A locomotive backrest chair fixing device

Abstract

A locomotive backrest chair fixing device, characterized in that: comprising a chair beam, a lock, a lock head fixing assembly and a beam connecting piece; the lock head fixing assembly comprises a lock head fixing piece and a lock head connected therewith, the lock head fixing piece comprises a locking boss, and the lock head comprises a key, a lock cylinder and a lock tongue connected therewith; the lock is fixed on the chair beam, the chair beam is provided with a locking hole, and the locking hole can pass through the locking boss of the lock head fixing piece; the beam connecting piece is connected with the chair beam and is used for fixing the chair beam on a locomotive tail seat. The present application has the characteristics of convenient operation and compact structure and can solve the problems of locking and loss prevention of the locomotive backrest chair.

Description

Technical Field

[0001] This invention relates to the field of motorcycle and electric vehicle technology, and in particular to a motorcycle backrest seat fixing device for electric vehicles or motorcycles. Background Technology

[0002] Electric vehicles and motorcycles are common modes of transportation for residents and have also become important tools for same-city logistics and food delivery in modern life. Currently, there are tens of millions of same-city logistics and food delivery riders. These riders work very hard, so I invented a motorcycle backrest chair, as shown in patent applications 2024223033545 and 2024211505691, which makes it convenient for riders to use as a backrest chair while riding.

[0003] However, in these inventions, the locomotive backrest is fixed to the locomotive using a simple fixing device, but this technical solution has practical problems: 1. The fixing device uses a simple pin to lock the locomotive backrest, but the pin is easy to come loose during bumps; 2. To prevent the locomotive backrest from being lost, a chain lock is needed; 3. The rider needs to change the battery frequently, and plugging and unplugging the pin and opening the chain lock takes time, making the operation inconvenient. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a locomotive backrest seat fixing device that can easily lock and fix the locomotive backrest seat to the locomotive, avoiding the problems of it falling off due to bumps and preventing loss.

[0005] To achieve the above objectives, a locomotive backrest seat fixing device is provided, including a seat locking beam, a latch, a lock head fixing assembly, and a beam connector; wherein the lock head fixing assembly includes a lock head fixing member and a lock head connected thereto, the lock head fixing member includes a locking boss, and the lock head includes a key, a lock cylinder, and a lock tongue connected thereto; wherein the latch is fixed to the seat locking beam, the seat locking beam has a locking hole through which the locking boss of the lock head fixing member can pass, and the beam connector is connected to the seat locking beam for fixing the seat locking beam to the locomotive tail seat.

[0006] Preferably, the locking chair beam is a C-shaped metal beam.

[0007] Preferably, the locking boss of the lock head fixing member is circular and symmetrically arranged on the lock head fixing member.

[0008] Preferably, the beam connector includes a straight clamp or a C-shaped clamp and a clamp bolt assembly.

[0009] Preferably, the lock head fixing part is made of metal casting.

[0010] Furthermore, the lock cylinder includes a housing, an inner lock cylinder, and multiple sets of pins and springs positioned within the inner lock cylinder.

[0011] In summary, the present invention has the following beneficial effects: it solves the problems of locking and preventing loss of locomotive backrest seats in a convenient and compact manner. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view (in the detached state) of Example 1 of the present invention; Figure 2 This is a perspective view (locked state) of a lock fixing component according to an example of the present invention. Figure 3 This is a cross-sectional view (locked state) of Example 1 of the present invention. Figure 4 This is a perspective view of the usage state of Example 1 of the present invention; Figure 5 This is a perspective view of Example 2 of the present invention. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 A perspective view of an embodiment of a locomotive backrest seat fixing device is shown, in which the locking head fixing assembly 2 is detached from the locking seat beam 1. The fixing device includes a locking seat beam 1 made of C-shaped steel, with a locking buckle 3 fixed above it and two positioning holes 11 on both sides. The lower part of the locking seat beam 1 includes a beam connector consisting of a straight clamping plate 31, two sets of bolts 32, and nuts 33. Tightening the bolts 32 allows for connection to the locomotive tail frame.

