 the schematic structural diagram of the base in
[0018] Figure 4 is Figure 1 the schematic structural diagram of the base in
[0019] [Description of the attached drawing reference numerals is as follows]:
[0020] Base - 1, main shaft - 2, pedestal - 3, slider - 4, compression spring - 5, retaining plate - 6;
[0021] First contact interface - 11, second contact interface - 12, through - hole - 13, first arc - 14, second arc - 15;
[0022] First slider fixing groove - 1101, first limiting groove - 1102;
[0023] Second slider fixing groove - 1201, second limiting groove - 1202;
[0024] Main shaft limiting surface - 21. Detailed implementation mode
[0025] To make the purpose, advantages and features of the present utility model clearer, the following further details a base of a handle and the handle proposed by the present utility model with reference to the attached drawings. It should be noted that the attached drawings are in a very simplified form and use non - precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model.
[0026] In the description of the present utility model, the qualifier terms such as "first" and "second" are added for convenience of description and reference, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with qualifier terms such as "first" and "second" may explicitly or implicitly include one or more of such features.
[0027] As Figures 1 - 4 shown, this embodiment provides a base 1 of a handle. A through - hole 13 for installing the main shaft 2 is provided at the middle position of the base 1; a first contact interface 11 and a second contact interface 12 for limiting the slider 4 are provided on the lower surface of the base 1, and the first contact interface 11 and the second contact interface 12 are arranged on both sides of the through - hole 13; the shapes of the two ports of the first contact interface 11 are both first arcs 14; the shapes of the two ports of the second contact interface 12 are both second arcs 15; the bending degree of the first arc 14 is greater than that of the second arc 15.
[0028] A base 1 of a handle provided in this embodiment includes a first contact interface 11 and a second contact interface 12. The bending degree of a first arc 14 corresponding to the first contact interface 11 is greater than that of a second arc 15 corresponding to the second contact interface 12. After the handle including the base 1 is installed on an engineering device, the first contact interface 11 is on the side away from the user, and the second contact interface 12 is on the side close to the user. If the main shaft 2 is pushed forward ( Figure 1 the main shaft 2 in Figure 1 is pushed to the left), the slider 4 slides on the second contact interface 12; if the main shaft 2 is pulled backward ( Figure 1 the main shaft 2 in Figure 1 is pulled to the right), the slider 4 slides on the first contact interface 11. Since the bending degree of the first arc 14 is greater than that of the second arc 15, when the slider 4 moves the same distance on the first contact interface 11 and the second contact interface 12, the compression amount of the compression spring 5 compressed by the slider 4 below the second contact interface 12 is greater. The greater the compression amount of the compression spring 5, the greater the force it feedbacks. In this way, the force feedback by the compression spring 5 when pushing the main shaft 2 forward is greater than the force feedback when pulling the main shaft 2 backward; when the user pushes the main shaft 2 forward, the user usually uses the strength of the whole arm, and when pulling the main shaft 2 backward, the user usually only uses the strength of the wrist. In this way, the force felt by the user when pushing the handle forward and the force felt when pulling the handle backward can be made closer or equal.
[0029] When specifically using the base 1 and the handle, the push-pull force value that the user feels best can be obtained by means of data collection. The push-pull force is provided by the compression spring 5 below the slider 4. By adjusting the contact shapes of the slider 4 with the first contact interface 11 and the second contact interface 12, the compression amounts of the compression spring 5 at different positions can be obtained, so as to obtain different operating force values and achieve the control of the push-pull force value.
[0030] Optionally, as Figure 3 and Figure 4 shown, the shapes of the first arc 14 and the second arc 15 are both circular arcs, which is convenient for machining to form the first arc 14 and the second arc 15. In other embodiments, the shapes of the first arc 14 and the second arc 15 can be elliptical arcs or other irregular arcs.
[0031] Optionally, as Figure 3 and Figure 4 shown, the radii of the first arc 14 and the second arc 15 are equal, so that the forward push and backward pull gears of the handle can be symmetrically set.
[0032] Optionally, as Figure 3 and Figure 4As shown, one end of the first arc 14 close to the through hole 13 and one end of the second arc 15 close to the through hole 13 are on the same plane. One end of the first arc 14 far from the through hole 13 is higher than one end of the second arc 15 far from the through hole 13. In this way, the bending degree of the first arc 14 can be greater than that of the second arc 15. One end of the first arc 14 far from the through hole 13 refers to the leftmost end of the first arc 14, and one end of the second arc 15 far from the through hole 13 refers to the rightmost end of the second arc 15. Since the compression amount of the compression spring 5 is greater when the slider 4 is below the second contact interface 12, when the slider 4 moves the same distance towards the first contact interface 11 and the second contact interface 12, the force felt by the user when pushing the handle forward and the force felt when pulling the handle backward are closer or equal.
[0033] Optionally, as Figure 1 , Figure 3 and Figure 4 shown, a first slider fixing groove 1101 is provided at a position of the first contact interface 11 close to the through hole 13, and a second slider fixing groove 1201 is provided at a position of the second contact interface 12 close to the through hole 13. The first slider fixing groove 1101 and the second slider fixing groove 1201 are used to cooperate with the slider 4 in the initial state. When the slider 4 is in the initial state, the slider 4 is located directly below the base 1. The second slider fixing groove 1201 and the second slider fixing groove 1201 can prevent the slider 4 from shaking.
[0034] Optionally, as Figure 1 , Figure 3 and Figure 4 shown, a first limiting groove 1102 for limiting the slider 4 is provided at one end of the first contact interface 11 far from the through hole 13. The first limiting groove 1102 can limit the slider 4 to prevent the slider 4 from detaching from the base 1.
[0035] Optionally, as Figure 1 , Figure 3 and Figure 4 shown, a second limiting groove 1202 for limiting the slider 4 is provided at one end of the second contact interface 12 far from the through hole 13. The second limiting groove 1202 can limit the slider 4 to prevent the slider 4 from detaching from the base 1.
[0036] As shown in Figure - Figure 4As shown, based on the same technical concept as the base 1 of a handle described above, this embodiment provides a handle, which includes a main shaft 2, a base 3, a slider 4, a compression spring 5, a retaining piece 6, and the base 1 described in any one of the above; the main shaft 2 penetrates through the base 3 and the base 1; the base 3 is installed on the base 1; the slider 4 is sleeved on the main shaft 2 and contacts the first contact interface and the second contact interface 12 of the base 1; the compression spring 5 is arranged between the slider 4 and the retaining piece 6; the retaining piece 6 is installed on the main shaft 2.
[0037] A handle provided in this embodiment includes a base 1, and the base 1 includes a first contact interface 11 and a second contact interface 12. The bending degree of the first arc 14 corresponding to the first contact interface 11 is greater than that of the second arc 15 corresponding to the second contact interface 12. After the handle including the base 1 is installed on the engineering equipment, the first contact interface 11 is on the side away from the user, and the second contact interface 12 is on the side close to the user. If the main shaft 2 is pushed forward, the slider 4 slides on the second contact interface 12; if the main shaft 2 is pulled backward, the slider 4 slides on the first contact interface 11. Since the bending degree of the first arc 14 is greater than that of the second arc 15, when the slider 4 moves the same distance towards the first contact interface 11 and the second contact interface 12, the compression amount of the compression spring 5 is greater when the slider 4 is below the second contact interface 12. The greater the compression amount of the compression spring 5, the greater the force it feedbacks. In this way, the force feedback by the compression spring 5 when pushing the main shaft 2 forward is greater than the force feedback when pulling the main shaft 2 backward; when the user pushes the main shaft 2 forward, they usually use the strength of the whole arm, and when pulling the main shaft 2 backward, they usually only use the strength of the wrist. In this way, the force felt by the user when pushing the handle forward and the force felt when pulling the handle backward can be made closer or equal.