[0016] like Figure 2 The lock head fixing assembly 2 is shown, which includes a lock head fixing member 21 and a cylindrical lock head 23. The lock head fixing member 21 is precision cast from cast steel and includes an upper lock head fixing member body 211 and a lower locking boss 212. The lock head fixing member body 211 has holes for fixing the lock head 23. The locking boss 212 is cylindrical and symmetrically arranged on the lock head fixing member 21.

[0017] like Figure 3The diagram shows a cross-sectional view of the locomotive seat backrest fixing device in the locked state. The lock cylinder 23 includes a lock cylinder 231, a lock tongue 232, and a key 233. In the diagram, the lock tongue 232 is in the extended position, precisely engaged in the groove of the latch 4, thus locking the lock cylinder fixing assembly 2 onto the seat beam 1. When the lock tongue 232 retracts, the lock cylinder fixing assembly 2 can be opened, allowing it to disengage from the seat beam 1 and remain in the locked position. Figure 1 state.

[0018] In fact, the lock cylinder 231 is a common product on the market. The lock cylinder 231 has the typical structure of a general mechanical lock, such as a housing, a rotatable inner lock cylinder, and multiple sets of pins and springs positioned on it. As structural components of a general mechanical lock, these are not the focus of this invention and will not be elaborated upon here.

[0019] like Figure 4 The locomotive backrest seat fixing device is shown in use: the straight clamp 31 and bolt 32 of the beam connector 3 clamp the fixing device on the locomotive tail seat 200; the fixing tube 100 under the locomotive backrest seat is inserted into the cavity of the C-shaped locking beam 1, and the fixing tube 100 is provided with two holes that cooperate with the locking boss 212 of the lock head fixing member 21 to fix the locomotive backrest seat on the locomotive.

[0020] like Figure 5 As shown, this is a second embodiment of a locomotive backrest seat fixing device. In this example, the seat locking beam 1 is clamped onto the locomotive crossbeam 201 using a C-shaped clamp 35 and a bolt group 36. After tightening the bolt group 36, the seat locking beam 1 is fixed to the locomotive.

[0021] Obviously, the embodiments described above are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are possible: for example, the lock head fixing body 211 and the lower locking boss 212 of the lock head fixing member 21 can be separate, using a combination of the body and the positioning pin; for example, the beam connector can also use a C-type clamping method in addition to the pattern shown in the figure. However, this is not the core point of the present invention, and is easily conceived.

[0022] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, non-critical connection methods are not described in detail, and not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0023] Furthermore, any reference numerals in the claims should not be construed as limiting the claims. The verb "comprising" and its variations do not exclude the presence of other elements or steps besides those declared in the claims. The indefinite article "a" preceding an element or step does not exclude the presence of a plurality of such elements or steps.

[0024] It should be noted that the embodiments described above are for illustrative purposes only and not for limiting the present invention. All other implementations obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It is understood that modifications and variations can be made to the present invention as long as they do not depart from the spirit and scope of the present invention. The above modifications and variations are considered to be within the scope of the present invention and the appended claims. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A locomotive backrest seat fixing device, characterized in that: Includes the chair beam, latch, lock head fixing assembly, and beam connector; -The lock head fixing assembly includes a lock head fixing member and a lock head connected thereto. The lock head fixing member includes a locking boss. The lock head includes a key, a lock cylinder and a lock tongue connected thereto. -The latch is fixed to the locking chair beam, which has a locking hole through which the locking boss of the lock head can pass; -The beam connector is connected to the lock seat beam and is used to fix the lock seat beam to the tail of the locomotive.

2. The locomotive backrest seat fixing device according to claim 1, characterized in that... The lock chair beam is a C-shaped metal beam.

3. The locomotive backrest seat fixing device according to claim 1, characterized in that... The locking boss of the lock head fixing member is circular and symmetrically arranged on the lock head fixing member.

4. The locomotive backrest seat fixing device according to claim 1, characterized in that... The beam connector includes a straight clamp or a C-shaped clamp and a clamp bolt assembly.

5. The locomotive backrest seat fixing device according to claim 1, characterized in that... The lock head fastener is made of metal casting.

6. The locomotive backrest seat fixing device according to claim 1, characterized in that, The lock cylinder includes a housing, an inner lock cylinder, and multiple sets of pins and springs positioned within the inner lock cylinder.

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