[0038] Optionally, as Figure 1 shown, a main shaft limiting surface 21 is provided on the base 3. The main shaft limiting surface 21 can limit the stroke of the main shaft 2 to prevent the stroke of the main shaft 2 from being too large.
[0039] Optionally, as Figure 1 shown, the main shaft limiting surface 21 is symmetrically arranged with respect to the vertical plane, so that the forward and backward movement strokes of the main shaft 2 are equal.
[0040] In summary, a base 1 and a handle of a utility model provided include a first contact interface 11 and a second contact interface 12, and the bending degree of a first arc 14 corresponding to the first contact interface 11 is greater than that of a second arc 15 corresponding to the second contact interface 12. After the handle including the base 1 is installed on an engineering device, the first contact interface 11 is on the side away from the user, and the second contact interface 12 is on the side close to the user. If the main shaft 2 is pushed forward, the slider 4 slides on the second contact interface 12; if the main shaft 2 is pulled backward, the slider 4 slides on the first contact interface 11. Since the bending degree of the first arc 14 is greater than that of the second arc 15, when the slider 4 moves the same distance toward the first contact interface 11 and the second contact interface 12, the compression amount of the compression spring 5 is greater when the slider 4 is below the second contact interface 12. The greater the compression amount of the compression spring 5, the greater the force it feedbacks. In this way, the force feedback by the compression spring 5 when pushing the main shaft 2 forward is greater than the force feedback when pulling the main shaft 2 backward; in addition, when the user pushes the main shaft 2 forward, the user usually uses the strength of the entire arm, and when pulling the main shaft 2 backward, the user usually only uses the strength of the wrist. In this way, the force felt by the user when pushing the handle forward and the force felt when pulling the handle backward can be made closer or equal.
[0041] The above description is only a description of the preferred embodiment of the utility model, and does not limit the scope of the utility model in any way. Any changes and modifications made by those of ordinary skill in the art according to the above disclosure belong to the protection scope of the utility model.
Claims
1. A handle base, characterized in that: A through hole for installing the main shaft is provided in the middle position of the base; a first contact interface and a second contact interface for limiting the slider are provided on the lower surface of the base, and the first contact interface and the second contact interface are arranged on both sides of the through hole; the shapes of the two ports of the first contact interface are both the first arc; the shapes of the two ports of the second contact interface are both the second arc; the curvature of the first arc is greater than that of the second arc.
2. A handle base as claimed in claim 1, characterized in that: The first arc line and the second arc line are both in the shape of circular arcs.
3. A handle base as claimed in claim 2, characterized in that: The radii of the first arc and the second arc are equal.
4. A handle base as claimed in claim 3, characterized in that: One end of the first arc line close to the through hole and one end of the second arc line close to the through hole are on the same plane, and one end of the first arc line away from the through hole is higher than one end of the second arc line away from the through hole.
5. A handle base as claimed in claim 1, characterized in that: A first slider fixing groove is provided at a position of the first contact interface close to the through hole, and a second slider fixing groove is provided at a position of the second contact interface close to the through hole. The first slider fixing groove and the second slider fixing groove are used to cooperate with the slider in an initial state.
6. A handle base as claimed in claim 1, characterized in that: A first limiting groove for limiting the sliding block is provided at one end of the first contact interface away from the through hole.
7. A handle base as claimed in claim 1, characterized in that: A second limiting groove for limiting the sliding block is provided at one end of the second contact interface away from the through hole.
8. A handle, characterized in that: The handle includes a main shaft, a base, a slider, a compression spring, a baffle and a base as described in any one of claims 1 to 7; the main shaft passes through the base and the base; the base is installed on the base; the slider is sleeved on the main shaft and contacts the first contact surface and the second contact interface of the base; the compression spring is arranged between the slider and the baffle; the baffle is installed on the main shaft.
9. A handle according to claim 8, characterized in that: A main shaft limiting surface is arranged on the base.
10. A handle according to claim 9, characterized in that: The main shaft limiting surface is symmetrically arranged with respect to the vertical plane.